68results about How to "Difficult to grasp" patented technology

The invention discloses a mechanical system of a multi-purpose electric bath chair. The mechanical system comprises a back posture adjusting mechanism, a chair lifting mechanism, a chassis moving mechanism, a pedal plate protecting mechanism and a brake mechanism, wherein for the back posture adjusting mechanism, one motor drives two parallel four-bar mechanisms, and the angle between a backrest of the bath chair and a seat board can be adjusted, so that the sitting posture and the lying posture can be converted; for the chair lifting mechanism, the height of chair can be adjusted, and the chair lifting mechanism comprises an electric push rod connecting mechanism and a lifting parallel four-bar mechanism; the chassis moving mechanism is the support component of the whole bath chair, the bath chair adopts universal wheels and directional wheels, and thus moving and steering are convenient; the pedal plate protecting mechanism can be unfolded and folded through a rotation mechanism; forthe brake mechanism, the braking for the rear wheels, namely, the directional wheels is realized through one set of crank-link mechanism. The device belongs to the intelligent nursing type multi-purpose bath chair, the functions including flexible movement, free lifting, posture adjustment, brake locking and the like are realized, the burden of nursing staff can be alleviated, and the work including transporting of old people, bathing, massaging and the like can be assisted.

The invention relates to a coaxiality deviation measurement digital display device and a coaxiality deviation calculation method. The distances between the central axis of one axis in two different positions and the central axis of another axis and the distance between the two positions are utilized to calculate to obtain coaxiality deviation values of the two axes in a given coordinate system. The coaxiality deviation measurement digital display device mainly comprises a measurement device, a storage calculation chip and a display screen, wherein distance parameters and calculation formulas are stored in the storage calculation chip. By using the coaxiality deviation measurement digital display device and the coaxiality deviation calculation method, the problem of the adjustment of the coaxiality between the two axes of which the central axes are parallel is mainly solved. The distances a and b between the central axis of the axis 1 in the two different positions A and B and the central axis of the axis 2 are measured, and the distance D between the two different positions of the axis 1 is given, so as to derive a formula 1 and a formula 2 (see the specification). Two distance values Lx and Ly, i.e. the distance values, in the coordinate system formed by a straight line X which passes the two different positions A and B of the axis 1 and a straight line Y which passes the axis 2 and is perpendicular to the straight line X, can be calculated by utilizing the formulas. Thus, the coaxiality deviation values Lx and Ly of the axes 1 and 2 in the given coordinate system can be obtained.

The invention discloses a large-depression-angle long-distance coal seam gas pressure testing drill hole cement mortar hole-sealing method, and belongs to the technical field of coal mine safety production. The method comprises the following steps that two sets of baffles are designed through two pressure-measuring tubes, each set of the baffles is formed by fixing and binding a fixed baffle disk,a movable baffle disk and a rubber mat through iron wires, long-distance fixed-point plugging is carried out by combination expansion cotton yarns and coarse sand pockets, and the problems of slurryleakage and baffle breaking through are solved; the problem that water accumulation in the drill hole is not prone to being discharged can be solved by inserting a grouting tube into a drill hole; andwhen secondary hole sealing is carried out, dry sand is first blown into by compressed air, the expanded cotton yarns and accelerating agents are added into an orifice section to be mixed, and the drill hole can be sealed effectively. The large-depression-angle long-distance coal seam gas pressure testing drill hole cement mortar hole-sealing method is a scientific, reliable, efficient and economical grouting hole-sealing technology, can effectively perform the large-depression-angle long-distance drill hole sealing of coal seam gas pressure testing, and ensures the accuracy of coal seam gaspressure; and the large-depression-angle long-distance coal seam gas pressure testing drill hole cement mortar hole-sealing method has distinctive characteristics that the material source is convenient, the processing is simple, the cost is economical, the method is easy to master for workers, and the method can be popularized widely in the coal mine use.

The invention discloses engine cylinder body full-automatic vertical electro brush plating equipment with X, Y and Z three-dimensional slide guides to perform accurate positioning, wherein the working procedure and the steps are controlled by a microcomputer procedure. The equipment comprises a 'plating solution providing and recovering system' which automatically injects according to the working procedure and storing in a classifying and recovering way with a solution dividing pan; a 'centered plating head' which is installed on a main spindle box on the Z slide guide, is provided with electrolysis material, and is connected with a sealed chamber; a nonmetal 'insulating platform' with the multifunction of insulating, self-weight multi-position sealing, plating solution collecting and positioning work piece bearing; a cylindrical 'temperature-increasing system' which is hung behind a shield cover for heating cleaning water before and after changing the solution; a 'temperature-reducing system' of a microcomputer and a program control electrical cabinet large-power brush plating electric source; an 'exhausting device' for volatilizing gas of the plating solution; and a 'vertical electro brush plating center' which performs one-off clamp multi-work position electro brush plating repair for worn and broken 'multi-pore workpieces' and can be continuously produced with large power and on a large scale.

The invention discloses a magnetizing inrush current discrimination method based on equivalent excitation impedance frequency domain character of a transformer, which discriminates magnetizing inrush current by the equivalent excitation impedance frequency domain character of the transformer. The discrimination method comprises the steps of: indicating the equivalent excitation impedance of the transformer as Z (n) after N point sampling discretization in one power frequency cycle, wherein the equivalent excitation impedance of the transformer changes along with time; carrying out frequency domain analysis on Z (n) and using the ratio of DC component amplitude absolute Z (0) to fundamental wave component absolute Z (1) and fixed-ratio threshold fixed value Kzd to carry out magnetizing inrush current discrimination. The discrimination method discriminates magnetizing inrush current and short circuit fault current according to the character of the excitation impedance of the transformer in the frequency domain when the magnetizing inrush current occurs to the transformer, which is simple and clear, does not need to consider system parameters and transformer parameters, can be automatically adapted to various types of transformers and the various connecting manners of the transformers , as well as the changes of system operation manner and system structure, reliably lock when inrush current occurs to the only transformer, and can act quickly when fault occurs to a region in which transformer fault and magnetizing inrush current exit simultaneously.

The invention discloses a surface processing technology of a mechanical product, and in particularly relates to a method for cladding a wear-resisting layer on the surface of the runner hub of a hydraulic turbine, belonging to the electromechanical technical field of hydropower stations. The method comprises the following steps of: carrying out metal processing on the sphere of the runner hub; cleaning the surface of the runner hub; fixing the runner hub on a positioner, and adjusting a bead welding zone to be in a horizontal position; carrying out submerged arc strip bead welding on the sphere, and adjusting the turnover angle of the rotary table of the positioner in real time during welding, so as to maintain a weld pass in the horizontal position; carrying out metal processing on the surface of bead welding; and carrying out penetrant flaw detection and ultrasonic flaw detection. According to the method for cladding the wear-resisting layer on the surface of the runner hub of the hydraulic turbine, good quality of a bead welding layer can be ensured, the bead welding layer is even in thickness and smooth in transition, a bead welding work layer subjected to bead welding does not generate cracks and is not easy to peel off, the dilution rate of the base metal of the bead welding layer is low, and the bead welding layer has good wear resistance.

A portable electronic device comprises a housing and a chip card ejecting mechanism. The housing has a mounting portion defined therein. The ejecting mechanism includes a holder and a controlling module. The holder is slidably accommodated in the mounting portion of the housing. The controlling module includes a button and an ejecting element. The button releasably secures with the holder in the mounting portion. The ejecting element resistes against the holder to provide an elastic force for driving the holder slid. When the button is pressed, the holder is released and the ejecting element ejects the holder outwardly from the mounted portion of the housing.

A vandal resistant sports goal net clip, or fastener, for attaching nets to the frames of sports goals. The fasteners are difficult to remove by hand and require the use of a separate tool to attach and remove the net from the frame. Sports goal assemblies and methods of securing nets to goal frames are also disclosed.

The invention discloses a DTMF remote audio unlocking system. The system utilizes wireless communication transmitted DTMF audio information to carry out remote control of an electronic lock. The system comprises an electronic lock, wherein opening and closing of the electronic lock are controlled by reception and comparison of a DTMF audio cipher and the electronic lock at least comprises a pick-up element for receiving the DTMF audio information, a decoding module, wherein the decoding module is used for deciphering and decoding the audio information received by the pick-up element so that concrete digital code information is obtained, and a mobile phone as a remote control terminal, wherein the remote control terminal at least comprises a cipher sending module for carrying out wireless output or loudspeaking playing on the DTMF audio cipher information. The electronic lock is used in the express delivery industry, realizes express item reception at any time by remote control, has timeliness and improves delivery efficiency.

The invention relates to a convenient and rapid pressure grouting method adopting an anchor rod, and belongs to the technical field of foundation engineering. The method comprises the steps that 1, drilling is carried out in a preset position; 2, a primary grouting pipe, a secondary grouting pipe, an exhaust pipe and the anchor rod are wrapped tightly with a woven bag and are inserted into a drilling hole, wherein the distance between the top of the woven bag and the drilling hole is 2.0-3.0 m, the distance between the bottoms of the primary grouting pipe and the secondary grouting pipe and the bottom of the drilling hole is 150-250 mm, and in the length of a anchorage section, a plurality of slurry outlets are formed in the side wall of the secondary grouting pipe, and the opening end atthe bottom of the secondary grouting pipe and the slurry outlets are sealed through adhesive tape; 3, the diameter of the tightly-wrapped woven bag is the same as the diameter of the drilling hole; 4,hole sealing is carried out; 5, primary grouting is carried out; and 6, secondary high-pressure grouting is carried out. According to the convenient and rapid pressure grouting method adopting the anchor rod, effecting grouting and reinforcement of backfilling soil, loose soil and soft clay bodies can be ensured to be realized through the anchor rod, and the anti-pulling force of the anchor rod can be guaranteed. The method has the advantages that waste can be reutilized, general adaptability is achieved, the manufacturing cost is low and the construction is simple and convenient.

The invention relates to a compound fertilizer with a double-control netting characteristic and a preparation method thereof. The compound fertilizer with the double-control netting characteristic consists of a fertilizer and a fertilizer nutrient lose control agent in a weight part ratio of (2-8):(80-98). The invention also provides the preparation method of the compound fertilizer with the double-control netting characteristic, which comprises the following steps of: mixing the fertilizer and the fertilizer nutrient lose control agent in the weight part ratio of (2-8):(80-98); and granulating to prepare the compound fertilizer with the double-control netting characteristic. The compound fertilizer with the double-control netting characteristic has the shape of a flocculent sponge after being dissolved in water, and has the effects of netting fertilizer nutrients, controlling nutrient loss, performing exchange absorption and precipitating harmful heavy metal at the roots of crops.

The invention discloses a low-temperature conversion and measurement method of chlorine isotope in chlorohydrocarbon. The method comprises the steps of A. carrying out oxidation dechlorination treatment on organic matters, namely A-1. injecting pure water into a closed reaction vessel, sequentially feeding ferrous sulfate powder and sodium persulfate solution, shaking up, and standing still; A-2. injecting chlorohydrocarbon into the reaction vessel below the liquid level, then feeding hydrogen peroxide, and rapidly covering an airtight cover of the reaction vessel; A-3. putting the reaction vessel into an ultrasonic apparatus, and carrying out an ultrasonic reaction for 5-12 hours within the temperature range of 50-65 DEG C, wherein the power of the ultrasonic apparatus is 750W or higher; and A-4. putting the reaction vessel onto an ultraviolet analyzer, opening short wave and long wave at the same time, and irradiating for more than 3 hours under the power of 25-35W; B. carrying out inorganic chlorine extraction and purification; and C. carrying out ion exchange preparation and thermal ionization mass spectrometry measurement and correction. According to the low-temperature conversion and measurement method, chlorohydrocarbon can be efficiently converted and purified under the lower temperature condition, and the contrast correction of the constant value of the organic monomer chlorine isotope of the chlorohydrocarbon and international SMOC can be finally realized conveniently and speedily.

The present invention discloses a method for synchronously separating chloroplast and mitochondria of a high purity plant. The method comprises: A, adding leaf to a CIB buffer liquid, grinding, filtering sequentially with a 70 [mu]m filtration screen, a 35 [mu]m filtration screen and a 15 [mu]m filtration screen, and carrying out centrifugation on the filtrate for 5 min at 200*g to remove tissue residue and cell debris; B, carrying out centrifugation on the filtrate for 10 min at 1000*g, and collecting chloroplast-rich precipitate; C, collecting the supernatant after the centrifugation in the step B, filtering with a 5 [mu] filtration screen, carrying out centrifugation on the filtrate for 10 min at 2000*g, removing the precipitate, carrying out centrifugation on the supernatant for 10 min at 17000*g, and collecting mitochondria-rich precipitate; D, washing the precipitates respectively with a washing buffer liquid, and digesting with DNase I to remove background genome contamination; and E, carrying out centrifugation on the chloroplast precipitate for 10 min at 1000*g, removing the supernatant, carrying out centrifugation on the mitochondrial precipitation for 10 min at 17000*g, removing the supernatant, and washing the precipitates with a washing buffer liquid.

The invention discloses a method for detecting sterility of photo-thermo-sensitive genic male sterile rice according to a multiphase and multi-sample method. The method comprises the steps of sowing to-be-detected sterile rice seeds every 7-15 days in multiple periods; when the growth process of partial plants which are sowed in the first period of the sterile rice seeds reaches a pollen mother cell meiosis period, namely a pulvinus peacetime, culturing sterile rice plants which are sowed in 3-4 continuous periods for a preset number of days in a certain processing environment and then taking the sterile rice plants out; recording the taking-out time of each sterile rice plant from the processing time, recording the heading data of a single ear of the sample, sampling, sleeving the single ear by a plastic bag, performing microscope examination, and testing a self-fertilized seed setting rate in maturation; and determining two important indexes of the sterility of the photo-thermo-sensitive genic male sterile rice, namely a critical sterility inducing temperature and a fertility alternation sensitive period according to the number of days between single-ear processing of the sample and heading, a pollen microscope examination result and a sleeving self-fertilized seed setting result by means of an index of number of days between each period in ear development and heading. The method has advantages of easy operation, and more accurate and more complete detecting result.

A mechanical thrombectomy apparatus for removing a clot from a vessel includes an elongate inversion support catheter having a distal end opening, an elongate puller extending within the support catheter, and a knitted tractor tube extending over an outer surface of the support catheter, inverting into the distal end opening of the support catheter, and attached to the elongate puller at a first end within the support catheter, wherein the portion of the knitted tractor tube extending over the support catheter comprises a wire forming a helical spiral of alternating teardrop shaped-links each having a rounded apex, wherein each link is connected to two adjacent links so that the apex of each link is on an outward-facing surface of the tractor tube, wherein the links flare outward from an outer wall of the support catheter when the puller is pulled proximally within the support catheter.

The invention discloses a low-temperature conversion and determination method of chlorine isotopes in chloro herbicide. The method comprises the following steps: A, dechlorinating the chloro herbicide at low temperature; A-1, feeding pure water into a closed reaction vessel, and injecting the chloro herbicide to be below the liquid surface, and radiating the liquid by utilizing high-energy ultraviolet light; A-2, adding ferrous sulfate powder and hydrogen peroxide; A-3, placing the reaction vessel in an ultrasonic instrument to have ultrasonic reaction for 5h to 10h in the temperature range of 80 to 100 DEG C; A-4, placing the reaction vessel in the strong ultraviolet light to be radiated for 3h; B, extracting and purifying inorganic chlorine; C, ion exchanging preparation and thermo ionization mass spectrum determination and correction: C-1, coating the graphite of a thermo ionization mass spectrum instrument with the high-purity cesium chloride solution obtained in the previous step, carrying out the thermo ionization mass spectrum testing, simultaneously receiving the intensity of ion peaks with m/e of 301 and 303 by utilizing a faraday cup, and obtaining a final theta 37Cl' value through calculation. By adopting the method, the chloro herbicide can be high-efficiently converted and purified under low-temperature condition, and finally a constant value of the isotope of organic monomer chlorine can be conveniently realized.

A electronic device (100) includes a removable chip card (40) for carrying information, comprise a housing (10) and a ejecting mechanism (30). The housing (10) defines a chamber (12) and a base (14) formed adjacent to the chamber. The chamber (12) is used for accommodating a battery (20) therein. The base (14) is used for receiving the chip card (40) therewith. The ejecting mechanism (30) is mounted in the housing (10) and includes a sliding member (32) and an elastic member (36). When the battery (20) is accommodated in the chamber (12), the chip card (40) is secured between the sliding member (32) and the battery (20). When the battery (20) is removed from the chamber (12), the elastic member (36) biases the sliding member (32) to eject the chip card (40) outwardly from the base (14).

The invention belongs to the technical field of biology, and particularly relates to a method for obtaining sheep endometrial epithelial cells and stroma cells, a separation and purification method and an application. A large amount of the sheep endometrial epithelial cells and stroma cells are simply, conveniently and rapidly obtained by using a tissue block culture method, and separation parts are changed. According to the method, uterine horns are longitudinally cut open, round uterine cotyledons on the uterine horns are sheared off after the uterus horns are unfolded, the uterine cotyledons are clamped into a 2 mL centrifuge tube by tweezers, and then the uterine cotyledons are sheared into 1 mm<3> small blocks in the centrifuge tube by small scissors. The method is simpler and more convenient. Meanwhile, the epithelial cells and the stroma cells are purified through time difference digestion in the method. Due to different tolerance of the stroma cells and the epithelial cells totrypsin, the stromal cells are easier and faster to digest, and purification is carried out by utilizing time difference. The method is simpler and easier to master than an existing digestion and sieving technology.

The invention relates to a network user group security management technology realized based on a proprietary algorithm, which can realize multiple isolation of a network, isolate the network into a plurality of communication user groups according to specific requirements, and effectively reduce the communication action domain of network users. Illegal communication is isolated. And the method canbe applied to development of upper computer application management software according to specific requirements, so that unified configuration and unified monitoring management of a plurality of isolated user groups are realized.

The invention provides a short link generation method based on the 55 system. The 55-system-based short link generation method comprises: configuring a 55-system conversion condition in advance; receiving a long link transmitted by a user system, storing the long link in a primary key self-increasing table, and converting the long link into a 55-nary character string based on the 55-nary conversion condition; generating a short link based on the 55-system character string; and presetting a domain name, and outputting the domain name and the short link. According to the scheme, the short link can be quickly generated, the efficiency is high, and the generated short link is relatively good in confidentiality and not easy to master by other people, so that the scheme of the invention is relatively high in security.

The separation holding member 36 includes a grip portion 36h for detaching the separation holding member 36 from the cartridge B, the grip portion 36h being configured so as to assume a first shape of protruding in a direction of separation from a surface of the cartridge B when the cartridge B mounted with the separation holding member 36 is detached from the apparatus main body A and to assume a second shape in which a gap with the surface of the cartridge B is smaller than in the first shape when the cartridge B mounted with the separation holding member 36 is mounted to the apparatus main body A.

The invention discloses an upper cover assembly. The upper cover assembly comprises a connecting structure and an upper cover structure, the connecting structure comprises an inner connecting piece and an adjusting ring which rotatably sleeves the inner connecting piece, and the side wall of the inner connecting piece is further provided with a containing groove and a clamping groove which are opposite to each other and communicated with the two ends of a guide groove respectively; a guide piece which is contained in the guide groove and a locking piece which is contained in the containing groove are arranged at one end of a lining piece, and the other end of the lining piece is provided with a clamping piece corresponding to the clamping groove; a movable part which is clamped between thelocking part and the adjusting ring is further arranged in the containing groove, a groove is formed in the adjusting ring, and the adjusting ring is rotated until the movable part is partially contained in the groove; the upper cover structure is pushed to drive the lining piece to slide along the guide groove so that the clamping piece can be separated from the clamping groove, and the upper cover structure can be turned over conveniently to open a liquid injection hole. The invention further discloses an atomizer with the upper cover assembly and an electronic cigarette.