32results about How to "Implement variable" patented technology

The invention relates to a linear motor-driven plunger pump. The mechanical part of the plunger pump comprises a cylinder body I, a cylinder body II, flow distribution valves, an in-sucking communication pipe, out-pressing communication pipes, compacting flanges, plunger rods, linear motor stators, linear motor rotors and guide rails; and the electric part mainly consists of linear motors, a controller, drivers and a position feedback device. The linear motor-driven plunger pump is characterized in that a group of coil-type stators drive a permanent magnet rotor in a combinational way, thus realizing high thrust output of the linear motors. Each flat-type linear motor drives two plungers at the two ends of one plunger rod, and while the double-action plunger rod reciprocates, one end of the double-action plunger rod sucks water and at the same time the other end of the double-action plunger rod presses water. The two cylinders realizes the effective communication between the water sucking loop and water pressing loop of the plunger pump by means of the in-sucking communication pipe and the two out-pressing communication pipes. Each plunger hole is communicated with a flow distribution valve consisting of an in-sucking valve and an out-pressing valve. The electric part controls the out-of-phase movement of the linear motors, thus ensuring the stable combinational flow output of the pump. The linear motor-driven plunger pump disclosed by the invention has the advantages of less mechanical transmission links and high system efficiency and reliability.

The invention discloses a vertical vacuum sputtering coating production line. The vertical vacuum sputtering coating production line comprises a transmission assembly line and a coating assembly line, wherein the coating assembly line is connected with the transmission assembly line. The transmission assembly line comprises a rail, at least one transmission trolley and at least one substrate carrying device. The transmission trolley runs on the rail and transmits the substrate carrying device. The coating assembly line comprises an inlet cavity, an inlet transition cavity, an inlet buffer cavity, a coating cavity, an outlet buffer cavity, an outlet transition cavity and an outlet cavity. Compared with the prior art, the transmission assembly line and the coating assembly line are connected end to end to form an annular assembly line, so that the occupied area is saved; intelligent control is adopted for substrate transmission in the whole coating production line, so that manpower and material resources are saved, and production efficiency is improved; all cavities in the coating assembly line are replaced or added according to requirements of products, so that the whole coating production line meets the requirements of various coating processes; andthe service life is prolonged, resources are saved, and therefore the vertical vacuum sputtering coating production line has quite wide application prospects.

An intelligent construction platform for construction of a super high-rise building comprises a support and jacking system, a steel frame system and a template system, wherein the support and jacking system is connected with a shear wall in a support manner; the steel frame system is connected with the support and jacking system in a support manner; the template system is hung on the steel frame system; the steel frame system comprises a main platform rack with a rectangular platform surface, an external frame located on the four sides of the main platform rack, a hanging rack, an internal support upright, and an external support upright arranged at the lower part of the external frame; the hanging rack and the internal support upright are arranged at the lower part of the main platform rack; the support and jacking system consists of an internal frame support and jacking system and an external frame support and jacking system; the internal support upright is connected with an internal shear wall in a support manner by the internal frame support and jacking system; and the external support upright is connected with an external shear wall in a support manner by the external frame support and jacking system. The construction platform can climb quickly and conveniently, has a better adaptability to the change in the cross section of a core tube shear wall, and can reduce conflicts among a formwork system, and steel structure construction and vertical transportation facilities in the process of core tube structure construction.

The invention provides a method for adjusting impedance matching and an impedance matching circuit. The method comprises the following steps: acquiring load impedance and source impedance of the impedance matching circuit; calculating input impedance according to the load impedance; if the absolute value of a first difference value between the resistance value of the input impedance and the resistance value of the source impedance exceeds a first preset value, and/or the absolute value of a second difference value between the reactance value of the input impedance and the reactance value of the source impedance exceeds a second preset value, outputting an adjusting signal to adjust the number of accessed capacitors and inductors in the impedance matching circuit, the absolute value of the first difference value does not exceed the first preset value, and the absolute value of the second difference value does not exceed the second preset value. According to the impedance matching method and device, the number of the capacitors and the number of the inductors needing to be connected are obtained through calculation, the actual connection of the inductors and the capacitors in the impedance matching network is changed according to the number, impedance matching is achieved, the capacitors and the inductors can be rapidly and accurately changed by changing the connection number of the capacitors and the inductors, and the impedance matching problem is solved.

The invention relates to an anti-counterfeiting safety line, in particular to a variable local holographic anti-counterfeiting safety line and a preparation method thereof. The variable local holographic anti-counterfeiting safety line includes a plastic film layer, a permanent embossing information layer and a positioning embossing layer which are arranged in sequence from top to bottom; the lower portion of the positioning embossing layer is sequentially provided with a local hollow printing layer and a local aluminum coated layer which contain partial variable information respectively, thepartial variable information is combined to form complete variable information, each piece of partial variable information includes a two-dimensional code, a release layer is arranged between the local hollow printing layer and the local aluminum coated layer, and the lower portion of the corresponding local aluminum coated layer is provided with a hidden ink layer. According to the anti-counterfeiting safety line, a holographic pattern is combined with a printing pattern, the variable information has a holographic alumite effect and is not easy to imitate, identification is simple, the anti-counterfeiting effect is good, the variable information is destroyed when the safety line is taken out from paper, and secondary use can be effectively prevented. The preparation method is scientific,reasonable, simple and easy to perform.

The invention discloses an RCS-variable corner reflector and an unmanned helicopter target drone. The reflector comprises a concentric baffle, an eccentric baffle and a fixed connecting part; the concentric baffle is detachably connected with the fixed connecting part; a first corner area is formed between the movable portion of the concentric baffle and the surface of the fixed connecting part; the movable portion of the concentric baffle adjusts the included angle formed with the surface of the fixed connecting part to change the size of the first corner area; the fixed portion of the concentric baffle is detachably connected with the fixed portion of the eccentric baffle; a second corner area is formed by the movable portion of the eccentric baffle and the surface of the fixed connecting part; and the movable portion of the eccentric baffle adjusts the included angle formed with the surface of the fixed connecting part to change the size of the second corner area. By changing the angle between the concentric baffle and the fixed connecting part or changing the angle between the eccentric baffle and the fixed connecting part, the RCS can be variable.

The invention relates to an anti-fake marker and in particular relates to a variable partial holographic logic corresponding information anti-fake marker and a manufacturing method thereof. The anti-fake marker comprises a plastic membrane layer, a two-dimensional code printing layer, a permanent mold pressing information layer, a positioning mold pressing layer, a color layer and an adhesive layer which are arranged in sequence from top to bottom, wherein a partial hollow printing layer and a partial aluminum plating layer are sequentially arranged below the positioning mold pressing layer; the partial hollow printing layer and the partial aluminum plating layer respectively comprise a part of variable information and form complete variable information after being combined; a two-dimensional code of the two-dimensional code printing layer has a corresponding relationship with the variable information; the variable information is a variable graphic diagram and/or variable digits; and an invisible ink layer is arranged below the partial aluminum plating layer correspondingly. With the combination of holographic patterns and printing patterns, the variable information has a holographic alumite effect, the two-dimensional code has the corresponding relationship with the variable information, and is not easy to imitate, simple to identify, good in anti-fake effect and high in anti-transferring property, and the manufacturing method of the anti-fake marker is scientific and reasonable and simple and feasible.

The invention discloses a variable jaw protection type helmet. The helmet comprises a helmet shell body and a jaw protection structure hinged to the lower portion of the helmet shell body, the jaw protection structure comprises two jaw protection plates arranged on the left side and the right side of the helmet shell body in pairs and a middle baffle located between the two jaw protection plates, the middle baffle is arranged on the two jaw protection plates in a sliding mode, a flexible jaw protection pad is slidably arranged on at least one jaw protection plate, a linkage flat plate is fixedly arranged on the surface, away from the human face in the helmet shell body, of the flexible jaw protection pad, a connecting rod is fixedly arranged on the linkage flat plate, and a guide blind hole of the connecting rod is formed in the middle baffle; and the jaw protection plate provided with the flexible jaw protection pad is provided with a sliding cavity used for being in linkage with the flat plate and the flexible jaw protection pad to slide. The jaw protector can be changed, the fitting degree of the jaw protector is adjustable, and the effect of protecting the lower jaw of a wearer is good.

The invention discloses a first-stage variable pump control system with a simplified structure. The system comprises an oil pump, a pump outlet, a main oil passage and an oil sump, the oil pump comprises a pump body, a feedback pressure control cavity, a variable sliding block, a variable spring, an oil inlet and an oil outlet, the oil sump is connected to the oil inlet through an oil path, and the oil outlet communicates with the oil sump through the pump outlet and the main oil passage; an oil through groove or an oil through hole is formed in the position, close to the oil outlet, of the variable sliding block and used for introducing pressure oil of the oil outlet into the feedback pressure control cavity; when the oil pressure of the oil outlet is increased, the oil pressure in the feedback pressure control cavity is correspondingly increased; and when the oil pressure reaches a set variable pressure point, the oil pressure in the feedback pressure control cavity can push the variable sliding block to overcome the elastic force of the variable spring to deflect, so that the output displacement of the oil pump is reduced, the first-stage displacement is variable, the variable response is more sensitive, an oil circuit can be actively protected if the oil circuit pressure is too high, and therefore a safety valve mechanism does not need to be designed.

The invention discloses an upper limb rehabilitation mechanical arm capable of changing the shoulder center. The upper limb rehabilitation mechanical arm comprises a base, a supporting frame, a shoulder joint, a shoulder motor, a shoulder connecting rod, a 3-DOF parallel hydraulic platform, a big arm connecting rod, a big arm, an elbow joint and a wrist joint, and the shoulder joint comprises a transverse beam and a rotary shaft; the shoulder motor comprises a motor, a fixed base and a bevel gear; the 3-DOF parallel hydraulic platform comprises an upper bottom plate, three telescopic hydrauliccylinders and a lower bottom plate; the big arm comprises a holder, a driving motor, an upper connecting plate and a rotating shaft; the elbow joint comprises a small driving motor, a big driving motor, a small holder, a large holder and a lower connecting plate; the wrist joint comprises a driving motor, a holder, a wrist baffle, a belt pulley, a wrist connecting rod, a bolt connecting rod and abolt. According to the upper limb rehabilitation mechanical arm, the shoulder center can be changed so that the shoulder joint can move in any direction no matter where the big arm and the forearm ofthe arm are, and the upper limb rehabilitation mechanical arm has the advantages of being compact in structure, high in practicability and the like.