160results about How to "Open smoothly" patented technology

The invention discloses a battery pack, and relates to the technical field of batteries. In the battery pack, a battery module comprises a battery cell, an anti-explosion valve is arranged on one side, in the Z direction, of the battery cell, and an insulating stop block shields one side of the anti-explosion valve and is provided with a pressure relief through hole; the first liquid cooling plate is arranged on one side of the battery module and the insulating stop block, a pressure relief channel is arranged between the first liquid cooling plate and the insulating stop block, and the explosion-proof valve can exhaust air to the pressure relief channel through the pressure relief through hole; the space between the first liquid cooling plate and the battery module is filled with a plurality of first layers of heat-conducting structural adhesives which are arranged at intervals in the Y direction, and the first layers of heat-conducting structural adhesives cover the outer surfaces of the insulating check blocks in the Y direction. As the insulating stop block is added, the explosion-proof valve at the top of the battery cell can be shielded, the first layer of heat-conducting structural adhesive is prevented from shielding the explosion-proof valve, and the explosion-proof valve can be smoothly opened when the battery cell is in thermal runaway and is exhausted through the pressure relief through hole to relieve pressure. As the space is directly reserved between the first liquid cooling plate and the insulating stop block for exhausting, the pressure relief space is sufficient, and pressure can be relieved to a set area.

A game bed capable of being unfolded more stably comprises four supporting rod structures, two long folding surrounding rod structures, two short folding surrounding rod structures and a folding base, the long folding surrounding rod structures are arranged between the tops of the two left-right adjacent supporting rod structures, and the short folding surrounding rod structures are arranged between the tops of the two front-back adjacent supporting rod structures; the folding base comprises a base plate, a guide seat and four base plate pipes, a guide pipe is arranged at the bottom of the base plate, a guide sleeve is arranged at the top of the guide seat, the guide pipe penetrates through the guide sleeve and the guide seat and can ascend and descend along the guide sleeve, and each base plate pipe corresponds to one supporting rod structure. One end of each base plate pipe is hinged to the bottom of the supporting rod structure, the other end of each base plate pipe is hinged to the base plate, four first rod grooves are formed in the periphery of the guide seat, and each first rod groove corresponds to one base plate pipe. The first rod groove can play a role in guiding unfolding of the chassis pipe, so that the game bed is more stable when being unfolded.

The invention relates to a folding house with an aluminum alloy frame structure, and belongs to the technical field of buildings. The invention relates to a multi-functional greenhouse which comprises a supporting mechanism, a bottom mechanism, a roof mechanism, a side face mechanism, a gable mechanism and a connecting mechanism, the supporting mechanism comprises a bottom supporting piece, a stand column piece and a top supporting piece, the lower end of the stand column piece is connected with the bottom supporting piece, and the upper end of the stand column piece is connected with the top supporting piece; the upper end of the side face mechanism is slidably connected with the roof mechanism, the lower end of the side face mechanism is slidably connected with the bottom mechanism, the two gable wall mechanisms are connected and hinged to the two ends of the stand column piece respectively, and the bottom mechanism and the bottom supporting piece, the roof mechanism and the top supporting piece and the gable wall mechanisms and the stand column piece are hinged through connecting mechanisms. The container house has the effect that the problems that a container house is heavy and not easy to disassemble and assemble are solved.

The invention discloses a method for opening and closing a radial gate through a hydraulic hoist and an opening and closing system thereof.The opening and closing system for opening and closing the radial gate through the hydraulic hoist comprises a pre-buried gate table, a mounting side table and the radial gate. The bottom of the radial gate is supported by buoyancy of a water body, the buoyancy of the water body assists the rotating shaft part to smoothly lift the radial gate from the water body, when the radial gate is gradually separated from the water body, water in the water storage cavity in the buoyancy box can be rapidly discharged through the air inlet valve pipe, and when the radial gate is inserted into the water body, the radial gate is subjected to pressure from the water body; in order to influence the closing of the radial gate by pressure, due to the support of the buffer spring piece, the power-assisted wheel part mounted on one side of the buffer spring piece can abut against one side of the radial gate, so that the influence of the pressure on one side of the radial gate is reduced, and the smooth resetting of the radial gate in the closing process is ensured.

A cooking utensil with a retaining structure, the cooking utensil comprising a pot base, an inner pot placed on the pot base and a pot cover hingedly connected to the rear end of the pot base in a flip manner, the inner pot having a rigid pot rim protruding outward, the pot cover comprising an outer cover and a rigid member installed under the outer cover, the pot cover being used to cover the pot mouth of the inner pot based on a lid closing action; the characteristic is that a locking mechanism is arranged on the outer cover, the locking mechanism comprises at least one pair of support frames slidably arranged on the outer cover, the support frames are provided with at least one rigid clamp with a clamping mouth, the rigid clamp is used to clamp the rigid member and the rigid pot rim of the inner pot; and the cooking utensil also comprises an intermediate transition arm body movably arranged on the outer cover, when the intermediate transition arm body moves in the forward direction, it can drive the support frame to move toward the outer side of the outer cover so as to allow the rigid clamp to separate from the rigid member and the rigid pot rim of the inner pot to achieve unlocking, and when moving in the reverse direction, it allows the support frame to move toward the center direction of the outer cover so as to achieve locking.

The optical detector protection device comprises a supporting assembly, a control assembly, a protection assembly and a movement assembly, parts in the supporting assembly are connected and fixed through threads, and the protection assembly is fixed to the positions corresponding to the parts in the supporting assembly through screws and bolts. The control assembly and the movement assembly are fixed to the supporting assembly. According to the utility model, the control assembly controls the motion assembly to drive the shielding plate in the protection assembly to move, so that the shielding plate in the protection assembly can be rapidly and stably opened when the detector is used, the experiment progress is accelerated, the complex process is reduced, and the detection surface of the detector is protected from being influenced and damaged by external factors when the detector is not used. Meanwhile, the detector protection device has the advantages of quick and efficient response, simple operation, convenient installation mode and small occupied experiment space.

The invention provides a push-pull type double-layer cigarette packaging box and an opening and closing method thereof. The packaging box comprises a lower shell (1), an upper shell (2), an inner box (3), a lower-layer inner box (4), a partition plate (35), a U-shaped cutting opening (200), a cutting buckle (210) and a connecting part (5). The inner space of the packaging box is divided into an upper layer and a lower layer through the partition plate (35), and cigarettes with different tastes can be stored in the upper layer and the lower layer respectively. The packaging box can be opened and closed easily by pulling up or pushing down the upper shell (2). The connecting part (5) is matched with the U-shaped cutting opening (200) of the lower-layer inner box (4), and it is ensured that the packaging box is opened and closed stably. In the push-pull process of the upper shell (2), the cutting buckle (210) is clamped on one side of the upper portion of the hollowed-out area (100) on the lower portion of the partition plate (35), and the limiting effect is achieved. The packaging box provided by the invention meets the diversified requirements of consumers on cigarette tastes, improves the user experience, is simple in opening process and is very suitable for industrial production.

The invention discloses a steel heat-insulation fireproof door in the field of fireproof doors, which comprises a mounting frame and a door frame connected to the side surface of the mounting frame, a rotating bracket connected to the side surface of the door frame, a rotating shaft rotatably connected to the rotating bracket, a transmission gear connected to the top of the rotating shaft, a connecting piece connected to the side surface of the rotating shaft, and a rotating door connected to the other end of the connecting piece, according to the device, the unlocking stability of the fireproof door in the high-temperature environment can be effectively improved, the influence of high temperature on the fireproof door can be avoided by adopting a sliding unlocking mode, meanwhile, the use of a lock head of a rotating structure is avoided, the safety of the fireproof door is improved, and the service life of the fireproof door is prolonged. Therefore, the risk of failure of the device is reduced.

The invention discloses a method, device and equipment for avoiding engine flameout and a storage medium, and the method comprises the steps that the clamping stagnation state of a mixing valve is judged according to the current target opening degree and the actual opening degree; according to the clamping stagnation state of the mixing valve, PID control calculation is conducted on the opening degree error between the current target opening degree and the actual opening degree; and when it is judged that the mixing valve is opened in the stable clamping stagnation state, an integral item of PID control over the opening degree error is reset so as to avoid engine flameout. The method aims at solving the problems that in the prior art, due to the fact that a mixing valve of a low-pressure EGR system forms duty ratio overshoot when the mixing valve is opened due to clamping stagnation, the mixing valve is fully closed, external air does not enter an air cylinder, and an engine flames out or shakes, the method can effectively recognize that the mixing valve enters the clamping stagnation opening state from the clamping stagnation state, and the working efficiency of the low-pressure EGR system is improved. PID control adjustment is carried out on the mixing valve, and the problems of engine flameout and jittering caused by overshoot of the mixing valve are solved.

The invention discloses a fuel cell hydrogen subsystem control method, equipment and a medium, belongs to the technical field of fuel cells, and is used for solving the problems of complex pipeline, large temperature difference between air and hydrogen, high internal friction, high cost and the like of an existing thermal management system and the technical problem of low operation efficiency caused by no high-precision regulation based on environmental change. The method comprises the following steps: performing intercooler-based flow direction control on cooling liquid in a gas-water separator and stack cooling liquid through a self-adaptive fuzzy PID (Proportion Integration Differentiation) controller to obtain a first cooling liquid flow direction control strategy; performing flow direction control on the cooling liquid in the gas-water separator and the stack cooling liquid based on the thermal management system to obtain a second cooling liquid flow direction control strategy; and according to a temperature feedback regulation control algorithm and based on a three-way valve, valve opening shunting control of the cooling liquid is carried out between the cooling liquid in the gas-water separator and the stack cooling liquid, and a third cooling liquid flow direction control strategy is obtained.

The invention discloses a high-temperature-resistant, low-smoke, halogen-free, flame-retardant and fire-resistant polyolefin cable, relates to the technical field of cables, and aims to solve the problems that a cable core twisting or welding mode is often adopted for connection of a traditional polyolefin cable in the prior art, operation is troublesome, time and labor are consumed, cable core connection of the cable cannot be conveniently carried out, and practicability is poor. The cable body comprises a cable core and a functional sleeve, the cable core comprises a wire core and an inner sheath, the wire core comprises a conductor, an inner shielding layer, an inner insulating layer and a wire core protection sleeve, one side of the cable body is provided with a connecting piece, the connecting piece is composed of a connecting column and a winding layer, the two sides of the connecting column are symmetrically provided with jacks respectively, and the winding layer is arranged in the cable body. A plurality of connecting holes are formed in the connecting column, the two ends of each connecting hole are communicated with the two inserting holes respectively, a lower conductive plate is fixedly installed on the lower portion of the interior of the connecting hole of the connecting column, a conductive block is fixedly installed in the middle of the upper portion of the lower conductive plate, and an upper conductive plate is arranged above the conductive block.

The invention discloses an automatic filling machine and a filling method thereof, and aims to provide an automatic steel cylinder filling machine and a filling method which can automatically and accurately position the orientation of a valve nozzle of a steel cylinder angle valve and a gun nozzle of a filling gun and can realize automatic gun feeding. Comprising a rack, an executing mechanism, a freely rotating steel cylinder tray mounted on a base, a first cylinder clamping device for fixing a steel cylinder, a second cylinder clamping device for aligning the position of the steel cylinder and assisting in adjusting the direction of a valve nozzle of an angle valve, and a control system, the executing mechanism comprises a buffering air cylinder, a lifting air cylinder, an angle valve automatic opening and closing unit, a guiding pressing head, a guiding pressing head driving air cylinder, a filling gun and a filling gun driving air cylinder. The buffering air cylinder is connected with the angle valve automatic opening and closing unit, and the control system controls the executing mechanism, the first bottle clamping device and the second bottle clamping device to act cooperatively. According to the filling machine and the filling method, the orientation of the valve nozzle of the steel cylinder angle valve and the gun nozzle of the filling gun can be automatically and accurately positioned, filling automation is achieved, the labor intensity is reduced, and the filling efficiency is improved.

The utility model discloses a green plant spraying device which comprises a communicating pipe, the communicating pipe is installed on external equipment, an adjusting mechanism is arranged on the communicating pipe, the adjusting mechanism comprises a water spraying mechanism, a pressure adjusting pipe, a water inlet pipe, a sealing mechanism, a threaded pipe, an inner pipe, a follow-up rod, a pressing sleeve and a push spring, the water spraying mechanism is installed on the communicating pipe, and the pressure adjusting pipe is installed on the communicating pipe. The pressure adjusting pipe is installed on the communicating pipe, one end of the water inlet pipe is connected to the water inlet equipment, the other end of the water inlet pipe is connected to the pressure adjusting pipe, the sealing mechanism is installed on the pressure adjusting pipe, and the design of the adjusting mechanism enables a user to flexibly adjust the flow speed and pressure of water flow according to the requirements of green plants. According to the design, the opening degree of the one-way disc can be automatically adjusted according to the water flow speed under the action of the spring, damage to plants caused by too large water flow is avoided, and through the adjusting mechanism, it is guaranteed that the greening plants obtain a proper amount of water, and waste of resources is avoided.

The utility model belongs to the technical field of spraying disinfection of sterilization cabinets, and particularly relates to a sterilization cabinet with a spraying function, which comprises a spraying component, a protective shell component is mounted at the bottom of the spraying component, and an adjustable support plate component is mounted in the protective shell component; the spraying assembly comprises a pesticide storage tank, a motor is fixedly connected to the top of the pesticide storage tank, a connecting rod is fixedly connected to the top of the motor, a stirring rod is fixedly connected to the outer wall of the connecting rod, a connecting pipe is fixedly connected to the side of the pesticide storage tank, and a water pump is fixedly connected to the end of the connecting pipe. The side of the water pump is fixedly connected with a liquid outlet pipe, one side of the liquid outlet pipe is fixedly connected with a fixing clamp, and the other side of the liquid outlet pipe is in threaded connection with a spray head. Threaded connection has good sealing performance, liquid medicine can be prevented from leaking in the conveying process, the stability of liquid medicine spraying pressure is guaranteed, and then the spraying range and strength can be effectively controlled.

The utility model belongs to the technical field of coal coking equipment, and particularly relates to a carbonization chamber pressure regulating valve and a pressure regulating system.The carbonization chamber pressure regulating valve comprises a valve body and an executing mechanism, and the valve body comprises an inner cylinder, an outer cylinder, an upper port and a lower port; the inner cylinder and the outer cylinder are coaxially arranged and fixedly connected together through the upper port, the lower port is fixedly connected with the bottom end of the outer cylinder, the upper port, the outer cylinder and the lower port form a valve body shell, the upper port, the inner cylinder and the lower port form a valve body channel, and the valve body channel is communicated with the valve body shell. And a driving turning plate and a driven turning plate are arranged between the inner barrel and the outer barrel. The pressure regulating valve is favorable for solving the technical problems that the pressure regulating valve in the pressure regulation of the coking chamber of the existing domestic coke oven is relatively high in boundary dimension, is not convenient to install and apply, is not smooth to open and close, is easy to block and burn a driving part, and is low in control precision.

The application discloses a forming die of a rubber guide sleeve with a metal framework and a preparation method thereof. The forming die comprises an upper die, a middle die and a lower die. The upper die comprises an upper disc and a cylinder. The cylinder is provided with a positioning hole. The lower surface of the upper disc is provided with a chamfered upper cavity groove. The lower die comprises a lower disc, a circular table and a positioning boss. The upper surface of the circular table is provided with a chamfered lower cavity groove. The middle die is provided with a cavity hole in the center. When the die is closed, the positioning boss of the lower die is inserted into the positioning hole. The positioning boss is provided with a support ring which is provided with a recess forming pin. The outer wall of the cylinder is provided with a metal framework. The chamfered upper cavity groove, the outer wall of the cylinder, the outer side wall of the support ring, the chamfered lower cavity groove and the inner wall of the cavity hole form a forming cavity. After vulcanization of the product is completed, the forming pin is accurately positioned, the square recess around the inner diameter of the metal framework guide sleeve meets the design requirements, the die opening and the product demolding are smooth, the operation is simple, safe and reliable, and the manufacturing cost is low.

The invention discloses an ESD (Electro-Static Discharge) circuit and a chip. The ESD circuit comprises a primary discharge module and a secondary discharge module, a drain electrode of each discharge MOS tube is connected with a chip pin, a grid electrode is grounded through a corresponding first resistor, a source electrode is grounded, and a substrate electrode is connected with the bias signal providing unit; the first end of the secondary discharge module is connected with a chip pin, and the second end is connected with a chip internal circuit; the primary discharge module comprises at least one discharge MOS tube, a bias signal providing unit and first resistors corresponding to the discharge MOS tubes respectively; the first-stage discharge module is used for discharging electrostatic energy at the chip pins by connecting the discharge MOS tubes; the secondary discharge module is used for further discharging electrostatic energy at the chip pins; and the bias signal providing unit is used for providing a preset bias signal for each discharge MOS tube, so that each discharge MOS tube is in a weak conduction state when electrostatic energy passes through each discharge MOS tube. According to the invention, the electrostatic discharge capability can be enhanced from multiple aspects, so that the protection capability of related structures of the chip is improved.

The utility model discloses the structure of child and mother window of business car, it mainly applies to the rear window area of the car body of business car. The structure of child and mother window of business car contains a fixed window, and the fixed window is installed to the car body and forms an opening, the inner side end face mother frame of setting in the fixed window, and is equipped with the slide rail in the mother frame, a movable window frame, the movable window frame can be slidably configured in the slide rail, and a movable window, the movable window is installed in the movable window frame, when closing state, the movable window can close the opening, and with the outer surface of fixed window keeps the same plane, to ensure that the car body appearance integrity, and promote air tightness and sound insulation. Through this design, the utility model can effectively improve the inconvenience that the traditional business car rear window cannot open, provide the window structure of car appearance consistent, sound insulation, waterproof and ventilation demand.

The utility model relates to the technical field of cat litter basin, especially a cat litter collecting device. It comprises: a base, a driving part, a cat litter cylinder and a collecting assembly; the cat litter cylinder and the driving part are both installed on the base, and one end of the cat litter cylinder is connected with the driving part, and the other end of the cat litter cylinder is provided with an entrance for the cat to defecate in the working cavity of the cat litter cylinder; the collecting assembly is arranged on the cat litter cylinder and communicates with the working cavity, is used for fixing the garbage bag for collecting cat excrement, and the collecting assembly supports the bag opening of the garbage bag and guides the cat excrement into the garbage bag after driving the cat litter cylinder to rotate. The device not only easily fixes the garbage bag and reserves a moving space for the cover plate, but also improves the stability of the cover plate through counterweight improvement, improves the success rate of the garbage bag for collecting cat excrement, and has a simple structure and is easy to use.

The utility model discloses a gypsum mortar production device which comprises a supporting frame, the supporting frame is installed on external equipment, an unfolding mechanism is arranged on the supporting frame, the unfolding mechanism comprises a base, a crushing shell, a driving mechanism, a pressing plate, a rotating shaft, a fixing sleeve, an inserting rod, a follow-up frame, a lateral sleeve and an unfastening mechanism, the base is installed on the supporting frame, and the crushing shell is installed on the base. One end of the crushing shell is rotationally connected to the base, a pressing plate is installed at the other end of the crushing shell, the driving mechanism is installed on the supporting frame, the rotating shaft is rotationally connected to the supporting frame, the unfolding mechanism can achieve stable unfolding and fixing of the crushing shell, and the unfolding stability and safety are improved through the design of the base and the crushing shell. The design of a pressing plate and a rotating shaft ensures the flexibility and the high efficiency of unfolding, the design of an inserting rod, a follow-up frame, a lateral sleeve and an unfastening mechanism ensures the reliability and the convenience of an unfolding system, and the design improves the convenience of overhauling and cleaning.

The utility model relates to the field of electrolytic baths, in particular to a deformable steel grating device of an electrolytic bath, which comprises two main steel plates and a deformation component, a rigid hinge is mounted on one side of one of the main steel plates and used for connecting an operating surface of the electrolytic bath, and the deformation component comprises a sliding cross beam. Middle ridge beams are symmetrically installed at the top and the bottom of the sliding cross beam, arc-shaped steel coils are installed on the two sides of the middle ridge beams respectively, one ends of the arc-shaped steel coils are connected to one sides of main steel plates, the two main steel plates are installed on the two sides of the middle ridge beams, and the two main steel plates form an elastic structure through the arc-shaped steel coils and the middle ridge beams. The utility model solves the problem that the steel grating is easy to deform and cannot be opened.

The utility model discloses a computer case, a body is internally provided with a heat dissipation assembly, the heat dissipation assembly comprises front frames, a rear heat dissipation fan, a front heat dissipation fan, a front dust removal net, a rear dust removal net and a placement box, the front frames are installed at the two ends of the interior of the body, the rear heat dissipation fan is installed on the front frame on one side, and the front dust removal net is installed on the rear dust removal net on the other side. The front cooling fan is installed on the front frame on the other side, the front dust removal net is detachably installed on one side of the front cooling fan, the rear dust removal net is detachably installed on one side of the rear cooling fan, and the containing box is installed at the top end of the interior of the body. A switch assembly is arranged on the body, the switch assembly comprises a rotating shaft, a side cover plate and an inserting column, the rotating shaft is arranged on one side of the body, the side cover plate is connected with the rotating shaft, and the inserting column is installed on the side cover plate, so that the technical problem that the heat dissipation efficiency is low in the background technology is solved.

The detachable car roof assembly with the folding tent and the lifting top cover comprises connecting rod jacking mechanisms on the two sides, at least three sets of frame-shaped frameworks, tent cloth, the top cover and a base, the two sides of the bottom face of the top cover are installed on the two connecting rod jacking mechanisms, and the bottoms of the two connecting rod jacking mechanisms are installed on the two sides of the top face of the base; the connecting rod jacking mechanism comprises a fixed rod, a movable rod, a long rocker, a short rocker, a long connecting rod, a short connecting rod, a hook lock and an electric supporting rod, the lower ends of the long rocker and the short rocker are hinged to one end and the middle of the fixed rod respectively, and the upper ends of the long connecting rod and the short connecting rod are hinged to the two ends of the movable rod respectively; the middle of the hook lock is hinged to the upper end of the long rocker, the two sides of the frame-shaped framework are hinged to the connecting rod jacking mechanisms, the top face of the tent cloth is fixed to the top faces of the connecting rod jacking mechanisms, and the periphery of the tent cloth is fixed to the frame-shaped framework. The detachable roof is formed by combining the tent with the self-locking jacking mechanism and the frame-shaped framework, the application function of the detachable roof is expanded, and multifunctionality and convenience are achieved.

A lateral box opening and sealing device is provided with a frame type rack which is provided with a plurality of installation positions, and further comprises a box warehouse, a box opening and sealing device, a box opening and sealing device, a box opening and sealing device, a box opening and sealing device and a box opening and sealing device, the carton taking mechanism is arranged on the rack and is used for sucking the cartons stored in the carton warehouse; and the box opening mechanism is arranged on the rack and located on the lower side of the box taking mechanism. According to the technical scheme provided by the utility model, the opposite angles of the paper box are adsorbed, so that the paper box can be opened in an opposite angle pulling manner, the straight line cannot be subjected to extrusion force and cannot be deformed, and therefore, the paper box can be smoothly opened when the paper box becomes soft due to damp or is made of a thinner paper board, and the paper box can be conveniently opened. The probability of carton opening failure is reduced, and the carton opening reliability is improved.

The invention relates to an electric container roller shutter opening method and device, a medium and a product, and belongs to the technical field of automobiles. The method comprises the steps of obtaining an electric container roller shutter opening instruction; based on the electric container roller shutter opening instruction, a driving motor is controlled to execute a rotation action so as to open the electric container roller shutter; detecting the rotating speed of the driving motor; if the rotating speed of the driving motor is equal to zero, increasing the input power of the driving motor; repeatedly executing a rotating speed detection action and an input power increasing action; and when it is detected that the rotating speed of the driving motor is larger than zero, and the uninterrupted rotating time of the driving motor is equal to a time threshold value, opening of the electric container roller shutter clamped by sand and stone or frozen by ice is completed. According to the roller shutter opening device, the roller shutter clamped by gravel or frozen by ice can be opened.

The utility model provides a high-power LED light source driving circuit, which comprises a direct-current power supply, an LED driver, a charging control circuit, a current sampling resistor, a capacitor bank and a discharging control circuit, a direct-current power supply is input to the LED driver, and the LED driver is connected with the current sampling resistor and the capacitor bank in series. The capacitor bank is connected with the anode of the LED light source; the charging control circuit comprises a voltage division circuit I and a voltage comparator I, and the voltage division circuit I samples the voltage output by the LED driver; the voltage comparator I is connected with the LED driver; the LED driver judges whether the capacitor bank is charged or not; the discharge control circuit comprises a controller and a switching device, the switching device is connected to the controller, and the controller controls on and off of the switching device; when the switching device is switched on, the capacitor bank releases electricity to the light source, and the light source is turned on; large current is provided for the light source through energy storage of the capacitor bank, smooth starting of the large-power light source is guaranteed, and the problems of power consumption increase and transmission cable heating are avoided.

The utility model discloses a discharge port opening and closing valve for a metallurgy submerged arc furnace. The discharge port opening and closing valve comprises a receiving hopper assembly, a discharge pipe is arranged above the receiving hopper assembly, a flange is arranged at the bottom of the discharge pipe, and a door plate assembly is arranged below the receiving hopper assembly. The discharge port opening and closing valve for the metallurgical submerged arc furnace solves the problems that an existing discharge port opening and closing valve is prone to abrasion and unsmooth in opening and closing action.

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