30results about How to "Reduce material strength requirements" patented technology

The present invention is applicable to the technical field of medical equipment, and provides a device for assisting getting up, including: a frame; a drive mechanism, including two drive components; each part of the drive component includes a hand crank, a transmission component, a gear and a The arc-shaped rack; the shoulder support mechanism is arranged on the driving mechanism and is used to hold the user's shoulder; wherein, when the user shakes the hand crank, the hand crank drives the gear through the transmission assembly The arc-shaped rack moves upwards, so that the shoulder support mechanism supports the user's shoulders to perform an arc-shaped movement, so as to realize the operation of getting up. The power-assisted getting up device of the present invention is assembled by a frame, a driving mechanism and a shoulder supporting mechanism. The driving component includes a hand crank, a transmission component, a gear and an arc-shaped rack arranged on the frame. The structure is simple, and the device has a small weight. Without external power supply, the user's getting up speed can be adjusted according to the frequency of manually shaking the hand crank, so that the getting up speed can be adapted to the physical condition of the user.

The invention discloses a turbojet engine. The turbojet engine comprise a housing, an air inlet, a combustion chamber, an air compressing component, a turbine and a tailpipe, wherein the air inlet, the combustion chamber and the air compressing component are disposed inside the casing; the rotatable turbine is installed behind the combustion chamber; the tailpipe is used for jetting high-speed air; and the air compressing component comprises at least two air compressing devices. Through a turbine shaft, the turbine is connected with a transmission and speed device which is used for driving at least two air compressing devices to rotate; the air compressing devices have different distances from the combustion chamber; and optional two air compressing devices have axes which are mutually staggered. Compared the turbine to each air compressing device, according to the distance sequence from far to near of the air compressing device and the combustion chamber, the drive ratio between the turbine and each air compressing device decreases, and each drive ratio is less than 1. Through the reasonable arrangement of the air compressing devices and according to the speed thereof, airflow backflow is reduced by means of acceleration step by step, and thus, the rate of surging occurrence is reduced.

The invention relates to a fireproof cabinet and a fireproof method thereof. The fireproof cabinet is provided for storing a protection object, and comprises a main frame, a movable frame, a fireproof chamber and a fireproof liquid, wherein the movable frame is slidably connected with the main frame, the movable frame slides between a first position and a second position relative to the main frame, a protection object is placed in the movable frame, the movable frame and the protection object are positioned on the first position under an operation mode, the movable frame and the protection object slide to the second position from the first position under a fireproof mode so as to accommodate the movable frame and the protection object into the fireproof chamber, the fireproof liquid is positioned in the fireproof chamber, and the protection object is immersed into the fireproof liquid when the movable frame and the protection object are positioned on the second position. According to the present invention, the effective fireproof function can be provided.

The invention belongs to the technical field of oil drilling rig equipment, and in particular relates to a drilling tool conveying device. The drilling tool conveying device of the present invention includes a translation device, the translation device is provided with a clamping part, and the clamping part can movably install the drilling tool, and the translation device drives the clamping part to move in the horizontal direction, and The clamping part is driven to rotate in the vertical plane, and the driven drilling tool rotates along the horizontal direction with the clamping part, and at the same time rotates in the vertical plane to complete the delivery of the drilling tool in the oil drilling process. The drill conveying device of the present invention has simple structure, high degree of automation in the process of conveying the drill, high efficiency and strong safety in the conveying process of the drill, and can be widely used in conveying different drills on various types of drilling rigs.

The invention relates to a pressure balance type ultra-small catalytic reaction efficiency comparison evaluating device which comprises a gas inlet unit, a reaction chamber and a detector, wherein the reaction chamber comprises a housing, a gas inlet coil pipe, a gas inlet coil pipe heating and temperature controlling assembly, at least one catalyst reaction pipe and a catalyst reaction pipe heating and temperature controlling assembly, wherein the inlet end of the gas inlet coil pipe is communicated with the gas inlet unit, the outlet end of the gas inlet coil pipe is opened; the gas inlet coil pipe heating and temperature controlling assembly heats the gas inlet coil pipe and controls the temperature of the gas inlet coil pipe; the catalyst reaction pipe is filled with a catalyst, the inlet end of the catalyst reaction pipe is opened, the outlet end of the catalyst reaction pipe is communicated with the detector; and the catalyst reaction pipe heating and temperature controlling assembly heats the catalyst reaction pipe and controls the temperature of the catalyst reaction pipe. Compared with the prior art, the pressure balance type ultra-small catalytic reaction efficiency comparison evaluating device has the advantage that the problems that additional catalysis actions of a common reaction pipeline in an existing high-temperature and high-pressure catalytic reaction device are interfered, and the evaluation performances of catalysts with different components cannot be accurately controlled under the condition of multiple consistent experiment parameters are solved.

The invention discloses a method for improving the dosage measurement accuracy of a powder inhalation administration device and belongs to the field of inhalation type administration instruments. A lower flow channel component is subjected to overall knock type vibration through a rotary table by using a vibration gear; meanwhile, a second vibration part namely an inner drug cylinder capable of being synchronously and freely vibrated is also arranged in a drug powder storage container, drug powder in the drug powder storage container is compositely vibrated, and a dual vibration effect is generated by using the structures of master and slave vibration parts, so that the drug powder in the drug powder storage container can more uniformly flow into a quantitative drug tank, the dosage measurement accuracy of a single dosage of drug powder provided by the drug powder storage container of the powder inhalation administration device in each administration process can be better ensured, and the good adaptability of the powder inhalation administration device to the types of drug powder in a larger range is improved. The method for improving the dosage measurement accuracy of the powder inhalation administration device can be widely applied to the fields of designing and manufacturing of the powder inhalation administration devices of various specifications.

The invention provides a coaxial birotor general wind generator which comprises a bracket which is arranged on a tower post and can freely rotate around a vertical axis in the tower post, a ram head is arranged above the bracket, and one side of a stander is provided with a wind helm. The ram head consists of a main shaft, an outer casing shaft, two wind wheels, a magnetic steel rotor and a coil rotor, wherein, the outer casing shaft is sheathed at one end of the main shaft, the main shaft and the outer casing shaft are arranged on the bracket through bearings, the wind wheel I is fixed on the main shaft, the wind wheel II is fixed on the outer casing shaft, the magnetic steel rotor is fixedly arranged on the main shaft, and the coil rotor is fixedly arranged on the outer casing shaft. The coaxial birotor general wind generator has high working efficiency, good stability and small occupied area of equipment, and can be placed in courtyards, the tops of buildings or roofs, gazebos and other places; and the generator has the advantages of simple and convenient installation, high feasibility, low cost, simple structure, convenient production and maintenance, and the like.