429results about How to "Won't fail" patented technology

The invention relates to an on-orbit maintenance method of satellite-borne embedded software for carrying out on-orbit maintenance on embedded software on a spacecraft through an increment uploading manner. The method comprises the following steps: (1) generation of increment uploading data: after determining that the on-orbit maintenance is carried out to the satellite-borne software, encoding and linking the updated satellite-borne embedded software to generate a binary file, comparing the updated binary file with the binary file corresponding to a program running on the orbit, and generating an increment file; (2) uplink loading of the increment uploading data: loading the increment file sub-package from the ground into a satellite-borne storage area, receiving a pack of uploading pack, and extracting the effective data from the uploading pack and writing the effective data into a preset increment file storage area until all the uploading packs are received; and (3) recombination running of increment uploading data: carrying out comparing and recombination on the uploaded increment file with the binary file primarily stored in the program storage, generating a new program, loading the new grogram into a memory, executing the new program, and finishing the on-orbit maintenance of the embedded software.

The invention relates to a high-viscosity and low-melting-point metal conductive paste and a preparation method and an application thereof. The high-viscosity and low-melting-point metal conductive paste is characterized in that the metal conductive paste is prepared by uniformly mixing low-melting-point metal and metal powder based on a certain proportion and by a certain method. The metal powder can improve the viscosity and electrical conductivity of the low-melting-point metal. By adopting the high-viscosity and low-melting-point metal conductive paste of the invention, the contact resistance between electronic components can be significantly reduced, the contact surface temperature of electronic components can be reduced, and the working life of electronic components can be prolonged as much as possible. The high-viscosity and low-melting-point metal conductive paste of the invention has high electrical conductivity, a remarkable electric conduction effect and a long service life, and can be widely used in the technical fields of electric power and energy.

The invention provides a washing machine for an electric detection for the weight unbalance owing to deflection of the washings to one side or the like, wherein the abnormal vibration of the longitudinal shaking is detected by a first detection mechanism and a second detection mechanism and the abnormal vibration of the transverse shaking in the high speed rotation is detected by a third detection mechanism. The first detection mechanism determines whether a washing dewatering tank has the unbalance by comparing a difference of the rotation speed at a prescribed interval and a prescribed threshold when the rotation speed of a motor is increased to a low speed superior target rotation speed. The second detection mechanism determines whether the washing dewatering tank has the unbalance by comparing a difference between a duty ratio reduction and the reference duty ratio reduction and the threshold, wherein the duty ratio is used for maintaining the low speed superior target rotation speed. In the third detection mechanism, the change of the duty ratio in the high speed rotation is observed and threshold is switched based on the reference duty ratio so as to stop control of the motor.

The invention discloses a reduction clutch for a washing machine and the washing machine. The reduction clutch comprises an input shaft, an input shaft sleeve, a brake wheel, a reducer, a dewatering shaft, an output shaft, a clutch device and a shell. The input shaft sleeve is installed on the input shaft in a sleeving mode, the dewatering shaft is installed on the output shaft in a sleeving mode, the reducer is installed on an inner cavity of the brake wheel, and the input shaft, the input shaft sleeve, the brake wheel and the output shaft are connected with the reducer respectively. The reducer is a double planetary gear train and comprises a first planetary gear train and a second planetary gear train, and the first planetary gear train and the second planetary gear train use a same planet carrier. The input shaft sleeve and the second planetary gear train are connected into one, the dewatering shaft and the brake wheel are connected into one, the output shaft is connected with input shaft in a transmission mode through the first planetary gear train, and the dewatering shaft is connected with the output shaft in a transmission mode through the brake wheel and the second planetary gear train. The conversion between the washing condition and the dewatering condition is controlled through the clutch device. The reduction clutch for the washing machine and the washing machine have the advantages that the structure is simple and compact, the manufacturing cost is low, the transmission is safe, reliable and efficient, the service life is long, and the noise is low.

The invention discloses cleaning-free solid-state scaling powder for aluminum low-temperature soldering and a preparing method. According to the weight percentage, the cleaning-free solid-state scaling powder comprises raw materials of 6.5%-18% of metal film-forming agents, 5%-18% of organic carriers, 0.1%-1.8% of corrosion inhibition agents and the allowance of film removing active agents. The film removing active agents are composite salt of organic amine and acid. The cleaning-free solid-state scaling powder is suitable for lead-free solder wires with solid-state scaling powder contained in a core, and the powder can be used for automatic welding, manual soldering iron welding or flame spraying welding. The core-contained solder wires prepared with the scaling powder have the advantages that tinning speed is high, splashing is low, irritating smoke is avoided, post-welding residues do not have corrosiveness, a welding point has great electrochemical corrosion resistance, a contact service time is long, the wires are suitable for assembling welding of an aluminum coated layer circuit board and an aluminum soldering pin electronic element and brazing of an aluminum electric cable wire, an aluminum radiator and aluminum heat exchanging equipment.

The invention provides an excavator and a bucket tooth connection assembly thereof. The bucket tooth connection assembly comprises a tooth top, a tooth holder, a pin bush and a tooth pin, wherein the tooth top is provided with an inner cavity and a first mounting hole; the first mounting hole is formed on the wall of the inner cavity; the tooth holder is provided with a head part and a second mounting hole; the second mounting hole is formed in the head part; the head part is matched with the inner cavity; the pin bush is provided with a pin bush body, a reinforcing part, a hinge pin hole, a placement groove, a positioning groove and a guide part and is arranged in the second mounting hole; the tooth pin is provided with a pin body and a hinge pin; the hinge pin is provided with a convex tongue part; the tooth pin is inserted into the first mounting hole; the hinge pin is inserted into the hinge pin hole; the tongue part rotates the tooth pin after passing through the placement groove; the tongue part passes through the guide part to be clamped in the positioning groove so as to fixedly connect the tooth top and the tooth holder. The bucket tooth connection assembly provided by the invention can provide excellent support in the case of impact and vibration; technical difficulty is reduced when the tooth top and the tooth holder are made; matching accuracy is improved; the bucket tooth connection assembly is convenient to manufacture and is convenient to install and disassemble; meanwhile, the phenomenon that the tooth top is lost in the use process is avoided.

The invention discloses a supercharged diesel engine EGR (Exhaust Gas Recirculation) system intelligent cooling device, comprising an EGR mixer (3), a mechanical water pump (4), an electric control fan (5), a radiator (6), a thermolator (11), an EGR cooler (13), an electric control EGR valve (14), an engine ECU (Electronic Control Unit) (18), a temperature sensor (19), an exhaust gas intercooler (8) and an electric control two-position three-way valve (12), wherein an inlet of the electric control two-position three-way valve (12) is communicated with a gas outlet of the EGR cooler (13); outlets in two ends of the electric control two-position three-way valve (12) are respectively communicated with an exhaust gas inlet of the EGR mixer (3) and a gas inlet of the exhaust gas intercooler (8); a gas outlet of the exhaust gas intercooler (8) is communicated with the exhaust gas inlet of the EGR mixer (3); the electric control EGR valve (14), the electric control fan (5), the temperature sensor (19) and the electric control two-position three-way valve (12) are respectively connected with the engine ECU (18) electrically.

The invention provides a self-fire prevention tunnel concrete lining structure based on the microcapsule technology. The self-fire prevention tunnel concrete lining structure comprises a common layer and a self-fire prevention layer, wherein the common layer is a conventional concrete layer, the self-fire prevention layer is formed by concrete mixed with reinforced fibers, anti-burst fibers and hot melting microcapsules, and each hot-melting microcapsule comprises a capsule shell and fireproof media filling the capsule shell. Compared with a common reinforced concrete lining structure, the self-fire prevention tunnel concrete lining structure has the advantages that the self-fire prevention ability of the tunnel lining structure is brought into full play while structural size is not changed and structural strength and rigidity are not lowered, synchronization of burst prevention and thermal insulation, the synergic effect of fire prevention and bearing and automatic fire prevention triggered by fire heat are achieved, and the tunnel lining structure is good in durability, high in long-term economic benefits and suitable for the whole life cycle fire prevention design of tunnel concrete linings.

The invention discloses an atomization device and an ultrasonic humidifier, wherein the atomization device comprises a transducer, an atomization enhancing part and a buoyancy part, wherein the atomization enhancing part is arranged in liquid above the transducer in a floating manner and comprises a guide cylinder with a through hole, an axial center line of the through hole is consistent to an axial center line of the transducer, and the buoyancy part is connected with the guide cylinder and can floats on the surface of the liquid above the transducer. According to the invention, the existing ultrasonic humidifier is revolutionarily improved, when the liquid above the transducer is at any liquid level height, the atomization device and the ultrasonic humidifier provided by the invention can generate good atomization effect, thereby being adapted to a use environment with any liquid level height, greatly increasing the atomization efficiency, and having the advantages of high adaptability, simple structure, low material consumption, low manufacture cost, convenience in installation, easiness in cleaning and the like.

The invention provides a vibration-proof device which guarantees that vibrating equipment supported by the vibration-proof device cannot be damaged and have faults even if being applied with strong horizontal force during earthquake, and the vibrating equipment can also have the same vibration-proof effect after the earthquake as that before the earthquake. The vibration-proof device used for reducing the transmission of vibration direction supporting bodies of the vibrating equipment comprises a base plate (2), a cover plate (3), a vibration absorption component (5) and a connecting and guiding component (6), wherein the base plate (2) is arranged on the supporting bodies such as a foundation; the cover plate (3) is configured above the base plate (2) and used for mounting the vibrating equipment; the vibration absorption component (5) is inserted among the plates and can be elastically deformed up and down; the connecting and guiding component (6) is used for connecting the base plate (2) and the cover plate (3) in a mode of not separating the base plate (2) and the cover plate (3) by more than a preset distance and guiding the cover plate (3) supported by the vibration absorption component (5) to have a displacement along the vertical direction; and a vibration resistant mechanism (7) is arranged in the connecting and guiding component (6) and used for limiting the relative horizontal displacement of the base plate (2) and the cover plate (3) within a certain distance.

The invention relates to a high-temperature high-pressure self-sealing dual-plane gate valve, which comprises a valve, a valve cover, an operation screw and an operation hand wheel on the valve cover. Wherein, the valve has a gate plate connected to the operation screw, and sealing surface matched with the gate plate; said valve comprises two separate gate plates and a central pushing rod; two gate plates are opposite, whose outer sealing surfaces are parallel, and inner surfaces are uniform distributed with several compress springs; the central pushing rod via its lower end and the clamp groove at the inner sides of two gate plates is clamped between two gate plates, while the upper end via the connector is connected to the operation screw. Via the operation screw, the pushing rod via its lower end can move said two gate plates up and down along the sealing surface; and the compress spring compresses the two side sealing surfaces of gate plates on the sealing surface of valve, to confirm the sealing effect and prolong the service life.

The invention discloses a data paging method. The method comprises: obtaining a page code X of a to-be-displayed webpage; calculating the total page number Y of resource data pages of the to-be-displayed webpage; determining a page code of a target data page corresponding to the page code X of the to-be-displayed webpage according to a preset corresponding relationship; and sending target data corresponding to the target data page to a client. Correspondingly, the invention further discloses a data paging apparatus. Compared with the prior art, the technical scheme provided by the invention can avoid the occurrence of an avalanche phenomenon of a cache, so that the cache hit ratio of data in each page can be increased, and the performance and data loading efficiency of the cache are improved.

The invention discloses a data management system based on a state machine, which is a data searching and management proposal in a wireless multimedia network, and is mainly used for solving data acquisition and data processing problems in the wireless multimedia network. A data management system in a wireless multimedia sensor network based on the state machine is developed and characterized in that: a search task is formed by various parameters through combination and encapsulation and different search applications are corresponding to different parameter combinations; the functions of network nodes are controlled by the state machine and the function decision of nodes depends on the current state; a primary search task is collaboratively fulfilled by multiple nodes in various states; the whole network has nodes in various states during the life cycle of the network and the same node can only be in one state at a specific time and the state of a node can change with the change of self conditions and transfer from one state to another; nodes of various states can carry out a routing strategy flexibly according to the timeliness and precision requirements of the search task.

The invention discloses a slowdown clutch for a washing machine. The slowdown clutch comprises an input shaft, an input shaft sleeve, a brake wheel, a speed reducer, a dewatering shaft, an output shaft, a lower shell and a clutch device, wherein the speed reducer is installed in an inner cavity of the brake wheel, the dewatering shaft and the brake wheel are connected into a whole, the input shaft, the input shaft sleeve, the brake wheel and the output shaft are all connected with the speed reducer, the speed reducer is a double-planet gear train composed of a first planet gear train body and a second planet gear train body, the input shaft sleeve and a wheel carrier of the second planet gear train body are connected into a whole, and the input shaft sleeve is movably connected with the brake wheel; the clutch device comprises a positioning disc fixedly installed on the lower shell, a torque transmission shaft sleeve fixedly installed on the input shaft, a clutch disc installed on the input shaft sleeve and capable of being connected with or disconnected from the positioning disc and the torque transmission shaft sleeve, and a clutch control mechanism used for controlling the clutch disc to be connected with or disconnected from the positioning disc and the torque transmission shaft sleeve. The slowdown clutch has the advantages of being simple and compact in structure, low in manufacturing cost, safe and reliable in transmission, efficient, long in service life and low in noise.

A fluid pump driven by compressed air comprises a central body, a central shaft, a reversing shaft, membranes, air chambers, fluid chambers, a valve ball, a fluid inlet, a fluid outlet, etc. The central shaft and the reversing shaft are installed on the central body; a membrane is respectively installed at the two ends of the central shaft; the membranes are fixed at the two ends of the central shaft by membrane splints; and the two ends of the reversing shaft are also respectively connected on a left membrane splint and a right membrane splint. The membranes are clamped between a shell and a pump body; and the two membranes are sealed into a left air chamber, a right air chamber, a left fluid chamber and a right fluid chamber between the shell and the pump body; the reversing shaft controls the horizontal movement of a piston and respectively charges the two air chambers, and pushes and presses the fluid chambers by the membranes to lead the fluid to flow from the fluid inlet into the fluid chambers and then out of the fluid outlet. As the fluid pump which is driven by compressed air is provided with the reversing shaft, the movement of the piston is directly controlled by the compressed air but does not fail, and the maintenance and installation are convenient.