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443results about How to "Achieve waterproof" patented technology

Bamboo-plastic composite material

The invention provides a bamboo-plastic composite material which is obtained by that raw materials such as plastic, recycled waste plastics, bamboo powder, modifier, chemical agent, lubricant, etc. are mixed in different proportions and extruded out to get series bamboo-plastic granule; the invention can be used for manufacturing different products such as bamboo-plastic boards, wood-plastic composite profiles and wood-plastic tubular products, etc. through extruding. The series bamboo-plastic granule can be produced in a continuous large volume and is characterized in that the production efficiency is high, the cost is low and the performance-price ratio is high, etc. The series bamboo-plastic granule can be used for replacing wood, and the cost thereof is lower than wood-plastic materials while the mechanical strength thereof is higher than wood-plastic materials, therefore the series bamboo-plastic granule can be widely popularized for use. The series bamboo-plastic granule is a novel cyclically reutilized material resource after wood-plastic material.
Owner:戴福寿 +1

Stable and reliable four-rotor plant protection aircraft

The invention discloses a stable and reliable four-rotor plant protection aircraft which comprises a body and a body upper cover for covering the body. A control system and a power supply circuit are mounted in an accommodation space formed by the body and the body upper cover, the power supply circuit comprises a strong current circuit and a weak current circuit, the strong current circuit supplies power for a motor, the weak current circuit supplies power for the control system and is laid in the body, and the strong current circuit is laid outside the body and connected onto an electronic governor through an arm. The body is integrally designed, the control system is reasonably placed and firmly fixed through fixers, the body is covered by the body upper cover to form a closed space, strong current and weak current are insulated by the closed space, so that water proofing and dust prevention are achieved, and electromagnetic interference of the control system is solved.
Owner:SHENZHEN HI TECH NEW AGRI TECH CO LTD

Exterior wall waterproofing heat-insulating decorating integrated material and preparation method thereof

InactiveCN105694625AMeet various style requirements of high-end and high-end exterior finishesShort construction periodFireproof paintsAnti-corrosive paintsPolymer scienceSludge
The invention relates to an exterior wall waterproofing heat-insulating decorating integrated material and a preparation method thereof.The preparation method includes: using conventional resin like polyurea and polyurethane as raw materials, adding compound micropowder prepared from solid waste and sludge, and adding a mixed modifier and a thixotropic agent to prepare A-compound slurry; adding a promoter and a hardener, and performing spray coating, brush coating, roll coating and pouring methods to obtain the exterior wall waterproofing heat-insulating decorating integrated material.The material has the comprehensive advantages of good waterproof effect, high heat insulativity, high hardness, high hole closing rate, low density, good anti-seepage performance, high corrosion resistance, low linear expansion coefficient, high softening temperature, oxidization resistance, aging resistance, flame retardancy and firmness in binding with a substrate.When the material is used for building exterior walls, multiple times of leveling, waterproofing, heat insulating and decorating construction are not needed, on-site moisture-free operation and one-time forming can be realized, and the material is short in construction period, extremely low in cost and great in market prospect.
Owner:NANJING KAIBA ADVANCED MATERIALS CO LTD +1

Second-level coal mine rescue robot system

The invention discloses a second-level coal mine rescue robot system. The system comprises a detection robot and a carrying robot, wherein the detection robot detects related environmental information at a place where a coal mine accident occurs in real time; the carrying robot transports the detection robot to a place nearby the place where the coal mine accident occurs from the ground along the existing transportation channel which is formed in a coal mine underground tunnel and synchronously detects related environmental information in the coal mine underground tunnel in real time in the transportation process; and the carrying robot is a wheel robot and the detection robot is a crawler robot. The system has a reasonable design, high intelligentization degree and reliable working performance and is convenient to use and operate; and the carrying robot and the detection robot second-level robot system effectively solves the problems that: the underground conditions of a coal mine are severe, the place where the accident occurs is far away from a well head, the crawler rescue robot has a limited moving range and cannot effectively monitor the environmental information of the place where the accident occurs, and the like.
Owner:XIAN UNIV OF SCI & TECH

Multi-dimensional personnel and equipment intelligent positioning wearable device

InactiveCN105137465ARealize full positioning trackingCapable of collecting and processing multi-dimensional positioning dataSatellite radio beaconingWireless communicationRadio frequency signalIBeacon
The invention discloses a multi-dimensional personnel and equipment intelligent positioning wearable device, and the device comprises a wireless communication module which is used for collecting related positioning data and enables the related positioning data to be remotely transmitted; a Beidou / GPS positioning module which is used for collecting and analyzing a Beidou / GPS satellite signals, carrying out position calculation, and outputting latitude and longitude information; a BLE data collection module which is used for collecting the MAC, field intensity and TxPower of a Ibeacon Bluetooth signal; a WIFI data collection module which is used for collecting the MAC and radio frequency signal intensity of a WIFI host; an RFID data collection module which is used for collecting the ID and radio frequency signal intensity of an RFID host; a rotating speed and acceleration measurement module which is used for collecting the acceleration and rotating speed of the device; and a CPU module which is used for the management of the whole unit. The device is suitable for the whole-course positioning of the personnel and equipment in different geographic environments, such as an open environment, an indoor environment, commuting ports, and the like.
Owner:CHENGDU ASIONSYS IND CO LTD

Manufacturing method of double-faced waterproofing pile-face dual-purpose leather of indumentum and leather boards

InactiveCN101445842AIn line with physical and chemical performance indicatorsComply with special chemical indicatorsTanning treatmentPre-tanning chemical treatmentDual purposeChemical index
The invention discloses a manufacturing method of double-faced waterproofing pile-face dual-purpose leather of indumentum and leather boards; the method comprises three parts that: manufacturing process of the pile-face dual-purpose crust leather and waterproofing treatment of the leather boards, the process of dyeing, retanning and stuffing, and indumentum waterproofing process. The physical andchemical indexes, specialty chemical index, waterproofing index, anti-washing index and dry cleaning resistant index of the manufactured double-faced waterproofing pile-face dual-purpose leather of indumentum and leather boards are all in accordance with international or industrial standards.
Owner:JIAXING UNIV +1

Double-layer glue LED display screen and processing method thereof

The invention discloses a double-layer glue LED display screen and a processing method thereof. The double-layer glue LED display screen includes a circuit board and an LED light-emitting chip mountedon the surface of the circuit board and further includes a black glue layer covering the surface of the circuit board and a transparent adhesive layer which has a flat surface and covers the black glue layer and the LED light-emitting chip, wherein gaps of the LED light-emitting chip are filled with the black glue layer, the upper surface of the LED light-emitting chip is flush with the black glue layer, to form a flat surface. The double-layer glue LED display screen causes the LED light-emitting chip to be protected by the black glue layer, surface color consistency after display screen splicing is ensured, the black glue layer is flushed with the upper surface of the LED light-emitting chip, the viewing angle of the display screen is expanded, a moire pattern phenomenon is avoided, a display effect of the double-layer glue LED display screen is improved, and the transparent adhesive layer is taken for protection, so that waterproof, fireproof, dustproof, antistatic and pressure-proof effects can be achieved.
Owner:SHENZHEN SHOWHO TECH CO LTD

Photovoltaic waterproof coiled material for roof and preparation method for photovoltaic waterproof coiled material

The invention discloses a photovoltaic waterproof coiled material for a roof. The photovoltaic waterproof coiled material is in a layered structure and comprises a waterproof coiled material base material, a flexible membrane photovoltaic battery assembly, a membrane layer and a coating layer sequentially from inside to outside. The invention also discloses a method for preparing the photovoltaic waterproof coiled material for the roof. The method comprises the steps of (1) preparing the waterproof coiled material base material: cleaning one side of the surface of the waterproof coiled material base material for standby application; (2) preparing the photovoltaic battery assembly: coating the front face of the flexible membrane photovoltaic battery assembly which is provided with the surface packaged by a fluorine-containing TPT polyester membrane or an ethylene-tetrafluoroethylene copolymer membrane with a nanoscale silicone acrylic coating or a nanoscaleperfluorocarbon coating; (3) performing combining and packaging: performing stacking in the sequence of the flexible membrane photovoltaic battery assembly, a Sika single-component high-modulus polyurethane sealant and the waterproof coiled material base material, and performing roll pressing and laminating machine vacuum pumping, so that layers of elements are bonded closely, and a product is obtained. The preparation method is simple, low in cost, multiple in option of substrates and suitable for large-scale industrial production.
Owner:新大运防水科技(唐山)有限公司

Integral construction method for heat preservation and decoration of outer wall

The invention discloses an integral construction method for heat preservation and decoration of an outer wall, relating to the technical field of constructional engineering, in particular to a construction method for external heat insulation of an outer wall. The construction method comprises the following steps of: processing base level, dividing mesh and playing a line, cutting plate, mounting a bottom bracket, mounting a postposition bearing bracket, sticking plate materials, reinforcing mechanical fixing components, caulking, dividing joint to do waterproof sealing and coloring, repairing dividing-joints and repairing a whole body. The invention solves the difficult problems of hollowness, cracking, dropping, soaking and the like of architectural coating, and synchronously achieves the architectural effects of heat preservation, heat insulation, water resistance, decoration and the like.
Owner:华新建工集团有限公司

Paster LED outdoor water-proof module group

The invention relates to a patch LED outdoor waterproof module. A transparent cover is arranged between a pedestal and a faceplate; a faceplate positioning column and a pedestal positioning column are arranged on the transparent cover; a corresponding locating hole and a corresponding threaded column are respectively arranged on the faceplate and the pedestal to fixedly connect the transparent cover with the pedestal and the faceplate; the frame around is fastened and filled with a sealant (12); a PCB circuit board is fixedly connected with the pedestal; LED lamps are regularly arranged on the PCB circuit board; LED lamp holes corresponding to the LED lamps are disposed on the faceplate, and loopholes are uniformly distributed on the faceplate. The patch LED outdoor waterproof module can efficiently realize the waterproof effect of the patch LED display screen, so that the patch LED display screen can be used in all-weather condition, the display effect is good, and the images are clear.
Owner:BEIJING XINGGUANG FILM & TV EQUIP TECH CO LTD

Glass fiber filter material and preparation method therefor

The invention discloses a glass fiber filter material. Glass fiber cloth is taken as a carrier. Foaming coatings are arranged inside and outside the glass fiber cloth. Bubble holes with a diameter of 2-17 micrometers are existed in the foaming coatings. The filter material is obtained after preparation of glass fiber, PTFE dipping and preparation and processing of PTFE coatings. The filter material has advantages of water resistance, good adhesive force, high temperature resistance, rub resistance and the like.
Owner:YINGKOU CHUANGSHIJI FILTER MATERIALS

Electric car charging system and electric car parking charging method

The invention provides an electric car charging system and an electric car parking charging method. The system comprises a control platform and a plurality of charging piles mounted at the peripheriesof different electric car parking spaces, all the charging piles are connected with the control platform through a network, and mechanical-arm-type charging devices capable of being freely changed are mounted on the sides, close to the electric car parking spaces, of the tops of the charging piles. At least two distance measuring sensors are arranged on each electric car parking space, the tops of the charging piles are provided with the degree-of-freedom freely-changeable mechanical-arm-type charging devices formed by means of the method that a plurality of joint arms are hinged together, amotor is arranged at each joint, and the two ends of each joint are provided with rotary seats. According to car model information uploaded by a user and electric car berthing position information measured by the distance measuring sensors, coordinate information of electric car charging ports relative to the charging piles can be calculated, according to the coordinate information, charging plugsat the tail ends of the mechanical-arm-type charging devices are automatically controlled to be plugged into the charging ports of cars, the mode that charging guns are plugged into the charging ports manually is not needed, and convenient and rapid effects are achieved.
Owner:SHANGHAI DIANJI UNIV

Contact network state on-line monitoring/detection device based on public network transmission

The invention discloses a contact network state on-line monitoring / detection device based on public network transmission, comprising a plurality of lower computers and remote upper computers which are installed on a return circuit; the upper computers communicate with the lower computers through a GPRS / GSM wireless network; and a mobile phone can control part of the functions of the lower computers. The remote computer comprises a node operation panel, a power supply monitoring panel, a sampling parameter configuration panel, a time display / recording panel, and a data display / extraction and analysis / computer panel; the lower computer comprises a main control chip, a trigger circuit, a switch circuit, a sampling module, a power supply monitoring module, a data transmission module, a data transmission auxiliary module, a data transmission switch module, a time service module, a start-up module, an audio sensor module, a state monitoring sensor module, and a self-power supply module. The lower computer utilizes various sensors to collect the state parameters of the contact network structure, current, environment and the internal of the device, and the upper computer displays the obtained state parameters in the panels and records to finally generate a technology report. The invention can collect various state parameters, and realizes full-day, unmanned and independent work.
Owner:WUHAN UNIV +2

Underwater multiphase flowmeter based on Ba133

The invention discloses an underwater multiphase flowmeter based on Ba133 and used for oil well metering of an underwater process system. The underwater multiphase flowmeter comprises a flowmeter body, a Venturi tube module, a radioactive source module, a detector module, an electronic bin module, a temperature and pressure sensing module and a differential pressure sensing module, the Venturi tube module is sealed inside a channel of the flowmeter body, the radioactive source module, the detector module, the temperature and pressure sensing module and the differential pressure sensing module are waterproof and connected to the flowmeter body in a sealed mode, the electronic bin module is waterproof and connected to the detector module in a sealed mode. The underwater multiphase flowmeter is suitable for measuring multiphase flow directly underwater, can be placed the underwater environments of ocean wells and the like, and is suitable for on-line flow real-time monitoring of underwater single-well or multi-well oil and gas production systems.
Owner:LANZHOU HAIMO TECH CO LTD

Mobile power pack having wireless emission receiving function

The invention discloses a mobile power pack having a wireless emission receiving function. The mobile power pack comprises a mobile power pack housing body. A cell, a common coil and a control device are arranged in the mobile power pack. The control device comprises a charging / discharging control circuit, a wireless charging emission / receiving control circuit, a wireless charging emission drive circuit and a wireless charging receiving / rectifying circuit. The cell is bidirectional connected with the charging / discharging control circuit. The output end of the charging / discharging control circuit and the output end of the wireless charging emission / receiving control circuit are connected to the input end of the wireless charging emission drive circuit. The output end of the wireless charging emission drive circuit is connected to the input end of the common coil. The output end of the common coil is connected to the input end of the wireless charging emission drive circuit and the input end of the wireless charging / rectifying circuit. The output end of the wireless charging emission / receivingcontrol circuit is connected to the input end of the wireless charging receiving / rectifying circuit. The output end of the wireless charging receiving / rectifying circuit is connected to the input end of the charging / discharging circuit control circuit.
Owner:XIAMEN NEWYEA MICROELECTRONICS TECH CO LTD

Micro-power consumption control method of motion monitoring and tracking equipment

The invention discloses a micro-power consumption control method of motion monitoring and tracking equipment. A hardware energy consumption management and control part and a software energy consumption dynamic strategy part are combined; in the hardware energy consumption management and control part, by adopting control CPU frequency reduction and IO configuration, embedded secondary development of a communication CPU module, and complete isolation between the communication CPU module and a power supply, a dormant current of a whole machine is enabled to be smaller than 5 [mu]A; and in the software energy consumption dynamic strategy part, after a remote background server receives reported data of a terminal, according to parameters of the terminal, a terminal energy consumption managementand control strategy is formulated and sent to the terminal for execution. By controlling the power consumption of the whole machine, during the dormant period, the working current of the whole machine is less than 5 [mu]A; and in the tracking period, the communication CPU module works and performs data interaction with the remote server, the power consumption of the whole machine is less than 80mA, and when the communication CPU module is dormant in the tracking period, the power consumption of the whole machine is less than 1 mA.
Owner:CHENGDU ASIONSYS IND CO LTD

Multifunctional super-hydrophobic textile finishing agent, and preparation method and applications thereof

The invention discloses a multifunctional super-hydrophobic textile finishing agent, and a preparation method and applications thereof. The preparation method comprises following steps: a precursor of an oxide sol and a graphite oxide aqueous dispersion are dispersed in deionized water, an anionic surfactant is added, a catalyst is added for hydrolysis and condensation reaction after uniform dispersion so as to obtain a mixed reaction system, and the mixed reaction system is heated to 30 to 50 DEG C for 3 to 12h of reaction so as to obtain a hydrosol; a functional agent is added into the hydrosol so as to obtain the multifunctional super-hydrophobic textile finishing agent. The multifunctional super-hydrophobic textile finishing agent is safe, is friendly to the environment, is excellent in effect, is used for super hydrophobic and multifunctional finishing of textile, is capable of providing textile with six functions including super-hydrophobic property, flame resistance, antibacterial property, stain resistance, ultraviolet resistance, and skin protection performance, is capable of eliminating adverse effect of the plurality of functions, improving the synergistic effect; the preparation method is simple and convenient, is easy to control, and is suitable for large scale production.
Owner:石狮市杰立纺织科技有限公司

Retaining structure of foundation pit for main pier bearing platform of bridge at river bedrock on gentle slope and construction method thereof

The invention discloses a retaining structure of a foundation pit for a main pier bearing platform of a bridge at river bedrock on a gentle slope. The retaining structure comprises a cofferdam building island and is characterized in that a water-stop curtain for steel sheet piles is arranged around the cofferdam building island and is composed of multiple steel sheet piles vertically arrayed side by side; side edges of adjacent steel sheet piles are occluded with each other in order to form a quadrangular water-stop curtain; the inside of the water-stop curtain of the steel sheet piles is provided with a support curtain for steel pipe piles; the support curtain for the steel pipe piles is composed of multiple steel pipe piles vertically arrayed side by side; the inside of the support curtain for the steel pipe piles is provided with angle steel crossbeams; and the angle steel crossbeams are closely attached to the inside of the support curtain for the steel pipe piles and welded with the steel pipe piles together in order to form a quadrangular crossbeam supporting and reinforcing support. The retaining structure of the foundation pit for the main pier bearing platform of the bridge at river bedrock on the gentle slope and the construction method thereof have following beneficial effects: water-stop and water-proof function of the foundation pit can be fulfilled; excavating construction of the deep foundation pit of the bearing platform in water and smooth construction of the part of the bearing platform can be ensured; safety of the foundation pit is ensured while construction speed and quality are improved; and construction cost is decreased.
Owner:CHINA 19TH METALLURGICAL CORP

Dual polarization integration plane lens antenna

The invention discloses a dual polarization integration plane lens antenna. The antenna which is in a layered structure is sequentially provided with a plane lens, a secondary feed source and a dual polarization primary feed source; a metal antenna support is arranged on the exterior. According to the dual polarization integration plane lens antenna which is based on a plane substrate integration waveguide structure, a substrate integration waveguide cavity antenna serves as a dual polarization feed source to perform feed on the secondary feed source, the secondary feed source and the primary feed source form into an equivalent feed source to feed the plane lens commonly, phase compensation is obtained from the lens, spherical waves are converted to be plane waves, and accordingly the antenna with high gain, high efficiency and stable pointing direction is achieved. The antenna aiming at development requirements of plane integration and a minimized long-distance wireless communication system with high gain, allows dual polarization and is low in profile, easy to integrate with a millimeter wave circuit is achieved under the Q-LINKAN application background. The dual polarization integration plane lens antenna has the advantages of being simple in design, firm in structure, compact in size and being capable of being integrated with the plane circuit.
Owner:ZTE WAVETONE SCI & TECH +1

High-reliability hermetical packaging method for precise instruments

InactiveCN102815462AChange the internal environment of the packageFor long-term storageShock-sensitive articlesLiquid dispensingEngineeringAntistatic Materials
The invention discloses a high-reliability hermetical packaging method for precise instruments, and belongs to the technical field of packaging. The method includes: unpacking and checking a to-be-packaged instrument, replacing overdue oil in the to-be-packaged instrument, cleaning oil stains and dirt outside the to-be-packaged instrument, and drying; and performing interior packaging, envelope sealing treatment and exterior packaging and boxing. By controlling the interior packaging environment, taking protective measures such as envelope sealing, damping and buffering, and adopting novel packaging materials such as high-penetration-resistance materials, reinforced pierce preventing materials and antistatic materials, sealing reliability can be improved, various packaging protective effects can be achieved, and the requirements on sealing protection of various types of precise instruments can be met. The high-reliability hermetical packaging method for precise instruments has the advantages that the interior packaging environment of the precise instruments is changed, protective functions such as water proofing, damp proofing, shock proofing and oil proofing are realized, and stored articles can be protected from being damaged by severe environments to realize long-term storage.
Owner:中国人民解放军空军勤务学院

Automatic spraying device, spraying production equipment and automatic spraying method for floor side

The invention relates to a processing technology of floors. An automatic spraying device for a floor side comprises a containing slot, wherein the containing slot can be used for containing the floor side, the containing slot is provided with a spray head and a paint recovering opening, the spray head is connected with a paint transmission pipeline, and the paint recovering opening is connected with a paint recovering pipeline. Automatic spraying production equipment for the floor side comprises a floor feeding device, an automatic spraying device, a drying device and a polishing device, wherein the automatic spraying device comprises the containing slot which can be used for containing the floor side, the containing slot is provided with the spray head and the paint recovering opening, the spray head is connected with the paint transmission pipeline, and the paint recovering opening is connected with the paint recovering pipeline. The automatic spraying device for the floor side is used for spraying, the automation degree is high, and both sides of the floor have uniform spray amount and uniform color, thereby solving the problem of a manually operated original method, lowering the labor intensity of workers and realizing continuous operation; and the paint recovering opening is arranged, thereby improving the utilization ratio of paint and greatly lowering the production cost.
Owner:GUANGDONG YINGRAN WOOD IND

Multifunctional safety helmet

The invention provides a multifunctional safety helmet. The multifunctional safety helmet comprises a helmet shell and a fastening band, wherein a helmet lining sweat absorption band is arranged on the inner surface of a helmet brim of the helmet shell; a polycrystalline silicon solar cell panel is stuck on each of the two sides of the top of the helmet shell; a front side of the helmet shell is connected with an energy storage small fan through a retractable pipe; the polycrystalline silicon solar cell panels are connected with the energy storage small fan through a cell box; the cell box is provided with a bidirectional charging USB (Universal Serial Bus) connector; an LED (Light Emitting Diode) headlamp, a near electric acousto-optic emitter and a mini-type camera are mounted at the front part of the helmet shell; an organic glass protection cover is connected with the bottom of the front end of the helmet shell; the organic glass protection cover is integrally provided with a self-suction filtering type particular-matter-proof breathing sticking film; a bracket is arranged on the side face of the helmet shell; and a Bluetooth earphone is mounted on the bracket. The safety helmet integrates a plurality of functions; the safety helmet has a small size, is convenient to operate and is convenient to carry when being worn; the safety helmet can be detached and worn freely according to the requirements of workplaces; any part is detachable and optimization of a working environment is realized; and bodies can be protected and guarantees are provided for construction tasks.
Owner:XIAJIN POWER SUPPLY CO STATE GRID SHANDONG ELECTRIC POWER CO

Hermetically sealing waterproof construction method for basement

The present invention discloses a hermetically sealing waterproof construction method for a basement, and relates to the field of building waterproof construction. The method comprises the steps of: successively performing construction of waterproof materials to a base plate, side walls and a top plate for slope excavation underground construction after concrete cushion, the side walls and the top plate are completed, then making waterproof protective layers to prevent waterproof layers from being destroyed when assembling reinforcement subsequently, and finally performing waterproof construction of the top plate. A four-side surrounded waterproof coiled material layer is formed in the basement, every node and seaming positions are ensured to be sealed and firmly bonded by adoption of the hermetically sealing technology, the hermetically sealing waterproof effect is achieved, and leakage is completely prevented.
Owner:XI NIU PI WATERPROOFING TECH CO LTD

Short circuit preventing socket and electric connector

The invention provides a short circuit preventing socket and an electric connector. The short circuit preventing socket comprises a front layer (11), a back layer (10), a shell (4) and a lock mechanism, wherein the lock mechanism comprises a lock rod (1), a first steel ball (14), a positioning sleeve (2), a special-shaped lock block (13), a baffle ring (5), a first spring (6) and a spring seat (8); a plug is provided with an unlocking sleeve (18); the unlocking sleeve is provided with a second groove (19) which is matched with the first steel ball (14) so as to achieve the unlocking of the front layer (11); the end surface of the unlocking sleeve (18) can push the special-shaped lock block (13) to move, so as to achieve the unlocking of the front layer. According to the invention, a simple manner is adopted to achieve the locking and unlocking of the front layer of the socket.
Owner:上海开合电子有限公司

Waterproof case for camera and waterproof structure for camera using the waterproof case

The invention provides a waterproof structure for a camera capable of easily rotating a zoom ring of a lens barrel. In a waterproof case for the camera, a case body which accommodates a lens barrel includes a fixed cylindrical member detachably attached to a camera body, a rotating cylindrical member relatively rotatably connected to a front opening of the fixed cylindrical member, and a movable cylindrical member which is accommodated in the rotating cylindrical member and which can reciprocate. A first seal is provided on a bonding portion of the fixed cylindrical member and the camera body, a second seal is provided on a bonding portion of the fixed cylindrical member and the rotating cylindrical member, and a third seal is provided on a bonding portion between the rotating cylindrical member and the movable cylindrical member. An engaging surface which contacts with an outer surface of the zoom ring of the lens barrel is provided on an inner surface of the rotating cylindrical member. A cam mechanism is arranged between the rotating cylindrical member and the movable cylindrical member for converting rotation of the rotating cylindrical member into the reciprocation motion of the movable cylindrical member.
Owner:SANYO ELECTRIC CO LTD

Waterproof cable well

The invention discloses a waterproof cable well, which comprises a well body, wherein the low-lying area at the well bottom of the well body is provided with a sump; the top face of the well body is provided with a fan heater; the fan heater comprises a humidity sensor; the sump is internally provided with an ultrasonic atomization device; a mist collecting hood is arranged above the sump; a suction pipe and an exit pipe of the mist collecting hood are communicated; repellent paint is painted on the inner surface of the well body; the components and the weight parts of the repellent paint is as follows: 50-100 parts of polyether, 5-8 parts of epoxy resin, 5-15 parts of polytetrafluoroethylene, 5-15 parts of polyether ether ketone, 0.5-1.5 parts of plasticizer, 10-15 parts of polyurethane, 1-5 parts of simethicone, 5-10 parts of nanometer silicon dioxide and 30-50 parts of ethanol. The waterproof cable well has the advantages that the waterproof cable well is capable of draining water continuously and timely in a rainy humid environment, and the waterproof and dehumidification performances are realized.
Owner:NINGHAI COUNTY POWER EQUIP BUILD OR REPAIR FACTORY +1
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