152results about How to "Guaranteed normal expansion" patented technology

The invention relates to the technical field of cloud computing, in particular to a method for achieving a container supporting file system expansion. The method includes the steps that firstly, a block device is established and mapped to a container node; secondly, the block device is formatted and mounted to a container catalog; finally, a system is injected into the container catalog, and the container is started. The container established with the method can dynamically expand the file system in the following use process, and can also be conveniently migrated; the method can be used for providing a container for isolating running space for an application.

The invention provides a polytetrafluoroethylene millipore membrane for purifying PM2.5. The polytetrafluoroethylene millipore membrane is characterized in that the polytetrafluoroethylene millipore membrane is formed by a fiber of a three dimensional cross structure, wherein the polytetrafluoroethylene millipore membrane formed by the fiber of the three dimensional cross structure comprises following parameters: 5-8mum of thickness, 0.2-0.5mum of aperture, 80-90% of amount of porosity, 25-30MPa of intensity, 50-90% of resilience, 2-12m3 / (m2.min) of ventilating amount, and +-1.5mum of thickness tolerance. The polytetrafluoroethylene millipore membrane for purifying PM2.5 in the invention, has advantages of uniform fiber thickness, high amount of porosity, good resilience, uniform membrane thickness, multi-layer filtration, high filtrating efficiency, high and low temperature resistance, and high chemical resistance, can effectively filtrate dust with 2.5mum of particle diameter. The polytetrafluoroethylene millipore membrane for purifying PM2.5 in the invention, is suitable for application in a membrane coated filtrating material.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a hollow-structure carbon and silicon negative pole material used for a lithium ion battery. The inner side of the negative pole material is of a hollow structure, and a wall layer of the negative pole material comprises an inner wall and an outer wall; the inner wall is subjected to homogeneous phase compounding by nanometer silicon and a low carbon residue carbon source; the outer wall is a carbon coating layer formed by an original pyrolysis carbon source; the particle size of the nanometer silicon is 5-300nm; the softening point of the low carbon residue carbon source is less than 200DEG C, and a carbon residue rate is less than 40%; the thickness of the outer wall is 0.1-10 microns; thethickness of the inner wall is 1-8 microns. The invention designs the large hollow-structure carbon and silicon negative pole material used for the lithium ion battery, a large hollow part is reservedfor the volume expansion of silicon, the volume expansion problem of a silicon negative pole can be obviously solved, the formation of the large hollow structure is guaranteed by the low carbon residue carbon source, meanwhile, the nanometer silicon is subjected to homogeneous phase dispersion, a transmission channel and rate of electrons and lithium ions can be guaranteed, and the carbon coatinglayer coats the outmost layer so as to form a protection shell for isolating electrolyte.

The invention discloses a precise positioning and welding system for cutting teeth of a cutting head of a heading machine and a welding method thereof. The system comprises a first guide rail; one endof the first guide rail is fixedly connected with a support device for supporting and fixing the cutting head of the heading machine; an adjustable bracket capable of sliding in the length directionof the first guide rail is arranged at the other end of the first guide rail; and a welding gun for welding the cutting teeth of the cutting head of the heading machine is mounted on the adjustable bracket. The system controls a rotating motor connecting chuck to drive the cutting head to rotate; through sliding of a slide block on the corresponding guide rail, the distance from the welding gun toa cutting tooth base is controlled; a control system controls the oil inlet quantity and the oil outlet quantity of a hydraulic cylinder to guarantee extension of an extension rod, so that a liftingangle of the welding gun is changed, and the welding of the cutting teeth with different angles is realized; the connection between each cutting tooth and the cutting tooth base is controlled by the control system; and through movement and rotation of corresponding parts, no deviation is generated in any angle direction, so that the precise positioning is guaranteed, and the errors are reduced tothe greatest extent.

The invention discloses a forklift capable of moving omni-directionally. The forklift comprises a forklift body, a comprehensive control box, audible and visual alarm modules, wheels, scanners and fork modules. The forklift body is of a U-type structure formed by a left supporting leg, a right supporting leg and a cross beam. According to the forklift, long cargos can be forked, omni-directional moving can be achieved, and the forklift can flexibly operate in narrow space; due to the fact that the forklift is provided with a balance suspension, overall lifting can be achieved; due to the fact that the laser scanners are arranged at the skew diagonals of the forklift, the obstacle avoidance range can be conveniently set, non-contact obstacle avoidance decelerating and stopping are achieved, the laser scanners have the navigation and location functions, and the forklift can be automatically controlled conveniently in an unmanned workshop; the fork modules can guarantee adjustment of fork distance and fork stretching and contracting, and the two fork modules are used for supporting cargoes, so that higher stability is achieved; and meanwhile due to the fact that the forklift is arranged in a U shape, the long cargoes can be forked conveniently, and meanwhile stability of the gravity centers of the cargoes is guaranteed.

The invention discloses a method for one-stop concealed installation of a distribution box in wall building after construction. The method includes the following steps: 1. determining the position of a to-be-built wall body; 2. fixing a positioning tool of a box body; 3. installing the box body of the distribution box and fixing an installation position of the box body; 4. connecting an electrician wire pipe; 5. building the wall body; 6. mending a hole and cleaning construction waste; and 7. dissembling the positioning tool of the box body. According to the invention, the method herein has simple steps and high efficiency, can one-stop install the box body by positioning the installation height and the installation depth, is easy for follow up wall building, prevents the environment from being polluted by construction waste and powder which are caused by grooving the wall body, reduces construction difficulty of manual work, reduces labor and material consumption, and increases the stability of wall structure and construction quality of the wall body.

The invention discloses a normalized cDNA library of ocean medaka specific tissues and a preparation method thereof, belonging to the field of cDNA libraries. The library is prepared from one or more specific tissues of ocean medaka. The preparation method of the normalized cDNA library comprises the following steps: extracting total RNA of the specific tissues of the ocean medaka, synthesizing cDNA polynucleotide products, re-hybridizing after cDNA denaturation, selectively degrading double-stranded components, amplifying normalized cDNA components through PCR and inserting amplified products in carriers. The normalized cDNA library of ocean medaka specific tissues lays a foundation for greatly finding and researching the expressing genes of the ocean medaka, and is of a great significance to the deep research on the expressing markers of the ocean medaka specific tissues.

The invention provides a partial-zero-stiffness vibration isolator. By means of arrangement of a negative stiffness structure, according to the principle that positive stiffness and negative stiffnesscounteract, the stiffness, at the balance position, of the system approaches to zero, so that the inherent frequency of the system is greatly lowered; and in this way, the vibration isolation capacity is improved, low-frequency vibration isolation and ultra-low-frequency vibration isolation are achieved. The partial-zero-stiffness vibration isolator can bear large weight and can effectively lowerthe dynamic stiffness of the system, the inherent frequency of the whole system approaches to zero too, and therefore the partial-zero-stiffness vibration isolator is quite suitable for low-frequencyvibration isolation and even ultra-low-frequency vibration isolation. Compared with other vibration isolators, a cross arm structure, T-shaped sliding plates and guide rails can guarantee that extension and retraction of an extension spring are on the same horizontal line, so that the stability of a negative stiffness mechanism is guaranteed, and the unstable phenomenon existing when a main spring is compressed is avoided. The negative stiffness structure can be adjusted through fine movement of the T-shaped sliding plate on the guide rail, and meanwhile the height of the lower end face of the main spring can be adjusted in the vertical direction so as to be adapted to objects of different masses.

The invention discloses a full-automatic cement-based material convergent-divergent performance tester and a control method thereof. The tester consists of a singlechip, a humiture control system, a parameter setting system, an automatic positioning and locking system, a measurement system and a display system, and mainly comprises a heat insulation rigid box body, an electromagnetic locker, a heater, a semiconductor refrigerating fin, an ultrasonic humidifier, a humiture sensor, a positioning and locking device and a three-dimensional measurement device; the singlechip controls each system to operate compatibly, so that the test conditions can be controlled automatically and precisely, the automatic multi-point layering circulation measurement is realized, and the humiture and the relevant curve graph can be displayed dynamically in real time. The technical problems of difficulty in guaranteeing the testing conditions, top alignment difficulty, heavy workload, multiple personal error sources and capability of only measuring by a single point in testing the sulfate-resistant divergent performance of the traditional cement-based material are solved. The full-automatic cement-based material convergent-divergent performance tester and the control method thereof, which are provided by the invention, also can be used for tests of a cement mortar air shrinkage test, a concrete convergent-divergent test, a concrete swelling performance test and the like.

The invention discloses a formula of low-melting-point SMT soldering paste. The formula comprises the following two components in proportion by weight: 9-14% of paste soldering flux and 86-91% of spherical soldering powder. Dual planetary mixers sufficiently stir the two components uniformly, and then vacuum-pumping is performed to prepare the low-melting-point SMT soldering paste. Through a scientific formula design and an optimized production process, stable active ingredients and anti-oxidization components are added, so that the problem that a great number of tin balls are generated in reflux welding caused by easy oxidization is successfully solved, and the quality guarantee period of the low-melting-point SMT soldering paste is prolonged.

The invention provides a multi-way tree model-based page recommendation method and device. The method comprises the following steps of: analyzing all the pages of a service website to generate a multi-way tree model, wherein a root node of the multi-way tree model corresponds to a main menu page, a middle node of the multi-way tree model corresponds to a pull-down menu page, and leaf nodes of the multi-way tree model corresponds to function pages; carrying out word segmentation on a natural language input by a user by utilizing a word segmentation tool, so as to obtain feature words; and searching one or more function pages matched with the feature words from the multi-way tree model. Through the page recommendation method and device provided by the invention, the users can rapidly and correctly locate the to-be-accessed function webpages through simple natural languages.

The invention relates to the technical field of municipal equipment, and discloses a buoyancy type self-cleaning flood gate for an underground garage. The buoyancy type self-cleaning flood gate comprises a door frame, a floating gate body, a buoyancy cavity and a flood discharge cavity. The door frame is movably connected with the floating gate body, the floating gate body is arranged in the buoyancy cavity, and the buoyancy cavity communicates with the flood discharge cavity. According to the buoyancy type self-cleaning flood gate for the underground garage, when there is a light rain and water flow is relatively slow, the buoyancy cavity is a closed space, and a sediment accumulation phenomenon cannot occur. When there is a heavy rain, the floating gate body is triggered to stretch out to block water, one-time high-pressure water column cleaning can occur, so that less silt is accumulated at the bottom of the buoyancy cavity all the time, and it is ensured that the floating gate bodycan stretch out and draw back normally so as to guarantee normal passing of a vehicle. In addition, an inflation air bag carries out sealing protection on the top of the floating gate body, the siltand garbage are prevented from blocking the floating gate body, the force effect of the vehicle on the floating gate body is reduced, and location deformation of the floating gate body is reduced.

The invention belongs to refrigerator accessories, and particularly relates to an air door temperature controller which comprises a shell. an air inlet is formed in the upper portion of the shell, an air outlet is formed in the left side of the shell, a corrugated pipe is arranged in the right side wall of the lower portion of the shell, one end of the corrugated pipe is connected with a temperature sensing cylinder and a tail pipe connected with a capillary, and a driving arm is arranged at the other end of the corrugated pipe. The upper end of the driving arm is connected with an air door corresponding to the air outlet of the shell. A sealing liner is arranged between the air door and the air outlet, a reset piece is arranged between the air door and the driving arm, an adjustment cam is fixed to the left side of the lower portion of the shell, an adjustment plate is arranged on the adjustment cam, an adjusting screw is arranged on the adjustment plate, an adjusting nut is screwed to the lower portion of the adjusting screw, a tension spring is connected to the bottom of the driving arm, and the upper end of the tension spring is fixedly connected to the adjusting nut. The air door temperature controller is characterized in that the temperature sensing cylinder is filled with activated carbon. A containing cavity increases the air storage quantity in the tail pipe, the expansion and retraction quantity of the temperature sensing cylinder is guaranteed, and the opening degree of the air door is guaranteed.

The invention relates to a centrifugal tube structure for extracting DNA (deoxyribonucleic acid) by adopting a silicon bead method, belonging to the technical field of instruments for separating and purifying nucleic acid DNA or RNA (Ribonucleic Acid). The centrifugal tube structure comprises a centrifugal tube with a centrifugal tube cavity, an inner sleeve, and an impurity filtering mechanism, wherein a connecting band is arranged at the upper part of the centrifugal tube, and a plug cover is arranged at the tail end of the connecting band; the inner sleeve is arranged in the centrifugal tube cavity of the centrifugal tube, and a center hole is arranged at the center of the bottom wall of the inner sleeve; the impurity filtering mechanism is matched with the lower part of the inner sleeve and arranged in the centrifugal tube cavity along with the inner sleeve, and the plug cover is matched with an inner sleeve orifice of the inner sleeve. The centrifugal tube structure has the advantages that the loss of water-soluble DNA templates can be avoided; the impurity removal effect is desirable so as to favorably ensure the amplication of the PCR; the advantages of being convenient, fast and effort-saving to operate can be fully shown; and not only can the influence of TES and SLS on the concentration of adsorption liquid be prevented, the adsorption capability of silicon beads to the DNA can be ensured, but also original DNA templates can be retained so as to obviously improve the detection rate of low-copy biological detection materials.

The invention belongs to the technical field of optical equipment and particularly relates to a rotating telescopic LED photography lamp lens and assembly. The rotating telescopic LED photography lamplens comprises a lens and a lamp body, wherein the lens comprises a first shell, a second shell and a third shell; an optical accessory is arranged at one end of the first shell; the other end of thefirst shell is movably connected with one end of the second shell; the other end of the second shell is movably connected with one end of the third shell; a mounting hole is formed in the other end of the third shell and is movably connected with the lamp body; an LED light source is arranged on the lamp body; the LED light source and the optical accessory are oppositely arranged; the first shelland the third shell carry out telescopic movement along the second shell; and an anti-rotation limiting device is arranged between the first shell and the third shell. According to the rotating telescopic LED photography lamp lens and assembly, infinite adjustment of a divergence angle is achieved through rotating the second shell and changing the distance between the optical accessory and the LED light source, so that adjustment of illumination and the brightness area of an LED photography lamp is achieved; and the LED photography lamp can meet the shooting requirements of different scenes and is wide in application range and good in shooting effect.

The invention discloses a puncture outfit, which comprises a puncture rod, a sheath component and an exhaust port. The puncture rod is used for forming a through hole, and the sheath component sleevesthe outer side of the puncture rod and serves as a surgical channel. The sheath component comprises an inner tube and an outer tube, the outer tube sleeves the outer side of the inner tube to form aninterlayer, a thin end of the inner tube is provided with an opening, and the interlayer is internally provided with a smoke exhaust channel through which the opening and the vent port are communicated. Smoke is exhausted out of a surgical space when gas enters the surgical space, so that lens blurring caused by smoke can be eliminated, influences on sight of medical personnel are avoided, and surgical efficiency is improved. In addition, an air sac seal structure is delicate in design and reliable in sealing of surgical instruments in different sizes, and safety in product clinical application is achieved.

The invention discloses a PVC foaming plate extrusion die, and relates to the technical field of foaming plate extrusion dies. The PVC foaming plate extrusion die comprises a lower die plate and an upper die plate matched with the lower die plate, a flow-division buffer zone, a flow equalization zone and a forming die groove are arranged at the upper surface of the lower die plate in a mode of sequentially communicating with a feeding port, wherein the flow-division buffer zone comprises a buffer groove, a pair of L-shaped guide grooves communicating with the buffer groove are symmetrically formed at the positions, located on the two sides of the buffer groove, of the upper surface of the lower die plate, rectangular flow guide holes are linearly arranged on the opposite side surfaces of the pair of L-shaped guide grooves and at the ends, away from the flow-division buffer zone, of the pair of L-shaped guide grooves, a T-shaped flow guide groove communicating with the feeding port is formed in the lower surface of the upper die plate, the T-shaped flow guide groove communicates with the buffer groove and the pair of L-shaped guide grooves correspondingly, and a pair of L-shaped connection guide grooves are symmetrically fixed on the lower surface of the upper die plate. According to the PVC foaming plate extrusion die, through the lower die plate and the upper die plate which are designed, a foaming material enters the forming die groove in three directions, a PVC foaming plate is easier to form rapidly, so that the problem that the efficiency is low when an existing die isused for forming the PVC foaming plate is solved.

The invention discloses a chute for concrete pouring of transmission line foundation. The chute is characterized in that a chute body is mounted on the upper portion of a frame, a receiving hopper isarranged at one end of a fixing groove, a first telescopic sleeve is arranged inside the fixing groove in a sleeved manner, a curved plate at one end of a second telescopic sleeve is arranged in a curved plate at one end of the first telescopic groove in a sleeved manner, a curved plate of a third telescopic groove is arranged in a curved plate at the other end of the second telescopic groove in asleeved manner, one end of a first air cylinder is rotatably mounted on the lower portion of the fixing groove through a rotary plate, and the other end of the first air cylinder is connected with ahinged joint on the rotary plate on the lower portion of the third telescopic groove; a buckle plate is connected with a second air cylinder through a base. By the arrangement of the telescopic devices, the chute body can be adjusted in length according the needs of concrete pouring, the first telescopic groove, and the second telescopic groove and the third telescopic groove are connected throughthe curved plates, so that the telescopic grooves can shift on the horizontal direction, the frequency of chute transferring is reduced, and pouring efficiency is improved.

The invention relates to a telescopic spray booth, which comprises a spray booth body, a paint mist discharging pipeline and a paint mist elimination system, wherein the spray booth body comprises a supporting skeleton of the spray booth body, which is formed by a plurality of supporting frames and connecting pieces; flame-retardant PVC (polyvinyl chloride) cloth is arranged on the supporting skeleton; the flame-retardant PVC cloth covers the top and the side wall of the supporting skeleton so as to form the spray booth body of which a traction frame end is an open end; the paint mist discharging pipeline comprises an exhaust fan and first and second discharging pipelines; the paint mist elimination system comprises a water curtain paint removal device and an activated carbon paint removaldevice; an air inlet of the water curtain paint removal device is communicated with a paint mist discharging hole; the lower end of a barrel of the activated carbon paint removal device is in interference fit into an air inlet pipe section of the exhaust fan; the upstream end of the first discharging pipeline is communicated with an air outlet of the water curtain paint removal device; the downstream end of the first discharging pipeline is communicated with the upper end of the barrel of the activated carbon paint removal device; the upstream end of the second discharging pipeline is communicated with an exhaust pipe section of the exhaust fan; the downstream end of the second discharging pipeline vertically extends upwards to form a chimney.

A centrifugal sleeve tube structure used for separating and extracting DNA belongs to the field of equipment used for separation and purification of nucleic acid DNA or RNA. The structure includes a centrifugal tube. A connecting ribbon is formed on an upper part of the centrifugal tube. A plug cover is connected to an end of the connecting ribbon. An inner sleeve tube is disposed in a centrifugal tube chamber. A liquid discharge groove is formed on a bottom wall of an inner sleeve tube chamber and one side, which is opposite to the inner sleeve tube chamber, of the bottom wall is extended to form an inner sleeve connecting port. An impurity-filtering mechanism includes a transition sleeve cylinder and a coil. A transition sleeve cylinder matching joint is formed on a central position of the bottom of a transition sleeve cylinder chamber, wherein the center of the joint forms a liquid discharge hole. The coil is disposed in the transition sleeve cylinder chamber with one end being matched with the inner sleeve connecting port and the other end being matched with the transition sleeve cylinder matching joint. A coil chamber of the coil is filled with filtering materials. By means of the structure, a secondary pipetting process is unnecessary so that a water-soluble DNA template is free from losing; and an impurity-removing effect is excellent and a PRC amplification operation is ensured. The structure is convenient, quick to operate, is labor-saving, is good in the impurity-removing effect, is simple and is easy to manufacture.

The invention provides a shaft-mounted brake disc connecting device. A disc body and a disc hub are both provided with connecting parts which are the same in number and distributed in the same circumference; the connecting parts are provided with mounting holes; pressing plate connecting parts are provided with pressing plate mounting holes which are consistent with the mounting holes in the connecting parts of the disc body and disc hub in position and distributed in the same circumference; the mounting holes of the connecting parts of the disc body and the disc hub are correspondingly coincided; hollow pin connecting parts are inserted into the mounting holes; the pressing plate connecting parts are attached to the outer sides of the connecting parts of the disc body; the pressing platemounting holes of the hollow pin connecting parts are connected onto end columnar structures of the hollow pin connecting parts in a sleeving mode; and the connecting parts of the disc body are fixedonto the connecting parts of the disc hub through locking nut connecting parts. According to the shaft-mounted brake disc connecting device provided by the invention, by additionally arranging hollowpins with special structures, in the application process of a brake disc, circumferential rotation and dislocation do not occur among the disc body, a pressing plate and the disc hub, and meanwhile, when the disc body, the pressing plate and the disc hub are deformed or displaced in the radial direction due to temperature increase or accidental impact during braking of the brake disc, the risk ofdriving safety accidents caused by bolt breakage is reduced.

The invention discloses a thermal shrinkage and cold expansion type self-on-off cable sheath, and belongs to the field of cables. According to the thermal shrinkage and cold expansion type self-on-offcable sheath, through arranging a thermal shrinkage and cold expansion mechanism, when external temperature is high, a transverse temperature sensing rod is heated to expand, the upper ends of the two thermal shrinkage cold expansion plates are close to each other and are in a thermal shrinkage state. At the moment, the self-on-off heat-conducting rod is contacted with the heat-conducting block,the heat is dissipated to the outside of the outer sheath along the self-on-off heat conduction rod. Compared with the prior art, heat is directly dissipated from the heat conduction block to the outside of the outer sheath by taking air as a heat dissipation medium, the heat dissipation efficiency is obviously improved. When temperature is low in winter, the transverse temperature sensing rod shrinks, at the moment, the distance between the two thermal shrinkage and cold expansion plates is large, the two thermal shrinkage and cold expansion plates are in a cold expansion state, the self-on-off heat conduction rods do not make contact with the heat conduction blocks, heat at the heat conduction blocks is dissipated out of the outer protection layer through air serving as a medium, the heat dissipation efficiency is low, the temperature of the cable is effectively kept, and the normal power transmission efficiency at the low temperature is effectively guaranteed.

The invention discloses an electric fruit picker with a telescopic double-blade three-dimensional knife. The electric fruit picker comprises a telescopic rod and a fruit picking cup. A sleeve is arranged on a rod head of the telescopic rod, and the rod head is connected with the sleeve. The fruit picking cup is composed of a clamping jaw part, a semicircular cylinder part, a fan-shaped bottom, a motor mounting part and a connecting part, the connecting part is hinged to the sleeve through a hinge pin, the upper end of a support sleeve is open, and a motor is arranged in the support sleeve; a universal coupling is arranged on an output shaft of the motor; a through hole is formed in the semicircular cylinder part, and the universal coupling is connected with the double-blade three-dimensional knife; a clamping jaw is provided with a bayonet groove; the telescopic rod is internally provided with a winder, an electric wire penetrates out of the sleeve to be connected with the motor, and the other end of the electric wire is connected with a power supply. Accordingly, the power supply is provided through a battery arranged at the tail of the telescopic rod, the motor drives the double-blade three-dimensional knife to rotate at a high speed, fruit branches are cut off, fruits fall into an elastic nylon bag, the fruit falling speed is lowered, and the phenomenon that the fruits are damaged is avoided.

The invention discloses an auxiliary assembler for vehicle damping rubber. The auxiliary assembler for the vehicle damping rubber comprises a dust-proof cover and an upper connecting body, wherein multiple lower connecting holes are formed in the lower end of the dust-proof cover in a penetrating mode; two protection tables are symmetrically fixed to the side wall of the dust-proof cover; alarm mechanisms are arranged in the two protection tables; two window grooves are formed in the side wall of the dust-proof cover in a penetrating mode; filter screens are fixed to the inner walls of the two window grooves correspondingly; two pieces of mounting rubber are fixed to the inner wall of the dust-proof cover; and main buffer rubber is fixed to the side walls of the two pieces of mounting rubber jointly. The auxiliary assembler for the vehicle damping rubber provided by the invention has the advantages that by arranging a buffer spring, the upper connecting body can move up and down in the operation vibration process, so that a pressing plate and upper pressing rubber are driven to move downwards, and deformation of the buffer spring is mainly caused in the initial stage of movement; and then low-frequency small-amplitude vibration can be effectively avoided by utilizing the spring characteristics of the buffer spring, so that low-frequency stability which cannot be obtained by conventional rubber cushioning is obtained.

The invention relates to the technical field of medical equipment, and discloses a rehabilitation treatment auxiliary device for nursing of a leg fracture patient. The device comprises a bed frame, arubber ball is arranged at the upper end of an arc-shaped magnetic strip, an air bag strip corresponding to a sliding rod is arranged at the upper part of the bed frame, a moving rod corresponding toa variable resistor is arranged at the lower end of a magnetic ball, a rectangular magnetic block corresponding to a coil is arranged at the right part of an adjusting rod, an insulating soft cushionis arranged on the lower side wall in a leg bracket, and an electro-rheological body is arranged between the insulating soft cushion and an insulating soft layer. Arc surfaces are arranged on the twosides of the insulating soft cushion, therefore, the stress area of the leg supporting edge of the patient is increased; when the electro-rheological body is electrified, the electro-rheological bodyis electrified to become solid according to the characteristics of the electro-rheological body; and the structure can be suitable for leg patients with different sizes along with the consistent rotation of a lifting rod and the legs of the human body, so that the purposes of large supporting area and good treatment effect are achieved.

The invention discloses a buoy provided with an annular slide block system and capable of automatically resetting. The buoy comprises a buoy body, an anchor chain and an anchor block. The annular slide block system is arranged on the buoy body and comprises at least three movable blocks which are arranged on a perpendicular face and rotate around a rotation center. Slide block sleeves are arranged at the outer ends of the movable blocks. A compression spring is connected between every two adjacent movable blocks. The anchor chain sequentially penetrates the sliding sleeves of all the movable blocks and is fixed to the last movable block. A guide sleeve is arranged below the joint position of the circle where the sliding sleeves are located and the vertical tangent line. The anchor chain penetrates the guide sleeve. The length of the anchor chain can be automatically regulated through the buoy when the water level violently changes, and therefore it is ensured that extreme situations such as anchor block leapfrogging, buoy body submerging or drifting can not happen to the buoy; and buoy breaking or knotting caused by the fixed mooring length can be avoided as well, and it is ensured that the buoy drifting and gyration radii are within the allowable range.

The invention discloses an oval optical lens integrated polishing device. The oval optical lens integrated polishing device comprises a grinding bin; a shaft I is rotatably connected to the bottom ofthe inner wall of the grinding bin in a limited mode; a clamping plate I is fixedly connected to the top of the shaft I; an oval glass sheet is arranged on the upper surface of the clamping plate I; acover plate is fixedly connected to the inner wall, close to the top, of the grinding bin; a shaft II is rotatably connected to the lower surface of the cover plate in a limited mode; a clamping plate II is fixedly connected to the bottom of the shaft II; the oval glass sheet is located on the opposite faces of the clamping plate I and the clamping plate II; and a supporting frame is arranged onthe right side of the grinding bin. According to the oval optical lens integrated grinding device provided by the invention, through cooperative use of the above structures, the problems that in the actual use process, due to the fact that the actual use effect of a traditional grinding block is poor, it is difficult to conduct complete grinding on the arc-shaped outline of oval glass, the grinding efficiency is low, and complete grinding of the oval glass can be achieved only through multiple times of adjustment are solved, and inconvenience is brought to use.

The invention relates to a production method of a high-performance scale inhibiting material. The production method is characterized by comprising the following production steps: 1) wafer culture and production; 2) wafer and sphere surface optimization; 3) protective liquid encapsulation and glass coating crushing. According to the method, the spherical granules of specially-shaped polymer resin are used as a medium, the diameter is 0.5-1mm, the technologies of forming wafers, amplifying the wafers and activating the surfaces are adopted to develop the internationally leading high-performance physical scale inhibiting material with low-energy heterogeneous nucleation crystallization reaction, and the scale inhibiting material and related filters are massively produced. The technical scheme adopts the advanced physical scale inhibiting material, requires no energy consumption, and has the scale inhibiting and removing functions of a chemical product. Maintenance cost is reduced. Meanwhile, the chemical additive widely used for scale inhibiting and removing at present is avoided, and the pollution to water resources and environments is reduced. The service life can be three to five years.