9results about How to "Normal pressure" patented technology

The invention relates to a small electro-hydrostatic actuator, and belongs to the technical field of actuators, the small electro-hydrostatic actuator comprises a motor, a connecting pipe, a valve block, a plunger pump and a hydraulic oil cylinder, a first port of the connecting pipe sleeves the peripheral side of a motor output shaft and is fixed on a motor shell; one side of the valve block is fixed to the second port of the connecting pipe and is provided with a first groove, and a first liquid supply channel and a first liquid return channel are arranged in the valve block; the plunger pump is fixedly inserted into the first groove and is in transmission connection with the output shaft of the motor; the hydraulic oil cylinder is fixed to the bottom end of the valve block. According to the electro-hydrostatic actuator, the plunger pump is inserted and fixed in the first groove of the valve block, the size of the electro-hydrostatic actuator is reduced, and the weight of the electro-hydrostatic actuator is reduced; and then a first liquid supply channel and a second liquid supply channel are arranged in the valve block, and a liquid outlet hole of the plunger pump, the first liquid supply channel, the hydraulic oil cylinder, a first liquid return channel and a liquid inlet hole of the plunger pump are sequentially communicated to form a hydraulic driving loop, so that the sealing performance of the electro-hydrostatic actuator can be improved, and the purposes of miniaturization and light weight of the electro-hydrostatic actuator are achieved.

The invention provides an industrial plastic injection molding part performance testing device, and relates to the technical field of injection molding part sealing testing, the industrial plastic injection molding part performance testing device comprises a detection sleeving part, a sealing part is installed on the detection sleeving part, and an expansion supply part is installed on the sealing part; the expansion supply piece is used for controlling the sealing piece to expand and hermetically fit the injection molding piece; a handheld mounting piece is mounted on the detection sleeving piece; the handheld mounting piece is used for being held by hand; a leakage point length checking piece is mounted on the handheld mounting piece; the detection of the length range of the leakage point is facilitated, the device is more practical, and the subsequent targeted maintenance by workers is facilitated, so that the problems that the existing injection molding part performance testing device is inconvenient to detect the length of the leakage point and is inconvenient for the subsequent workers to accurately adjust and polish the flange end surface are solved.

The application discloses a glaucoma drainage device and belongs to the technical field of medical devices. The glaucoma drainage device comprises a drainage sheet, the inside of which is a cavity structure, the drainage sheet is divided into a left cavity and a right cavity through a first partition plate, the upper surface of the left cavity is provided with a drainage hole, and the first partition plate is provided with a drainage opening; a drainage assembly is in communication with the inside of the drainage sheet through a connecting hole provided on the drainage sheet; and a fixing mechanism is arranged on the drainage sheet and used for fixing the drainage sheet and the drainage assembly. The glaucoma drainage device can fix the drainage assembly and the drainage sheet of the device through a mechanical fixing structure, avoids the problems of the suture fixation of the drainage device in the prior art, simplifies the operation process, shortens the operation time, reduces the complications caused by the suture foreign matter, and improves the fixing reliability and safety.

The utility model discloses a hydraulic system of a twin-dragging six-degree-of-freedom platform, which belongs to the technical field of hydraulic systems and comprises a base. An oil tank, a hydraulic oil pump assembly, a pressure adjusting device, an electric adjusting valve, a circulating pump, a filtering device, a temperature adjusting assembly and an oil conveying pipeline are arranged on the base. The hydraulic oil pump assembly supplies hydraulic oil to the six-degree-of-freedom platform through the oil tank, the hydraulic oil pump assembly, the pressure adjusting device, the filtering device and the electric adjusting valve through the oil conveying pipeline, and the circulating pump enables the hydraulic oil in the six-degree-of-freedom platform to sequentially pass through the circulating pump and the temperature adjusting assembly to return into the oil tank through the oil conveying pipeline. The hydraulic system of the twin-trawling six-degree-of-freedom platform can effectively solve the problems that in the prior art, an oil supply device of the twin-trawling six-degree-of-freedom platform is large in occupied area, long in oil conveying pipeline, inconvenient to maintain and the like.

This application discloses a circuit device and method for monitoring the status of a light-controlled thyristor and reporting overvoltage protection. The device includes a BOD (Browser Overvoltage) action and overvoltage event identification and reporting unit and a passive thyristor status monitoring unit connected in parallel across the two ends of the light-controlled thyristor pair within the switch. The BOD action and overvoltage event identification and reporting unit uses an external BOD mirror to reflect the internal protection threshold and utilizes back-end logic to intelligently identify signals, simultaneously achieving reliable reporting of BOD overvoltage protection actions and independent detection of unexpected system overvoltage events. The high-capacitive reactance circuit of the passive thyristor status monitoring unit enables low-power, passive online monitoring of the light-controlled thyristor status, directly indicating the health of the light-controlled thyristor component. This application integrates three major functions: real-time component status monitoring, BOD protection action reporting, and intelligent overvoltage event identification. It features full fiber optic isolation, passive high reliability, and is an innovative front-end sensing and intelligent monitoring and reporting solution specifically designed for railway automatic phase-splitting electronic switches.

The invention relates to the technical field of animal breeding, and discloses a feeding bottle and a donkey foal feeding method.The donkey foal feeding method comprises the following steps that milk is added into the feeding bottle according to the growth condition of a donkey foal, the added milk amount ranges from 500 ml to 1000 ml, the feeding bottle is put into warm water at 37 DEG C to be heated in a water bath, the donkey foal is fed four times in the daytime, and the donkey foal is fed three times at night, feeding equipment used by the method comprises a feeding frame, a plurality of tank bodies are installed in the feeding frame, nipples are installed on one sides of the tank bodies, quantitative adjusting devices are arranged in the tank bodies and comprise adjusting plates slidably connected into the tank bodies, adjusting threaded rods are arranged on one sides of the adjusting plates, and the adjusting threaded rods are arranged in threaded grooves. The threaded groove is formed in the side, away from the nipple, of the tank body, the feeding frequency every day and the total feeding amount every time are strictly controlled, and the problem that the donkey foals are poor in development in the growth process due to a non-standard feeding method is solved.

The invention belongs to the technical field of lithium battery testing, and particularly relates to a new energy lithium battery testing comprehensive management system, which comprises a data acquisition module, a data processing module and a data processing module, the cooling module is used for cooling the high temperature in the discharging process of the lithium battery, and the specific cooling mode is as follows: the temperature in the discharging process of the lithium battery is controlled by increasing the flow rate of a cooling medium, and the discharging performance of the battery can be influenced by increasing the electrolyte viscosity of the battery and reducing the electrochemical reaction rate in a low-temperature environment; the low-temperature preheating system increases the temperature of the battery pack by heating a cooling medium, so that the performance of the battery under a cold condition is improved; by controlling the cooling medium in the discharging process of the lithium battery, the temperature in the whole discharging process is constant, and the flow velocity and flow of the cooling medium can be accurately controlled.

The utility model relates to the technical field of liquid preparation equipment, and discloses an automatic liquid preparation cleaning device, which comprises a liquid preparation unit, a cleaning unit and a control unit, the powder conveying unit comprises a powder tank for containing powder materials; the weighing unit comprises a weighing tank communicated with the powder conveying unit and an electronic scale for weighing the weighing tank; the stirring unit comprises a stirring barrel and is communicated with the tail end of the liquid preparation tank and the tail end of the weighing tank at the same time, and stirring blades suitable for stirring solvent materials and powder materials are arranged in the stirring unit. According to the automatic liquid preparing and cleaning device, the liquid preparing unit, the powder conveying unit, the weighing unit and the stirring unit are integrated, the whole liquid preparing process is completed in an automatic control mode, it is guaranteed that needed materials are accurate and controllable, and the situation that due to manual operation, weighing data deviation is large or personnel operation errors are caused is avoided.

The invention discloses a heat pump system, a control method of the heat pump system, an air conditioner and a storage medium, and relates to the technical field of heat pumps, the heat pump system comprises a phase separator, a liquid storage device, a refrigerant adjusting assembly and a refrigerant circulation loop, the refrigerant circulation loop comprises a compressor, a first heat exchanger, a throttling device and a second heat exchanger, wherein the first heat exchanger, the throttling device and the second heat exchanger are sequentially connected. The first heat exchanger and the second heat exchanger communicate with an air return opening of the compressor and an exhaust opening of the compressor correspondingly. The phase separator is provided with a refrigerant inlet and a liquid phase outlet, the second heat exchanger communicates with the refrigerant inlet, and the second heat exchanger, the liquid phase outlet and the liquid storage device are all connected with a refrigerant adjusting assembly. The refrigerant adjusting assembly is arranged to adjust the flowing state of refrigerants between the liquid storage device and the second heat exchanger and between the phase separator and the second heat exchanger. The output capacity and energy efficiency of the heat pump system are improved.