29results about How to "Prevent tripping" patented technology

The utility model provides a rotary adsorption type mirror structure which comprises a shell, a lens and an adsorption assembly, the lens and the adsorption assembly are oppositely connected to the shell, the bottom wall of the shell protrudes towards one side to form an installation base, the top wall of the installation base is concavely provided with an installation groove, the side wall of the installation base is provided with an installation opening, and the installation opening is communicated with the installation groove. A guide slope obliquely extends from one end to the other end of the edge of the mounting opening, and a clamping groove is formed in the top end of the guide slope; the lens is buckled and fixed on the mounting groove through a fixing sheet; the adsorption assembly comprises a sealing membrane and a base piece which are fixedly connected, the sealing membrane can cover the outer side of the shell, the base piece is rotationally connected into the installation base, a spring is connected between the base piece and the installation base, and the base piece is provided with a clamping block corresponding to the installation opening in a protruding mode. And the clamping block can move along the guide slope to be buckled and fixed with the clamping groove. The mirror structure is convenient to mount and operate and smooth to use, and has a good damping effect and a firm connecting structure.

A cable channel environment automatic adjusting device disclosed by the present invention comprises a monitoring module, a communication module, a CPU processor, a power supply module and a control module, an output end of the monitoring module is connected with the CPU processor, a power supply port of the CPU processor is connected with the power supply module, the CPU processor is further electrically connected with the communication module and the control module, and the communication module is wirelessly connected to a mobile equipment terminal. The monitoring module collects water level, temperature, humidity and video environment information of accumulated water of the cable channel and transmits the environment information to the CPU processor, and the control module is started through the CPU processor to automatically adjust the environment of the cable channel. The cable can reliably operate in a normal-temperature and dry environment, the service life of the cable is effectively prolonged, the power failure time is shortened, and the power supply reliability is improved.

The utility model relates to a relative motion support steel structure with a plane rotation function, which comprises a shank frame, and the shank frame is provided with an overturning frame and a rotation driving assembly for driving the overturning frame to rotate towards one side. The guide piece slides on the shank frame in a guiding mode in the transverse direction, the pull rod is arranged on the shank frame in a swinging mode, the pull rod driving piece drives the pull rod to swing, one end of the pull rod is in linkage with the pull rod driving piece, the other end of the pull rod is hinged to the overturning frame, and the overturning frame is connected to the guide piece and can rotate relative to the shank frame. The space on one side of the shank frame can be released in a sideslip rotating mode, the problem that the space is narrow is solved, and a user can stand more conveniently.

This invention provides a portable air conditioner integrating drying and preservation, relating to the field of air conditioning technology, and designed to solve the problem of low energy utilization in portable air conditioners. The portable air conditioner includes a housing, within which are a first heat exchange chamber, a second heat exchange chamber, and a storage chamber. The housing has a first air inlet, a second air inlet, and an air outlet. Both the first air inlet and the air outlet are connected to the first heat exchange chamber, which houses a first heat exchanger and a first fan. The second air inlet is connected to the second heat exchange chamber, which is also connected to the storage chamber via the air outlet. The second heat exchange chamber is isolated from the first heat exchange chamber and houses a second heat exchanger and a second fan. The storage chamber also has an exhaust port configured to connect to an exhaust pipe. This invention can fully utilize waste heat or waste cold energy generated during the cooling or heating process of a space, thereby achieving efficient resource utilization and reducing energy consumption.

The invention discloses a relay control method based on temperature induction. The relay control method comprises the following steps: acquiring electrical equipment protected by a relay to obtain a current current value; obtaining a current-time limit mapping relation; determining an initial countdown time limit corresponding to the current current value based on the current current value and a current-time limit mapping relation; acquiring the current working temperature of the relay to obtain a current temperature value; calculating a final countdown time limit based on the current temperature value and the initial countdown limit; and controlling the relay to trip based on the final countdown time limit. Therefore, the inverse time limit characteristic and the temperature protection are organically combined, more accurate, reasonable and efficient overcurrent protection can be carried out, and the adaptability of the system to a complex operation environment is enhanced.

The utility model relates to a take-up track transfer type pile line split air mobile charging robot system, which comprises an air track, a walking module, a movable charger, a winding gun line module, a charger side butt joint module, a winding side butt joint module, a power taking module, a charging call response system and a control processing unit, the movable charger can move along the aerial track and change the track and steer under the driving of the walking module, a winding gun line module is arranged beside each parking space, the movable charger can achieve the purpose that any parking space can be in electrical butt joint with the winding gun line module, and therefore the charging service can be provided for an electric automobile below the movable charger. The utility model relates to the field of new energy vehicle charging, eliminates the one-to-one binding relationship between a movable charger and a charging gun line, greatly improves the utilization rate of charging resources, supports reservation charging and queuing charging, can take back the charging gun line after a user pulls out a gun, and is more convenient, more efficient, cleaner and safer.

This application relates to the field of automotive mold manufacturing technology, and in particular to a mold cleaning device, including a housing, a protective mechanism, a drive mechanism, and a cleaning gun placement mechanism. The housing consists of a base, an outer cover fixedly mounted on the upper surface of the base, and a front opening on the front of the outer cover and a top opening on the top of the outer cover. The protective mechanism consists of a front protective component located at the front opening and a top protective component located at the top opening. The front protective component includes a groove on the inner wall of the outer cover, and a left protective door and a right protective door that slide and engage with the inner wall of the groove via rollers. The mold cleaning device described in this application employs a linkage design between the left and right protective doors and a foldable top plate, synchronously controlled by the drive mechanism, to automatically open and close the openings during mold loading and unloading, effectively isolating high-pressure fluid splashing and diffusion.

The application relates to the technical field of equipment installation, and particularly discloses a pit edge mounting base and a construction method, which comprises a pre-buried plate, the pre-buried plate is installed on the bottom of the inner wall of a pouring groove arranged at the edge of a pit body, a supporting piece is fixedly installed on the pre-buried plate, a guard angle steel is installed on the top of the supporting piece, the top of the guard angle steel is flush with the top of the pouring groove, an angle steel supporting lug is fixedly connected to the side of the guard angle steel close to the pit, a gap is formed between the upper surface of the angle steel supporting lug and the upper surface of the guard angle steel, and the gap is used for mounting a pit cover plate; the pre-buried plate is used for connecting the structure of the pit foundation, the top of the pre-buried plate is provided with a civil engineering formwork during the civil engineering process, so that the pre-buried plate can be effectively leveled through the civil engineering formwork; and the pre-buried plate is arranged in a plane, after pouring the foundation, no protrusion is formed, and compared with the inclined steel bar used as the pre-buried piece, the safety hidden danger of tripping the installation personnel is eliminated.

The utility model relates to a transmission structure of a wet-type rod mill. The transmission structure comprises an output motor, a coupler, a pinion device, a bull gear and a barrel body, flanges are arranged at the two axial ends of the barrel, and the large gear is installed at the axial inner end of the flange on one side. The output motor is a permanent magnet motor and is installed on a motor base on the side of the barrel, the coupler is an elastic pin coupler, an output shaft of the permanent magnet motor is connected with the small gear device through the elastic pin coupler, the small gear device at least comprises a small gear meshed with the large gear, and the small gear is meshed with the large gear. The permanent magnet motor can drive the small gear to rotate to drive the large gear and the barrel to rotate. The permanent magnet motor and the elastic pin coupling are adopted to provide torque to drive the rod mill barrel to rotate, power consumption is remarkably reduced, high-inertia load generated when the rod mill is started is easily overcome, impact load and instantaneous vibration of the rod mill barrel are absorbed through the elastic pin coupling, a motor shaft and a transmission system are protected, and the service life of the rod mill is prolonged. The motor bearing life is prolonged.

The application discloses an offshore oilfield island power grid control method and system. The method establishes a master-slave power supply strong coupling model, dynamically corrects the available capacity of a waste heat generator set, implements a three-level reverse power defense strategy based on the load margin of a main power supply, actively performs power limiting or off-grid control on wind power under a low-load working condition to guarantee the safety of the main power supply. The core of the application is to perform wind-fire-storage collaborative control based on the thermal inertia of waste heat, utilize an energy storage device to perform fast bidirectional power compensation, effectively fill the time difference between the adjustment action of a gas turbine and the response lag of a waste heat unit, realize system power suppression under the premise of avoiding load shedding, and simultaneously adopt a periodic rolling pre-computation mechanism to process faults. The application effectively solves the thermal response lag and reverse power risk problems under multi-energy coupling, and significantly guarantees the operation stability of an island power grid.

The utility model relates to the technical field of household articles, specifically disclose a kind of outdoor basket of being convenient for assembly, including basket body, the upper portion of basket body is provided with support mechanism, basket body includes two handrails, the lower end of the side of handrail is provided with multiple linear array distribution's sit pole, the side of sit pole is provided with multiple back pole, the upper portion middle part of handrail is provided with first connecting seat, support mechanism includes two second connecting seat, the upper end both sides of two second connecting seat are provided with connecting shaft, first hanging pole is arranged between two second connecting seat, second connecting seat is provided with second hanging pole in the end away from first hanging pole, the end of second hanging pole away from second connecting seat is provided with support seat, the both ends of support seat are rotatably connected with support rod, the side of support rod away from basket body is provided with connecting rod, the basket can avoid user being tripped by the component in support mechanism, ensure the safety of the basket use and the use experience of user.

This invention discloses a five-dimensional lens adjustment device and its usage method for a vertical laser interferometer, relating to the field of optical instrument technology. The device includes a base assembly and a laser interferometer, a three-dimensional translational large-span adjustment layer, a two-dimensional attitude micro-step adjustment layer, and a control module. The control module is configured to execute a two-way collaborative closed-loop adjustment strategy: preprocessing the interferogram frames acquired by the laser interferometer and extracting the central field-of-view feature parameters, evaluating the fringe contrast and zero-position offset; after the three-dimensional translational large-span adjustment is completed, initiating the pitch and yaw two-dimensional attitude micro-step adjustment, reusing the same feature calculation results from the first stage, and using zero-position offset feedback to compensate for the previous accumulated drift. The device of this invention adopts a hierarchical architecture of a three-dimensional translational large-span adjustment layer and a two-dimensional attitude micro-step adjustment layer. The functions of the two layers are decoupled and clearly divided, reducing the complexity of the control system and improving the efficiency and accuracy of lens adjustment.

The application discloses an oscillation suppression method based on control bandwidth switching, which is applied to one or more voltage source converters of a flexible direct current power transmission system, frequency switching set value Fset is determined according to converter impedance characteristics of a first set of low control bandwidth parameters and a second set of high control bandwidth parameters, it is judged whether the oscillation frequency F of the current operation mode is greater than the frequency switching set value Fset, if yes, the controller of the converter is set to the low control bandwidth parameters, otherwise, the controller of the converter is set to the high control bandwidth parameters. By using the oscillation suppression method, the converter presents positive resistance near the oscillation frequency, additional equipment is not needed, and tripping caused by oscillation can be avoided.

The utility model relates to connecting assembly and electronic equipment, wherein connecting assembly is applied to between first component and second component of assembly connection, and connecting assembly includes slide buckle connecting component, and slide buckle connecting component includes the card slot for forming in the side of first component towards second component, and the buckle part for connecting in the side of second component towards first component, the buckle part is configured to move after inserting corresponding card slot to be clamped in the card slot, the buckle part includes front end and back end, the front end is the front one end of buckle part along the direction of interlocking movement, and the back end is the rear one end of buckle part along the direction of interlocking movement, under the assembly in place state, the line direction of front end and back end is configured with the length direction of first component or second component and presents a angle of not equal to 90 degrees. This connecting assembly can reliably connect first component and second component together, and effectively reduces the probability of separation after the whole drop of first component and second component assembly.

The utility model relates to engineering equipment technical field, concretely is a kind of girder mobile trolley based on battery power supply drive, including frame, charging module and a plurality of interval arrangement's drive mechanism, frame is made of several mutually connected assembly type vehicle body;Charging module is installed on frame, including charging port and charging battery, charging port is electrically connected with charging battery, every drive mechanism includes the drive wheel of installation in the bottom of frame, the drive motor of transmission connection with drive wheel and the driver of electric connection with drive motor, charging battery is electrically connected with corresponding drive motor by driver.The girder mobile trolley provided by the utility model is powered by charging battery, does not need very long cable to power supply, avoids the accident, such as stumbling work personnel or damaging other equipment when girder mobile trolley moves, because cable is too long.

This invention discloses a screw fracture prevention method based on vibration testing of wall-mounted products, comprising: selecting screws that meet predetermined standards; using an accelerometer to monitor the vibration value at the installation point of the wall-mounted equipment in real time; adjusting the input control of the test bench; conducting a pre-test before the formal test, and then tightening the screws a second time after the pre-test; during the formal test, monitoring the root mean square value of acceleration or the peak value of the time-domain signal at the equipment installation point in real time, judging the screw fracture risk based on the root mean square value of acceleration or the peak value of the time-domain signal, and terminating the test when a fracture risk is detected. By adjusting the input control of the test bench, the vibration input level is controlled to prevent overtesting, reducing the risk of screw fracture due to vibration overload from the source. Pre-testing and secondary tightening eliminate preload loss, reduce the risk of stress concentration, and improve the uniformity and stability of preload. This achieves early warning of fracture risk, gaining time for downtime and loss mitigation.

This utility model relates to the field of power transmission and distribution technology, specifically a support component and a novel artificial bird nest for power transmission and distribution lines. The component includes a support ring; a support base located directly below the support ring, with the outer diameter of the support base being smaller than the diameter of the support ring; and a connecting rod located between the support ring and the support base, with its upper end connected to the support ring and its lower end positioned on the support base. This utility model can be installed on power transmission lines to install and support bird nests, facilitating the guidance of birds away from the power line conductor attachment points to stop and rest, thus preventing short circuits and tripping of the power lines.

The utility model belongs to the technical field of door fence processing and production, and discloses an intelligent door fence which comprises a door fence frame provided with a diffuse reflection sensor used for recognizing the door opening direction. The door fence body swings relative to the door fence frame to be opened and closed; the motor is arranged at the hinged position of the door fence frame and the door fence body, is electrically connected with the diffuse reflection sensor and rotates forwards or backwards according to signals of the diffuse reflection sensor; the door blocking structure is arranged on the door fence door body and corresponds to the diffuse reflection sensor in position; the door blocking structure comprises a door blocking sleeve connected with the door fence body, two opposite surfaces of the door blocking sleeve are provided with blocking strips, the two blocking strips are connected through a rotating shaft, and only one side of the blocking strips on the two sides is close to the diffuse reflection sensor. The diffuse reflection sensor senses the barrier strip and transmits a signal to the motor, the motor is controlled to rotate forwards or reversely, and the door opening direction is controlled. The diffuse reflection sensor is matched with the door blocking structure, the door opening direction is controlled, and the bidirectional door opening function is achieved.

This utility model discloses a speed-coupling device and its installation structure, including a speed-coupling swing arm and a power mechanism. One end of the speed-coupling swing arm is fixed to the power output end of the power mechanism, and the other end of the speed-coupling swing arm is fixed with a bonding plate. The speed-coupling swing arm can be driven by the power mechanism to rotate one end, causing the bonding plate to fit against the end face of the freight car, so that the uncoupling robot trolley moves at the same speed as the freight car under the push of the freight car. The speed-coupling device designed in this utility model can be applied to the uncoupling operation of freight car uncoupling robots, enabling the freight car uncoupling robot to move at the same speed as the railway freight car while the two are relatively stationary, providing a foundation for subsequent uncoupling operations of freight car uncoupling robots.

This invention relates to the field of big data remote control technology, and discloses a high- and low-voltage switchgear monitoring platform and method, comprising: configuring a preset forward-looking window and sampling interval, registering system parameters and controllable load branch parameters, using a load prediction model to predict the switchgear operating data, establishing a charging power curve based on the discharge state, capacity, and target recovery time of energy storage equipment, and calculating the power supply margin based on the rated power of the power supply equipment, thereby obtaining the conflict accumulation. The system compares the conflict accumulation with a safety threshold to determine whether there is a conflict gap that needs to be eliminated; then, for each controllable load branch, it calculates the reduction contribution and unit priority contribution efficiency, and selects the optimal set of operations based on the contribution efficiency to ensure that the total reduction meets the conflict gap requirements. Finally, combining the conflict start time and system delay parameters, it generates and issues operation commands to realize intelligent control of the load branches.

This utility model discloses a conventional hydrogen-cooled generator dual-flow-ring sealing oil pressure stabilization system, including a gas turbine generator and a hydrogen-side oil tank. The gas turbine generator has an excitation end and a steam end at its two ends, and sealing tiles are installed at the connection points between the excitation end and the steam end and the gas turbine generator. An accumulator and a check valve are installed on the air-side sealing oil header. Through the cooperation of the accumulator and the check valve, the pressure self-holding time during a brief pressure loss of the air-side sealing oil system is extended to more than 3 seconds. When the pressure of the air-side sealing oil header suddenly rises, the accumulator can relieve the pressure and avoid excessive oil-hydrogen pressure difference. When the original operating pump is shut down, the header flow rate is instantly halved and the pressure drops, the accumulator automatically releases the stored sealing oil to maintain the header pressure stability until the oil-hydrogen pressure difference regulating valve completes the adjustment, ensuring that the oil-hydrogen pressure difference is basically maintained at about 84 kPa. This avoids unit tripping caused by excessive pressure fluctuations, ensures the long-term stable and safe operation of the generator set, and significantly improves the economic benefits of the power plant.

This utility model belongs to the field of vehicle parts technology, and provides a sealing strip snap-fit ​​structure and a vehicle. The snap-fit ​​structure includes: a structure for snapping a sealing strip onto a vehicle drain trough, forming a seal between the vehicle drain trough and the inner sheet metal of the hood. The snap-fit ​​structure includes: a first snap-fit ​​part, with multiple first snap-fit ​​parts spaced apart on the sealing strip; and a second snap-fit ​​part, with a second snap-fit ​​part on the drain trough corresponding to the first snap-fit ​​parts, and the first snap-fit ​​parts and the second snap-fit ​​parts are movably snap-fitted together. Compared with the prior art, this utility model solves the problems of increased cost and complex assembly caused by the need for additional components in traditional snap-fit ​​installation by setting elastically deformable first snap-fit ​​parts and / or second snap-fit ​​parts between the sealing strip and the vehicle drain trough, and achieving a movable snap-fit, while avoiding the defects of high mold cost, complex process, and poor adaptability in two-color injection molding.

The utility model discloses a quick mount nut and wall surface quick mount support, quick mount nut is equipped with the C shape screw hole that can with screw rod screw, the size of the opening of C shape screw hole is slightly less than the diameter of screw rod, and the screw rod can forcibly pass through the opening of C shape screw hole and enter or exit C shape screw hole, and quick mount nut is equipped with the hole for giving place, the hole for giving place is linked together with the opening of C shape screw hole, and the outside wall of quick mount nut is closed in the circumference, and quick mount nut can hang on screw rod through the hole for giving place, and the hole for giving place and screw rod gap fit. Quick mount nut adopts C shape screw hole to realize and screw rod quick mount cooperation, and the outside wall is closed in the circumference and has the similar appearance with ordinary nut simultaneously, can limit the opening deformation of C shape screw hole and expand, can effectively prevent the nut from expanding deformation and bolt tripping when tightening.

The utility model discloses a kind of cylinder door structure of wind generating set and wind generating set, it is related to wind power generation technical field, wherein, the cylinder door structure of wind generating set includes door frame, cylinder door, drainage assembly;Door frame is installed on the tower tube of wind generating set, door hole is formed in door frame, the side of door frame close to door hole is formed with water guide groove and is provided with first sealing assembly, water guide groove and sealing assembly are sequentially arranged along the direction of inside tower tube to outside tower tube, and water guide groove is arranged in the bottom frame of door frame, and rainwater grate is arranged at the slot of water guide groove;Cylinder door is set in door hole, and one end of cylinder door is hinged in one side frame of door frame, the outer edge of cylinder door is provided with second sealing assembly, and first sealing assembly and second sealing assembly are sealingly cooperated;Drainage assembly includes drain pipe, and drain pipe is communicated with water guide groove.The cylinder door structure of wind generating set provided by the utility model can effectively avoid rainwater to infiltrate into tower tube, and ensure the dryness inside tower tube.

The utility model relates to tobacco leaf transportation technical field discloses an unmanned plane transportation tobacco leaf automatic tripping device, including transportation unmanned plane, the bottom left side of transportation unmanned plane is fixedly connected with the supporting leg, the bottom of supporting leg is provided with the lifting rope, the bottom fixedly connected with tripping mechanism of lifting rope, the outer wall of two supporting legs is provided with mounting mechanism, mounting mechanism is used to install tripping mechanism, tripping mechanism includes the transverse board, the top fixedly connected in the bottom of lifting rope of transverse board, the bottom left end fixedly connected with U -shaped frame of transverse board. In the utility model, the moving groove of transverse board is slid along the moving block and drives the baffle to adjust the position, the plug -in block inserts the insertion hole and fixes the moving block, the telescopic link pushes and removes the moving block when tripping, the moving block removes the location of hollow plate no.

The application belongs to the technical field of flexible direct current power transmission, and particularly discloses a back-to-back flexible direct current system site selection method considering stability and risk, which comprises the following steps: first, a cross-voltage level power grid power flow and device model containing a back-to-back flexible direct current power transmission system BTB is established; then, a node frequency dynamic response model containing inertia characteristics is established; a risk modeling and adaptive control model considering new energy output uncertainty and power flow constraints is constructed; a multi-objective optimization model considering cost, loss, dynamic stability, minimum frequency value and risk level is established; finally, a Pareto optimal solution set is solved by a multi-objective evolutionary algorithm, and a site selection result is output. The back-to-back flexible direct current system site selection method considering stability and risk is adopted, intelligent site selection and capacity configuration of the cross-voltage level BTB flexible direct current device are realized, and the voltage stability, frequency stability and risk robustness of the power grid under the condition of high proportion of new energy are improved.

This utility model belongs to the field of chemical filling technology, specifically disclosing a chemical liquid filling anti-loosening device, including an input pipe and an output pipe connected by a connector; one end of the connector is threaded to the input pipe, and the outer surface of the other end is connected to a locking pin by a pin. The locking pin has an arc-shaped pin head and a pin rod, with the arc-shaped pin head located inside the connector to press the output pipe; a limiting sleeve is fitted on the input pipe, and the limiting sleeve has a groove that mates with the pin rod. A locking nut is also provided on the side of the limiting sleeve away from the connector, and the locking nut is threaded to the input pipe. By tightening it, the limiting sleeve is pushed to press the pin rod. Through the primary locking of the locking pin and the groove on the limiting sleeve, and the secondary locking of the locking nut and the limiting sleeve, the output pipe and the connector are firmly coupled, significantly reducing the impact of vibration and instantaneous impact on the connection. At the same time, the axial compression of the limiting sleeve and the locking nut can resist the lateral impact of forklifts, loading arms, and personnel on site, improving the overall safety of chemical liquid filling operations.

The invention discloses a butterfly centrifugal pump self-control valve and a control method, and aims to solve the problem that an existing water pump control valve fails due to blockage of liquid impurities in a pipe network. The self-control valve comprises a valve body, a butterfly plate, a valve rod, a hydraulic cylinder and the like, the hydraulic cylinder comprises a piston cylinder, a piston and a cylinder seat with a quick / adjusting channel, and the adjusting channel is matched with an adjusting screw; purified water or oil is adopted as an independent hydraulic driving medium, and impurity blockage is avoided. When the valve is opened, water pressure of the water pump pushes the butterfly plate to rotate, and the piston firstly cuts off the quick channel to realize light-load pump starting and then communicates with the channel to fully open the butterfly plate; when the valve is closed, backflow water and gravitational torque of the butterfly plate drive the piston to move downwards, a rapid channel is cut off in the later period to reduce water hammers, and backflow is prevented after full closing. The device is simple in structure, low in cost, high in reliability, adaptive to an outlet of the centrifugal pump and capable of avoiding pump starting tripping and water hammer accidents.

The utility model relates to the technical field of noise control, in particular to a noise insulation screen for noise control in industrial production. Comprising a fixed frame, a sound insulation plate and a moving mechanism, the moving mechanism comprises a threaded sleeve, a screw rod, a mounting disc, universal mute wheels and a silencing device, deep sound insulation treatment is conducted through the sound insulation plate, primary silencing treatment is conducted through the silencing device, and the noise treatment effect is improved; then, when the equipment is fixed through a bolt, a screw rod is rotated to drive a mounting disc to move upwards, so that the universal mute wheel is accommodated in a first mounting cavity, and then, the universal mute wheel is mounted and fixed through matching of a mounting hole in the bottom of the fixing frame and the bolt; and after the equipment is installed, the moving mechanism is stored, so that people are prevented from being stumbled when passing by, and the use safety can be improved when noise control is carried out.