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

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.

The invention discloses high-temperature oxidation-resistant steel for non-coating hot stamping. The high-temperature oxidation-resistant steel comprises the following chemical components in percentage by weight: 0.18-0.28% of C, 0.05-0.50% of Si, 0.20-0.90% of Mn, less than or equal to 0.010% of P, less than or equal to 0.005% of S, 0.20-1.50% of Cr, 0.01-0.30% of Mo, 0.0006-0.0030% of B, 0.02-0.25% of Nb+V+Ti, 0.010-0.100% of Al and the balance of iron and inevitable other impurity elements. The preparation method of the high-temperature oxidation-resistant steel comprises a hot stamping process after processes of steel making, blank casting, hot rolling, acid cleaning and cold rolling to ensure that the steel can be prepared, wherein a metallographic structure is a full martensite. The steel for hot stamping, disclosed by the invention, has the characteristics of fine grain, oxidation resistance, low critical cooling rate and the like and can be normally used under the condition without a protective atmosphere, and the performance of the steel meets requirements for oxidation resistance of a hot stamping plate and strength of a hot stamping component.

The invention discloses an advanced water prevention construction process for a post-cast strip of the side wall of a basement. The advanced water prevention construction process comprises the steps of detaching a formwork, cleaning the post-cast strip, prefabricating a reinforced concrete baffle, mounting the baffle, smearing the outer side of the baffle with lime, and conducting construction on a waterproof roll and a protection wall, wherein construction on the waterproof roll and the protection wall can be conducted seven days after the outer side of the baffle is smeared with the lime. The construction process is short in construction period, the later construction is not affected, the post-cast strip can be protected, and a retaining wall is high in strength, good in stability and can bear impact force generated during earthwork backfilling; construction difficulty is low; and the problems that an existing construction process is long in construction period, influence on the later construction is large, protection of the post-cast strip is not easy, and a retaining wall is low in strength, poor in stability and extremely prone to collapsing under earthwork impact in the earthwork backfilling process are solved.

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 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 a fabric. The method includes the following specific dyeing and finishing processes: adding cotton fibers into a sodium hydroxide solution with a mass concentration of 5% for treatment and then drying, then adding a direct dye into water for stirring and dissolving, adding epoxy chloropropane, cotton fibers and sodium hydroxide, and reacting to obtain dyed fibers; and weaving the dyed fibers to obtain yarns, and adding the obtained yarns into a fixing finishing agent for impregnation and then weaving to obtain fabrics with high color fastness. According to the method, a large number of hydroxyl groups on the surface of cotton fibers are exposed after the fibers are pretreated, and then the hydroxyl groups can be combined with dyes through chemical bond action, so that the bonding strength between the dyes and the fibers is improved; and meanwhile, a layer of protective film is compounded on the surface of yarns, namely the surface of coloring materials, and the protective film is connected with the coloring materials through chemical bond action, so that the protective film is firm in composite, is not easy to peel off under strong external force action, further realizes the protection of the coloring materials, and improves the solid color of the coloring materials.

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 gasifier device for efficient slag removal with separation and heat recovery. An outlet of a gasifier faces an inlet of a slag-gas separator and mutually communicates with the inlet of the slag-gas separator through a throat pipe; an outer wall of the slag-gas separator and the inner wall of a furnace body define an annular space; a gas outlet is designed on the furnace body above the annular space; the top end of the throat pipe is provided with a flume distribution device to enable water to be uniformly overflowed to the inner wall of the throat pipe to form a liquid film for protecting the inner wall; the flume distribution device of the throat pipe is provided with water nozzles for spraying water toward the interior of the throat pipe and spraying water intoan inner cavity of the throat pipe; and a circle of annular back blowing devices are installed at the lower part of the throat pipe to blow gas into the inner cavity of the throat pipe. The gasifier device has the advantages that residual water, which flows down along the wall of the throat pipe, at the lower ends of the water nozzles is blown away from the wall of the throat pipe by the annular back blowing devices when flowing through the annular back blowing devices, so that no water flows into the slag-gas separator. The technology saves investment, does not need a great quantity of waterto chill gas, is less in quantity of produced sewage, is environmentally friendly and can recover most of heat of the gas; and in addition, the gasifier and a heat exchange system are difficult in adhesion, and long-period stable running of the gasifier can be realized.

The invention discloses a door plate structure with a buffer structure and special for a lift car type elevator. The door plate structure comprises a door plate structure body, a groove is formed in one side of the door plate structure body, a buffer elastic pad is fixedly bonded at the bottom end of the interior of the groove through a glue solution, and a buffer plate is bonded on the surface ofthe buffer elastic pad through a glue solution. A connecting plate is integrally formed at the end of the buffer plate, sliding grooves are formed in the two sides of the outer surface of the door plate structure body, and the connecting plate is embedded into the sliding grooves. The buffer elastic pad is designed in the groove, the buffer plate is designed on the surface of the buffer elastic pad, and thus it is avoided that when the door plate structure is used, the outer surface is impacted, protection is inconvenient, and deformation and damage are liable to be caused. The buffer elasticpad can be driven to buffer the impact when the surface of the buffer plate is impacted, and meanwhile, first springs generate elasticity in the sliding grooves to buffer the end part of the buffer plate, so that an object rebounds conveniently, and protection is facilitated.

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 an HDMI high-definition data line which comprises HDMI high-definition data line connecting plugs, HDMI high-definition data line protective sleeves and HDMI high-definition data lines are fixedly installed on the opposite faces of the two sets of HDMI high-definition data line connecting plugs, and the HDMI high-definition data lines are fixedly installed on the inner sides of the HDMI high-definition data line protective sleeves. An installation groove is formed in the outer wall of each HDMI high-definition data line, a reinforcing strip is fixedly installed in eachinstallation groove, and an HDMI high-definition data line protective sleeve is fixedly installed on the opposite face of a HDMI high-definition data line connecting plug, so that the connecting positions of the HDMI high-definition data line connecting plugs and the HDMI high-definition data lines are protected conveniently, and the HDMI high-definition data lines are not prone to damage. According to the HDMI high-definition data lines, the installation grooves are formed in the outer walls of the HDMI high-definition data lines, so that the reinforcing strips can be conveniently limited andfixed in the installation grooves, and meanwhile, the HDMI high-definition data lines can be reinforced, so that the HDMI high-definition data lines are not easy to damage when in use.

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 an optical fiber transceiver cabinet suitable for multiple scenes, which comprises a cabinet, the cabinet is a cavity, a pair of clapboards is arranged in the cabinet, a fireproof layer, a non-Newtonian body layer and a protective layer are sequentially arranged on the side wall of the cabinet from inside to outside, and an induction layer is connected to the upper side wall of the cabinet; the optical fiber transceiver cabinet suitable for multiple scenes has a multi-layer protection structure and can automatically extinguish flames in a transceiver, so that the optical fiber transceiver is not prone to fire, and through the arrangement of the fireproof layer, the flames are not prone to being transmitted outwards to cause fire disasters; through the arrangement ofthe non-Newtonian body, the cabinet is enabled to have stronger damage resistance, also can block a fire, and is suitable for a plurality of scenes. Through the arrangement of the protective layer, the cabinet is easily protected from being damaged; through the arrangement of the gas excitation device, a fire source in the cabinet can be extinguished easily, and fire disasters are reduced; and through arrangement of a plurality of sensors, whether fire hazards exist in the cabinet or not can be easily monitored.

The invention discloses a damping mechanism of a coal mining machine. The coal mining machine 6 comprises a protective plate (6.1) at the top and a traveling base (6.3) at the bottom, a machine body (6.2) is mounted on the base (6.3), the protective plate (6.1) is supported by a supporting device (6.4) located on the base (6.3), the damping mechanism (11) is arranged at the bottom of the base (6.3), a supporting plate (11.9) is horizontally arranged in a casing (11.1) of the damping mechanism (11), two ends of the supporting plate (11.9) are glidingly arranged in the casing (11.1) through a sliding mechanism, the sliding mechanism comprises a sliding sleeve (11.4) arranged at one end of the supporting plate (11.9), a groove (11.5) is formed in the inner side wall of the casing (11.1), a slid rail (11.3) is vertically arranged in the groove (11.5), and the sliding sleeve (11.4) glidingly sleeves the slide rail (11.3). The damping mechanism has a good damping effect.

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 discloses a double-box heptachord. The double-box heptachord comprises a frame and a bottom plate connected with the bottom of the frame, wherein end plates are connected to the two endsof the frame; and string fixing plates are connected to the two ends of the top of the frame. An arc-shaped protective cover is connected to the upper portions of the exteriors of the end plates, andinserting rods are horizontally and movably connected to the opposite sides of the two ends of the bottom of the protective cover; and an arc-shaped anti-collision plate is connected to the exteriorof the protective cover, the space between the inner side of the anti-collision plate and the outer side of the protective cover is filled with a buffer cushion layer, and the top of the protective cover is higher than the tops of the string fixing plates. Switching of two states of a mounting plate can meet different working requirements, and the heptachord can be prevented from being damaged easily. If the upper portion and the end portion of the heptachord are in contact with the ground, the heptachord is protected by the protective cover and the end plates. After the end plates are in contact with the ground, the heptachord finally falls to the ground and can be protected by elastic columns or the protective cover, so that the protection is relatively comprehensive, and the damage riskof the heptachord can be reduced.

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 provides a swivel joint and an operation machine, and the swivel joint comprises a shaft sleeve, a main shaft and a wire storage box. Wherein the wire storage box is provided with a containing cavity, and a first wire outlet communicated with the containing cavity is formed in the wire storage box. When in use, the swivel joint is connected to a working device, a cable penetrates through the wire passing hole of the main shaft and the wire storage box, a section of loose cable is stored in the wire storage box, and when the main shaft rotates relative to the shaft sleeve, the loose cable in the junction box provides rotation allowance for relative rotation of an upper cable and a lower cable, so that the cable is prevented from twisting, the cable is effectively protected, and the service life of the cable is prolonged. Cable damage is prevented; the loose section cable is located in the cable storage box and cannot wind and scrape an external mechanism of the cable storage box, so that the cable is effectively protected, and the service life of the cable is prolonged. The swivel joint accommodates a section of loose cable through the cable storage box, provides swivel allowance for relative rotation of the upper and lower cables, is simple in structure, is not easy to damage, does not need to be provided with an electric slip ring, is low in cost, and can effectively reduce maintenance cost.

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.

The invention discloses an intelligent watch antitheft device. The device comprises a display stand, a distance alarm and an antitheft chain. Trundles with brakes are arranged on the bottom surface of the display stand. N grooves are formed in the upper surface of the display stand. An infrared transmitting end and an infrared receiving end are connected with a control switch. The control switch is connected with a first alarm. The distance alarm comprises a transmitting end, a receiving end and an alarm. The transmitting end is installed on a watchband. The receiving end and the alarm are installed on the display stand. One end of the antitheft chain is connected with the display stand. The other end of the antitheft chain is connected with the watchband through a buckle. The watchband of the intelligent watch is inlaid in the groove, and the technical effects are achieved that the intelligent watch is protected well and is difficult to steal during display of the intelligent watch.