23results about How to "Safe and reliable work" patented technology

This application discloses an automated cutting device for men's T-shirts, belonging to the field of garment equipment technology. It provides a highly efficient and consistent automated cutting device for men's T-shirts, including a cutting table and a feeding mechanism and a recycling mechanism that cooperate with the cutting table. The feeding mechanism is adapted to supply fabric to the cutting table, and the remaining fabric scraps after cutting are rolled up by the recycling mechanism. The cutting table includes a base, a support platform fixedly connected to the upper surface of the base, a lifting plate connected to the upper surface of the base via a first cylinder, a constraint plate fixedly connected to the lower surface of the lifting plate via a traction rod, and a cutting blade connected to the upper surface of the constraint plate via a second cylinder. The cutting blade includes a cutting blade. This application, by designing a support platform, a pressing plate, and a cutting blade with the same shape as a flat men's T-shirt, can quickly and accurately cut individual fabric pieces under the drive of the cylinder, improving cutting efficiency while ensuring the shape consistency of the individual fabric pieces.

The utility model discloses a spiral swinging hydraulic device capable of being mechanically locked at any angle, which comprises a cylinder barrel, a spiral output shaft, a front end cover, a rear end cover, a piston, a disc spring and a thrust ring, the spiral output shaft is arranged in the cylinder barrel, the two ends of the spiral output shaft penetrate through the front end cover and the rear end cover respectively, the spiral output shaft further penetrates through the piston, the thrust ring and the disc spring, the spiral output shaft is provided with a piston connecting part and a boss connecting part, and a piston protruding ring protruding outwards is arranged in the middle of the piston and is connected with the inner wall of the cylinder barrel in a sealed mode. The cylinder barrel is provided with a right-handed rotation oil inlet and a left-handed rotation oil inlet which are respectively communicated with the right-handed rotation oil inlet area and the left-handed rotation oil inlet area; the disc spring is arranged between the rear end cover and the thrust ring, and the thrust ring is movably connected with the cylinder barrel without rotation. In the using process, the gear shaft can be stably stopped at a certain position for a long time and can be effectively locked, and work is safe and reliable.

This invention pertains to the field of turbine bearing technology, proposing a bearing device with a common cavity structure, comprising: a first bearing housing and a second bearing housing arranged adjacent to each other, coaxially aligned. A first oil return structure is located at the bottom of the first bearing housing, and a second oil return structure is located at the bottom of the second bearing housing. Both the first and second oil return structures are connected to an external oil collection tank. The bottoms of the first and second bearing housings are connected, enabling communication between the first and second oil return structures. By designing the two bearing housings with a bottom-connected structure, the problem of poor oil return is effectively avoided. Regardless of which side of the two bearing housings is higher, the lubricating oil can quickly return to the oil collection tank, meeting the necessary lubrication conditions for normal bearing operation and thus ensuring the safe and reliable operation of the engine.

The utility model relates to the technical field of water pump drivers, in particular to a solar water pump driver capable of working at wide voltage, which is characterized by comprising a single chip microcomputer, a motor driving module and a DCDC power supply module, the DCDC power supply module is used for connecting a solar panel and receiving a wide voltage source VB +, the single chip microcomputer is connected with the motor driving module, and the motor driving module is connected with the motor driving module. The motor driving module is used for being connected with a water pump motor, a PWM pin of the single-chip microcomputer is connected with the voltage regulating circuit, the voltage regulating circuit obtains a wide voltage source VB + and provides a working voltage source VBUS, the working voltage source VBUS is provided for the motor driving module, and the single-chip microcomputer is further connected with the voltage sampling circuit. The two voltage sampling circuits are respectively connected with the voltage regulation circuit to respectively sample a wide voltage source VB + and a working voltage source VBUS. According to the utility model, the input and output voltages in the voltage regulation process are sampled in real time, and the voltage regulation circuit is utilized to regulate and configure the wide-range voltage of the solar panel, so that the beneficial effect of improving the working safety and reliability of a hardware circuit is achieved.

The utility model discloses a kind of mining explosion-proof follow-up low-voltage latch, belong to wire connection technical field, including clamping component, first tubular component, second tubular component and third tubular component connected in sequence;Clamping component is sequentially composed of small inner diameter tubular section, variable diameter tubular section and large inner diameter tubular section, annular pressing plate, sealing washer and fixedly arranged annular baffle are equipped in small inner diameter tubular section, annular pressing plate can extrude sealing washer and make its inner hole shrink by screwing back;Multiple electric conductive sockets are equipped in first tubular component along radial direction interval, and any adjacent electric conductive socket is filled with insulating material;Multiple electric conductive plugs are equipped in second tubular component along radial direction interval, and electric conductive plug includes plug rod arranged along front-back direction and plug quick connector arranged in the rear end of plug rod, and any adjacent electric conductive plug is filled with insulating material. Realize quick plug-in and breaking between power supply and electric equipment, and greatly improve the efficiency of wiring and breaking.

The utility model relates to the stamping field discloses a kind of lateral material pressing mechanism of stamping die. Including lateral material presser and elastic reset piece, the elastic reset piece is opposite with lateral material presser and is used to make lateral material presser reset, lateral material presser is located above positive material presser and is slidably matched with positive material presser, lateral material presser is equipped with inclined wedge upper baffle, inclined wedge upper baffle extends along the sliding direction of lateral material presser, the lateral material presser is slidably matched with inclined wedge upper baffle. The lateral material pressing mechanism of stamping die in the utility model solves the problem that the weight of upper die holder is too large, resulting in high cost of stamping die.

The present disclosure relates to the field of construction machinery testing, and particularly relates to a working device for pipe jacking machine pipeline system testing and a detection method. The working device comprises a circulating water pumping system, a spraying system and a sensor system, which can be pre-arranged on a test base, is simple to operate, convenient and fast, solves the problems of large investment and time-consuming and labor-consuming in actual tunneling and cutting tests, and solves the problem that a large area of site is not necessarily suitable for actual tunneling and cutting tests.

The utility model relates to an automatic water supply control device, it includes: water pool, the depth of water pool is H, first liquid level switch sets up in water pool, and the height of distance water pool's bottom is L, second liquid level switch sets up in water pool, and the height of distance water pool's bottom is S, first relay, first liquid level switch's output end is connected with first relay's trigger input end, alarm device, second liquid level switch's output end is connected with alarm device, inlet pipe, one end is connected with water source, and the other end is led into water pool, electromagnetic control valve sets up on inlet pipe for controlling the on-off of water route in inlet pipe, the control end of electromagnetic control valve is connected with first relay's output end, wherein, 0.2H <= L <= 0.3H, 0.7H <= S <= 0.8H. The application can realize the water level monitoring for factory production water pool, and can realize automatic water supply, and work is safer and more reliable.

This invention discloses a control system for a roasting system in the pretreatment of waste lithium batteries, including a preheating subsystem. The preheating subsystem includes a preheater, a preheater chain conveyor, a conveyor and processing device for the chain conveyor, an exhaust fan, an oxygen content sensor, and a DCS system. The outputs of the preheater chain conveyor, the conveyor and processing device for the chain conveyor, the exhaust fan, and the oxygen content sensor are connected to the DCS system. The DCS system controls the opening and closing of the preheater and the preheater chain conveyor based on status signals from these components. The output of the DCS system is connected to a hydraulic valve at the preheater outlet, used to control the valve to open and close according to a set time. By sequentially controlling the operation of each system, the safe and efficient operation of the roasting system is ensured.

This invention provides a method for constructing a prefabricated computer room, relating to the field of prefabricated computer room construction technology. First, parameter information of various components within the computer room is acquired. Based on these parameters, basic families and basic models are created, resulting in a model library. Then, combined with the model library, the design of pipe components, pump sets, and pump set installation structures within the computer room is completed. Drawings are then output, and finally, construction is carried out. This invention establishes a model library for different components by acquiring information about the computer room components. During the design phase, by setting or modifying some parameters of the basic model, suitable component models can be obtained, enabling rapid design of modules of different types and sizes, greatly accelerating the efficiency of computer room modeling and refinement. Simultaneously, pipe components are segmented into multiple prefabricated sections, and pump sets and installation structures are prefabricated as modules, making pipe components and pump set modules easier to manufacture, transport, and install.

This invention provides a low-line-count lidar, belonging to the field of lidar technology, comprising: a housing, a PCBA, an integrated transceiver module, and a multi-faceted scanning mirror; horizontal scanning of the light beam is achieved by rotating the multi-faceted scanning mirror; after the light beam is reflected by reflective surfaces at different tilt angles, different exit angles are generated in the vertical direction, thereby generating multi-line scanning; the number of lines and vertical field of view of the lidar can be flexibly configured by adjusting the number of reflective surfaces and the tilt angle; the overall architecture of this invention is scientifically simple, safe and reliable in operation, requires only one transceiver module, significantly reducing the number of lasers and detectors; it reduces size and is suitable for vehicle-mounted, robotic, and other scenarios; only single-channel transceiver module calibration and standardization are required, making calibration less difficult than for multi-channel systems.

This application relates to a juicer and its control circuit, including a peel detection module, a door opening / closing detection module, a peeling and juicing module, and a start / stop switch, all electrically connected to a control unit. A first proximity switch of the peel detection module is located near the peel container and is used to detect whether the container is full of peels. The door opening / closing detection module is also electrically connected to the juicer's lid and is used to detect whether the lid is closed. When the peel detection module detects that the peel container is not full, the door opening / closing detection module detects that the lid is closed, and the start / stop switch is closed, the control unit controls the drive motor of the peeling and juicing module to drive the peeling and juicing device to perform the peeling and juicing operation. This application solves the problem in related technologies where juicers use direct pressing, resulting in bitter juice and ineffective safety protection measures. By first peeling the fruit and then juicing, the juice is ensured to be non-bitter, improving its taste, and the machine operates safely and practically.

This invention discloses a multifunctional explosion-proof portable lamp, relating to the field of explosion-proof lighting technology, including a lamp housing, a rear lamp body, a handle, a front spotlight, and a pressure ring. The lamp housing houses a lithium battery and a driver board. The rear lamp body integrates a main control chip, a directional light, a control switch, and a charging port. The handle integrates a display screen and a control switch. A laser spotlight is located next to the front spotlight. Symmetrically arranged on both sides of the lamp housing are multi-angle adjustable side light modules, including floodlights and red-blue warning lights. The top of the lamp housing has components for installing network and vision modules. This invention employs a high-strength explosion-proof structure and integrates multiple lighting modes (main lighting, laser aiming, multi-directional adjustable floodlight and warning), a status sensing module (positioning, vision), and remote data transmission capabilities. This achieves intelligent lighting, precise work assistance, panoramic safety warnings, and remote monitoring in hazardous environments, significantly improving the safety, efficiency, and intelligent management level of complex industrial site operations.

This application relates to the field of switching power supply technology and discloses a gallium nitride (GaN) charger based on a 494 PWM chip. The charger includes a power board, a rectifier circuit module, a half-bridge GaN driver module, a transformer, a 494 chip control module, a totem-pole driver module, an isolation driver transformer, a full-wave rectifier module, a filter circuit module, and a conversion circuit module. The core of this application is that the 494 chip control module generates a PWM signal, which is then amplified by the totem-pole driver module and electrically isolated and coupled by the isolation driver transformer before driving two GaN transistors in the half-bridge topology to switch alternately at high frequency. This application fully utilizes the high-speed switching characteristics of GaN devices, enabling the charger to operate at higher frequencies. This increases the power level to the kilowatt level while reducing switching losses and the size of magnetic components, achieving high power density and high overall conversion efficiency.

The application discloses a waste heat recycling device and method of a steam boiler and relates to the technical field of steam boiler waste heat equipment, which comprises a steam boiler shell, a steam boiler support fixedly installed on the outer side of the steam boiler shell, a steam boiler main body fixedly installed on the inner side of the steam boiler shell, a waste heat recycling device fixedly connected to the flue gas output end of the steam boiler main body on the side of the steam boiler support close to the steam boiler main body, and a plurality of smoke pipes arranged in the steam boiler main body along the horizontal direction. The application dynamically balances the flue gas flow and temperature entering each smoke pipe, ensures that the flue gas distributed uniformly and the temperature field is stable when finally discharged from the boiler and entering the waste heat recycling device. The application changes the condition that the traditional boiler flue gas outlet exists serious 'flue gas deviation' (namely local high temperature and high speed), so that each part of the waste heat recycling device can work efficiently and safely under the design condition.

A battery cell dynamic adjustment method, device, equipment and storage medium, by periodically collecting the corresponding target operating state parameters of a plurality of battery cells, and according to the target operating state parameter fusion history operation data, determine the abnormal level of a plurality of battery cells in the current monitoring period, and then according to the comprehensive operation index, dynamically adjust the charge and discharge rate, current or connection state of the target battery cell. By fusing the target operating state parameters and historical operation data of the plurality of battery cells, combining the pre-constructed battery cell comprehensive operation health state evaluation model to analyze the target battery cell that needs to be adjusted and the abnormal level of the target battery cell, and adjusting the state of the target battery cell combined with the abnormal level, to ensure that the battery cell works in an efficient and safe state, thereby improving the overall performance of the energy storage system.

The application belongs to the technical field of server heat dissipation, and discloses a server heat dissipation control system and a server, which comprises: a host shell; a plurality of cylinder barrels, which are symmetrically arranged in pairs and fixedly arranged on the inner wall of the host shell, and the inner wall of each of the plurality of cylinder barrels is movably embedded with a piston; the application adopts a double-composite damping mode combining spring mechanical energy storage and air bag air pressure damping, can effectively absorb low-frequency working vibration and instantaneous external impact load in the server operation process, delays the spring rebound speed, reduces the equipment resonance, secondary bounce and component hard knock problems, reduces the loss of the internal precision electronic components, circuits and connection plug-in of the server caused by vibration, and automatically supplements normal temperature cold air heat exchange by air pressure pressure difference, so that the passive heat dissipation energy consumption is extremely low, the heat dissipation efficiency is high, the problems of high temperature accumulation of the core heating module, power attenuation and rapid aging of components are effectively avoided.

The utility model relates to the technical field of down lamps, in particular to a swingable down lamp which comprises a radiator, a waterproof assembly is arranged on the other side of the upper surface of the radiator, a fixing piece is fixedly connected to the interior of the radiator, a light source support is clamped to the surface of the fixing piece, and a lens is in threaded connection to the surface of the light source support. The surface of the lens is connected with an anti-dazzle assembly in a clamped mode, the side surface of the radiator is in threaded connection with a fixing assembly, and the surface of the fixing assembly is in threaded connection with a swingable assembly. Through the arrangement of the waterproof assembly, water can be effectively prevented from entering the lamp, it is ensured that the down lamp can work safely and reliably in a humid environment, the service life of the lamp is prolonged, meanwhile, installation and use are easy, through the arrangement of the anti-dazzle assembly, dazzle emitted by the lamp can be effectively reduced, light is softer and more uniform, and the service life of the down lamp is prolonged. Therefore, the light becomes more comfortable, the stimulation to human eyes is reduced, and the comfort of illumination is improved.

The mechanical limiting mechanism comprises an outer adjusting piece and an outer lower adjusting piece, the two sides of the outer lower adjusting piece are connected with the outer adjusting piece, a first support, a second support, a first support and a second support are arranged on the outer adjusting piece, the first support is arranged on the first support, and the second support is arranged on the second support. The first support is arranged on the rear portion of the outer adjusting piece, and the second support is arranged on the front portion of the outer adjusting piece. A hook and a third support are arranged on the outer lower adjusting piece, the hook is arranged on the rear portion of the outer lower adjusting piece and in lap joint with the first support, and the third support is arranged on the front portion of the outer lower adjusting piece. By arranging the first support, the second support and the hook, the outer adjusting piece can be mechanically limited at the maximum nozzle and the minimum nozzle, limiting mechanisms are arranged on the outer adjusting piece in the radial direction, the circumferential direction and the axial direction, the synchronous folding and unfolding reliability of the short outer adjusting piece can be guaranteed, the mechanical strength of connection is also improved, and the use reliability of the spray pipe is guaranteed.

The utility model discloses a data center industrial connector, which comprises a male head and a female head, the male head and the female head are matched, two ends of the male head are provided with insertion heads, two ends of the female head are provided with insertion frames, the insertion heads are matched with the insertion frames, the insertion frames are internally and slidably connected with limiting blocks, the insertion frames are provided with control blocks, and the control blocks are connected with the limiting blocks. The control block is matched with the limiting block, a limiting groove is formed in the inserting head, the limiting block is matched with the limiting groove, a rotating frame is arranged at one end of the male head, a first rotating pipe is arranged at one end of the rotating frame, the rotating frame is in rotating fit with the male head through the rotating pipe, and a rotating head is arranged on the rotating frame. Second rotating pipes are arranged at the two ends of the rotating head, the rotating head is rotationally matched with the rotating frame through the second rotating pipes, the equipment is connected more stably, the protection capacity is improved, and the stabilizing effect is improved.

The utility model discloses a low-temperature protection type electronic wire harness structure, which relates to the technical field of electronic wire harnesses and comprises a plurality of wire harness bodies, a heat conduction structure is arranged in the plurality of wire harness bodies, a heat dissipation structure is arranged on the lower wall surface of the heat conduction structure, and a protection structure is arranged outside the plurality of wire harness bodies. The heat-conducting structure comprises a heat-conducting main pipeline, a plurality of heat-conducting branch pipelines and a heat-conducting bottom box, the heat-conducting main pipeline is mounted in the wire harness bodies, and one end of each heat-conducting branch pipeline is mounted on the lower wall surface of the heat-conducting main pipeline; according to the utility model, the heat dissipation pipeline is bound in the middle of the electronic wire harness, so that the electronic wire harness can fully carry out passive heat dissipation, and then the electronic wire harness works in a low-temperature environment, thereby ensuring that the electronic wire harness works in a safe and stable environment; on the premise of no heat accumulation, a plurality of electronic wire harnesses are bound together, so that a certain space can be saved, and wire arrangement and subsequent maintenance work are facilitated.

The invention discloses a dome cover skin forming composite tool and a using method thereof.The dome cover skin forming composite tool comprises a composite die body made of the same material as a dome cover skin workpiece, the inwards-concave spherical surface of the composite die body is a forming functional surface used for forming the dome cover skin workpiece, and a plurality of reinforcing ribs are arranged on the outwards-convex spherical surface of the composite die body; and the metal frame is connected with the outer convex spherical surface of the composite material die body through a flexible connecting piece. The device has the characteristics of being high in forming precision, convenient to adjust and the like, and meanwhile, the mounting precision, the supporting strength and the rigidity of the composite dome cover skin are improved.

The invention provides a shield gate transistor and a preparation method thereof, a chip and electronic equipment, and relates to the technical field of semiconductors, and the shield gate transistor comprises a substrate and an epitaxial layer located at the first side of the substrate; a first conductive type body region; the first conductive type body region is formed in the epitaxial layer from one side, deviating from the substrate, of the epitaxial layer; a second conductive type heavily doped region and a trench gate structure; the second conductive type heavily doped region is formed in the first conductive type body region from one side, deviating from the substrate, of the first conductive type body region; the trench gate structure is at least formed in the first conductive type body region from one side, deviating from the substrate, of the first conductive type body region; wherein the doping concentration in the second conductive type heavily doped region and / or the junction depth of the PN junction in the second conductive type heavily doped region are / is changed in a gradient manner along the extension direction of the trench gate structure. According to the technical scheme, the starting risk of the parasitic triode is low, and the saturation current density of the device is reduced.