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95results about How to "Guaranteed contact pressure" patented technology
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High-temperature-resistant floating welding type radio-frequency coaxial cable connector
InactiveCN104051885ASimple structureIngenious designCoupling contact membersTwo-part coupling devicesRadio frequencyElectrical conductor
The invention provides a high-temperature-resistant floating welding type radio-frequency coaxial cable connector. The high-temperature-resistant floating welding type radio-frequency coaxial cable connector comprises a shell, a ceramic insulator, an outer contact element, two inner contact elements, two springs, an inner conductor, a ceramic supporting piece and a welded tube, wherein the inner conductor, the ceramic insulator and the shell are sequentially nested in a close fit mode from inside to outside, the ceramic insulator is axially fixed by the outer contact element, the front end and the rear end of the inner conductor are respectively provided with one inward-concave insertion hole, and the two springs are arranged in the two inward-concave insertion holes respectively. The high-temperature-resistant floating welding type radio-frequency coaxial cable connector is simple in structure and ingenious in design, will not soften or deform at a high temperature due to the adoption of a high-temperature-resistant ceramic insulation material, and prevents the situations that a connection mechanism between a cable and a female connector becomes poorer in retentivity at a high temperature and normal signal transmission is affected.
Owner:XIAN SHIXIAN TECH
Flexible rose work method and cutter for ring body surface used by magnetic-control sputtering ring piece
InactiveCN101574766AQuality assuranceGuaranteed contact pressureTurning toolsSputteringReciprocating motion
The invention discloses a flexible rose work method and cutter for ring body surface used by magnetic-control sputtering ring pieces. A lathe is adopted as a machining tool, the ring piece performs circular motion, the cutter with an idler wheel performs axial rectilinear motion, the ring piece is surrounded to be circular with plate blanks, and a manufacturing cutter which is adopted is a flexible cutter the idler wheel of which can perform straight reciprocating motion along axial direction. The cutter comprises a tool holder (2), a cutter arbor (4) and an idler wheel (5), wherein, the idler wheel (5) is arranged on the outer end of the cutter arbor (4), and the tool holder (2) and the cutter arbor (4) are in elastic fixing.
Owner:NINGXIA ORIENT TANTALUM IND
Moving contact assembly of molded case circuit breaker
InactiveCN102103948AEasy to separateKeep in touchContactsCircuit-breaking switch contactsLinear motionCircuit breaker
A moving contact assembly of a molded case circuit breaker comprises a rotary shaft rod, a moving contact, a pair of connecting rods and a pair of springs, wherein the rotary shaft is provided with an opening and a pair of symmetrically arranged arc-shaped linear movement guide grooves; the moving contact is rotationally connected with the rotary shaft rod through a rotary shaft; the two ends of the moving contact lean out of the opening of the rotary shaft rod; the two ends are respectively provided with a moving contact; the pair of connecting rods are symmetrically arranged; one end of each connecting rod is connected with the two side surfaces of the moving contact while the other end is connected with a sliding pin, wherein the two ends of the sliding pin pass through the arc-shaped linear movement guide groove and span the two side surfaces of the rotary shaft rod; and the pair of springs are symmetrically arranged on the two side surfaces of the rotary shaft rod; the two ends of the pair of springs are respectively connected with the two sliding pins. Compared with the prior art, the moving contact assembly of a molded case circuit breaker provided by the present invention can rapidly finish circuit transformation with high efficiency.
Owner:SHANGHAI RENMIN ELECTRICAL APP WORKS
Electrical heating apparatus, method of manufacturing heat generator unit and pressing jig
InactiveCN101420798AImprove heating effectGuaranteed contact pressureAir-treating devicesAir heatersHeat sinkElectric heating
An electrical heating apparatus has: a fin brazed on at least one of a main body upper wall and a main body lower wall of a tube; an insertion unit having an electro-heat-generating element pressure-welded to a wall of one of the main body upper wall and the main body lower wall; and an edge part projected in the width direction from each of main body vertical walls to form an edge space. The edge space is formed so as to be continuous with the insertion space and is smaller in thickness dimension than the thickness dimension of the insertion unit.
Owner:CALSONIC KANSEI CORP
Movable contact assembly of circuit breaker for wiring
InactiveCN1750206AEasy to separatePrevent returnProtective switch operating/release mechanismsCircuit-breaking switch contactsSeparated stateCurrent limiting
Disclosed is a movable contactor assembly of a circuit breaker capable of enhancing a current limiting function by maintaining a contact state between a movable contactor and fixed contactors in a closed circuit state, by preventing the separated movable contactor from returning towards the fixed contactors at the time of a current limiting operation, by accelerating a separation operation of the movable contactor from the fixed contactors at the time of a current limiting operation, and by continuously maintaining a separated state of the movable contactor from the fixed contactors until a trip operation is performed by a trip mechanism.
Owner:LSIS CO LTD
Plug unit for main circuit connector
InactiveCN102386508AReduce frictionWon't hurtSecuring/insulating coupling contact membersCoupling contact membersElectrical and Electronics engineeringFriction force
The invention relates to the technical field of draw-out switch equipment, in particular to a plug unit for a main circuit connector, which comprises a fixed bracket, paired plug conducting strips, spring pieces and cylindrical pins; the paired plug conducting strips are inserted in the fixed bracket; the socket ends of the paired plug conducting strips are separated into socket openings; the cylindrical pins are fixed to the fixed bracket and are located between the paired plug conducting strips; the plug conducting strips are provided with arc grooves matched with the cylindrical pins, and the plug conducting strips arranged at the left and right sides take the cylindrical pins as deflection centers; the spring pieces are disposed among the outer side surfaces of the plug conducting strips and the fixed bracket; and a compact force is formed between the paired plug conducting strips. The plug unit for the main circuit connector has the advantages that: friction force of the connector opened by expansion is reduced by cooperation of the cylindrical pins and the plug conducting strips, so that the plug unit has high reliability and large contact pressure.
Owner:常州新苑星电器有限公司
DC breaker based on dual-coil monostable permanent magnet mechanism
ActiveCN108400056ASlow down the speed of the upward movementReduce bouncingHigh-tension/heavy-dress switchesAir-break switchesContact pressureDual coil
The invention relates to the technical field of the high-voltage device, and discloses a DC breaker based on a dual-coil monostable permanent magnet mechanism. The DC breaker comprises a vacuum arc-extinguishing chamber; a static contact and a movable contact are arranged in the vacuum arc-extinguishing chamber from top to bottom, the bottom surface of the movable contact is connected with a movable conducting rod; the movable conducting rod is connected with a dual-coil repulsion mechanism through a spring steering mechanism, the dual-coil repulsion mechanism is connected with a permanent magnet mechanism through a switch-off maintaining spring, and a switch-off buffer is arranged below the permanent magnet mechanism; the switch-off maintaining spring is used for providing the switch-offmaintaining force, the permanent magnet mechanism is used for providing a switch-on maintaining force, the spring steering mechanism is used for providing the switch-on assisting force in the switch-on, thereby increasing the contact pressure of the movable contact and the static contact; the dual-coil repulsion mechanism is used for providing the starting acting force of the switch-off and the starting acting force of the switch-on through the electromagnetic induction; and the switch-off buffer is used for absorbing excessive kinetic energy in the switch-off process. The DC breaker disclosedby the invention is simple and reliable, convenient for application, and has good in market promotional value.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +2
Backlight module lighting fixture
InactiveCN104391386AImprove the success rate of one-time lightingNo damageNon-linear opticsEngineeringTroffer
The invention relates to a backlight module lighting fixture. The backlight module lighting fixture comprises a soleplate (1), a product fixture (2) and a lighting pressure head part (3), wherein the product fixture is installed on the soleplate, the lighting pressure head part is installed on the product fixture, and the backlight module lighting fixture is characterized in that the lighting pressure head part (3) comprises a base (301), wherein the base (301) is symmetrically installed on a guide rail (302), two sides of a U-shaped pressure head (303) are installed on the guide rail (302) and can move up and down, the bottom of the U-shaped pressure head (303) is connected with an oblique surface push block (305), a slide block (306) is installed in a groove on the base (301), the oblique surface push block (305) moves downwards to push the slide block (306) to move towards a gold finger so as to enable the gold finger to be aligned; a lighting electrode (307) is installed on an electrode base (308); a lower magnetic block (310) is installed on the base (301), and an upper magnet (311) is installed on the lower bottom surface of the U-shaped pressure head (303). By adopting the backlight module lighting fixture, the one-time lighting success rate can be increased, and the one-time lighting success rate can reach more than 99 percent.
Owner:施杰
Socket type ground fault circuit interrupter
ActiveCN102891050AReduce contact resistanceHigh working reliabilitySwitch operated by earth fault currentsProtective switch operating/release mechanismsGrounding MalfunctionInterrupter
The invention relates to a socket type ground fault circuit interrupter, which comprises a reset key, a reset mechanism, a conductive component from a power input side to a load side, a leakage signal detection circuit, and an electromagnetic trip mechanism controlled by the leakage signal detection circuit to act, wherein the reset mechanism comprises a reset bracket and a bracket reset mechanism. A short-circuit conducting strip supported by an elastic piece is arranged on the reset bracket, and the contact pressure between a movable contact and a stationary contact is guaranteed, so that the contact resistance is low, and even if the stationary contact setting position is slightly deviated, the short-circuit conducting strip can be self-adjusted and self-adapted, and the operating reliability is improved. In addition, the socket type ground fault circuit interrupter is provided with a reverse wiring protection device comprising an electrically controlled normally closed reverse protection switch, a reset key locking mechanism and a control circuit, so that when the circuit is reversely connected, power is not output from the socket type ground fault circuit interrupter, the prompt and safety protection functions are realized, and the potential safety hazard is eliminated.
Owner:陈泽
Intelligent cardiovascular medicine clinical pulse detection device
InactiveCN110934574AFixed tightlyReduce adverse effectsCatheterDiagnostic recording/measuringPhysical medicine and rehabilitationPhysical therapy
The invention discloses an intelligent cardiovascular medicine clinical pulse detection device. The pulse detection device comprises a pulse detection device body and a detection probe connected withthe pulse detection device body, and also comprises a fixing mechanism used for fixing a wrist, and a positioning mechanism used for positioning the detection probe, the fixing mechanism comprises a base, a containing groove is formed in the top of the base, a support is fixedly connected to the top of the rear end of the base, and a first fixing groove is formed in the front face of the support.According to the device, the fixing mechanism is used for fixing the wrist of a user and preventing the wrist from moving during detection, and the pre-pressure of the fixing mechanism is adjustable,so that discomfort of the wrist due to overlarge pre-pressure of a second fixing plate is prevented; through the positioning mechanism, on one hand, the position of the detection probe can be adjusted, so that the probe is aligned, the pre-pressure of the probe is adjustable, the contact pressure between the probe and the wrist is ensured, and the detection accuracy is further improved.
Owner:YANTAI YUHUANGDING HOSPITAL
Folding table
InactiveCN101716029AEasy to operateAchieve separationFoldable tablesStowable tablesAxial displacementCoupling
A folding table has a table top; leg elements pivotably installed on at least two cross pillars of an installation element; and a lock device fastening leg elements on folding or unfolding end position, wherein each installation element has a coupling bush for rotatably supporting leg elements with an axial displacement; the lock device provides coupling tubes which are rotatably fixedly connected to the cross pillars, combined to the coupling bush through an loaded spring, detached through a displacement of the cross pillars along an axis X and combined to two ends positions with different pivotable connection.
Owner:KUSCH & CO SITZMOBELWERKE GMBH & CO KG
Socket for electric part
InactiveCN1881714AIncrease the areaExtended elasticElectric discharge tubesCoupling device detailsContact pressureEngineering
One electric socket is provided, which can ensure the contact pressure between the contact terminal and the electric part and has a casing suitable for automatic installation and capable of fixing the contact terminals reliably without interfering the insertion of the electric part. The electric socket comprising one casing with opening for the electric part with contacts to be inserted and several connecting terminals has one adsorbing plane in the bottom of the casing for automatic installation, and one holding part with one lower part around the adsorbing plane and one upper opening, with the adsorbing plane having one auxiliary adsorbing plane raised to the opening of the holding part. Each of the connecting terminals has one side wall fixing part on the casing, and the side wall of the casing has corresponding inserted part for the fixing part of the pressed connecting terminal to be exposed via the opening.
Owner:ALPS ALPINE CO LTD
Hydraulic device for adjusting ascending and descending proportions of snow-removing roll brush
ActiveCN103388601AImprove snow removal qualityImprove controllability and precisionServomotorsSnow cleaningElectro hydraulicOil pressure
The invention discloses a hydraulic device for adjusting the ascending and descending proportions of a snow-removing roll brush. The device comprises a metering pump, a combined electromagnetic overflow valve, a coarse oil filter, a fine oil filter with an oil stain display, three two-position three-way electro-hydraulic proportional valves, two balance valves, a two-position two-way floating valve, four oil cylinders, three oil pressure sensors, three oil cylinder position sensors and a set of PLC (Programmable Logical Controller) control system for electro-hydraulic control. According to the device, a roll brush elevating mechanism can be controlled to adjust the ascending and descending distances proportionally, effective contact between the roll brush and the ground as well as between support wheels and the ground is adjusted automatically according to the pressure of a roll brush motor, the snow-removing quality is improved, and adaptation to removing snow on road surfaces of different flatness is achieved.
Owner:CHINA MCC17 GRP
Moving contact unit and three-position switch with moving contact unit
ActiveCN104810186AGuaranteed contact pressureEasy assembly and debuggingAir-break switch detailsEngineeringMechanical engineering
Owner:PINGGAO GRP +1
Electrical connector for circuit boards and electrical connector assembly for circuit boards
ActiveCN107809018AAchieve low heightGuaranteed contact pressureCoupling contact membersContact pressureElectrical connector
The invention provides an electrical connector for circuit boards and an electrical connector assembly for circuit boards. Floating and low advancement can be achieved. The connector has multiple connection elements arranged on a circuit board and supports which support the connection elements. The connection elements have terminals connected to counterpart terminals in a counterpart connector, aswell as stationary retainers and movable retainers that secure the terminals in place. The terminals have connecting portions at one end of the terminals, and contact portions at the other end, and the contact portions are secured in place on one side of the movable retainers. Flexible portions are formed between the movable retainers and the stationary retainers. The movable retainers are provided with biasing members on the other side opposite to the side on which the contact portions are positioned. A force application part applies force to push other adjacent connectors when being connected with a target connector, so by use of the counter-acting force, the contact part is in contact with a target terminal of the target connector with the contact pressure.
Owner:HIROSE ELECTRIC GROUP
Load adjustable surface acoustic wave actuator
InactiveCN1592072AGuaranteed contact pressureGuaranteed driving abilityPiezoelectric/electrostriction/magnetostriction machinesSurface waveEngineering
A loading adjustable surface sound wave actuating device includes: a positioning platform with a sliding bearing at each of the opposite sides, a surface sound wave actuating device set on the platform between the two sliding bearings which can generate a preset surface sound wave on its top surface, a slide block on the platform having a force part contacting with the top surface of the actuator and two positioning parts set in the sliding bearings in which the sound wave of the actuator drives the block to shift, a supporting structure applying a preset force to the positioning part of the block, thus the contact pressure between the block and the actuator is kept at a constant value.
Owner:IND TECH RES INST
Power supply terminal and charging gun head
ActiveCN108539458ASmall insertion forceReduce labor intensityCoupling contact membersContact pressureEngineering
The present invention discloses a power supply terminal and a charging gun head. The power supply terminal comprises a hollow arranged terminal expand tube, a terminal core rod axially mounted in theterminal expand tube, an insulation head fixedly installed at the end portion of the terminal core rod and an elastic piece fixed between the terminal core rod and the terminal expand tube. The powersupply terminal comprises a first state when the elastic piece is compressed and a second state when the elastic is in normal state, and the length of the terminal core rod stretching into the terminal expand tube in the first state is larger than the length of the terminal core rod stretching into the terminal expand tube in the second state. The power supply terminal is arranged to reduce the plugging force of the charging gun head and relieve the labor intensity when plugging is performed; the terminal expand tube can reduce the friction prior to expansion of the terminal expand tube; and the terminal expand tube can ensure the contact pressure after the expansion of the terminal expand tube so as to ensure the heavy current conduction current effect.
Owner:奕充机器人(苏州)有限公司
Motor with transmission function
InactiveCN102308459AGood energy powerCompact structureToothed gearingsMotor depositionStator coilControl theory
Owner:TOYOTA JIDOSHA KK
Vacuum circuit breaker solid-sealed polar pole
ActiveCN104319162AEasy to replaceImprove insulation performanceHigh-tension/heavy-dress switchesAir-break switchesContact pressureSilica gel
The invention discloses a vacuum circuit breaker solid-sealed polar pole which structurally comprises a bolt 1, silicone rubber 4, a lower leading-out terminal 5, an upper leading-out terminal 7, a vacuum arc extinguish chamber 8, an insert 11, a fixing flange 12 and an insulating body 13. The vacuum circuit breaker solid-sealed polar pole has the advantages that the vacuum arc extinguish chamber is convenient to replace, and the defect that the whole solid-sealed polar pole is scrapped when the solid-sealed polar has a problem; the upper leading-out terminal and the vacuum arc extinguish chamber are in contact and connected in a tooth-shaped meshed and contact mode, the vacuum arc distinguish chamber is fixed to the insert of the insulating body by the bolt through the fixing flange, the contact pressure of the upper leading-out terminal and the conduction contact face of the vacuum arc extinguish chamber is ensured, the conduction contact area and the current carrying capacity of a conduction circuit are improved, and the resistance of the conduction circuit is reduced; a vacuum layer is arranged between the insulating body and the vacuum arc extinguish chamber, it is ensured that the external insulation of the vacuum arc extinguish chamber is not affected by the external environment, the insulation performance of the solid-sealed polar pole is improved, and compared with the technology that the whole vacuum arc extinguish chamber is wrapped by silicon, more production cost is lowered.
Owner:HENAN SENYUAN ELECTRIC CO LTD
Circuit breaker operating mechanism and circuit breaker
PendingCN109950103AImplement mate rotationReduce manufacturing costProtective switch operating/release mechanismsEngineeringCircuit breaker
The invention provides a circuit breaker operating mechanism and a circuit breaker. The circuit breaker operating mechanism comprises a moving contact, a bias member which abuts against the moving contact, a driving assembly connected with the moving contact and used for driving the moving contact to overcome the bias force of the bias member and move from a switching-off position to a switching-on position; and a lock catch rotatably arranged on a shell, connected with the driving assembly, and provided with a first action position and a second action position. At the first action position, the lock catch is driven by the driving assembly to act. At the second action position, the lock catch is driven by a safety actuating assembly to push the driving assembly to move, so that the drivingassembly is separated from the moving contact. Due to the fact that the driving assembly directly applies a force to the moving contact, a contact support is omitted. The lock catch is driven by thedriving assembly to rotate, so that a lock catch spring is omitted. Therefore, compared with the prior art, the number of force application parts is reduced, and the production cost is reduced. The assembling operation is faster and more convenient.
Owner:乐清市赛翔电气有限公司
Novel double-column vertical open type outdoor high-voltage AC disconnecting switch
InactiveCN109559930ASimple structureEasy to useAir-break switch detailsElectrical conductorForeign object
The present invention discloses a novel double-column vertical open type outdoor high-voltage AC disconnecting switch. The switch comprises a bottom frame, a first pillar insulator, a second pillar insulator, a conductive loop, a static side contact socket, and a movable side contact socket. The conductive loop comprises a conductive blade, and the conductive blade is provided with a self-lockingdevice; a latching device is arranged above the second pillar insulator and on one side of the static side contact socket away from the movable side contact socket, and the side surface of the latching device is provided with a concave latching groove; the position of the concave latching groove is engaged with a hook body; the hook body is internally provided with a stainless steel leaf spring; the conductive loop adopts a fully enclosed structure; all conductors of the conductive loop are enclosed inside the insulating material; and a static contact, a static side wiring board and a movableside wiring board are installed in the insulator. According to the technical scheme of the present invention, the stainless steel leaf spring is arranged in the hook body, so that influence on the rotation sensitivity of the hook body caused by the exposure of the stainless steel leaf spring to the wind and rain can be avoided; and by using the fully enclosed structure of the conductive loop, short circuits caused by birds and foreign objects can be avoided.
Owner:池州江南电力设备有限公司
Movable contact assembly of circuit breaker for wiring
InactiveCN100409391CEasy to separatePrevent returnProtective switch operating/release mechanismsCircuit-breaking switch contactsSeparated stateCurrent limiting
Owner:LSIS CO LTD
Copper alloy for electrical and electronic equipment, copper alloy thin sheet for electrical and electronic equipment, and conductive part and terminal for electrical and electronic equipment
ActiveCN104903478AExcellent bending workabilityExcellent stress relaxation resistanceHot-dipping/immersion processesSingle bars/rods/wires/strips conductorsYield ratioZinc
The present invention pertains to a copper alloy for electrical and electronic equipment, a copper alloy thin sheet for electrical and electronic equipment, and a conductive part and terminal for electrical and electronic equipment. The copper alloy for electrical and electronic equipment contains more than 2.0 mass% to 15.0 mass% of zinc, 0.10 mass% to 0.90 mass% of tin, 0.05 mass% to less than 1.00 mass% of nickel, 0.001 mass% to less than 0.100 mass% of iron, and 0.005 mass% to 0.100 mass% of phosphorus, with the remainder comprising copper and unavoidable impurities. The copper alloy satisfies 0.002 ≤ Fe / Ni < 1.500, 3.0 < (Ni + Fe) / P < 100.0, and 0.10 < Sn / (Ni + Fe) < 5.00 in terms of atomic ratios. The yield ratio (YS / TS), which is calculated from the tensile strength (TS) and 0.2% offset yield strength (YS) when a tension test is performed in a direction parallel to the rolling direction, is over 90%.
Owner:MITSUBISHI MATERIALS CORP +1
Pig house cleaning robot
ActiveCN113439667AImprove environmental applicabilityEasy to cleanMeasurement devicesAnimal housingControl systemProcess engineering
The invention provides a pig house cleaning robot. The robot comprises a robot body, a walking mechanism, an executing mechanism, a navigation system and a control system, the walking mechanism comprises four omnidirectional wheels evenly distributed in the circumferential direction of the bottom face of the robot body, every two adjacent omnidirectional wheels are arranged in a splayed shape, and each omnidirectional wheel is powered by a driving assembly; the navigation system comprises a plurality of sensors fixedly arranged on the robot body, the sensors are in communication connection with the control system, and the walking mechanism and the executing mechanism are controlled to act through the control system. In order to enhance the applicability of an existing pig house cleaning robot to pig houses in an excrement leakage floor environment, improve the cleaning efficiency and increase the function of detecting the body temperature of pigs in the excrement removing working process, the pig house cleaning robot is provided. The pig house cleaning robot is convenient to use, thorough in cleaning, energy-saving and environment-friendly, a full-automatic pig house cleaning mode can be achieved, the working efficiency is improved to a great extent, and the environmental conditions of the pig house are improved.
Owner:哈尔滨天河自动化设备有限公司
Electric vehicle
ActiveCN105960348AContact stabilityGuaranteed contact pressureRail devicesBatteries circuit arrangementsElectricityEngineering
Provided is an electric vehicle allowing a power receiving portion and an aerial wire to make a stable contact with each other even when the angle formed by a charging head and the aerial wire varies due to the variation of the distance between the electric vehicle and the aerial wire. The electric vehicle (10) charges an electricity storage device (16) by allowing the power receiving portions (40p, 40n) of a charging arm (22) to make contact with an aerial wire (20). In the electric vehicle (10), the charging arm (22) is equipped with an arm portion (86) that is expanded from a side portion (10s) of the electric vehicle (10) toward the outside of the vehicle width by rotationally moving about a rotationally moving shaft (84). The power receiving portions (40p, 40n) are provided on a charging head (26) positioned at the top of the arm portion (86). The charging head (26) is set so as to face the aerial wire (20) in such a direction that the longitudinal direction of the charging head (26) becomes orthogonal to the aerial wire (20) when the arm portion (86) is expanded to a predetermined rotational movement angle (theta3). The arm portion (86) is expanded up to a first rotational movement angle (theta1) larger than the predetermined rotational movement angle (theta3).
Owner:HONDA MOTOR CO LTD
Sink roll with sealing device
The invention provides a sink roll with a sealing device. The invention adopts a novel sealing structure in the sink roll in order to overcome problems in the prior art that the sink roll has big sealing damping, serious abrasion, frequent replacement, poor sealing effect and serious bath solution reveal; the sink roll is characterized in that a sealing structure arranged on a main shaft fixes thesink roll on a trough body and comprises an elastic element, a flange plate 8, a pressure pad 9, a cushion block 1, a stationary seal ring 11, a rotating seal ring 12, a rotating seal ring rubber support 13 and a hose clamp 14; the flange plate 8 presses the elastic element on the trough body; the stationary seal ring 11 is arranged at the back part of the elastic element and contacted with the rotating seal ring 12; the rotating seal ring 12 is regulated and sheathed on a spindle head by the rotating seal ring rubber support 13; and a butterfly nut causes a cushion block 10 to be connected with the flange plate 8 by the pressure pad 9. The sink roll with the structure has small sealing damping, flexible rotation, small abrasion, good sealing effect, effectively prevents the reveal, increases the production efficiency and reduces the manufacturing cost.
Owner:BEIJING STAR RIVER INTEGRATED EQUIP TECH
Fast and efficient plastic welding device
The invention discloses a fast and efficient plastic welding device, relates to the technical field of plastic welding equipment, and mainly solves the problem that a welding part is rugged due to theuse of an existing device. The fast and efficient plastic welding device comprises a base plate, a fixture and workpieces, wherein a door-shaped frame is welded and fixed to the upper surface of thebase plate; bidirectional screw rods are rotatably arranged on two sides of the door-shaped frame through bearings; an upper installation plate and a lower installation plate are arranged on screw-thread sections at the upper ends and the lower ends of the two bidirectional screw rods; electric push rods are arranged on two sides of the upper surface of the lower installation plate; annular installation shells are arranged at the end parts of telescopic rods of the two electric push rods; and a floating device and a scraping device are arranged on the inner wall of an installation ring. According to the fast and efficient plastic welding device provided by the invention, a first motor, the bidirectional screw rods, the upper installation plate and the lower installation plate are arranged,so that the two workpieces can tightly contact, and a welding effect is ensured; the annular installation shells, the installation ring, a second motor, a gear, an outer gear ring, the floating device and the scraping device are arranged, so that plastics at the welding part of the two workpieces can be floated, burrs can be scraped, and the smoothness of a welding groove is ensured.
Owner:QINGDAO YIDIAN PLASTIC WELDING EQUIP
Copper alloy for electrical and electronic equipment, copper alloy thin sheet for electrical and electronic equipment, and conductive part and terminal for electrical and electronic equipment
ActiveCN104822854AReliable and sufficiently excellent stress relaxation resistanceHigh strengthSingle bars/rods/wires/strips conductorsConductive materialOxygenImpurity
The present invention pertains to a copper alloy for electrical and electronic equipment, a copper alloy thin sheet for electrical and electronic equipment, and a conductive part and terminal for electrical and electronic equipment. The copper alloy for electrical and electronic equipment contains more than 2.0 mass% but less than 23.0 mass% of zinc, 0.10 mass% to 0.90 mass% of tin, 0.05 mass% to less than 1.00 mass% of nickel, 0.001 mass% to less than 0.100 mass% of iron, and 0.005 mass% to 0.100 mass% of phosphorus, with the remainder comprising copper and unavoidable impurities. The copper alloy satisfies 0.002 ≤ Fe / Ni < 1.500, 3.0 < (Ni + Fe) / P < 100.0, and 0.10 < Sn / (Ni + Fe) < 5.00 in terms of atomic ratios. The content of hydrogen is not more than 10 mass ppm, the content of oxygen is not more than 100 mass ppm, the content of sulfur is not more than 50 mass ppm, and the content of carbon is not more than 10 mass ppm.
Owner:MITSUBISHI MATERIALS CORP +1
Vacuum arc-extinguishing chamber with composite contact structure
ActiveCN112735901AReduce movement distanceReduce overtravelHigh-tension/heavy-dress switchesAir-break switchesEngineeringLow vacuum
The invention relates to a vacuum arc-extinguishing chamber with a composite contact structure. The vacuum arc-extinguishing chamber comprises: a static contact structure which comprises a static main contact, a static arc contact and a static end corrugated pipe, wherein the static arc contact is movably assembled in the static main contact, and the static end corrugated pipe applies an elastic reset acting force to the static arc contact; and a moving contact structure which comprises a moving main contact, a moving arc contact and a moving end corrugated pipe. The moving arc contact is movably assembled in the moving main contact; and the moving end corrugated pipe applies an elastic reset acting force to the moving arc contact to force the moving arc contact to move towards the static arc contact. The static end corrugated pipe and the moving end corrugated pipe are utilized to enable the static arc contact and the moving arc contact to move relative to the corresponding main contacts, and the protruding amount of the two arc contacts relative to the main contacts is offset by the two arc contacts, so compared with a scheme for offsetting only depending on the movement of the static arc contact, the scheme using the two arc contacts to act can effectively reduce the moving distance of the static arc contact, reduce the overtravel condition of the vacuum arc-extinguishing chamber and lower the requirement for the installation place of the vacuum arc-extinguishing chamber.
Owner:PINGGAO GRP +2
Vacuum arc-extinguishing chamber
ActiveCN112614737AImprove flow capacityImprove fluidityHigh-tension/heavy-dress switchesAir-break switchesMechanical engineeringArc extinction
The invention relates to a vacuum arc-extinguishing chamber. The vacuum arc-extinguishing chamber comprises a static contact structure which comprises a static main contact and a static arc contact, the static main contact and the static arc contact are in conductive connection, the static arc contact is movably assembled in the static main contact, a moving contact structure comprises a moving main contact and a moving arc contact which are conductively connected, and the moving main contact and the static main contact are used for normal through-current, and the moving arc contact and the static arc contact are used for arc extinguishing. One main contact of the static main contact and the moving main contact is provided with a conical outer peripheral surface, the other main contact is provided with a conical concave part, the conical concave part is provided with a conical inner peripheral surface, and the conical inner peripheral surface is used for being matched with the conical outer peripheral surface in an inserted mode during closing so as to achieve normal through-current. In the vacuum arc-extinguishing chamber, the main contact and the arc contact are completely separated in the opening and closing process, the through-current capability of the vacuum arc-extinguishing chamber is effectively improved, and the through-current area can be effectively increased and the through-current capability can be improved by utilizing conical fit insertion between the movable main contact and the static main contact.
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