87results about How to "Overcoming fragile" patented technology

The invention discloses an elevator key and a method based on the image recognition technology. The elevator key comprises a keypad pattern, a linear infrared laser, a camera, a processor and a projection module. Infrared light emitted by the linear infrared laser covers the front face of the keypad pattern in parallel, the back face of the keypad pattern is located in a view finding range of the camera, and the camera and the projection module are respectively connected with the processor. When a finger touches the keypad pattern, the finger can block the infrared light to form a facula, and then an infrared facula can occur in images collected by the camera due to the fact that the keypad pattern is semitransparent. The specific position of the infrared facula is determined according to the image processing technology, and further which key of the keypad pattern is triggered is determined. The processor recognizes the faucla and converts the facula into corresponding instructions for execution, simultaneously key state is displayed by projecting the light at the corresponding position on the keypad pattern through the projection module, and man-machine interaction operation on an elevator can be finished.

The invention discloses a multilayer composite plate for building templates and brick pallets, which is prepared from magnesium cement gel added with a reinforcing material and a filler, and comprises surface layers (1) and sandwich layers (2); the surface layers (1) or/and the sandwich layers (2) comprise the filler or/ and the reinforcing material with even content or gradient change; the number of the sandwich layers (2) is totally between 1 and 5; and the reinforcing material is arranged between adjacent sandwich layers (2). The invention also comprises a preparation process for the multilayer composite plate, which comprises that: production equipment with the capacity of stirring and preparing materials at multiple positions and rolling at multiple positions orderly rolls the surface layers (1) or/and the sandwich layers (2) on a subplate (3); and the reinforcing material is used as a reinforced structure between adjacent surface layers (1) or/and sandwich layers (2). The products corresponding to the invention have the characteristics of strong applicability, good technical effect and suitability for mechanical continuous production, and have predictable great economic and social values.

A structurally improved manual adjustment arm capable of automatically locating deadlock comprises a housing, a worm gear, a worm and a location locking device, wherein an upper mounting hole and a lower mounting hole are correspondingly formed in the housing; the location locking device comprises an upper adjustment shaft, a location sleeve, a location piece, a return spring and a lower adjustment shaft; the lower adjustment shaft penetrates into an inner hole of the worm and the lower mounting hole; an open slot is formed at the upper end head of the lower adjustment shaft; the location sleeve is fixed on a side wall of the housing by the location piece; location grooves are uniformly formed in an inside wall at the lower end part of the location sleeve; the return spring is arranged between the upper adjustment shaft and the lower adjustment shaft; a connecting part is arranged at the lower end part of the upper adjustment shaft; the middle upper part of the connecting part of the upper adjustment shaft is clamped into the location groove by the action of elasticity of the return spring; and the middle lower part of the connecting part of the upper adjustment shaft is clamped at the upper part of the open slot by the action of the elasticity of the return spring. The location sleeve of the arm is fixed on the housing and is not directly contacted with the upper adjustment shaft, so that the damage of the location piece due to an axial acting force during user adjustment is avoided, and a brake system is securer and safer.

The invention discloses a gear synchronous displacement modular expansion joint which comprises bridge main bodies arranged at intervals, a displacement box fixedly arranged at the lower part of the two bridge main bodies, a horizontal cross beam which extends across the gap between the main bodies of the bridge along the length direction of the bridge main body arranged between the two relative displacement boxes; the cross beam is provided with a middle beam which is perpendicular to the cross beam and extends along the width direction of the bridge main body; the lower surface of the middlebeam is fixedly provided with a gear protection box, an expansion joint sliding connection device is arranged in the gear protection box, and two ends of the expansion joint sliding connection deviceare respectively fixedly connected with a rack fixing part embedded in the bridge main body. The device has the advantages of simple structure, convenient maintenance and disassembly, and the expansion joint sliding connection device can realize the free expansion and contraction movement of the expansion joint when the stress of the two ends of the bridge main body is not uniform, and the problem of easy damage due to uneven stress is overcome. The gear synchronous displacement modular expansion joint is suitable for use as a connecting device in a bridge expansion joint.

An automatic control system of mechanical press features that the rotary transformer is used as the sensor of crankshaft angle and slide blockí»s stroke, its encoder is the sensor of die height regulation, and the minimal single-chip computer system with the special control software is used for the logic control to overall units of mechanical press and their functions. Its advantages are simple structure and high reliability.

The invention discloses a metallic knit glove and a making method thereof, which belong to the technical field of appliances for labor protection. By multiply drawing and softening common metal wires, the metal wires are ductile, soft and anti-rupture, can be used for knitting and are highly elastic, so that the problems of proneness to breakage, roughness, crimping and the like in knitting are overcome. By means of sand washing and lasted formation with an eversible mould, quality is met, production efficiency is improved, unit production cost is reduced, and the metallic knit glove is suitable for large-scale popularization and batch production.

The invention relates to a solid naphthalocyanine device with excellent optical limiting properties. The device is made by the following steps: adding tetraethoxysilane, diglycidyl ether propyltrimethoxy siloxane, analytically pure ethanol and acidic aqueous solution to a reactor; stirring in an enclosed reactor for 2-3h, then opening the reactor and continuing stirring for 1-2h; adding a naphthalocyanine solution and stirring to cause the mixture to become viscous; transferring the viscous mixture to a mould, and taking out after drying to obtain the novel solid naphthalocyanine device with optical limiting properties. The device is made by an organosilicon modification method combined with doped inorganic salt, and by doping naphthalocyanine with a larger pi electron conjugated system to form a continuous random network system with bonded chemical bonds of organic components and inorganic components instead of physical hybrid. The device has good laser resistance and excellent optical limiting properties.

The invention discloses a micro-grid operating inverter grid-connection and off-grid smooth switching circuit and a control method of the micro-grid operating inverter grid-connection and off-grid smooth switching circuit. The micro-grid operating inverter grid-connection and off-grid smooth switching circuit comprises a micro-grid operating inverter, a three-phase grid and a local alternating-current load, wherein the three-phase grid and the local alternating-current load are connected with the micro-grid operating inverter. The micro-grid operating inverter grid-connection and off-grid smooth switching circuit and the control method of the micro-grid operating inverter grid-connection and off-grid smooth switching circuit overcome the defects that the reliability is low, the inverter can be damaged easily and the safety performance is poor in the prior art and have the advantages that the reliability is high, the inverter is not prone to damage, and the safety performance is good.

The invention relates to the field of laser tailored welding, in particular to a laser butt welding device for automobile parts, which comprises roller tables, at least one clamping element, a laser welding head, upper supports, cylinders and gas sacs. The roller tables are used for conveying and placing steel plates, the clamping elements are mounted on the roller tables and used for fixing and placing the steel plates on the roller tables, the laser welding head is welding the two steel plates at a welded position of the two steel plates, the upper supports and the cylinders are positioned above the clamping elements, the clamping elements can be clamped so as to leave away from the steel plates when the cylinders move, each gas sac is positioned between the corresponding upper support and the corresponding clamping element, and the clamping elements rotate around pivots to press the steel plates after the gas sacs are filled with gas and expanded. The laser butt welding device has the advantages that the laser butt welding device can be easily integrated into a production line to realize butt welding of steel plates in a large batch, the steel plates can be fixed by the aid of dowels capable of vertically moving or the clamping elements, tailored welding seams are reduced, problems that a system runs unreliably and is easy to damage due to a single fixing mode by the aid of clamping elements in the prior art are solved, and welding quality is improved.

The invention discloses a hand-operated adjusting arm capable of completely locking an adjusting shaft and a worm. The hand-operated adjusting arm comprises a housing, a worm wheel, a worm, an adjusting shaft and a large spring, wherein a mounting hole is formed in the housing, the lower port of the mounting hole expands to form an enlarged part, two small steel beads are symmetrically fixed on the upper end face of the enlarged part, a ring-shaped protrusion is arranged at the lower end part of the adjusting shaft, a plurality of concave slots are formed in the ring-shaped protrusion, a threaded segment is tapped at the upper end part of the adjusting shaft, the large spring is sleeved on the part of the adjusting shaft at the upper end part of the mounting hole, the lower end face of the large spring is leaned against the upper end face of the worm, the adjusting shaft is provided with a threaded cap, and after the threaded cap is locked in place, the large spring compacts the worm statically and simultaneously the concave slots are tightly attached to the surfaces of the small steel beads. The hand-operated adjusting arm can lock the worm and the adjusting shaft in both the radial and the axial directions to achieve the purpose of two-way locking, so that the automobile brake system is more secure and safe. The hand-operated adjusting arm has simple structure and low manufacturing cost and is very convenient to operate.

The invention discloses a glass storage frame. The glass storage frame comprises a base (1), first stop blocks (2), second stop blocks (3), first back boards (4) and second back boards (5). The first stop blocks (2) and the second stop blocks (3) are arranged on the two opposite ends of the base (1) respectively. The first ends of the first back boards (4) are fixedly connected to the first ends of the second back boards (5). The second ends of the first back boards (4) and the second ends of the second back boards (5) are fixedly connected to the base (1). The included angle between the first ends of the first back boards (4) and the first stop blocks (2) and the included angle between the second ends of the first back boards (4) and the first stop blocks (2) are both obtuse angles. The included angle between the first ends of the second back boards (5) and the second stop blocks (3) and the included angle between the second ends of the second back boards (5) and the second stop blocks (3) are both obtuse angles. By means of the glass storage frame, the problem that damage is likely to happen in the glass transport process in the prior art is solved, and storage and transportation of glass are facilitated.

The invention provides a multifunctional steam trap which comprises a valve body, a valve seat, a function switching assembly, a valve deck, a bottom end cover, a drainage function module and a valveelement. An inlet and an outlet are formed in the valve body, a plurality of fluid channels communicated with the inlet and the outlet are formed in the valve body, the valve seat movably penetrates through the top of the valve body, and the valve deck covers the top of the valve seat; one end of the hydrophobic function module abuts against the valve deck, the other end of the hydrophobic function module is connected with the valve element, and the valve element can be driven to move to abut against the valve seat or be separated from the valve seat; the bottom end cover is arranged at the bottom of the valve body, and the function switching assembly is arranged on the valve seat and stretches across each fluid channel; and when the valve seat moves, the function switching assembly can bedriven to move to enable any one fluid channel to be in a connected state or all the fluid channels to be in a cut-off state, so that the multifunctional steam trap valve is controlled to be switchedin different function modes. According to the multifunctional steam trap, a plurality of functional modes can be manually switched, the functions of cut-off, drainage and conduction are achieved, anddifferent functional modes can be selected and used according to actual needs.

The invention relates to a grafting modification method of inorganic macromolecular compounds, and especially relates to a grafting modification preparation method of ammonium polyphosphate. The method comprises the steps that: a grafting agent is dissolved in a solvent, and the solution is heated to a temperature of 45 to 60 DEG C; ammonium polyphosphate with a polymerization degree greater than 1000 is added to the solution while stirring; the mixture is subject to a reaction for 1 to 2.5 hours; the resulting solution is cooled and stood, such that the solvent is removed; the resulting material is dried by baking, and is pulverized, such that a finished product of modified ammonium polyphosphate is obtained. According to the invention, organic molecules and ammonium polyphosphate are subject to a grafting reaction. In prior arts of surface coating methods, coated films are easily damaged during processing procedures. With the technical schemes of the present invention, the problem is overcome, and defects of ammonium polyphosphate are overcome.

The invention discloses a chip which can be applied to three-dimensional cell culture and a preparation technique thereof. The chip mainly comprises a contour microcolumn array 2 and a recess 4, wherein the recess 4 is formed at the top end face of the contour microcolumn array 2; the chip is prepared by MEMS (Micro-Electro-Mechanical System) and replication molding technologies. The chip and thepreparation technique thereof have the advantages that 1) the three-dimensional structure of the chip can provide functional three-dimensional growth conditions for cells, and can provide a substrate,uniform in hardness, for adhesion and spreading of the cells due to the contour microcolumn array 2; 2) the three-dimensional structure of the chip is open type, thereby being compatible with commonmicroscopic observation techniques; 3) a high-hardness material is used as a template substrate 6 during chip preparation, overcoming the problem that soft materials are easily damaged; 4) pits are formed in the template substrate through an isotropic micromachining technology, and the process controllability is high; 5) the microcolumn array is prepared by reaction of inductively coupled plasmas(ICP), the height of microcolumns is easy to control, and the defects such as lodging due to overlarge depth-to-width ratio of the microcolumns are avoided.

The cipher pad lock consists of one U-shaped lock rod, one lock body, at least two dial assemblies, at least two dial support assemblies and one cover mainly. The U-shaped lock rod has hooks on two ends and one notch; the lock body has dial seats with dial cavity, number window and locating pin cavity; each of the dial assemblies inside the dial cavity consists of one dial, one number disc and one pair of dialing teeth; each of the dial support assemblies inside the locating pin cavity consists of one spring and one locking pin; and the cover is located in the dial cavity and fixed to the dial seat. The present invention has the advantages of easy change of the cipher, high safety, simple structure and wide application range.

The invention discloses a device and a method for collinear transmission of a two-wire system data/power supply for supplying power for an overall intelligent terminal. The device comprises a plurality of network units which are arranged at different levels, wherein each network unit comprises a host and n extension units which are matched with the host; the host is connected with each of the n extension units through a two-core bus; the functions of supplying power from the host to the n extension units and transmitting data in two ways are realized; n is a natural number. According to the device and the method for the collinear transmission of the two-wire system data/power supply for supplying power for the overall intelligent terminal, the defects that a circuit is complex in structure, liable to damage, low in power supply power, narrow in application range and the like in the prior art are overcome; the aims that the circuit is simple in structure, unlikely to damage and capable of supplying power for the extension units at high power are fulfilled.

The invention discloses a heat supply control valve with an accurate metering function. The heat supply control valve with the accurate metering function comprises pipeline connectors, an electromagnetic flowmeter, an electric ball valve, a water inlet temperature sensor, a water return temperature sensor and a control device, wherein when the device is transversely placed as a whole, the first pipeline connector, the electric ball valve, the electromagnetic flowmeter and the second pipeline connector are sequentially connected from left to right; and the control device is fixedly connected to the upper side of the electric ball valve, and a through hole for the water inlet sensor to insert is formed in the lower side of the electric ball valve. According to the invention, the electric ball valve, the electromagnetic flowmeter, the water inlet temperature sensor, the water return temperature sensor and a measurement control circuit are integrated to form a closed-loop feedback control system, constant-flow heat supply or constant-power heat supply of the heat supply system can be realized, and the heat supply control valve with the accurate metering function is the optimal product for achieving balance of a heat supply pipe network and reasonable heat distribution, and has very positive significance on energy conservation and consumption reduction of the heat supply system.

The invention discloses a user-friendly chair which can be lifted up and down in time. The user-friendly chair comprises a base frame, a seat face and a backrest, wherein, the seat face is connected with a straight lifting casing pipe downwards; the straight lifting casing pipe is sheathed on an upright with which the base frame is connected upwards and can go up and down; one side of the upright is evenly provided with a plurality of lifting inclined teeth with the same size and shape from down up; a spring pin seat is arranged at the lower part of the lifting casing pipe corresponding to the lifting inclined teeth; spring pins are positioned on the spring pin seat; spring pin heads are blocked in the lifting inclined teeth under the spring force while spring pin tails movably coordinate with a lifting switch mechanism. The user-friendly chair of the invention has reliable quality and low cost with no hydraulic oil to cause the indoor air pollution; the height of the chair seat face can be adjusted along with the height of users in time and prohibit the adjustment while the chair backrest can also be adjusted back and forth and prohibit the adjustment; personal clothes can also be conveniently hung on a hanger of the backrest. Therefore, the user-friendly chair of the invention can not only provide comfort and heath care, but also have convenient use and is especially appropriate for students to attend class in the classroom and learn at home and also appropriate for a majority of users with different genders and ages and heights.

The invention provides a high-power illuminating device assembled by low-power LEDs (Light Emitting Diodes). The invention relates to an LED illuminating device which comprises a direct-current constant-voltage power supply, a circuit board for high-density plug-in LEDs and a heat radiation device, wherein the voltage provided by the direct-current constant-voltage power supply is 250 volt, and the current provided is 0.44-1.1 ampere; the connection manner of the LEDs inserted on the circuit board is that a first quantity of LEDs are connected in series to form an LED lamp bank, then a second quantity of LEDs are connected in parallel to form a whole LED lamp module circuit, wherein the first quantity of LEDs has to meet the condition that the voltage sum of the first quantity of serially-connected LEDs is equivalent to 250 volt; and the second quantity of LEDs is determined according to the total power required by the LED illuminating device. The high-power illuminating device overcomes a series of defects that a high-power LED street lamp has quick light decay, insufficient brightness and high price, is easy to damage and the like and has the advantages of high brightens, high reliability and reasonable cost, and the power factor is kept within the scope of 0.95-0.98.

The invention discloses a large-size intercooler and belongs to the field of structure design of the intercooler. The large-size intercooler provided by the invention comprises a cooling body with a built-in cooling core, wherein an upper sealing head is arranged on a top surface of the cooling body in a packaging manner; a lower sealing head is arranged on a bottom surface of the cooling body in a packaging manner; a plurality of air inlet pipes are arranged on the upper sealing head; a plurality of air outlet pipes are arranged on the lower sealing head; at least one vertical sealing strip is arranged in the cooling core. Through the built-in vertical sealing strip, the problem of easiness in damage of the intercooler caused by lower structural strength under a larger size condition in the prior art is solved, the structural strength of the large-size intercooler is increased, the quality is ensured, the cooling efficiency is better, the cooling efficiency is higher, the structure is simple and the large-size intercooler is easily popularized and applied in wide scope.

The invention relates to a water reservoir loach catching cage device. According to the device, three loach inlets are provided on one side of a steel framework and net sheet walls. Steel barbs are respectively arranged on the three loach inlets. The steel barbs are fixed with the net sheet walls. Loach storage bag inlets are respectively arranged on the two opposite end faces of the net sheet walls wrapping the steel framework and at the middle part of the steel framework and the net sheet walls. Internal barbs are connected to the loach storage bag inlets. The internal barbs are connected with internal barb ports. The internal barb ports are connected with internal barb port drawstrings. Loach storage bags are respectively arranged on the outer side framework of the two opposite end faces of the net sheet walls wrapping the steel framework and at the middle part framework of the steel framework, and on the outer sides of the internal barbs. The loach storage bags are formed by loach storage bag net ropes and net sheet walls, and extend to loach fetching ports. The internal spaces of the loach storage bags are supported by steel supporting rings. Three bait bags are arranged at the bottom of the steel framework and on the net sheet wall. The three bait bags are respectively fixed by bait bag drawstrings.

The invention provides a composite glove, which comprises a glove outer layer and a glove liner. Made; the surface of the glove lining is coated with a nitrile latex layer, and the surface of the nitrile latex layer is coated with a water-based polyurethane layer; the surface of the water-based polyurethane layer is coated with a fluororubber layer. The invention adopts multiple drawing and softening techniques, overcomes the problems of fragility, roughness, curling and the like in the knitting manufacturing process, and improves the mechanical properties of the glove. Nitrile rubber layer, water-based polyurethane layer and fluororubber layer are used to combine the properties of each rubber, so that the surface of the composite glove lining has excellent resistance to strong acid, strong alkali, high temperature and corrosion resistance, and at the same time it feels better during use.