34results about How to "Play a role of fixed protection" patented technology

The invention discloses a boron powder combustion heat value testing device. The device comprises a bomb body, a bomb head, a crucible, a crucible cover and conducting posts, wherein the crucible is fixed on a crucible frame in the bomb body; the bomb head is arranged on the bomb body; a vent pipe is arranged at the middle part of the bomb head, and is communicated with the interior of the bomb body; a thimble type gas valve is arranged on the vent pipe; the two conducting posts are ignition electrodes; small holes are formed in the conducting posts; conducting ferrules are arranged on the upper parts of the conducting posts; the two ends of an ignition fuse are inserted into the small holes in the conducting posts respectively, and are fixedly connected with the conducting posts through the conducting ferrules; the crucible cover is positioned on the crucible; two step holes embedded with ceramic plates are formed in the crucible cover, and are used for allowing the ignition fuse to be inserted; two rows of guide holes are circumferentially formed in the middle part of the wall of the crucible, so that burning on an oxygen bomb part by boron powder with a high combustion heat value can be prevented; the volume of the crucible is increased, so that sufficient oxygen can be ensured to participate in combustion; the step holes are formed in the crucible cover to balance the internal and external pressure of the crucible. The testing device is particularly applied to the testing of a combustion heat value of a boron fuel, and is also applied to the testing of combustion heating values of a solid propellant, coal and a petroleum substance.

The invention discloses a high-voltage cable oscillatory wave partial discharge test system which comprises a high-voltage DC power supply, a high-voltage switch, a high-voltage reactor, a capacitivevoltage divider, a data acquisition analysis unit and an partial discharge coupling unit. The bottom of the high-voltage reactor is provided with a base. The top of the high-voltage reactor is provided with a clamping seat. The base includes a substrate base fixed to the high-voltage reactor. Two symmetrically arranged annular fixing seats are arranged below the substrate base. Both ends of each annular fixing seat are inclined structures. A stopping plate is arranged between the annular fixing seats. Positioning holes are arranged on both end faces of the stopping plate. A telescopic rod is arranged between the stopping plate and the substrate base. A spring sleeves the telescopic rod. The high-voltage cable oscillatory wave partial discharge test system is able to reduce potential safetyhazards and improve installation efficiency.

The invention discloses engineering vehicle lifting equipment. The engineering vehicle lifting equipment comprises an engineering vehicle, transmission shafts, a lifting device and lifting cylinders.The engineering vehicle comprises a compartment and a cab. The lifting cylinders comprises piston rods and four cylinder barrels, and the four cylinder barrels are separately arranged on two sides ofthe front end and the rear end of the compartment and are fixedly connected with the compartment. The piston rods are disposed in cushion blocks and are slidably connected to the cylinder barrels, andsupporting blocks are arranged at the upper ends of the two piston rods disposed on the rear side of the compartment. The transmission shafts include conveying shafts and a fixing shaft, and the supporting blocks and conveying motors which are disposed on the same side are connected through the conveying shafts. The lifting device comprises an adjusting motor, a rope box, a rope and a hook, and sliding holes are formed in the rope box. The sliding holes are matched with the fixing shaft, and the adjusting motor is disposed at the upper end of the rope box. One end of the rope is disposed in the rope box, and the other end of the rope is disposed outside the lower end of the rope box. The cab is internally provided with a control device which is electrically connected with the adjusting motor, the lifting cylinders and the conveying motors.

The invention relates to the technical field of mobile air conditioners, in particular to a stable type mobile air conditioner convenient to assemble. The stable type mobile air conditioner convenientto assemble comprises a machine case, a base arranged at the bottom of the machine case and a top cover arranged on the top of the machine case. The base is provided with a lower air duct assembly and an upper air duct assembly mounted on the lower air duct assembly. The top cover is provided with an air outlet communicating with the upper air duct assembly. An air guide plate is movably mountedat the air outlet. The two sides of the air guide plate are provided with movable shafts connected with the top cover. Driving disks are arranged close to the movable shafts. The driving disks and theair guide plates are integrally formed and provided with rotation inner teeth. The top cover is provided with a driving motor in driving connection with the rotation inner teeth. The stable type mobile air conditioner convenient to assemble is simple in overall structure, convenient to assemble, high in assembly efficiency and low in using power. The refrigerating capacity is improved. The poweris effectively reduced on the condition of reducing the load of the mobile air conditioner. The energy efficiency of the mobile air conditioner is improved greatly.

The invention relates to a roller pin bush. The roller pin bush comprises multiple first roller pins, multiple second roller pins, a first retainer and a second retainer. The first retainer and the second retainer are each in a barrel shape. The surface, at the inner side, of the first retainer and the surface, at the inner side, of the second retainer are each provided with a groove in a circle. The multiple first roller pins or the multiple second roller pins are each movably mounted in the corresponding groove. The diameter of each roller pin is greater than the depth of the corresponding groove. By means of the roller pin bush, friction force generated in the relative movement process can be remarkably reduced; mechanical efficiency, performance and reliability can be improved; and energy consumption can be reduced. An auxiliary assembling structure of the roller pin bush can assist in assembly of the roller pin bush and also can achieve the fixation and protection effect in the transportation process.

The invention relates to a roller pin bush and an assembly-assisting structure. The roller pin bush comprises a plurality of roller pins and two end retaining rings, wherein the plurality of roller pins are arranged between the two end retaining rings; each roller pin comprises a cylindrical roller pin body and semi-spheres at two ends of the cylindrical roller pin body; the surface, facing the of roller pins, of each end retaining ring is provided with a circle of groove; and the semi-spheres are arranged in the grooves. The roller pin bush provided by the invention can greatly reduce frictional force during relative movement, improves mechanical efficiency, performance and reliability and lowers energy consumption. The assembly-assisting structure for the roller pin bush can assist assembly of the roller pin bush and exerts fixing and protecting effect during transport of the roller pin bush.

The invention discloses a multi-thread threading sealing sheath which comprises a rubber sheath body. The periphery of the body is provided with a sealing connecting device which is connected with an electric casing. The sheath body is provided with at least two threading holes, and the threading holes are blind holes. The multi-thread threading sealing sheath can be easily arranged on a meter case through the sealing connecting device on the sheath main body, and the operation is simple. The multi-thread threading sealing sheath is made of rubber material, therefore, the sealing performance is good. Each threading hole corresponds to one electric wire, and is set into the blind hole, so that the blind hole can fix, protect and seal the electric wire when the electric wire penetrates through the bottom of the blind hole.

The invention discloses an injection molding manipulator, and relates to the technical field of injection molding manipulators. The injection molding manipulator comprises an injection molding manipulator body composed of a base, a mechanical arm and a grabbing mechanism, the top of the base is fixedly connected with the bottom of the mechanical arm, and the right side of the bottom of the mechanical arm is fixedly connected with the top of the grabbing mechanism; and the grabbing mechanism comprises an upper bearing block, the interior of the upper bearing block is slidably connected with the bottom of the mechanical arm through a hydraulic telescopic rod, the bottom of the upper bearing block is fixedly connected with a lower bearing block through a vibration block, and an air guide pipe is arranged in the lower bearing block. According to the injection molding manipulator, the problems that when certain small and high-precision injection molding parts are processed, a traditional clamping jaw manipulator is prone to damage the injection molding parts, clamping is inconvenient, the efficiency is low, meanwhile, in the clamping process, certain rim charges are prone to being attached to the inner walls of clamping jaws, and the injection molding parts are prone to being scrapped due to extrusion of the rim charges in the next clamping process are solved.

The invention discloses a test tube fixing frame of an electronic weighing instrument, and belongs to the technical field of fixing frames. The test tube fixing frame comprises a mounting plate, a first fixing plate integrally formed at the top of the mounting plate, and a lifting mechanism located at one side above the first fixing plate, first clamping springs are connected to two internal sidewalls of the mounting plate at equal intervals, first clamping plates are connected to ends, away from the inner wall of the mounting plate, of the first clamping springs, inserting grooves are formedin the first fixing plate at equal intervals, and a second fixing plate is connected to the upper portion of the lifting mechanism. The arrangement of the mounting plate makes the test tube frame convenient to disassemble and mount.

The invention provides a telescoping relay slide fixation protection device, which comprises an expansion plate. The expansion plate is a rectangular insulation plate attached to the bottom portion of a telescoping relay; the expansion plate is provided with a first slide groove and a second slide groove for expansion effect; one side of the expansion plate is provided with an anti-leakage protection board; the anti-leakage protection board is made of an insulation rigid material; one side of the anti-leakage protection board is provided with a fixation support plate; the middle two sides of the fixation support plate are provided with a first fixation hole and a second fixation hole for fixation effect; the two sides of the fixation support plate are provided with a first locking shoulder and a second locking shoulder for fixing positions respectively. The beneficial effects are that the telescoping relay slide fixation protection device is low in production cost, simple in mechanism and convenient to operate; with the device, a fixation protection effect can be realized when larger current passes, thereby preventing current breakdown cases, and protecting personal property safety; and the device is wide in application range.

The invention provides a double-pulse solid rocket engine wiring board combination device. The device comprises a wiring board, a binding post, a spring, a pin and a flat washer. The binding post passes through a through hole in the side wall of the wiring board and is fixed in a square hole of the wiring board together with the spring, a first pulse ignition device lug plate and a second pulse ignition device lug plate, and finally the small end of the binding post is fixed on the wiring board through the flat washer and the pin. The wiring board combination device is fixed on an engine compartment by screws through counter bores at two ends of the wiring board. The device has the advantages and beneficial effects that the structure is simple and the assembly is convenient; the first pulse ignition device lug plate and the second pulse ignition device lug plate are extruded through a pre-tightening force of the spring to be tightly attached together, ignition circuits are reliably connected, and electric appliance fault modes caused by connector connection are reduced; the wiring board assembly plays a role in fixing and protecting the cable; in addition, identifications among theignition circuits are clear, correctness of circuits is convenient to check, and reliability of work of the solid rocket engine ignition circuit is guaranteed.

The invention discloses a preparation process of a high-strength integrally-formed micro inductor, and relates to the technical field of microelectronics. When the high-strength integrally-formed micro-inductor is prepared, firstly, a coil is manufactured to obtain a hollow-core rectangular coil with protruding external pins, then primary protection is conducted, the external pins are made to protrude to form a single-layer planar micro-inductor, a semi-finished micro-inductor is manufactured through assembling, and 3, 4, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5 the modified organic silica gel forms porous protection columns at the two ends of an external pin through secondary protection, and the high-strength integrally-formed micro inductor is manufactured. The prepared aluminum nitride has good stress protection performance and oxidation corrosion resistance, and is easy to install and use.

The invention discloses a cloth batch ironing device for textile machinery. The cloth batch ironing device structurally comprises a cloth transportation automatic separation anti-folding device, a cloth batch feeding opening, a first conveying machine frame, a regulating push button, a control box, a transparent glass plate, a second transportation frame and a cloth ironing box, wherein the clothtransportation automatic separation anti-folding device is arranged at the upper end of the cloth ironing box and is connected with the cloth ironing box in an embedded installation mode; the cloth batch feeding opening is formed in the right end of the cloth ironing box and is of an integral structure; the first transportation machine frame is arranged at the right end of the cloth ironing box and is connected with the cloth ironing box in a welding mode. The cloth batch ironing device is provided with a structure for separating cloth in the process of feeding the cloth into the ironing device; the influence on the ironing work due to mutual overlapping of the cloth can be effectively prevented; meanwhile, a mechanism for automatically and emergently connecting with a standby power supplywhen external power supply equipment fails is installed, so that the defect of the ironing of non-ironed cloth is not successful after the power supply equipment is repaired is favorably avoided.

The invention discloses a lamp, which comprises a lamp holder, a lamp cover and a lamp body, wherein the lamp body comprises a lamp cup; two opposite ends of the lamp cup are connected with the lamp holder and the lamp cover respectively; a plurality of radiating fins are arranged on periphery of the lamp cup; a light source module is disposed at one end of the lamp cup, which is close to the lamp cover; the lamp cover covers the light source module; the lamp body further comprises a protective device which is arranged on the periphery of the lamp cup; the protective device encloses the radiating fins; a plurality of through holes are formed on the protective device; and the through holes are communicated with channels among the radiating fins. The protective device presents a corresponding appearance according to the shape of a radiating part, thus protecting the radiating part in a fixed manner and preventing the radiating fins from being scratched; and meanwhile, the whole beautiful figure of the lamp is improved.