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66results about How to "Guarantee working reliability" patented technology

Air valve control method for air-conditioning type range hood

A method for controlling an air valve of an air-conditioning type range hood, wherein a casing of the air-conditioning type range hood is provided with a smoke exhaust passage and an air outlet passage isolated from each other, the smoke exhaust passage comprising a first smoke exhaust passage and a second smoke exhaust passage, an air valve for switching the air passages between the first and second smoke exhaust passages is installed at the air outlet of the range hood fan, a first heat exchanger is installed in the first smoke exhaust passage, and a second heat exchanger is installed in the air outlet passage. During use by a user, the method for controlling the air valve of the air-conditioning type range hood diagnoses the working state of the air valve, and dynamically adjusts the control logic of the air valve according to the user's behavior habits, thereby avoiding the possibility that the air valve is adhered to the flue by oil stains due to long-term non-use of the air-conditioning mode, ensuring the working reliability of the air valve, and improving the reliability of the operation of the range hood. At the same time, in the air-conditioning cooling mode, the air valve is opened smoothly, so that the oil smoke airflow can flow through the condenser in the smoke exhaust passage to dissipate the heat of the condenser, thereby improving the energy efficiency of the air conditioner.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD

Heat exchange assembly of air conditioner electric appliance box and air conditioner

The utility model relates to a heat exchange assembly of an air conditioner electric appliance box and an air conditioner, the air conditioner electric appliance box is arranged on a middle partition plate, components are arranged in the air conditioner electric appliance box, the heat exchange assembly comprises a plurality of base plates, the base plates are arranged on the middle partition plate side by side, the base plates and the components are located on the same side, each base plate is provided with a refrigerant pipeline, and the temperatures of the base plates are different; the first heat pipe and the second heat pipe are connected, the first heat pipe can move to any substrate, and one end, far away from the first heat pipe, of the second heat pipe is rotatably connected with the component; the temperature detection module is used for detecting the temperature of the component; when the temperature of the component does not reach the target temperature, the first heat pipe moves to the base plate matched with the target temperature, so that the temperature of the component reaches the target temperature after heat exchange of the second heat pipe, the component operates reliably, meanwhile, the base plate with the small temperature difference with the component is selected, the influence on the power of the air conditioner is reduced, and energy is saved.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Power transformer convenient for heat dissipation

The power transformer comprises a transformer body and a heat insulation plate arranged at the bottom of the transformer body, the transformer body comprises a base, a winding and an iron core, the two sides of the surface of the bottom end of the base are each provided with a plurality of terminal pins, the roots of the terminal pins are each provided with an abutting block, and the abutting blocks are connected with the winding and the iron core. A plurality of through holes are formed in the two sides of the surface of the top end of the heat insulation plate, the terminal pins are inserted into the through holes, the abutting block abuts against the surface of the top end of the heat insulation plate, a plurality of flow guide plates are arranged in the middle of the surface of the top end of the heat insulation plate, and ventilation grooves are formed between every two adjacent flow guide plates and the heat insulation plate. Strip-shaped grooves are formed in the flow guide plates, water absorption fiber cotton blocks are arranged in the strip-shaped grooves, and positioning plates are arranged at the four corners of the top end of the heat insulation plate. The heat dissipation effect of the power transformer is improved, meanwhile, the dehumidification function is achieved, the working reliability of the power transformer is guaranteed, and the service life of the power transformer is prolonged.
Owner:YUEQING ZHONGBO ELECTRIC APPLIANCE CO LTD

Speed regulation sensor of electric vehicle

The utility model relates to the technical field of speed regulation sensors, in particular to a speed regulation sensor of an electric vehicle, which comprises a plastic shell, a plastic body, a shaft core rotatably arranged in the plastic shell, a torsion spring movably sleeved on the periphery of the shaft core and an electric brush assembly arranged at one end of the shaft core. The plastic body is arranged at one end of the plastic shell, a resistor disc assembly is arranged on the side, close to the electric brush assembly, of the plastic body and comprises two symmetrically-arranged resistor disc bodies, the electric brush assembly comprises two symmetrically-arranged electric brush bodies, and the electric brush bodies and the resistor disc bodies are matched in a one-to-one correspondence mode and abut against each other in a sliding mode. And each resistor disc body is connected with a terminal assembly. The device is novel in structure and ingenious in design, working reliability and stability of the device are guaranteed, the service life is prolonged, and replacement and maintenance cost is reduced.
Owner:DONG GUAN CHANG TAI ER ELECTRONIC CO LTD

RGB atmosphere lamp finished product calibration method and system

The invention relates to the field of electronic engineering, and discloses an RGB atmosphere lamp finished product calibration method, which comprises the following steps: constructing an AOI defect detection algorithm of an LED chip corresponding to a finished product RGB atmosphere lamp, identifying chip defects of the LED chip by using the AOI defect detection algorithm, and carrying out first calibration on the LED chip corresponding to the finished product RGB atmosphere lamp to obtain a first calibrated finished product RGB atmosphere lamp; configuring a sensing cooperation module of the first calibration finished product RGB atmosphere lamp, preprocessing output data by using the trained optical model to obtain model processing data, and calculating a deviation coefficient of the first calibration finished product RGB atmosphere lamp; and constructing an intelligent calibration algorithm of the first calibration finished product RGB atmosphere lamp, analyzing a deviation compensation parameter of the first calibration finished product RGB atmosphere lamp by using the intelligent calibration algorithm, and executing second calibration of the first calibration finished product RGB atmosphere lamp in combination with the deviation compensation parameter to obtain a target finished product RGB atmosphere lamp. According to the invention, the generation quality of the finished RGB atmosphere lamp can be improved.
Owner:SHENZHEN SHENGKEYUAN AUTOMOBILE TECH CO LTD

Electromagnet

The utility model discloses an electromagnet which comprises a support body and a cover plate fixedly arranged on one side of the support body. An execution assembly is arranged in the support body, the bottom and the top of the support body are both provided with anti-seismic colloid, the bottom is further provided with a PIN terminal, the PIN terminal is electrically connected with the execution assembly, and the connecting position of the PIN terminal and the execution assembly is wrapped by an insulation connecting bridge. The execution assembly comprises a winding supporting piece, a limiting shaft sleeve, an iron core, a permanent magnet and a coil. The two ends of the limiting shaft sleeve are provided with limiting holes, and sliding limiting of the iron core is achieved through a guide block and a positioning base. The anti-seismic performance, the integration level and the installation convenience of the electromagnet can be improved, meanwhile, the leakproofness and the insulativity of the welding part are ensured, and the electromagnet is suitable for an automobile ABS system.
Owner:东莞市斯凡电子科技有限公司

Composite sealing structure of underground gas storage cavern

The invention relates to the technical field of underground gas storage, and discloses a composite sealing structure of an underground gas storage cavern, which comprises a lining covering the wall of the underground gas storage cavern, a drainage system is arranged on one side, close to the wall of the underground gas storage cavern, of the lining, and a buffer layer and an airtight plate sequentially cover the other side of the lining; the drainage system comprises drainage pipes, water inlet holes and flow guide pipes, the drainage pipes are arranged in the lining in the horizontal direction and arranged in the circumferential direction of the underground gas storage cavern at intervals, the water inlet holes are formed in the drainage pipes and used for communicating the interiors of the drainage pipes with the wall of the underground gas storage cavern, and the adjacent drainage pipes are communicated through the flow guide pipes. By arranging the drainage system, water in the rock mass of the underground gas storage cavern enters from the water inlet groove, penetrates through the water inlet hole and enters the drainage pipe, seepage water and gravel mixtures are drained away through the drainage pipe and drained away through the drainage pipe below and the bottom drainage pipe, and the influence of accumulated water on the underground gas storage cavern can be effectively avoided.
Owner:POWERCHINA ZHONGNAN ENG

A laptop computer

The present invention provides a laptop computer, comprising a screen assembly and a host assembly, wherein the screen assembly is rotatably connected to the host assembly via a screen shaft; further comprising a bottom support, wherein the bottom support is arranged at the bottom of the host assembly; the bottom support is provided with a connecting mechanism at one end close to the screen shaft, wherein one end of the connecting mechanism is connected to the bottom support, and the other end of the connecting mechanism is connected to the screen assembly; under the action of an external force, when the screen assembly switches from a closed state to an open state, the screen assembly drives the connecting mechanism to move, so that the bottom support moves from close to the bottom of the host assembly to a direction away from the bottom of the host assembly. The laptop computer overcomes the defects in the prior art that a laptop base needs to be carried to increase ventilation of the laptop computer, and the laptop base needs to be adjusted and set separately.
Owner:ZIGUANG COMPUTER TECH CO LTD

Battery thermal runaway multi-stage early warning device and control method thereof

PendingCN122512043AExcellent comprehensive monitoring performanceReal-time monitoring of bulge deformation
A battery thermal runaway multi-stage early warning device and its control method belong to the technical field of lithium ion power battery safety monitoring. In the device, the capacitor displacement sensor adopts a parallel plate capacitor structure to monitor the deformation of the battery cell; the three-layer step temperature sensor is composed of three layers of temperature changing materials arranged in concentric circles, independently outputs step signals of three temperature nodes of 85 DEG C, 135 DEG C and 200 DEG C, and realizes the internal temperature monitoring of the battery; the pressure sensor of the pressure relief valve film monitors the pressure change at the battery pressure relief valve. After the signals of various sensors are collected and processed, they are input into the logic judgment unit, combined with the multi-signal composite judgment to output the three-stage early warning signal, and then driven by the isolation driving unit to drive the corresponding LED indication. The valve adopts triple sensing fusion and pure hardware logic hierarchical judgment, realizes accurate early warning of early, middle and late thermal runaway, has fast response speed, high reliability, compact structure and is suitable for various batteries, and can effectively improve the safety of battery use.
Owner:DONGFANG GREEN ENERGY (HEBEI) CO LTD +1

A heat exchanger with a thermal displacement compensation support mechanism

The present invention relates to a heat exchanger with a thermal displacement compensation support mechanism, which can also be used in a steam generator and belongs to the technical field of heat exchangers. It includes a shell, an internal heat exchange unit and a plurality of thermal displacement compensation support mechanisms, wherein the plurality of thermal displacement compensation support mechanisms are evenly distributed in the shell along the circumference, and the thermal displacement compensation support mechanism is composed of a follower support, a guide rod, a disc spring assembly, an outer cylinder, a main support seat and a spring-shaped pipe. In the present invention, an elastic disc spring support structure is adopted, which can be adjusted according to the thermal displacement caused by the temperature difference or the inconsistency of the linear expansion coefficient of the material between the two connected rigid bodies, so as to avoid the thermal stress at the connection between the rigid bodies being unable to be released due to the rigidity limitation of the support, thereby causing damage to the equipment. The thermal displacement compensation support mechanism in the present invention is arranged in a lower temperature zone, which avoids the excessive selection of high-temperature materials, increases the range of material selection, reduces the material cost, and ensures the working reliability of the thermal displacement compensation support mechanism.
Owner:CHINERGY CO LTD

Seamless steel tube perforating machine and suspension type guide sleeve device thereof

PendingCN121869881ALimit movement up and downCompensate for dimensional changesGuiding/positioning/aligning arrangementsMetal rolling arrangementsMachineIndustrial engineering
The invention discloses a seamless steel tube perforating machine and a suspension type guide sleeve device thereof, and belongs to the technical field of seamless steel tube perforating machines. The suspension type guide sleeve device comprises two suspension frames which are fixed to the inner side of the rack and are symmetrical to each other, a bracket connected between the two suspension frames through a fastener, a guide sleeve assembly arranged above the middle of the bracket, and a pressing assembly arranged below the middle of the bracket. By arranging the pressing assembly, up-down movement of the guide sleeve assembly in the operation process can be effectively limited, the stability of the guide sleeve assembly in the working process is guaranteed, and pipe blank guide deviation caused by up-down displacement of the guide sleeve is avoided; precise fine adjustment of the guide sleeve assembly in the radial direction is achieved, the size change caused by abrasion of the guide sleeve due to long-term use can be effectively compensated, it is guaranteed that the center of the guide sleeve coincides with the hole shape center of a puncher all the time, and therefore production accidents such as pipe blank rolling clamping and uneven wall thickness of a hollow billet are avoided.
Owner:TAIYUAN HEAVY IND

Isolation belt opening device

The utility model discloses an isolation belt opening device which comprises a cutting mechanism, a dozer blade, an operation room, a caterpillar band chassis and a power and auxiliary system, the operation room and the power and auxiliary system are arranged on the caterpillar band chassis, and the cutting mechanism is connected to the front end of the caterpillar band chassis. The cutting mechanism comprises a left cutting saw, rotating mechanisms, a frame body, a right cutting saw, a crank arm and a crank arm oil cylinder, the frame body is hinged to the crawler chassis through the crank arm, the rotating mechanisms are arranged on the two sides in the frame body respectively, the output end of the rotating mechanism located on one side of the frame body is connected with the left cutting saw, and the output end of the rotating mechanism located on the other side of the frame body is connected with the right cutting saw; one end of the crank arm cylinder is connected with the crawler chassis, and the other end is connected with the crank arm.
Owner:XCMG FIRE FIGHTING SAFETY EQUIP CO LTD

Dust collection floor brush

The utility model provides a dust collection floor brush which comprises a floor brush seat with a dust collection cavity, a rotary brush body arranged in the dust collection cavity and provided with a rotary brush body cavity, an end cover plate arranged at one end of the rotary brush body, a bearing cover plate matched with the end cover plate and a driving assembly used for driving the rotary brush body to rotate. The bearing cover plate comprises a bearing cover concave part, a bearing cover center hole located in the center of the bearing cover concave part, a bearing cover flange arranged around one end of the bearing cover center hole, a bearing chamber communicated with the bearing cover center hole and located in the bearing cover flange, and a bearing cover sleeve arranged around the other end of the bearing cover center hole. The bearing cover outer wall is located on the outer side of the bearing cover concave part, and the concave part edge is located on the outer side of the bearing cover concave part. The dust collection floor brush has the advantages that due to the fact that different radial gaps exist between the rotating brush body and the bearing cover plate, hair moves in the direction away from the end cover, hair winding is avoided, reliable rotation of the rotating brush body is guaranteed, and the working reliability of the dust collection floor brush is guaranteed.
Owner:SUZHOU TENGPU ELECTRICAL TECH CO LTD

A water pump system of a pet water fountain and a pet water fountain

PendingCN122589717AGuarantee working reliabilityMake sure to install
This invention belongs to the field of pet product technology and discloses a water pump system and a pet water fountain. The water pump system includes a motor module, an impeller module, and a pump core module. The motor module includes a stator assembly, a control board, and a motor mounting bracket. The stator assembly is inserted into the water fountain's container, and the motor mounting bracket is inserted into the bottom shell of the water fountain. The impeller module includes an impeller housing, multiple rotor magnets, and a support shaft. The support shaft passes through the impeller housing and is inserted into the container. One end of the pump core module has a water inlet chamber, which is open and sealed to a protrusion on the container. The other end has a water outlet pipe, which is inserted into the water supply pipe of the water fountain. The water inlet chamber has a filter hole that communicates with the water chamber on the container. This water pump system has a simple structure, and installation and disassembly do not require auxiliary tools, facilitating deep cleaning of the pump system components and thus ensuring the cleanliness of the pet water fountain.
Owner:FUFEI ZHIZAO TECH (DONGGUAN) CO LTD

Caliper self-diagnosis long-life sensing coating material and coating method thereof

PendingCN121991557AAchieve energy self-sufficiencyRealize multifunctional integrated monitoringPretreated surfacesUsing electrical meansFiberGrating
The invention relates to the field of power system supply and demand interaction, and discloses a caliper self-diagnosis long-life sensing coating material and a coating method thereof.The material comprises an energy conversion layer, and the energy conversion layer is prepared from, by mass, polyvinylidene fluoride, silicon carbide and barium titanate; the protective layer is prepared from the following raw materials in parts by mass: polyvinylidene fluoride and self-lubricating microcapsules, and the coating method comprises the following steps: S1, pretreatment and slurry preparation; s2, coating and sensor network construction; and S3, heating curing is conducted, and coating operation of the coating is completed. Through the energy conversion layer formed by polyvinylidene fluoride, barium titanate and the like, mechanical vibration energy in the braking process can be converted into electric energy, electric energy supply is provided for a built-in sensing network, energy self-sufficiency of the system is achieved, an external power source and wiring are not needed, and the system is simple in structure and convenient to use. Meanwhile, the integrated Bragg grating optical fiber and the conductive silver paste network can synchronously monitor two state parameters of strain and abrasion.
Owner:ANHUI BOXING MASCH CO LTD

Hoverable translation door and experimental apparatus

ActiveCN224621327UHover implementationchange position
This utility model relates to laboratory equipment and discloses a hoverable sliding door, including a door body, a support mechanism, and a constant force spring. A guide wheel is rotatably mounted on the support mechanism, and the door body is slidably connected to the support mechanism. One end of the elastic band of the constant force spring is fixed to the spring's shaft, and the other end is connected to a steel wire rope, which passes around the guide wheel and is connected to the door body. The elastic force of the spring's elastic band is equal to the weight of the door body, thus enabling the door body to hover. Applying an external force to the door body causes it to slide, changing the relative position between the door body and the support mechanism. When the position of the door body needs to be changed, the operator applies an external force to the door body to change its position; after removing the external force, the door body remains in the new position. This utility model also provides an experimental device including the aforementioned hoverable sliding door.
Owner:NANODIGMBIO (NANJING) BIOTECHNOLOGY CO LTD

A U-shaped shell and tube type high efficiency fuel and lubricating oil radiator

The present invention discloses a U-shaped shell and tube type high-efficiency fuel and lubricating oil radiator, including an inserted head, a tube sheet, a tube bundle and a sheet metal integral spiral baffle. A cross-shaped partition is arranged on one end face of the inserted head, a cross-shaped slot is arranged on one end face of the tube sheet, and the tube sheet is plugged and matched with the cross-shaped partition of the inserted head through the cross-shaped slot and welded to form four partitions, each partition corresponds to a baffle chamber of a tube pass, the tube bundle is a U-shaped tube, and the U-shaped tube has a plum blossom groove pressed inside or a spoiler groove processed on the surface, the two ends of the tube bundle are respectively plugged into the tube sheet, and the two ends of the tube bundle are respectively located in different partitions; the spiral baffle is a sheet metal integrally formed structure and forms a shell pass with the shell assembly, the sheet metal integral spiral baffle has an inclination angle and a turning angle with the tube bundle flow direction, and the tube bundle is plugged with the spiral baffle. The fuel and lubricating oil radiator of the present invention meets the design requirements of light weight, compact structure, not easy to deform under high temperature difference of fuel oil, high heat transfer efficiency and good reliability.
Owner:GUIZHOU YONGHONG AVIATION MACHINERY

Deformation extrusion forming complete equipment for light metal

The invention discloses light metal deformation extrusion forming complete equipment which comprises a bottom plate, a supporting plate, a guide rod, a hydraulic cylinder, an extrusion plate, a fixing disc, a supporting plate, an air cylinder and a rotary disc, a pressing plate is driven to move along the guide rod through telescopic movement of the output end of the hydraulic cylinder, and materials borne on the supporting plate are extruded through the pressing plate; when materials or molds on the supporting plate need to be replaced, the output end of the driving air cylinder is controlled to move so as to drive the rotating disc and the tray to rotate to an operation station, and the working steps are completed; the first sliding groove comprises a straight line section, a connecting end, a first arc section and a second arc section, and a protruding end is formed at the connecting position of the first arc section and the second arc section. When the sliding block passes through the protruding end, the gap between the wall face of the sliding block and the inner wall of the first sliding groove can be enlarged so that abrasion or blocking between the sliding block and the sliding groove can be reduced, and linear driving brought by telescopic movement of the output end of the air cylinder is achieved through the linear section. Through the first arc section and the second arc section which are reasonably arranged on the opposite sides of the straight line section, the sliding block can be effectively guided, abrasion generated when the sliding block continuously moves in the first sliding groove along the straight line can be effectively avoided, and the situation that the rotating precision and stability of the rotating disc are affected due to the fact that the side, making contact with the sliding groove, of the sliding block is seriously abraded and gaps exist is avoided; therefore, the working stability and reliability of the deformation extrusion complete equipment for the light metal can be ensured.
Owner:SHANDONG GUOMATRIX NEW MATERIALS TECHNOLOGY CO LTD

Structure and method for testing static and dynamic performance of heavy-load elastomer

The embodiment of the invention discloses a heavy-load elastomer static and dynamic performance test structure and method. The heavy-load elastomer static and dynamic performance test structure provided by the embodiment of the invention comprises a fixed load structure, a suspension module and a control module. The invention aims to provide a heavy-load elastomer static and dynamic performance test structure for engineering actual demands, solves the defect that the existing single test structure is difficult to comprehensively test the static and dynamic performance of a heavy-load elastomer, and integrates an electro-hydraulic actuator and an electric test actuator during static and dynamic stiffness test, so that the test efficiency is improved, and the test cost is reduced. Two kinds of loading force are provided through a single structure, meanwhile, a fixed load structure subjected to complex mechanical design is suspended through the suspension module, vibration interference from a foundation is greatly reduced, and therefore the accuracy of static and dynamic performance parameter testing of the heavy-load elastomer is improved.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Balance valve assembly and connecting structure of balance valve assembly and height adjusting oil cylinder

The utility model relates to a balance valve assembly and a connecting structure of the balance valve assembly and a height adjusting oil cylinder, the balance valve assembly comprises a balance valve, a mounting seat and a connecting plate, a valve body of the balance valve is detachably and fixedly connected to the mounting seat, the mounting seat is detachably and fixedly connected to the connecting plate, an oil inlet channel and an oil return channel are arranged in the mounting seat, and the oil return channel is communicated with the oil inlet channel. An outlet of the oil inlet channel is connected and communicated with an inlet of the balance valve, an inlet of the oil return channel is connected and communicated with an outlet of the balance valve, and an inlet of the oil inlet channel and an outlet of the oil return channel form an inlet and an outlet of the balance valve assembly respectively. The connecting structure comprises a height adjusting oil cylinder and a balance valve assembly adopting a two-way balance valve, the balance valve assembly is separated from the height adjusting oil cylinder, and two inlets of the balance valve assembly are connected with two cavities of the height adjusting oil cylinder through oil pipes respectively. The balance valve assembly disclosed by the utility model can be separated from the height-adjusting oil cylinder and is arranged at any other position which can be prevented from being damaged by coal rocks on the coal mining machine, so that the working reliability is high and the service life is long.
Owner:SHANGHAI TIANDI MINING EQUIP TECH CO LTD

Novel cover plate for starting end box of power distribution bus and box body structure of starting end box

The utility model relates to a novel cover plate for a power distribution bus starting end box and a box body structure of the starting end box, the upper part of a main plate of the cover plate is provided with a plurality of upper mounting holes corresponding to tightening bolts, and the upper mounting holes are provided with large holes through which bolt heads of the tightening bolts pass and small holes which are positioned at the upper parts of the large holes and are used for limiting screw rods of the tightening bolts; a plurality of lower groove holes corresponding to the positioning bolts are formed in the bottom of the main plate; the box body comprises a top plate, a bottom plate, a surrounding plate and a cover plate, an upper flange of the top plate is fixed to the periphery of the surrounding plate, and tightening bolts are installed on a plurality of upper threaded holes in the upper flange, located on one side of the opening, of the top plate; the lower turned edge of the bottom plate is fixed to the periphery of the surrounding plate, positioning bolts are installed on a plurality of lower threaded holes in the lower turned edge, located on one side of the opening, of the bottom plate, the upper installation holes in the cover plate correspond to the tightening bolts, and the lower groove holes correspond to the positioning bolts. The device is simple in structure, is convenient to dismount, mount and operate, and can solve the risk that the bolt falls into a lower cabinet.
Owner:CHANGZHOU TAIPING COMM SCI & TECH

Method for testing and evaluating non-magnetic stainless steel for instrument while drilling in logging industry

The invention belongs to the technical field of stainless steel performance test, and particularly relates to a test evaluation method of non-magnetic stainless steel for a logging industry while-drilling instrument, which comprises the following steps: (1) testing various non-magnetic stainless steel materials, and recording test results; wherein the test content comprises chemical components, mechanical properties, magnetic properties, corrosion resistance, weldability, internal defects, purity and grain size; (2) applying the non-magnetic stainless steel material to an instrument while drilling in the well logging industry, and determining the non-magnetic stainless steel material meeting the use requirement according to the use condition; (3) sorting the test results of the non-magnetic stainless steel material meeting the use requirements, and determining the threshold value of each test result; and (4) judging whether other types of non-magnetic stainless steel materials meet the use requirements of the instrument while drilling in the well logging industry or not by taking the threshold value as a standard. According to the method, the non-magnetic stainless steel meeting the underground actual drilling working condition can be screened out, and the working reliability of the instrument while drilling is guaranteed.
Owner:CHINA OILFIELD SERVICES LTD

Design method for destroy-resistant structure of separated flight recorder based on multi-layer lattice structure

The invention discloses a design method of a disconnectable flight recorder destroy-resistant structure based on a multi-layer lattice structure, and relates to the field of shock-resistant structure design, comprising the following steps: designing a disconnectable flight data recording system destroy-resistant protective structure; designing a multi-layer lattice structure of a mechanical shell layer; establishing an impact numerical simulation model for the multi-layer lattice cell element structure, and verifying the axial compression performance of the structure based on an explicit dynamics method; a crushable foam model is adopted to simulate buckling deformation of the lattice structure, and protection structure impact simulation analysis is carried out to verify the overall impact strength of the recorder protection structure; a design variable is selected, a test design method is selected to establish a response surface agent model based on the simulation sample, and an optimization algorithm is selected to carry out impact resistance optimization design; the problem of crash protection of the separated flight data recording system is solved, the design and optimization of the shock-resistant protection structure of the separated flight data recording system are realized, and the method has a good engineering application prospect.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Testing device and testing method compatible with memory alloy wire and air valve

The invention belongs to the technical field of memory alloy testing, and discloses a testing device and a testing method compatible with a memory alloy wire and an air valve. The testing device comprises a constant-temperature box, a control box arranged in the constant-temperature box, a wire testing assembly and an air valve testing platform, wherein a controller is arranged in the control box, and the wire testing assembly and the air valve testing platform are movably arranged with the box body. Wherein the wire material testing assembly comprises a detachable wire material clamping device and a wire material testing platform. At the moment, the wire material testing assembly and the air valve testing platform can be respectively or simultaneously arranged on the box body and are connected with a controller in a wiring manner, so that the performance test of a plurality of memory alloy wire materials and a plurality of / or a plurality of memory alloy air valves can be simultaneously realized through the device. The testing method is carried out based on the testing device. Therefore, the method has the technical advantages of being simple in testing process, low in testing cost and high in accuracy.
Owner:TITANIUM TECH (JIANGSU) CO LTD

Hydrodynamic torsional vibration damper

The application provides a hydraulic damping torsional vibration damper, and relates to the technical field of vibration damper, which comprises a driving part, a driven part and a limiting piece; the driving part comprises a shell, the driven part comprises a rotating disc, and the limiting piece comprises a protrusion and a groove; the supporting blocks are arranged at intervals from the groove bottom of the sliding groove to avoid friction caused by abutment of the supporting blocks and the shell surface; meanwhile, for the two supporting blocks in the sliding hole and the sliding groove, when the driving part and the driven part relatively rotate, the two shells rotate relative to the rotating disc; one of the supporting blocks abuts one end of the sliding hole and is separated from one end of the sliding groove, and the protrusion is located in the groove, so that the supporting block is relatively static with the rotating disc and does not contact the shell; the other supporting block is separated from the other end of the sliding hole and abuts the other end of the sliding groove, so that the supporting block is relatively static with the shell and does not contact the rotating disc, thereby avoiding friction between the supporting blocks and the rotating disc and the shell, reducing the operation noise and abrasion of the vibration damper, and ensuring the overall service life and working reliability of the vibration damper.
Owner:LUOYANG DONGFANG ZHONGCHENG CLUTCH CO LTD

A pasta machine driven by double motors

The present invention proposes a double-motor driven pasta machine, comprising a machine base, a dough kneading assembly and a noodle extruding assembly arranged on the machine base; the dough kneading assembly comprises a mixing barrel and a stirrer with a dough inlet at the bottom, the stirrer comprising a stirring rod; the noodle extruding assembly comprises a noodle extruding barrel connected to the mixing barrel through the dough inlet, a noodle extruding screw arranged in the noodle extruding barrel, and a noodle outlet die head arranged at the front end of the noodle extruding barrel; the machine base comprises a machine base shell, in which a dough kneading motor connected to the stirring rod and a noodle extruding motor connected to the noodle extruding screw are arranged; the noodle extruding motor comprises a noodle extruding motor body and an noodle extruding motor output end perpendicular to the noodle extruding motor body, the noodle extruding motor body is arranged horizontally in the machine base, the noodle extruding motor body is arranged parallel to the stirring rod, the noodle extruding motor output end is arranged coaxially with the noodle extruding screw, the noodle extruding screw is located below one end of the stirring rod and is arranged orthogonally to the orthographic projection of the stirring rod. The present invention is conducive to making the pasta machine play the best noodle making performance.
Owner:BEAR ELECTRICAL APPLIANCE CO LTD +1

A cleaning apparatus

The utility model discloses a kind of cleaning equipment, including battery, sewage tank, fan and host shell, the battery and fan are separately arranged in host shell, the sewage tank is connected on host shell, the battery and host shell are abutted, the sewage tank includes sewage tank shell, the part of host shell and battery abutment and the gap between sewage tank shell, the fan can produce airflow, the airflow passes through sewage tank and gap. When this cleaning equipment carries out cleaning work, external sewage can be sucked into sewage tank by the airflow of fan, and the heat emitted by battery can be transmitted to gap through host shell, so that the airflow generated by fan can take away the heat at gap when passing through gap to avoid heat remaining in this cleaning equipment, to ensure the work reliability of other components in cleaning equipment, improve the service life of this cleaning equipment.
Owner:SUZHOU PROVAC TECH CO LTD

Power line buckle device

The utility model discloses a power line buckle device which is used for limiting a plug to a socket and comprises two fixing assemblies, two limiting pieces and a flexible connecting piece. The two fixing assemblies are used for being fixedly installed on a socket. Each fixing assembly comprises a fixed part and a movable part, and the fixed part is suitable for being fixed to the socket; the movable piece is connected to the fixed piece and provided with a limiting hole. The two limiting pieces and the two fixing assemblies are arranged in a one-to-one correspondence mode. Each limiting piece comprises a first end and a second end which are opposite, and the first end is detachably inserted into the corresponding limiting hole. The flexible connecting piece is used for being wound on the periphery of the plug; the flexible connecting piece is connected between the second ends of the two limiting pieces. Therefore, under the fixing effect of the power line buckle device, the plug can be reliably limited on the socket, the situation that the plug is accidentally loosened from the socket or even falls off is avoided, and the working reliability of electrical equipment is guaranteed.
Owner:APPOTRONICS CORP LTD

Electric operating mechanism

The utility model relates to an electric operating mechanism which comprises a mechanism frame, a shell, an intelligent control circuit board assembly, an electric operating assembly and a sliding block, and the electric operating assembly comprises a motor, a motor gear, a manual operating shaft, a driving gear, a transmission gear set and a cam in linkage fit with the manual operating shaft. The mechanism frame is provided with a gear cover covering the motor gear, the driving gear and the transmission gear set, the mechanism frame is provided with a motor cover covering the motor, one end of the manual operation shaft is provided with a manual operation hole exposed out of the gear cover, and the manual operation shaft is provided with a switch-on and switch-off indicating dial corresponding to the manual operation hole. The intelligent control circuit board assembly comprises a power supply circuit board and a wiring terminal, a plurality of supporting columns are arranged on the gear cover, the power supply circuit board is arranged on the supporting columns, and a plurality of screws connected with the supporting columns are arranged on the power supply circuit board. The utility model has the advantages of simple structure, stable and reliable performance, small volume and convenient assembly.
Owner:YUEQING JIANBO ELECTRIC CO LTD

Pot cover for cooking pot and cooking pot

The invention belongs to the technical field of kitchen appliances, and discloses a pot cover for a cooking pot and the cooking pot, the pot cover comprises a shell with a handle part, a cover body for covering the pot and a stirring module, a through hole is formed in the cover body in the thickness direction in a penetrating mode, the stirring module is provided with a driving mechanism and a stirring tool bit, the driving mechanism is assembled on the shell, and the stirring tool bit is assembled on the shell. The driving shaft is located below the shell and can be arranged in the through hole in a penetrating mode, the driving shaft is configured to rotate with the axis of the driving shaft as the axis, and the stirring tool bit can be installed on the driving shaft and can synchronously rotate along with the driving shaft; the shell is detachably installed at the top of the cover body, the length of the shell extends in the radial direction of the cover body, at least one of the two ends of the shell is provided with a flange extending in the direction of the cover body, when the shell and the cover body are in an assembled state, the stirring tool bit is located below the cover body, and the flange abuts against the outer edge of the cover body. According to the pot cover, the assembly precision, the assembly convenience and the working reliability of the cooking pot with the pot cover can be improved.
Owner:HANGZHOU ROBAM APPLIANCES CO LTD