42results about How to "Not easy to get wrong" patented technology

The invention relates to a magnetic disk device mapping method in a distributed memory system. According to the magnetic disk device mapping method, a virtual device unique identification file is set, and the mapping relationship between virtual device unique identifications and virtual devices in the distributed memory system is achieved. The magnetic disk device mapping method comprises the specific steps that firstly, a newly arranged magnetic disk device is added to the distributed memory system according to the virtual device unique identification file; secondly, according to the virtual device unique identification file, the magnetic disk device added to the distributed memory system is mounted after a computer is started; thirdly, a faulty magnetic disk device is replaced according to the virtual device unique identification file. Compared with the prior art, the magnetic disk device mapping method has the advantages of being simple, easy to implement, flexible, reliable and the like.

The invention discloses a commodity management method which comprises the following steps that a commodity two-dimensional codes are arranged on commodities and commodity information is stored in the commodity two-dimensional codes; shelves are provided with shelf two-dimensional codes and shelf information is stored in the shelf two-dimensional codes; when the commodities are put into a warehouse, the shelf two-dimensional codes on the shelves and the commodity two-dimensional codes on the commodities are scanned, and the commodities and shelves are associated and stored in a server, and commodity in-inventory states are sent to the server; when the commodities are put out of the warehouse, the shelf two-dimensional codes on the shelves and the commodity two-dimensional codes on the commodities are scanned, and the commodity information, commodity out-inventory states, the shelf information, and shelf states are sent to the server. As it beneficial for the warehouse to store the commodities, the location of the commodities can be quickly determined and it is convenient to find the commodities subsequently because just the corresponding shelf is required to be found out. The shelf positions are relatively fixed and the commodities changes a lot, just the commodity two-dimensional codes and the shelf two-dimensional codes are required to be scanned when the commodities are put into or out of the warehouse. A scanning device may scan the commodities quickly and accurately, thereby saving time and manpower.

The invention discloses a jacking system for a closure section of a continuous rigid frame bridge and a jacking deviation rectifying method. The jacking system is composed of a top plate jacking system and a bottom plate jacking system. The top plate jacking system comprises two sets of top plate embedded bases arranged at the ends of two cantilever beam sections of the continuous rigid frame bridge correspondingly, top plate rigid supporting structures supported between the two sets of top plate embedded bases and a top plate jacking mechanism. The bottom plate jacking system comprises two sets of bottom plate embedded bases arranged at the ends of the two cantilever beam sections correspondingly, bottom plate rigid supporting structures supported between the two sets of bottom plate embedded bases and a bottom plate jacking mechanism. The jacking deviation rectifying method comprises the steps of (1) measurement of position deviation of the cantilever beam sections, (2) adjustment of elevation deviation of the cantilever beam sections, (3) deviation rectifying adjustment and (4) longitudinal jacking. The jacking system is simple in structure, reasonable in design, easy and convenient to construct and good in using effect, the jacking deviation rectifying process of the cantilever beam sections on the two sides of the closure section can be completed easily, conveniently and rapidly, and the rectifying requirements of lateral deviation and reverse deviation of the cantilever beam sections can be met.

The invention discloses a portable test tube stand. The portable test tube stand comprises a test tube stand body, wherein a framework is arranged at the outer side of the test tube stand body; an upper fixed plate is arranged at the inner side of the upper end of the framework; a middle fixed plate is arranged at the inner side of the middle of the framework; a bottom plate is arranged at the bottom of the framework; cover plate brackets are arranged between two placement holes on the upper fixed plate; cover plates are arranged at two sides of the upper ends of the cover plate brackets; buttons with the quantity which is the same as that of bases are arranged at one side of the bottom plate; sleeves are arranged at the lower sides of the bases; a buckle is arranged at one side of each sleeve; a connecting plate is arranged at the lower end of each sleeve; resetting springs are arranged at two ends below each connecting plate; fixed plates are arranged at the bottoms of the resetting springs; inner sleeves are arranged at the upper sides of the fixed plates; cover plates are arranged at the upper side of the test tube stand and has an effect of shielding a test tube opening, so that the volatilization of a reagent is stopped and impurities are prevented from entering test tubes; an ejection device and a button combination are arranged at the bottom of the test tube stand and ejection is controlled through the buttons, so that the test tubes are rapidly and conveniently taken out and are not easily taken by mistake.

The invention discloses a histochemistry method capable of fast displaying a latex vessel of a bark of a rubber tree. The histochemistry method comprises the following steps: a) copping the bark of the rubber tree into section tissue blocks with the dimension of 0.5cm (length) * 0.5cm (width) and placing the section tissue blocks into a centrifugal tube containing stationary liquid; b) opening a lid of the centrifugal tube, placing the centrifugal tube into a glass dryer connected with a vacuum pump and exhausting air for 1-2min; c) exchanging fresh stationary liquid and rinsing for 3 times by buffer solution after fixing for 4-6h at room temperature, wherein the rinsing lasts 30min at each time; d) transiting the material in the step c) to protective agents with different concentration gradients from the stationary liquid; e) embedding the material in the protective agent with the highest concentration in the step d) into an OCT (Ornithine Carbamyl Transferase) embedding agent, placing the material on a refrigeration platform at -20 DEG C and condensing for 20min; f) taking out the material in step e) and sectioning the material by a conventional frozen section method; g) sticking sections by a common glass slide at room temperature; h) mounting the sections with a mounting medium and observing the sections by a fluorescence microscope. The histochemistry method disclosed by the invention has the advantages that the operation is simple, labor and land are saved, the repeatability and the universality are good, and batch screening can be realized.

The invention provides a microbial sample pretreatment intelligent robot, and solves the technical problems of large volume, low efficiency, poor applicability and accident susceptibility in existingmicrobial sample pretreatment intelligent robots. The microbial sample pretreatment intelligent robot is equipped with a test tube uncapping recovery part, a culture dish inoculation part and a culture dish labelling recovery part. The test tube uncapping recovery part is equipped with a test tube uncapping handling device, a test tube clamp recovery device and a test tube body holding device. A sample uncapping visual device is disposed above the test tube clamp recovery device, and one side of the test tube body holding device is equipped with a first sensor and a scanner. The microbial sample pretreatment intelligent robot provided by the invention is widely applicable to microbial inoculation, clinical practice, chemistry and other technical fields, etc.

The invention provides an auxiliary experiment device for measuring the radius of the curvature of a lens through a Newton ring. According to the device, eight LED monochromatic light sources with different wave lengths are adopted, light emitted by the light sources is coupled into a light guide fiber, and an outlet is provided with a beam expanding lens and frosted glass. A CCD camera is arranged in front of an eye lens of a reading microscope, the CCD camera is connected with a displayer through an interface, and the Newton ring can be directly displayed on the displayer. The LED monochromatic light sources with different wave lengths are turned on and used as incident light sources of an experiment, a Newton ring device is lightened after the light is reflected by a semi-reflective mirror, the Newton ring is displayed on the displayer through the CCD camera, and measurement can be conducted by using the reading microscope. According to the auxiliary experiment device, LEDs are used as the monochromatic light sources, the service life is long, preheating is not needed when experiments are conducted, lightness adjustment is convenient, eight monochromatic lights with different wave lengths can be obtained, the experiments are rich in content, student data are not prone to being similar, the Newton ring is directly displayed on the displayer through the CCD camera to be observed and measured, convenience is brought, and effort is saved.

The invention provides a shower faucet body with mixed cold and hot water, and belongs to the technical field of valves. The shower faucet body resolves the problems that an existing cold and hot water faucet body is not visual in operation, high in manufacturing cost and the like. The shower faucet body with mixed cold and hot water is installed on a water pipe, a valve body is a cylinder, two handles are installed on the side face of the cylinder, water draining and closing, water mixing and water outflow direction changing are all completed through four valve blocks overlapped together, when a water mixing handle is rotated, water can be drained and closed or the temperature of water can be regulated, and when a water diversion handle is rotated, a unique hole in the upper surface of a water diversion valve block is aligned to or staggered with a hole in a water outflow valve block to change the water outflow direction. According to the shower faucet body with mixed cold and hot water, the handle for changing and regulating water and the handle for changing the water outflow direction are both on the same valve body, visual and clear understanding is achieved, and mistakes do not easily occur; cold water is always drained at first when water is drained, and hot water is always closed at first when water is closed, so on one hand, hot water is saved, namely energy and water saving is achieved, and on the other hand, people are not easily scalded; the shower faucet body is simple in structure and low in manufacturing cost.

The invention discloses a top plate ejecting system for ejecting closure section of a continuous rigid frame bridge and a construction method thereof. The top plate ejecting system comprises two groups of top plate pre-buried bases, a rigid support structure and an ejecting mechanism, wherein the two groups of top plate pre-buried bases are respectively arranged at two cantilever beam section ends of the continuous rigid frame bridge; the rigid support structure is supported between the two groups of top plate pre-buried bases; the ejecting mechanism is used for ejecting the rigid support structure; each group of top plate pre-buried bases comprises a left top plate pre-buried base and a right top plate pre-buried base arranged on the same cantilever beam sections; the rigid support structure is a longitudinal ejecting support structure or an oblique ejecting support structure; one end of the rigid support structure is a fixed end, and the other end of the rigid support structure is an ejecting end. The construction method comprises the following steps: step one, constructing the top plate pre-buried bases; step two, mounting the ejecting mechanism; and step three, mounting the rigid support structure. The top plate ejecting system is reasonable in design, simple and convenient to construct and good in using effect; the process of ejecting the cantilever beam sections of the closure section can be simply, conveniently and quickly completed; and the requirements on correction of lateral deviation and torsion deviation of the cantilever beam sections can be met.

The invention relates to a united reaping machine which can be excellently operated by fingers of a hand holding an operating bar to, with less error operations, adjust height of a reaping device, height of the machine and gesture of the machine body, and to perform the steering united reap of the machine body, and which can improve the efficient of reaping work via the united reaping machine. A face at front side of a holding part (70) of the operating bar (59) is provided in parallel with an ascending switch (SW1) and a descending switch (SW2) both for ascending and descending operations of the reaping device in up and down directions; a position between the ascending switch (SW1) and the descending switch (SW2) is provided with an error operation preventing projection part (71) which projects more than pressing operational surfaces of the switches. In addition, the same projection part (73) is also provided at the position between a machine height ascending switch (SW3) and a machine height descending switch (SW4) which are provided on the surface of left side of the holding part (70).

The invention discloses a bottom plate jacking system for jacking a closure section of a continuous rigid frame bridge and a construction method of the bottom plate jacking system. The bottom plate jacking system comprises two sets of bottom plate embedded bases arranged at the ends of two cantilever beam sections of the continuous rigid frame bridge correspondingly, rigid supporting structures supported between the two sets of bottom plate embedded bases and a jacking mechanism used for jacking the rigid supporting structures. Each set of bottom plate embedded bases comprises a left bottom plate embedded base and a right bottom plate embedded base distributed on the same cantilever beam section. The rigid supporting structures are supporting structures for longitudinal jacking or supporting structures for oblique jacking. One ends of the rigid supporting structures are the fixing ends, and the other ends of the rigid supporting structures are jacking ends. The construction method comprises the steps of (1) construction of the bottom plate embedded bases, (2) mounting of the jacking mechanism and (3) mounting of the rigid supporting structures. The bottom plate jacking system is reasonable in design, easy and convenient to construct and good in use effect, the jacking process of the cantilever beam sections on the two sides of the closure section can be completed easily, conveniently and rapidly, and the correction requirements of lateral deviation and reverse deviation of the cantilever beam sections can be met.

The invention discloses a smoke-induction emergency illuminating lamp. The smoke-induction emergency illuminating lamp comprises a lamp body (1), a large lamp body (2), a small lamp body (3), an information transceiver, a controller, an accumulator (4), a smoke sensor (6) and a laser generator (5). The information transceiver, the controller and the accumulator (4) are all arranged in the lamp body (1); the small lamp body (3), and the large lamp body (2) and the smoke sensor (6) are arranged at the front end of the lamp body (1); and a laser through hole is formed in the front end of the lampbody (1), the laser generator (5) is fixed to the lamp body (1) through a lifting motor (51), and the controller is connected with the accumulator (4), the information transceiver, the large lamp body (2), the small lamp body (3), the smoke sensor (6) and the laser generator (5). According to the smoke-induction emergency illuminating lamp, an escape route is guided through lasers, and smoke-induction pre-warning is achieved.

The invention discloses a glass slide box, which comprises a box body with cut-through front and back. The box body is internally provided with several partition boards dividing the internal space into several interlayers. Each interlayer is internally inserted with a drawer equipped with a glass slide slot. The back end of the partition boards are provided with baffle edges preventing the drawers from sliding out. The side walls of the drawers are provided with card slots for insertion of cards. The glass slide box provided in the invention places sample glass slides separately, so that overlying of the glass slides is impossible. Also at the time of glass slide taking, the drawers where the corresponding sample glass slides are placed are pushed out, taking of samples by mistake can be less likely, and the risk of misdiagnosis by doctors due to wrong sample taking can be avoided.

The invention discloses a method for controlling movement of a worktable of an automatic image measuring instrument, which comprises the following steps of (1) performing image focusing for obtaining a clear image; (2) setting an anchor point through pressing down a middle button of a mouse when a cursor is at a proper position of an image area; (3) pressing the middle button of the mouse and moving the cursor, generating a direction vector arrow which is composed of the anchor point and the current cursor above the image, wherein the vector arrow performs real-time change along with position change of the cursor, thereby forming an effect which is similar with an effect in pulling a rubber band; (4) making the worktable move in a manner that the length of the vector arrow after calibration is utilized as speed and the arrow direction is utilized as a movement direction, and changing the movement speed and the movement direction in real time according to the change of the vector arrow; and (5) releasing the middle button of the mouse for stopping movement of the worktable. According to the method of the invention, movement direction and movement speed are defined by means of the direction and the magnitude of the vector arrow generated by pulling, and manual input of the speed is not required. Furthermore the movement speed and the movement direction can be changed in real time, thereby facilitating definition for characteristic positions of a to-be-measured workpiece and improving measurement efficiency.

The invention discloses a peak-forward suppressor for a high-performance liquid chromatography analysis device and an analysis method, comprising a ferrule and a core arranged inside the ferrule, the core is a hollow structure and A cavity is provided, and a sieve plate is provided at the end inside the core, and the sieve plate communicates with the cavity. Also disclosed is a high-performance liquid chromatography analysis device and method using the peak shape forward suppression, so that when the sample solvent carrying the sample flows through the cavity, the sample solvent will be diluted by the mobile phase. Advantages of the present invention: it can effectively suppress the peak shape leading phenomenon caused by "mismatch between sample solvent and mobile phase", solve the trouble caused by "sample solvent", improve peak shape, increase column efficiency, and improve separation Spend. It greatly reduces the interference caused by the sample solvent during analysis, preparation and method development, and greatly saves manpower and material resources.

The invention relates to the technical field of rebar connecting and fixing in constructional engineering, in particular to a conical barrel clamping piece type rebar connecting piece. The conical barrel clamping piece type rebar connecting piece comprises a first conical barrel, a second conical barrel, a first clamping piece, a second clamping piece and a third clamping piece. The conical barrelclamping piece type rebar connecting piece is formed by splicing the first conical barrel, the second conical barrel, the first clamping piece, the second clamping piece and the third clamping piece,the mounting mode is simple, the structure is firm, and the quality is stable; straight holes and conical holes are formed inside the first conical barrel and the second conical barrel, lateral clamping grooves are formed in the side walls of one ends of the first conical barrel and the second conical barrel, a first clamping piece structure, a second clamping piece structure and a third clampingpiece structure are fixed between a rebar and the conical barrels by using mutual meshing of splicing sawtooth grooves in the lateral clamping grooves in the first conical barrel and the second conical barrel, a cylindrical extrusion mechanism is formed at the rebar connecting end through arc-shaped meshing racks in the clamping pieces and pressed into the surface of the rebar, and the connectingfirmness between the rebar and the connecting surface of the rebar is improved.

The invention discloses a histochemistry method capable of fast displaying a latex vessel of a bark of a rubber tree. The histochemistry method comprises the following steps: a) copping the bark of the rubber tree into section tissue blocks with the dimension of 0.5cm (length) * 0.5cm (width) and placing the section tissue blocks into a centrifugal tube containing stationary liquid; b) opening a lid of the centrifugal tube, placing the centrifugal tube into a glass dryer connected with a vacuum pump and exhausting air for 1-2min; c) exchanging fresh stationary liquid and rinsing for 3 times by buffer solution after fixing for 4-6h at room temperature, wherein the rinsing lasts 30min at each time; d) transiting the material in the step c) to protective agents with different concentration gradients from the stationary liquid; e) embedding the material in the protective agent with the highest concentration in the step d) into an OCT (Ornithine Carbamyl Transferase) embedding agent, placing the material on a refrigeration platform at -20 DEG C and condensing for 20min; f) taking out the material in step e) and sectioning the material by a conventional frozen section method; g) sticking sections by a common glass slide at room temperature; h) mounting the sections with a mounting medium and observing the sections by a fluorescence microscope. The histochemistry method disclosed by the invention has the advantages that the operation is simple, labor and land are saved, the repeatability and the universality are good, and batch screening can be realized.

The invention provides a fixed safety belt suspension device for maintenance of substation power equipment. The fixed safety belt suspension device comprises a vertical pipe, a safety belt hanging ring and a fixing structure, the vertical pipe and the power equipment are fixed together through the fixing structure, the fixing structure and the vertical pipe are detachably fixed together, the fixing structure comprises a wire pole fixing structure and a cross rod fixing structure, and the two fixing structures share one vertical pipe and can be mutually replaced in use. The fixing structure andthe vertical pipe can be detached, thus when different power equipment is maintained, different fixing structures can be selected to be matched with the vertical pipe so as to achieve the purpose ofmaintenance, a suspension device is fixed to a wire pole or a cross rod during current maintenance, thus the fixing structure specifically comprises the wire pole fixing structure and the cross rod fixing structure, different maintenance situations can be met, the types and models of the fixing structures can be well reduced, and the problems that the cost is increased due to the excessive types and models, and storage is inconvenient are solved.

The invention discloses an emergency lighting lamp. The emergency lighting lamp comprises a lamp body (1), a headlamp (2), a lamplet (3), an information transceiver, a controller, a storage battery (4) and a laser generator (5). The information transceiver, the controller and the storage battery (4) are arranged in the lamp body (1). The lamplet (3) and the headlamp (2) are arranged at the front end of the lamp body (1). A laser through hole is formed in the front end of the lamp body (1). The laser generator (5) is fixed to the lamp body (1) through a lifting motor (51). The laser generator (5) is located in the laser through hole, and meanwhile, the laser generator (5) is slidably connected with the laser through hole. The controller is connected with the storage battery (4), the information transceiver, the headlamp (2), the lamplet (3) and the laser generator (5). According to the emergency lighting lamp, an escape route is guided through laser, and escaping is convenient.

The invention discloses a logistics and warehousing goods shelf with a simple structure. The top of each section of single bars is welded with extension bars welded at both sides of the single bars vertically, and a limit stop is vertically welded with the edges of an upmost placement plane; the placement planes are arranged among the extension bars correspondingly; horizontal partition plates are arranged between the corresponding single bars, and used for dividing the placement planes, and the edges of the upmost placement plane are welded with the limit stop; four corners of the bottom of the lowermost placement plane are welded with universal wheels which facilitate of moving the goods shelf. The goods shelf has the advantages of low cost, easy production and use, long service life, high space utilization rate and easy management, and is applied to large-scale warehouses; a convenient means of goods access is provided, and the contradiction between the utilization of aisle space and freight transport in high rises is solved effectively; the method and principles can be applied to various fields, and circulating transport or storage equipment with different purposes and structures are manufactured; and thus, the goods shelf is wide in application prospects and high in economic value.

The invention discloses a lunch box difficult to miss. The lunch box comprises an upper box body and a lower box body. A drawer is mounted in the lower box body, a charging plug is formed in the frontside wall of the lower box body, a circuit board is mounted in the front side wall of the lower box body, a fingerprint lock is mounted on the front side wall of the lower box body, a lock hole is formed in a position, corresponding to the fingerprint lock, of the outer side wall of the drawer, the upper box body integrated with the lower box body is arranged above the lower box body, and a box cover is mounted on the periphery of the upper box body. The invention provides the lunch box difficult to miss, wherein the lunch box can carry chopsticks and spoons and are difficult to be mistakenlytaken.

The invention discloses a luggage consignment management system based on gravity induction, which includes a server, a security inspection system and a user terminal, the server includes a broadcast module, a central processing unit a, a wireless transmission module a and an alarm module; the security inspection system includes a security inspection system Platform, annular luggage island, central processor b and wireless transmission module b, the security check platform and annular luggage island are all equipped with a gravity sensing module; the user terminal includes an input module, central processor c and wireless transmission module c; The wireless transmission module a may be signally connected to the wireless transmission module b and the wireless transmission module c respectively. This system matches the passenger luggage weight information with the passenger information, so that passengers are not easy to take the wrong luggage during the process of checking in and picking up luggage, and can notify passengers of the location of their luggage, so that passengers can know the location of their luggage in time, and it is convenient for passengers to take it Luggage, increasing the efficiency of luggage retrieval.

The invention discloses a durable student water bottle capable of being marked. The durable student water bottle is composed of a bottle body and a lid with a connected handle. The durable student water bottle is characterized in that both the lid and the bottle body can be provided with marks; the bottle body adopts a flat type concave special structure so that the entire water bottle is firm anddurable, the space utilization rate is high, and the water bottle is convenient for receiving water, drinking and carrying; the bottle body is made of bullet-proof glass resin, thereby the bottle body is cheap but excellent, non-toxic and odorless, the bottle body is resistant to abrasion and drop, and good physical stability and chemical resistance are realized; meanwhile, the surface is subjected to ultrasonic treatment, and the inner and outer walls of the bottle body are not oleophilic, so that the water bottle is easy to clean; the lid adopts a clamping type sealing structure, and the lid can be tightly screwed down without additionally arranging a flexible washer which can prevent water leakage and is easy to lose; the periphery of the lid adopts a multi-salient point and multi-bumpEnglish letter buffer structure, and drop resistance is realized; the connected handle of the lid is arranged in the concave part of the mouth of the bottle body, so that the lid and the bottle bodyare connected all the time, and the lid is not lost alone any more.

The invention discloses a self-adaptive emergency lamp. The self-adaptive emergency lamp comprises a lamp body (1), a big lamp (2), small lamps (3), an information transceiver, a controller, a storagebattery (4), a smoke sensor (6) and a laser generator (5). The information transceiver, the controller and the storage battery (4) are all arranged in the lamp body (1). The small lamps (3), the biglamp (2) and the smoke sensor (6) are arranged at the front end of the lamp body (1). The front end of the lamp body (1) is provided with a laser device through hole. The laser generator (5) is fixedto the lamp body (1) through a lifting motor (51). The controller is connected with the storage battery (4), the information transceiver, the big lamp (2), the small lamps (3), the smoke sensor (6) and the laser generator (5) correspondingly. The self-adaptive emergency lamp further comprises an ultrasonic detector. The ultrasonic detector is connected with the information transceiver. The self-adaptive emergency lamp guides an escape route through laser and meanwhile dynamically programs the escape route through the ultrasonic detector to facilitate escape.

The invention relates to a united reaping machine which can be excellently operated by fingers of a hand holding an operating bar to, with less error operations, adjust height of a reaping device, height of the machine and gesture of the machine body, and to perform the steering united reap of the machine body, and which can improve the efficient of reaping work via the united reaping machine. A face at front side of a holding part (70) of the operating bar (59) is provided in parallel with an ascending switch (SW1) and a descending switch (SW2) both for ascending and descending operations ofthe reaping device in up and down directions; a position between the ascending switch (SW1) and the descending switch (SW2) is provided with an error operation preventing projection part (71) which projects more than pressing operational surfaces of the switches. In addition, the same projection part (73) is also provided at the position between a machine height ascending switch (SW3) and a machine height descending switch (SW4) which are provided on the surface of left side of the holding part (70).

The invention discloses a peak shape delaying forward suppressor for a high-performance liquid chromatographic analysis device and method. The peak shape delaying forward suppressor comprises a cutting sleeve and a suppressor core arranged in the interior of the cutting sleeve, the suppressor core is of a hollow structure and the interior of the suppressor core is provided with cavities, the end portions of the interior of the suppressor core are provided with screen plates, and the screen plates are communicated with the cavities. The invention further discloses the high-performance liquid chromatographic analysis device and method which use the peak shape delaying forward suppressor, and when sample solvents with samples flow through the cavities, the sample solvents can be diluted by the mobile phase. The peak shape delaying forward suppressor and the high-performance liquid chromatographic analysis device and method using the peak shape delaying forward suppressor has the advantages that the peak shape delaying forward phenomenon caused by the mismatching of the sample solvents and the mobile phase can be effectively suppressed, the interferences brought by the sample solvents are solved, the peak shape is improved, the column efficiency is increased, the separation degree is improved, the interferences brought by the sample solvents when the analysis, the preparation and the method development are carried out are greatly reduced, and man power and material resources are significantly saved.

The invention discloses a jacking system for a closure section of a continuous rigid frame bridge and a jacking deviation rectifying method. The jacking system is composed of a top plate jacking system and a bottom plate jacking system. The top plate jacking system comprises two sets of top plate embedded bases arranged at the ends of two cantilever beam sections of the continuous rigid frame bridge correspondingly, top plate rigid supporting structures supported between the two sets of top plate embedded bases and a top plate jacking mechanism. The bottom plate jacking system comprises two sets of bottom plate embedded bases arranged at the ends of the two cantilever beam sections correspondingly, bottom plate rigid supporting structures supported between the two sets of bottom plate embedded bases and a bottom plate jacking mechanism. The jacking deviation rectifying method comprises the steps of (1) measurement of position deviation of the cantilever beam sections, (2) adjustment of elevation deviation of the cantilever beam sections, (3) deviation rectifying adjustment and (4) longitudinal jacking. The jacking system is simple in structure, reasonable in design, easy and convenient to construct and good in using effect, the jacking deviation rectifying process of the cantilever beam sections on the two sides of the closure section can be completed easily, conveniently and rapidly, and the rectifying requirements of lateral deviation and reverse deviation of the cantilever beam sections can be met.

The invention provides a fixed centre structure of a cage winch. The fixed centre structure comprises a centre sleeve, a centre shaft, a tension disc and a pressing plate; the centre shaft is rotationally connected to the interior of the centre sleeve; the tension disc is rotationally connected to the outside of the centre sleeve and rotationally connected with the centre sleeve through a first bearing; after installation and cooperation of the centre sleeve and the tension disc, an installation groove for installing the first bearing is formed; the first bearing is in interference fit with the installation groove, an inner ring of the first bearing is installed on the centre sleeve and limited by a first steel cable baffle ring installed on the centre sleeve, and an outer ring of the first bearing is installed on the tension disc and pressed by the pressing plate; the installation groove is completely sealed through the pressing plate; and O-shaped sealing rings for sealing lubricating grease of the first bearing are arranged between the pressing plate and the centre sleeve as well as between the tension disc and the centre sleeve. According to the fixed centre structure of the cage winch, after long-term production operation, the tension disc can still flexibly rotate, and the jamming phenomenon is avoided.