32results about How to "Protection is not easy" patented technology

The invention discloses a lightweight building gypsum building block and a production method thereof. The lightweight building gypsum building block is molded by mixing the following raw materials in parts by weight: 75-85 parts of phosphogypsum, 10-15 parts of fly ash, 32-45 parts of water, 0.5-1.0 parts of cellulose, and 8-10 parts of a comprehensive foaming delayed coagulant. Compared with the prior art, the gypsum solidification time is 8-12 min, the production technology requirement of the gypsum building block can be satisfied, and the smooth operation of the production technology is guaranteed. The aperture of a foaming plasterboard is 0.1-0.18 cm, the pore distribution is uniform, the enough intensity and breaking-resistant strength of the plasterboard can be guaranteed, and the surface is flat and smooth. Through multiple tests, the compressive strength of the product is 3.9-4.1 MPa, the flexural intensity is 2.0-2.1 MPa, the softening coefficient is 0.68, the unit solid weight is decreased by 20-30%, the heat conduction coefficient is between 0.086W( / m.k) and 0.13W( / m.k), sound insulation and heat insulation performances are obviously increased, through detection, the compressive strength is increased by 18.3%, and the flexural intensity is increased by 51.2%.

The invention discloses a protective device for a solar water heater and a use method of the protective device for the solar water heater and relates to the technical field of solar water heaters. Theprotective device comprises a protective mechanism, a remote controller, a cleaning mechanism, a group of first supporting plates and a second supporting plate. The protective mechanism comprises a first fixing plate, a first motor and a second protective plate. One surface of the first fixing plate is fixedly connected with one surface of a second supporting plate. An electric pushing rod is fixed to one surface of the first fixing plate. According to the protective device for the solar water heater, a PLC is controlled through the remote controller, the PLC is made to control the electric push rod to drive a first protective plate to move to above a plurality of vacuum pipe bodies to protect the vacuum pipe bodies, the PLC controls the first motor to drive the second protective plate toslide upward through a first lead screw, and therefore comprehensive protection of the vacuum pipe bodies is achieved; the vacuum pipe bodies are not prone to being damaged by collision with foreignmatter, financial loss of a user is avoided, and therefore the solar water heater can provide better service for the user.

The invention discloses a taking and putting facilitated electronic product storage structure. The taking and putting facilitated electronic product storage structure comprises rear rods, front rods,a bottom plate and placement plates. One side of the top of the bottom plate is evenly and fixedly connected with the multiple rear rods which are longitudinally arranged. The other side of the top ofthe bottom plate is evenly and fixedly connected with the multiple front rods which are longitudinally arranged. The front rods and the rear rods on the two sides are located on the same straight line in the width direction of the bottom plate. One ends of supporting rods are rotationally connected with the rear rods through rotating shafts, and one placement plate is installed between every twosupporting rods on the same horizontal plane. The middle ends in the supporting rods are provided with sliding grooves in the length directions, the two sides of each placement plate are evenly provided with a plurality of second rolling wheels, and the multiple second rolling wheels are clamped into the sliding grooves. The taking and putting facilitated electronic product storage structure is convenient and rapid to use, electronic products are conveniently taken and put, requirements of different works can be met, the automation degree is relatively high, and the electronic products are notprone to being damaged when stored.

The invention discloses a high-power heavy low seam mining machine, which comprises a machine body, a left traction part, a right traction part, a left cutting part, a right cutting part, a swinging arm elevating hydraulic system and an electric control system, wherein the electric control system comprises an electric control box and a controller; the left cutting part comprises a left swinging arm, a left roller and left cutting motors; the right cutting part comprises a right swinging arm, a right roller and right cutting motors; the left traction part comprises a left traction motor and a left traction transmission mechanism; the right traction part comprises a right traction motor and a right traction transmission mechanism; the left cutting motors, the right cutting motors, the left traction motor, the right traction motor and swinging arm elevating hydraulic system are controlled by the controller; and two left cutting motors and two right cutting motors are provided. The high-power heavy low seam mining machine has the advantages of reasonable design, high overall power, high mining efficiency, stable and reliable working performance and good using effect, and can be used for solving the problems of low power, low mining efficiency, poor using effect and the like existed in the conventional coal mining machine in the mining process of a low coal seam.

A high-temperature oxidation-resistant non-coated hot stamping steel, the chemical composition of which is C0.18-0.28% by weight, Si0.05-0.50%, Mn0.20-0.90%, P≤0.010%, S≤0.005 %, Cr0.20~1.50%, Mo0.01~0.30%, B0.0006~0.0030%, Nb+V+Ti 0.02~0.25%, Al0.010~0.100%, the balance is Fe and other unavoidable impurities The element; its preparation method can only be prepared through the hot stamping forming process after the steelmaking, billet casting, hot rolling, pickling and cold rolling processes; the metallographic structure is full martensite. The steel for hot stamping forming of the present invention has the characteristics of fine grain, anti-oxidation, low critical cooling rate, etc., can be used normally under the condition of no protective atmosphere, and its performance meets the requirements of the oxidation resistance of the hot stamping forming plate and the strength of the hot stamping forming member .

The invention discloses a three-dimensional mechanical parking garage capable of achieving rapid vehicle garaging and separated transmission. The device comprises a base, supporting frames and bearingmechanisms, wherein vertically-arranged supporting frames are welded to the two ends of the top of the base; a plurality of bearing mechanisms are rotationally mounted between the two supporting frames; gears are mounted in the middles of the upper and lower ends of the opposite surfaces of the two supporting frames; a chain is mounted between the upper gear and the lower gear; a first clamping groove plate and a second clamping groove plate are installed on the opposite sides of the two supporting frames, the first clamping groove plate is installed on the upper portion of the second clamping groove plate, the first clamping groove plate and the second clamping groove plate are arranged in an oval shape, a motor is installed in the middle of the supporting frame at one end, and the motoris connected with a rotating shaft at the bottom through a belt. The three-dimensional parking garage is convenient and fast to park, can adapt to different vehicles, is stable in vehicle parking andmoving, and is not prone to shaking. The protection performance is good during parking, comprehensive protection can be achieved, and vehicles are not prone to damage.

The invention discloses a dyeing and finishing method for improving the color fastness of fabrics. The specific dyeing and finishing process is as follows: add cotton fibers to a sodium hydroxide solution with a mass concentration of 5% for treatment, then dry them, then add direct dyes into water to stir and dissolve, Then add epichlorohydrin, cotton fiber and sodium hydroxide, and react to obtain dyed fiber; weave the dyed fiber to obtain yarn, and add the obtained yarn to the color-fixing finishing agent and impregnate it to weave to obtain high color fastness fabric. In the present invention, a large number of hydroxyl groups on the surface of cotton fibers are exposed after pretreatment of the fibers, and then they can be combined with dyes through chemical bonds to improve the bonding strength between dyes and fibers. Composite a layer of protective film, the protective film and the color material are connected by chemical bonds, the compound is firm, and it is not easy to peel off under strong external force, which further realizes the protection of the color material and improves the color fixation of the color material.

The invention relates to a wire rod coating material, and a preparation method and application thereof. The material comprises the following components in percentage by mass: 35%-55% of a styrene-butadiene segmented copolymer, 15%-35% of a rubber plasticizer, 4%-13% of polypropylene, 3%-8% of a compatilizer, 5%-15% of EPDM rubber, 1%-3% of polydimethylsiloxane and 0.1%-2% of an auxiliary agent. The wire rod coating material is low in raw material price and simple in manufacturing process, and has the characteristics of softness, high elasticity and fine and smooth hand feeling; and meanwhile,the wire rod coating material can be directly melted and recycled without extra processing treatment, so recycling cost is low, and environmental protection is facilitated. The wire rod coating material is free of peculiar smell, safe and reliable to use and not prone to aging, yellowing and embrittlement, and therefore, the service life of a product is prolonged. The wire rod coating material isnot only suitable for earphone wires or electric wires, but also suitable for coating materials of other products; and by adopting the wire rod coating material, not only can higher economic benefitsbe obtained, but also better environmental benefits can be obtained.

The invention relates to the technical field of permanent magnet materials, in particular to a graphene rare earth permanent magnet material and a preparation method thereof. The graphene rare earth permanent magnet material comprises the following raw materials in percentage by mass: 20.6%-23.4% of neodymium, 6.6%-7.5% of praseodymium, 0.95%-1.20% of boron, 0.4%-0.6% of cobalt, 0.11%-0.15% of copper, 2.0%-2.4% of lanthanum, 1.7%-2.1% of cerium, 1%-5% of graphene and the balance of iron. The graphene rare earth permanent magnet material has good temperature resistance, conductivity and magnetic performance and does not contain terbium and dysprosium heavy rare earth elements, the cost of a rare earth permanent magnet is greatly reduced while the graphene rare earth permanent magnet material with excellent performance is obtained, effective utilization of rare earth resources is facilitated, and the product yield is increased; and the preparation method is simple in process, convenient to control, low in production cost and high in production efficiency, and the prepared product is stable in performance.

The utility model relates to a device for preventing the breakage of the suspended area during the liquid-filled deep drawing of a conical part, which relates to a conical part forming device. It solves the disadvantage of deformation existing in the deep-drawing plate formed by the existing forming process, and also has the problem of relatively large impact in the process of applying pressure to the plate. The rigid binder ring (3) of the device of the present invention is arranged above the die (2), has a groove in the rigid binder ring (3), and the flexible support ring (5) is located in the groove, and the die (2) ) is arranged above the fluid medium cavity (1), and the liquid injection hole (9) is connected with the hydraulic system. The present invention also reduces the deep-drawing deformation of the plate, and can buffer the pressure during the process of applying pressure to the plate, reducing the impact on the plate. The large conical part avoids the rupture of the suspended area of ​​the conical part during liquid-filled deep drawing, which saves procedures, reduces costs and improves efficiency.

The invention discloses a maintenance device for an electric emergency power supply system, which comprises a device body, two detection pens are connected to the bottom end of the device body through wires, a groove is opened on one side of the device body, and the groove A first rotating rod is installed in the inner rotation, one end of the first rotating rod is fixedly connected with a winding rod, the side of the device body close to the first rotating rod is fixedly connected with a fixed block, and the bottom end of the fixed block is provided with a Two slots, one end of the detection pen extends into the slot, the other end of the detection pen is fixedly connected with a clamping rod, the clamping rod is an L-shaped structure, and the device body is far away from one side of the first rotating rod An arc-shaped groove is opened on the side, and a mounting groove is opened in the device body, and a rotating motor is installed in the mounting groove, and the output shaft of the rotating motor extends to the outside of the device body. The invention has the advantages of reasonable structure, convenient use, no winding of wires, and good protection of the detection pen and the display screen.

The invention discloses a single-span beam structure demonstration experiment device with a liftable support. The device comprises two box bodies, wherein the two box bodies abut against each other and are rotatingly connected, the inner bottoms of the two box bodies are rotatingly connected with threaded cylinders, and adjusting mechanisms are disposed between the two threaded cylinders and the box bodies at the same side; threaded rods are in threaded connection with the interiors of the two threaded cylinders correspondingly, supporting plates are fixedly connected with the upper ends of the two threaded rods correspondingly, limiting pieces are fixedly connected between the two supporting plates and the opposite inner bottom of the box body, and T-shaped guide rails are fixedly connected with the upper ends of the two supporting plates correspondingly. The device is reasonable in structure, by arranging the second bevel gear with incomplete teeth, the threaded rod can accurately ascend by 0.5 cm, operation is convenient, simple and more accurate, meanwhile, by arranging the two box bodies, the threaded cylinder and the like can be stored and protected, dust is not prone to falling on the threaded cylinder and the like, reuse is facilitated, meanwhile, the threaded cylinder and the like are not prone to collision, and protection of the threaded cylinder and the like is achieved.

The invention discloses a taking and putting facilitated electronic product storage structure. The taking and putting facilitated electronic product storage structure comprises rear rods, front rods,a bottom plate and placement plates. One side of the top of the bottom plate is evenly and fixedly connected with the multiple rear rods which are longitudinally arranged. The other side of the top ofthe bottom plate is evenly and fixedly connected with the multiple front rods which are longitudinally arranged. The front rods and the rear rods on the two sides are located on the same straight line in the width direction of the bottom plate. One ends of supporting rods are rotationally connected with the rear rods through rotating shafts, and one placement plate is installed between every twosupporting rods on the same horizontal plane. The middle ends in the supporting rods are provided with sliding grooves in the length directions, the two sides of each placement plate are evenly provided with a plurality of second rolling wheels, and the multiple second rolling wheels are clamped into the sliding grooves. The taking and putting facilitated electronic product storage structure is convenient and rapid to use, electronic products are conveniently taken and put, requirements of different works can be met, the automation degree is relatively high, and the electronic products are notprone to being damaged when stored.

The invention discloses an electric power emergency power source system maintenance device. The device comprises a device body, wherein a bottom end of the device body is connected with two detectionpens through leads, one side of the device body is provided with a groove, the groove is internally and rotatably equipped with a rotation rod, one end of the rotation rod is fixedly connected with awinding rod, one side of the device body close to the rotation rod is fixedly connected with a fixing block, a bottom end of the fixing block is provided with two slots, one ends of the detection pensextend into the slots, the other ends of the detection pens are fixedly connected with clamping rods, the clamping rods are L-shaped structures, one side of the device body away from the rotation rodis provided with an arc-shaped groove, the device body is internally provided with a mounting groove, the mounting groove is internally equipped with a rotation motor, and an output shaft of the rotation motor extends outside the device body. The device is advantaged in that the structure is reasonable, the device is convenient to use, the leads are not easy to wind, and the detection pens and adisplay screen can be excellently protected.

The invention discloses an anti-drop pencil bag which is characterized by comprising a pencil bag body, wherein an inflated interlayer is arranged at the bottom of the pencil bag body, an air blowing opening is formed in one side of the inflated interlayer, a plurality of elastic pencil holders and corresponding pencil tip protecting pipes are arranged in the pencil bag body, and a tying rope and a carriage bag with a zipper are arranged on one side of the pencil bag body. An eraser, a pencil sharpener and the like can be placed in the carriage bag of the anti-drop pencil bag disclosed by the invention, pencils are placed in the elastic pencil holders, the pencil tip protecting pipes can effectively prevent pencil tips from being broken; the pencil bag is rolled and then fixed and tied by using the tying rope, and the inflated interlayer can effectively protect the bag body and the pencils. The anti-drop pencil bag disclosed by the invention has the advantages of being convenient to carry, multiple in functions, and the like; a ruler and the pencils and the like have low probability of breakage.

The invention provides a rubber tapping method, which is simple in operation, can reduce the training cost of a rubber tapping worker and enable rubber tapping ports to be level and uniform, and can well protect a rubber tree. The method comprises the following steps of: providing a rotating cutter set, wherein the cutter set comprises a plurality of blades which are arranged in central symmetry,each blade comprises a side edge and a bottom edge, the side edge and the bottom edge are arranged at an included angle of 80 to 100 degrees; providing an energy storage device, wherein the energy storage device stores the energy required for the rubber tapping operation in advance; providing a power device, wherein the power device converts the energy stored in the energy storage device into thepower required for driving the rotating cutter set to rotate at high speed; providing a transmission device, wherein the transmission device is used for effectively and stably transmitting the power output by the power device to the rotating cutter set so as to achieve the rubber tapping operation on the rubber tapping surface of the rubber tree by driving the rotating cutter set to rotate at highspeed; providing a cutter set protection seat, wherein a cutting datum surface is arranged on the protection seat, when the rubber tapping operation is carried out, cutting limiting and protecting ofthe rubber cutting surface are achieved by clamping the cutting datum surface between the rotating cutter set and the rubber tapping surface.