153results about How to "Quick draw" patented technology

The invention discloses a liquid-cooled double-shaft-extension alternating current permanent magnet synchronous servo motor and a use method, and relates to the technical field of motors. According to the liquid-cooled double-shaft-extension alternating-current permanent magnet synchronous servo motor and the use method thereof, the two liquid cooling mechanisms can be driven to work along with rotation of two rotor shafts of the double-shaft synchronous rotor mechanism through mutual cooperation of the double-shaft synchronous rotor mechanism, the liquid cooling mechanisms, the cooling pipe mechanisms and the spiral heat dissipation pipes; the liquid cooling mechanisms are enabled to pump and drain cooling liquid, so that the cooling liquid in the cooling pipe mechanism, the spiral heat dissipation pipe and the two liquid cooling mechanisms circularly flows, heat generated by working of the motor can be taken away in time in the circulating flowing process of the cooling liquid, and meanwhile, along with rotation of the double-shaft synchronous rotor mechanism, the heat generated by working of the motor can be taken away in time. According to the motor cooling device, hot air in the shell can be rapidly pumped out, the motor is cooled by combining liquid cooling and air cooling, the cooling effect on the motor is greatly enhanced, and continuous normal operation of the motor is ensured.

The utility model discloses an intelligent spraying system for environment purification, which is characterized in that a liquid storage barrel is fixedly mounted at the middle end of the top of a mounting base, the top of the liquid storage barrel is fixedly connected with a supporting liquid conveying pipe, and the top of the supporting liquid conveying pipe is rotatably connected with a connecting liquid conveying pipe; the top of the connecting liquid conveying pipe is detachably connected with a monitoring box for monitoring environmental dust through a connecting flange, and after the concentration of PM and particulate pollutants in the environment exceeds a warning value, water liquid in the liquid storage barrel is conveyed and sprayed out through the supporting liquid conveying pipe, the connecting liquid conveying pipe, the liquid conveying transverse pipe and the spraying head, so that dust falling and haze removing are achieved, and the environmental protection effect is achieved. And in the spraying process of a liquid conveying transverse pipe and a spraying head, a driving motor, a driving disc and driving teeth are used for driving a rotating fluted disc to do low-speed reciprocating intermittent rotation along a sealing bearing seat, and in cooperation with the horizontally-arranged liquid conveying transverse pipe, the dust falling and haze removing area is wider, and the environment purifying efficiency is improved.

The invention provides a circuit breaker, which at least comprises an insulating shell and internal elements, the internal elements at least comprise an arc extinguish chamber, a static contact, a moving contact, a wiring terminal, an operating mechanism and an arc striking sheet, the arc extinguish chamber is formed by superposing a plurality of metal arc extinguishing grid sheets, and the arc striking sheet and the static contact are integrally arranged. The connecting conductor between the static contact and the wiring terminal is provided with at least one magnet yoke, the magnet yoke is U-shaped or U-shaped, and the opening of the magnet yoke faces the metal arc extinguishing grid sheet or / and the arc striking sheet of the arc extinguishing chamber. When current passes through the connecting conductor, a magnetic field can be generated at the opening of the magnet yoke, and the magnetic field acts on the metal arc extinguishing grid sheet or / and the arc striking sheet to quickly attract an electric arc so as to promote the electric arc to quickly jump; when the moving contact leaves the static contact and generates an electric arc, the metal arc extinguishing grid piece or / and the arc striking piece with the magnetic field accelerates the electric arc generated on the static contact to move towards the metal arc extinguishing grid piece or / and the arc striking piece, and the electric arc deionization effect is improved.

The invention provides a CAD automatic drawing method and application, and belongs to the technical field of CAD automatic drawing, and the scheme comprises the following steps: drawing a base drawing of CAD according to input latitude and longitude information, perfecting a block definition library in a CAD template according to input attribute information, inputting drawing frame setting information, perfecting a CAD template drawing frame library, inputting automatic link information, perfecting a CAD template automatic link library, and completing the CAD template automatic link library. And a template setting table is constructed, and CAD project achievement file output is completed according to project requirements. Drawing of a CAD coordinate base drawing can be completed by inputting longitude and latitude, drawing of a line construction drawing can be completed by inputting attribute information of a corresponding line, rapid drawing is achieved, a CAD block definition library and a text description library are generated according to the attribute information library when the drawing is drawn, blocks can be automatically inserted, text description can be automatically added during later drawing, and the drawing efficiency is improved. And automatic drawing of the drawing is quickly realized.

A harmful gas ventilation system of an offshore wind turbine generator comprises an air bellow, the air bellow is perpendicularly connected with a pipe pile in an inserted mode and installed at the top of the pipe pile, an air inlet is formed in one side of the air bellow, an air outlet is formed in the other side of the air bellow, an exhaust pipe is arranged in the pipe pile, the exhaust pipe and the pipe pile are coaxially arranged, and the exhaust pipe is communicated with the air bellow. Exhaust fans are arranged on the exhaust pipe at equal intervals; according to the utility model, air flow in the foundation can circulate, external fresh air is introduced, the environment in the foundation is improved, hydrogen sulfide gas is eliminated fundamentally, and the damage rate of equipment in the fan foundation is reduced while the personal safety of operation and maintenance personnel is ensured.

The negative pressure liposuction device comprises a machine shell, a liquid storage pipe and a collecting pipe are installed at the bottom of the side face of the machine shell, a liquid injection opening is formed in the surface of the machine shell, a suction pump is installed at the back end of the machine shell, a connecting pipe is connected between the suction pump and a cover plate at the top end of the collecting pipe, and a top plate slides in the liquid storage pipe. According to the device, through the arrangement of the top plate, the adjusting pipe, the electric push rod and the suction force adjusting mechanism, the suction force in an area with more or less fat is adjusted according to the input amount of the swelling liquid, and fat tissues can be separated and liquefied more effectively by increasing the input amount of the swelling liquid in the area with more fat; the suction process is smoother, fat can be sucked more quickly through large suction force, the operation time is shortened, and the risk of injury to subcutaneous tissue can be reduced by reducing the input amount of swelling liquid and the suction force in an area with the small fat amount.

The utility model discloses a planet wheel type sucker rod cam hydraulic clamp back-up clamp, which relates to the technical field of petroleum equipment and comprises a base and a rotating frame. The first base rotating clamping table and the second base rotating clamping table are arranged on the upper portion and the lower portion of the inner end of the base respectively. The first rotating frame clamping table and the second rotating frame clamping table are arranged on the upper portion and the lower portion of the rotating frame respectively, and a gap is formed between the two to form an open cavity. The at least two convex claw clamping parts are rotationally connected into the open cavity through a rotating pin shaft; the convex claw clamping part comprises a convex claw and a convex claw gear which are connected in series through a rotating pin shaft, and a bolt arranged between the convex claw and the convex claw gear; the base gear ring is arranged at the inner ring of the first base rotary clamping table and is meshed with the convex claw gear; the arc-shaped rack is arranged on the periphery of the rotating frame and located above the first base rotating clamping table. Compared with the prior art, the sucker rod rotating frame has the advantages that the whole sucker rod rotating frame is convenient to disassemble and assemble by optimizing the connecting mode of the rotating frame and the base, and the protruding claws can be rapidly replaced so as to be matched with sucker rods of different sizes and specifications.

The dust recovery device for the refractory material crushing equipment comprises a crushing box, supporting legs are symmetrically and fixedly connected to the two sides of the bottom of the crushing box, discharging pipes are symmetrically inlaid in the lower inner portion of the crushing box, and sealing blocks are connected to the inner sides of the bottoms of the discharging pipes in an inserted mode; a recycling mechanism is arranged on one side of the bottom of the smashing box, and a sealing assembly is arranged in the recycling mechanism. Wherein the recycling mechanism comprises a recycling box arranged on one side of the bottom of the crushing box, and an annular plate is fixedly connected to the bottom of the crushing box, so that dust generated during discharging of the refractory material can be quickly sucked, and the effect of effectively purifying the air quality of a working area can be achieved; and therefore, the problem that workers suck dust by mistake and hurt the body can be effectively avoided, the refractory material crushing and recycling efficiency is greatly improved, and convenience is brought to the workers during use.

The plastic bowl injection mold comprises a bottom plate, an L-shaped rod is arranged at the top end of the bottom plate, a first rack is fixedly connected to the inner side of the L-shaped rod, a table top plate is fixedly connected to one side of the top end of the bottom plate, and symmetrically-distributed sliding rails are fixedly connected to the top end of the table top plate; wherein one side of one sliding rail is rotationally connected with a first gear, the first gear is meshed with the first rack, the top end of the sliding rail is slidably clamped with a first sliding plate, the bottom end of the first sliding plate is fixedly connected with a second rack, and a center shaft of the first gear extends to the first sliding rail. The mold opening device has the beneficial effects that one end of the second sliding plate can be quickly stretched into the mold or drawn out of the mold through the matching of the L-shaped rod, the first gear, the first rack, the second gear, the second rack, the first sliding plate, the sliding rail, the third gear, the fourth rack and the fifth rack, so that the mold opening and material taking are realized, the material taking cycle time is shortened, and the production efficiency is improved. Therefore, the injection molding efficiency of the plastic bowl is further improved.

This invention provides an infrared heating welding cutting device, comprising an infrared heating welding mold and a cutting module slidably mounted on the upper end of a device base, wherein the sliding direction of the infrared heating welding mold and the cutting module is perpendicular to the axial direction of the pipe to be welded; an infrared heating module mounting plate is slidably disposed on the device base, and a quick-change fixture is slidably mounted on the upper end of the infrared heating module mounting plate, with the infrared heating welding mold mounted on the upper end of the quick-change fixture; the cutting module includes a mounting frame disposed on the cutting module mounting plate and a blade assembly mounted on the mounting frame, and a grinding component mounted within the mounting frame; the blade assembly includes a fixed blade and a movable blade, wherein the sliding direction of the movable blade is perpendicular to the axial direction of the pipe to be welded; the grinding component includes a base vertical plate slidably disposed within the mounting frame, with a grinding wheel mounted on the base vertical plate; the forward and backward movement of the movable blade and the grinding component is driven by a drive unit with only one power source, and the moving directions of the movable blade and the grinding component are opposite.

The utility model relates to the field of waste heat recovery devices, in particular to a waste heat recovery device for thermal power generation. The technical problem is that a thermal power generation waste heat recovery device in the prior art is generally difficult to improve the utilization rate of heat-containing waste gas, and the heat-containing waste gas is difficult to quickly heat a water body to realize heat energy recovery. According to the technical scheme, the thermal power generation waste heat recovery device comprises an air inlet assembly; the device further comprises a recycling assembly, a temporary storage assembly, a water injection assembly, a water outlet assembly and a waste gas purification assembly. Waste gas is introduced into the gas inlet body, then the waste gas can be discharged into the recycling assembly through the gas inlet pipe, heat-containing waste smoke can flow through the interiors of the first spiral pipe and the second spiral pipe, and the first spiral pipe and the second spiral pipe are both spiral, so that the heating effect on a water body can be improved; therefore, the waste heat utilization rate of the device can be improved, and the technical problem is solved.

This application belongs to the field of carbon fiber tube manufacturing technology, and discloses a carbon fiber tube centrifugal forming manufacturing system and process. The carbon fiber tube centrifugal forming manufacturing system includes a mold assembly and a centrifugal drive assembly. The mold assembly includes a module frame, individual frames, and mold components. The module frame is detachably connected to several individual frames, and the individual frames are detachably connected to several mold components. The mold components include a tubular mold with external hexagonal sleeves at both ends and detachably connected plugs at the ends. The centrifugal drive assembly includes a housing, a motor, and a platform. The housing and motor are mounted on the platform. A gear set inside the housing enables the motor to drive the external internal hexagonal sleeve to rotate. The internal hexagonal sleeve and the external hexagonal sleeve are inserted and engaged to drive the tubular mold to rotate and achieve centrifugal forming. This application solves the pain points of existing equipment and processes, such as poor versatility, cumbersome operation, low forming accuracy, and limited efficiency, through synergistic optimization of structure and process.

The utility model belongs to the technical field of steel ball production equipment, concretely relates to a multi-specification steel ball storage cabinet, including the cabinet body, the cabinet body inner wall symmetry is equipped with mounting plate, evenly is equipped with a plurality of support plates on the mounting plate, is equipped with the recess on the support plate, a plurality of auxiliary wheels are installed in the recess, is provided with the storage rack on the auxiliary wheel, a plurality of baffle plates are installed in the storage rack, and the clamping part is arranged between the adjacent baffle plates and the baffle plate and the side wall of storage rack, the arc clamping plate is symmetrically arranged on both sides of the clamping part, electric push rod is installed in one side of arc clamping plate, the utility model drives electric push rod through external industrial computer to adjust the clamping distance between arc clamping plate, so that the steel ball of different specification sizes is better clamped and fixed, a plurality of storage racks and clamping parts can place different specifications steel ball respectively, and the setting of gyro wheel and auxiliary wheel is favourable to the quick putting or drawing of storage rack in the cabinet body.

The utility model discloses a warp knitting machine convenient for taking out rolled fabric, relates to the technical field of warp knitting machines, and aims to solve the problems that the existing fabric rolling effect is poor, the appearance of a roll is influenced, and the disassembly and assembly are troublesome, time-consuming and labor-consuming. The device comprises two frames, the lower ends of the frames are provided with supporting legs, the supporting legs are connected with the frames in a welded mode, the inner sides of the two frames are connected with a bottom plate and a material collecting roller, the material collecting roller is arranged at the upper end of the inner side of the frame, the two ends of the material collecting roller are provided with rotating rods, and the rotating rods are fixedly connected with the material collecting roller. One end of the rotating rod extends into the receiving roller, the lower end of the rotating rod is connected with a connecting column, the connecting column is movably connected with the rotating rod, the lower end of the connecting column is provided with a connecting plate, the connecting plate is fixedly connected with the connecting column, and the lower end of the connecting plate is provided with an electric push rod; a second motor is arranged at the lower end of the electric push rod.

This utility model discloses a waste liquid recovery device for amino acid chelated calcium production, relating to the technical field of waste liquid recovery devices. To address the problem that existing technologies often use filter cartridges to separate wastewater from waste materials in amino acid chelated calcium production waste liquid containing a large amount of powdery impurities, the filter cartridges require timely replacement after prolonged use, which is complex and interrupts filtration, affecting production efficiency. The multi-layer filtration mechanism includes a first filter cartridge, a second filter cartridge, and a third filter cartridge distributed in a specific manner. A first inlet pipe is fixedly connected to the input end of the first filter cartridge, a second inlet pipe is fixedly connected to the input end of the second filter cartridge, and a third inlet pipe is fixedly connected to the input end of the third filter cartridge. The recovery tank includes a tank body and a hopper. A drain pipe is fixedly installed on one side of the tank body, and a water pump is connected between the drain pipe and the first inlet pipe. A particle size sensor is installed on the tank body near the hopper.

The utility model provides a kind of turnover use reserved hole device in cast-in-place structure, including reserved mould body, reserved slot and limit plate, reserved mould body is enclosed by four side plates, and side plate is inclined to set, and the cavity of upper and lower permeability is formed in reserved mould body, and the lower part of cavity is equipped with close structure, reserved slot is set on opposite two side plates, reserved slot penetrates the lower surface of reserved mould body, reserved slot is used to pass through for reinforcing bar, limit plate is formed by two slab splicing, limit plate is all set on the side plate with reserved slot, and adjacent limit plate is all located at same height, and the horizontal position of slab on side plate is adjustable, the bottom of limit plate contacts with reinforcing bar, and two slabs can be slid away to form gap to pass through for reinforcing bar, and the turnover use reserved hole device in cast-in-place structure can be installed on pouring reinforcing bar quickly when floor concrete is poured, without cutting reinforcing bar, and reserved mould body is extracted quickly after pouring is completed, so it is also convenient for turnover.

The utility model relates to the technical field of environmental safety monitoring, and discloses a household fast-assembly combustible gas alarm, which comprises an alarm main body and a mounting plate, the end face of the mounting plate is fixedly connected with a mounting groove, the interior of the mounting groove is of a cavity structure, an insertion plate is inserted into the mounting groove, and the top end face of the insertion plate is fixedly connected with a connecting plate. The connecting plate is fixedly connected with the alarm body, fixing assemblies are arranged on the two sides of the inserting plate, and a sliding assembly is arranged at the bottom of the mounting groove. The mounting plate is fixed on a wall surface, then the insertion plate is inserted into the mounting groove, the insertion plate and the mounting groove are fixed through the fixing assembly, and the fixing assembly is quickly removed through the sliding assembly, so that the alarm main body is quickly disassembled, and when disassembly operation needs to be carried out, the whole structure of the alarm does not need to be disassembled, and the disassembly is convenient. The alarm is more rapid, convenient and simple to mount and dismount, the dismounting and mounting efficiency is improved, and the practicability and convenience of the alarm are further improved.

This utility model relates to a pulse dust collector for use in feed production workshops, belonging to the field of feed production technology. It includes a dust collector housing with a dust collection hopper fixedly connected to its bottom surface. One side of the dust collector housing has an air outlet, and another side has an air inlet. Two guide rails are fixedly connected to the inner wall of the dust collector housing, and a sliding plate is slidably connected between the two guide rails. A support frame is fixedly connected to the outer surface of the sliding plate, and a dust collector bag is mounted on the outer surface of the support frame via fixing clamps. This device uses a pulse valve and pulse tube to back-blow and clean the dust collector bag with compressed air, effectively preventing filter bag clogging, improving dust removal efficiency, reducing filter bag wear, and extending service life. A drive motor rotates a lead screw, causing the sliding plate to move along the guide rails, allowing the dust collector bag to be quickly pulled out of the dust collector housing without disassembling the entire dust collector, significantly improving replacement efficiency and reducing maintenance costs.

The utility model relates to an oral cavity jaw cyst flusher which comprises a shell and a liquid storage tube, and the interior of the liquid storage tube is divided into a liquid storage cavity and a liquid return cavity. A liquid outlet device is upwards led out from the liquid storage cavity, and a liquid pumping device is upwards led out from the liquid return cavity; the liquid outlet device penetrates through the shell, and a first liquid outlet pipe of the liquid outlet device extends out of the shell. The liquid pumping device penetrates through the shell, and a second liquid pumping pipe of the liquid pumping device extends out of the shell. The inside of the liquid storage tube is divided into the liquid storage cavity and the liquid return cavity, the liquid outlet device is firstly used for being aligned with the bag cavity of a patient to clean the bag cavity of the patient, after the bag cavity of the patient is cleaned, the liquid pumping device is used for being aligned with the bag cavity of the patient, and then residual cleaning liquid flows into the liquid return cavity. Therefore, the structure not only can be used for flushing the bag cavity of the patient, but also can be used for quickly pumping out the residual washing liquid in the bag cavity of the patient, so that the situation that the residual washing liquid cannot be pumped by the flusher is effectively avoided, and the bag cavity of the patient can be conveniently kept clean.

The present invention discloses a multi-point calibration quality control fully automatic coagulation tester, which relates to the technical field of coagulation testers and comprises a detector, wherein a plurality of guide rails are fixedly connected to one side of the interior of the detector, and a blood sample container is slidably connected to one side of the interior of the detector through the guide rails, a plurality of blood sample grooves are provided on the surface of the blood sample container, and the blood sample container is located at one side of the interior of the detector, an outer wall at one end of the blood sample container is through-connected to one side of the bottom of the detector, a sliding frame is fixedly connected to one side of the inner wall of the detector, and the sliding frame is located at one side of the top of the blood sample container, and a guide frame is slidably connected to one end of the interior of the sliding frame. The present invention enables the device to quickly and accurately absorb blood samples from different parts of the same patient, and realize fully automatic detection of blood samples, while effectively improving the detection efficiency of the device, so that an operator only needs to operate once to complete the detection of multiple samples, thereby reducing the labor intensity of the operator while improving work efficiency.

The utility model relates to the technical field of architectural design, and discloses a multifunctional drawing pen for architectural design, which comprises a drawing pen body serving as a connecting main body, the outer wall of the drawing pen body is fixedly connected with a fixing frame, the inner wall of the fixing frame is rotatably connected with a rotating plate, the rotating plate is connected with a moving block through a sliding assembly, and the moving block is connected with the connecting main body. Limiting plates are slidably connected to the inner walls of the moving blocks, inserting blocks are fixedly connected to the opposite ends of the limiting plates, pull rods are fixedly connected to the left ends of the limiting plates, and the outer walls of the limiting plates are slidably connected to the inner walls of the moving blocks. According to the circle drawing device, the guide cone is placed on paper by rotating the rotating plate, then the pull rod is pressed to drive the inserting block to be separated from the fixing hole, when the moving block reaches a proper position, the limiting plate is bounced by the first spring, and the limiting plate drives the inserting block to be inserted into the fixing hole to be fixed, so that circles can be drawn quickly, drawing time is shortened, and working efficiency is improved.

The present application relates to the technical field of new energy comprehensive utilization, in particular to a geothermal photovoltaic hybrid power generation system for water environment, which comprises a floating platform, a support plate arranged above the floating platform, a support frame arranged on the support plate, and a photovoltaic panel installed on the support frame; a maintenance cabin is arranged below the floating platform, a maintenance opening is formed on one side of the maintenance cabin, and an openable maintenance cover is arranged at the maintenance opening; a sealing ring is arranged between the maintenance cover and the maintenance opening; a guide rail is arranged inside the maintenance cabin, a coil pipe frame is arranged in the maintenance cabin and can be pulled and moved along the guide rail, and heat exchange coil pipes are arranged on the coil pipe frame; a second mounting plate is arranged on the other side of the maintenance cabin, a joint pipe is arranged on the second mounting plate, and the joint pipe is communicated with a water supply pipe and a return water pipe; the water supply pipe and the return water pipe are used for being communicated with a geothermal heat exchange loop; and a flushing interface is arranged on the maintenance cabin and communicated with the inside of the maintenance cabin.

This invention relates to the field of waste gas purification technology and discloses a filtration device for a gaseous conveying compressor used in environmental engineering construction. The device filters gas before it enters the compressor to prevent impurities from entering. It includes a filter cylinder for filtering the gas. An inlet pipe is fixedly connected to the left side of the filter cylinder, and a delivery pipe is fixedly connected to the right side. A primary filter screen is fixedly connected to the inner wall of the inlet pipe for preliminary filtration of the gas flowing into the inlet pipe. In this invention, the adsorption box is pulled out of the frame and removed from the filter cylinder by a pull plate, facilitating the cleaning of the activated carbon inside the adsorption box. The gas flow rate slows down after contacting the spiral plate, allowing sufficient time for filtration in the adsorption box, thus improving the filtration effect. The gas diffuses outwards due to centrifugal force, quickly entering the adsorption box for filtration, further improving filtration efficiency.

The utility model relates to the technical field of road construction, and provides a concrete grinding machine for road construction, which comprises a vehicle body, two fixing plates are symmetrically and fixedly arranged at the bottom of the vehicle body, sliding grooves are formed in opposite sides of the two fixing plates, sliding plates are movably embedded in the two sliding grooves, and the concrete grinding machine further comprises a U-shaped plate, the sliding plate is fixedly mounted at the bottom of the sliding plate. The controller controls the motor to start, so that the output shaft of the motor drives the rotating rod to rotate, synchronously drives the grinding tool to rotate, cuts and grinds concrete protrusions, synchronously enables the guide block to slide in the annular groove, and can block sputtered protrusions under the action of the annular baffle, so that the concrete protrusions are prevented from splashing. According to the concrete grinding machine, the rubber blocking pieces are arranged, and under the action of certain elasticity of the rubber blocking pieces, disintegrating slag is located in the rubber blocking pieces, so that when the grinding machine is used for grinding concrete protrusions, the protrusions can be prevented from being splashed, and hurt to nearby personnel can be avoided.

The utility model belongs to the field of activated carbon adsorption box, specifically is a kind of anti ultraviolet polypropylene activated carbon adsorption box, including adsorption box, the side fixed connection of adsorption box has cover one, the middle part fixed communication of cover one has air inlet;The utility model provides a kind of anti ultraviolet polypropylene activated carbon adsorption box, by setting dehumidifier and filter plate, dehumidifier will remove the adsorption box moisture of air into adsorption box, to avoid the case of the insufficient adsorption efficiency of active carbon excessive adsorption moisture to pollutant, improve the adsorption effect of adsorption box to pollutant, the air after dehumidification is contacted with filter plate, and larger particulate matter in air cannot pass through filter plate, to be filtered by filter plate, so that subsequent active carbon is adsorbed to pollutant in air, not easy to be blocked by particulate matter, to extend the service life of active carbon.

The utility model provides a kind of portable data storage, comprising: shell assembly, the outside of shell assembly is provided with side stop component, U disk memory component is provided in shell assembly, smart anti-lost component is connected outside U disk memory component, shell assembly includes external hollow shell, the rear end of external hollow shell is fixedly connected with U type backplate, the outer end of U type backplate is installed with hanging ring, by setting the magnetic connection of first electromagnetic frame and metal sealing plate, cooperate self-rebound hinge, the invasion of sundries is prevented while realizing quick opening and closing, protect internal element, rectangular distribution's compression rubber strip effectively absorbs external impact force, reduce the risk of equipment due to collision damage, the magnetic connection of second electromagnetic plate and rear side metal plate, ensure that U disk is stably stored in non-use state, prevent accidental slip, by electric button control magnetic adsorption intensity, realize the quick extraction and storage of U disk, simplify operation process.

The utility model discloses a gold and silver ware mold reversing device, which relates to the field of gold processing, and mainly structurally comprises a box body, the box body comprises an upper cavity and a lower cavity, a shaft driving component is fixedly arranged at the bottom of the lower cavity, a vacuum pump set is fixedly arranged on one side of the shaft driving component, and a vacuum pump is fixedly arranged on the other side of the shaft driving component. A telescopic power assembly is fixedly arranged on the upper portion of the lower cavity, a telescopic driving rod is fixedly arranged on the inner wall of the upper cavity, one end of the telescopic driving rod is fixedly connected with a vacuum half cavity, one end of a shaft driving assembly is in shaft connection with a centrifugal reverse mold cavity, and a vacuum pipe is fixedly connected to the upper portion of the vacuum half cavity. The gold gypsum model is subjected to centrifugal treatment in a vacuum state, air in the model is exhausted, the gypsum model is completely filled with gold and silver molten liquid, the reverse mold yield of gold ornaments is increased, and the method is suitable for the conditions that the number of machined ornaments is small and the requirement for the yield is high in a small ornament store.

The invention provides a circuit breaker which at least comprises an insulating shell and internal elements, and the internal elements at least comprise an arc striking piece, a static contact, a moving contact, an operating mechanism, a connecting conductor and at least one U-shaped or U-shaped magnet yoke. The connecting conductor is electrically connected with the moving contact, the U-shaped or U-shaped magnet yoke is arranged on the connecting conductor in a sleeving manner, the opening direction of the U-shaped or U-shaped magnet yoke faces towards a magnetic conduction piece or / and an arc striking piece on the moving contact, and the arc striking piece or / and the magnetic conduction piece is / are subjected to the magnetic field action of the U-shaped or U-shaped magnet yoke. Therefore, the residence time of the arc between the moving contact and the static contact is shortened, the opening speed of the moving contact is accelerated, the current limiting capability is enhanced, and the capability of breaking short-circuit fault current is improved.

A nasal aspirator comprises: a suction tip provided with a first channel; a cavity is formed in the suction head shell; the air bag body comprises an air bag and an air bag body mounting part; the suction head bottom cover is provided with a mounting seat and a second channel, the air bag can be fixed in the cavity through the air bag body mounting part, the cavity is divided into a storage cavity and an air bag cavity, the first channel is communicated with the storage cavity, and the second channel is communicated with the air bag cavity; the positive pressure pump comprises a positive pressure pump air outlet, the machine body shell is provided with an air bag air inlet matched with the second channel, and the positive pressure pump air outlet is connected with the air bag air inlet through an electromagnetic valve. Due to the fact that the nasal aspirator body enables the air output by the positive pressure pump to directly enter the suction head of the nasal aspirator through the electromagnetic valve and the air bag air inlet pipe, the nasal aspirator body does not need to be provided with a negative pressure cavity, and the structure of the nasal aspirator body is simplified. Due to the fact that the air bag divides the cavity into the containing cavity and the air bag cavity, the inflated air bag releases air instantly, normal atmospheric pressure in the containing cavity is converted into negative pressure instantly, snot can be sucked rapidly, and user experience is improved.

The utility model discloses a new energy automobile electronic water pump convenient for heat dissipation, which comprises an electronic water pump main body, the top of the electronic water pump main body is provided with a first controller for controlling the electronic water pump main body to work, and the top of the electronic water pump main body is also provided with a heat dissipation assembly for carrying out forced convection heat dissipation on the first controller; the heat dissipation assembly comprises a dustproof net cover, the first controller is covered with the dustproof net cover, and a heat dissipation fan is installed in the middle of the top of the dustproof net cover. The heat dissipation assembly and the heat dissipation fins are arranged on the top of the electronic water pump body, efficient heat dissipation of the first controller is achieved, the heat dissipation fan adopts an air draft mode, hot air around the first controller can be rapidly exhausted, a strong convection effect is formed, and therefore the working temperature of the first controller is reduced, the service life of the first controller is prolonged, and the service life of the first controller is prolonged. Meanwhile, air forms turbulent flow when passing through the auxiliary holes in the surfaces of the heat dissipation fins, and the heat dissipation effect can be further enhanced.