294results about How to "Reduce conduction" patented technology

The laser cutting device for metal cutting comprises a box body, a bearing plate is arranged in the box body, a bearing bin is formed by the bearing plate and the upper portion of the box body, transmission shafts are rotationally installed on the two sides of an inner cavity of the bearing bin, scraping plates are fixedly installed on the surfaces of the transmission shafts, and a fixing plate is fixedly installed at the top of the inner cavity of the bearing bin; a sliding rod penetrates through the interior of the fixing plate, a top column is slidably mounted at the top of the sliding rod, a spring is fixedly mounted at the bottom of the top column, and an eccentric disc is fixedly mounted at the corresponding end of the transmission shaft. A transmission shaft rotates to drive a scraping plate to rotate and drive an eccentric disc to rotate at the same time so as to separate adhered waste from a bearing plate, and when the eccentric disc extrudes a sliding rod, the sliding rod moves upwards, so that a jacking column is driven to move upwards, then the jacking column collides with the two sides of a cutting seam, the cutting seam vibrates, and the falling speed of the cut waste is increased; and the cutting seams are prevented from being blocked and polluted through timely removal of the waste materials, and the cutting quality is improved.

The invention relates to an automatic edge grinding device and process for the edge of a copper-clad laminate, and relates to the technical field of laminate edge grinding. Comprising a base, clamping plates for bearing the copper-clad laminate are symmetrically arranged in the height direction of the base, and an edge grinding device for grinding the edge of the copper-clad laminate is further arranged on the base; the base is further provided with a limiter for limiting the grinding distance of the copper-clad laminate. Firstly, the edge grinding device can achieve multiple times of edge grinding operation on the copper-clad laminate, burrs and slight surface defects generated after the copper-clad laminate is cut are removed, gradual refining treatment is achieved, and finally a high-quality and high-precision copper-clad laminate product is obtained; and secondly, the limiting device can adjust and control the edge grinding depth of the copper-clad laminates with different sizes, and the situation that due to the fact that grinding is too deep in the edge grinding process of the edge grinding device, the size of the whole copper-clad laminates is reduced, and the quality and performance of the copper-clad laminates are affected is avoided.

The invention relates to the field of cosmetics, in particular to the field of A61K8, in particular to a multi-effect skin-care liposome whitening composition and a preparation method thereof. The multi-effect skin-care lipidosome whitening composition is prepared from the following raw materials: a whitening functional component, polyhydric alcohols, an emulsifier, a plant extract, lipidoids and deionized water, wherein the whitening functional component is prepared from glabridin, tranexamic acid, nicotinamide, acetylchitosamine, diglucosyl gallic acid, ectoin and ergothioneine. The multiple-effect skin-care liposome whitening composition has the effects of inhibiting the activity of tyrosinase, improving the DPPH clearance rate, inhibiting hyaluronidase and the like, and it is guaranteed that the product has excellent whitening and skin-care effects.

The utility model discloses a fluoroplastic insulating high-temperature-resistant fireproof cable, which comprises a cable core, the cable core comprises eight wire cores which are annularly distributed at equal intervals, each wire core is composed of an inner sheath and a conductor, a composite insulating outer layer is wrapped outside the cable core, the composite insulating outer layer is composed of a contact layer, a buffer layer and a reinforcing layer, and the contact layer is wrapped outside the buffer layer. A composite high-temperature-resistant layer is arranged outside the composite insulating outer layer, the composite high-temperature-resistant layer is composed of a high-temperature-resistant base material, a heat reflecting layer and a heat-resistant protective layer, and the composite high-temperature-resistant layer is wrapped with an outer sheath. The problems of cable stability, flame-retardant and fireproof performance, electrical performance, chemical corrosion resistance and large-current transmission capability in a high-temperature environment are solved.

The utility model discloses a bending-resistant two-layer twisted marine symmetrical fireproof communication cable, which comprises an outer-layer cable core body formed by uniformly distributing eight twisted-pair cable cores at intervals in the circumferential direction through an EPDM (Ethylene-Propylene-Diene Monomer) isolation core frame, and the center part of the EPDM isolation core frame is provided with a center hole. Four twisted-pair wire cores and PP resin filling core strips are twisted and jointly wrap an inner longitudinal wrapping layer of a modified silicone rubber ceramic mica fire-resistant composite belt to form an inner-layer wire core body, and the inner-layer wire core body is sleeved with the center hole. And a nylon tape wrapping layer, a copper wire braided shielding layer, a low-smoke halogen-free polyolefin inner sheath layer, a modified silicone rubber ceramic mica fire-resistant composite tape outer longitudinal wrapping layer, a high-temperature glass fiber wire wrapping layer and a low-smoke halogen-free polyolefin outer sheath layer are sequentially wrapped outside the outer-layer wire core body. According to the cable, the 12 pairs of twisted wire cores are arranged in two layers through the isolation core frame, the cable core structure is round and neat, the bending resistance is better, the fire resistance and flame retardance are better, the safety and reliability of the cable are enhanced, and the durability is better.

The invention provides a baking lamp for surgical nursing, and relates to the technical field of nursing instruments. The baking lamp for surgical nursing comprises a base, a connecting column is arranged at the position, close to the rear side edge, of the center of the upper end face of the base, the upper end of the connecting column is movably connected with a first supporting rod through a first connecting piece, and the upper end of the first supporting rod is movably connected with an adjusting structure through a second connecting piece; the other end of the adjusting structure is connected with a lighting structure, the lighting structure comprises a lampshade, a bulb is arranged in the lampshade, a storage groove is formed in the center of the lower end face of the lampshade, a folding sleeve is fixedly connected to the interior of the storage groove, and a protective ring is fixedly connected to the lower end of the folding sleeve. By arranging the lighting structure, when a light source is scattered and the whole support is inconvenient to adjust during use, the folding sleeve connected with the protective ring is pulled out downwards to form a fence, scattering of the light source is reduced, pertinence is higher, and adjuvant therapy is better facilitated.

The utility model discloses a frying and baking machine, which belongs to the technical field of kitchen appliances, solves the problem of inaccurate temperature detection of a temperature controller, and adopts the technical scheme that the frying and baking machine mainly comprises a baking tray component, the baking tray component comprises a baking tray, a shell, a heating pipe and the temperature controller, the heating pipe is used for heating the baking tray, and a first heat-insulating cavity is formed between the baking tray and the shell; the heating pipe is located in the first cavity, the shell is provided with a heat-insulating second cavity, the cavity wall of the second cavity is provided with an avoiding through hole, the temperature controller is arranged in the second cavity and comprises a temperature sensing part, and the temperature sensing part penetrates through the avoiding through hole, extends into the first cavity and is attached to the baking tray. The baking tray is mainly used for enabling the temperature detected by the temperature controller to be closer to the actual temperature of the baking tray.

The invention discloses a lightweight high-strength power cable based on a composite material and application thereof, belongs to the technical field of cable preparation, and aims to solve the technical problem that the lightweight and anti-electromagnetic interference performance of a lightweight cable in the prior art needs to be further improved. The cable comprises a conductor layer, a light shielding layer, a wrapping layer and a composite sheath layer which are sequentially arranged from inside to outside, modified carbon spheres are introduced into a titanium dioxide aerogel structure for filling and loading copper particles, obtained composite aerogel serves as a filling material of the light shielding layer, the modified carbon spheres serve as a cross-linking agent and a filling material of light polyurethane, and the light shielding layer and the composite sheath layer are formed. The composite aerogel and the lightweight polyurethane significantly reduce the density of the cable and significantly improve the lightweight performance of the cable, and through the synergistic cooperation of the copper particles, the titanium dioxide aerogel structure and the hollow carbon spheres, the anti-electromagnetic interference performance of the material is significantly improved.

The invention discloses a variable-speed low-noise axial flow fan, and belongs to the technical field of axial flow fans. A variable-speed low-noise axial flow fan comprises a supporting frame, a fan shell and a fan body. The draught fan body is detachably connected with the inner wall of the draught fan shell, and the supporting frames are located on the two sides of the draught fan shell, detachably connected with the two sides of the draught fan shell and used for supporting the draught fan shell. The fan body comprises a fan blade assembly, a speed change assembly and a motor, and the motor is detachably connected with the fan blade assembly through the speed change assembly and used for driving the fan blade assembly to rotate; the fan shell comprises an outer shell and an inner shell, the front end of the outer shell is fixedly connected with the inner shell, the tail end of the outer shell is detachably connected with the inner shell, and a sealing cavity is formed between the inner wall of the outer shell and the outer wall of the inner shell and used for reducing noise in the axial flow fan.

The invention relates to the technical field of heat preservation felts, in particular to a mesoporous heat preservation and insulation felt with hydrophobicity and a preparation technology of the mesoporous heat preservation and insulation felt. In order to enhance the heat insulation performance of the heat preservation felt, a mesoporous material is mixed with a hydrophobic modified resin material to enhance the heat preservation and insulation felt; fluorosilicone modified silane is prepared, fluorine elements and silicon elements are introduced into the fluorosilicone modified silane, sulfydryl groups introduced in the reaction process are reserved, the fluorosilicone modified silane further participates in subsequent cross-linking of polyurethane emulsion, the cross-linking degree of the resin is increased, and the physical performance of the resin is improved; the fluorine element and the silicon element are introduced in the process, so that the hydrophobicity of the material can be effectively improved, and the heat insulation capability of the heat insulation felt in a humid environment is improved; on the basis, a mesoporous material is further introduced into the hydrophobic polyurethane emulsion, and the defect that the thermal conductivity is improved due to the fact that the polyurethane emulsion modifies the heat preservation felt is overcome by means of the hollow characteristic of the mesoporous material.

The utility model discloses a power distribution cabinet shell cutting device, and relates to the technical field of power distribution cabinet machining. The device comprises a cutting table, a penetrating groove is formed in the cutting table in a penetrating mode, and a collecting box communicating with the penetrating groove is arranged at the bottom of the cutting table; the support is arranged on the cutting table, a stand column is arranged on the support, a motor is arranged at the end of the stand column, and a cutting piece corresponding to the penetrating groove is fixedly arranged on an output shaft of the motor; the bottom of the sleeve shell is an opening, the sleeve shell is arranged on the stand column in a sliding and sleeving mode, a frame plate is arranged at the opening end of the sleeve shell, and rolling wheels are rotationally arranged on the two opposite sides of the frame plate; the stand column is slidably sleeved with the sleeve shell, the motor and the cutting blade are located in the sleeve shell, the frame plate is arranged at the opening end of the sleeve shell, the frame plate is in lap joint with the iron sheet through the rolling wheels and the sponge strips, during cutting, the sleeve shell absorbs noise generated during rotary cutting of the cutting blade so as to reduce conduction of the noise to the outside, iron scrap dust generated during cutting can be blocked, and the cutting efficiency is improved. Scrap iron flying is avoided, and the station machining environment is ensured.

The invention discloses a translational photon optical shutter device capable of being combined with multiple inserts, and the device is characterized in that the device comprises an optical shutter switching assembly, a vacuum chamber, a driving mechanism, and a hinge assembly; the optical shutter switching assembly and the hinge assembly are installed in the vacuum chamber, and the driving mechanism is located outside the vacuum chamber. The driving mechanism drives the optical shutter switching assembly to do reciprocating translation through the hinge assembly and is used for switching control over light passing and light blocking of synchrotron radiation light. An absorber is arranged in the optical shutter switching assembly, the top of the absorber is a light receiving face, and the light receiving face comprises a plurality of inclined faces which are obliquely upward in the incidence direction of synchrotron radiation light and used for blocking the synchrotron radiation light generated by various insertion pieces at the same time. The design of the multi-inclined-plane absorber can block synchrotron radiation light generated by various inserts at the same time, so that the valuable axial space occupied by the device in a light beam line is effectively shortened, and a solid technical basis is provided for the design and layout optimization of the light beam line combined by multiple inserts.

This invention discloses a polymer material heating and pressing device, including a base with a placement mold mounted on the top; an upper plate positioned directly above the base, with guide posts mounted at the four corners of both; a pressing mold also positioned at the bottom of the upper plate; a stud penetrating the upper plate and threadedly connected to it, with the bottom end of the stud connected to the pressing mold; and a protective component mounted on the pressing mold and placement mold. In this invention, the protective component effectively isolates the heat released by the pressing mold during operation, fundamentally avoiding the risk of burns to workers due to accidental contact with the high-temperature pressing mold, and significantly improving the safety of the entire operating environment. Furthermore, in the design of the heating area, by optimizing the layout of the heating elements, the heating area is precisely concentrated in the pressing area of ​​the polymer material. This change allows the heat to act more directly and effectively on the material.

The invention relates to the field of electromagnetic compatibility, and discloses a simplified circuit design method and system for a high-efficiency EMC suppression rectifier diode, and the method comprises the steps: recognizing an interference frequency range of a diode application scene, determining a passive element and an active element of the diode application scene, and building a passive filter of the diode application scene; establishing an active filter of a diode application scene, and combining the passive filter and the active filter to obtain a multi-stage filter; establishing a protection circuit of the multi-stage filter and the target rectifier diode, and constructing a diode integrated circuit of the protection circuit, the multi-stage filter and the target rectifier diode; and simulating the diode integrated circuit to obtain EMC suppression data, calculating a circuit parameter value of the diode integrated circuit, and executing circuit optimization of the diode integrated circuit to obtain a target integrated circuit. According to the invention, the EMC suppression effect of the rectifier diode can be improved.

The present invention discloses a zebrafish temperature-sensitive behavior trajectory monitor and monitoring method, which is provided with a monitoring box, the inner bottom surface of which is provided with a heating box, and the interior of the monitoring box is provided with a warm zone, a normal temperature zone and a low temperature zone from left to right, respectively, and a monitor is installed on the outside of the monitoring box; a box cover is clamped and arranged on the top of the monitoring box, and a fan is installed on the upper end surface of the box cover; it includes: a fixed pipe, the top of which is fixedly connected to the bottom of the fan, and the sides of the fixed pipe are connected to each other through a connecting pipe and a supporting block; a partition plate is fixed inside the monitoring box and serves to separate the warm zone, the normal temperature zone and the low temperature zone, and the two ends of the partition plate are provided with fixed cavities, and a connection channel is reserved inside the partition plate. The zebrafish temperature-sensitive behavior trajectory monitor can reduce the mixing between water flows in different areas by partitioning the inside of the monitoring box and realizing heat insulation of adjacent partitioned areas, thereby improving the accuracy of monitoring data.

This application relates to a multi-isothermal stamping die, belonging to the field of stamping die technology. The multi-isothermal stamping die includes a lower stamping die, an upper main die base, and side die bases. The lower stamping die is provided with a lower die base for placing forgings. The side die bases include a left die base and a right die base. The left die base includes a left sliding block and a left die body disposed on the left sliding block. The right die base includes a right sliding block and a right die body disposed on the right sliding block. Both the left and right die bodies are equipped with a first heating element for heating. The lower die base is provided with a second heating element. The left and right die bodies abut to form a product forming cavity. The left die base, right die base, and lower stamping die are all provided with heat insulation structures to reduce heat loss. This application has the effect of heating the product forming cavity, ensuring the temperature stability of the stamping area, and improving the forming effect.

The utility model relates to the technical field of heat exchangers, and discloses a heat exchanger for chemical engineering, which comprises a pipe body, one side of the pipe body is fixedly connected with a connecting block, the outer surface of the connecting block is fixedly connected with a first flange, one side of the first flange is movably connected with a second flange, and the second flange is fixedly connected with the pipe body. A tube box is fixedly connected to the inner surface of the second flange, supporting legs are fixedly connected to the bottom of one side of the tube box, and a heat preservation sleeve is movably connected to the outer surface of the tube body, so that heat loss in the heat exchange process is reduced, and the efficiency of the heat exchanger can be improved by reducing the heat loss and the heat preservation sleeve; meanwhile, workers can be prevented from being scalded by the high-temperature pipe body, heat is prevented from being dissipated from a seam by conducting sealing treatment on the pipe body and the pipe box, and therefore the efficiency of the heat exchanger is improved, the maintenance frequency of equipment can be reduced, the frequency of replacing parts can be reduced, and the downtime can be shortened.

The utility model relates to an air blast drying box capable of being heated uniformly. The inner box body is arranged inside the outer box body; the air inlet cavity is formed between the outer box body and the inner box body; the shunting strip is fixed at the top of the inner box body; the multiple groups of air inlet holes are formed in the outer side wall of the inner box body; the carrying plate is arranged on the inner side of the inner box body in a height-adjustable mode, and the air volume adjusting assembly is fixed to the top of the outer box body and faces the flow dividing strips. When the uniformly-heated air blast drying box is used for drying materials, hot air enters from the air pipe, firstly makes contact with the flow dividing strips, is divided into two parts under the flow dividing action of the flow dividing strips, flows into the first cavity and the second cavity respectively and finally flows into the inner box body from outside to inside through the air inlet holes, and the materials are uniformly heated in a multi-point air supply mode. And hot air is uniformly conveyed to the internal materials, so that the drying efficiency and the drying effect of the materials are improved.

The invention relates to the field of household appliance design, in particular to a cooling structure of an air fryer, which comprises an air fryer body and two inner containers connected in the air fryer body in a drawing manner, a plurality of symmetrical air inlet holes are formed in the inner rear end of a shell of the air fryer body, and hot air output holes are formed in the rear end surfaces of the inner containers. An air inlet cavity is reserved in the air fryer body, symmetrical heating cavities are reserved in the rear sides, close to the two inner containers, of the air fryer body, gaps are reserved between the two heating cavities and the air inlet cavity, and a plurality of symmetrical exhaust holes are formed in the bottom of a shell of the air fryer body. Through the multi-layer structure of the air inlet hole, the air inlet cavity, the air duct shell, the outer flow guide cover, the inner flow guide cover and the like, a complete cold circulation system which sucks cold air from the outside, circulates in the air to take away heat and finally discharges the heat from the exhaust hole is formed, and it is ensured that the shell temperature of the air fryer body is effectively controlled; and shell deformation and scalding risks caused by high temperature are avoided.

The utility model relates to long water gap related technical field especially relates to a glaze anti -crack type long water gap, the inside of long water gap ladle end, long water gap middle transition section and long water gap tundish end all is equipped with buffer composite component, the inner wall of long water gap ladle end, long water gap middle transition section and long water gap tundish end is provided with anchor assembly. The utility model discloses through the setting of buffer composite component, through the gradient change's honeycomb hole and hole, the nanometer heat conduction coating of dynamic adjustment heat conduction efficiency, realizes thermal stress dispersion and temperature regulation, and buffer composite component cooperates anchor assembly and anchors gradually complementary, and the destruction of heat stress to glaze layer is reduced to heat dissipation and buffer structure, and the anchor structure guarantees that glaze layer does not fall off under certain thermal stress and external force effect, and the anti -crack of long water gap glaze is realized together, and the overall performance and service life of long water gap are improved.

The present disclosure provides a DMOS device with a junction field plate and its manufacturing method. A drain region is located on a surface of a semiconductor substrate. A source region is located in the semiconductor substrate at a bottom of a first trench. A gate electrode is located at the bottom of the first trench. Therefore, longitudinal voltage resistance is achieved, which may reduce a size of the entire device, decrease Rdson, and greatly optimize a relationship between voltage resistance and Rdson. The junction field plate improves an effect on reducing surface resistance. At the same time, a depth of trenches in the DMOS device may be reduced, and thereby a depth-to-width ratio of the device is reduced, improving the feasibility of increasing a voltage resistance level. Both the source region and the drain region in the DMOS device are led out on a same surface, which may be compatible with a technology for manufacturing a CMOS device. A second doped polycrystalline silicon layer includes a first doped sublayer and a second doped sublayer with different conduction types. Therefore, in a case of an N-type gate electrode, a P-type doped layer may be directly connected to a potential of the gate electrode, which improves an effect of the junction field plate.

The invention discloses a formula and a preparation method of a reflective heat-insulating coating for a metal roof, comprising the following raw materials in parts by mass: 50-57 parts of styrene-acrylic emulsion, 12-15 parts of titanium dioxide, 10-15 parts of nano titanium dioxide, 16-18 parts of modified ceramic hollow microspheres, 16-20 parts of deionized water, 2-3 parts of a film-forming aid, 0.3-0.5 parts of a defoaming agent, 0.1-0.3 parts of a preservative, 0.06-0.12 parts of a multifunctional aid, 0.1-0.2 parts of a dispersant, and 0.4-0.6 parts of a thickener. The nano titanium dioxide is rutile nano titanium dioxide that has been surface treated with inorganic substances, and the modified ceramic hollow microspheres are ceramic hollow microspheres that have been modified with nano zinc oxide. The invention can significantly improve the anti-ultraviolet performance of the coating, reduce the damage of ultraviolet rays to the coating, and increase the service life by adding nano-grade titanium dioxide to the reflective thermal insulation coating for metal roofs. By adding modified ceramic hollow microspheres to the reflective thermal insulation coating for metal roofs, the heat transfer inside the building can be effectively reduced and the indoor temperature can be lowered.

The utility model discloses a low-energy-consumption building external wall insulation board structure which comprises an insulation board base material layer, an airtight layer is fixedly arranged on the inner side face of the insulation board base material layer, an inner heat insulation layer is fixedly arranged on the inner side face of the airtight layer, an inner protection layer is fixedly arranged on the inner side face of the inner heat insulation layer, and a structural layer is fixedly arranged on the outer side face of the insulation board base material layer. Compared with the prior art, the novel structure has the advantages that the heat reflection layer and the airtight layer are introduced, heat conduction and absorption are effectively reduced, the heat preservation effect is improved, and energy consumption of a building is reduced; water permeation is effectively prevented, the waterproof performance of the insulation board is improved, the deformation problem caused by water absorption expansion of an insulation material is avoided, the structural stability of the insulation board is enhanced by introducing the structural layer, the durability of the insulation board is improved, and the service life of the insulation board is prolonged.

The utility model relates to an integrated wallboard, belongs to the technical field of integrated wallboards, and particularly relates to a multilayer diatom ooze integrated wallboard which comprises a wallboard body, a fiber partition plate is arranged in the wallboard body and forms the reverse side of the wallboard body, and a gypsum board is arranged outside the fiber partition plate. The wall face of the side, away from the fiber partition plate, of the gypsum board is coated with a diatom ooze coating, a partition plate is arranged between the gypsum board and the fiber partition plate and composed of honeycomb plates, the bottom end of the interior of the partition plate is filled with a foam layer, and an activated carbon layer is laid on the top of the foam layer. According to the wallboard, the partition plate is arranged between the fiber partition plate and the gypsum board, and the multiple holes are formed between the fiber partition plate and the gypsum board through the partition plate, so that the strength of the wallboard is guaranteed, meanwhile, the weight of the wallboard is reduced, and the problem that an existing wallboard is heavy is solved.

The present application proposes an electrochemical device, comprising a shell, an electrode assembly, a first pole ear, a first seal and a first layer. The electrode assembly is arranged in the shell. The first pole ear is electrically connected to the electrode assembly and extends out of the shell from the shell, and the first pole ear includes a first part arranged in the shell. The first seal is arranged on the first pole ear, and at least a part of the first seal is bonded to the shell. The first layer is arranged on at least a part of the surface of the first part, and the thermal conductivity of the first layer is less than or equal to 0.5w / (m·k). The electrochemical device provided in the present application has high safety when overcharged. The present application also provides an electronic device.

The utility model discloses an inflatable heating and hydrops bag integrated body position blanket for lithotomy body position, which comprises a waterproof pad, a heating pad, a liquid storage bag, a liquid storage bag, a liquid storage bag, a liquid storage bag, a liquid storage bag, a liquid storage bag and a liquid storage bag, and is characterized in that the waterproof pad is cushioned on an operating table; the inflatable cushion is arranged on the waterproof cushion and is internally provided with a heating structure; the liquid collecting bag is connected to one end of the waterproof pad and used for receiving urine and blood; the inflatable cushions are divided into a plurality of parallel groups; the utility model relates to the technical field of medical instruments. According to the inflatable heating and hydrops bag integrated body position blanket for the lithotomy body position, the waterproof pad capable of being inflated and heated is arranged under a patient, use is more comfortable, the inflatable head ring can prevent pressure injury behind a pillow, the sacrococcygeal inflatable ring supports and suspends the sacrococcygeal portion, pressure injury of the sacrococcygeal portion can be prevented, and the patient can use the body position blanket for the lithotomy body position. The liquid collecting bag arranged on one side can be used for collecting urine and blood to facilitate metering, and clinical problems of prevention of hypothermia and pressure injury, accurate metering and the like in the operation can be solved at the same time.

The utility model discloses a cold storage tank with a heat preservation layer in the technical field of cold storage tanks, which comprises a cold storage tank body, a heat preservation mechanism arranged on the outer side of the cold storage tank body, a connecting mechanism arranged on the outer side of the heat preservation mechanism, a first heat preservation tank body arranged in front of the cold storage tank body, and a second heat preservation tank body arranged behind the cold storage tank body. The cold storage tank with the heat preservation layer is composed of the cold storage tank body, the heat preservation mechanism and the connecting mechanism, the heat preservation mechanism is designed in a separated mode, so that the heat preservation layer can exist independently, the overall weight and size of the cold storage tank cannot be excessively increased, and heat conduction and heat loss in the cold storage tank can be effectively reduced due to the existence of the heat preservation mechanism; the influence of the external environment temperature on the cooling liquid is reduced, and a good heat preservation effect is provided; the connecting mechanism has the beneficial effects of being stable in limiting and fixing, safe in connection and easy and convenient to mount and dismount, the stability and safety of the cold storage tank body are ensured, and follow-up maintenance and replacement operation are facilitated.

The utility model discloses sunscreen and heat-insulating oxford fabric, relates to the technical field of oxford fabric, and aims to solve the problem that part of oxford fabric is difficult to have sunscreen and heat-insulating properties and moisture dissipation and air permeability at the same time. According to the key points of the technical scheme, the heat-insulating sunscreen comprises a heat-insulating inner layer and a sunscreen outer layer which are fixedly connected with each other, the sunscreen outer layer and the heat-insulating inner layer are both provided with a plurality of pleats, a plurality of through holes are formed in the pleats of the sunscreen outer layer, the heat-insulating inner layer is fixedly connected with a plurality of sunscreen strips, each sunscreen strip is provided with a plurality of grooves, and the grooves are communicated with the through holes. After the heat insulation inner layer is pleated, the contact area between the fabric and the skin can be reduced, so that heat conduction is reduced, sweat of the heat insulation inner layer is conducted to the sunscreen outer layer through moisture absorption of the sunscreen strips, and the moisture dissipation and drying speed of the sunscreen strips is increased through the breathable cavities and the through holes; the V-shaped cross section and the groove cross section of the pleated outer sunscreen layer can improve the sunscreen effect of the fabric. According to the thermal insulation fabric, the thermal insulation effect of the whole fabric is improved by utilizing the good thermal insulation property of the aerogel fibers.

The utility model provides a novel low-temperature-rise household sewing machine motor, which comprises a sewing machine motor, a gear box, a sewing machine frame mounting plate, a driving shaft, a transmission belt, a low-temperature-rise protective shell and a circulating water pipe, and is characterized in that the gear box is fixedly arranged at the top end of the sewing machine motor and is meshed with the sewing machine motor through a gear shaft; the sewing machine rack mounting plate is fixedly mounted on one side of the gear box and is fixedly mounted on the sewing machine rack; the driving shaft is meshed with the interior of the gearbox through the gear shaft, the transmission belt wraps one end of the driving shaft and is meshed with a transmission wheel of the sewing machine, and the low-temperature-rise protection shell is located on the outer side of the motor for the sewing machine; a circulating water pipe is fixedly mounted at the bottom of the low-temperature-rise protection shell; the arrangement of the low-temperature-rise protection shell can rapidly cool the motor, has multiple cooling modes, and can rapidly cool the motor when the temperature is too high.