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601results about How to "Small volumn" patented technology

Disposable sterile PP (polypropylene) humidification bottle and manufacturing process thereof

The invention belongs to the technical field of artificial oxygen input equipment, and relates to a disposable sterile PP (polypropylene) humidification bottle and a manufacturing process thereof. The humidification bottle comprises a bottle body and a bottle cover installed on the upper end of the bottle body, wherein an oxygen input pipe and an oxygen output pipe communicated with an inner cavity of the bottle body are arranged at the upper side of the bottle cover, the oxygen input pipe is extended to the bottom of the bottle body and a gap is formed between the oxygen input pipe and the bottom of the bottle body, both the ends of the oxygen input pipe and the oxygen output pipe at the upper side of the bottle cover are provided with end caps which are easily broken, an air filtering device is arranged at the lower end of the oxygen input pipe, and humidification liquid for humidifying oxygen is filled in the bottle body and accounts for 60-80% of the capacity of the inner cavity of the bottle body. The manufacturing process of the humidification bottle comprises the steps of: producing purified water; manufacturing the bottle cover with the oxygen input pipe and the oxygen output pipe, a bottle body, a sleeve, an air filtering device and a dustproof protective sheath; sterilizing at high temperature; and packaging and warehousing for future use, and the like. The manufacturing process is simple and practical, and the product is low in noise, free from nose irritation, simple, safe and healthful in structure and suitable for the use as a disposable humidification bottle for patient oxygen inhalation.
Owner:浙江纽西医疗器械有限公司

Multifunctional roadway repairing machine

The invention belongs to the technical field of coal mine underground roadway repairing equipment and in particular relates to a multifunctional roadway repairing machine which is applicable to coal mine underground roadway cleaning, ditch digging, undercover rock breaking and slope expansion work. The multifunctional roadway repairing machine provided by the invention comprises a walking part, a machine body part, a cutting assembly, a drilling arm part and a hydraulic system, wherein a walking mechanism is arranged at the lower side of the machine body part; the cutting assembly is arranged at the front end of the machine body part; the drilling arm part is arranged at the right side of the machine body part; the hydraulic system is arranged at the tail end of the machine body part. According to the multifunctional roadway repairing machine provided by the invention, multidirectional breaking work of a side wall, a bottom plate, a mining and tunneling working surface and the like in a narrow roadway is realized, and rapid loading and unloading of materials are realized through a mini-type shovel bucket at the front end of a supporting arm; a machine set is provided with a mechanical drilling arm capable of doing drilling work and certain useless anchoring holes of top slope anchor rods can be marked so that one machine has various functions; the whole machine works mechanically so that the labor intensity of workers is alleviated, the labor safety risks of workers is are reduced and the working efficiency is improved.
Owner:SHANXI TIAN JU HEAVY IND

Drive assembly of pulsator washing machine

The invention relates to a drive assembly of a pulsator washing machine. The drive assembly comprises a mounting tray. A spindle and a shaft sleeve sleeved on the spindle are rotatably disposed on the mounting tray. A reduction electromagnetic clutch mechanism is disposed between the spindle and the shaft sleeve. A drive mechanism is disposed on the lower portion of the spindle. The reduction electromagnetic clutch mechanism is an electromagnetic clutch mechanism having a function of electromagnetic clutch planetary gear reduction. The reduction electromagnetic clutch mechanism is provided with a planetary gear component and an electromagnetic clutch component. The drive mechanism is an external rotor direct-drive motor comprising a rotor and a stator. The stator is fixedly connected to the mounting tray. The rotor is fixedly connected with the spindle. The spindle and the electromagnetic clutch and planetary gear reduction mechanism are directly driven by an external rotor motor, and accordingly defects such as complex ratchet and pawl structure, large size and low control accuracy in the prior art are broken through. Electromagnetic clutching is high in transmission efficiency, accurate in transmission and clutching control and low in noise; the whole drive assembly is light in weight, pull-in voltage and holding voltage are less demanded in electromagnetic clutching, and energy consumption is reduced effectively.
Owner:CHANGZHOU XINYA ELECTROMOTOR

Motor control device and air-conditioner using same

The invention provides a high efficiency motor control device which can reduce noise caused by resonance of a fan and a rotor even though the motor and the fan are not provided with rubber vibration insulators. The motor control device comprises an inverter, a vector control portion, a high-order component generating unit, a voltage adding-up portion, and a PWM pulse generating portion. The inverter is connected with a DC power supply, and the inverter converts DC electricity of the DC power supply to variable-voltage variable frequency AC electricity to drive and control a three-phase motor. The vector control portion calculates voltage applied on the three-phase motor. The high-order component generating unit calculates high-order components of a fundamental wave of the vector control portion applied voltage. The voltage adding-up portion adds the high-order components calculated by the high-order component generating unit to the applied voltage calculated by the vector control portion. Pulse width controls the inverter. The high-order component generating unit generates both of (6m-1) order and (6m+1) order of the fundamental wave component of the three-phase applied voltage, or a high-order component of one of the (6m-1) order and (6m+1) order of the fundamental wave component to apply on the voltage adding-up portion, reducing resonant noise of the three-phase motor at 6m (m is a positive integer) times of rotation frequency.
Owner:HITACHI JOHNSON CONTROLS AIR CONDITIONING INC
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