26results about How to "Realize the protection function" patented technology

This invention relates to a double diaphragm coupling that limits radial displacement and provides overload protection. The invention includes a driving adapter plate, comprising a first adapter plate flange and a first connecting surface extending axially along the center of the first adapter plate flange; a driven adapter plate, comprising a second adapter plate flange and a second connecting surface extending axially along the center of the second adapter plate flange; a spacer shaft with circumferentially spaced third connecting blocks extending axially; the first connecting surface and its corresponding third connecting surface are mated by engagement of the first and third connecting blocks; the second connecting surface and its corresponding third connecting surface are mated by engagement of the second and third connecting blocks. This invention limits the radial displacement of the diaphragm coupling when it is subjected to radial offset, preventing damage to the diaphragm and protecting the diaphragm coupling.

The utility model discloses an anode current collecting disc of a cylindrical nickel-zinc battery, and particularly relates to the technical field of anode current collecting discs, the anode current collecting disc comprises a top plate, a current collecting disc main body and a tab, a partition table is fixed at the bottom end of the top plate, the current collecting disc main body is fixed at the bottom end of the partition table, and the tab is fixed at the bottom end of the current collecting disc main body. And a flow guide assembly is arranged at the central position of the bottom end of the tab. Through the arrangement of the bottom tube and the baffle plate, electrolyte can flow into the battery along the liquid discharge holes symmetrically distributed on the outer side wall of the bottom tube when being injected along the liquid injection hole in the pole, and the baffle plate positioned at the bottom can assist the electrolyte to be dispersed all around, so that the time that the alkaline electrolyte is absorbed by a battery cell can be prolonged, and meanwhile, the service life of the battery cell is prolonged. The baffle plate can prevent the alkaline electrolyte from directly reaching the bottom of the battery through the cavity in the middle of the roll core, so that the electrolyte is prevented from being wasted, the liquid absorption amount of the battery core is not enough, and the auxiliary dispersion function of the positive collector plate on the electrolyte is realized.

The application discloses an ultra-low-power high-performance LDO circuit and a control method thereof, which comprises an LDO core circuit, a band-gap reference circuit, an RC series circuit and a static current detection circuit, wherein the band-gap reference circuit and the static current detection circuit are connected with the LDO core circuit respectively; in the static current detection circuit, when the detected voltage is less than a preset first voltage, the reference voltage is sampled and saved in a holding capacitor, the LDO core circuit is in a non-working state, a constant current source is discharged, after a preset time, the voltage on the holding capacitor is reduced to be less than a preset second reference voltage, the LDO core circuit enters a working state, the holding capacitor is charged, and after the voltage is recovered, the LDO core circuit enters the non-working state. Through the static current detection circuit, the circuit enters a hibernation working state without finding a load circuit, and thus an energy-saving working target is achieved. The application can be widely applied in the field of LDO circuits.

The utility model relates to the technical field of site environment regulation, specifically relates to a multifunctional integrated device for site environment regulation, the device includes support truss, support truss has the covering structure for covering site, the covering structure has certain inclination angle, the upper end surface has the glass cover of infrared electrochromic glass constitution, infrared electrochromic glass downside is arranged with mechanical type regulation and control louver, the covering structure still includes the spraying system and air outlet system at the lower side of mechanical type regulation and control louver, and the glass observation system of side, through above -mentioned setting, effectively solved the technical problem that site environment regulation device occupies big space in prior art, lacks integrated means and leads to the technical problem that cannot realize the effective protection when and after the site excavation.

This application relates to a battery protection chip and a battery device, including a signal generation circuit, a detection circuit, a logic drive circuit, and a control switch. The signal generation circuit generates a detection signal and sends it to the detection circuit and the logic drive circuit. There are two or more detection signals, which are used to control the detection circuit to enter the detection state corresponding to the detection signal in a time-sharing manner. When the detection circuit receives a detection signal, it enters the detection state corresponding to the detection signal. When it determines that the battery's working state is not normal, it outputs an indication signal to the logic drive circuit. The logic drive circuit generates a drive signal based on the detection signal and the indication signal, which drives the control switch to switch between open and closed states, cutting off or connecting the charging circuit or discharging circuit between the battery and the external device. Since the detection circuit only detects the detection state corresponding to the signal in working state at the same time, other detection states do not need to continuously consume battery power, thus solving the problem of high power consumption of current battery protection chips.

This utility model discloses a novel layered circuit board, relating to the field of circuit board technology. It includes a top signal layer with pre-drilled screw holes at its four corners. A bottom signal layer is located below the top signal layer. A first inner core layer and a second inner core layer are fixedly connected between the top and bottom signal layers. This novel layered circuit board, by incorporating side edging and pre-drilled slots, allows the top signal layer, first inner core layer, second inner core layer, and bottom signal layer to be stacked to form a layered circuit board during use. The plastic side edging covers the narrow edges of the circuit board, further reinforcing the layers and reducing the probability of delamination and cracking under external force. The pre-drilled slots are adapted to the pre-drilled screw holes, achieving a delamination-preventing function and addressing the problem of devices lacking this function.

The utility model discloses a kind of power frequency voltage zero-crossing monitoring and protection opening circuit, including zero-crossing monitoring circuit, precision sampling circuit, opening control circuit and single-chip microcontroller, the zero-crossing monitoring circuit, precision sampling circuit, opening control circuit are electrically connected with single-chip microcontroller The precision sampling circuit and single-chip microcontroller I2C interface are connected, the zero-crossing monitoring circuit and the input port of single-chip microcontroller are electrically connected, the output port of single-chip microcontroller and opening control circuit are electrically connected;The utility model can realize power frequency voltage zero-crossing monitoring using only a small amount of discrete components, and realize voltage zero point vicinity trip under overload and other fault conditions, reduce the energy of arc when switch is opened, prolong the mechanical and electrical life of switch device.

The application discloses an overload protection viscous damper with a monitoring function and relates to the technical field of dampers, which comprises a damper body, a piston rod arranged in the damper body, bushings symmetrically arranged on the inner side of the damper body, a storage cavity and a working cavity separated by the bushings, an overflow port, an overflow valve arranged in the overflow port, a first pressure gauge fixedly installed in the storage cavity, a second pressure gauge fixedly installed in the storage cavity and a third pressure gauge fixedly installed in the working cavity. The damper is kept stable by opening and closing of the overflow valve, and even if the temperature influences the medium flow, the medium cannot flow into the storage cavity through the overflow valve due to the arrangement of the adjusting assembly. In addition, the medium flow rate is gentle due to the arrangement of the porous cylinder, so that the damping force fluctuation is avoided.

The utility model discloses a control circuit supporting lock short-circuit protection in the technical field of electromagnetic lock detection, the control circuit supporting lock short-circuit protection comprises a lock short-circuit protection circuit and a lock short-circuit detection circuit, the lock short-circuit protection circuit is connected with 9-24V power supply voltage, after voltage stabilization, 15V is fixedly output, and the lock short-circuit detection circuit is connected with the lock short-circuit protection circuit. The lock short-circuit detection circuit is connected between the lock short-circuit protection circuit and the CPU main control circuit, and the CPU main control circuit controls the lock short-circuit protection circuit to allow or prohibit voltage output according to a read voltage value; the lock short-circuit protection circuit with the MP2315 chip outputs stable voltage to serve as a power supply of the electromagnetic lock, short-circuit feedback detection is achieved through the lock short-circuit detection circuit, and therefore the functions of electromagnetic lock short-circuit fault detection and protection are achieved, potential safety hazards caused by lock faults are effectively reduced, and the product operation and maintenance cost is reduced.

The utility model discloses a sleeve type linear electric cylinder which comprises a base, a driving assembly and an output sleeve, and the driving assembly is arranged on the base and is in transmission connection with the output sleeve so as to drive the output sleeve to do telescopic motion relative to the driving assembly. A first connecting part is arranged at the end, away from the driving assembly, of the output sleeve, and when the output sleeve moves to the minimum stroke position, at least part of the driving assembly is located in the sleeve. According to the sleeve type linear electric cylinder, under the condition that the same stroke is achieved, the overall length is shorter, and occupied space is greatly reduced. In addition, the cantilever effect can be effectively reduced, and the overall rigidity of the electric cylinder is improved. Besides, the output sleeve naturally forms a protective cover in the working process of the electric cylinder, the protective function is achieved through the structural characteristics of the output sleeve, an outer shell does not need to be additionally arranged, cost is reduced, and the size of the electric cylinder is reduced to a certain degree.

The application provides a waterproof and dustproof device for a bridge lateral support, the lateral support is arranged on both sides of a bridge span structure and is used for cooperating with a limiting stand column to limit the bridge span structure from deviating from the center of the bridge in a longitudinal expansion and contraction process, and the waterproof and dustproof device comprises a frame, the frame is sleeved outside the lateral support, the frame has a first end connected to the bridge span structure and a second end away from the bridge span structure along the axial direction of the lateral support, a protection plate is arranged on the side surface of the frame, a flexible structure is arranged at the second end, the flexible structure adopts a brush, and the flexible structure is used for flexibly contacting the frame with the limiting stand column. The waterproof and dustproof device can prevent rainwater and dust from entering the lateral support, avoid the adverse effects caused by rainwater and dust, improve the service life of the lateral support, and reduce the maintenance cost.

The utility model discloses a transducer handle protective sleeve and ultrasonic transducer subassembly relates to medical instrument technical field, the transducer handle includes the casing, passes through the screw rod of casing front end and passes through the cable of casing rear end, its characterized in that: the protective sleeve is equipped with the accommodation cavity, passes through the accommodation cavity and passes through the screw rod and the cable that passes through the casing rear end. The protective sleeve can be sleeved outside the screw rod and the front end of the shell; or through the accommodating cavity, the protective sleeve can be sleeved outside the rear end of the shell and the cable. According to the technical scheme provided by the utility model, a user can conveniently hold the transducer handle to carry out disassembly and assembly operation, and the screw rod can be protected.

The invention relates to the field of new energy automobile battery manufacturing, in particular to a new energy automobile battery. Compared with an existing new energy automobile battery, through the linkage structure of the connecting rod and the gear, opening and closing of the two cover plates can be achieved, and lifting of the internal battery can be achieved, so that the heat dissipation function and the protection function of the battery are achieved, when the two cover plates are opened, the internal battery is lifted, and meanwhile the cooling fins are opened; the cooling of the interior of the battery and the battery is accelerated; and when the two cover plates are closed, the battery descends back to the interior of the box body, so that the battery is protected.

The utility model belongs to beacon equipment technical field, specifically is beacon equipment data control protection device, including beacon machine, the beacon machine is installed on the wall through support, the beacon machine outside wall is equipped with buffer assembly, the beacon machine is equipped with heat dissipation subassembly through buffer assembly, the beacon machine is equipped with filter component through buffer assembly, the beacon machine is equipped with sealing assembly through buffer assembly, buffer assembly includes restraint frame, rubber pole, protective cover, rubber cylinder and fixed ring, restraint frame can be detachably installed in beacon machine outside wall, through above -mentioned structure, the setting that buffer assembly weakens the impact that beacon machine received, constitutes beacon equipment protection structure, has realized the function that beacon machine is protected when beacon machine received external force or impact, has solved the problem that beacon machine is damaged inside electronic components because of external force and impact of beacon machine, has improved the stability when beacon machine uses.

The application relates to a display screen assembly and a vehicle, the display screen assembly comprising a display screen, a cover plate and a buffer pad, the display screen having a display side; the cover plate is movably connected with the display screen and has a covering position for covering the display side and an opening position away from the display side; the buffer pad comprises a main body part and a plurality of spaced convex parts, the main body part is arranged on one side of the cover plate facing the display side, and the plurality of convex parts are connected to the side of the main body part away from the cover plate. The buffer pad improves the buffering performance by arranging the plurality of spaced convex parts, can more effectively absorb the impact caused by complex vibration, and can more reliably protect the display screen.

The application provides a stair step corner local repairing, formwork supporting, finished product protecting and integrating device and a working method, the integrating device comprises a vertical formwork cover plate, a horizontal protection flap, a shaft slot connecting component and a jacking bolt assembly; the vertical formwork cover plate is integrally formed with a right-angled stress bending plate on both sides, the right-angled stress bending plate is fixed on both sides of the step through the jacking bolt assembly; the horizontal protection flap is connected with the upper end of the vertical formwork cover plate through the shaft slot connecting component and is locked, and the horizontal protection flap and the horizontal plane of the step form an inclination angle of 2-6 degrees. The application can realize local accurate formwork supporting, efficient construction, synchronous finished product protection, improve repairing quality, construction efficiency and economy.

This utility model relates to a device for separating residual zinc liquid from zinc dross, belonging to the field of zinc dross separation technology. The device includes a separation component, a drive component fixedly installed on the top of the outer side of the separation component, and four support rods installed on the bottom of the outer side of the separation component. A buffer component is installed at the bottom of the four support rods to cooperate with them. Through the structural design of the separation component and the drive component, this utility model can achieve centrifugal rotation separation of the zinc dross. During centrifugation, the zinc dross is heated by a heating wire, facilitating the melting of the solidified zinc liquid remaining on the outside of the dross into a liquid state, making it easier for operators to collect and separate later. Simultaneously, the design of the sleeve and mixing rod allows for mixing of the zinc dross, improving the uniformity of heating in the later stages and ensuring the efficiency and quality of zinc dross separation.

The application provides a manufacturing method of a low-altitude aircraft landing gear cover plate, the landing gear cover plate comprising a cover plate body and an edge connecting part, the cover plate body is designed in a curved surface structure, the edge connecting part is distributed in a U shape along the left side, the right side and the bottom of the cover plate body, is smoothly and transitionally connected with the cover plate body and is in a plate structure, the edge is rounded, mounting holes are formed in the edge connecting part, mounting holes are also formed in the top of the cover plate body near the outer edge, carbon fiber SMC prepreg is used as a raw material for preparation during manufacturing of the landing gear cover plate, a mold is designed (the actual size of the mold cavity is 0.5%-1.0% larger than the actual size of the landing gear cover plate) and a process is controlled (precise control is performed on a forming process, temperature fluctuation is less than or equal to ±1℃, pressure fluctuation is less than or equal to ±0.1MPa, curing time error is less than or equal to ±5s, and a shaping tool cooling mode is adopted), so that the prepared landing gear cover plate is stable in size, easy to assemble and capable of guaranteeing the assembly quality of the low-altitude aircraft and flight safety.

The utility model relates to dumbbell equipment technical field, and disclose a kind of adjustable dumbbell disc's dumbbell, including dumbbell equipment component, the both ends of dumbbell equipment component are equipped with locking adjusting component, and protective component is equipped on dumbbell equipment component, and dumbbell equipment component includes gripping shaft section, the both ends of gripping shaft section are equipped with check ring, the outside of check ring is fixedly connected with sleeve shaft section, the outer end of sleeve shaft section is fixedly connected with screw locking shaft section, sleeve shaft section is all sleeved with dumbbell disc piece, locking adjusting component includes locking screw cap piece, and locking screw cap piece is threaded on screw locking shaft section, the inside of locking screw cap piece is fixedly connected with the base shaft column of uniform distribution, the shaft body of base shaft column is movably sleeved with movable shaft, and movable sleeve is connected on sleeve shaft section, and the movable sleeve is equipped with plane bearing, the shaft body end of movable shaft is connected with the plane end of plane bearing, and spring is sleeved on the shaft body of movable shaft.

The utility model discloses a battery protection board assembly, a battery and electronic equipment. The battery protection board assembly comprises a rigid-flex board and a connector, the rigid-flex board comprises a board main body and a battery protection chip, the board main body is provided with a first surface and a second surface which are opposite to each other, the battery protection chip is electrically connected to the first surface, the second surface is provided with a tab bonding pad, the tab bonding pad is used for being electrically connected with a tab of a battery cell, and the connector is arranged on the first surface or the second surface. The connector is used for being connected with a mainboard of the electronic equipment. The rigid-flex board is used as a mounting carrier, and the battery protection chip is integrated on the rigid-flex board, so that the number of stacked parts can be reduced, and the thickness of the battery protection board assembly can be effectively reduced and the volume of the battery protection board assembly can be reduced on the premise of realizing a battery protection function; therefore, more space can be vacated for arranging the battery cells, the capacity of the battery can be increased, and the miniaturization of the whole machine is facilitated at the same time.

The invention discloses an insulated bus connection type ring main unit, which relates to the technical field of power distribution equipment, and comprises a cabinet body, two main circuit units are arranged in the cabinet body, incoming and outgoing line sleeves are arranged at the bottoms of the main circuit units, the incoming and outgoing line sleeves are connected with a current transformer, and the current transformer is mounted in the cabinet body through a transformer support. And the incoming and outgoing line bushings of the two main circuit units are connected through an insulating bus coupler. The two main circuit units are connected with the insulation bus coupler through the wire inlet and outlet sleeve, the wire inlet and outlet sleeve can be connected with the current transformer, assembly is easy and convenient, construction is convenient, and the functions of phase sequence detection, electricity testing and line protection are achieved.

The utility model relates to the technical field of hydraulic pressure, and disclose a kind of electromagnetic reversing valve for coal dust removal hydraulic system, including valve body, valve head, the surface of valve body is fixedly installed with valve head, the surface of valve body is equipped with protection structure, protection structure includes connecting plate, the surface of connecting plate is fixedly connected with the surface of valve body, the surface of connecting plate is equipped with sliding slot, the inner wall of sliding slot is slidably connected with protection plate, the inner wall of sliding slot is slidably connected with first bidirectional screw rod, the surface of first bidirectional screw rod's camber surface is threadedly connected with the surface of protection plate, the surface of connecting plate is equipped with motor. The utility model solves the electromagnetic reversing valve for coal dust removal hydraulic system of prior art, usually using controller to drive device, in the long-term use process, controller is vulnerable to external impact, for a long time, the normal use of device is affected, and the working efficiency of device is further affected.

The utility model relates to nitrogen production technical field discloses a combined nitrogen filter core, including upper filter head, the locking mechanism includes elastic dog, the outside of elastic dog is slid in the outside of upper filter head is connected, the outside of elastic dog is connected with extruding block, the outside fixed connection of upper filter head has fixed shaft, the top fixed connection of fixed shaft has anti -drop spring, the other end fixed connection of anti -drop spring is in the bottom side inside of extruding block. In the utility model, the upper and lower sides of two sealing washers and filter core shell that slide in the outside of upper filter head are adhered to realize sealing and protection function, and the two compression compensation components that slide in the outside of upper filter head realize automatic compensation compression, and the elastic dog that slide in the outside of upper filter head is fixed with the help of extruding block that is connected in the outside of elastic dog and carries out clamping to upper filter head.

The utility model discloses a battery protection board assembly, a battery and electronic equipment. The battery protection board assembly comprises a flexible circuit board and a connector, the flexible circuit board comprises a board main body and a battery protection chip, the board main body is provided with a first surface and a second surface which are opposite to each other, the battery protection chip is electrically connected to the first surface, the second surface is provided with a tab bonding pad, the tab bonding pad is used for being electrically connected with a tab of a battery cell, and the connector is arranged on the first surface or the second surface. The connector is used for being connected with a mainboard of the electronic equipment. The flexible circuit board is used as a mounting carrier, and the battery protection chip is integrated on the flexible circuit board, so that the number of stacked parts can be reduced, and the thickness of the battery protection board assembly can be effectively reduced and the volume of the battery protection board assembly can be reduced on the premise of realizing a battery protection function; therefore, more space can be vacated for arranging the battery cells, the capacity of the battery can be increased, and the miniaturization of the whole machine is facilitated at the same time.

The utility model discloses an optical fiber connector with a telescopic adjusting structure, and particularly relates to the technical field of optical fiber connectors, the optical fiber connector comprises a shell, a pin and an optical fiber main body, the shell is internally provided with a telescopic adjusting type connecting assembly, and the connecting assembly comprises a connector, a convex ring, a pin, an optical fiber main body, a fool-proof groove, a clamping groove, an elastic sheet, a buckle and a spring. According to the utility model, the connector is arranged, the connector is movably arranged on the inner side of the shell, the elastic sheet is arranged at the top of the shell, the buckle is clamped in the clamping groove and is matched with the spring to keep balance, and when the buckle on the inner side of the clamping groove is pressed to be separated, the connector can move forwards under the assistance of the spring, and at the moment, the buckle can be clamped into the previous group of clamping groove under the assistance of the elastic sheet, so that the connector is fixed. The position of the connector is assisted to be fixed, the operation is repeated, the extending positions of the connector and the contact pin can be adjusted, and the telescopic adjusting function of the connector and the contact pin of the optical fiber connector is achieved.