42results about How to "Close and firm contact" patented technology

The invention belongs to the technical field of SPR sensors, and particularly relates to a SPR sensor made with a graphene/gold/D-type plastic optical fiber and a preparation method. The method comprises the following steps of: (1) forming a groove shaped sensing area in the fiber, and preparing a D-type fiber; (2) growing the graphene on a copper foil by using a chemical vapor deposition method,and directly evaporating a gold film onto the graphene through a thermal evaporation method, to obtain a gold/graphene/copper foil composite layer; (3) corroding the copper foil in the gold/graphene/copper foil composite layer, and moving the obtained graphene/gold film to a D-type optical fiber, to obtain the sensor. According to the preparation method, the gold is directly evaporated onto the graphene through the thermal evaporation method, so that the graphene and the gold film are perfectly laminated; and then the graphene/gold etched off the copper foil is moved to the D-type plastic optical fiber, so that the structure of the gold plus graphene is realized on the plastic optical fiber. The prepared SPR sensor made with the graphene/gold/D-type plastic optical fiber has the characteristic of a high recognition sensitivity of complementary and non-complementary DNA strands.

The invention belongs to the technical field of easily released release film, and in particular, relates to an anti-static release film for a high-stickiness adhesive tape. The anti-static release film includes a thin film base material and a silicone oil release agent attached to the surface of the base material, wherein the silicone oil release agent is prepared from the following raw materials: vinyl silicone oil, hexamethyl-disilazane, epoxy acrylate resin, silica particles, a platinum catalyst, cyanoacrylate resin, 2-hydroxy ethyl acrylate, fumed silica, polyethylene glycol, and ethyl acetate. Compared with the prior art, the anti-static release film has the following advantages that a variety of release agents are mixed and are subjected to reaction to obtain the silicone oil release agent having close molecular structure and stable performance; the silicone oil release agent makes tight and firm contact with the thin film base material, is not easy to fall off and has the release force of 4-5 g/in; the anti-static release film makes contact with the high-stickiness adhesive tape, the contact area is small, separation is easier, the surface of the high-stickiness adhesive tape has no residues after separation, the yield rate of products is improved, and the anti-static release film is suitable for promotion and use.

The invention discloses a board feeding and stamping mechanism, and belongs to the field of building material machining equipment. A rolling mechanism is horizontally arranged at the part, on the upper side of a stamping mechanism, on a fixing support; a horizontal movement guide board is arranged on a reciprocating guide rod in a sliding manner in the horizontal direction; a rolling air cylinderis fixedly arranged on an air cylinder support in a manner of being inclined downwards; a reciprocating pressure roller is connected with a rotating roller support horizontally and rotationally; a printing pressure mould is arranged at the middle part of the upper side of a printing connecting board fixedly and horizontally; a lifting pressure board is horizontally arranged on the upper side of the printing pressure mould; the two sides of a space above the lifting pressure board are correspondingly connected with pressure board rotating rollers horizontally and rotationally; horizontal pushing pressure boards are horizontally and fixedly arranged at the output end of a horizontal pushing air cylinder and are arranged on lifting and adjusting supports in a sliding manner in the horizontaldirection; and pressure board oblique planes are arranged on the lower sides of the horizontal pushing pressure boards. The structural design is reasonable, boards can be subjected to stamping machining efficiently and stably, the stamping automation degree of the boards is raised, and the machining and using requirements are met.

The invention discloses an acoustic guitar. The acoustic guitar comprises a guitar body and strings, wherein the guitar body comprises a head, a neck, a resonator and a string lower-end fixing structure; the string lower-end fixing structure comprises a bridge and a lower nut. The acoustic guitar is characterized in that the string lower-end fixing structure further comprises string penetration holes and a string lower-end fixing member; the string penetration holes penetrate through the bridge below the lower nut and a panel of the resonator in an oblique downward manner, and are communicated with the interior of the resonator; the multiple string penetration holes correspond to the strings one to one; the lower ends of the strings penetrate into the resonator through the string penetration holes; the string lower-end fixing member comprises a string fixing portion; the whole string fixing portion is fixedly mounted inside the resonator; the side end, close to the panel of the resonator, of the string fixing portion is a string fixing side end; the string fixing side end is isolated from the inner side face of the panel of the resonator mutually; the end portions of the lower ends of the strings are fixedly limited to the string fixing side end, and the lower ends of the strings can be fixed. The acoustic guitar has the advantages that the panel of the resonator is not prone to deformation and the sounding quality of the guitar can be better ensured accordingly.

The invention relates to a water cooling heat radiation system for an electromagnetic heating device. The water cooling heat radiation system comprises a water cooling heat radiation ring and further comprises a water storage tank and a cooling pump, wherein the water cooling heat radiation ring is connected with the water storage tank through the cooling pump to realize water circulation exchange between the water cooling heat radiation ring and the water storage tank, the water storage tank is provided with a water temperature detection device, a water level detection device, a water incoming device, a spill port and a water circulation control module. The water cooling heat radiation system is characterized in that when temperature in the water storage tank is detected by the water temperature detection device to be higher than spill temperature, the water incoming device is started through the water circulation control module for water incoming, so temperature in the water storage tank is reduced.

The utility model relates to an intelligent detection device for a zinc oxide arrester, which comprises a connecting electrode, a resistor disc, a sheet electrode, a detection module, a current lead,a tubular electrode, a metal braising cover, an annular nut, a guide cover, a nut, a preset bolt, a shell, a solar panel, an antenna and a disconnector. The current lead is welded to the connecting electrode, bypasses the resistor disc and the sheet electrode, penetrates through a mutual inductance coil on the detection module and is connected to the tubular electrode, so that the current lead andthe resistor disc form a parallel wiring method, and a screw hole is reserved in the connecting electrode to adapt to zinc oxide arresters with various purposes, the leakage current, lightning strokefrequency and temperature of a zinc oxide arrester can be monitored on line, and the condition of the disconnector can be monitored. When overvoltage occurs, a fault point is found, a positioning function is realized, a grounding current generated due to the closed circuit of the arrester is isolated, the operation states of the zinc oxide arrester and the disconnector are monitored on line in real time, the power failure frequency is reduced, and rapid repair can be carried out.

The invention discloses automatic laser welding equipment with a slide guide rail. The automatic laser welding equipment with the slide guide rail comprises a welding equipment box body, a support plate, a left-side welding fixture, a right-side welding fixture and a laser welding head, wherein the support plate is installed at the top of the welding equipment box body; double stations at the leftside and the right side are formed on the support plate; the left-side welding fixture and the right-side welding fixture are arranged at the double stations at the left side and the right side separately; the laser welding head is arranged above the left-side welding fixture and the right-side welding fixture; and the laser welding head is installed on an XY-axis moving frame. By forming the double stations at the left side and the right side on the welding equipment box body, close and firm contact between an upper part and a lower part which are superposed, of a housing and a support of the product, is ensured; the laser welding head arrives at an initial position of the product and starts to carry out laser welding, the operation is convenient and rapid, machining links for the product are effectively reduced, and the laser welding can be directly carried out on a specific position of the product without the need of drilling; and the problem of bulging of a rivet is avoided afterwelding spraying for the product.

The invention discloses an electrocardio garment. The electrocardio garment comprises a garment body and electrode assemblies; the garment body is provided with conductive buckle holes; each electrodeassembly comprises an electrode part and a conductive buckle cover, and the conductive buckle covers can be fixed to the conductive buckle holes in the garment body to make the electrode assemblies fixed to the garment body, and detached from the conductive buckle holes in the garment body to make the electrode assemblies detached from the garment body.

The invention discloses a gear driving buckle type high-heeled shoe with a replaceable heel. A gear driving buckle heel removing device of a sole comprises a buckle and a pull rod which are in shaft connection with the sole, one end of the buckle is inserted into a groove of the heel, a gear part on the buckle is arranged at the other end of the buckle and meshed with a gear part on the pull rod at one end of the pull rod, and a limiting and fixing block is arranged on the sole and clamped with the part, inserted into the heel, of the buckle. According to the lever principle, the buckle and pull rod need small space and size only, sole space is saved, the space use ratio of the sole and the heel is suitable, and the thickness and strength of the heel are improved. The overall structural process is simple and practical, in addition, gear meshing transmission is adopted, transmission is reliable, the transmission ratio is large, labor is saved, and the heel can be driven by the buckle to rotate downwards just by lightly pulling the pull rod down.

The invention discloses a full-automatic film laminating machine, which belongs to the field of film laminating machines. The full-automatic film laminating machine comprises a workbench and a motor,the left and right sides of the upper end of the workbench are respectively and fixedly connected with a fixed plate, one side of each fixed plate is rotatably connected with a roller, and the left side of the roller is rotatably connected with a rotating shaft of which the left side is fixedly connected with a threaded block, the left side of the threaded block is fixedly connected with a rotating handle, the fixed plate is provided with a through hole, a motor shaft of the motor is fixedly connected with a clamping block, and through the elastic effect of a spring, a fastening rod is conveniently pushed to move upwards, so that paper is conveniently pushed to move upwards, the paper makes contact with the roller more tightly and stably, and gluing and film pasting work of the paper is facilitated; and through connection of an ejector rod and a nut, the fastening rod is conveniently fixed and limited, meanwhile, through internal connection of the threaded block and the through hole, the rotating shaft is conveniently and rotationally connected with the interior of the left side of the roller, the clamping block is conveniently clamped with the interior of the right side of the roller, the roller is conveniently mounted and dismounted, and other parts are prevented from being dismounted.

The invention provides a refrigerator and a counter door therefor. The counter door comprises a counter base and a counter door seal. The counter door seal is mounted on the counter base. When the counter door is closed, the counter door seal is in butt joint with a counter frame of the refrigerator. According to the technical scheme, the counter door is mounted on the counter base, so that a groove used for mounting the counter door seal need not be made in the counter frame, large thickness of a foam layer (namely an insulation layer) on the counter frame can be guaranteed, and the problem that small thinness of the foam layer caused by making the groove in the counter frame in the prior art causes dew is avoided. Meanwhile, using heating wires is not required, process operations are simplified, product cost is lowered, and products are better in market competitiveness.