28results about How to "Stable conduction" patented technology

According to the laser diode modulation driving circuit provided by the utility model, after a power supply is switched on, the laser diode LD can emit modulation laser with specified frequency. According to the scheme, only one laser diode is used for emitting modulated laser, matching of light path elements is not needed, and use is convenient. According to the technical scheme, the Q2, the Q3, the C1 and the C2 form positive feedback connection, so that the Q1 can maintain stable on and off states, and the switching time of the on and off states is extremely short; and because the R3, the C1, the R4 and the C2 form two charging circuits for timing, the Q1 can maintain the current on or off state for a time determined by the resistance values and the capacitance values of the R3, the C1, the R4 and the C2 and then switch to the other state. Therefore, after the power supply is switched on, the Q1 continuously performs switching between the on state and the off state, and the laser diode LD can emit the modulation laser with the specified frequency, so that the technical problems mentioned in the background technology are solved.

This invention discloses a surgical field gimbal imaging device and method, relating to the field of medical auxiliary devices. The device includes a mounting base, a fixed column fixedly connected to one side of the mounting base, a columnar connecting groove on the side of the fixed column away from the mounting base, a connecting column inserted into the columnar connecting groove, and a connecting seat fixedly connected to the side of the connecting column away from the mounting base. A camera body is mounted on the other side of the connecting seat via a multi-directional rotation mechanism. Multiple limiting mechanisms are also included, used to limit the connection between the fixed column and the connecting column. Each limiting mechanism includes an L-shaped frame fixedly connected to the side wall of the fixed column. Compared to traditional imaging devices and head-mounted supports directly connected via multiple screws, this solution uses a connecting seat at the connection point. The connecting seat and the imaging device employ a simpler, detachable connection method, facilitating disassembly, inspection, and maintenance of the imaging device.

The utility model provides a multi-station press machining system, and belongs to the technical field of machining equipment. The problem that in the prior art, a press is low in automation degree is solved. The multi-station press machining system comprises a rack and a rotating station module connected to the rack, and the rotating station module comprises a rotating disc and a power assembly used for driving the rotating disc to rotate in an indexing mode; the at least two workpiece fixing modules are connected to the rotary table, and each workpiece fixing module is provided with a machining station used for containing a workpiece; the stamping execution module is connected to the rack, and the stamping execution module comprises a stamping execution piece and a stamping driving piece used for driving the stamping execution piece to move up and down in the vertical direction; and the at least one workpiece transfer module is connected to the rack, and the output end of the station transfer module is provided with a clamping jaw used for feeding unmachined workpieces and discharging machined workpieces. The device has the advantages of high efficiency and automation.

This invention discloses an energy meter with a built-in high-current relay, relating to the field of energy meter technology. The energy meter includes a meter box containing a control panel and a relay. A wiring plate is embedded in the end face of the meter box. A through hole is formed in the center of the front of the wiring plate, and wire holes are formed at both ends of the front of the wiring plate. A conical protrusion is movably fitted inside the through hole, and a main rod is fixedly connected to the outer end face of the conical protrusion. This invention overcomes the shortcomings of existing technologies, achieving efficient wiring, stable conductivity, precise clamping, and quick assembly and disassembly. It solves the problems of complex wiring, poor contact, inconvenient maintenance, and low safety in traditional energy meters, and has high social value and application prospects.

The utility model discloses an electric sliding door with a protection component, which comprises a portal frame, a sliding door and a bottom rail, a bottom block is fixedly mounted at the bottom of the sliding door, and the bottom block is slidably connected with the inside of the bottom rail. According to the dust suction device, the electric sliding seat drives the movable door to slide along the linear sliding rail, and meanwhile, the bottom block at the bottom of the movable door synchronously slides along the bottom rail, so that stable movement of the movable door is guaranteed, and in the process, the input end of the suction pump drives the reversing pipe and the interior of the dust suction pipe to generate negative pressure; the dust suction pipes can suck away solid impurities located in the moving path of the bottom block, so that the situation that the impurities hinder movement of the bottom block and the moving door is avoided, and therefore protection of the electric moving door is achieved. The two dust suction pipes are arranged on the two sets of the moving door respectively and matched with corrugated pipes connected between the three-way pipe and the dust suction pipes, and the dust suction efficiency is improved. And stable conduction of solid impurities is ensured while the moving requirement of the moving door is met.

This application provides a high-side NMOS driving circuit and electronic device. The circuit includes a charging power supply module for outputting a charging voltage independent of the main circuit voltage to a bootstrap capacitor module; a lift power supply module for outputting the main circuit voltage to the bootstrap capacitor module; a lift control module for controlling the voltage rise of the bootstrap capacitor module; and a bootstrap capacitor module for outputting a driving voltage to the gate of the NMOS transistor during the voltage rise. During the charging phase, the bootstrap capacitor module is charged to the charging voltage via the charging power supply module. During the lift phase, the bootstrap capacitor module, through the lift power supply module and the lift control module, raises the capacitor voltage to the superposition of the main circuit voltage and the charging voltage to drive the NMOS transistor to conduct. This circuit can still achieve stable NMOS transistor conduction even in scenarios with a wide main circuit power supply voltage range.

The invention discloses a high-conductivity alkaline anion exchange membrane and a preparation method thereof, the high-conductivity alkaline anion exchange membrane is prepared from a rigid aromatic monomer, reactive quaternized polyarylether sulfone, immobilized quaternary ammonium salt, hydrophobic mesoporous SiO2 and a cross-linking agent, and the surface of the high-conductivity alkaline anion exchange membrane is provided with a cation density gradient transition layer and an anti-corrosion coating. The alkali-resistant stability of the membrane is improved through covalent bonding of quaternary ammonium and a three-dimensional cross-linked structure, the mesoporous SiO2 regulates swelling and constructs an ion channel, and the interface contact resistance is reduced through a gradient structure. And the OH <-> conductivity at 80 DEG C reaches 149-168 mS / cm, the 4000 h alkali-resistant retention rate is greater than or equal to 90%, the in-plane swelling rate is less than or equal to 5.1%, the interface contact resistance is as low as 0.08 omega.cm < 2 >, and the composite material has the advantages of high conductivity, low swelling, high alkali resistance and excellent interface compatibility, and is suitable for alkaline fuel cells.

The present invention belongs to the technical field of medical equipment, and specifically discloses a dental root canal bender, comprising a head housing, a core assembly and a core housing for accommodating the core assembly, the core housing being arranged at one end of the head housing, a transmission shaft for driving the core assembly to rotate being rotatably arranged in the head housing; the core assembly comprising a sleeve for clamping a turning needle, the sleeve being rotatably arranged in the core housing, two supports being arranged in mirror symmetry on the upper end surface of the sleeve, an active area being formed between the two supports, a core clamp ring for clamping the turning needle being slidably arranged in the active area, the side surface of the core clamp ring being arched upward to form a toggle portion, an annular groove and an avoidance groove being arranged on the outer side wall of the upper end of the sleeve, an elastic semi-ring body being sleeved in the annular groove, a stopper for limiting the horizontal movement of the core clamp ring being arranged at one end of the elastic semi-ring body, the stopper being located in the avoidance groove and abutting against the side surface of the core clamp ring away from the toggle portion. The turning needle is clamped by the core clamp ring, and it is easy to install and remove the turning needle, and the core clamp ring is not easy to deform and fail.

The utility model discloses a bathroom hose connector structure which comprises a shower head, a straight pipe, a connecting piece and a water inlet pipe. In the application, the water inlet pipe is inserted into the fixed seat and is fixed through an adhesive, then the straight pipe is inserted into the movable seat until the insertion block is combined with the movable seat, at the moment, the through hole in the insertion block corresponds to the movable seat, and the locking rod penetrates through the through hole and is screwed with the screw hole, so that the fixation of the lapping plate and the movable seat is completed; the sealing ring at the bottom of the butt strap abuts against the protruding edge, the air tightness between the movable seat and the straight pipe is guaranteed, the straight pipe is in linkage with the movable seat, the movable seat is in running fit with the fixed seat through the deep groove bearing, and therefore the shower head can be conveniently and rapidly switched. The deep groove bearing with the seal ensures the air tightness between the movable seat and the fixed seat, so that the shower head can be smoothly switched in position while the stable conduction of the water body is ensured.

The invention relates to the field of detection devices, in particular to a gas suction pipeline type combustible gas concentration detection device which comprises a gas suction sampling pipeline structure and a combustible gas detection unit. The combustible gas detection unit comprises an infrared detection cavity, a spherical optical fiber emission light source, an optical fiber and a detection circuit assembly; the inspiration sampling pipeline structure comprises a plurality of inspiration sampling pipelines, and the inspiration sampling pipelines are respectively communicated with different protection areas and are used for extracting sampling gas of the corresponding protection areas. The spherical optical fiber emission light source with the sapphire glass shell and the vacuum cavity is adopted, interference of the external environment on infrared rays emitted by the lamp filament is reduced, the multiple optical fibers are welded to the outer side of the shell, stable and efficient conduction of multiple paths of infrared rays can be achieved, infrared signal attenuation is reduced, the detection circuit assembly is combined with the Beer-Lanbert law, and the detection precision is improved. And the concentration is calculated by accurately measuring the characteristic frequency of the emitted infrared rays, so that the accuracy and consistency of the detection result are further improved.

The invention belongs to the field of display equipment, and discloses a heat dissipation module and electronic equipment, the heat dissipation module comprises a support, a first heat conduction pipe, a heat conduction main body, a first radiator and a second radiator; the support is connected above the electrical apparatus element, one end of the first heat conduction pipe is connected with the support, and the other end of the first heat conduction pipe is connected with the heat conduction main body; the first radiator and the second radiator are connected to the two sides of the heat conduction body respectively. And the heat conduction main body is made of a heat conduction material. By means of the mode, heat generated on the electric appliance elements is stably and rapidly conducted to the surrounding environment, and the equipment cooling efficiency is improved.

This invention discloses a stepper motor frame assembly, including a frame structure, an upper electrode plate, and a middle electrode plate assembly. The upper electrode plate has an annular first electrode plate body and an integrally formed first electrode claw, which is bent from the first electrode plate body and extends axially. The middle electrode plate assembly includes a stacked second electrode plate body and a third electrode plate body, each having a second electrode claw and a third electrode claw arranged opposite to each other, both embedded in the inner wall of the rotor space. The frame structure includes a first frame, a second frame, and a third frame, which are injection molded together with the middle electrode plate assembly. The first frame and the second frame cooperate to form a first winding space and a first rotor cavity, and the second frame and the third frame cooperate to form a second winding space and a second rotor cavity. Each space and cavity has a common central axis. This invention solves the problems of complexity and difficult assembly of existing stepper motor frame assemblies, realizes the integrated design of the electrode plate and the frame, and improves the performance and reliability of the motor.

The utility model discloses a vacuum heat insulation container connecting pipeline, which belongs to the technical field of heat insulation containers, and comprises a connecting pipe, one end of the connecting pipe is provided with a sealing connecting sleeve, the inner surface of the connecting pipe is provided with an inner step, the inner step is provided with a built-in filtering mechanism, and the built-in filtering mechanism comprises a mounting disc. The mounting disc is slidably connected with the inner surface of the connecting pipe, an outer groove is formed in the outer surface of the mounting disc, and a thermal expansion sealing gasket is embedded in the outer groove; according to the utility model, the built-in filtering mechanism is arranged in the pipeline in a matched manner, so that stable conduction of airflow can be completed, meanwhile, good air filtering treatment can be carried out when hot airflow is conducted, dust is prevented from entering the heat insulation container, meanwhile, synchronous cleaning of the air filtering net can be synchronously realized, and the service life of the air filtering net is prolonged. Pores of the air filter screen are prevented from being blocked, the air permeability of the air filter screen is ensured while the filtering effect of the air filter screen is ensured, and the practical application effect of the whole pipeline is improved.

The invention relates to the technical field of valves, in particular to a multifunctional reversing valve which comprises a valve seat, a valve element and a rotating piece, the valve seat is provided with a mounting cavity and four connecting ports extending outwards in the radial direction of the mounting cavity, the valve element is rotationally arranged in the valve seat and provided with a direct flow channel extending in the radial direction of the valve element, and the rotating piece is arranged in the valve seat. The valve seat is provided with a straight flow channel and two arc flow channels which are symmetrically arranged relative to the straight flow channel, the rotating piece is rotationally arranged on the valve seat and connected with the valve element, and when one arc flow channel is communicated with two connecting ports which are perpendicular to each other, the other arc flow channel is communicated with the other two connecting ports which are perpendicular to each other. The reversing valve can be switched among a plurality of pipelines, communication of different pipelines can be achieved according to needs, and the reversing valve is simple in structure and low in cost.

According to the loading structure for the ball screw pair axial clearance measuring device provided by the invention, a special loading structure is arranged for a long screw rod, when a loading motor drives a loading nut to move along a loading slide rail, the loading nut drives a spring connecting plate to move, and the spring connecting plate is connected with the long screw rod; through a spring upper top plate, an S-shaped spring force sensor, a spring lower top plate, a first fixing plate, a second fixing plate and a clamping structure external connection plate, force is transmitted to a lead screw clamping structure, that is, test force is stably applied to a lead screw in a ball screw pair to be detected in the vertical direction. The S-shaped spring force sensor can detect and conduct force in multiple directions at the same time, and it is ensured that the detection result is accurate; the four springs for force conduction are divided into an upper group and a lower group and are respectively arranged in the upper direction and the lower direction of the S-shaped spring force sensor to conduct the force, so that the test force applied by the loading motor can be stably conducted to the clamping structure, and the device is particularly suitable for force conduction in a ball screw pair test of a long screw.

The application belongs to the technical field of bearing test, and particularly relates to a bearing friction torque test tool, which comprises a base, a test table, a test shaft and a test motor. The test table is fixed on the top of the base, the test shaft is rotationally arranged on the surface of the test table, the test motor is fixed on the bottom of the test table and is in transmission connection with the test shaft, and the tool further comprises a dynamic torque sensor, a supporting sleeve, a loading sleeve, a loading wheel, a loading assembly and a clamping unit. The dynamic torque sensor is fixed on the upper end of the test table, and the detection end of the dynamic torque sensor is in transmission connection with the test shaft. The tool can realize dynamic and static friction torque test of bearings under radial partial load working conditions, the test data is more consistent with the real working performance of the bearings, the clamping is convenient, the error caused by the inherent friction torque of the device itself is removed, and the test result is more stable.

The invention relates to a sacrificial anode cage device for an underwater pile foundation, comprising a cage frame, a sacrificial anode block, and a plurality of bracket mechanisms and a plurality of dovetail buckles, wherein the plurality of bracket mechanisms are arranged in a circle around the outer wall of the pile foundation and are fixed in advance, the bracket mechanism comprises a seat plate and a support beam located below the seat plate, the support beam is arranged radially along the pile foundation, the upper side of the seat plate is provided with a guide limit surface, the inner side of the guide limit surface is higher than the outer side, and smoothly extends from the inner side to the outer side, the cage frame comprises two upper and lower transverse annular beams, the cage frame is sleeved on the pile foundation, and the lower end annular beam is pressed against the guide limit surface, the dovetail buckle comprises a dovetail clamping plate, and a clamping bolt, the dovetail clamping plate is provided with a dovetail clamping groove facing downwards, the dovetail clamping groove is clamped on the upper side of the support beam, and the clamping bolt is pressed against the lower side of the support beam; the cage frame and the pile foundation are electrically connected through the bracket mechanism and the dovetail buckle.

The present invention discloses a switch circuit and underwater equipment. The switch circuit includes: a voltage divider, a MOS tube, a controller and a physical switch, wherein: a power supply is connected to the source of the MOS tube and the input end of the voltage divider, a first output end of the voltage divider is connected to the input end of the controller and one end of the physical switch, an output end of the controller is connected to the gate of the MOS tube and the control end of the voltage divider, and a second output end of the voltage divider is connected to the other end of the physical switch and then grounded; when the physical switch is closed, the first output end of the voltage divider outputs a low-level signal to the controller, and the controller outputs a low-level signal to the gate of the MOS tube, thereby turning on the MOS tube; when the physical switch is disconnected, the first output end of the voltage divider outputs a high-level signal to the controller, and the controller stops outputting a signal to the gate of the MOS tube, thereby turning off the MOS tube. The embodiment of the present invention realizes that the MOS tube can be stably turned on, and reduces the power loss when the MOS tube is turned on.

The invention provides a vehicle-mounted coffee machine, and relates to the technical field of vehicle-mounted equipment, the vehicle-mounted coffee machine comprises: a shell, a part of area of the shell is recessed inwards to form an accommodating groove, and the bottom of the accommodating groove is provided with a mounting through hole; the adaptive assembly is installed at the position corresponding to the installation through hole, the adaptive assembly is provided with a water flow channel and an air flow channel, one end of the air flow channel is communicated with the external environment, the other end of the air flow channel is communicated to the water bottle container, the adaptive assembly is used for being connected with the water bottle container in a matched mode, and the other end of the adaptive assembly is communicated with a suction pump of the vehicle-mounted coffee machine; the adaptive assembly further comprises a valve assembly, and the valve assembly is arranged in the water flow channel and used for controlling opening or closing of the water flow channel. And a water bottle container. According to the vehicle-mounted coffee machine, water can be rapidly added or replaced by using the water bottle container as an external water source, the vehicle-mounted coffee machine is convenient and rapid, the water bottle container is stably connected with the vehicle-mounted coffee machine, and water leakage caused by water bottle container toppling due to vehicle bumping is prevented.

The utility model discloses a dust collection pipe supporting structure of a dust collector, which comprises a sleeve, a dust collection pipe is supported and positioned in the sleeve, the bottom end of the sleeve is connected with a floor brush connecting piece and a floor brush through a first pipe fitting, and the top of the sleeve is connected with a dust collector sub-machine through a second pipe fitting; the dust collector support comprises a main rod, moving wheels and a connecting rod. When the dust collector sub-machine is held by a hand to horizontally and laterally pull, the sleeve drives the dust collector bracket to rotate around the floor brush to steer; when the dust collector sub-machine is pressed downwards, the dust collector sub-machine rotates and moves downwards with the moving wheels as fulcrums, and the floor brush is lifted. According to the design, the vertical dust collector can rotate and steer on the horizontal plane and can clean the uneven cleaning plate face and the blanket face which are obviously changed in height more conveniently, the hand fatigue feeling is reduced, and cleaning of a dust collection pipe, a rolling brush in a floor brush and a filtering structure in a dust collector sub-machine can be achieved; the adaptability to users with different heights, body types and using habits is high.

The breaker 1 comprises a fixed piece 2, a movable piece 4, a thermally-actuated element 5 and a resin case 10. The fixed piece 2 has an embedded portion 25 embedded in the resin case 10 in a region which overlaps with the thermally-actuated element 5 in a plan view viewed in the thickness direction. The resin case 10 has an outer peripheral portion 74 formed on the outer perimeter of a recessed portion 73, a first penetrating portion 75 penetrating the recessed portion 73 to expose the embedded portion 25 to the thermally-actuated element 5 side, an island portion 76 interposed between the fixed piece 2 and the thermally-actuated element 5 in the inside of the first through portion 75, and a connecting portion 77 connecting between the outer peripheral portion 74 and the island portion 76.

The utility model discloses a shielding structure, an electric connector and a connector assembly, which belong to the field of electric connectors, the shielding structure is used for shielding the electric connector and comprises a metal shell, a first grounding piece and a second grounding piece, and the first grounding piece and the second grounding piece are respectively arranged on two sides of a cable of the electric connector. The first grounding piece and the second grounding piece are electrically connected with a shielding layer of a cable of the electric connector, the first grounding piece is electrically connected with a grounding terminal of the electric connector, the first grounding piece is provided with an extending part, and the extending part is electrically connected with the metal shell. According to the shielding structure, the electric connector and the connector assembly provided by the utility model, the extension part is additionally arranged at the first grounding piece, so that stable connection between the first grounding piece and the metal shell can be effectively ensured. Furthermore, stable conduction among the grounding terminal, the coaxial line shielding layer connected with the signal terminal and the metal shell is achieved. The electromagnetic interference shielding effectiveness of the metal shell can be fully exerted, and the problem that wires are scalded possibly in a traditional mode is avoided.

The utility model provides an antenna device comprising a feed network, a conductive silver adhesive member, a radiation unit and a base plate, the radiation unit is fixed above the base plate, a clamping position is formed between the radiation unit and the base plate, the bottom end of the feed network is matched with the clamping position in a clamping and embedding manner, and the conductive silver adhesive member is connected between the radiation unit and the feed network. Compared with traditional antenna equipment, the antenna equipment has the advantages that whether the welding problem is appropriate or not does not need to be considered in the manufacturing process, the processing procedures are few, the operation is simple, the line loss is small, and the antenna gain is high.

The invention discloses a multifunctional tea set, belongs to the technical field of tea sets, and aims at solving the problems that a traditional tea set is single in function, poor in heat preservation effect and limited in adaptive scene. The device comprises a base, a supporting rod, a functional assembly and a liquid container, one corner of the base is provided with a fixing hole site with a conductive contact, and a heating disc is installed; the supporting rod is connected with the fixing hole position in a matched mode and electrified through a contact, and a battery is arranged in the supporting rod. The functional assembly comprises a filter support, a tea knife and a cigarette lighter which can be replaced independently and is detachably connected with the top end of the supporting rod. The liquid container is arranged on the heating disc to achieve heat preservation. The base is provided with a power interface which can supply power to the heating disc and charge the battery when an external power supply is connected, and the battery supplies power to the heating disc when the external power supply is not connected. The device integrates multiple functions, is convenient to disassemble and assemble, adapts to indoor and outdoor scenes, and is high in practicability and flexibility and wide in application range.

This invention relates to the field of 4D-CT scanning technology, specifically to a multi-field coupled triaxial seepage loading system for 4D-CT imaging; it mainly includes a core clamping system, an infinite rotation system, an axial compression system, and a two-phase seepage injection system. The infinite rotation system comprises an I-shaped frame consisting of an infinite slip ring stage, an infinite slip ring base, and an infinite slip ring shaft; an infinite slip ring conductive ring is disposed on the outer periphery of the infinite slip ring shaft; an infinite slip ring rotating cavity assembly is fixed to the outer periphery of the infinite slip ring shaft, and has several annular cavities arranged radially therein; an infinite slip ring fixed cavity assembly is rotatably connected to the outer periphery of the infinite slip ring shaft, and has several annular cavities arranged radially therein; the several annular cavities of the infinite slip ring rotating cavity assembly and the several annular cavities of the infinite slip ring fixed cavity assembly are radially corresponding and connected one-to-one; this invention can achieve stable conduction of multiple pipelines and lines under continuous rotation, thereby avoiding pipeline entanglement and line obstruction, and improving the compatibility of the system with the 4D-CT scanning environment.

This invention belongs to the field of tubular busbar connection technology and discloses an impregnation and casting method for epoxy resin vacuum intermediate joints of tubular busbars, including the following steps: S1, conductor treatment; S2, tube end insulation; S3, conductor butt joint; S4, insulation cold shrinkage; S5, sealing and molding. The conductor treatment involves selecting a seamless tubular conductive busbar and locking the limiting flange onto the conductor end. The conductor end is then insulated, and the limiting flange is removed and recycled. This invention uses a detachable and reusable limiting flange and end mold, simplifying the production process, shortening the processing cycle, and reducing busbar manufacturing costs. Furthermore, the use of a tubular joint increases the conductive contact area, avoiding joint overheating under high current conditions. The use of a prefabricated cold shrinkage intermediate joint reduces on-site construction difficulty. This improves the busbar's operational safety and environmental adaptability. The product has a stable structure, long service life, and good engineering application and promotion value.

The utility model relates to the technical field of medical instrument assistive devices, in particular to a connecting and fixing device for stabilizing a treatment head, which comprises a connecting helmet main body, the inner wall of the connecting helmet main body can be completely attached to the head of a patient, and the shape of the connecting helmet main body can be designed according to image data of the head of the patient. The top end of the connecting helmet body is connected with a first structure and a second structure in a replaceable mode, the first structure comprises a connecting cylinder, the second structure comprises a connecting column, the connecting column is fixedly installed at the top end of the connecting helmet body, and a plurality of fixing hooks are arranged on the outer wall of the connecting column. The inner wall of the connecting helmet body can be completely attached to the head of a patient, the shape of the connecting helmet body can be designed according to the shape characteristics of the head of the patient, the connecting helmet body can be conveniently attached to the head of the patient, and the first structure and the second structure can conveniently correspond to the portions, needing to be treated, of the patient; the treatment effect of the ultrasonic treatment head is improved.