64results about How to "Reduce the possibility of drift" patented technology

The invention relates to a shift register and a gate driving circuit. The shift register includes a pull-up circuit, an output circuit, a pull-down circuit, a first pull-down control circuit, and a second pull-down control circuit. The first pull-down control circuit is responsive to a high level signal, the high level signal is provided to a pull-down control node, a voltage signal of the pull-down control node is responded, the high level signal is provided to a pull-down node, a first switch signal, a second switch signal, and the voltage signal of the pull-up node are responded, and a lowlevel signal is respectively provided to the pull-down node and the pull-down control node. The second pull-down control circuit is responsive to a first pull-down control signal and a second pull-down control signal, the low level signal is respectively provided to the pull-down node and the pull-down control node, the time when the pull-down node is in a DC high-level working state, the possibility that the threshold voltage of the associated film transistor drifts is reduced, and the noise reduction effect is reduced.

The invention provides a corn chloroplast transgene expression vector containing herbicide resistant gene and application thereof. The transgene expression vector comprises an expression box of 5-enol form acetone shellokimic acid-3-phosphate synthase (EPSP) gene, a homologous recombination fragment atpB in a corn chloroplast gene group and a homologous recombination fragment rbcL, wherein the expression box of the EPSP synthase gene is positioned between the homologous recombination fragment atpB and the homologous recombination fragment rbcL. The invention further provides a construction method of the chloroplast transgene expression vector. The invention also provides application of the chloroplast transgene expression vector in improving corn glyphosate resistance, which comprises leading the expression vector to convert callus or cells of corns, and screening to obtain resistant callus or cells; and inducing resistant callus or cells to differentiate, and regenerating to achieve corn resistance plants. The corn chloroplast transgene expression vector containing herbicide resistant gene can remarkably improve corn glyphosate resistance and has the advantages of being high in biological safety, capable of saving time, efficient, little in energy consumption, low in cost and the like.

The invention relates to a cold rolling mill for steel strip machining and a cold rolling process, and belongs to the technical field of steel strip machining, the cold rolling mill comprises a bottom plate and a cold rolling mechanism mounted on the bottom plate, one side of the cold rolling mechanism is provided with an unwinding mechanism mounted on the bottom plate, and the other side of the cold rolling mechanism is provided with a winding mechanism; a first guide roller is arranged between the cold rolling mechanism and the unwinding mechanism, and a second guide roller is arranged between the cold rolling mechanism and the winding mechanism; a guide mechanism is arranged between the cold rolling mechanism and the first guide roller, the guide mechanism comprises a supporting frame and two first mounting blocks, a sliding groove is formed in the upper surface of the supporting frame, sliding blocks slidably connected with the sliding groove are fixed to the bottom ends of the two first mounting blocks, and a driving assembly is arranged on the supporting frame; the two first mounting blocks are each provided with a first mounting groove, first guide wheels are arranged in the first mounting grooves, and the steel belt is located between the two first guide wheels. The device has the effects that the possibility of deviation of the steel belt is reduced, and the machining quality of the steel belt is improved.

The invention discloses a method, a device and a system for adjusting light spots received by a light valve and belongs to the field of laser projection. The method includes using a testing device for reflecting the light spots received from a light machine illuminating system to the screen and form a light spot image on the screen, wherein the light spot image comprises part or all of contour line images; adjusting the relative positions of the boundaries of the light spot image and the contour line images until an absolute value of a distance difference of at least one group of calibration distances is not more than a corresponding distance difference threshold value, wherein each group of calibration distances includes the distances between two opposite sides of the light spot image and corresponding sides of the contour line images, the size of the testing device is as same as that of the DMD light valve, the reflection surface of the testing device for light reflection is provided with contour lines, and the contour lines and boundary lines of a display region of the DMD light valve are arranged correspondingly. The method, the device and the system for adjusting the light spots received by the light valve are used for digital light processing projectors and solves the problem of low light spot adjusting precision, so that image display effects are optimized.

The invention relates to a shift register and a gate drive circuit. The shift register comprises a pull-up circuit, an output circuit, a pull-down circuit, a first pull-down control circuit and a second pull-down control circuit. The first pull-down control circuit responds to a high-level signalto provide a high-level signal to the pull-down control node, responds to a voltage signal of the pull-down control node to provide the high-level signal to the pull-down node, and responds to a first switch signal, a second switch signal and a voltage signal of the pull-up node, to provide a low-levelsignal to the pull-down node and the pull-down control node. The second pull-down control circuit responds to the first pull-down control signal and the second pull-down control signal; The low-levelsignal is provided for the high-level signal input end, so that the time of the high-level signal input end in a direct-current high-level working state is shortened, the time of the pull-down node in the direct-current high-level working state is shortened, the probability of drifting of the threshold voltage of the related thin film transistor is reduced, and the noise reduction effect is improved.

The invention discloses an EPSP synthase (5-enolpyruvyl-shikimate-3-phosphate synthase) gene rice chloroplast expression vector and application of the expression vector. The rice chloroplast expression vector comprises EPSP synthase gene expression cassette, and homologous recombination fragments atpB and rbcL in rice chloroplast genome, wherein the EPSP synthase gene expression cassette is located between atpB and rbcL. The invention also provides a construction method of the chloroplast expression vector. According to the invention, the rice chloroplast expression vector is applied to improve glyphosate resistance of rice, and the application comprises transforming rice callus or callus cells with rice chloroplast expression vector and regenerating to obtain genetically modified rice with notably improved glyphosate resistance. The rice chloroplast expression vector of the invention can efficiently improve glyphosate resistance in the genetically modified rice to obtain genetically modified rice with stable heredity and without gene silencing or gene segregation, and has the advantages of high safety, time saving effect, high efficiency, low energy consumption, low cost and the like.

The invention relates to a cloth winding barrel for spinning. The cloth winding barrel comprises a rotating shaft and a hollow winding barrel body capable of rotating along with the rotating shaft. The cloth winding barrel is characterized by further comprising a cloth clamp contained in the winding drum body, the cloth clamp comprises a central rod parallel to the axis of the winding drum body, and two clamping pieces sleeving on the central rod and capable of opening and closing around the central rod, the winding drum body axially comprises an open end and a closed end, a narrow notch allowing cloth to penetrate is arranged on the side wall of the winding drum body, one end of the notch is open at the open end, a clamping groove with an inward opening is arranged on the closed end of the winding drum body, and the corresponding end of the central rod is clamped in the clamping groove. The winding drum body is arranged to be of a hollow structure and matched with the special cloth clamp for use, so that firmness in fixing of the cloth is greatly improved; the cloth winding barrel is convenient to use and small in difficulty in operating; due to high stability in fixing of the cloth, probability of deviation of the cloth in the process of winding is greatly lowered, and winding quality is guaranteed.

The invention discloses an adjustment method and apparatus for light spot received by a light valve, and belongs to the laser projection field. The adjustment method comprises the steps of obtaining a temperature value of each point of at least one group of contrast points, wherein the contrast points are positioned on window glass of a light valve of a digital micromirror device (DMD) of an optical machine illumination system, and each group of the contrast points are positioned on midpoints of one group of opposite sides of the window glass; determining a temperature difference value of each group of the contrast points according to the temperature value of each point of at least one group of contrast points; and when the absolute value of the temperature difference value of each group of the contrast points is greater than a corresponding temperature threshold value, adjusting the position of the light spot on the light valve until the absolute value of the temperature difference value of each group of the contrast points is not greater than the corresponding temperature threshold value. By adoption of the adjustment method and apparatus, the problem of low precision in light spot adjustment is solved, and an image display effect is optimized. The adjustment method and apparatus are used for a digital light processing projector.

The invention discloses a method and device for positioning an object and a mobile terminal. The object moves from a path starting point of a preset path to a path ending point, the preset path is constituted by making multiple line segments connected in sequence, each line segment comprises a corresponding line segment starting point, a line segment ending point, the smallest distance and the largest distance, and the distance between the path starting point and the path ending point is the largest length of the preset path. The method comprises the steps of obtaining a moving attribute and a moving time interval of the object, wherein the moving attribute comprises a current speed of the object and a current distance between the object and the path starting point; calculating and renewing the current distance according to the moving attribute and the moving time interval; comparing the current distance with the smallest distance and the largest distance of all the line segments to obtain the line segment corresponding to the position which the object currently should move to if the current distance is smaller than the largest distance; calculating a distance difference value of the current distance and the smallest distance of the line segment corresponding to the position which the object currently should move to, and positioning the object to the position which is the distance difference value from the line segment starting point in the line segment.

The invention provides an anti-deviation automatic collecting and releasing device for new energy automobile battery recycling. The anti-deviation automatic collecting and releasing device for new energy automobile battery recycling comprises a bottom plate, a lifting structure, a clamping structure, a supporting and moving structure and a limiting structure, wherein the lifting structure comprises a vertical plate, a lifting steel wire rope, a double-drum winch, a top plate and a telescopic sleeve, the top of one side wall of the bottom plate is fixedly connected with the vertical plate, the front end face of the top of the vertical plate is fixedly connected with the horizontally-arranged top plate, the center of the top of the top plate is provided with the double-drum winch, and the output end of the double-drum winch is connected with the lifting steel wire rope. The anti-deviation automatic collecting and releasing device for new energy automobile battery recycling has the advantages that the two side walls of a new energy automobile battery can be clamped, a U-shaped warping plate can be moved to the bottom of the new energy automobile battery by starting a second air cylinder, the possibility of vertically downward sliding is prevented, and the safety in the lifting process is guaranteed.

The invention relates to the technical field of turbine engine manufacturing, and discloses a turbine engine trial running device. The turbine engine trial running device comprises a base and a groundbolt set; the base comprises two first base bodies for supporting the two ends of a turbine engine base plate, and a second base body for supporting the side edge of the turbine engine base plate; multiple parallel transverse strip grooves with convex sections are formed in the upper surfaces of the first base bodies; multiple parallel longitudinal strip grooves with convex sections are formed inthe upper surface of the second base body; and the ground bolt set comprises multiple first bolts slidingly connected to the first base bodies and with bolt heads inserted in the transverse strip grooves, first nuts in bolt connection to the first bolts and used for butting against the upper surface of the turbine engine base plate, multiple second bolts slidingly connected to the second base body and with bolt heads embedded in the longitudinal strip grooves, and second nuts in threaded connection with the second bolts and used for butting against the upper surface of the turbine engine baseplate.

This invention discloses one rectangle lithium ion battery ear and its process method, wherein, the ear is of bar electrode ear with different width, one is wider nearly and the other is thinner. The process method comprises the following steps: processing one end of electrode ear wide enough connected to cover board to be connected to cover board easily; processing the other end thin enough of ear to avoid pore through isolation film in process. This invention discloses one rectangle lithium ion battery comprising electrode slices, bar electrode ear and cover board with one end wider and the other end thinner.

The invention discloses a household disinfection cabinet with low power consumption and an automatic monitoring function based on Internet of Things technology. The household disinfection cabinet comprises a disinfection cabinet body, a plurality of uniformly distributed disinfection cabinet clapboards are connected in the disinfection cabinet body, a pair of tracks are connected to the disinfection cabinet clapboards, a plurality of uniformly distributed rolling mechanisms are connected to the tracks, the rolling mechanism comprises a rolling protection shell, a rolling motor is connected inthe rolling protection shell, the rolling motor is connected with the rolling protection shell, a rolling motor shaft is connected to the rolling motor, a transmission limiting block is connected to the rolling motor shaft, and a wheel shaft is connected to the rolling protection shell. Through arrangement of corresponding mechanisms on the household disinfection cabinet, a situation that multipledishes are blocked by one another is greatly reduced, the dishes can be rapidly and comprehensively disinfected, the disinfection cabinet is prevented from being opened for a long time, power consumption of the household disinfection cabinet is greatly reduced, resource waste is avoided, and burdens are relieved for users.

The invention provides an automatic coating system. The automatic coating system comprises a vacuum chamber device, a transfer chamber device and a suspension operation chamber, a rotating frame and a rotating frame driving device are arranged in the vacuum chamber device, and a hanging plate is arranged on the rotating frame. A manipulator device and a first rotating device are arranged in the transfer chamber device. A rail changing device and a second rotating device are arranged in the suspension operation chamber. The rail changing device is used for connecting a transfer chamber and the suspension operation chamber. The transfer chamber is in a vacuum state when performing exchange operation with the vacuum chamber, and is in an atmospheric state when performing exchange operation with the suspension operation chamber. The sum of the coating time of a vacuum chamber, the vacuumizing time of the transfer chamber, the exchange time of the transfer chamber and the vacuum chamber, the vacuum breaking time of the transfer chamber and the exchange time of the transfer chamber and the suspension operation chamber is equal to the operation time of the suspension operation chamber. According to the automatic coating system, the coating efficiency and the coating quality can be improved, and the occupied area is small.

A sliding operation type variable resistor has high output signal accuracy, in which the sliding element will not bias relative to the mounting position of the slide rod. An opening (43) is provided near one end of the length direction (slide rod moving direction) of the base (41) of the sliding element (4), thus, a stenosis portion (41a) if formed between the opening (43) and the one end. A clampprotuberance (41b) projecting to the opposite side of the opening (43) is formed on the stenosis portion (41a). A first restriction portion (restriction wall) (33) and a second restriction portion (restriction convex wall) (34) in contraposition with specified interval along the slide rod moving direction are provided on the slide rod (3), the base (41) is installed between the two restriction portions (33,34), and the specified interval is shorter than the natural length of the base (41), and the base (41) is clipped between the two restriction portions (33,34) when the restriction portions(33,34) are bent to the opening (43).

The invention relates to a cell preserving fluid filling production line, and relates to the technical field of production of cell preserving fluid. According to the major technical scheme, the cell preserving fluid filling production line comprises a labeling device, a loading frame, a storage box and an adjusting assembly, wherein the labeling device is arranged outside a filling frame; the loading frame is arranged on the filling frame; the storage box is arranged on the loading frame; the adjusting assembly is arranged in a feed box; a discharging hole for a bottle body to slide out is formed in the bottom wall of the storage box; an unloading assembly is arranged in the storage box; a transport assembly is arranged in the loading frame; a pushing assembly is arranged on the filling frame; a cap screwing device is arranged on the filling frame; and a filling machine is arranged on the filling frame. When bottle bodies of different sizes need to be filled, the width in the storage box is readjusted through the adjusting assembly, so that the bottle bodies of different sizes can be placed, and the adaptability of the storage box to the bottle bodies is improved. The placement ofthe bottle bodies of different sizes is facilitated, so that bottle bodies of different heights can be filled conveniently, and the production cost is enterprises is lowered.

The invention relates to the field of packaging bag processing, in particular to a bag making machine edge closing device with a guiding function. The bag making machine edge closing device with the guiding function comprises a frame body, two feeding rollers and two edge closing wheels are arranged on the frame body, a support plate is fixedly connected to the position, close to the feeding rollers, of the frame body, a preformed hole for a packaging bag to pass through is formed in the support plate, the support plate is connected with a pair of guide blocks, the two guide blocks are arranged on the two sides of the packaging bag respectively, and the guide blocks are connected with the side face of the packaging bag in a sliding mode. The bag making machine edge closing device with theguiding function has the effect of reducing the possibility of deviation of the packaging bag in the process of conveying the packaging bag by the feeding rollers.

The invention relates to a forging press with a buffering function for a mechanical part processing. The forging press comprises a forging press body, wherein a forging head is connected to the innertop wall of the forging press body, a connecting plate is connected between two side walls corresponding to the forging press body, and four mounting grooves distributed in a matrix are formed in theupper end surface of the connecting plate. The probability of forging position offset is reduced; a part moving to the lowest point is forged by means of the forging head; a first spring buffers a mounting box and a working plate, so that vibration is reduced and noise is reduced; when the position of the forging part needs to move, a rotary worm drives a worm wheel and a first central shaft to rotate, the first central shaft drives a second central shaft and a gear to rotate through a transmission belt, and the gear drives a rack, the working plate and the part to move. The combined structureis simple to operate and convenient to use, is steady to fix the part, reduces shock during forging and reduces the noise, and can adjust the position of the part freely.

The invention relates to a garden plant protection device and a construction method. The garden plant protection device comprises an annular base, a moving belt, a moving box, a downward digging box, a supporting rod and a protection frame. A horizontal plate is slidably connected to the annular base in the vertical direction, and a driving mechanism used for driving the horizontal plate to move is installed on the annular base. Limiting mechanisms are correspondingly installed at the two ends of the horizontal plate, each limiting mechanism comprises an insertion rod fixedly connected to the bottom of the horizontal plate, a first vertical groove used for allowing the corresponding insertion rod to slide is formed in the annular base, and the end, away from the horizontal plate, of each first vertical groove penetrates through the bottom of the annular base. According to the garden plant protection device, the possibility of deviation of the annular base can be reduced.

The invention discloses a polishing device for electromechanical equipment machining in the technical field of electromechanical equipment machining. The polishing device comprises a workbench. A cross-shaped moving groove is formed in the surface of the workbench. An active block cooperating with the moving groove is arranged in the moving groove. An air cylinder is arranged on one side of the workbench. The free end of an output shaft of the air cylinder is fixedly connected with the active block. Two symmetrically-distributed clamping blocks are arranged in the direction, perpendicular to the active block, of the workbench. The two clamping blocks are both located in the moving groove. The active block and the clamping blocks synchronously move through a linkage mechanism. According tothe polishing device, the active block, chucking blocks and the clamping blocks are adopted for cooperation, when moving, the active block drives the clamping blocks on the two sides and the chuckingblocks in the symmetric directions, an annular machined workpiece in the middle is clamped, the annular machined workpiece is located and fixed in the front direction, the back direction, the left direction and the right direction, and the possibility that deviation happens during machining of the annular machined workpiece is effectively reduced.

The invention relates to quenching equipment for a V-shaped guide rail rack, and relates to the technical field of rack machining equipment. The quenching equipment comprises a rack, a quenching device is arranged on the rack, the quenching device comprises a power supply, a first electromagnetic plate and a second electromagnetic plate, and a quenching channel allowing the rack to pass through exists between the first electromagnetic plate and the second electromagnetic plate; the second electromagnetic plate is a plane plate, the face, facing the second electromagnetic plate, of the first electromagnetic plate is a V-shaped face, induction coils are wound around the first electromagnetic plate and the second electromagnetic plate, and the power source is used for supplying power to the induction coils on the first electromagnetic plate and the second electromagnetic plate; and the rack is further provided with a movement mechanism used for driving the rack to pass through the quenching channel. On one hand, the second electromagnetic plate suitable for the shape of the bottom of the rack is arranged, so that the bottom of the rack is uniformly heated in the quenching process andhas better wear resistance after quenching, and on the other hand, the tooth surface and the bottom of the rack are quenched simultaneously, and the quenching efficiency can be improved.

The invention discloses a feeding device of a furniture production cutting machine and belongs to the field of furniture production. The feeding device of the furniture production cutting machine comprises a cutting machine body. Compared with the prior art, a wood board needs to be pushed by a worker to be moved and cut. Through the feeding device, the wood board needs to be fixed first accordingto the required cutting size of the wood board; then a control motor drives the wood board to be moved and cut in the horizontal direction; and meanwhile, an included angle exists between limiting wheels and the horizontal direction, the limiting wheels can assist a pressing plate in driving the wood board to move in the feeding direction, can press and fix one end of the wood board and can reduce the possibility of deviation of the wood board in the feeding process and improve the cutting accuracy of the wood board. Meanwhile, the possibility that the worker is injured by the cutting machinebody is reduced, and the using safety of the worker is improved.

A cooling and curing device for an inner box body of a membrane type gas meter relates to the technical field of gas meter processing and comprises a cooling and curing chamber, a working cavity is formed in the cooling and curing chamber, a door body is arranged at an opening of the cooling and curing chamber, and the cooling and curing device further comprises an inner box body placing frame, a cart, a cold air spraying mechanism and a lifting mechanism. The inner box body containing frame is detachably arranged on the cart, the cart is arranged in the cooling curing chamber in a sliding mode, the cold air spraying mechanism is arranged in the cooling curing chamber and located above the cart, and the lifting mechanism is arranged outside the cooling curing chamber and located at the top end of the cooling curing chamber. The lifting mechanism is in driving connection with the cold air spraying mechanism so as to drive the cold air spraying mechanism to blow-dry the four sides of the inner box containing frame through cold air in the vertical direction, in the whole glue cooling and curing process, automatic operation is adopted, glue curing is achieved under blowing of the cold air, the working efficiency is improved, and the labor intensity of workers is greatly reduced.

The invention discloses a pile bearing type half-sphere breakwater structure and a construction method, and relates to the technical field of water conservancy projects. According to the technical scheme, the structure comprises a half-sphere structure, a foundation pile, a broken stone pad layer and bottom protection stone; the half-sphere structure comprises a base, multiple fixing devices are arranged on the base, each fixing device comprises a mounting hole and a first fixing mechanism, each first fixing mechanism comprises an annular block, multiple elastic plates and a pushing assembly,each pushing assembly comprises an annular plate, a transition pipe communicating with the end, close to the mounting hole, of the annular plate and a pushing pipe communicating with the end, away from the annular plate, of the transition pipe, the annular plates are arranged in a manner of protruding out of the bottoms of the mounting holes, first sinking holes used for placing the annular platesare preset in the bottom of the base, the pushing pipes are arranged in the mounting holes in a slippage manner in the axial direction of the mounting holes, and a driving assembly used for driving the annular plates to move in the vertical direction is arranged on the base. The fixing devices are arranged, the half-sphere structure can be conveniently dismounted and mounted, and the half-spherestructure can be conveniently replaced.