54results about How to "Durable and reliable" patented technology

A lock assembly includes a casing containing a cylinder assembly, a rotary bolt driver and a shank inside the casing. The rotary bolt driver has a crossbar to selectively abut two stop blocks formed on a latching disk. Thus the rotational movement of the rotary bolt driver is able to move the latching disk inside the longitudinal chamber so as to secure the shank inside the casing.

The invention discloses a peel-pith-leaf separator of a maize straw. The separator comprises a rack (13) and a power mechanism (12) arranged on the rack and is characterized in that a guiding conveying mechanism, a leaf removing mechanism, a peel-stripping mechanism and an output mechanism are arranged on the rack (13) from front to back and are all in transmission connection with the power mechanism (12). The separator disclosed by the invention specially aims at leaf-removing and pith-stripping works so as to realize the function of peel-pith-leaf thorough separation, and further the peel, the pith and the leaf of the maize straw can be respectively and effectively utilized; besides, the separator disclosed by the invention has the advantages of small mechanical vibration, low noise, less energy consumption, strong practicability, good market prospect and worthy of popularization and application.

A pre-fabricated electrochemical device having a dense electrolyte disposed between an anode and a cathode preferably deposited as thin films is bonded to a porous electrically conductive support. A second porous electrically conductive support may be bonded to a counter electrode of the electrochemical device. Multiple electrochemical devices may be bonded in parallel to a single porous support, such as a perforated sheet to provide a planar array. Planar arrays may be arranged in a stacked interconnected array. A method of making a supported electrochemical device is disclosed wherein the method includes a step of bonding a pre-fabricated electrochemical device layer to an existing porous metal or porous metal alloy layer.

An electronically controlled actuator for controlling a turbocharger has a motor, a speed change mechanism and a position sensor contained in a case consisting of a body and a cover. The driving force of the motor is transmitted through the speed change mechanism to an output shaft to drive the movable vanes of a turbocharger for turning. A first bearing supporting the output shaft for rotation is held on the cover, and a second bearing supporting the output shaft for rotation is held on the body. The position sensor is mounted on the output shaft of the motor. The reliability of the actuator is improved.

An auxiliary power unit (APU) includes a rotary fuel slinger, and a single-spool, two-stage turbine. The rotary fuel slinger receives a rotational drive force from the turbine, and a supply of fuel from a fuel source. The rotary fuel slinger injects the fuel into a combustor as a continuous “fuel sheet.” As a result, fuel mixing and atomization inside the combustor is improved, which reduces emissions and pattern factor, which in turn increases turbine life.

The invention relates to an insulating concrete material and a preparation method thereof. The concrete material is prepared by mixing a cementing material, coarse aggregate, fine aggregate, insulating additive, admixture and water, wherein the using amount of the cementing material is 350 to 700kg / m<3>; the using amount of the coarse aggregate is 850 to 1,150kg / m<3>; the using amount of the insulating additive is 20 to 150kg / m<3>; the admixture in an amount which is 0.2 to 2.0 percent based on the mass of the cementing material is used; and the volume rate of sand is 35 to 52 percent; and the ratio of water to the cementing material is 0.23 to 0.40. The electrical resistivity of the concrete material can be improved obviously, and the insulating concrete material is prepared, and can be used for the field with the insulating requirement on a concrete structure.

The invention discloses a hot dip galvanizing technique for implementing corrosion resistance and rust resistance of a steel tube. The technical scheme is as follows: the hot dip galvanizing technique comprises the following steps: steel tube pretreatment, acid washing, water washing, assisted plating, drying, galvanizing, internal and external blowing, passivation, inspection and packaging. The technique has the following advantages: 1. low treatment cost: the rust resistance cost by hot dip galvanizing is lower than that of other paint coatings; 2. high durability: in a suburb environment, the standard hot galvanizing rust-resistant coating can keep effective for more than 50 years without repair; in urban districts or offshore areas, the standard hot-galvanizing rust-resistant coating can keep effective for more than 20 years without repair; 3. high reliability: the galvanizing coating is metallurgically bonded with the steel to become part of the steel surface, and therefore, the durability of the coating is reliable; and 4. high coating toughness: the galvanizing coating forms a special metallurgical structure capable of bearing mechanical damage in the transportation and use process.

The invention relates to a powdery material spraying pump, which comprises air inlet pipe, a hollow pipe, a pump body, an air closer and a regulating valve, wherein an output opening of the air inlet pipe is communicated with the hollow pipe, one end of the hollow pipe is connected with the air inlet pipe, the other end of the hollow pipe is connected with a spray nozzle, slide iron is fixedly arranged on the hollow pipe, one end of the slide iron is fixedly arranged on the hollow pipe, the other end of the slide iron is arranged on a lead screw in a sleeving way, and the slide iron and the lead screw are screwed and connected; the spray nozzle extends into the pump body, the air closer is arranged above the pump body, one side of the pump body is sequentially connected with the spray nozzle, the hollow pipe and the air inlet pipe, the other side of the pump body is communicated with a cone pipe, the top of the pump body is communicated with the air closer, and the bottom of the pump body is communicated with an airflow source. The powdery material spraying pump has the advantages that the structure is simple, the operation is reliable, the full sealing is realized, no pollution is caused, the system manufacturing cost is low, the operation cost is low, and the automation degree is high.

Disclosed is a large-diameter shield tunnel concrete segment connecting construction. According to the large-diameter shield tunnel concrete segment connecting construction, weakening of the connecting construction to a concrete segment structure is reduced effectively, durability is reliable, fabricating is convenient, and the safety of hoisting operation is increased. The connecting construction comprises a first concrete segment and a second concrete segment which are located on the two sides of a joint. The first concrete segment is provided with a first hand hole, a first straight hole and a second straight hole. The outer end of the first straight hole communicates with the first hand hole. The axes of the first straight hole and the second straight hole are staggered. The outer end of the second straight hole communicates with the joint side end wall of the first concrete segment. The second concrete segment is provided with a second hand hole and an arc-shaped hole. One end of the arc-shaped hole communicates with the second hand hole, and the other end of the arc-shaped hole communicates with the joint side end wall of the second concrete segment. Ports of the second straight hole and the arc-shaped hole which are on the two sides of the joint correspond to each other. A first connecting rod provided with a straight section and an arc-shaped section penetrates into the second straight hole and the arc-shaped hole. A second connecting rod penetrates into the first straight hole from the first hand hole, and the rear portion of the second connecting rod penetrates through a connecting hole in the first connecting rod and is connected with the first connecting rod. A thread section is arranged on the front portion of the first connecting rod. A nut and retaining gasket assembly is mounted on the thread section in the second hand hole.

The invention relates to an elliptical hole machining device. A workpiece clamping device, a spindle box and a power head are arranged on a seat frame; the spindle box is arranged above a longitudinal feeding device; a hollow worm wheel spindle, a circumferential feeding worm wheel and a circumferential feeding worm spindle are arranged inside the box; a first eccentric axial through hole is formed on the hollow worm wheel spindle; a hollow shaft is arranged in the first eccentric axial through hole; the two ends of the hollow shaft are fixedly connected with pinions respectively; the pinions are meshed with internal gears which are fixedly connected at the two ends of the box; the gear ratio and the pitch diameter ratio of the internal gears and the pinions are both 2:1; second eccentric axial through holes are formed on the two pinions; a cutter spindle is arranged in the second eccentric axial through holes; one end of the cutter spindle is provided with a cutter; and the other end of the cutter spindle is connected with the power head through a telescopic universal coupling. The elliptical hole in the invention has a smooth formed surface, accurate dimension and high quality, and the elliptical hole machining device can meet batch machining of different elliptical holes with low machining cost.

A MEM switch is described having a free moving element within in micro-cavity, and guided by at least one inductive element. The switch consists of an upper inductive coil; an optional lower inductive coil, each having a metallic core preferably made of permalloy; a micro-cavity; and a free-moving switching element preferably also made of magnetic material. Switching is achieved by passing a current through the upper coil, inducing a magnetic field in the coil element. The magnetic field attracts the free-moving magnetic element upwards, shorting two open wires and thus, closing the switch. When the current flow stops or is reversed, the free-moving magnetic element drops back by gravity to the bottom of the micro-cavity and the wires open. When the chip is not mounted with the correct orientation, gravity cannot be used. In such an instance, a lower coil becomes necessary to pull the free-moving switching element back and holding it at its original position.

A method of providing a mark to a case of a cartridge of ammunition. The mark includes at least one sub-mark and is suitable for identification and / or for tracking of the cartridge. At least one indenter selectively radially indents a circumferential surface of a bottom of the case, thereby forming the at least one sub-mark.

The invention discloses a seeding device of a tobacco floating seedling raising plate. The seeding device comprises a conveying mechanism of the seedling raising plate, and a first substrate discharging hopper, a first substrate scraping mechanism, a first indenting mechanism, a second substrate discharging hopper, a second substrate scraping mechanism and an indenting and seeding integrated mechanism which are sequentially distributed along the conveying mechanism; the first indenting mechanism adopts a disc type structure; the indenting and seeding integrated mechanism is used for screeningseeds and then conveying the seeds into a material dividing plate, and the seeds are discharged one by one through three layers of staggered plates of the material dividing plate; then secondary indenting and seeding are completed at the same time through a combined conical indenting seeding hopper and a round-head indenting bar. Two times of substrate filling and indenting fully guarantee formingof seed pits; the indenting and seeding integrated mechanism guarantees that the seeding positions are proper, the device is reliable and lasting in work, it is guaranteed that the seeding success rate can reach 195 / 200, thinning is not needed, the seeding quality is improved, and the seedling quality of tobacco seedlings is ensured.

The invention relates to a bottom guard plate structure of a front bumper. The structure comprises a bottom protection plate body, the bottom protection plate body is installed between a front end frame and the front bumper, the front end of the bottom protection plate body is in lap joint with the front bumper, the rear end of the bottom protection plate body is fixedly connected with a lower cross beam of the front end frame, and a gap between the front bumper and the front end frame is sealed to achieve the effect of improving the whole vehicle wind resistance and the cabin heat dissipationperformance; and a shank supporting cross beam and transverse and vertical grid ribs are arranged on the bottom protection plate body, the transverse and vertical grid ribs are arranged in the lap joint area of the bottom protection plate body and the front bumper, and the shank supporting cross beam is arranged at the rear portions of the transverse and vertical grid ribs. When a pedestrian collides, the transverse and vertical grid ribs play a role in preliminary buffering and energy absorption, and the shank supporting cross beam behind the transverse and vertical grid ribs plays a role inmain energy absorption and supporting. In pedestrian protection leg type collision, the integrated shank supporting cross beam absorbs collision energy, so that light weight is achieved, and impact energy on the lower portion of the shank of a pedestrian can be effectively absorbed.

The invention discloses an onboard mobile phone wired / wireless charger comprising a shunt, a transmitter, a receiver and a mobile phone. The shunt is composed of a DC-DC conversion circuit, a Bluetooth module circuit, an electronic switch circuit and a charging mode automatic switching circuit. The transmitter is composed of a DC filter circuit, a transmission control circuit and a transmitting coil assembly. The receiver is composed of a receiving coil assembly, a receiving control circuit and a filtering output circuit. The onboard mobile phone wired / wireless charger is novel in working mode, relatively simple, scientific and reasonable in structure, good in operation universality and convenient to use, and can charge the mobile phone by scanning a code with an APP and the WeChat.

In a hunting and sporting firearm including a rolling block having a cavity for accommodating at least one action, the latter comprising a hammer for actuating a firing pin, a propulsion element for propelling the hammer and a trigger, said propulsion element is subjected to the action of a shock absorber consisting of its own drive means constituted by a spiral spring.

The invention relates to a steering column, which comprises an inner shaft, an outer shaft, columns of spherical objects, rigid rolling rail parts and elastic elements, wherein an axial groove of one of the inner and outer shafts is provided with two sunken support surfaces; each rigid rolling rail part comprises raised pivoting parts with raised pivoting surfaces and supporting parts with supporting surfaces, which are positioned on each side of a middle plane; the raised pivoting surfaces contact the sunken support surfaces; the supporting surfaces are pressed against and support the spherical objects; the elastic elements are positioned in the axial groove of one of the inner and outer shafts, and are pressed against the spherical objects to push and press the two rolling rail parts, so that torque transmission is avoided in a stationary state but is performed in a running state; each spherical object simultaneously contacts the two rolling rail parts and the axial groove of one of the inner and outer shafts; the radius of each raised pivoting surface of the two rolling rail parts is greater than that of the corresponding sunken support surface contacting the raised pivoting surface, so that two contact areas of pivoting axes parallel to a common axis can be defined and determined.

The invention discloses a method for reinforcing a damaged reinforced concrete column by adopting a prefabricated component with sleeves. A prefabricated reinforced concrete component (1), the sleeves(2), embedded steel bars (3) with anchor heads and post-cast strips (4) are mainly included. The prefabricated reinforced concrete component is composed of pre-buried longitudinal bars, pre-buried stirrups, constructed pulling bars and concrete. The method comprises the steps that the reinforce concrete with the damaged plastic hinge at the bottom end of the concrete column is dismantled, the prefabricated reinforced concrete component replaces the dismantled concrete, the joint is integrally connected with the original column through the post-cast strips, and finally the column with the improved performance after reinforcing is formed. According to the method, the prefabricated component is adopted for assembling and reinforcing the damaged reinforced concrete column on site, the damagedpart at the column end is quickly dismantled and reinforced, all the prefabricated components can achieve industrialized production, on-site assembling and connection reduces the workload of wet construction on site, the reinforcing efficiency is effectively improved, the quality of reinforcing construction can be easily ensured, and the new concept that an assembling method is adopted for reinforcing the damaged structure is shown.

The invention relates to an elastic rubber type check valve for a multi-dust environment, which comprises a valve body, a valve core and an elastic rubber tube, wherein a cavity is arranged inside the valve body, one end of the valve body is provided with a mounting hole which is communicated with the cavity, and the other end of the valve body is provided with an output port which is communicated with the cavity; the front end part of the valve core is protruded from the mounting hole into the cavity of the valve body, the mounting hole of the valve body is blocked, and the valve core is provided with an air current channel; an inlet of the air current channel is located at the tail of the valve core, and an outlet of the air current channel is located at the front end part; and the elastic rubber tube is sleeved at the front end part of the valve core so as to block the outlet of the air current channel. The elastic rubber type check valve for the multi-dust environment is reliable in work, better in tightness, lower in cost, and liable to maintain.

The invention discloses a dynamic flower-shaped firework setting-off appliance. The dynamic flower-shaped firework setting-off appliance comprises a plurality of petal body parts for mounting fireworks and also comprises a screw part connected with a rotation driving mechanism; a front substrate and a rear substrate are axially arranged along the screw part; a root part of each petal body part isarticulated on the front substrate; a middle part of each pedal body part is articulated with one end of a connection rod part, and the other end of the connection rod part is articulated on the rearsubstrate; the screw part is used for driving the substrates to do forward-backward linear motion along the axial direction of the screw part so as to shorten an axial gap between the front substrateand the rear substrate, so that a firework shape with flowers which gradually bloom can be formed. According to the dynamic flower-shaped firework setting-off appliance, a screw driving manner is usedfor achieving a process of dynamically opening and closing the flower shape of the fireworks; the appliance is reliable and lasting in operation and convenient to mount and use, and can be used repeatedly; the dynamic flower blooming process speed can be controlled to be perfectly matched with setting-off rhythm, background music and firework body effect; the smoke is reduced; the setting-off safety is improved.

The invention relates to the technical fields of harvesting and picking devices for cotton crop fruits, in particular to a backpack type electric airflow picking machine for cotton fruits. The backpack type electric airflow picking machine comprises a direct current motor structure, a rectifying fan structure, cotton pulling wheels, a structure of a driving wheel capable of driving a chain belt type filter screen to rotate, a structure of the chain belt type filter screen and an adjusting wheel rotating along with the driving wheel. The backpack type electric airflow picking machine is characterized by comprising an entire machine casing, and a direct current motor, a rectifying fan, a chain belt type filter screen device, upper and lower cotton pulling wheels, an inverted U-shaped wind shield and an elastic wind shield which are arranged in the entire machine casing as well as an aspirated-air type cotton picking manipulator connected onto an air cotton interface on the casing. The backpack type electric airflow picking machine disclosed by the invention has the advantages of reliability, portability, simpleness and convenience for repairing, maintaining and charging, small size, light weight, lightness and flexibility for operation, reliability and durability for use, continuousness in picking, high quality of picked cotton and high grade of the obtained cotton.

The invention discloses a main brush driving device for a pure electric sweeping vehicle and belongs to the field of the pure electric sweeping vehicle. The main brush driving device comprises a main brush, a main brush motor, a main brush lifting regulating pull rod and a main brush lifting bracket, wherein one end of the main brush lifting bracket is connected with the main brush motor while the other end is connected with a belt pulley; the main brush motor is used for driving the belt pulley to rotate through a belt; the belt pulley is fixed on a side wall of the main brush through a main brush end cover and used for driving the main brush to rotate; the main brush lifting regulating pull rod is vertically arranged relative to the main brush lifting bracket; one end of the main brush lifting regulating pull rod is hinged on a sweeping vehicle body while the other end is hinged on the main brush lifting bracket. The main brush driving device for the pure electric sweeping vehicle disclosed by the invention has the characteristics of high transmission efficiency, simple structure, performance stability, energy-saving effect, environmental protection and the like, and has reliable stability and durability for the complex operation environment of the sweeping vehicle.

The present invention provides an alumina type high-temperature resistant corrosion resisting high strength alloy steel and a preparation method thereof. The alloy steel comprises the following elements of 0.03-0.08% of C, 18-24% of Cr, 8-16% of Ni, 0.5-1% of Mn, 1-2% of Mo, 1-5% of W, 0.05-0.5% of Co, 3-8% of Al, 0.1-2% of Nd, 0-0.007% of S, 0-0.02% of P and the balance of Fe. The alloy elements are added into an arc furnace for melting and are insulated for 10 min at the temperature of 1680 DEG C, then are refined outside the furnace through a ladle finery and a vacuum argon and oxygen decarburization finery to get the steel. The method uses Cr, Mo and Co to improve high-temperature resistance, uses Ni to improve plasticity, W to increase wear resistance, and Ne to refine the crystal grains, and uses effect of a third element Cr; by adding a little Al, Al2O3 membrane is formed on the alloy surface at high temperature in oxygen-containing environment, and therefore the performances of high temperature resistance and high pressure water vapor corrosion resistance of the alloy are improved.

A system for recover brake energy of electric vehicle includes the permanent magnet synchronous motor of the original vehicle, three-phase alternating current switch, three-phase full-bridge rectifierand high-voltage battery pack, Brake energy recovery switch, energy storage buffer capacitor, DC buck charger and low voltage battery, A permanent magnet synchronous motor is connected with a three-phase full-bridge rectifier through a three-phase alternating current switch, The output of the three-phase full-bridge rectifier is connected to an energy storage buffer capacitor. The output of the energy storage buffer capacitor is provided with two channels. A low-voltage battery is connected through a DC buck charger, A high-voltage battery pack is connected with the other way through a high-voltage charging isolation diode. the output end of the low-voltage battery is connected to the control end of the three-phase alternating current switch through the brake energy recovery switch, A low-voltage battery is use for supplying pow to that low-voltage electric load of the original vehicle. From the practical application of the electric vehicle, the invention can charge the high-voltage battery pack under the high voltage, and when the low-voltage battery pack is lower than the high-voltage battery pack, the low-voltage battery pack on the vehicle is char, and the energy generated bybraking can be recovered.