83results about How to "Guaranteed Regularity" patented technology

The invention provides a negative electrode material, a preparation method thereof and a battery. The negative electrode material comprises graphite and a carbon layer located on at least part of the surface of the graphite; the particle surface and the particle tangent plane of the negative electrode material are respectively tested by adopting a Raman spectrum, the ratio of the peak area of a characteristic peak D in the range of 1300 cm <-1 > to 1350 cm <-1 > to the peak area of a characteristic peak G in the range of 1500 cm <-1 > to 1580 cm <-1 > is ID / IG, the ID / IG ratio of the particle surface of the negative electrode material is A, the ID / IG ratio of the particle tangent plane of the negative electrode material is B, and 1.22 < A-B < = 2.10. The particle surface of the negative electrode material is tested through an atomic force microscope, a # imgabs0 # test area is randomly selected on the particle surface of the negative electrode material, the arithmetic mean value of the absolute value of the height deviation relative to the reference surface in the test area is S nm, and S is larger than or equal to 15 nm and smaller than or equal to 60 nm. The negative electrode material provided by the invention can comprehensively improve lithium ion transmission kinetics, first coulombic efficiency and cycle performance.

The invention provides an automobile wire harness terminal plugging processing device, belongs to the technical field of wire harness terminal processing, and aims to solve the problem that the use and attractiveness of a terminal are affected due to the fact that the outer walls of the two sides of the terminal protrude outwards after the terminal for plugging a wire harness is vertically pressed by an existing processing device. A mounting seat and a conveying belt are arranged on a mounting platform, an auxiliary supporting plate is arranged on the conveying belt to clamp an automobile cable, a lifting sliding rail and a movable carrying plate are arranged on a reinforcing base plate to be connected with a stamping rod, a placing groove is formed in a fixing seat below the stamping rod to clamp a terminal body, and an auxiliary trimming part is arranged on the outer wall of the stamping rod; during working, a conveying belt conveys a cable, an electric telescopic rod and a suction cup are matched to enable the automobile cable to be inserted into a sleeve hole of a terminal body for insertion connection, a stamping rod is pressed downwards for pressing fit, rotation is achieved through matching of a spiral groove of an adjusting sleeve and a guide protruding block, then a cam is deflected through gear transmission, and a trimming wheel rolls and flattens the protruding side wall of the terminal; neatness and attractiveness are guaranteed, and product quality is improved.

A portable range finder belongs to the technical field of range finders and comprises a portable range finder body, a rear seat is arranged on the rear side of the portable range finder body, rotating shafts are rotatably arranged on the left side wall and the right side wall of the rear seat, supporting frame bodies are mounted on the outer walls of the rotating shafts, the supporting frame bodies are rotatably attached to the side walls of the rear seat, and the supporting frame bodies are in a first state and a second state. According to the portable range finder, the screen of the portable range finder main body can be shielded by means of the unfolded folding shielding shed, so that the phenomenon of light reflection caused by direct irradiation of sunlight on the screen of the portable range finder main body is avoided, a worker can read the reading on the screen of the portable range finder main body more conveniently and clearly, the accuracy of a ranging result is ensured, and the working efficiency is improved. The supporting frame body can open and support towards the rear side relative to the rear seat, so that the supporting function of the portable range finder main body is realized, and the portable range finder main body can keep an angle for measurement for a long time without other tools.

The invention discloses a grooved belt pulley casting mold and a casting method thereof, and relates to the technical field of belt pulley casting. Comprising a bottom plate, a lower template is fixedly arranged in the middle of the top surface of the bottom plate, and an upper template is arranged above the lower template; the left side and the right side of the lower die plate are provided with a pair of semicircular die plates, and the upper die plate, the lower die plate and the pair of semicircular die plates are mutually closed to form a grooved belt pulley casting cavity. The upper mold plate, the lower mold plate and the pair of semicircular mold plates are arranged to be mutually closed to form the grooved belt pulley casting cavity, the combined mold plate is provided, the combined mold plate is more convenient to mount, dismount, clean and the like, and the combined mold plate is matched with a servo motor, a connecting rod assembly and other components, so that the production efficiency is improved. The upper mold plate, the lower mold plate and the pair of semicircular mold plates can be mutually closed or separated, so that casting and demolding of the belt pulley with the groove are automatically completed, the operation is simple, and the labor cost is low.

The invention relates to the technical field of steel bar truss assembling, in particular to a floor support plate steel bar truss automatic assembling device which comprises an assembling supporting assembly, a clamping assembly and a centering assembly. A plurality of sliding grooves distributed front and back are formed in the left end and the right end of the top of the assembly table, and a torsion assembly is arranged on the side portion of the assembly table. The transverse reinforcing steel bar is clamped and fixed through the two grooves which are folded front and back to prevent the transverse reinforcing steel bar from moving, due to the fact that the transverse reinforcing steel bar is pressed on the top of the longitudinal reinforcing steel bar, limiting of the longitudinal reinforcing steel bar is achieved, and before the transverse reinforcing steel bar is clamped through the two grooves, position centering of the transverse reinforcing steel bar is completed through the two centering push heads of the centering assembly. Therefore, the regularity of the assembled floor support plate steel bar truss can be ensured.

The invention discloses a hexagonal honeycomb-shaped three-dimensional weaving device and a weaving method thereof.Weaving single bodies are arranged according to the shape of a regular hexagon to form a square matrix type combination for joint weaving, and each weaving single body comprises a supporting platform, a rotating disc and a yarn carrier; three rotating gears and a guide rail are evenly distributed on the upper end face of the rotating disc along the circumference, a sliding block is arranged on the guide rail, the sliding block is connected with the rotating gears through a connecting rod, the yarn carrier is connected with the guide rail through a guide rail groove, and an outer tooth gear ring is arranged on the lower end face of the rotating disc. A rotating shaft is arranged in the center of the rotating disc, a center gear and a driven gear are arranged at the upper end and the lower end of the rotating shaft, the center gear is meshed with the three rotating gears at the same time, and the outer tooth gear ring and the driven gear are connected with a driving motor. A hexagonal honeycomb shape is formed, force from multiple directions can be borne, and the comprehensive performance of the material is improved.

The utility model discloses a polyurethane adhesive film pressing machine, which belongs to the technical field of pressing machines and comprises a concave main frame, transmission roll shafts are rotatably mounted on two sides in the concave main frame through bearings, a conveyor belt is mounted between the two groups of transmission roll shafts in a transmission manner, a first motor is fixedly mounted at one end of the rear side of the concave main frame, and a second motor is mounted at one end of the rear side of the concave main frame. A rotating shaft at the output end of the first motor is fixedly connected with one end of the corresponding transmission roller shaft, and three continuous sets of equidistant matching rollers are rotationally installed in the concave main frame through bearings. According to the technical scheme, through the arrangement of the first roller shaft, the cutting disc, the motor, the second roller shaft and the matching disc, a laminated polyurethane adhesive film is guided out from one side of the conveying belt, then the motor is controlled to drive the cutting disc on the first roller shaft to rotate, and then the cutting disc is matched with the matching disc to directly cut the side edge of the laminated polyurethane adhesive film; the regularity of the side edge of the polyurethane adhesive film is ensured, and the pressing quality of the polyurethane adhesive film is improved.

The utility model discloses a kind of excitation system de-excitation cabinet internal environment monitoring system, including vertical support, control box, two horizontal supports and multiple sensors.The excitation system de-excitation cabinet internal environment monitoring system utilizes the installation mode of horizontal support and installation branch, can increase or decrease the corresponding sensor according to the monitoring needs of de-excitation cabinet internal environment, and adjust the position of sensor, realize the multipoint multi-parameter monitoring in de-excitation cabinet, ensure the reliability of de-excitation operation;Each sensor is installed using metal bellows, so as to facilitate adjusting the position and monitoring angle of sensor, with good installation flexibility;Wiring is carried out using vertical support, horizontal support and metal bellows, so as to ensure the regularity of electrical connection cable.

The invention relates to the technical field of methane preparation devices, and discloses a methane aromatization catalyst preparation device and a preparation method thereof.The methane aromatization catalyst preparation device comprises a main body, the top of the main body is in bolted connection with a top cover, the bottom of the main body is fixedly connected with a discharging pipe, the outer surface of the top cover is fixedly connected with a feeding pipe, and the side, away from the main body, of the top cover is fixedly connected with a motor; and the output end of the motor penetrates through the top inner wall of the top cover and extends into the main body, and the top inner wall of the top cover is fixedly connected with a fixed cylinder. According to the device, different raw materials can be gradually dispersed through rubbing of the flexible plate, agglomeration possibly existing between the materials is broken, the materials are subjected to acting force in different directions, and therefore the material mixing sufficiency is greatly improved; the condition that the concentration of the raw materials is too high or too low locally in the main body can be prevented while sufficient distribution and mixing are achieved, so that the raw materials are more sufficiently mixed, and the uniformity and the reaction efficiency of catalyst preparation are improved.

The utility model discloses a sliding piece and a sliding assembly for an automobile sun-shading device and the sun-shading device. The sliding piece and the sliding assembly comprise an inserting part. The connecting plate is arranged at one end of the inserting part; the first clamping plate is arranged on the side, away from the inserting part, of the connecting plate, and the first clamping plate is perpendicular to the connecting plate; the second clamping plate is arranged on the side, away from the inserting part, of the connecting plate, the first clamping plate is perpendicular to the connecting plate, and the first clamping plate and the second clamping plate are arranged in parallel; the third clamping plate is L-shaped, the long side of the third clamping plate is parallel to the second clamping plate, and the short side of the third clamping plate is perpendicular to the second clamping plate; wherein a slide way is formed between the first clamping plate and the second clamping plate, and a passageway is formed between the second clamping plate and the third clamping plate. The device has the advantages of reducing derailing of the sliding piece and the guide rail, reducing shaking and guaranteeing sliding reliability and stability of the sliding piece on the guide rail.

The utility model discloses a building construction measuring plummet which comprises a plummet cylinder, a winding roller is rotatably arranged in the plummet cylinder, an opening is formed in the outer wall of the plummet cylinder, a movable groove is formed in the inner wall of the opening, a reciprocating lead screw is rotatably arranged in the movable groove, and a transmission cavity is formed in the wall of the plummet cylinder. The end of the winding roller and the end of the reciprocating lead screw extend into the transmission cavity and are connected through a transmission mechanism, the reciprocating lead screw is sleeved with a movable rod through a limiting mechanism in a threaded mode, a wire stroking ring is arranged on the movable rod, two installation rods are installed on the plummet cylinder, and one installation rod is fixedly connected with the plummet cylinder. By arranging the reciprocating lead screw, the movable rod, the wire stroking ring, the mounting rod, the wiping ring and the like, the device is provided with the wire stroking device and the wire wiping device, wire stroking and wiping operation is achieved, and the wire winding regularity and neatness are guaranteed.

The invention discloses a method for solidifying mineralized garbage fines for making roadbed filling materials, which comprises the following steps: weighing 60-70 parts of mineralized garbage fines, 4-8 parts of slaked lime, 5-14 parts of cement, 2-5 parts of stabilizers, and 2-5 parts of modifiers, mixing and stirring evenly, and then adding 18-25 parts of water and stirring evenly to obtain roadbed filling materials. The method uses slaked lime to degrade organic components in mineralized garbage to ensure long-term performance, and accelerates cement hydration with stabilizers and modifiers to fill soil voids, solidifies mineralized garbage fines by stabilizing, reinforcing, and enhancing synergistic effects, significantly improves the mechanical performance index of roadbed filling material soil, and achieves the stability of heavy metals; and it uses mineralized garbage fines as roadbed filling materials, realizes landfill burden reduction and reduces pollution to surrounding soil and groundwater, achieves heavy metal stability, reduces material costs and transportation costs for adjacent road engineering construction, and can provide reference for resource utilization of soil with high organic matter content and heavy metal pollution.

The present invention belongs to the technical field of embroidery machines, and in particular, relates to an easy-to-install guide rail structure applied to embroidery machines. Aiming at the problem that the installation accuracy requirement in the prior art is high and only one guide rail will also lead to instability in the guiding process, the present invention provides an easy-to-install guide rail structure applied to embroidery machines, including an embroidery machine body, and at least two guide rail mounting plates arranged on the embroidery machine body, each guide rail mounting plate also has at least two guide rail mounting holes, and the guide rails are connected to the guide rail mounting plates through the guide rail mounting holes, and the guide rails are provided with at least two and are parallel to each other, and each guide rail is slidably connected with at least one connecting slider. The present invention is provided with at least two guide rails, thereby ensuring the stability of the guiding process, and at the same time, the machining accuracy of the guide rail mounting holes is used to replace the installation accuracy, thereby reducing the difficulty of installation.

The application discloses a kind of quasi-continuous laser annular light spot energy uniform distribution implementation system, including bearing plate, the bottom of one side of bearing plate is provided with quasi-continuous laser for emitting parallel laser beam, the top of one side of bearing plate is provided with light guide for connecting the emission end of quasi-continuous laser, the output end of light guide is rotatably connected with rotary tube, the inside of rotary tube is mounted with mirror, which is arranged obliquely to the axis of rotary tube and is used for emitting and deflecting the parallel laser emitted by quasi-continuous laser, the bottom of bearing plate is provided with driving element for driving rotary tube to rotate, so as to carry out annular scanning, the output end of rotary tube is rotatably connected with focusing element for converging rotating planar scanning beam to form annular light spot, by relying on rotary scanning of rotary tube and matching dynamic forming mode of focusing convergence, quasi-continuous laser pulse working mode is adapted, and phase distortion problem generated under the action of laser pulse rising and falling edge transient state in traditional complex optical system is effectively avoided.

This invention discloses a method for detecting and analyzing mineral elemental composition based on laser-induced breakdown spectroscopy, belonging to the technical field of laser-induced breakdown spectroscopy detection and analysis. The method includes: exciting multiple points on the sample surface and acquiring spectral signals and spatial coordinates at each point; constructing an elemental distribution probability map based on all point coordinates and signals; extracting the gradient field of signal intensity varying with coordinates from the spectrum, and marking regions with gradients exceeding a threshold as heterogeneous interfaces; performing layered virtual sectioning based on the heterogeneous interface distribution density to generate multiple independent sub-blocks; normalizing and superimposing all spectral signals within each block to obtain the block's characteristic spectrum; and matching the characteristic spectra of each block with a standard mineral characteristic spectral library to determine the dominant element type and relative content in each block. This invention enables refined and non-destructive analysis of the elemental distribution within mineral samples.

The present invention discloses a tetrahedral mesh optimization method based on volume uniformity and angle uniformity. Currently in the field of tetrahedral mesh generation, how to make the final generated mesh contain as few thin elements as possible is still an open problem. The present invention updates the connection mode of the tetrahedral mesh through topological transformation; then optimizes the mesh quality through a point smoothing algorithm based on volume uniformity, improves the distribution of mesh vertices, repeats the topological transformation and volume uniform smoothing algorithm until the volume energy converges; then, optimizes the tetrahedral mesh quality through a point smoothing algorithm based on angle uniformity, improves the dihedral angle distribution of the global tetrahedral unit, repeats the topological transformation and angle uniform smoothing algorithm until the angle energy converges. The present invention effectively improves the uniformity of volume distribution and the quality of the average minimum dihedral angle of the tetrahedral mesh, ensuring that a more uniform tetrahedral mesh is obtained after optimization.

The present invention provides an environmentally friendly biomass high-efficiency mixed burner in the field of boiler technology, comprising: a combustion body: a grate assembly arranged in the combustion body; a fire channel formed by the back and forth movement of the grate assembly; and a feeding assembly arranged outside the combustion body; the feeding assembly fills biomass into carbon fuel to form a sandwich mixed furnace charge, and sends it to the grate assembly in a closed state of the fire channel, the grate assembly preheats the placed sandwich mixed furnace charge, and the formed fire is discharged through the fire channel in an open state. The present invention has the advantages of sufficient combustion of biomass mixed furnace charge and high furnace charge feeding efficiency.

The invention relates to the technical field of textile machinery, in particular to a forming tool platform for bionic three-dimensional fabric and a working method of the forming tool platform. The forming tool platform comprises a base, a three-degree-of-freedom positioning mechanism and a positioning auxiliary mechanism, the three-degree-of-freedom positioning mechanism and the positioning auxiliary mechanism are installed on the base, and the base is used for supporting the three-degree-of-freedom positioning mechanism and the positioning auxiliary mechanism and used for flatly laying cloth to be formed. The three-degree-of-freedom positioning mechanism is used for pressing the surface of the to-be-formed cloth so as to control the forming node position of the bionic fabric, and the positioning auxiliary mechanism is used for supporting the three-degree-of-freedom positioning mechanism. According to the technical scheme provided by the invention, the preparation of the high-layer bionic three-dimensional fabric can be realized.

This application discloses an LED display screen, relating to the field of LED display screen technology. The LED display screen includes a cabinet, LED display units, and an arc adjustment mechanism. The cabinet includes a first frame, a second frame, a first hinge structure, and a second hinge structure. The first hinge structure is rotatably connected between the first and second frames at their first ends, and the second hinge structure is rotatably connected between the second ends of the first and second frames. The LED display units are connected to the first and second hinge structures. The arc adjustment mechanism is located between the first and second frames and is used to adjust and fix the arc of the LED display units. This LED display screen solves the problem that current LED displays cannot achieve flexible angle adjustment while ensuring connection strength and angle consistency.

The utility model discloses an integrated quantum measurement and control circuit, a quantum calculation measurement and control system and a quantum computer, comprising a plurality of measurement and control line integrated modules, each measurement and control line integrated module comprising a plurality of coaxially arranged wire coils and a plurality of adapters arranged on each wire coil in an array, the wire coils are mounted on a room temperature disc and a plurality of cold discs of the dilution refrigerator in a one-to-one correspondence manner; the plurality of first cables are arranged between the wire coil fixed on the room temperature disc and the functional board card; a plurality of second cables are arranged in parallel between any two adjacent wire coils; the plurality of third cables are arranged between the wire coil fixed on the cooling disc with the lowest temperature and the quantum chip; and the plurality of first cables, the plurality of second cables and the plurality of third cables are electrically connected in a one-to-one correspondence manner through adapters to form the measurement and control line integrated module comprising the plurality of quantum measurement and control lines. According to the invention, the integration level of the cable in the measurement and control circuit is improved, and wiring is facilitated.

The technical scheme of the utility model discloses a motor stator, a motor and a compressor, the motor stator comprises a stator iron core and a stator winding, the stator iron core comprises a stator yoke and a plurality of stator teeth arranged at the inner side of the stator yoke at intervals, and two adjacent stator teeth form a stator slot. The groove bottom of the stator groove comprises a first groove section and a second groove section in the circumferential direction of the stator core, an included angle is formed between the first groove section and the second groove section, and at least one of the first groove section and the second groove section is linear; the joints of the first slot section and the slot side walls of the adjacent stator slots and the joints of the second slot section and the slot side walls of the adjacent stator slots are chamfered, and the radius of each chamfer is R1; the stator winding wire is wound in the stator groove, the wire diameter of the stator winding wire is RW, and R1 and RW meet the condition that R1 / RW is larger than or equal to 1 and smaller than or equal to 3. According to the technical scheme of the utility model, the matching between the stator winding and the groove type structure of the stator groove can be increased, the regularity of the stator winding is ensured, the winding process is improved, the groove fullness rate of the motor stator is improved, and the motor efficiency is further improved.

The invention relates to a PLC-based electric water filter pollution discharge control method and system, and the method comprises the steps: carrying out the system initialization of a PLC, synchronously starting a timing control module and a pressure difference control module, and generating a timing pollution discharge signal and a pressure difference pollution discharge signal; the method comprises the following steps: receiving a timing pollution discharge signal and a pressure difference pollution discharge signal through a PLC, making a pollution discharge decision according to the signal type and the current state of a system, starting a pollution discharge flow when any pollution discharge signal is triggered and the system is in a non-pollution discharge state, monitoring the state of a pollution discharge valve and the pressure difference change in the pollution discharge process, and controlling the pollution discharge flow. And an abnormal alarm is triggered when the pressure difference is not recovered to a normal range within a set time. By combining cooperative work of a double-signal triggering mechanism of a timing sewage discharge signal and a pressure difference sewage discharge signal, the regularity of system operation is guaranteed, the adaptability to sudden working conditions is achieved, through adjustable parameter design and a real-time monitoring function, the self-optimization and fault diagnosis capacity is achieved, the sewage discharge efficiency can be better improved, and the system is suitable for popularization and application. And thus, the optimal pollution discharge state is achieved.

The present invention belongs to the technical field of warehousing and logistics, and specifically discloses an ice board stacking and delivery system, an ice board stacking method, an ice board delivery method, an ice board collection system and an ice board collection method. Among them, the ice board stacking and delivery system includes an ice board receiving device and an ice board storage and retrieval device, the ice board receiving device includes a receiving frame and a lifting pallet provided with an ice board inlet and outlet; the ice board storage and retrieval device includes a pallet lifting mechanism and an ice board pushing mechanism, the pallet lifting mechanism is used to drive the lifting pallet to lift vertically, and the ice board pushing mechanism is used to push the ice board. The ice board stacking method and the ice board delivery method are both applied to the ice board stacking and delivery system, the ice board collection system includes the ice board stacking and delivery system, and the ice board collection method is applied to the ice board collection system. The ice board stacking and delivery system, ice board stacking method, ice board delivery method, ice board collection system and ice board collection method provided by the present invention can improve the automation and collection efficiency of ice board collection, and reduce the manpower cost required for ice board collection.

The invention discloses an industrial waste gas VOCs adsorption device which comprises an adsorption barrel, a gas inlet pipe is arranged at the bottom end of the adsorption barrel in a penetrating mode, an exhaust pipe is arranged at the top end of the adsorption barrel in a penetrating mode, the gas inlet pipe and the exhaust pipe are symmetrically distributed, an adsorption part is arranged in the adsorption barrel, and a vibration part for pushing an adsorption part body to shake up and down is arranged in the adsorption barrel. The vibration part is arranged below the adsorption part, an activation part for accumulating gas entering the adsorption barrel from the gas inlet pipe and driving the vibration part to rotate through gas pressure is arranged in the adsorption barrel, and the activation part is arranged below the vibration part; the adsorption bed can slide up and down and collide and vibrate through the adsorption part, an airflow dead zone in the adsorption bed is effectively avoided, a granular adsorption material is prevented from forming a bridging structure due to extrusion, full contact of the adsorption material and VOCs waste gas is ensured, the effective utilization rate of an adsorbent and the purification efficiency of the device are improved, and the service life of the device is prolonged. Meanwhile, the outer frame of the adsorption bed abuts against the inner wall of the adsorption barrel, waste gas short circuit is avoided, and the purification effect is further guaranteed.

The utility model discloses an automatic carton stacking mechanism, and relates to the carton manufacturing field, the automatic carton stacking mechanism comprises a rack, an anti-inclination mechanism and an anti-warping mechanism, one side of the top end of the rack is provided with a horizontal track, one side of the bottom of the horizontal track is provided with a discharging area, the other side of the top end of the rack is provided with a feeding table, and the bottom of the feeding table is provided with a discharging area. A servo push rod assembly is arranged on the periphery of the feeding table, a folding area plate is arranged at the joint of the discharging area and the feeding table, the inclination preventing mechanism is used for preventing the cartons from toppling over when the cartons are folded, and the warping preventing mechanism is used for preventing the cartons from warping when the cartons are folded. The C-shaped plate moves on the inner side of the folding area plate, the C-shaped plate is attached to the two sides of a carton, the carton is effectively prevented from toppling over, the problems of folding errors, equipment blockage and the like caused by carton toppling over are solved when the cartons are processed in batches, the continuity of folding work is guaranteed, the production efficiency is improved, and the defective rate is reduced.

The utility model relates to a cable line state monitoring device, which comprises a shell, an integrated circuit board fixed in the shell, a power panel integrated on the integrated circuit board, three communication boards electrically connected with the power panel respectively, an integrated circuit board external antenna and a power panel external power line, the three communication boards are electrically connected with the three main boards arranged in the shell one by one; each mainboard is externally connected with a current sensor through a data line and is used for receiving current data collected by the current sensor from the cable. The beneficial effects are that one device can collect three-phase current data and transmit the current data to a data center, so that the operation state of a cable line can be monitored on line, and the data center can rapidly position a fault section of the cable line by analyzing abnormal current data; therefore, workers can maintain cable lines conveniently, the number of installed devices is reduced, the cost is reduced, and the reliability of data uploading of the device is guaranteed through an external antenna.

The invention discloses an automatic cleaning solar cell panel assembly process, and belongs to the technical field of solar cell panels, the solar cell panel assembly process comprises a bottom plate, fixed vertical plates are arranged on the upper surface of the bottom plate, a connecting shaft is connected between the fixed vertical plates, a mounting plate is mounted on the connecting shaft, a fixed rail is arranged on the upper surface of the bottom plate, and the fixed rail is connected with the mounting plate. And a driving motor is arranged on one side of the fixed rail. Through cooperation of a driving motor and a threaded rod, automatic displacement of a movable support is achieved, so that the angle of a mounting plate is automatically adjusted, the complexity and labor intensity of manual operation are greatly reduced, the surface of a solar cell panel can be effectively cleaned through arrangement of a micro motor and a driving gear on a cleaning plate, and the cleaning efficiency is improved. The photoelectric conversion efficiency of the solar cell panel is improved, the service life of the solar cell panel is prolonged, the time relay is arranged, the micro motor can be started at regular time, forward and reverse switching rotation is achieved, and the regularity and high efficiency of cleaning work are guaranteed.

The utility model relates to the technical field of medical instruments, in particular to a knee joint postoperative straightening trainer which comprises a base. The chair is mounted on one side of the base; and the partition plate is fixedly mounted on one side of the top of the base. The connecting plates are fixedly installed at the front ends of the two sides of the bottom plate, the grip is hinged and contained in the containing groove, the grip is rotated out by being matched with the spring installed between the supporting block and the partition plate, the grip can be held by two hands, the connecting plates are pushed forwards through force exerted by the hands, and therefore the bottom plate can move in an auxiliary mode. According to the knee joint straightening training device, the difficulty of knee joint straightening training of a patient can be properly reduced, the buffering effect can be achieved, and meanwhile when the legs cannot exert strength, knee joints can be protected.

The invention relates to the technical field of charged particle beam control, and discloses an electrostatic deflector for a focused ion beam and an assembly process thereof, the electrostatic deflector comprises an electrode assembly, a mounting flange, an insulation structure and a positioning structure; an upper electrode and a lower electrode of the electrode assembly are correspondingly arranged; part of the upper electrode is embedded into the mounting flange; the insulating structure is arranged on one side, far away from the upper electrode, of the mounting flange, and part of the lower electrode is embedded into the insulating structure; the positioning structure sleeves the lower electrode; the thermal expansion coefficient of the electrode assembly is A, the thermal expansion coefficient of the insulation structure is B, and 1 < = A / B < = 1.5. The proportional relation between the thermal expansion coefficients of the electrode assembly and the insulation structure is limited, the thermal expansion coefficients of the electrode assembly and the insulation structure are matched, the deformation quantity difference of the electrode assembly and the insulation structure under the extreme working condition is reduced, thermal stress cracking is avoided, and the assembly precision and structural integrity of the electrode assembly and the insulation structure are maintained; the electric field is distributed according to design, and distortion is avoided.