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

The invention relates to a method for preparing a surface self-grown titanium nitride conducting film modified lithium titanate, which comprises the following steps of: uniformly mixing lithium titanate powder with solid nitrogen source in proportion in a dispersion medium in a mode of ultrasound or ball milling, drying the obtained slurry at the temperature of between70 and 120 DEG C, raising temperature to 600 to 900 DEG C in the inert protective atmosphere after grinding, preserving the heat for 10min to 1h, and then cooling together with a furnace to obtain the surface self-grown titanium nitride conducting film modified lithium titanate. Through heat nitrogen reaction, a layer of high-conductive film TiN is self-grown on the surface of the lithium titanate; the TiN film is firmly combined with the lithium titanate; and the prepared high-conductive Li4Ti5O12 / TiN material has high multiplying power of charge-discharge property and excellent circulating property. The preparation method has the advantages of low cost, simple operation and safety, and easy realization of mass production.

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 discloses an oxygen evolution electrocatalytic material, a preparation method and applications thereof, wherein the catalytic material contains an iron-nickel-chromium layered double hydroxide (FeNiCr-LDH) and a metal substrate, the FeNiCr-LDH vertically grows on the surface of the metal substrate in situ, and the metal substrate contains an iron element, a nickel element and a chromium element. According to the invention, a one-step hydrothermal synthesis method is adopted, a metal substrate is used as a semi-sacrificial template, ultrathin nano-sheet-like FeNiCr-LDH grows on the surface of the metal substrate in situ under the regulation and control of a 2,5-dihydroxy terephthalic acid ligand to obtain an electro-catalytic material, and the electro-catalytic material is directly used as a self-supporting electrode for an electro-catalytic oxygen evolution reaction; the prepared electro-catalytic material has excellent electro-catalytic activity and good electrochemicalstability; and the preparation process is simple and feasible, the cost is low, and the electro-catalytic material has a large-scale industrial application prospect.

The invention discloses a continuous reciprocating stamping mechanism, and belongs to the field of constructional material process machinery and equipment. A stamping mechanism and a driving mechanismof the continuous reciprocating stamping mechanism are sequentially and fixedly arranged on one side of a fixing bracket from the top down; a rotating disk is horizontally and fixedly arranged at theupper end of a transmission rotating shaft; the outer end of the upper side of the rotating disk is horizontally and rotatably connected with a transmission roller; a reciprocating guide plate is arranged at a guide plate rotating roll in the horizontal direction in a rolling manner; a reciprocating channel adapted to the transmission roller is horizontally arranged in a guide bracket on the lower side of the reciprocating guide plate; a printing stamper is horizontally and fixedly arranged at the middle part of the upper side of a substrate connecting plate; a lifting pressing plate is horizontally arranged on the upper side of the printing stamper; and the two sides of the lower part of a pressing roll bracket on the lower side of a pressing plate guide rod are horizontally and rotatably connected with stamping rotating rolls correspondingly. The continuous reciprocating stamping mechanism is reasonable in structural design, and a plate can be subjected to continuous reciprocating translational motion conveniently, quickly and stably and stamped quickly and efficiently to meet the requirements for machining and using.

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 present invention provides a method used for petroleum exploration downhole multi-grade micrologging and an electric coupler. An electric cable which can bear pull is used for connecting the electric coupler in series and putting the electric coupler into a well; after the depth requirement is achieved, the support leg of the electric coupler is stretched by supplying power and is contacted with a well wall stratum closely and stably; then a surface source is exploded to produce earthquake wave; the earthquake wave is transmitted into a wave detector in the electric coupler by the support leg; data are returned to a control recording instrument on the ground by the electric cable, and the collection of stratum data is achieved. The support leg of the electric coupler is controlled to close by reverse power supply and is departed from the well wall stratum, the electric coupler drives a ground roller to rotate, the electric coupler is sent to the next stratum for collecting, and the multi-grade micrologging construction is achieved.

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.

A front wiring system for a wall switch socket is characterized in that a wiring part of the switch socket is changed to be connected to a wiring seat of a wiring bracket with a hollow middle part from a wiring seat on the back surface of an original switch socket panel, and then an open head socket panel and a cover plate are mounted. The transmission path of an access power supply is as follows:a wire-a wiring head on the wiring bracket-a lower metal contact piece on the wiring bracket-an upper metal contact piece on the back surface of the panel- a head or jack function piece on the panel.Through the improvement, the operation is more convenient, the disturbance to the wiring part is avoided in the whole wiring process and the installation process of the head socket panel and the cover plate, and the wiring is more stable and reliable.

The invention discloses a rolling ring assembling method of a drying machine. The rolling ring assembling method of the drying machine comprises the following steps that (1) equipment is manufacturedby adopting a section making mode; (2) one section where a rolling ring of the drying machine needs to be installed is separately; (3) a steel plate is adopted to roll into a cylinder; (4) two supporting circular flanges are manufactured, and the two supporting circular flanges are used as supporting circles of the cylinder obtained in the previous step to be placed inside the cylinder, so that the inner wall of the cylinder is in close contact with the outer circumferential surfaced of the two supporting circular flanges and is connected in a welded mode; (5) a supporting plate is welded to the outside of the cylinder, moreover, vertical turning is carried out, and the supporting plate is turned to reach the size which can be interference fit with the rolling ring of the drying machine; (6) after turning of the supporting plate is completed, the rolling ring of the drying machine is heated and is installed by utilizing the principle of thermal expansion and contraction; and (7) aftercooling, the rolling ring of the drying machine is in interference fit with the turned supporting plate. According to the rolling ring assembling method of the drying machine, the functions that the stress concentration during assembly is reduced, the phenomenon that the rolling ring is separated from the cylinder body is avoided, and the normal operation of the equipment is ensured are achieved.

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 heat dissipation structure for an underwater LED lamp. The heat dissipation structure comprises a metal lamp housing, a transparent lampshade, and a bottom cover, wherein the transparent lampshade comprises an upper ring hood, a lower ring hood, a transparent sheet and a sealing ring; a base plate is arranged inside the transparent lampshade; a plurality of LED beads are arranged on the base plate; a heat dissipation plate is arranged under the base plate; a plurality of clamping grooves are formed in the lower surface of the base plate; each clamping groove is connected with the corresponding horizontal section of each L-shaped heat pipe; a metal expansion barrel is arranged inside the metal lamp housing; the vertical section of each L-shaped heat pipe penetrates through a through hole in the lower ring hood and extends into a ring cavity defined by the inner wall of the metal lamp housing and the outer wall of the metal expansion barrel; when the bottom cover is fixedly connected with the lower end of the metal lamp housing from bottom to top, the vertical sections of the L-shaped heat pipes are tightly clamped between the inner wall of the metal lamp housing and the outer wall of the metal expansion barrel. The structure disclosed by the invention fully utilizes the quick heat conducting property of the heat pipes, so as to greatly enhance the heat dissipation effect of the underground LED lamp; the heat dissipation structure is simple, and very easy to assemble, so as to greatly improve the efficiency of assembly and production.

The invention discloses an elastic component driving clamping buckle type high-heeled shoe with a replaceable shoe heel. An elastic component driving clamping buckle heel removal device of the elastic component driving clamping buckle type high-heeled shoe comprises a clamping buckle and a pull rod which are in shaft connection with a shoe sole separately. One end of the clamping buckle is inserted into a groove of the shoe heel, the other end of the clamping buckle is connected with the pull rod through an elastic component, the shoe sole is provided with a limiting fixing block, and the limiting fixing block is clamped to the portion, inserted into the shoe heel, of the clamping buckle. On the basis of the lever principle, the space and size needed by the clamping buckle and the pull rod are small, the space of the shoe sole is saved, the shoe sole and shoe heel space utilization rate is proper, and the thickness and the strength of the shoe sole are enhanced; the whole structural technology is simple and practical; by arranging an elastic component, the phenomenon that the shoe heel is disengaged and vibrates after the clamping buckle moves can be avoided, and the fixing and limiting effects are further achieved.

This application provides the NiFe‑LDH@CoS x / NF composite material and its preparation method and application, the preparation method comprises: adding iron source and urea to deionized water, stirring to obtain the first reaction mixture; mixing the first reaction mixture with foamed nickel (NF) at 80-120°C Under hydrothermal reaction for 6-10 hours, the NiFe-LDH / NF composite material is obtained; the cobalt source and the sulfur source are dissolved in deionized water to obtain a second reaction mixture; the NiFe-LDH / NF composite material is immersed in the second reaction mixture, NiFe‑LDH@CoS was obtained by electrochemical deposition x / NF composites. NiFe‑LDH@CoS prepared by the above method x The / NF composite possesses excellent OER and HER properties simultaneously, and can be used as a bifunctional catalyst for total water splitting.

The invention discloses a buckled type heel-replaceable high-heeled shoe driven by a slider. The high-heeled shoe comprises a slider-driving buckle heel disengaging device which comprises a buckle and a pull rod, the buckle is connected with a shoe sole through a shaft, one end of the buckle is inserted into a groove of a heel, the other end of the buckle is provided with a buckle sliding groove, the buckle is movably connected with the pull rod through the pull rod slider, the pull rod slider is connected with one end of the pull rod and located in the buckle sliding groove, the pull rod drives the buckle to rotate anticlockwise and be separated from the heel through the pull rod slider sliding along the buckle sliding groove, a limiting fixing block is disposed on the shoe sole and connected with the buckle in a clamped mode, and the buckle is inserted into the heel. The whole structural process is simple and practical, the slider is used for driving, processing and manufacturing are simple, and the installation precision requirement is low. People only need to exert little force to pull down the pull rod so that a first rotary shaft can drive the buckle to rotate anticlockwise around a second fixed shaft, then the heel is taken down to be replaced, after the heel is replaced with a preferred heel, the heel is pressed with effort so that the slider can return to the original position, at the time, the pull rod is driven to rotate around a first fixed shaft and reset, and the shoe is safe and reliable.

The invention provides a bridge-cutoff aluminum and wood composite door / window and belongs to the field of building consumable materials. The bridge-cutoff aluminum and wood composite door / window comprises an aluminum-wood composite profile and glass. A foam heat-insulating strip is arranged at the contact position of the aluminum-wood composite profile and the glass, and the glass is hollow glass. The window provided by the invention has good heat preservation and heat insulation effects and can resist wind pressure and rain seepage.

The invention discloses an auxiliary presentation device for mulberry winter bud medicine treatment, which belongs to the technical field of mulberry winter bud medicine application. An auxiliary presentation device for mulberry winter bud medicine treatment comprises a conical inner cylinder and a conical outer casing. The conical inner cylinder includes a A pair of semi-conical arc plates, a pair of elastic cloth strips are fixedly connected between the pair of semi-conical arc plates, the invention can be fixed on the branches of mulberry trees for a long time, so as to realize the long-term and continuous application of medicines to the winter buds of mulberry trees , at the same time, it has applicability for different sizes of mulberry branches and mulberry winter buds, and in the long-term experimental process of winter buds, it can carry out multiple supplementary additions of medicaments without disassembly or replacement. The auxiliary treatment process can greatly reduce the workload of the staff, improve the efficiency of chemical application, and enable the winter buds to absorb the chemical continuously and stably by themselves, facilitating the normal and stable growth of the winter buds.

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 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 spliced external bus grounding switch based on a bus post insulator, and belongs to the technical field of power transmission and transformation engineering. The switch comprises an original bus post insulator in a power transmission and transformation system, a static contact arranged at the top end of the bus post insulator and electrically conducted with a bus, a grounding knife bar arranged on a bus post insulator mounting base, a moving contact arranged at one end of the grounding knife bar, and a transmission mechanism fixedly connected with the grounding knife bar. According to the bus grounding switch, the existing bus post insulator is utilized, the grounding knife bar and the operating mechanism of the external grounding switch are used, the existing buspost insulator and the support are used as attachment, the newly-added bus grounding switch is assembled in a splicing and externally-hung mode, the existing bus post insulator is prevented from beingdisassembled, and power failure time and a safety risk during a construction period of the bus grounding switch due to replacement of the bus post insulator are reduced.

The invention discloses a curb mold facilitating installation of an airfield runway guide light. The curb mold facilitating installation of the airfield runway guide light comprises an upper mold body and a lower mold body. The upper mold body comprises an upper cover and an upper shell, first fixing holes and second fixing holes are formed in the four corners of the upper cover and the four corners of the upper shell correspondingly and fixedly connected through bolts, a first pouring opening is formed in the bottom end of the upper cover, a first trapezoid groove is formed in the middle of the upper shell, and a first line clamping groove is formed in the bottom of the first trapezoid groove. The lower mold body comprises a lower cover and a lower shell, and third fixing holes and fourth fixing holes are formed in the four corners of the lower cover and the four corners of the lower shell correspondingly. The effect of convenient installation is realized by arranging the first trapezoid groove and a second trapezoid body. The effect of convenient installation of wires is realized by arranging the first line clamping groove and a second line clamping groove. A curb can make more tight and stable contact with the ground by arranging contacts. Therefore, the problem of installation cost of the curb and the guide light of an airfield runway is effectively solved.

The invention discloses a stray corrosion ice layer inhibition method in electrochemical processing, and belongs to the technical field of electrochemical processing. A low-temperature environment isutilized, the stray corrosion effect of stray current in the processing process is reduced by covering the non-processing surface of a workpiece with an ice layer, and the quality of the workpiece processing surface is improved. The stray corrosion ice layer inhibition method comprises the following steps that (1) an ice layer insulating protective film is prepared on the surface of a workpiece tobe processed; (2) the working environment is kept at a low temperature, and the surface needing to be processed is subjected to electrochemical processing through a processing channel; and (3) afterprocessing is finished, the temperature of the processing environment is raised, and after the ice layer is melted, the workpiece is taken out.

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 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.