22results about How to "Thin and light" patented technology

The invention discloses a method for making gray cowhide, which comprises: 1. selecting raw cowhide; 2. soaking and disinfecting with medicine solution; 3. removing hair and rotten flesh after washing; 4. scraping oil on the shelf; 5. putting ash on the shelf; 6. rinsing and scraping off residual ash and grease; 7. soaking and softening after washing; 8. soaking and repeatedly pushing with softener after drying on the shelf, and repeatedly grinding after unshelf; 9. repeatedly grinding and polishing; 10. applying oil while wet after washing and letting to penetrate to obtain gray cowhide. The invention soaks and softens the cowhide with tanning and softening liquid containing mirabilite, cinnabar and borax, so that the collagen fibers in the cowhide are softened and loosened and maintain a complete three-dimensional structure, so that the color of the product gray cowhide is white and the transparency is high, and the flexibility of the gray cowhide is greatly improved. The obtained gray cowhide is light, soft, translucent, and milky white in appearance, and the leather board is uniform in thickness, hard and tough, which is suitable for making high-end shadow puppets.

The invention provides a thermal dissociation process for a TGP product and application thereof, and belongs to the technical field of circuit board preparation, and the thermal dissociation process for the TGP product comprises the steps of glue preparation, copper reduction, flexible board cutting, line imaging, developing, etching, film removal DES, OQC sampling inspection, visual inspection, appearance processing, cutting, pretreatment, packaging and warehousing. According to the thermal dissociation process for the TGP product provided by the scheme, the prepared TGP product is relatively light and thin in thickness and relatively good in winding heat dissipation efficiency; and the temperature equalization performance is greatly improved.

The utility model provides a folding table board installed inside a seat armrest, which comprises a folding table board assembly, the folding table board assembly comprises a front table board assembly, a rear table board assembly and double-shaft damping hinges, the two opposite sides of the front table board assembly are rotatably connected with the two opposite sides of the rear table board assembly through the double-shaft damping hinges, and the front table board assembly and the rear table board assembly are connected through the double-shaft damping hinges. The foldable table plate assembly is arranged on one side of the upper connecting arm, the end, away from the foldable table plate assembly, of the upper connecting arm is rotationally connected with one end of the connecting arm, and a supporting beam capable of supporting the upper connecting arm is slidably connected between the upper connecting arm and the connecting arm. The other end of the connecting arm is rotationally connected with the side wall of one side of the mounting arm through the one-way rotating damper. The armrest box is lighter and thinner, damping can be generated only when the table board is put down, the armrest box can be prevented from automatically sliding off under the action of gravity, the process is simpler, the cost is lower, and the size of the needed armrest box is smaller.

The electric heating device of the present invention includes a heating panel, a heating element, a heat insulation component, a fixing shell, a temperature measuring element, and a socket. The heating element is located on the lower side of the heating panel and has a power receiving part. The heat insulation component has a heat insulation cavity with an upper opening for covering the heating element. The fixing shell has a shell cavity with an upper opening for accommodating the heat insulation component, and the upper end of the fixing shell is connected to the heating panel by an adhesive material. The temperature measuring element is installed at the bottom of the heat insulation component. The socket is fixed to the side of the fixing shell and electrically connected to the power receiving part and the temperature measuring element respectively through a power supply wire and a detection wire. The power supply wire is arranged in a power supply groove, and the detection wire is arranged in a detection groove. The interface end of the socket faces the side of the fixing shell. By providing a socket on the fixing shell, external wiring can be quickly connected to the socket of the electric heating device through a plug during assembly. This assembly method is simple, quick, reliable, and interchangeable, achieving modular packaging and good overall product integrity.

This utility model discloses a hypothermia prevention backpack, including a backpack and a vest, which are connected by stitching. The vest has an internal cavity and an air valve, allowing air to be inflated into the cavity. This utility model integrates the backpack and vest, breaking away from the traditional model where thermal equipment needs to be carried and put on / taken off separately. Users no longer need to predict the weather in advance or carry extra heavy clothing. In the event of severe weather or early signs of hypothermia, they can immediately inflate the vest cavity through the air valve to quickly build an insulating layer, greatly improving the immediacy and convenience of protection.

The invention discloses a terahertz vortex generator based on a conductive film spiral slit on a flexible substrate, and belongs to the technical field of terahertz, the terahertz vortex generator comprises a flexible substrate, and one end face of the flexible substrate is coated with a layer of conductive film; the conductive film is provided with a first slit group and a second slit group. The first slit group and the second slit group are spirally arranged by taking the axis of the conductive film as the center, and the spiral directions of the first slit group and the second slit group are the same; wherein the first slit group comprises N first slits; the second slit group comprises N second slits; and the N first slits and the N second slit groups are respectively and sequentially arranged at intervals along two spiral directions. According to the terahertz vortex generator based on the conductive film spiral slit on the flexible substrate, the substrate is the stretchable flexible substrate, the flexible substrate is integrally stretched through the stretching clamp, equal-proportion expansion of the substrate is achieved, the width and radius of the slit are accurately adjusted and controlled, and effective control over emergent vortex waves is achieved.

This utility model describes a thin wall socket with a storage state and a use state. The thin wall socket includes: a housing with a through hole extending to the outside; a floating member with a socket for inserting an external plug; and a plug assembly for inserting with an external connector. In the storage state, the floating member is located inside the housing, and the plug assembly rotates to be partially retracted into the housing. In the use state, the floating member protrudes from the housing through the through hole, and the plug assembly rotates to extend beyond the housing. In the storage state, the thin wall socket has a relatively small and lightweight size, making it easy for users to carry. When needed, the thickness of the thin wall socket increases to allow the insertion of an external connector, and the plug assembly extends to allow insertion into an external power strip. Therefore, the size of the thin wall socket can be flexibly changed, significantly improving its portability and applicability.

The invention discloses a collimated light beam homogenizer based on a liquid crystal flat plate lens pair, which comprises two groups of liquid crystal flat plate lenses which are oppositely arranged in parallel, each liquid crystal flat plate lens comprises a glass substrate, a light orientation layer coated on one plane of the glass substrate, and a liquid crystal polymer film coated on the light orientation layer, the first liquid crystal flat plate lens is used for introducing wavefront difference to an incident light beam, geometric phase distribution is annularly changed, and different phase gradients are formed from inside to outside, and the second liquid crystal flat plate lens is used for correcting the wavefront difference of the light beam passing through the first liquid crystal flat plate lens, so that the flat-topped light beam is collimated and emitted. According to the collimated light beam homogenizer based on the liquid crystal flat lens pair, accurate shaping of incident light beams is achieved through the liquid crystal director design, and the collimated light beam homogenizer has the advantages of being low in cost, small in size, high in flexibility and the like and is widely applied to the fields of laser processing, optical measurement, biomedical imaging and the like.

The utility model discloses a kind of graphene heating lamps, including support plate, LED lamp assembly is respectively arranged in the both sides of the support plate, graphene heating assembly is arranged between the LED lamp assembly, the graphene heating assembly includes top plate, frame is arranged in the bottom of the top plate, hollow portion is arranged in the bottom of the frame, graphene electrothermal film is covered in the hollow portion, starting power supply is installed in the top of the graphene electrothermal film, the starting power supply and graphene electrothermal film electrically connected. The present application takes graphene electrothermal film as core heating element, compared with the product using traditional heating component, volume can be designed more light and thin, and simultaneously because graphene heat conduction speed is fast, indoor temperature can be quickly and efficiently promoted.

The utility model provides an ultrathin alarm, which relates to the technical field of alarms and comprises a shell and a piezoelectric plate. A first stepped groove is formed in the bottom surface of the shell; a second stepped groove is formed in the groove bottom of the first stepped groove; the first stepped groove and the second stepped groove are coaxially arranged; a sounding hole is formed in the groove bottom of the second stepped groove in a penetrating manner; the groove bottom of the first stepped groove is provided with a positioning convex ring protruding downwards. The piezoelectric plate is placed in the first stepped groove, the upper end face of the piezoelectric plate abuts against the lower end face of the positioning convex ring, the lower end face of the piezoelectric plate is flush with the lower end face of the shell, and the outer circumferential wall of the piezoelectric plate is adhered to the inner circumferential wall of the shell through an adhesive. The ultra-thin alarm has the advantages that the piezoelectric patch is flush with the shell, and an original cover body structure is omitted, so that the structure is simpler, the thickness is lighter and thinner, lead transmission is more convenient, and meanwhile, the production cost of the whole alarm is also greatly reduced.

The utility model discloses a catalytic oxidation purification device for cooking fume, which comprises a casing, a smoke inlet and an air outlet are arranged at the bottom of the casing, and an accommodating space is arranged in the casing; the purification structure is arranged in the accommodating space and is positioned above the smoke inlet; the multiple fans are arranged between the purification structure and the side wall of the machine shell, air inlets of the fans face the containing space, air outlets of the fans face the exhaust outlet of the machine shell, and therefore under the action of the fans, relatively clean smoke obtained through treatment of the purification structure flows out of the exhaust outlet to form an air curtain on the side portion of the machine shell; and the high-temperature-resistant plate body is detachably arranged on the machine shell so as to buffer the flue gas. Smoke obtained through purification forms a gas curtain, self-circulation of the smoke is achieved, a flue does not need to be installed, meanwhile, the high-temperature-resistant plate body can buffer the smoke, and the service life of the draught fan is effectively prolonged.

The embodiment of the invention relates to the technical field of communication equipment, and provides terminal equipment which comprises a shell, a sound cavity structure, an annular elastic structure, a first limiting connection structure and a second limiting connection structure. The shell comprises a bottom shell and a surface shell covering the bottom shell, and a limiting piece is arranged on the surface shell; the sound cavity structure is arranged in the face shell, a through hole is formed in the sound cavity structure, and the limiting piece penetrates through the through hole; the elastic structure is arranged in the through hole and arranged on the limiting piece in a sleeving mode. The first limiting connecting structure is formed between the outer side wall of the limiting piece and the inner side wall of the elastic structure; the second limiting connection structure is formed between the hole wall of the through hole and the outer side wall of the elastic structure. Therefore, according to the terminal equipment provided by the invention, the overall thickness of the shell can be thinner on the basis of guaranteeing the tone quality.

The application discloses a cavity type prefabricated segment assembled pier top beam and a construction method thereof. The top plate of the pier top beam is divided into a first top plate and a second top plate, the second top plate is located in the middle of the first top plate, the bottom plate is divided into a first bottom plate and a second bottom plate, the second bottom plate is located in the middle of the first bottom plate, the web plate is divided into a first web plate and a second web plate which are mutually attached, the pier top beam structure comprises a shell and an inner cavity part, the shell comprises the first top plate, the first bottom plate, the first web plate and a flange plate, and the shell is a prefabricated reinforced concrete component; the inner cavity part comprises the second top plate, the second bottom plate and the second web plate, and the inner cavity part is a cast-in-situ reinforced concrete structure. The prefabricated shell is light and thin, the prefabricated shell reduces the weight of the prefabricated segment by 30-50% compared with the prefabricated pier top beam, and is convenient for transportation and hoisting; the pier top segment beam has global stability and seismic performance, the wet joint design of the cast-in-situ beam is removed, the installation speed of the segment assembly is ensured, and the longitudinal splicing joint of the beam is reduced, and the safety of the beam is ensured.

The utility model discloses a radio frequency identification (RFID) card reader applied to an elevator, and relates to the technical field of RFID card readers. The RFID tag comprises a circular outer frame, a front panel embedded or attached to the front surface of the circular outer frame, and an RFID antenna plate installed between the circular outer frame and the front panel. A wave-absorbing electromagnetic film is arranged between the back surface of the RFID antenna plate and the circular outer frame; a nanometer double-faced adhesive tape for pasting is arranged on the back surface of the circular outer frame; according to the scheme, the round outer frame is made of the 6061 aviation grade aluminum alloy material subjected to surface anodic oxidation treatment, corrosion resistance is achieved, it can be guaranteed that fading does not occur for a long time, the size is small, and the structure is light and handy; the front panel adopts a film or glass structure, so that the front panel can be firmly attached to the RFID antenna board without influencing signals emitted by the RFID antenna board, and the sensitivity is high; the wave-absorbing electromagnetic film can effectively isolate signals between the metal and the antenna, and the problem that card swiping is not sensitive is solved.

Embodiments of the present application disclose a display module and a display device. The display module comprises a driving substrate, a cathode and a touch structure layer. The cathode is arranged on the driving substrate. The touch structure layer is arranged on a side of the cathode layer away from the substrate. The touch structure layer is provided with a first touch electrode and a second touch electrode arranged perpendicularly to each other. When the touch structure layer is subjected to an external pressing force, at least one of the first touch electrode and the second touch electrode is multiplexed as a first pressure sensing electrode, and the cathode is multiplexed as a second pressure sensing electrode. The present application aims to provide a functional layer capable of realizing touch and pressure sensing at the same time, so as to improve the integration of the display module.

The invention discloses a UHPC jacking pipe and a preparation method thereof.The UHPC jacking pipe is prepared from P.I cement, quick-hardening sulphoaluminate cement, composite slag powder, silica fume, preprocessed steel fibers, a crystal nucleus early strength agent, quartz sand, a viscosity reducer, powdery carboxylic acid, a dispersing agent and a wetting rheological agent, compared with a pipeline made of common concrete, the UHPC jacking pipe is lighter and thinner, the overall weight can be reduced, and the service life of the UHPC jacking pipe is prolonged. Transportation and installation are convenient; secondly, the UHPC jacking pipe is better in permeation resistance and better in corrosion resistance; hydrating is accelerated through the quick-hardening sulphoaluminate cement, good early strength can be provided, and the formwork turnover rate is increased; the crystal nucleus early strength agent can effectively accelerate the manufacturing period of the UHPC jacking pipe; the introduced composite slag powder is lower in carbon and energy-saving, the viscosity of the UHPC is effectively reduced, and the fluidity is good. The inner wall is smooth and not prone to deposition of sundries, and the service life of the pipeline is effectively prolonged.

The invention discloses a dual-port asymmetric sound absorption structure based on a Helmholtz resonant cavity. The structure is formed by connecting a plurality of asymmetric sound absorption units in parallel, wherein the short pipes of the asymmetric sound absorption units are different in radius. The asymmetric sound absorption unit internally comprises two Helmholtz resonant cavities with different cavity lengths, and the two main waveguides and the branch waveguides are used for transmitting sound waves and connecting the two Helmholtz resonant cavities. The two ends of the main waveguide are open, when sound waves are incident from the two ends, the incident sound waves at one end can be almost completely absorbed, the sound waves at the other end can be almost completely reflected, and due to the fact that the reciprocity of the structure is not broken and the transmission coefficients are the same, dual-port sound absorption can be achieved. A plurality of asymmetric sound absorption units with short pipes with different radiuses are connected in parallel, so that the structure has excellent broadband asymmetric sound absorption performance, and the asymmetric sound absorption frequency band can be effectively widened. The broadband sound absorption effect is excellent in the low and medium frequency range, the openings in the two ends of the main waveguide can achieve the good ventilation and heat dissipation effect, the size is small, the structure is compact, and the device is suitable for noise control in multiple fields.

The utility model discloses a light and thin anti-vibration electromagnetic shielding display screen device which comprises a machine shell, a light and thin anti-vibration electromagnetic shielding display screen and a light and thin anti-vibration electromagnetic shielding display screen, the display screen main body is arranged in the accommodating space; the buffer part is arranged between one side, far away from a user, of the display screen main body and the shell; the shielding diaphragm is arranged on the side, close to a user, of the display screen body, and the size of the shielding diaphragm is larger than that of the display screen body, so that a circle of exposed conductive area is formed on the periphery of the shielding diaphragm; the conductive flexible part is arranged on the conductive area, and the conductive flexible part is in lap joint with the machine shell, so that a complete electromagnetic shielding space is formed by the shielding diaphragm and the machine shell; the conductive flexible part is also used as an anti-vibration part for enabling one side, close to a user, of the display screen main body and the shell to be in a buffer state; and the fixing structure is used for fixing the relative positions of the shielding diaphragm, the display screen and the shell. The display screen device is convenient to install, is light and thin as a whole, and has a good battery shielding effect and an anti-seismic effect.

The invention discloses a breathable heat-preservation hollow fabric which comprises a first surface layer, a second surface layer and a porous layer, the first surface layer and the second surface layer are oppositely arranged, and the porous layer is clamped between the first surface layer and the second surface layer; the direction from the first surface layer to the second surface layer is a vertical direction, and the direction parallel to the first surface layer is a horizontal direction; the porous layer comprises a plurality of first fiber areas and a plurality of second fiber areas, the first fiber areas and the second fiber areas are arranged at intervals in the horizontal direction, the first fiber areas comprise a plurality of first fibers, the first fibers are arranged in the vertical direction, the second fiber areas comprise a plurality of second fibers, and the second fibers are arranged in the vertical direction. The second fibers are arranged in the horizontal direction, and the fiber density in the first fiber area is larger than that in the second fiber area; therefore, the effects of lightness, thinness, heat preservation and breathability of the fabric are achieved at the same time.

The invention provides a reinforcement plate and a preparation method thereof, and electronic equipment, and relates to the technical field of terminals.The reinforcement plate comprises a base body and a ceramic lamination layer, the ceramic lamination layer is located on at least one side surface of the base body, the ceramic lamination layer is made of a ceramic material, and the ceramic lamination layer at least comprises a transition layer and a compact ceramic layer; the transition layer is located between the base body and the compact ceramic layer, the compact ceramic layer is provided with a plurality of first pores which are separated and distributed at intervals, and the porosity of the first pores is smaller than or equal to 0.5%; the transition layer is not straight, the surface of the side, close to the compact ceramic layer, of the transition layer is connected with the compact ceramic layer and matched with the compact ceramic layer in shape, and the surface of the side, close to the base body, of the transition layer is connected with the base body and matched with the base body in shape. Therefore, on the premise that the overall Young modulus and rigidity of the stiffening plate are not changed, the thickness and the weight of the stiffening plate can be reduced.

A microwave sensor based on a differential substrate integrated waveguide reentrant resonant cavity and microfluidic technology, the sensor has a superimposed upper cover plate and a lower bottom plate, the upper cover plate and the lower bottom plate both contain a top metal layer, an intermediate dielectric layer and a bottom metal layer; two resonant cavity monomers are formed side by side between the upper cover plate and the lower bottom plate, each of the resonant cavity monomers is embedded with a microfluidic chip, and the two substrate integrated waveguide reentrant resonant cavity monomers are connected in parallel and connected in series by a power divider. The present invention embeds the microfluidic chip into the substrate integrated waveguide reentrant resonant cavity based on the differential structure configuration, utilizes the advantages of differential structure compensation for environmental interference, high concentration of the reentrant resonant cavity electric field and microfluidic chip can accurately control microfluids, and obtains a high-sensitivity and high-precision sensor with little interference, non-invasive, and easy to integrate with other planar circuits.

The present application relates to the technical field of electronic product shell, in particular to a kind of glass fiber plate mobile phone back cover and preparation method thereof, including glass fiber plate layer, the shielding oil layer being arranged on the upper surface of the glass fiber plate layer, the ink layer being arranged on the upper surface of the shielding oil layer, the UV glue layer being arranged on the upper surface of the ink layer, and the release agent layer being arranged on the lower surface of the glass fiber plate layer, and the ink layer is at least provided three layers.The mobile phone back cover of the present application is made of glass fiber material, has the advantages of light and thin quality, high structural strength, and also has the physical texture, fashionable appearance, high aesthetic degree, greatly improves product appearance effect, and improves product competitiveness.