529 results about "External Liquid" patented technology

The invention discloses an efficient heat dissipation system of a new energy automobile circuit board, and the system comprises a composite heat dissipation substrate which is formed by compounding a ceramic substrate layer, a graphene heat conduction layer and a copper alloy supporting layer through vacuum hot pressing, and the surface of the graphene heat conduction layer is provided with a micron-sized groove array; the dynamic heat dissipation assembly comprises a thermoelectric refrigeration module and a temperature sensor which are embedded in the composite heat dissipation substrate, the thermoelectric refrigeration module is linked with the temperature sensor through a PID controller, and active refrigeration based on temperature rise of the circuit board is achieved; the multi-layer heat dissipation channel comprises a micro-channel and a bionic fin structure, the micro-channel vertically penetrates through the composite heat dissipation substrate, the bionic fin structure covers the surface of the substrate, and the micro-channel is filled with a phase change material and is communicated with an external liquid cooling circulation system; the airflow adjusting module comprises a rotatable flow guide plate and a piezoelectric fan array, the flow guide plate dynamically adjusts the heat dissipation airflow direction according to the vehicle speed, and the frequency response range of piezoelectric fans is larger than or equal to 100 Hz.

The invention discloses a five-axis milling machine, and relates to the technical field of five-axis milling machines, a moving frame is arranged on the side of a working table, a working module used for clamping a workpiece is arranged on the moving frame, and a rotating box connected with an external liquid supply assembly is rotationally arranged below the working module; and a nozzle for atomizing the cutting liquid is arranged below the rotating box in a penetrating mode, a lubricating box is arranged on the side of the rotating box, and an oil supply mechanism is arranged between the lower portion of the lubricating box and the lower surface of the working module. According to the five-axis milling machine, the moving frame can achieve three-axis movement through mutual cooperation of the X-axis moving module, the Y-axis moving module and the Z-axis moving module, so that workpieces at different position distances are machined according to needs, the A-axis rotating module can drive the containing table to conduct A-axis rotation, the C-axis rotating module can drive the machining table to conduct C-axis rotation, and therefore the machining efficiency is improved. And the five shaft bodies are matched with one another to mill a workpiece, so that the machining efficiency is improved.

The invention belongs to the technical field of communication component welding, and discloses a communication component welding tool which comprises a welding tool body, a limiting frame is fixedly connected to the top of the welding tool body, and the communication component welding tool further comprises a heat conduction energy storage power generation assembly. The communication component is fixed to the surface of the graphene vapor chamber through the welding tool, so that the graphene vapor chamber conducts high heat generated by welding of the communication component to the alloy phase change module, and the alloy phase change module stores the heat and provides the heat for the thermoelectric power generation module; the cold end radiator communicates with an external liquid nitrogen storage tank to provide a refrigerant for the thermoelectric power generation module, the thermoelectric power generation energy-saving effect is achieved, meanwhile, the graphene vapor chamber can preheat communication parts to be welded through the preheating copper plate, the temperature difference between a PCB and elements can be effectively eliminated through preheating, welding spot cracking or internal stress damage of the communication parts is avoided, and the welding quality of the communication parts is improved. And meanwhile, wet parts can be dried.

This application provides a charging method, which includes: determining the connection status between an electric vehicle and a charging device, and the connection status between the electric vehicle and an external liquid cooling device; and, based on the connection status of the electric vehicle and the charging device, sending an overcharge request message to the charging device, wherein the overcharge request message instructs the charging device to charge the electric vehicle at a first output power, the first output power being greater than or equal to a preset power. The charging method provided by this application enables the charging device to charge the electric vehicle at high power while the external liquid cooling device cools the electric vehicle by transferring a liquid cooling medium to it. This helps meet the heat dissipation requirements of the electric vehicle's power battery during high-power charging, allowing the electric vehicle to be charged at high power and reducing the charging time.

The invention discloses an angle-variable and self-revolution wafer base device, and belongs to the technical field of wafer bases, the angle-variable and self-revolution wafer base device comprises a revolution base, a gear carrier is fixedly connected to the center of the top of the revolution base, and a base is arranged above the gear carrier. According to the cooling device, an external liquid supply device conveys cooling water into the connecting base through a cooling water inlet pipe, inclined blades in the connecting base drive a driving shaft and a double-end protruding block to rotate, a sliding block drives an annular gear and a cooling disc to rotate through a rack, and the rotating cooling disc centrifugally throws out the cooling water; a uniform and dead-corner-free cooling water curtain is formed, the rotation shaft and the adjusting shaft are completely wrapped, the cooling uniformity of the peripheral side of the shaft body is ensured, stable and efficient heat exchange is achieved, sprayed cooling water can cool the revolution seat and the gear carrier at the same time, the influence of the high temperature in the reaction cavity on the device is reduced in an auxiliary mode, and the reaction efficiency is improved. And the operation reliability and the overall performance of the device are obviously improved.

The invention relates to the related technical field of medical instruments, in particular to a contrast injection device for enhancing nuclear magnetic resonance, which comprises a base, a mounting shell arranged at the upper part of the base, a first barrel arranged at the left upper part in the mounting shell, a second barrel arranged at the right upper part in the mounting shell, and a mixing barrel arranged in the middle of the upper part of the mounting shell, a first piston rod is arranged in the first barrel, a second piston rod is arranged in the second barrel, communicating pipes are respectively communicated between the first barrel and the mixing barrel and between the second barrel and the mixing barrel, a one-way water inlet pipe is arranged at the top of the barrel, and the one-way water inlet pipe is communicated with an external liquid storage tank. By rotating the adjusting screw rod, the adjusting screw rod drives the first wedge-shaped block to move to the position of the needed dosage, then the rodless air cylinder controls the extrusion plate to move upwards, and after the extrusion plate moves upwards and makes contact with the plate body, the piston rods move upwards to inject the contrast agent and normal saline of the corresponding dosage into the mixing barrel to be mixed.

The utility model discloses an electric spindle and a numerical control machine tool applying the same, the electric spindle comprises a compression ring assembly, a shaft core, a bearing, a bearing seat and a shaft sleeve, the compression ring assembly is sleeved outside the shaft core, the compression ring assembly and the shaft core are in threaded connection, the bearing is sleeved on the shaft core, and the end face of the bearing abuts against the end face of the compression ring assembly. The bearing seat is arranged outside the pressing ring assembly and the bearing in a sleeving mode and connected with the shaft sleeve arranged on the shaft core in a sleeving mode. According to the utility model, the compression ring assembly and the shaft core are connected into a tight whole through threaded connection, so that cutting fluid cannot permeate; certainly, cutting fluid is prevented from entering, the interior of the motorized spindle can be effectively sealed through threaded connection, invasion of other media such as external liquid, gas and dust is prevented, and it is guaranteed that the working environment of the motorized spindle meets the requirement. The electric main shaft provided by the utility model adopts excellent sealing performance of threaded connection, can effectively prevent cutting fluid from entering the main shaft cavity, and improves the safety and reliability of the electric main shaft.

The utility model discloses a control switch and a vehicle. The control switch comprises a shell, a mounting frame, a key assembly and a switch assembly, and a mounting hole is formed in the shell; the mounting frame is connected with the shell and defines a mounting space, the mounting hole communicates with the mounting space, and the mounting frame is used for blocking an opening where the mounting hole communicates with the mounting space; at least part of the key assembly is arranged in the mounting hole in a penetrating manner and can slide in the mounting hole; the switch assembly is arranged on the installation frame and located in the installation space, and a waterproof piece is arranged on the switch assembly and located in the installation space. According to the control switch provided by the invention, the waterproof piece covers the switch assembly, so that external liquid can be prevented from entering the switch assembly to cause short circuit, and the control switch can be used in severe environments such as humid environments and dusty environments, so that the service life of the control switch is prolonged, and accidents are prevented.

The invention relates to the technical field of heat exchangers, and provides a sulfide production heat exchanger which comprises a shell, end covers are fixedly connected to the two ends of the shell, an outer liquid outlet pipe is fixedly connected to the upper portion of the left end cover, an outer liquid inlet pipe is fixedly connected to the lower portion of the right end cover, and a driving motor is fixedly installed on the right side of the right end cover. An output shaft of the driving motor is fixedly connected with a transmission shaft, the middle of the transmission shaft is in threaded connection with a threaded sleeve, the curved surface of the threaded sleeve is fixedly connected with a moving plate, a plurality of scraping rings are fixedly installed in the moving plate, a stirring mechanism is installed on the right side of the threaded sleeve, and a scraping plate is fixedly installed at the left end of the transmission shaft. According to the technical scheme, the problems that the overall heat transfer performance of the heat exchanger becomes poor, the stability and efficiency of the technological process are affected and it is difficult to ensure that heat can be evenly transferred from a hot medium to a cold medium due to the fact that existing dissolved substances are separated out and deposited on the pipeline wall and thermal resistance is increased along with the increase of the thickness of a scaling layer are solved.

The utility model discloses a poultry vaccination marking mechanism which comprises an ink jet mechanism, the ink jet mechanism is flat and hollow and is connected with an external liquid pump through a hose, one side of the ink jet mechanism is provided with a nozzle, the other side of the ink jet mechanism is rotatably provided with a limiting ball, one end of the limiting ball is connected with a connecting mechanism through a connecting rod, and the other end of the limiting ball is connected with the connecting mechanism. The input end of the liquid pump is connected with an ink box containing marking ink through a pipeline, and the output end of the liquid pump is connected with the ink jetting mechanism through a hose. The trigger switch of the liquid pump can be linked with the vaccine injector, when the vaccine injector is started to inject vaccines once, the liquid pump operates once, a certain amount of ink is sprayed to feathers on poultry bodies, and the ink-jet mechanism is linked with the vaccine injection mechanism to inject the vaccines into the feathers. Meanwhile, the poultry feather marking device is small and exquisite in design, light, simple in structure, low in use and maintenance cost and suitable for small-scale poultry breeding.

The invention relates to the technical field of rehabilitation nursing, and discloses a disposable temperature monitoring proportioning hip bath system which comprises an inner barrel and an outer barrel, the inner barrel contains hip bath liquid, the top of the outer barrel is fixedly connected with the lower surface of the top of the inner barrel, and temperature control heat conduction liquid is contained in a closed space formed between the outer barrel and the inner barrel. A temperature monitoring module is arranged on the inner side wall of the inner barrel and used for collecting hip bath liquid temperature data in real time; the proportion adjusting module is connected with an external liquid medicine storage container and a water source and can control the injection amount of liquid medicine and clear water according to preset proportion parameters, and liquid is mixed into the inner barrel. A liquid level detection module in the inner barrel is responsible for monitoring the liquid level height of liquid; a heating temperature control module is embedded in the inner wall of the outer barrel, is in contact with the temperature control heat conduction liquid and is used for heating and controlling the temperature; and the control module is electrically connected with the modules respectively. Through cooperation of multiple modules, precise regulation and control of the hip bath liquid temperature, automatic blending of liquid medicine in proportion and stable maintenance of the liquid level are achieved.

The invention discloses an air pressure liquid level meter, a liquid storage device and plant protection equipment. The first waterproof pipe is communicated with the air pressure sensor; the inner pipe diameter of the air guide pipe is larger than that of the first waterproof pipe, one end of the air guide pipe is communicated with the air pressure sensor through the first waterproof pipe, and the other end of the air guide pipe is used for extending into liquid to sense water pressure. The air guide pipe and the air pressure sensor can be communicated through the first waterproof pipe, and when external liquid enters the air pressure sensor through the end, away from the air pressure sensor, of the first waterproof pipe, the liquid easily forms a water column in the first waterproof pipe under the action of liquid tension; the water column can isolate the space between the barometric sensor and the first waterproof pipe from the outside, which is equivalent to forming plugging and preventing air between the barometric sensor and the first waterproof pipe from being discharged, and when the pressure of external liquid is balanced with the pressure of air in the first waterproof pipe, the liquid cannot continuously enter, so that the waterproofness of the barometric sensor is realized.

The invention discloses a noise-reducing easily-cooled magnetic drive pump structure which comprises a motor, a driving shaft is assembled in the middle of the output end of the motor, the driving shaft is fixedly sleeved with an outer magnetic sleeve, a plurality of outer magnetic rotors are circumferentially arranged on the inner surface of the outer magnetic sleeve at equal intervals, an isolation sleeve is arranged in the outer magnetic sleeve, and the diameter of the isolation sleeve is smaller than the inner diameter of the outer magnetic sleeve. An inner magnetic sleeve is arranged in the isolation sleeve, a spiral pipe is arranged in the inner magnetic sleeve, the spiral pipe is arranged around the sleeve, and the spiral pipe does not make contact with the sleeve. Cooling liquid absorbs heat from the spiral pipe and then enters the deluge pipe through the output pipe to be sprayed, the closed circulation system can effectively transfer heat inside the magnetic drive pump to the external liquid tank environment, heat is continuously generated when the magnetic drive pump operates, and the circulation mechanism ensures that the heat can be continuously transferred, so that the service life of the magnetic drive pump is prolonged, and the service life of the magnetic drive pump is prolonged. And the temperature in the magnetic drive pump is maintained in a proper range, so that the stable operation of the magnetic drive pump is ensured.

The invention provides a detection assembly and a blood gas analysis system. The detection assembly comprises a first liquid path, a second liquid path, a liquid inlet, a liquid outlet and a valve assembly, one end of the first liquid path is communicated with the liquid inlet, and the other end is communicated with the liquid outlet; one end of the second liquid path is communicated with the liquid inlet, and the other end is communicated with the liquid outlet; the valve assembly is located at the liquid inlet, the liquid outlet and / or between the liquid inlet and the liquid outlet, and can be switched between a first conduction state and a second conduction state; in the first conducting state, first external liquid can flow into the first liquid path from the liquid inlet and can flow out of the first liquid path from the liquid outlet; and in the second conducting state, second external liquid can flow into the second liquid path from the liquid inlet and can flow out of the second liquid path from the liquid outlet. According to the detection assembly and the blood gas analysis system provided by the invention, a reference solution does not need to be preset in the detection assembly in advance through the structural arrangement, so that the size of the detection assembly can be reduced, and the problem that the reference solution is out of date due to long-term non-use of the reference solution is avoided.

The invention discloses a micro-channel reactor for chemical engineering and a reaction method, and relates to the field of micro-channel reactors, the micro-channel reactor comprises a micro-channel reactor main machine, a plurality of groups of micro-channel reaction modules are arranged in the micro-channel reactor main machine, the number of each group of micro-channel reaction modules is two, and the micro-channel reaction modules are arranged in the micro-channel reactor main machine. A liquid inlet pipe and a liquid outlet pipe are arranged in the micro-channel reactor main machine, and the liquid inlet pipe is connected with an input pipe. It needs to be explained that in the embodiment of the invention, when one micro-channel reaction module is blocked, the liquid and the heat-conducting medium are integrally replaced into the other micro-channel reaction module, so that uninterrupted reaction is realized, and the reaction effect is ensured; besides, when the liquid enters the pretreatment box, the liquid is pre-filtered by a filter cover, so that the blockage of the micro-channel reaction module is further avoided, and when the filter cover is blocked, the filter cover can be automatically switched to realize continuous liquid feeding, so that the continuous operation of the equipment is further ensured.

The present invention discloses a multi-functional compact radiator, which includes a main radiator liquid chamber, a radiator core body, and a secondary radiator liquid chamber; the main radiator liquid chamber includes a first main radiator liquid chamber and a second main radiator liquid chamber. Both the first main radiator liquid chamber and the second main radiator liquid chamber are connected to the radiator core body. The first main radiator liquid chamber is connected to the radiator inlet pipe, and the second main radiator liquid chamber is connected to the radiator outlet pipe; on the side of the second main radiator liquid chamber away from the radiator core body, there is provided the secondary radiator liquid chamber. A two-way pressure regulating valve is provided on the secondary radiator liquid chamber. A main exhaust and liquid stabilizing pipe connecting the second main radiator liquid chamber and the secondary radiator liquid chamber is provided inside the secondary radiator liquid chamber. An external liquid outlet pipe is provided on the secondary radiator liquid chamber. The radiator has the advantages of simple structure, small occupied space, light weight, and compact structure.

The invention discloses a silicon wafer polishing head pressure real-time adjusting system, which relates to the technical field of silicon wafer polishing, and comprises a shell which is arranged at the output end of polishing equipment, and the upper end surface of the shell is provided with a rotary joint; the separation disc is fixed in the shell and divides the interior of the shell into a liquid storage bin and a cooling bin from top to bottom, and the liquid storage bin is communicated with external liquid supply equipment through a rotary joint; the fixed disc is fixed in the cooling bin; the multiple micro pump valves are fixed to the upper end face of the fixing disc and communicate with the liquid storage bin through pipelines; the controller is fixed on the fixed disc and is electrically connected with the plurality of micro pump valves; the partition adjusting assembly is fixed to the lower end face of the cooling bin; the limiting ring is vertically arranged on the lower end face of the shell in a sliding mode and communicates with the micro pump valve through an adjusting pipe. The silicon wafer is installed on the lower end face of the partition adjusting assembly and located in the limiting ring.

The application discloses a three-form bidirectional sealing structure, relates to the technical field of sealing, and solves the problems that in the prior art, the two sides of sealing are different media, the two sides of media are prohibited from being mixed, if the media are connected in series, the product performance is affected, under high-temperature weather conditions, there is thermal expansion phenomenon, under rain and snow weather conditions, external liquid flows into the product, and under bad environment, wind sand and dust invade, which can cause adverse effects on the product, and the specific scheme is as follows: a three-form bidirectional sealing structure, comprising a shaft and an end cover, the end cover is arranged on the circumferential side of the shaft, a sealing ring is arranged between the end cover and the shaft, a felt is arranged between the end cover and the sealing ring, the sealing ring body extends in the axial direction to form a medium sealing ring on the two side surfaces of the end cover, a plurality of protrusions are arranged on the medium sealing ring, a plurality of recesses are arranged in parallel at the positions corresponding to the protrusions of the end cover, and the recesses and the protrusions are in clearance fit to form a labyrinth seal and a non-contact clearance seal.

The utility model provides a waterproof bearing assembly with high sealing performance, which relates to the technical field of bearings and comprises a concave ring, a convex ring is arranged on the inner wall of the concave ring, the inner wall of the concave ring is matched with the outer side of the convex ring, a protective cover is arranged on the top side of the convex ring, the top side of the convex ring is in contact connection with the inner side of the protective cover, and the inner side of the protective cover is provided with a waterproof layer. An inner ring is arranged on the bottom side of the concave ring, and an inner ring and an outer ring are arranged on the bottom side of the concave ring. When liquid enters the space between the concave ring and the convex ring, due to the fact that the labyrinth between the concave ring and the convex ring is large, the liquid can be influenced by multiple times of direction changing in the flowing process, the flow speed of the liquid is slowed down, the liquid can be prevented from rapidly passing through the connecting position, and the leakage risk is reduced; liquid invasion can be effectively resisted, and the overall sealing performance is enhanced. The sealing performance can effectively prevent external liquid from intruding into the bearing, and normal operation of the bearing is protected.

The present application relates to a kind of cleaning equipment for electrode sheet production, comprising: box body and box cover, positioning frame, positioning mechanism, shift loading module and clamping module, spray module and jacking module.The electrode sheet to be cleaned is positioned and installed on the positioning frame by the present application, and the electrode sheet to be cleaned is further clamped and positioned by the positioning mechanism, so that the soft electrode sheet material can be unfolded and positioned on the positioning frame, avoiding the electrode sheet to be cleaned to be folded down, causing the residual cleaning of liquid medicine, the shift loading module drives the clamping module to clamp the external liquid storage box to be cleaned and the liquid storage cover to be cleaned, the jacking module drives the spray module to move vertically reciprocatingly, the spray module atomizes and cleans the electrode sheet, and the liquid storage box and the liquid storage cover are high-pressure sprayed and cleaned.The atomized water generated when high-pressure spray head cleans the liquid storage box or the liquid storage cover further cleans the electrode sheet, and the present application can simultaneously clean the electrode sheet, the liquid storage box and the liquid storage cover, effectively improve the cleaning efficiency, and further improve the production efficiency.

The invention provides a cabin door sealing device of a main hull and superstructure elastic connection transition area, which comprises a main hull, a superstructure and a transition area, the transition area is positioned between the main hull and the superstructure, and the cabin door sealing device is characterized in that a door opening structure is arranged on the main hull; a first opening is formed in the position, corresponding to the door opening structure, of the superstructure, the door opening structure penetrates through the first opening, and a cabin door is installed on the door opening structure; a sealing assembly is arranged at the joint of the main hull and the external structure of the superstructure and used for preventing an external liquid medium from entering the transition area. The cabin door is installed on the door opening structure penetrating through the first opening, so that the cabin door does not make direct contact with the superstructure, and the relative displacement between the main ship body and the superstructure does not affect the cabin door only installed on the main ship body; meanwhile, external liquid media are prevented from entering the transition area through the sealing assembly.

The utility model provides a liquid removing device externally arranged on a silicon tetrachloride vaporizer, and aims to solve the technical problem that liquid is contained in a medium after silicon tetrachloride is vaporized in the prior art. The liquid removal device comprises: a tank body having an inlet, an outlet and an inspection port; the defoaming net is arranged in the middle of the tank body and located between the inlet and the outlet, and the interior of the tank body is divided into two spaces by the defoaming net; the blind plate covers the inspection opening; wherein the inlet is located at the bottom of the tank body, and the outlet is located above the inlet. The inlet of the tank body is connected with the outlet of the vaporizer, a medium obtained after vaporization of silicon tetrachloride needs to penetrate through the defoaming net, and liquid carried in the medium can be separated through the defoaming net. Besides, the inlet of the tank body is arranged at the bottom of the tank body, so that the separated liquid can fall into the vaporizer again under the influence of gravity for vaporization. According to the technical scheme, the influence on the production quality of polycrystalline silicon in the reduction furnace can be avoided, and the production energy consumption of the polycrystalline silicon is reduced.

The present disclosure provides a cleaning device, a control method of the cleaning device and a cleaning system. The liquid path system in the cleaning device comprises a clean water box, a first path and a second path. The clean water box is provided with a first liquid outlet and a second liquid outlet, the first liquid outlet is lower than the second liquid outlet. The first path is provided with a first inlet and a first outlet, the first outlet is used for the liquid in the clean water box to flow out of the first path, and a first power device is used for providing driving power to discharge the liquid in the clean water box out of the first path. The second path is provided with a second inlet and a second outlet, the second outlet is used for the liquid in the clean water box to flow out of the second path. In the state of wiping the surface to be cleaned, the first power device drives the liquid in the clean water box to flow into the first path from the first liquid outlet and flow out of the first outlet to supply the liquid to the cleaning element. In the state of washing the cleaning element, when the clean water box is supplied with liquid by an external liquid source of the clean water box so that the liquid level of the clean water box exceeds the second liquid outlet, the liquid in the clean water box overflows from the second liquid outlet to the second path and flows out of the second outlet to discharge the liquid to the cleaning element to wash the cleaning element.

The invention provides a positive pressure protection system and method suitable for a camera module, and aims to solve the problem that external liquid invades due to the fact that the overall airtightness of the module is weakened due to the fact that a movable cleaning structure is installed in a penetrating mode. By actively constructing and maintaining the positive pressure environment in the protection area of the camera module, the safety of the environment in the camera module in the function operation process is guaranteed, the sealing performance attenuation of a penetratively mounted movable structure can be effectively dealt with, and leakage and short circuit damage caused by the movement of the related movable structure are avoided.

The utility model provides a fresh bamboo juice extraction device which comprises an extraction box, a water storage tank is arranged on the ground on the outer side of the extraction box, a water outlet pipe of the water storage tank is connected with an evaporator, an auxiliary material pipe is arranged on the evaporator, and an outlet of the auxiliary material pipe is connected with an inner cavity of the extraction box; a negative pressure pump is arranged on the ground on one side of the water storage tank, a negative pressure pipe is connected to the negative pressure pump, and an outlet of the negative pressure pipe is connected with an inner cavity of the extraction tank; fans are installed on the side walls of the two sides of an inner cavity of the extraction box, heating pipes are installed on the outer sides of air outlets of the fans, and a liquid outlet is formed in one end of the bottom of the extraction box and connected with an external liquid collecting pipe; a condenser pipe is arranged at the bottom of the inner cavity of the extraction box, and a condenser is arranged on the ground on the other side of the water storage box and is connected with the condenser pipe. After the scheme is adopted, the structure is reasonable, the evaporation extraction effect is good, and the efficiency is high.

The embodiment of the utility model provides a battery device, a power utilization device and a manual maintenance switch. The battery device comprises a battery monomer, a box body and a manual maintenance switch. The case accommodates the battery cells. The manual maintenance switch comprises a first mounting seat and a cover body, the first mounting seat is connected to the box body, the cover body is connected to the first mounting seat in a pluggable mode, and the cover body and the first mounting seat jointly define a cavity. The manual maintenance switch further comprises a one-way valve, the one-way valve is arranged on the first installation base and / or the cover body, and the one-way valve is configured to allow gas in the cavity to be discharged out of the cavity. Therefore, in the process that the cover body is inserted into the first mounting seat, gas in the cavity is discharged from the through hole through the one-way valve, so that the internal pressure and the external pressure of the cavity are balanced, the cover body can be smoothly inserted into the first mounting seat, and the one-way valve can also prevent external liquid, impurities and the like from entering the cavity.

The present invention relates to the field of micro-machining technology, and in particular, provides an ultrasonic vibration internal liquid electrochemical discharge grinding processing device and a tool changing method. The method includes a processing device including an old tool holder, a new tool holder, an electric spindle, a spindle clamp, an auxiliary electrode, a processing workpiece, an electrolyte tank, a Hall current sensor, an automatic tool changing device; an ultrasonic generator, a frequency converter, a high-frequency pulse power supply, a data acquisition device, an external liquid supply device, a programmable frequency converter, a tool changing operating system, and a position control system; wherein the tool holder includes a primary coil, a secondary coil, an ultrasonic transducer, a rotary liquid joint, and a tool electrode. The processing device integrates the three technologies of ultrasonic vibration, mechanical grinding, and external rotation and internal liquid through the ultrasonic transducer, the tool electrode, and the external liquid supply device. While ensuring processing efficiency, it improves the continuity and stability of processing, improves processing quality, and achieves high-quality, high-efficiency, and low-cost processing of processing materials.

The utility model discloses a kind of capacity expansion waterproof travel bags, it is related to travel bag technical field, including main bag body and the capacity expansion bag being set to its side face. Capacity expansion bag edge is connected with main bag body by waterproof sealing strip, and it is formed plane seal in the contraction state by relying on self elasticity close main bag body, effectively reduce space occupation and isolate external liquid;Capacity expansion bag bottom is equipped with drain hole, can be actively exported bag in liquid accumulation, cover sleeve being set at bag mouth is fixedly connected with main bag body, and bag mouth is sealed by elastic deformation compression. The device forms combined waterproof barrier by lateral isolation of waterproof sealing strip, top sealing of cover sleeve and bottom flow guide of drain hole, realizes the physical separation of dry and wet articles and water accumulation autonomous discharge, solves the pain point that wet umbrella and other humid articles pollute luggage in rainy day, improves the functionality and environmental adaptability of travel bag.

The utility model discloses a hydraulic machine cleaning assembly, which belongs to the technical field of cleaning assemblies, and comprises a support rod and a nozzle, a liquid through hole in the support rod is communicated with an external liquid supply device, and the nozzle is slidably mounted at the end along the axial direction of the support rod. A liquid storage cavity is formed in the nozzle, a first water outlet is formed in the end part, a second water outlet is formed in the annular surface, the nozzle has at least two positions on the supporting rod, liquid can be sprayed from the first water outlet and the second water outlet respectively, and different parts of the hydraulic machine can be cleaned in a targeted manner. A flow guide column is fixed to the end of the supporting rod and connected with a sealing column through a connecting rod, and different water outlets are opened and closed through position changes of the sealing column. The diameter of the connecting rod is smaller than that of the diversion column and the sealing column, an annular groove is formed and matched with the first water injection hole of the diversion column and the second water injection hole of the sealing column, and the liquid flowing path is optimized. A plurality of water injection holes are uniformly formed, so that the liquid is uniformly distributed, and the cleaning effect is improved.

The application relates to the field of washing products, and provides a processing method of a high-altitude natural soda washing product based on a non-ionic surfactant, which comprises the following steps: preparing a washing liquid by using a quantitative feeding and stirring device, wherein the quantitative feeding and stirring device comprises a base, a stirring box and a recovery box, the stirring box is fixedly connected to the top wall of the base, a transmission cavity one and a stirring cavity are formed in the stirring box, a driving mechanism is arranged in the transmission cavity one, a stirring mechanism is arranged in the stirring cavity, a quantitative feeding mechanism is arranged on the stirring box, two or more recovery cavities are formed in the recovery box, the recovery box is connected to the base, a liquid supply pipe and a discharge valve are connected to the inner wall of the stirring cavity, the liquid supply pipe is connected to an external liquid supply device, and a heating device is arranged in the stirring cavity. The application can improve the production efficiency and automation degree of the washing liquid, and the produced washing liquid has the advantages of environmental protection, mildness, strong decontamination, and strong economy.