67 results about "Silicone membrane" patented technology

The utility model discloses a sample preparation mold for a road petroleum asphalt ductility test, which relates to the technical field of road petroleum asphalt ductility tests and comprises an outer mold, an end mold and a shoulder mold which are combined into a mold main body, and a mold cavity is formed in the mold main body. The face, facing the mold cavity, of the outer mold, the face, facing the mold cavity, of the end mold and the face, facing the mold cavity, of the shoulder mold are each provided with a silica gel layer used for preventing asphalt adhesion. According to the sample preparation mold for the road petroleum asphalt ductility test, the contact surface of the outer mold and the petroleum asphalt, the contact surface of the end mold and the petroleum asphalt and the contact surface of the shoulder mold and the petroleum asphalt are all provided with the silica gel films which are not adhered to the petroleum asphalt, so that compared with the use of a separant, the sample preparation mold for the road petroleum asphalt ductility test can be used without early-stage preparation; and normal demolding of the petroleum asphalt ductility test sample preparation can be ensured.

The invention relates to the technical field of electric automobile wire harnesses, in particular to a wheel speed sensor wire harness assembly for an electric automobile, which comprises a wire harness connector and a wheel speed sensor, and further comprises a linear sleeve, a positioning sleeve, a limiting assembly, curved sleeves, a corrugated sleeve and a silica gel film, the two sides of the corrugated sleeve are connected with the curved sleeves, and the ends of the curved sleeves are connected with the linear sleeve. The linear sleeve and the curve sleeve are arranged on the outer side of the line body to form an air bag structure, when the curve part is stretched during steering of the front wheel, the line body is twisted in a large-span mode, and the linear sleeve and the curve sleeve can further move relative to the limiting assembly through the positioning sleeve; the problems that when a vehicle turns, the connecting portions of the two ends of the wire harness assembly connected with the wheel speed sensor at the front wheels of the electric vehicle are damaged due to frequent stress torsion, the exposed area is large due to reserved redundancy, and the wire harness assembly is prone to being impacted by splashing gravel and damaged are solved.

The utility model relates to the technical field of clothing labels, in particular to a liquid silica gel clothing trademark which comprises a base layer, a liquid silica gel film, a silica gel limiting layer, a thermal bimetallic strip and a hot melt adhesive layer, the liquid silica gel film covers the top face of the base layer, a gap exists between the liquid silica gel film and the base layer, and the silica gel limiting layer is located on the top face of the base layer and connected with the base layer. A gap is formed in the substrate layer, a gap matched with the gap in shape is formed in the silica gel limiting layer, the liquid silica gel film can extend outwards along the gap to generate elastic deformation, the gap is filled with the thermal bimetallic strip to be connected with the liquid silica gel film, and the hot melt adhesive layer is located on the bottom face of the substrate layer to be connected with the substrate layer. The three-dimensional degree of the mark / logo on the trademark can be changed according to different temperatures, the style and the structure of the trademark can be enriched, practical significance and popularization value are achieved, and it is expected that good economic benefits can be generated.

A membrane device includes a vacuum device main body having a plurality of vacuum holes such that a real wood sheet to be temporarily attached to a core is mounted in the vacuum device main body, a cover having a silicone film to define a vacuum space together with the vacuum device main body, a vacuum module to suck air in the vacuum device main body through the vacuum holes, and a control unit to compress the real wood sheet and the core for a preset time by sucking air in the vacuum space through the vacuum holes. The control unit removes the vacuum from the vacuum space by controlling the vacuum module so that the compressed real wood sheet is detached, and the vacuum device main body includes sliders to perform wrapping the real wood sheet around the inside of the core while moving upward.

The application provides a sodium silicate silica gel cellulose membrane and a preparation method and application thereof, and belongs to the technical field of silica gel membranes. In the application, a sodium silicate solution with viscosity is immersed between plant fibers, part of the sodium silicate on the cellulose membrane reacts with carbon dioxide in the air to produce amorphous silicic acid gel, and the silicic acid gel is converted into silicon dioxide through natural dehydration and drying, so that the silica gel powder and the cellulose film are tightly connected together. The preparation method provided by the application is simple in operation and low in cost, can be used for production and application in ordinary laboratories with insufficient funds, the sodium silicate silica gel cellulose membrane prepared by the method has the characteristics of adsorbing nucleic acids, can replace silica gel membranes on the market to prepare relatively pure nucleic acid samples, and has a shorter operation time and a higher extraction efficiency than that of using only silicon dioxide particles, silica gel particles and calcium carbonate powder to adsorb nucleic acids in a nucleic acid extraction solution.

The invention discloses a diving protective mask supporting temporary oxygen supply in emergency, and relates to the technical field of diving equipment, the diving protective mask comprises a mask body, a breathing tube body connected with the mask body and a soft silica gel membrane arranged at one end of the breathing tube body, and further comprises a gas inlet and outlet mechanism arranged on the outer wall of the breathing tube body, the temporary oxygen generation mechanism is arranged at the bottom of the outer wall of the breathing tube body, and a small amount of oxygen can be temporarily provided when a diver encounters an emergency of oxygen deficit underwater through the temporary oxygen generation mechanism and the gas inlet and outlet mechanism, so that the brain oxygen deficit state is relieved, and when the diver encounters the oxygen deficit condition, the oxygen deficit state is relieved. When the diver is in use, 'suffocated gas' is blown into the bottom bin and reacts with sodium peroxide filled in the loading box to generate a small amount of oxygen, and then the diver can directly inhale the oxygen, so that the diver recovers consciousness, subconscious water inhaling is avoided, and a self-rescue opportunity can be provided for the diver in emergency situations.

The present invention relates to a storage box with a heating function in the field of cosmetics technology. It consists of a cover and a main body. The cover comprises a pressure plate, a silicone film, and a shell. The silicone film is squeezed and installed on the top of the shell through the plate. There are several round holes on the pressure plate, and a number of notches in the silicone film. This storage box with heating function allows makeup brushes to be inserted into corresponding circular holes of suitable diameters. The cross-shaped notches secure the brush heads, suspending them inside the cover. By activating the switch button and using the display screen and rotation buttons to select the drying time, the drying program starts automatically. It conveniently dries makeup brushes and cotton balls, eliminating the need to wait for air drying.

The utility model discloses a kind of folding OCA processing waste production equipment, including rack, pre-pressing device, first die cutting device, second die cutting device, third die cutting device, pressure device, OCA original film unwinding device, single layer silica gel film unwinding device, silica gel protective film finished product winding device, OCA release film winding device, waste PET film winding device, high-viscosity original film unwinding device, waste winding device, release film unwinding device and edge material unwinding device;The pre-pressing device, first die cutting device, second die cutting device, third die cutting device and pressure device are sequentially horizontally and side by side spaced apart on the rack;By cooperating and setting pre-pressing device, first die cutting device, second die cutting device, third die cutting device and pressure device, so that silica gel protective film is cut in multiple times in the process of production, so that processing is smooth, effectively pulls OCA waste, improves processing efficiency, improves product edge bubble, glue and other quality bad, bring convenience for production operation.

This utility model discloses a voice tremor nursing teaching model in the field of nursing teaching aids. It includes a three-dimensional humanoid model with a left lung model and a right lung model positioned at the chest area. The left lung model is covered with a silicone membrane, forming a pleural cavity model. A catheter is located at the top of the left lung model, with one end extending into the pleural cavity model. Air or liquid is injected into the pleural cavity through the catheter to simulate pneumothorax or pleural effusion. The right lung model includes a detachable and replaceable lung cavity model, lung tumor model, and bronchial obstruction model. A bronchial model is located between the left and right lung models, with a microphone connected to the top of the bronchial model. The two forked ends of the bronchial model at the bottom are connected to the left and right lung models, respectively. This device can replace different models to simulate pathological states, allowing students to intuitively experience the differences in voice tremor under different pathological conditions, improving teaching effectiveness and students' clinical skills training level.

The utility model belongs to the technical field of household articles, and particularly relates to a refrigerator fruit preservation box which comprises a lower shell, the upper portion of the lower shell is in threaded connection with an upper shell, and the outer portion of the lower shell and the outer portion of the upper shell are jointly and fixedly connected with a plurality of anti-skid blocks which are distributed at equal intervals in an annular array mode. The silica gel films are arranged in the two shells, when the device is used, fruits which are not eaten up at a time can be placed in the two shells, after the two shells are connected, the fruits can be sealed and stored, the two shells are in a closed state after being connected, oxidation of the fruits can be reduced, the two shells after being connected are compact in shape, and the device is convenient to use. When the fruit storage box is placed in a refrigerator to be stored, large space is not occupied, meanwhile, the silica gel film can be stretched and changed according to the shapes of different fruits, the fruit storage box can adapt to the fruits of different shapes to be stored and used, the silica gel film is transparent, the states of the stored fruits can be conveniently observed, and the situation that the fruits are rotted and cannot be known is prevented.

The application discloses a soft robot imitating Bobbit worm. The pneumatic bistable driving module of the soft robot is installed on the base through a wire-driven mechanical arm, the root of the four-claw execution module is installed on the pneumatic bistable driving module, and the perception sensor is attached to the four-claw execution module and the pneumatic bistable driving module. The perception sensor is electrically connected with an external acquisition controller, the pneumatic bistable driving module is communicated with an external air pump, and the external acquisition controller is electrically connected with the external air pump. The application can perceive the approaching object in advance and expand the perception range of the soft robot. The energy stored in the bistable diaphragm can be triggered by driving the silicone film capsule, and then the fast closing of the four-claw execution module can be realized, and the response speed of the four-claw execution mechanism is improved. The self-adaptive capture grab can automatically adjust its shape according to the size of the object to implement better grabbing, and the perception sensor on the capture grab increases the friction force when the object is grabbed, so that the purpose of auxiliary grabbing is achieved.

The invention provides a laser measuring device for intraocular lens size detection, which relates to the field of intraocular lenses and comprises a base, a placement table, a fixing mechanism, a laser measuring instrument and a multi-axis movement mechanism, the placing table is fixed at the top of the base; the fixing mechanism is arranged on the placing table and is used for fixing an intraocular lens body to be tested; the laser measuring instrument is arranged above the fixing mechanism; and the multi-axis movement mechanism is arranged on the base, is in transmission connection with the laser measuring instrument and is used for driving the laser measuring instrument to move in a three-dimensional space. According to the laser measuring device for detecting the size of the intraocular lens, silica gel film adsorption and contact are adopted, scratches, indentations or stress concentration possibly caused by a metal clamp are avoided, the precise optical surface of the intraocular lens is perfectly protected, and real nondestructive clamping is achieved.

The utility model relates to a full silica gel lipstick demoulding device, which comprises a demoulding box, a vacuum interface, a vacuum pump, a vacuum pump, a vacuum pump, a vacuum pump and a vacuum pump, and is characterized in that the demoulding box is internally provided with a cavity and is communicated with the cavity; the forming carrier is provided with a moving plate used for sealing the cavity, and the moving plate is provided with a mounting through hole used for placing the silica gel mold; the material fixing assembly comprises a clamping jaw installed in the cavity, the clamping jaw is used for clamping the silica gel mold stretching into the cavity, and a distance is formed between the top end face of the clamping jaw and the movable plate; the clamping jaw has clamping and opening actions, and during clamping, vacuum is matched to expand the injection port of the silica gel mold, so that the lipstick can be conveniently inserted into the lipstick shell middle bundle; during opening, the silica gel film is integrally expanded in cooperation with vacuum, the formed lipstick in the silica gel film can be integrally taken out conveniently, and the demolding function is completed.

To provide a storage box equipped with a heating function, in which items can be stored after washing and drying.SOLUTION: The storage box equipped with a heating function used in the beauty care field is constituted of a cover body and a main body, and the cover body includes a pressing piece, a silicone film and a shell. The silicone film is mounted on the housing by a pressure sheet. The pressure sheet is provided with many circular holes. The makeup pen is held by inserting a makeup pen into a circular hole of corresponding diameter size that hooks into a cross-shaped notch in the silicone sheet. The tip of the makeup pen is suspended / fixed in the internal space of the cover body. The makeup pen in the cover body is dried by turning on the switch button to start the drying program, whereby the automatic drying process of the cosmetics requiring automatic drying can be achieved. For example, a cosmetic pen, cosmetic cotton, or the like that needs to be dried can be washed and left without waiting for drying.SELECTED DRAWING: Figure 1

The invention discloses a bacterial co-culture device capable of promoting culture medium flow, and belongs to the technical field of bacterial culture.The bacterial co-culture device capable of promoting culture medium flow comprises a supporting frame, and a circulating shaking assembly is slidably connected to the interior of the supporting frame and used for promoting gas exchange and increasing the solubility of oxygen in a culture medium; meanwhile, an adjustable waveform disturbance assembly is installed in the circulating shaking assembly and used for simulating the wave type wriggling movement of the intestinal tract, and therefore periodic pressure is applied to the bottom of the silica gel film. The circulating shaking assembly and the adjustable waveform disturbance assembly are adopted, fluid is pushed through overall deformation of a flexible membrane, mechanical shear damage to bacterial cells caused by stirring blades rotating at a high speed is completely avoided, meanwhile, directional flow generated by traveling waves ensures that a culture medium solution can effectively penetrate through a bacterial filtering membrane, and the bacterial filtering effect is improved. Continuous nutrition exchange and signal molecule transmission are provided for bacteria on the two sides of the membrane, and the problem that the transmission efficiency is low due to the fact that molecules only depend on diffusion is solved.

The utility model belongs to the field of detection, particularly relates to a medical instrument sterility detection device, and provides the following scheme aiming at the problems that the existing medical instrument is inconvenient to take out after being detected and a silica gel membrane ring is easy to be unsmooth when being placed: the medical instrument sterility detection device comprises a detection bottle and a bottle cap, and an annular groove is formed in the bottom of the bottle cap; the bottle cap is in threaded connection with the top of the detection bottle, the inner wall of the bottom of the detection bottle is fixedly connected with an annular partition plate, and the top of the annular partition plate is provided with a silica gel membrane ring. In the detection device, the operation block and the circular truncated cone block can push the two upper rotating plates to be far away from each other, and the two lower rotating plates drive the two clamping plates to be close to each other; two clamping plates can clamp a medical instrument, at the moment, a plurality of protrusions can improve the clamping degree, after a bottle cap is covered, an annular groove can seal a detection bottle, the bottle cap can drive a vertical plate to move downwards, and a connecting plate, an outer pressing plate and an inner pressing plate can tightly press a silica gel membrane ring.

A membrane device for manufacturing a crash pad for a vehicle including a real wood sheet includes a vacuum device main body having a plurality of vacuum holes such that a real wood sheet to be temporarily attached to a core is mounted in the vacuum device main body, a cover having a silicone film to define a vacuum space together with the vacuum device main body, a vacuum module to suck air in the vacuum device main body through the vacuum holes, and a control unit to compress the real wood sheet and the core, which are temporarily attached and mounted on the vacuum device main body, for a preset time by sucking air in the vacuum space through the vacuum holes in a state in which the vacuum device main body is covered by the cover.

The present application relates to electric automobile wiring harness technical field, specifically for a kind of electric automobile wheel speed sensor wiring harness assembly, including wiring harness connector and wheel speed sensor, further include straight sleeve, positioning sleeve, limiting component, curved sleeve, corrugated sleeve and silica gel film, the corrugated sleeve both sides are connected with curved sleeve, the end of curved sleeve is connected with straight sleeve.This application forms air bag structure by setting straight sleeve and curved sleeve on the outside of wire body, and when the curve part is stretched during front wheel steering, large-span torsion wire body, combined with straight sleeve and curved sleeve through positioning sleeve, can further be relatively displaced with limiting component, solve the problem that the wiring harness assembly connected by wheel speed sensor at the front wheel of electric automobile is damaged due to frequent force twisting at both ends of wiring harness assembly during vehicle turning, and due to the large exposed area caused by reserved redundancy, easy to be damaged by splashing sand impact.

A self-adaptive locking thyroid incision protector comprises an upper fixing ring and a lower fixing ring, the upper fixing ring comprises a first arc-shaped edge and a second arc-shaped edge, and an upper arc-shaped sliding groove is formed in the inner side face of the first arc-shaped edge; an upper arc-shaped sliding hole is formed in the upper surface of the first arc-shaped edge, an upper pushing block is arranged on the second arc-shaped edge, and the upper pushing block penetrates through the upper arc-shaped sliding hole and is in sliding connection along the upper arc-shaped sliding hole; the lower fixing ring comprises a third arc-shaped edge and a fourth arc-shaped edge, a lower arc-shaped sliding groove is formed in the outer side face of the third arc-shaped edge, a lower arc-shaped sliding hole is formed in the upper surface of the third arc-shaped edge, a lower pushing block is fixedly installed at one end of the upper surface of the fourth arc-shaped edge, and the lower pushing block penetrates through the lower arc-shaped sliding hole and is in sliding connection along the lower arc-shaped sliding hole; a first silica gel film is connected between the first arc-shaped edge and the third arc-shaped edge, and a second silica gel film is connected between the second arc-shaped edge and the fourth arc-shaped edge. The defects in the prior art are overcome, the thyroid incision can be effectively protected in all directions, and the safety and the success rate of an operation are improved.

The invention relates to the technical field of chip packaging, in particular to a silica gel film for CSP (Chip Scale Package) as well as a preparation method and application of the silica gel film. The coating comprises the following components in percentage by weight: 30-50% of organic silicon resin, 20-50% of modified glass powder and 20-50% of fluorescent powder, the preparation raw materials of the modified glass powder comprise a modifier and glass powder, and the modifier comprises 20-50wt% of a silane coupling agent, 30-50wt% of an organic solvent and 20-50wt% of water. The prepared silica gel film is applied to CSP surface mounting of a Mini LED, the light transmittance is larger than 97%, the color tolerance is smaller than or equal to 3, and the material throwing rate is smaller than 2%.

The utility model relates to the technical field of circular cutter die cutting, and discloses a waste discharge jig for circular cutter die cutting, which comprises a front support rod, a rear support rod, a cross rod shaft, a cross frame and a cutter holder, the cross frame is fixedly connected between the front support rod and the rear support rod, the outer side of the front support rod and the outer side of the rear support rod are fixedly connected with fixing blocks, and the cutter holder is fixedly connected with the cross rod shaft. A bearing is fixedly arranged on the fixing block, the transverse rod shaft is rotationally connected to the bearing in a penetrating mode, the outer portion of the transverse rod shaft is fixedly sleeved with a winding roller, the tool apron is fixedly installed on the transverse frame through a fastening bolt, and the tool apron is rotationally connected with a scraper head through a connecting shaft. The waste discharge silica gel film winding device can prevent the waste discharge silica gel film from being scratched when waste materials are removed, the waste materials in the wound waste discharge silica gel film are removed, the waste discharge silica gel film can be used for the second time, and therefore material waste can be prevented.

An oxygen and phosphorus dropwise adding structure suitable for preparing trioctyl phosphate relates to a dropwise adding structure, and is characterized in that an electric telescopic rod (13) extending downwards is arranged at the bottom of a fixed seat (11), an extrusion rod (14) is arranged at the lower end of the electric telescopic rod (13), a hemispherical head (17) is arranged at the lower end of the extrusion rod (14), and the extrusion rod (14) can slide in an extrusion cavity (18) and can be separated from the extrusion cavity (18); the extrusion rod (14) is in transition fit with the inner wall of the extrusion cavity (18); the dripping pipe is arranged at the top of the tank body, the extrusion pipe is arranged at the bottom of the dripping pipe, and phosphorus oxychloride in the extrusion pipe is extruded by the extrusion rod arranged on the electric telescopic rod arranged in the dripping pipe; phosphorus oxychloride in the extrusion pipe is extruded out along a plurality of cross-shaped gaps formed in a semispherical silica gel film arranged at the lower end of the extrusion pipe, and the purpose of spraying and instilling phosphorus oxychloride according to the cross valve principle is achieved.

The utility model relates to the technical field of foaming detection, in particular to a foaming detection system for a foaming material, which comprises a bracket and a lifting seat, a first connecting rod is movably arranged at one end of the lifting seat in the length direction; a second connecting rod is movably arranged at the other end of the lifting seat in the length direction; a first clamping jaw is arranged at the bottom of the first connecting rod; a second clamping jaw is arranged at the bottom of the second connecting rod; the support is detachably connected with a carrier at the bottom of the lifting seat; the carrier comprises a base and a plurality of stacking pieces stacked on the base; accommodating holes are formed in the stacking sheets in a penetrating manner; a filling space is formed between the accommodating hole and the stacking sheet; the top of the filling space is detachably connected with an indicating plate. According to the utility model, the first clamping jaw and the second clamping jaw drive part of the stacked sheets to rise, namely the number of the stacked sheets stacked together can be changed, so that the height of the filling space is changed, and the foaming rate of silica gel films with different thicknesses can be detected.

The present invention relates to a method for preparing a CO2 sensor comprising the following steps: (a) providing a support (1) made of an insulating material comprising a pH-sensitive electrode (2) and a reference electrode (3); (b) providing a double-sided adhesive (4) having an acrylic-based adhesive layer (41), an opposing silicone-based adhesive layer (42), and a through-hole (5) in its thickness; (c) applying the double-sided adhesive (4) to the support (1); (d) applying a carbon dioxide-permeable silicone membrane (6) to the double-sided adhesive (4), thereby obtaining a measuring chamber (7); and (e) filling the measuring chamber (7) with an electrolyte (9). The present invention also relates to a CO2 sensor thus prepared, a multi-sensor device comprising it, and their uses for measuring dissolved or gaseous CO2. Abstract figure: Fig. 1

A CSP packaging structure of an LED chip, comprising an LED chip, a silica gel layer, a transparent glue part and a white glue part, the silica gel layer is formed by a film after the silica gel is solidified, a surface of the silica gel layer is coated with an OCA adhesive layer, the LED chip is fixed by the OCA adhesive layer and the silica gel film, the LED chip is coated with the transparent glue part around the LED chip, a concave arc surface is formed around the transparent glue part, the concave arc surface is used for refracting light, the transparent glue part is filled with the white glue part around the transparent glue part, and the transparent glue and the LED chip are surrounded by the white glue part.

The utility model discloses a manual coating pre-activation device for an automobile table board, and belongs to the technical field of automobile interiors. The device mainly comprises a support, a workbench is fixedly installed at the upper end of the support, a clamping assembly is arranged on the inner side of the workbench, an operation table is fixedly installed at the lower end of the workbench, a control panel is fixedly installed on the front face of the operation table, and a vacuum coating box is arranged at the rear end of the workbench; a rotating roller is connected to the connecting position of the workbench and the vacuum coating box through a bearing, the clamping assembly comprises a two-way air cylinder, piston telescopic rods are fixedly connected to the two sides of the two-way air cylinder, a push plate is fixedly connected to the front ends of the piston telescopic rods, and a clamping plate is fixedly installed on the inner side of the top end of the push plate; a silica gel diaphragm plate is installed at the lower end of the vacuum coating box in a magnetic attraction mode, and a folding supporting rod is fixedly installed at the bottom end of the vacuum coating box. The manual wrapping pre-activation equipment for the automobile table plate is convenient to use and stable in the wrapping process.

The utility model provides a drop-resistant pressure gauge lens silica gel membrane structure, which belongs to the technical field of pressure gauges and comprises a gauge body mechanism, the gauge body mechanism comprises a gauge box, supporting holes are sequentially mounted at four corners of the gauge box, the interiors of the supporting holes are fixedly connected with an external support through fastening screws, and a circular opening is formed in the middle of the top end of a box body of the gauge box. A driving roller shaft used for fastening is arranged in the middle of the top end of the circular opening, a meshing shifting wheel used for rotating is vertically arranged in the middle of the top end of the driving roller shaft, and a corresponding detection process is achieved between the adopted adjusting lampshade and the specific connecting base; one end of the adjusting lampshade is connected in a covering mode through the auxiliary pressure gauge and the connecting guide pipe, and the toggle switch is formed between the adopted three-way pipe and the specific connecting toggle piece and used for normal operation detection of the pressure gauge.

The invention discloses a preparation method of cosmetic freeze-drying baking powder. The preparation method comprises the following steps: S1, raw material mixing: uniformly mixing mica, a vinyl polydimethylsiloxane / polymethylsilane silsesquioxane cross-linked polymer, toner, pearlescent and other components in mixing equipment; s2, compression molding: putting a silica gel sleeve into a metal jig, pouring the pasty material body into a silica gel film, and performing compression dewatering molding through pressure equipment; s3, freezing treatment: putting the formed material body into freezing equipment at the temperature of 40 DEG C below zero to 50 DEG C below zero to be frozen for 30 minutes; s4, demolding and placing: demolding after freezing is completed, and placing for 60 minutes after demolding; and S5, baking and drying: baking in an oven at 60 DEG C for 12 hours to evaporate 95% of water. Compared with the prior art, the method has the advantages that the baked powder prepared by the method is fine and smooth in surface and excellent in texture, and meanwhile, the product has relatively good drop resistance, and is not damaged after vertically dropping from 30cm to a marble slab for two times according to a test.

The invention belongs to the technical field of acoustic functional materials and devices, and discloses a multifunctional acoustic device with broadband sound insulation and acoustic-electric conversion, which comprises a sound insulation unit, a support ring arranged on the front surface of the sound insulation unit, and a frictional electricity energy acquisition unit arranged on the support ring, the sound insulation unit comprises a multi-local-area resonance substrate, a polyimide film and a mass block assembly, the multi-local-area resonance substrate is divided into a center bending structure, a double-bending structure and a single-bending structure, the center bending structure drives a center mass block to vibrate in a reciprocating mode, so that the FEP film and the silica gel film are in periodic contact-separation, and the single-bending structure drives the center mass block to vibrate in a reciprocating mode; alternating current charge transfer is generated between the aluminum foil and the conducting layer, acoustic-electric conversion is achieved, and the three bending structures are coupled with the polyimide film and the mass block assembly. According to the invention, a plurality of effective sound insulation bands are formed in a low-frequency area based on the multi-local resonance structure and are used for inhibiting low-frequency sound propagation; and meanwhile, acoustic-electric energy conversion is realized by utilizing a triboelectric effect, and incident low-frequency acoustic energy is converted into electric energy.

The utility model discloses a product processing forming is with radio frequency machine, including radio frequency heating box, vacuum tank, silica gel membrane seal frame, control system, silica gel membrane seal frame sets up between radio frequency heating box and vacuum tank, be provided with the first drive module and the second drive module of drive silica gel membrane seal frame overturn in vacuum tank, control system is established in vacuum tank, and the controlled end of radio frequency heating box, vacuum tank, first drive module, second drive module is connected with the output of control system respectively, the utility model discloses the cooperation of radio frequency heating box, silica gel membrane seal frame, vacuum tank by from top to bottom setting in proper order, can gather door panel press fit, wooden door and fit, edge, arc forming etc. Operation in an organic whole, realizes the integrated operation of product processing forming, further reduces the production cost of product forming equipment, improves the production efficiency of equipment.