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253results about How to "Avoid direct action" patented technology

Air-oxygen mixing airway for respirator, respirator and method

Disclosed are an air-oxygen mixing airway for a respirator, the respirator and a method. The air-oxygen mixing airway comprises an anti-turbulence member and an air-oxygen mixing cavity, the anti-turbulence member comprises an oxygen way and an air way, two ends of the air way are open, the left end of the oxygen way is closed while the right end of the same is provided with an oxygen barrier piece, and an oxygen inlet is arranged on the outer side of the oxygen barrier piece. The respirator comprises an oxygen way, an air way and an air-oxygen mixing chamber provided with the air-oxygen mixing airway, an oxygen miniature proportional valve, an oxygen flow sensor and an air intercepting member are arranged on the oxygen way, a fan, an air pressure adjusting valve, an air flow sensor and an air intercepting member are arranged on the air way, and opening degree of the oxygen valve is adjusted to adjust oxygen flowing speed according to oxygen concentration of mixed gas needing to be output and air flowing speed measured by the air flow sensor. The anti-turbulence member is adopted in the air-oxygen mixing airway, and can cooperate with the flow sensors which are high in accuracy and low in power consumption, and the oxygen barrier piece is utilized, so that accuracy of air-oxygen mixed gas can be improved.
Owner:HUNAN MICOME ZHONGJIN MEDICAL SCI & TECH DEV CO LTD

Combing-brush profile-modeling fructus-lycii picking tail-end executor

The invention belongs to the technical field of agricultural machines, and particularly relates to a combing-brush profile-modeling fructus-lycii picking tail-end executor. The combing-brush profile-modeling fructus-lycii picking tail-end executor comprises a main shaft and groove cams connected to the two ends of the main shaft. A plurality of picking fingers are hinged to the middle of the mainshaft, and are combined together to be in emission shapes from inside to outside, a ring of cam groove is formed in the inner side of the each groove cam in a milled mode, and cam driven bearings arearranged in the cam grooves and can freely roll along the cam groove; pressing plates are installed between the corresponding cam driven bearings on the two groove cams, a plurality of holes are formed in the pressing plates, each picking finger penetrates through the middle of each hole, the picking fingers are driven to rotate when the main shaft rotates, and drive the pressing plates to rotate,the holes in the pressing plates slide up and down at the lower ends of the picking fingers, and therefore gap changes between the picking fingers are oppressed. The structure is simple, the cost islow, and mature fruits can be effectively screened and picked; the breakage rate of fructus lycii is greatly reduced; meanwhile, friction force between the picking fingers and the fructus lycii is enlarged, and the net picking rate is guaranteed.
Owner:CHINA AGRI UNIV

Hand clamping preventing structure and air conditioner with same

The invention provides a hand clamping preventing structure and an air conditioner with the same. The hand clamping preventing structure comprises a mounting seat, a locating mechanism and a resetting mechanism, wherein the mounting seat is used for mounting the hand clamping preventing structure on a first predetermined structure; the locating mechanism is movably arranged on the mounting seat so as to be used for mounting a second predetermined structure, and the locating mechanism is provided with an initial position and a hand clamping position deviated from the initial position; the resetting mechanism is connected with the locating mechanism; the locating mechanism is located on the hand clamping position because of being deviated from the initial position under the action of a barrier force; and the resetting mechanism is used for resetting the locating mechanism. By using the hand clamping preventing structure and the air conditioner with the hand clamping preventing structure, directly acting a torque brought by the first predetermined structure on a hand can be avoided, a hand clamping preventing effect can be achieved because a hand clamping force is gradually increased, but does not reach the maximum at a moment, and furthermore potential safety hazards of the air conditioner are reduced.
Owner:GREE ELECTRIC APPLIANCES INC

Machining tool suitable for shaft workpiece

The invention discloses a machining tool suitable for a shaft workpiece, and belongs to the field of machining tools. The machining tool comprises a plurality of adjusting bolts and a shaft sleeve used for being installed outside the to-be-machined shaft workpiece in a sleeving manner; the inner diameter of the shaft sleeve is larger than the outer diameter of the to-be-machined shaft workpiece, flange structures are arranged at the two ends of the shaft sleeve, and screw holes matched with the adjusting bolts are formed in the circumferential wall of each flange structure in the circumferential direction; the adjusting bolts are inserted into the shaft sleeve through the screw holes, and the thread length of the adjusting bolts is larger than the wall thickness of the flange structures; and during machining, the shaft sleeve is fixedly installed on the outer side of the to-be-machined shaft workpiece through the multiple adjusting bolts, a center support is arranged outside the shaft sleeve in a sleeving manner, the distance between the two flange structures is larger than the length of the center support, and one end, abutting against the to-be-machined shaft workpiece, of each adjusting bolt is of a spherical surface structure. The machining tool can be used for guaranteeing the coaxiality of the outer circle of the machined workpiece and machined inner holes; and due to the fact the center support is prevented from being directly acting on the outer circle of the workpiece, the machining tool can be used for protecting the surface of the outer circle of the workpiece during machining.
Owner:WUHAN MARINE MACHINERY PLANT

Three-dimensional magnetic induction intensity measurement coil for ultra-high-speed collision magnetic field

The invention discloses a three-dimensional magnetic induction intensity measurement coil for an ultra-high-speed collision magnetic field, and belongs to the technical field of measurement of impact dynamics. The measurement coil comprises a spherical frame and three annular coils, wherein the spherical frame is in a sphere shape, three annular grooves which are perpendicular to one another are formed in the surface of the spherical frame in the radial direction, the depths of the three annular grooves decrease in sequence, the three annular coils wind the three annular grooves correspondingly and are independent of one another, each coil is connected with one BNC plug, and the BNC plugs are connected with three external data collection channels which are independent of one another. The three coils which are perpendicular to one another spatially are adopted to obtain the magnetic induction intensity of a certain spatial point in three directions, the magnetic field information of a measured point is known comprehensively, and interference and errors for research of the collision magnetic field are avoided; the measured coil induction electromotive force signals are synchronous in time, and a measurement result is more accurate. The three-dimensional magnetic induction intensity measurement coil for the ultra-high-speed collision magnetic field is simple in design, easy in operation and capable of being recycled.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Non-standard-sample calibration method adopting femtosecond plasma channel breakdown spectroscopy

The invention relates to the technical field of element detecting, in particular to a non-standard-sample calibration method adopting a femtosecond plasma channel breakdown spectroscopy. The calculation method includes the following steps that A1, a femtosecond pulse laser transmitted by a laser transmitting module passes a focusing module to form multi-beam femtosecond chevilled silks; A2, an X element with known concentration is added on a sample selected from to-be-tested samples, the femtosecond chevilled silks are used for acting on the sample added with the X element, and relation of spectral line signal strength and concentration of the X element in the to-be-tested sample is obtained; and A3, tested spectral line signal strength of the X element and concentration of the X element in a characteristic spectral line signal of the to-be-tested samples are combined, thus universal relation of spectral line signal strength and concentration of the X element in the to-be-tested samplecan be obtained, and non-standard-sample calibrating is realized, wherein the characteristic spectral line signal of the sample in the step A2 does not contain a characteristic signal of the X element. According to the non-standard-sample calibration method adopting the femtosecond plasma channel breakdown spectroscopy, the matrix effect can be overcome, and non-standard-sample concentration calibrating for testing elements is realized.
Owner:GUANGDONG ROI OPTOELECTRONICS TECH CO LTD +2

Violence destroy preventing knob lock cylinder

The invention discloses a violence destroy preventing knob lock cylinder. The violence destroy preventing knob lock cylinder comprises an inner lock head body, an outer lock head body and an unlockingpoking wheel; the inner lock head body and the outer lock head body are connected through a connecting block therebetween; an outer lock liner is arranged in the outer lock head body; an inner lock liner is arranged in the inner lock head body; the unlocking poking wheel is clamped between an inner side end of the outer lock liner and an inner side end of the inner lock liner; the axial inner side end of the inner lock liner is in locking connection with the unlocking poking wheel; a knob is fixedly arranged at the axial outer side end of the inner lock liner; and the knob inner lock liner istwisted to rotate to drive rotation of the unlocking poking wheel to realize unlocking. Under the condition of violence destroy, the lock cylinder is prevented from directly acting on a lock body after destroy through a reasonable connecting structure; and through a clutch self-locking structure, after the external of the lock cylinder is damaged, a poking wheel locks an inner clutch and links with the inner lock head body through a clutch. Meanwhile, a knob is the same in normal use method; and as an unlocking button is provided, when the external of the lock cylinder is damaged, the unlocking button is pressed down.
Owner:上海悦鑫祥安防科技有限公司

Single-phase electric furnace transformer

A single-phase electric furnace transformer is provided according to the basic principle of the invention, comprising: a single magnetic core, said magnetic core comprising two side columns and at least one main column; a main transformer, comprising a first primary side winding and a first secondary side winding which are disposed on said at least one main column, wherein said first primary side winding consists of a first winding and a second winding which are connected in series with each other; and a voltage regulating autotransformer, which is disposed on one of two side columns of said magnetic core, and which comprises a second primary side winding and a second secondary side winding, wherein said second secondary side winding is an adjustable winding having on-load tap switch, and said adjustable winding is connected in series between the first winding and the second winding of said main transformer. The direct effect on the regulating winding and the regulating switch by the over-voltage of the grid can be avoided in the single-phase electric furnace transformer of the invention, and the voltage between two terminals of the primary winding of the main transformer can be reduced. Furthermore, the winding of the voltage regulating transformer is disposed on the side column of the main transformer in the invention, so that the material and the transformer loss can be reduced, and the installation space of the transformer can be decreased.
Owner:ALSTOM TECH LTD +1

Fault water outburst and mud outburst simulation equipment and test method

ActiveCN106023761AEvenly loadedBlocking the path of travelEducational modelsPore water pressureEngineering
The invention relates to fault water outburst and mud outburst simulation equipment and a test method. The equipment comprises a shell, an axial loading system, a water pressure loading system, a confining pressure loading system and a fault mold, wherein the lower part of the shell is provided with an outlet portion, and the outlet portion is provided with a baffle plate provided with a plurality of holes; the axial loading system is used for carrying out axial loading on a filling medium of a fault and comprises a pressure head; the water pressure loading system is used for applying water pressure to the filling medium, and comprises a water inlet passage which penetrates through the internal part of the head pressure and is connected to a pressure chamber; the confining pressure loading system is used for applying confining pressure to the filling medium, and comprises an annular hydraulic chamber which is arranged in the shell along the circumferential direction, and the inner wall of the annular hydraulic chamber is made of an elastic material; the fault mold is arranged in an elastic annular sleeve in the pressure chamber, the outer wall of the fault mold is tightly attached to the inner wall of the annular hydraulic chamber, and the internal part form a space used for accommodating the filling medium of the fault; the oil storage amount in the annular cavity is increased so as to enable the inner wall of the annular cavity to expand inwards, the filling medium is extruded through the fault mold, and thus applying of the confining pressure is realized.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI

Architectural engineering construction on-site protective shed

The invention discloses an architectural engineering construction on-site protective shed which is composed of a basic structure and a force unloading structure. The basic mechanism is composed of a steel structure bracket and a fixed protective layer to form a supporting frame and the most basic head top protection measure; the force unloading structure comprises a first movable plate, a second movable plate and springs which connect the first movable plate and the second movable plate with the fixed protective layer, and thus an energy absorbing structure is formed; in addition, the force unloading structure further comprises long strip holes and sliding rods which are formed/arranged on the lower portions of the first movable plate and the second movable plate; and the stroke of a falling object is enlarged in collision through sliding of the sliding rods along the long strip holes, so that mutual interaction force in collision is reduced. The beneficial effects of the architectural engineering construction on-site protective shed can be known according to detail description of the scheme, the structure is simple, the design is reasonable, when the falling object in the high place falls down, the force unloading structure can dissolve the impact force of the falling object, and the situation that impact force of the falling object penetrates through the top protection is avoided.
Owner:赵吉生
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