48results about How to "Safe and convenient operation" patented technology

An improved support arm structure comprises a base joint, a primary arm assembly, and an extension arm assembly pivotally connected to the primary arm assembly; wherein the base joint is provided for connecting the primary arm assembly to a wall bracket; a rear end of the primary arm assembly is connected to the base joint; a front end of the primary arm assembly is connected to a middle joint; a first spring is provided in the primary arm assembly; a rear end of the extension arm assembly is connected to the middle joint; a front end of the extension arm assembly is connected to a front elongated joint; a second spring is provided in the extension arm assembly; whereby the support arm structure can be adjusted to any angles according to the requirements of a user and can be operated conveniently and safely.

The invention discloses a method and a device for testing delay of a detonator delay element, and solves the technical problems of danger, long time period, low efficiency and high testing cost in the traditional method for testing the delay of the detonator delay element. The method comprises the following steps of: filling a cut lead delay element into a steel detonator shell of which two ends are open and which has the length of 50-80mm, and fixing the position of the delay element in the detonator shell; arranging a detonating primer at one end of the delay element for exciting delay; putting the detonator shell filled with the delay element in a metal dark chamber; arranging a photoelectric sensor at the other end of the delay element; arranging a chronoscope, connecting an initial signal end with the detonating primer, and connecting a termination signal end with the photoelectric sensor; exciting the delay element by using the detonating primer; and reading data displayed by the chronoscope. By the invention, the delay of the detonator delay element is tested safely in a short time, the testing cost is low, and the measured data is accurate.

The invention discloses autologous-repair nutrient injection. The injection comprises the following main components: collagen and physiological saline. By further improvement, the injection can further comprise lidocaine, reduced glutathione, vitamin C, beta thymosin, and hyaluronic acid with low molecular weight. The invention solves the problems that absorbable injectants have no lasting effectand need repeated injection, and also solves the problem that the non-absorbable injectants have potential safety hazards. The injection completely performs autologous repair on the growing skin, causes no rejection and allergy, and has long timeliness and natural effect. The injection is most suitable for people who pursue safe and natural beautifying, people who seek to recover within a short period without influencing daily work and life, and people who seek to maintain their own characteristics with exquisite beautifying.

The invention relates to a method of synthesizing a super large micropore aluminium phosphate molecular sieve in a eutectic mixture. According to the method, the eutectic mixture is used as a medium of a synthesis reaction, and organic amine is added as an auxiliary template, so as to prepare an aluminium phosphate molecular sieve DNL-1 with a CLO structure confirmed by the International Zeolite Association. The preparation method employed by the invention is highly economical, safely and conveniently operated and environment-friendly. The molecular sieve prepared in the invention has good stability, extremely low skeleton density and wide application prospect in catalysis, gas adsorption and separation, etc.

The present invention relates to an agricultural square baler which increases work efficiency, and safely and conveniently performs a work without the necessity of additional equipment by not cutting hay, which is longer than the width of a pickup unit, in advance but by directly picking up the hay and making the hay into a square-shaped bunch. The square baler of the present invention includes: a towing unit which has a power transfer unit to be towed by being connected to an agricultural machine in the front of a frame; the pickup unit which is installed in one side of the front of the frame not to be in contact with the ground surface and picking up the hay; a transfer unit which is installed in the back of the pickup unit, and cutting and transferring the hay to a bale chamber; and a plunger which is installed in the back of the bale chamber to compress the hay into a square shape. An out plate, which is located in the outside of the pickup unit, is formed to be a size not to expose a cam track, which is combined to both sides of a driving axis and radially arranged, and to which a finger shaft having a plurality of pickup fingers, is installed. An entry hole which is cut so that the picked hay is not disturbed by the pickup unit is located in the outer wall of the transfer unit.

The invention discloses a steel rail grinding device and a use method thereof. The steel rail grinding device comprises a motor, a bracket, a grinding mechanism, a driving device, a first transmission mechanism and a second transmission mechanism, wherein the grinding mechanism is used for grinding an iron rail; the driving device is used for driving the bracket to move relative to the iron rail; the first transmission mechanism is used for connecting an output shaft of the motor with the grinding mechanism; the second transmission mechanism is used for connecting the output shaft of the motor with the driving device; the driving device is rotationally mounted on the bracket and can be used for being connected to the two sides of the iron rail in a contacting manner; the motor is mounted on the bracket; and the grinding mechanism can rotate relative to the bracket and can be arranged to move in a reciprocating manner. The steel rail grinding device disclosed by the invention has the advantages that the structure is skillful, reasonable and compact, the operation is convenient, and the iron rail can be efficiently ground.

The invention discloses a cement pile stabilizing device for a construction field. The cement pile stabilizing device includes a left half arc-shaped platform and a right half arc-shaped platform, oneside of the left half arc-shaped platform is movably connected with one side of the right half arc-shaped platform, one side of the inner wall of the left half arc-shaped platform and one side of theinner wall of the right half arc-shaped platform are correspondingly and fixedly connected with support plates, and both sides, away from one face of the inner wall of the left half arc-shaped platform, of the support plates are correspondingly and rotationally connected with first movable rods. According to the cement pile stabilizing device for the construction field, one side of the left halfarc-shaped platform is movably connected with one side of the right half arc-shaped platform, during cement piling, a cement pile can be stabilized, the stability during the piling is improved, rolling beads are embedded in the inner wall of an arc-shaped clamping plate to facilitate the falling of the cement pile, operation is more safe and convenient and quick, the cement pile is not prone to tilting, the top of one side of a column-shaped leg is fixedly connected with a shell, when the cement pile inclines, a stabilizing mechanism can be locked in time to stabilize the cement pile, and useis more convenient.

It is an objective of the present invention to isolate RNA from a sample containing nucleic acid by safe and convenient operations. As a result of intensive studies, inventors of the present invention have found that DNA is precipitated out by adding an organic solvent to a mixed solution of a sample containing DNA and RNA and a chaotropic agent, so that RNA remains soluble. The present invention relates to a method whereby a sample containing nucleic acid, a chaotropic agent, and an organic solvent are mixed, DNA is precipitated out, and the precipitate is separated from the mixed solution, such that RNA is isolated from the residual solution. In addition, in accordance with the present invention, RNA is allowed to come into contact with a silica-containing solid phase so as to be bound to the silica-containing solid phase without the addition of a reagent or the like to the residual solution. Further, it is also possible to isolate DNA from the precipitate. In accordance with the present invention, high-purity RNA can be isolated from a sample containing DNA and RNA by safe and convenient operations. In addition, it is possible to simultaneously isolate RNA and DNA from a single sample.

The invention relates to a vitrified refrigeration carrier and a use method thereof for preserving biological substances. The vitrified refrigeration carrier comprises an inner micropipe (3), an innercap (1), an inner ring (4), a film (2), an outer tube (7), an outer tube hole (6) and an outer cap (5), wherein the upper opening of the inner micropipe (3) is connected with the inner cap (1) and passes through the inner cap (1) to be communicated with the outside and closed by the outer cap (5), and the lower opening of the inner micropipe (3) is connected with the inner ring (4). The carrier avoids the direct contact between biological substances and liquid nitrogen, reduces liquid nitrogen pollution and has the advantage of rapid, safe and convenient operation.

The invention discloses an autogenous-repair small needle and a repairing method. The autogenous-repair small needle is characterized by comprising a needle head and a needle handle, wherein the needle head and the needle handle are integrally designed; a required stock solution is prepared into a nutrition solution by collegan, normal saline and a small amount of lidocaine solution through compounding. Compared with the prior art, the autogenous-repair small needle disclosed by the invention has the following advantages that (1) the problems that the effect of an absorbable injectant is not long and repeated injection is required are solved; (2) the problem that a non-absorbable injectant has potential safety hazard is solved; (3) skin in complete autogenous-repair growth has no rejectionand allergy phenomena, the timeliness is long, and the effect is natural; (4) the operation is convenient and safe, promoting and tightening effects superior to that of a lift surgery are achieved, the risk and the trauma of the surgery are avoided, and the recovery period is shortened to one week; (5) a collegan compounded solution plays a role in nourishing the skin, and also plays a role in softly stripping water power during operation.

The invention discloses a portable high-voltage grounding line operating device, and the device comprises a grounding clamp, an insulating rod, and an insulating handle. The device also comprises a core rod and a press block assembly. The insulating rod and the insulating handle are in rotating connection. The core rod is disposed in a central axle hole of the insulating rod in a sleeved manner. The front end of the core rod is in butt joint with a press block, and the tail end of the core rod is provided with a threaded rod. An inner side of the insulating handle is provided with a threaded tube. The threaded rod at the tail end of the core rod is connected with the threaded tube in the handle. According to the device provided by the invention, an operating rod has a movable part and a fixed part, and the movable part and the fixed part can relatively rotate so as to enable an aluminum grounding clamp and an aluminum grounding clamping head to clamp a bus. There is no need of a frictional force between the grounding clamp and the bus for assisting the clamping. The operation is very convenient and safe, and a grounding device does not need to press the bus during operation, so there is no damage caused to the bus.

The invention discloses a medical automatic collecting electric eyelash clipper composed of a cutter head cover, an electric device and an automatic collecting device. According to the medical automatic collecting electric eyelash clipper, the exterior of the cutter head end is protected by a cutting-shaving cover; when eyelashes are cut, the circular arc side of the cutting-shaving cover abuts against one of the eyelids of a patient, and the patient is prevented from being hurt; the sharpness of a cutter head is greatly reduced, accordingly, stabbing of the eyelids or the eyeballs of the patient is avoided, and the operation risk degree is greatly reduced; meanwhile, through the design of the electric device, eyelash-cutting operation is more convenient, fast and safe, the efficiency of eyelash-cutting operation is improved, the labor intensity of medical workers is relieved, falling eyelash crumbs are all collected by the automatic collecting device, so that infection caused by the eyelash crumbs is avoided, and the discomfort and fear of the patient are relieved; and the medical automatic collecting electric eyelash clipper has the advantages of being safe, efficient, and convenient to use.

The invention discloses a radioactive drug subpackaging hot cell. The radioactive drug subpackaging hot cell comprises an outer box body and a liner located in the outer box body. A protecting door, adrug feeding drawer and a drug discharging drawer are separately arranged on the front side wall of the outer box body, the protecting door corresponds to the liner, the drug feeding drawer and the drug discharging drawer are located below the liner, an operating hand hole is formed in the protecting door, an operating glove which stretches into the liner and corresponds to the operating hand hole is arranged on the front side wall of the liner, a drug feeding inner door and a drug discharging inner door are separately arranged on the bottom wall of the liner, the drug feeding inner door corresponds to the drug feeding drawer, the drug discharging inner door corresponds to the drug discharging drawer, and an air intake and exhaust system is arranged on the outer box body. The air cleanliness in the radioactive drug subpackaging hot cell can reach a hundred level, and it is unnecessary to concern that the inside purified environment is destroyed to affect the quality of the nuclide drug in the normal operation process. The radioactive drug subpackaging hot cell is reasonable in structural design and safe and convenient to operate, and functions of the radioactive drug subpackaginghot cell meet the industrial criterion.

The invention relates to the field of textile dyeing equipment, in particular to a jet device for supercritical fluid jet dyeing of yarns. According to the jet dyeing process, after installed in a supercritical fluid jet dying device, the jet device is connected with a supercritical fluid generation subsystem, a dye dissolution subsystem and a used fluid recovery and separation subsystem. According to the technical scheme, the jet device with or with no heating pipes comprises orifices, an orifice distribution pipe, high-pressure guide nozzles, a fluid distribution pipe, a fluid distribution pipe plug, low-pressure guide nozzles, a fluid inlet connecting pipe, a fluid outlet connecting pipe, a steam inlet connecting pipe and a steam outlet connecting pipe. By the use of the jet device, the problem that a high-pressure dyeing container is a necessity to the existing supercritical fluid jet dyeing device is solved; the jet device is simple in structure, safe and convenient to operate, good in dyeing uniformity and continuity, harmless to yarns under dyeing, and low in investment cost.

The invention discloses a synthetic method of flupirtine maleate A-type crystal compound and midbody. The synthetic method comprises the following steps of (1) synthetizing 2-amino-3-nitryl-6-p-fluorobenzyl aminopyridine by fluorobenzylamine and 2-amino-3-nitryl-6-chloropyridine organic alkali; (2) carrying out mixing and reduction reaction on the 2-amino-3-nitryl-6-p-fluorobenzyl aminopyridine, a catalyst and a solvent to obtain 2,3-diamido-6-p-fluorobenzyl aminopyridine; (3) reacting by the 2,3-diamido-6-p-fluorobenzyl aminopyridine, ethyl chloroformate and the organic alkali to obtain flupirtine, and continuing to add maleic acid aqueous solution to obtain flupirtine maleate-2-amino-6-(((4-fluorophenyl)methyl)amino)-3-pyridyl) ethyl carbamate maleate crude product; and (4) recrystallizing the 2-amino-6-(((4-fluorophenyl)methyl)amino)-3-pyridyl) ethyl carbamate maleate crude product by methanol or ethanol to obtain pure A-type crystal flupirtine maleate. The synthetic method has the beneficial effects that the water supply volume is reduced; the operation is safe; the reaction step is shortened; and the A-type flupirtine maleate is high in purity.

The invention relates to a cantilever type full-electric walking plate reinstallation vehicle which comprises two or more vertical columns (1), a long-rail supporting assembly (2), a cantilever mechanism (3), a mobile assembly (4), a clamp (5) and an electric control cabinet (6). The tops of the vertical columns (1) are provided with the long-rail supporting assembly (2). The side edge of the long-rail supporting assembly (2) is provided with the cantilever mechanism (3) which is provided with the mobile assembly (4). The bottom of the mobile assembly (4) is provided with the clamp (5). The electric control cabinet (6) is mounted on the outer sides of the vertical columns (1). The cantilever type full-electric walking plate reinstallation vehicle has the following advantages that firstly, the equipment is simple in structure and easy to assemble; secondly, the reinstallation vehicle can be remotely controlled and is convenient to operate and rapid and safe in operation; thirdly, working efficiency is improved; and fourthly, repair is convenient, and repair cost is low.

The invention relates to a disposable glove making machine used in restaurants and households and making groves capable of being instantly made and worn. The disposable glove making machine used for making disposable film gloves comprises a film pressing mechanism and a control mechanism, the control mechanism controls the film pressing mechanism to form the disposable gloves, receives instructions of glove users and provides the disposable gloves for the users to use. The disposable glove making machine has the advantages of instant making, instant wearing, hygiene and convenience in use and the like.

The invention relates to an LED lamp strip lamp mounting device convenient to disassemble. The LED lamp strip lamp mounting device comprises a fixing piece, at least one lamp strip buckle piece and anejection mechanism. The ejection mechanism is mounted on the fixing piece. The lateral side of the lamp strip buckle piece is provided with a clamping buckle for limiting. The fixing piece is provided with a clamping hole matched with the clamping buckle. A button switch for disabling the matching between the clamping buckle and the clamping hole is further arranged on the lamp strip buckle piece. When a lamp strip is mounted, the lamp strip buckle piece is detachably fixed to the fixing piece through the clamping buckle and the clamping hole, and the lamp strip buckle piece presses the ejection mechanism to enable the ejection mechanism to be in an energy storage state; and when the lamp strip is detached, the button switch on the lamp strip buckle piece is pressed, the matching betweenthe clamping buckle and the clamping hole is disabled, and the ejection mechanism ejects the lamp strip buckle piece. According to the LED lamp strip lamp mounting device convenient to disassemble, due to the ingenious cooperation of the fixing piece, the lamp strip buckle piece and the ejection mechanism, mounting and disassembly are very convenient. When the lamp strip is abnormal in installation or needs to be maintained, the lamp strip is very easy to take out without pulling, and components, elements and a circuit board are not damaged.

The invention discloses a garden exclusive use rainwater inlet cover plate. The cover plate comprises a square plate, a first filter screen plate, a conical bump, a V-shaped rod, a rectangular hole, awater leakage hole, an oblique plate, a thin rod, a water collecting shell, an enclosure frame, an auxiliary hole, a second filter plate, a fixing plate, strip holes and bolts. The cover plate has areasonable structure, conveniently props up thicker fallen leaves on the cover plate, is beneficial for the smooth inflow of rainwater into a rainwater well, effectively relieves the situation that the fallen leaves plug a water hole formed in the cover plate, and changes the way of opening the cover plate through traditional lift and lateral rotation; the cover plate is convenient and safe to operate, and avoids the safety hazard of the cover plate squeezing fingers; by means of loosening the two bolts on the same side of the two strip holes, workers can pull the whole cover plate from the other side, and accordingly the whole cover plate is moved to one side from a rainwater well inlet through sliding effects of the bottom of the whole cover plate and the rainwater well inlet.

The fireproof fuse comprises a shell fixedly installed in power distribution equipment, a sealing plate is hinged to an opening in the lower end of the shell, two connecting sleeves are integrally and symmetrically arranged on the two sides of the upper end of the shell, wiring pipes are fixedly arranged on the inner sides of the sleeves, and the wiring pipes are connected with the sealing plate in an integrated mode. The inner side of the wiring pipe is provided with a connecting cable, and the inner side of the connecting sleeve and the inner side of the wiring pipe are in threaded connection with wiring bolts. The fire extinguishing box is fixedly connected to the upper surface of the shell, an agent cavity is formed in the inner side of the fire extinguishing box, a condensation cavity is formed in the outer side of the agent cavity, the agent cavity and the condensation cavity communicate with each other, and meanwhile an air injection hole is formed between the condensation cavity and the shell. The fusible fireproof fuse capable of automatically replacing the wires can automatically replace the wires according to heat generated when the wires are broken, on-site operation of workers is not needed, meanwhile, automatic fire extinguishing and fire prevention can be achieved, and use safety is guaranteed.

The invention discloses a car emergency starting power supply and a car emergency starting method, relating to the technical field of vehicle emergency starting. The car emergency starting power supply comprises a shell (1), a cell (2), a chip-based main control circuit board (3), a charging socket (4), an emergency starting output connector (5), a two-core cable (6) for emergency starting, a switch (7) for emergency starting connection, a switch box (8) and a power monitoring prompt module, wherein the shell (1) is provided with a charge socket installing opening, an emergency starting output connector installing opening, an indicator lamp installing opening and a display screen installing opening, and the cell (2) and the chip-based main control circuit board (3) are respectively installed in the shell (1). The invention provides the optimized emergency starting power supply for performing real-time monitoring on the electric quantity of a main power supply of a vehicle; a button type connection mode is adopted, so a car emergency power supply connection manner in the past is greatly simplified, and the operation is more convenient and safer; a good popularization prospect and practical value are achieved.

The invention relates to a main mould transmission device for a channel profile steel bending machine. The main mould transmission device comprises a linear guide rail, a slide block, a movement body, a drive shaft, a mould sleeve, a main mould and a driving mechanism; the slide block is arranged on the linear guide rail; the movement body is fixed on the slide block; the movement body can freely slide on the linear guide rail through the slide block; the driven shaft is vertically arranged on the movement body fixedly; the module sleeve is arranged on the driven shaft though a driven bearing assembly; the main mould is arranged on the module sleeve and is fixed with the module sleeve through a flat key; the driving mechanism is arranged on the movement body and is used for driving the main module to rotate; the outer periphery of the main module is provided with a concave-convex groove of which the shape is matched with that of the channel profile steel; the concave-convex groove is meshed with the channel profile steel; and the main module rotates to drive the channel profile steel to rotate so as to finish the bending of the channel profile steel. The main mould transmission device has a simple, ingenious and reasonable structure, can bend and output the channel profile steel quickly, and can be operated conveniently and quickly, and greatly reduce the labor intensity of workers and improve production efficiency.

The invention discloses a cable terminal tail pipe and a connecting process thereof. The cable terminal tail pipe comprises a conical pipe and a circular pipe; a cable connecting part connected with the metal sheath of a cable is formed at the small-caliber end of the conical pipe; the cable connecting part is cylindrical; and a spiral groove matched with the outer circumferential face of the metal sheath of the cable is formed in the inner wall of the cable connecting part. When the cable terminal tail pipe is used, the cable connecting part is in threaded connection with the metal sheath ofthe cable; and the end, far away from the conical pipe, of the cable connecting part, is fixed to the metal sheath of the cable through cold welding. With the cable terminal tail pipe and the connecting process thereof of the invention adopted, the problems of water inflow, discharge, heating and the like caused by the phenomena of de-leading, breakage, oxidation and the like easily occurring in acable terminal tail pipe and a connecting method thereof in the prior art, and the problem that cable outer shielding and even main insulation are burnt to a certain extent due to high temperature ina lead coating process in the prior art can be solved. The cable terminal tail pipe has very high practical value.

The invention belongs to the field of fine chemical industry, and relates to a preparation method of a b-heterocyclic ketone compound. The method comprises the following steps of: activating a furan or thiofuran or indole or pyrrole type electron-rich heterocyclic compound by using a palladium catalyst; and performing an addition reaction with an alpha,beta-unsaturated ketone compound to obtain a b-heterocyclic ketone compound, wherein the obtained product has multiple biological activities and pharmacological activities; and a ketone compound of which the beta position is connected with furan can be transformed into beta-carbonyl carboxylic acid by oxidizing. A C-H activating method is applied to an 1,4-additon reaction, so that a simple and convenient method for synthesizing a heterocyclic ketone compound is determined. The method has the characteristics of cheap and readily available raw materials and catalyst, operating safety and convenience, mild reaction conditions, high reaction yield, high atom economy, and the like. The method has a high use value and high social and economic benefits.

The invention provides a graphene modified PA6 production device. The graphene modified PA6 production device comprises a charging machine, a crusher, a first storage tank, a second storage tank, a third storage tank, a conveyor, a mixing bunker, a twin-screw extruder, a band extruder, a cooling air dryer, a pelletizing machine, a first dryer, a transition tank, a second dryer and a packaging machine, wherein the charging machine is connected with an inlet of the crusher, an outlet of the crusher is connected with an inlet of the first storage tank, an outlet of the first storage tank, an outlet of the second storage tank and an outlet of the third storage tank are separately connected with an inlet of the conveyor, and an outlet of the conveyor is sequentially connected with the mixing bunker, the twin-screw extruder, the band extruder, the cooling air dryer, the pelletizing machine, the first dryer, the transition tank, the second dryer and the packaging machine. The invention further provides a graphene modified PA6 production process. The device and the process have the following beneficial effects that 1) the design is reasonable, and the operation is safe and convenient; 2) the transition tank is arranged behind the first dryer, the second dryer is reserved, and indexes such as moisture content of slices can meet requirements; 3) the product quality is good.

The invention discloses a monopole three-position electric disconnecting switch for a locomotive and a using method thereof.The switch comprises a frame body, a first wiring board, a second wiring board, a third lower wiring board, a third upper wiring board, an isolating knife component and an electric operating mechanism, the first wiring board forms a first wiring position, the second wiring board forms a second wiring position, a third wiring position is arranged between the third lower wiring board and the third upper wiring board, each of the first wiring board, the second wiring board, the third lower wiring board and the third upper wiring board comprises a double-layer insulating rod and a wiring board, and the frame body is provided with a plurality of travel switches for detecting the rotation position of the isolation knife component; the method comprises the following steps: operating connection conduction of the first wiring position and the third wiring position; operating the second wiring position and the third wiring position to be connected and conducted; and operating the first wiring position and the second wiring position to be disconnected from the third wiring position in a three-position state. The monopole three-position electric disconnecting switch is small in size and capable of ensuring that three stations are switched in place so as to meet the requirements of locomotives.