216results about How to "Efficient discharge" patented technology

This invention relates to the technical field of fire hydrants and discloses an intelligent fire hydrant with water consumption monitoring function, comprising: a hydrant end cap at the upper end of the hydrant body assembly, and an equipment assembly installed inside the hydrant end cap; a transparent detection window on the hydrant body assembly, a rod inside the transparent detection window, a central rotating shaft installed on the inner side of the transparent window assembly, and a rotating scraper on the central rotating shaft; the rod can detect the water level in the hydrant body in real time, and the rotating scraper can clean the dirt on the surface of the transparent window assembly; this invention, through the coordinated linkage structure of the float, rod, and float plate inside the transparent detection window, combined with the visual observation slot design of the transparent window assembly, realizes real-time accurate monitoring and intuitive visual feedback of water consumption in the fire hydrant, effectively solving the technical pain points of traditional fire hydrants lacking convenient monitoring methods and having difficulty in accurately controlling water consumption.

The utility model discloses an axial dust collection integrated motorized spindle which comprises a motorized spindle body, the motorized spindle body is provided with a dust collection structure, a fan structure and an automatic tool changing structure, the fan structure comprises a brushless motor and a centrifugal blade assembly, the brushless motor drives the centrifugal blade assembly to rotate to form airflow, and wood chips and dust are sucked and discharged from the dust collection structure; the automatic tool changing structure comprises a lifting air cylinder, the dust collection structure comprises a dust collection cover, and the lifting air cylinder drives the dust collection cover to move axially when the motorized spindle changes tools. The motorized spindle integrates dust collection, cooling and automatic tool changing functions, and the problems that in the prior art, the dust collection effect is poor, energy consumption is high, the occupied space is large, and cost is high are solved.

The utility model belongs to the technical field of natural gas connecting pipelines, and discloses a natural gas long-distance pipeline accumulated liquid discharging device which comprises a natural gas pipeline, a collecting box and an extruding mechanism, and a liquid discharging opening is formed in the bottom of the natural gas pipeline. The collecting box is communicated with the liquid discharging opening, a liquid discharging channel is arranged at the bottom of the collecting box, and accumulated liquid in the natural gas pipeline enters the collecting box through the liquid discharging opening; the extrusion mechanism comprises a driving assembly and an extrusion plate, the extrusion plate is movably arranged in the collecting box in the vertical direction, and the output end of the driving assembly is in transmission connection with the extrusion plate and used for driving the extrusion plate to reciprocate in the collecting box in the vertical direction, so that pressure is applied to the accumulated liquid in the collecting box, and the accumulated liquid is forced to flow out through the liquid discharging channel; accumulated liquid can be effectively discharged in an extrusion mode, accumulated liquid residues are avoided, when the pressure difference does not reach a discharge critical value, the accumulated liquid can be timely and effectively discharged, corrosion to a pipeline caused by long-term retention of the accumulated liquid is avoided, the leakage risk of the pipeline is reduced, and the service life of the pipeline is prolonged.

The utility model discloses a link communication device, and the device comprises a lower housing which is integrally provided with side plates at two opposite sides; the fixed plate is fixedly connected to the side plate; the first fan is fixedly connected to the fixing plate and located on the side, away from the side plate, of the fixing plate. The switching power supply is fixedly connected to the lower shell, and a second fan is arranged on the surface of the switching power supply; wherein heat dissipation holes are formed in the side plates in a penetrating mode, and heat in the device sequentially passes through the first fan, the second fan and the heat dissipation holes to be discharged.

This invention discloses an integrated FFC (Frost-Coupled Cable) machine utilizing three-in-one technology, comprising a placement bracket and a cutting assembly. The cutting assembly is located on the upper side of one side of the placement bracket. The cutting assembly includes a frame and a fixed bracket. One or more rollers are provided on the side of the frame. One or more grooves are provided on the surface of the rollers, and a cutter is installed within each groove. A cavity is provided inside the roller, and a connecting pipe is provided on the roller to connect to the cavity. The cavity and the groove are electrically connected. An exhaust pipe is installed on the fixed bracket, and the other end of the exhaust pipe is installed inside the connecting pipe. A drive assembly connecting the rollers is provided on the frame. This invention achieves efficient cutting of FFC cables by providing one or more rollers on the side of the frame and one or more grooves on the surface of the rollers, with cutters installed within the grooves. After adjusting the roller spacing and groove spacing, the cutter rolls on the FFC cable to cut the area requiring cutting. Simultaneously, multiple rollers can roll on several FFC cables at the same time, achieving efficient cutting of the FFC cable.

The invention belongs to the technical field of flat mops, and particularly discloses a clean-dirt separating and cleaning method of a flat mop, which comprises the following steps of: supplying clean water: pumping clean water in a clean water tank into a clean water cavity by a clean water pump, converging the clean water in a water outlet cavity after shunting, sucking the clean water by a water sucking cloth strip, and permeating the clean water to mop cloth to quantitatively supply the clean water to the center of a flat mop head; sewage on the ground enters from the side end of the flat mop head and is sequentially absorbed by the mop cloth and the water absorption cloth strips, then the sewage pump is used for vacuumizing and absorbing the sewage, the sewage absorbed by the side end of the water absorption cloth strips is absorbed into the water absorption cavity, then the sewage enters the sewage cavity and is finally absorbed into the sewage tank, and the sewage at the side end of the flat mop head is sucked out. By optimizing the path and mechanism of clean water supply and sewage discharge, quantitative supply of clean water in the center of the cleaning face of the flat mop head in the length direction of the flat mop head and efficient and thorough discharge of sewage from the side end of the flat mop head are achieved, sewage purification separation type cleaning is achieved, and the cleaning effect, efficiency and sanitation degree of the flat mop are improved.

The utility model provides an expandable high-comfort safety helmet which comprises a helmet body, a first expansion support arranged on the outer side of the helmet body, a first connecting assembly arranged between the outer side of the helmet body and the first expansion support, a plurality of second expansion supports arranged on the first expansion support and a lighting module arranged on the first expansion support. By arranging the first expansion bracket and the plurality of second expansion brackets, different functional modules, such as a lighting module and an exhaust module, can be flexibly expanded according to actual requirements, so that the use requirements of the lamp in different scenes are met. The first connecting assembly enables the first expansion support to be detachably connected to the cap body, and adjustment and replacement can be conveniently carried out according to requirements. In addition, the exhaust module can effectively exhaust hot air in the cap body, and the wearing comfort is improved. The safety helmet has the advantages of being simple in structure, high in expansibility, suitable for various complex working environments, capable of meeting the requirements of different users and convenient to popularize and implement.

The utility model relates to the related technical field of pharmaceutical equipment, one embodiment of the utility model provides raw material decoction piece homogenization treatment equipment for preparing nerve soothing granules, the raw material decoction piece homogenization treatment equipment comprises a mixing tank and a support, the mixing tank is arranged in the support, an overturning mixing assembly is arranged in the mixing tank and the support, and a feeding and discharging assembly is arranged at the bottom of the mixing tank and the support; the turnover mixing assembly comprises a pair of central shaft brackets, the central shaft brackets are respectively fixed on the two sides in the bracket, the mixing tank is rotatably connected to the pair of central shaft brackets in a sleeving manner, an outer gear is arranged outside the mixing tank, a driving motor is arranged on one side of the bracket, a driving gear is arranged at the output end of the driving motor, and the driving gear is meshed with the outer gear. By means of the technical scheme, the technical problems that in the prior art, due to the fact that traditional equipment is often difficult to rapidly and evenly mix the raw materials, part of the raw materials are not evenly distributed, some light medicinal materials can be gathered at the top of the equipment, and heavy medicinal materials are precipitated at the bottom are solved.

The utility model discloses a sand core structure for casting a casting through hole, which belongs to the technical field of casting processing, and is technically characterized by comprising a first casting box and a second casting box arranged above the first casting box, and the first casting box is connected with the second casting box through bolts; the flowing path of a metal solution is prolonged through the design of the snakelike groove, the flowing speed is remarkably reduced, the gas entrainment risk caused by turbulent flow is reduced, the angle of the first positioning shell and the position of the discharging hopper can be rapidly adjusted through the arrangement of the sliding rail, the adjustable first supporting rod and the adjustable second supporting rod and the linkage design of the multiple clamping grooves, and the working efficiency is improved. The feeding port of the sand core body is accurately matched, gas in a cavity can be efficiently exhausted through the exhaust hole with the inclined angle and an active exhaust and multi-stage exhaust system of the exhaust fan, air holes are prevented from being formed, and therefore the surface smoothness and the internal compactness of a casting are greatly improved.

The invention relates to the technical field of battery heat insulation films, in particular to a hot-pressing vulcanization and film covering all-in-one machine for battery heat insulation films, which comprises a base, a processing box is fixedly mounted on the base, a silica gel frame is placed in the processing box, conveying mechanisms are symmetrically arranged on the inner wall of the processing box, and a film covering mechanism is arranged in the processing box. A pre-pressing mechanism and a vulcanizing mechanism are arranged on the outer side of the processing box, and the upper end of the processing box communicates with a rectangular material pipe used for feeding aerogel pieces. The film laminating mechanism is arranged, a horizontal sliding rail and a driving lead screw are used for driving a sliding platform and a silica gel frame to move synchronously, a rectangular pressing head is driven by an electric telescopic rod to complete jacking, cutting and hot-pressing attaching, the silica gel frame does not need to be stopped in the whole process, it can be guaranteed that a film and a window are accurately aligned, and the efficiency bottleneck of a traditional attaching stopping technology is avoided; in addition, cutting and attaching are integrated, the equipment structure is effectively simplified, and the production continuity and the automation degree are improved.

The utility model relates to the technical field of stirring equipment, the utility model provides a domestic appliance plastic accessory production raw material mixing machine, it includes the bottom plate, the top fixed coupling of bottom plate has the fixed plate, the top fixed coupling of fixed plate has the stirring jar, the top of stirring jar is provided with the jar cover, the bottom of stirring jar is provided with the stirring device, the bottom of stirring jar is provided with pressurized discharge device, the utility model still includes pressurized discharge device, pressurized discharge device includes the feed pipe, the feed pipe is fixedly connected in the inside bottom of stirring jar and is penetrated, the circumferential surface of feed pipe is fixedly connected with the pump body and is penetrated, through above technical scheme, solved the technical problem of uneven mixing and low efficiency of the mixing machine in the prior art.

This utility model relates to the technical field of electricity metering boxes, and discloses a modular electricity metering box, including a box body. A guide rail is fixedly connected to the outer wall of the box body, and a fixing block is fixedly connected to the outer wall of the box body. A buckle is rotatably connected between the fixing blocks. A handle is fixedly connected to the outer wall of the buckle, and a limit component is provided inside the buckle. A rotating rod is rotatably connected to the outer wall of the box body, and a baffle is fixedly connected to the outer wall of the rotating rod. A retaining strip is fixedly connected inside the baffle. A discharge hole is provided inside the box body. In this utility model, through the ingenious cooperation of components such as the rotating handle, buckle, rotating rod, and retaining strip, a convenient and secure connection between the boxes is achieved. At the same time, the reset and fixing mechanism formed by the spring and the baffle ensures that the box body is stable and reliable after connection, effectively avoiding loosening and separation caused by external forces, and improving the overall structural stability and safety.

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 invention relates to the field of intelligent operation and maintenance of power equipment, in particular to a transformer maintenance-free respirator control method integrating temperature, humidity and pressure monitoring and electric heating regeneration and a storage medium. The method comprises the following steps: firstly, deploying a sensor in the respirator, collecting humidity and internal temperature and pressure data of a drying agent, and obtaining accurate data after moving average filtering and temperature compensation; and the control module is combined with the data, a humidity threshold value dynamically adjusted along with the load rate of the transformer and a regeneration period to trigger the regeneration system to start. During regeneration, the electric heating piece heats the drying agent, the fan adjusts the rotating speed according to the real-time temperature and humidity to discharge steam, meanwhile, the moisture absorption capacity recovery rate is corrected by combining aging of the drying agent, and starting and stopping or temperature adjusting delay are conducted according to the standard condition. The process data is uploaded to the operation and maintenance cloud platform through the LoRa module encrypted by AES-128, and the platform analyzes the trend through weighted linear regression and gives an alarm; and operation and maintenance personnel optimize parameters according to the parameters and regurgitate a judgment link. Related programs are stored in the storage medium and can be executed by the processor to achieve the method, and support is provided for maintenance-free of the respirator.

This application provides a cooling mechanism for a molecular pump, including a base disposed at the bottom of the pump casing and fitted over the pump shaft. The base has a water-cooling channel and an air-cooling channel. The water-cooling channel surrounds the outer circumference of the pump shaft for the flow of cooling liquid; the air-cooling channel radially penetrates the base for the flow of cooling gas. In this molecular pump cooling mechanism, both the motor and the pump shaft are located at least within the base. The base simultaneously provides both water-cooling and air-cooling channels. The water-cooling channel allows for the flow of cooling liquid, while the air-cooling channel allows for the flow of gas. This enables simultaneous water and air cooling of the pump shaft and motor, achieving dual-effect cooling and improving the cooling efficiency of the pump shaft. Furthermore, placing the water-cooling and air-cooling channels on the base ensures the stability of the cooling channels, simplifies the installation of the cooling mechanism, and guarantees the operational stability of the cooling mechanism.

The utility model discloses a material return mechanism for environmental protection equipment, which comprises a hopper, the inside of the hopper is rotatably connected with a stirring frame, the outer side of the hopper is provided with a discharge port, the outer side of the discharge port is hinged with a protective plate, and the protective plate is fixed with the discharge port through a clamping lock. According to the device, wet garbage subjected to primary treatment and additives are transferred to the material port through the feeding port, an external driving component is in linkage with the stirring frame to rotate, so that normal operation of the material returning mechanism is guaranteed, after the sealing door is closed, fixing of the sealing door and the discharging port is achieved through a clamping lock, then the protection plate is turned over to be in lap joint with the outer surface wall of the sealing door, and the sealing door and the discharging port are closed. And the fastening rod penetrates through the lapping piece and is screwed with the protection plate, so that the protection plate is fixed, the protection plate is erected on the outer side of the clamping lock at the moment, protection of the connecting position of the sealing door and the discharging opening is achieved, and therefore the using stability of the whole material returning mechanism for the environment-friendly equipment is guaranteed.

The invention discloses a preparation method and application of a livestock breeding feed using fruit wine residues as raw materials, which are applied to the field of feed preparation, and aims to solve the problems of low resource utilization rate of fruit wine residues, waste of feed resources, low breeding benefits and the like. According to the method, fruit wine residues are pretreated and precisely compounded, a mineral adsorbent is added to optimize a structure so as to carry out mixing and tempering, multi-stage synergistic fermentation and dynamic regulation and control of a fermentation process, and intermittent stirring and weak forced ventilation are carried out during regulation and control; through the raw material classification and blending, the conditioning technology and the multi-stage synergistic fermentation technology, harmful gas emission in the fermentation process is effectively controlled, the stable fermentation environment is maintained, and the utilization rate of protein and microelements in the feed is remarkably increased; the fruit wine residues which are originally difficult to treat are converted into the high-quality livestock feed with balanced nutrition, so that wine brewing byproducts are turned into wealth, and the problem of environmental pollution caused by wastes is solved.

This invention relates to the field of functional filtration materials technology, specifically to a gradient interlocking knitted-woven composite filter cloth. It comprises a woven dual-pore structure superoleophilic and oil-guiding surface layer, a knitted three-dimensional fluffy structure superoleophobic filter core layer, a conductive electret transition layer with a textured surface that eliminates static electricity and adsorbs fine oil mist, and a woven continuous microgroove structure superoleophobic and oil-draining bottom layer. These four layers are composited from top to bottom, forming an interlocking weave structure. The pore size of the filter core layer decreases gradually from top to bottom, while the pore size of the oil-draining bottom layer increases gradually from top to bottom. The overall pore size of the filter cloth first decreases gradually from top to bottom, then increases gradually. This filter cloth achieves graded and precise filtration through multi-layer composite structure and gradient pore size design. The interlocking weave structure enhances the overall structural stability, while also possessing multifunctional properties such as directional oil guidance and drainage, conductive electret antistatic properties, and more.

The utility model discloses a medical grade pressure alleviation rest cabin, including cabin body, the inside of cabin body is provided with massage chair, the side wall of cabin body one side is fixed and is embedded with air intake cover, the sealed insertion slot of being adapted to filter material is seted up on the inner wall of air inlet pipe, and filter material is inserted in the inside of sealed insertion slot, and the side wall of filter material one side is fixed on the side wall of air inlet pipe one side through locating plate and fixed screw, and this design makes the installation and disassembly of filter material more convenient and fast, when filter material reaches the service life or needs to change, maintenance personnel can complete the operation fast, greatly shorten the equipment downtime, improve the operation efficiency and maintenance convenience of equipment, and the air induction component set up at the top of cabin can efficiently exhaust the turbid air in the cabin, and this air circulation renewal mechanism effectively maintains the freshness of the air in the cabin, avoids the problems such as peculiar smell, bacterial breeding caused by the non-communicating air, and provides a comfortable, healthy internal environment for the user.

The utility model relates to a lithium cell with safety protection performance for electric tool, including shell, the left side of shell top is equipped with ventilation opening, the inside bottom of shell is equipped with first limit board, the front side of first limit board extends and is equipped with the second limit board upwards, the rear side of first limit board top is equipped with third limit board, the inside top of shell is equipped with first exhaust groove, the inside bottom of shell is equipped with second exhaust groove, and the first exhaust groove is connected with second exhaust groove and has the exhaust duct, the left side rotation of exhaust duct is equipped with drive block, and the outside of drive block is hinged and has a plurality of exhaust fan, and the outside of exhaust fan all is equipped with slide rod. The utility model discloses through first ventilation hole, second ventilation hole and ventilation opening and so on many ventilation structures, forms double -flow channel heat dissipation path, makes internal heat can be quickly, effectively and discharged, avoids the accumulation of heat in the battery inside, effectively reduces the battery temperature, reduces the security risk of the high temperature.

This invention discloses a washing tower-type wastewater treatment device, relating to the technical field of domestic sewage treatment. The invention includes a treatment tower mounted on a support base, and further includes: an inlet assembly on the treatment tower, with a crushing component on the inlet assembly for crushing suspended solids in the wastewater; a treatment unit disposed inside the treatment tower, including a sedimentation assembly, a decomposition assembly, a transmission assembly, and an aeration assembly; and a filter assembly mounted on the support base. The advantages are: through the coordinated operation of the inlet assembly, sedimentation assembly, decomposition and transmission assembly, and aeration anti-clogging mechanism, this invention can break up impurities and prevent entanglement during the inlet stage, efficiently discharge sedimented impurities from the bottom of the tower, avoid packing material accumulation and caking, improve treatment efficiency, and also clean the aeration heads in real time to prevent pore blockage, ensuring stable and long-term operation of the equipment.

This invention relates to the field of filtration equipment, specifically to a fiber media filter. The tank contains multiple vertically spaced mesh panels, with fiber ball filter media positioned between adjacent mesh panels. A steel wire rope connects adjacent mesh panels. The bottom mesh panel is fixedly installed inside the tank, while the top mesh panel is connected to a drive component for vertical movement. The tank contains a rotating rod driven by a power unit and rotating around its own axis. The rotating rod vertically penetrates the multiple mesh panels. A rotating sleeve is vertically slidably mounted on the rotating rod between adjacent mesh panels, and actuating blades are fixedly mounted on the rotating sleeve. During backwashing of the fiber ball filter media, a first electric push rod retracts, causing the top mesh panel to move upwards. This, in turn, pulls the steel wire rope to widen the spacing between the multiple mesh panels, dispersing the fiber ball filter media between the mesh panels and preventing the multiple layers of fiber ball filter media from accumulating together.

Devices according to some embodiments generally include an elongate tubular member having a proximal end and an opposing distal end, and an inflatable balloon surrounding the distal end. The elongate tubular member includes an outer tube, a non-collapsible inner tube located inside the outer tube, and a compressible material located between the outer tube and the inner tube.

The invention relates to the field of survey sampling, in particular to a soil body sampling device and method for penetrating through a tunnel in a broken fault zone, the device comprises a supporting framework, a mounting base, a sampling component, a first driving component and a second driving component, the sampling component comprises a sampling pipe and a mandrel, and a spiral blade is arranged on the outer wall of the mandrel; the sampling pipe sleeves the outer side of the core shaft, the sampling pipe and the core shaft are rotationally connected to the mounting seat, the first driving part is used for driving the sampling pipe to move along the height direction of the supporting framework, the movement of the sampling pipe drives the mounting seat to slide along the slide way so as to drive the core shaft to move, and the second driving part can drive the core shaft to rotate. And the mandrel rotates to discharge the sample. The device is reasonable in structural design and simple and convenient to sample, the risk that soil falls off or is disturbed in the lifting and transporting process can be remarkably reduced in the sampling process, the collected soil sample can be easily and completely taken out, and meanwhile, redundant or residual soil can be efficiently discharged.

This utility model provides a chive cultivation device. The chive cultivation device includes: a cultivation box; a cultivation tray for planting chives, the cultivation tray being disposed on the cultivation box, the bottom of the cultivation tray having multiple ventilation holes; a draining plate, disposed inside the cultivation box, the draining plate having a filter cloth, the draining plate being located below the cultivation tray; a water holding tank, disposed inside the cultivation box, the water holding tank being located below the draining plate; and a storage box, the storage box being fixedly installed on the top of the cultivation box, the storage box having a partition fixedly installed inside, the partition dividing the storage box into a fertilizer storage chamber for storing organic liquid fertilizer and a water storage chamber. The chive cultivation device provided by this utility model can effectively separate excess water from the culture medium, realizing water recycling, and simultaneously cleaning and recycling the culture medium, avoiding waste of the culture medium.

The utility model provides a kind of integrated compartment house's advertisement and ventilation guide board belongs to advertising field, including mounting plate, the side of mounting plate is provided with folding support assembly, the side of folding support assembly is provided with ventilation component;The folding support assembly includes the first plate hinged to the side of mounting plate, the first plate one end is hinged with second plate, and the second plate one end is hinged with mounting bracket, the utility model will guide board be converted into integrated air treatment terminal, the directional introduction of external air is realized by external fresh air source, and efficient purification is completed in equipment inside, finally clean airflow is accurately released to guide board peripheral area, this design directly aims at the problem of hypoxia, stuffy of people flow dense closed space such as integrated compartment house, while providing guide service, actively improve local micro-environment air quality, significantly improve visitor's comfort.

This application relates to a self-drainage structure for a rotor installation pit. This application is applicable to the field of hydropower construction technology. The technical problem to be solved by this application is: to provide a self-drainage structure for a rotor installation pit. The technical solution adopted in this application is: a self-drainage structure for a rotor installation pit, comprising: an upper drainage hole formed between the installation pit and a construction support tunnel below the installation pit, the upper end of the upper drainage hole connecting to the bottom of the installation pit, and the lower end of the upper drainage hole connecting to the construction support tunnel; a middle drainage pipe disposed within the construction support tunnel, the upper end of the middle drainage pipe connecting to the lower end of the upper drainage hole, and the lower end of the middle drainage pipe extending to a drainage ditch at the bottom of the construction support tunnel; and a lower drainage hole formed between the construction support tunnel and a self-drainage tunnel below the construction support tunnel, the lower drainage hole connecting to a drainage ditch at the bottom of the construction support tunnel, and the lower end of the lower drainage hole connecting to the self-drainage tunnel.

The utility model provides a kind of vacuum thermal evaporation coating equipment, including base, vacuum chamber, upper cover, box, connecting column, vacuum pipeline;The base is equipped with sample stage, first vacuum pipe mouth, mounting lug;The sample stage is equipped with through-hole;The first vacuum pipe mouth is passed through the base, and it is located below the sample stage;The mounting lug is located in one side of the base;The vacuum chamber is equipped on the base;The upper cover is equipped with thermal evaporation source, it is suitable to be buckled with the vacuum chamber and form airtight space;The box is equipped below the base, and second vacuum pipe mouth is equipped on side wall;The vacuum pipeline is located in the box, one end is connected with the first vacuum pipe mouth, and the other end is connected with the second vacuum pipe mouth;The connecting column is rotatably connected with the upper cover in one end, and is connected with the mounting lug in the other end.The vacuum thermal evaporation coating equipment of the utility model can efficiently and sufficiently discharge gas in the vacuum chamber.

This utility model discloses a waterproof and dustproof high-pressure safety valve for gas, including a housing, a guide seat, a valve, a filter assembly, and a valve seat. The housing has an inlet at its lower end and an outlet along its circumference. This structure adopts a bottom-in, side-out approach, with multiple outlets to improve exhaust efficiency. The guide seat and valve are located inside the housing, with the guide seat slidably connected to the inner wall of the housing. The valve seat is located at the lower end of the housing, with the upper end of the valve corresponding to the lower end of the guide seat. The valve and valve seat slide in contact, and the lower end of the valve corresponds to the flow channel of the valve seat. An exhaust chamber is located inside the housing, connected to the outlet along the circumference of the housing. An elastic sealing ring is provided on the inner wall of the exhaust chamber. Through optimized structural design and sealing performance, this valve solves the problems of leakage and jamming that may occur with traditional safety valves in special environments, improving safety and service life, and providing a guarantee for the long-term stable operation of industrial equipment.