57results about How to "Increase air pressure" patented technology

The invention relates to the technical field of food storage, and discloses an emergency survival tank and a packaging method thereof.The emergency survival tank comprises a tank body and a cover body matched with the open end of the tank body, and the packaging method comprises the following steps that compressed food and a survival tool assembly are placed in a cavity of the tank body, and the tank body is placed in a vacuum chamber; the cavity containing the compressed food and the survival tool assembly is vacuumized until the cavity reaches a preset negative pressure state; when the cavity reaches a preset negative pressure state, inert gas and / or protective gas are / is filled into the cavity until the gas environment in the cavity forms a preset gas environment; the cover body is sealed at the opening end of the tank body, so that the closed space for maintaining the gas environment is formed in the cavity, and through the arrangement mode, the gas environment in the cavity can reach the preset gas environment, so that the fresh-keeping period of food in the preset gas environment can meet the requirement of the emergency survival tank for 3-5 years or even longer.

The utility model relates to the technical field of pesticide spraying, in particular to a pesticide spraying device which comprises a barrel body, straps are fixedly connected to the front side of the barrel body, a spraying pipe communicated with the interior of the barrel body is installed on the rear side of the barrel body, a flat plate is installed at the top of the barrel body, and a sealing cover is detachably connected to the top end of the flat plate. Through the arrangement of the pressurizing device, the first vertical plate, the second vertical plate, the crankshaft, the second connecting rod, the stirring blades, the telescopic cylinder, the handle, the third connecting rod, the positioning block and the first sliding rod, on one hand, the air pressure in the cylinder can be increased, and on the other hand, the pressure in the cylinder can be increased; on the other hand, a second connecting rod moves up and down to drive a crankshaft to rotate in a long circular hole and the inner side of a fixed seat, so that stirring blades stir the liquid medicine in the cylinder body, and the uniformity of the liquid medicine is ensured.

The utility model relates to a high-voltage plastic shell isolation switch. The high-voltage plastic shell isolation switch comprises a contact assembly and an arc extinguishing assembly. The contact assembly comprises a fixed contact and a moving contact, the fixed contact is fixedly arranged, the moving contact can be movably arranged relative to the fixed contact, and the moving contact and the fixed contact are electrically connected when being in contact; the arc extinguishing assembly comprises an arc extinguishing shell and gas generating parts, an arc extinguishing space is arranged in the arc extinguishing shell, the moving path of the moving contact is located in the arc extinguishing space, the two gas generating parts are located in the arc extinguishing space and arranged at intervals, the static contact and the moving contact are located between the two gas generating parts, and the spacing distance between the two gas generating parts is 8-12 mm. According to the scheme, when the moving contact and the static contact are disconnected, the exhaust speed is increased, airflow is equally divided, arc extinguishing is efficient, and then zero flashover is achieved.

The application relates to the technical field of planting devices, in particular to an automatic seedling taking and planting device for orchid planting, which comprises a moving mechanism, a seedling feeding mechanism, a seedling taking mechanism and a planting mechanism. The seedling feeding mechanism comprises a mounting groove arranged on the upper surface of a moving base and a mounting frame arranged on the inner wall of the mounting groove. The seedling taking mechanism comprises a fixed plate fixed on the upper surface of the moving base through a mounting frame and a rotating column rotatably arranged on the surface of the fixed plate. The seedling feeding mechanism, the seedling taking mechanism and the planting mechanism are arranged, so that the device can automatically take and plant in the actual use process. In the process that the rotating column is driven to rotate by the second motor, the reciprocating screw column is driven to rotate under the action of the two transmission wheels and the transmission belt, the reciprocating screw column drives the mounting frame to move laterally, and the clamping jaw can take the seedling from the seedling hole beside the seedling hole which has been taken.

The invention relates to the technical field of gas detection, in particular to a detection device for sulfur dioxide in air, which comprises a detection machine body, an active suction mechanism, a warning replacement mechanism and a suspension fixing mechanism, the active suction mechanism is arranged on the detection machine body, the warning replacement mechanism is arranged between a feeding shell and an air suction assembly, and the suspension fixing mechanism is arranged on the detection machine body. The suspension fixing mechanism is arranged between the threaded sleeve and the air suction assembly. According to the sulfur dioxide detection device, the suction fan is controlled to operate, so that the suction fan can generate suction force, the suction force can suck air through the suction nozzle, the air can flow into the inner side of the detection machine body through the suction nozzle, the filter screen, the connecting sleeve, the filter cotton piece and the threaded sleeve, and the detection machine body can detect sulfur dioxide in the air; and air can be quickly sucked by setting active suction, so that the detection efficiency of the detection machine body can be improved.

The invention relates to the technical field of filtering equipment, in particular to a membrane filtration assembly for filtering equipment, which comprises a mounting base, a filter element and a protective cover which are coaxially arranged are detachably mounted on the mounting base, the filter element is positioned in the protective cover, a first cleaning part is arranged on the mounting base, and a second cleaning part is arranged on the mounting base. And a second cleaning part cooperatively working with the first cleaning part is arranged on the protective cover. According to the invention, gas generated by the gas pump is conveyed into the protective cover, so that a water body in the protective cover generates violent disturbance under the driving of gas flow, and meanwhile, the gas pressure in the protective cover can be remarkably improved, so that a second sealing ball moves upwards in the liquid inlet pipe, and the second sealing ball does not close the liquid inlet hole when reaching the maximum movement stroke; the cleaning agent enters the protective cover from the liquid inlet hole, and the water body and the cleaning agent are mixed, so that the purpose of cleaning the filter element is achieved.

The utility model relates to the technical field of honey processing, and discloses a honey pouring-out device which comprises a honey taking tank, a honey discharging opening is formed in one side of the bottom of the honey taking tank, a containing groove is formed in one side of the top of the honey discharging opening, a cover plate is rotationally installed on one side of the containing groove through a hinge, and a first screw rod is rotationally installed at the bottom in the honey taking tank. A honey throwing assembly is mounted on the outer side of the first screw rod, and a pressurizing assembly is mounted at the top of the first screw rod. According to the technical scheme, the first screw rod and the second screw rod are rotated, along with continuous rotation of the first screw rod, the multiple sets of beehives can conduct centrifugal movement in the honey taking tank, honey in the beehives is thrown out, and due to the fact that the rotating second screw rod is in threaded connection with the sealing plug in the pressurizing box, the sealing plug can be pushed to move downwards continuously; the air pressure in the pressurizing box is extruded into the honey taking tank, so that the air pressure in the honey taking tank is increased, and the discharge of honey in the honey taking tank can be accelerated.

This utility model relates to the field of feedwater pump technology and discloses a boiler feedwater supply device using a two-phase steam-driven feedwater pump. It includes a base, on which a turbine body and a feedwater pump body are fixedly mounted. A coupling is fixedly mounted on the output shaft of the turbine body. An inner sealing flange and an outer fixed sealing flange are fixedly mounted on the top of the turbine body. A steam pipe is fixedly mounted on the top of the inner sealing flange. An outer sliding sealing flange is slidably connected to the outer wall of the steam pipe. A pressure regulating pipe and a connecting pipe are fixedly mounted on the outer wall of the steam pipe. A pressure regulating device is fixedly mounted on the outer wall of the connecting pipe. By connecting two connecting hoses to the inlets of two boilers, the feedwater pump body can transmit water to the inside of the two connecting hoses through a diversion pipe, thereby allowing the feedwater pump body to simultaneously supply water to the inside of two boilers, reducing equipment costs and subsequent maintenance costs.

The utility model discloses an exhaust system of an aluminum casting die, which comprises a gas guide tank, the bottom end of the gas guide tank is fixedly connected with supporting legs, the top end of the left side of the gas guide tank is fixedly connected with a gas inlet, the right side of the gas guide tank is fixedly connected with a gas outlet, and a reset structure for an automatic closing device is arranged in the gas guide tank. According to the exhaust system of the cast aluminum mold, the movable plug is arranged, after the exhaust system is connected with an exhaust channel of the cast aluminum mold, air in the mold is guided into the top end of the interior of the air guide tank through the air inlet, the movable plug can be pushed to descend after the air pressure of the top end of the interior of the air guide tank reaches a certain value, and after the movable plug descends, the air outlet communicates with the interior of the air guide tank; and after the air pressure is reduced, the spring quickly jacks the movable plug back to enable the movable plug to be attached to the bottom of the positioning ring, so that the device is automatically closed while the aluminum liquid is prevented from overflowing, and the problem of automatic opening and closing is solved.

The utility model relates to the technical field of instrument installation, in particular to a metallurgical instrument installation auxiliary device which comprises a metallurgical instrument positioning assembly and a fixing assembly. The fixing assembly comprises an adsorption cover, a sleeve and a sliding barrel are fixedly installed on the two sides of the adsorption cover respectively, the sliding barrel communicates with the inner side of the adsorption cover, a piston valve is slidably installed on the inner side of the sliding barrel, a connecting rod is fixedly installed on the side edge of the piston valve, a limiting groove is formed in the connecting rod, and a sealing cover is installed at the end of the sliding barrel in a threaded connection mode. A shaft seat is fixedly installed on the sealing cover, a rotating shaft is rotatably installed on the shaft seat, a torsion reset spring is fixedly installed between the rotating shaft and the shaft seat, a limiting deflector rod is fixedly installed on the rotating shaft, and the lower end of the limiting deflector rod is connected with the limiting groove in a clamped mode. According to the utility model, the metallurgical instrument positioning ring arranged in the middle can be relatively stably arranged on the outer side of a to-be-mounted position by virtue of a vacuum adsorption effect through the arranged fixing assembly, so that the subsequent instrument mounting work is facilitated.

The utility model discloses a tea leaf fixation machine with steam fixation function, it includes: fixation box and steam water tank, the inside of fixation box is fixedly connected with tea leaf storage box in department, the top middle part fixedly connected with drive motor of fixation box, the extension end fixedly connected with motor shaft of drive motor, the extension end fixedly connected with connecting rod of motor shaft, the bottom fixedly connected with stirring rod of connecting rod, one side of fixation box is provided with steam water tank, and the fixation box is fixedly connected with steam pipe between steam water tank, the outside of steam pipe all is equipped with heating wire, the inside fixedly connected with baffle in steam water tank department, the inside bottom both sides of baffle all are fixedly connected with heating pipe. Through electric telescopic link lowering, will be in contact with the recovery of gyro wheel, then two turnover board separates the tea of this time will pass the inclined drop to the inside of collection box, can conveniently take out the collection box, completes fixation operation.

The utility model relates to industrial manufacturing technical field discloses blast furnace inner raw fuel arrangement equipment, including base, the top fixedly connected with blast furnace of base, the outside fixedly connected with two L type support columns of blast furnace, the outside fixedly connected with two locating blocks of L type support column's left and right sides, the inside rotatory connection has bearing of each locating block, the outside of bearing is equipped with power assembly, power assembly includes connecting block a, the bottom fixedly connected with electric telescopic machine of connecting block a, the output fixedly connected with connecting block b of electric telescopic machine, the outside both sides rotatory connection has two connecting column a of connecting block b. In the utility model, when the raw fuel in the blanking cylinder reaches a certain amount, the output end of the electric telescopic machine starts to shrink, the connecting block a also rotates with the movement of the electric telescopic machine, the connecting column a rotates with the movement of the connecting block b, which makes the bottom plate start to rotate, thereby realizing quantitative feeding, reducing the overwaste of raw fuel and uneven feeding effect caused by continuous feeding, and improving the utilization rate and efficiency of the equipment.

The application discloses a kind of textile sewage multistage processing device and processing technology, belong to sewage treatment technical field, the application includes vertically placed processing cylinder, the upper end of processing cylinder is equipped with drive assembly, and drive assembly output end is equipped with the stirring rod of hollow structure;The inside of processing cylinder is fixedly installed with the collecting seat of annular structure, and the inside of collecting seat is elastically lifted and installed with primary filter screen, and primary filter screen and stirring rod are connected with key, simultaneously, the inside of lower part of processing cylinder is fixedly installed with baffle, and electromagnetic valve is installed in the middle position of baffle, and the elastic cylinder that can be elastically twisted is fixedly connected between primary filter screen and baffle.The textile sewage multistage processing device and processing technology can carry out multistage effective filtration to sewage, and can carry out efficient backflushing, cleaning to filter screen, while realizing the automatic addition and efficient mixing of flocculating agent, ensure processing efficiency and purification effect.

The utility model relates to the technical fields of mould shrinkage pipe production especially relate to a mould shrinkage pipe production post -treatment device. Its technical scheme includes winding roller, processing box body and baffle, the processing box body lower surface welding has workstation, processing box body one side outer end surface is established with feeding hole, and processing box body both sides outer end surface all are established with air inlet, the fan that processing box body inside bottom end is installed, and the upper surface intercommunication of fan has the blow -off cover, the processing box body inner wall welding has the filter plate, the inside top of processing box body and the upper surface of filter plate all are fixed with outer rod, and the outer rod one side outer end surface swing plug -in has the inner rod, the inner rod one side outer end surface is fixed with the clamping plate, and the recess is established in the clamping plate inside, the inner wall rotation of processing box body is connected with winding roller, the winding roller one side outer end surface is fixed with baffle, and the winding roller upper surface establishes the fixed slot. The utility model is convenient for one side cooling one side winding, and the processing efficiency is high.

This invention relates to a relay and an automatic circuit protection method using the relay. The relay includes a housing, conductive steps disposed on the inner walls of the left and right sides of the housing, and a stepped conductive bridge that can dynamically fit with the conductive steps. External cables pass through the housing and are electrically connected to the conductive steps. A piston push rod device drives the conductive bridge to rise and fall, connecting or disconnecting it from the conductive steps. The piston push rod device is driven by vapor generated by the sublimation of an easily sublimable substance. This relay and the automatic high-voltage circuit protection method using the relay are not only reusable, but also have a simple and stable structure, low manufacturing and assembly costs, stable operation, long service life, and can reliably achieve power cut-off in a fire.

The utility model provides a kind of rainfall simulation device for testing the waterproof performance of lamps and lanterns, it includes rack, tray and water supply system, rack is equipped with support slide bar and driving rod, driving rod is arranged with several coils, support slide bar is slid with rainfall seat, rainfall seat is equipped with the driving magnet matched with coil, rainfall seat is arranged with several drain holes, tray is below drain hole, tray is used to place the lamps and lanterns to be measured, water supply system is connected with drain hole pipeline, so that rainfall output falls on lamps and lanterns, at this time, coil is used to drive driving magnet to drive rainfall seat to shake and simulate wind and rain environment, and driving magnet drives rainfall seat to move and adjust position;The utility model belongs to the technical field of lamps and lanterns testing equipment.

The application discloses a kind of atmospheric storage tank breather valve on-line detection device, it is related to storage tank breather valve detection technical field.The atmospheric storage tank breather valve on-line detection device, including detection pipe, the detection pipe outer wall is fixedly connected with measuring tube, the measuring tube inside is provided with measurement component, the measuring tube outer wall is fixedly connected with positive pressure component, the measuring tube outer wall is fixedly connected with negative pressure component, the positive pressure component outer wall is fixedly connected with gas supply component.The atmospheric storage tank breather valve on-line detection device, when encountering no power supply, continuously pull back and forth positive pressure handle, so that gas enters the inside of measuring tube to let the internal pressure of storage tank increase, when negative pressure detection, continuously pull back and forth negative pressure handle, let the internal pressure of measuring tube be low, and observe the scale indicated on pressure scale board by measurement pointer, whether the work of breather valve can be detected to be abnormal, so as to issue problem in time.

The utility model discloses a lubricating oil processing agitator, including the inner box, the outside of inner box is provided with the outer box, and the cavity is formed between inner box and outer box, and the bottom of cavity is provided with a plurality of communicating inner box's flow channel, and the lower surface of outer box is fixedly installed with the sealing base through bolt, and the inner side of inner box is rotatably connected with the positive direction stirring rod and a plurality of reverse stirring rods, and the upper surface of outer box is provided with the pressure control mechanism of control cavity gas pressure, and the inner wall of discharge pipe is provided with the electromagnetic valve. Through the positive direction stirring rod and a plurality of reverse stirring rods rotate simultaneously, can be to the lubricating oil in the inner box positive direction stirring and reverse stirring, through setting pressure control mechanism, through increasing the air pressure in the cavity and reducing the air pressure in the cavity, can make the lubricating oil reciprocating flow through the flow channel between the inner box and the cavity, to further improve the stirring effect, the utility model discloses the stirring mode is various, and the stirring mixing effect is improved greatly.

The utility model relates to the technical field of edge bonding machines, in particular to a plate extrusion device for a plate edge bonding machine, which comprises a mounting plate, a laminating wheel, a first rotating shaft and a support arm, the upper surface of the mounting plate is rotatably connected with a laminating wheel through a rotating shaft, the upper surface of the mounting plate close to one side of the laminating wheel is fixedly connected with a first rotating shaft, the first rotating shaft is rotatably connected with a support arm, the other end of the support arm is rotatably connected with an extrusion wheel, and the back of the extrusion wheel is connected with a reset mechanism; and a drying mechanism is arranged on one side of the extrusion wheel, the front portion of the supporting arm abuts against a positioning bolt, and the positioning bolt is in threaded connection with the interior of a hole in the mounting plate. According to the plate extrusion device for the plate edge bonding machine, the worm is rotated to push the second piston to compress air, the air is fed into the first air cylinder from the hose, the air pressure in the first air cylinder is increased, the extrusion force of the extrusion wheel on the supporting arm is adjusted, and then the extrusion force is controlled by the plate extrusion device.

The application discloses a caliper piston defect detection device, and belongs to the technical field of detection devices, and has the technical scheme as follows: a mounting frame is provided with a workbench; a detection base is provided with a placing bin, detection oil is input into the placing bin; a positioning device; a pressure head is installed on the mounting frame through a cylinder; a connecting pipe is installed on the pressure head; a conveying device is connected with the connecting pipe; a heating device is installed on the detection base and used for heating the detection oil; a liquid level detection device is installed on the detection base and connected with the bottom of the placing bin; the periphery of the connecting pipe is provided with a first sealing gasket, and the periphery of the pressure head is provided with a second sealing gasket. The application provides a caliper piston defect detection device and a control method thereof, so that the caliper piston can be detected under a high-temperature state, the working environment of the caliper piston is simulated, and defects on the caliper piston can be detected under high temperature.

This invention discloses an IoT chip module encapsulation conveying device, including a CNC guide rail and a carrier block. A laterally movable mounting plate is installed on the CNC guide rail, and a rack is fixedly connected to one side of the CNC guide rail. An air supply mechanism is installed on the mounting plate, and the rack is drivenly connected to the air supply mechanism. A first sliding groove is formed on the mounting plate, and a locking block is provided on the carrier block. This IoT chip module encapsulation conveying device, through the setting of a buffer mechanism, allows the carrier block to slide along the first sliding groove due to inertia the instant the mounting plate stops. The buffer mechanism can buffer the carrier block, thereby reducing the possibility of the encapsulant on the chip flowing out or deforming due to inertia. Through the coordinated arrangement of the rack, air supply mechanism, and buffer damping adjustment mechanism, the buffer mechanism can automatically adjust the damping magnitude according to the speed of the carrier block's movement, further improving the practicality of the device.

This utility model relates to the field of PVC membrane airtightness testing technology, specifically a PVC membrane airtightness testing device. The device includes a base, with a clamping assembly and a testing assembly mounted on the upper end of the base. The testing assembly includes multiple sets of support columns fixed to the base, with a fixed cylinder fixed to the upper end of each set of support columns. The clamping assembly clamps the PVC membrane and places it onto the upper end of the fixed cylinder. An upper connecting cylinder is inserted into the upper end of the clamping assembly, and a lower connecting cylinder is inserted into the fixed cylinder. The upper and lower connecting cylinders respectively press against the upper and lower ends of the PVC membrane, and are connected. Water is added to the upper connecting cylinder at an appropriate height through a water inlet, while air tank one and the air inlet pipe inflate the lower connecting cylinder. When air tank one is empty and the membrane airtightness is poor, the gas passes through the PVC membrane and enters the water in the upper connecting cylinder, generating bubbles. This increases the air pressure in air tank one. Observing the bubbles allows for the detection of airtightness and the specific location of the airtightness problem.

This invention relates to the field of ball valve welding technology and discloses an automatic ball valve welding device and method, including a ball valve body, a connecting rod body, a first clamp, a second clamp, and a heat fusion machine. A moving ring is slidably sleeved on the outside of the first clamp, and a scaling ring is provided inside the first clamp. The scaling ring includes a sleeve and an insert inserted between the sleeve. A first adjusting rod and a second adjusting rod are inserted into the side of the first clamp. The first adjusting rod is connected to the scaling ring, and a pressure control component is provided at the end of the second adjusting rod. The ends of the ball valve body and the connecting rod body are melted by the heat fusion machine, and the melted ends adhere together. The moving ring drives the second adjusting rod to move through the pressure control component, causing the second adjusting rod to push the first adjusting rod to move towards the center, causing the insert to retract into the sleeve. The diameter of the scaling ring is adjusted so that the inner ring of the scaling ring fits and squeezes the extruded material at the welding end, making the extruded material evenly distributed around the welding part, thereby improving the welding effect.

This invention discloses a manually lifted emergency seawater desalination device and method, relating to the field of emergency seawater desalination technology. It includes: a breathable and waterproof membrane; a desalination cylinder with mounting holes extending through its inner and outer surfaces; and a reverse osmosis membrane sealed within the mounting holes. A water inlet assembly, detachably mounted at the top opening of the desalination cylinder, is also included, and the water inlet assembly contains a reverse osmosis membrane. Seawater desalination is achieved using the natural pressure of seawater, without relying on any external energy source. In emergency situations where desalination supply is limited or interrupted, it can quickly and stably desalinate seawater to obtain fresh water. Air inside the desalination cylinder acts as a buffer zone, reducing the direct impact of water pressure generated during desalination on the reverse osmosis membrane and the breathable and waterproof membrane, protecting both membranes from damage. After desalination is complete, the remaining air inside the desalination cylinder not only prevents fresh water leakage but also provides a sealing effect, simplifying the device and eliminating the need for additional sealing structures.

This utility model discloses an electronic atomizer, including an atomizing main unit and a liquid storage chamber. The liquid storage chamber includes a liquid storage shell, a sealing cap, and a limiting shell. A liquid storage chamber is provided inside the liquid storage shell. The sealing cap seals the opening of the liquid storage chamber and provides a liquid outlet channel. The limiting shell is disposed at the opening of the liquid storage chamber and fixed to the liquid storage shell. The liquid storage shell has a first position, a second position, and a third position arranged sequentially along a first direction relative to the atomizing main unit. When the liquid storage shell is in the first position, the liquid outlet channel is blocked so that the liquid storage chamber is not connected to the atomizing main unit. When the liquid storage shell is in the second and third positions, the liquid outlet channel is open so that the liquid storage chamber is connected to the atomizing main unit. When the liquid storage shell switches between the first and second positions, the sealing cap moves synchronously with the liquid storage shell due to the restriction of the limiting shell. When the liquid storage shell moves from the second position to the third position, the sealing cap is released from the restriction of the limiting shell so that it can move in a straight line relative to the liquid storage shell in the first direction.

The utility model discloses a kind of gas protection system and crystallization system, it is related to the inert gas protection technical field of crystallization melting equipment.The gas protection system includes: aeration end air passage, the aeration end air passage is respectively communicated with aeration port and first gas source, and be equipped with one or more first pressure regulator for adjusting the gas pressure value of filling the crystallization equipment.The first gas release end air passage, the first gas release end air passage is communicated with gas release port, and be equipped with gas storage tank;And / or second gas release end air passage, the second gas release end air passage is communicated with the gas release port, and be equipped with first stop valve and first pressure automatic regulatorBy using the technology provided by the utility model, the pressure value in crystallization equipment can be ensured constant, and moisture and oxygen in air are isolated to ensure the purity of chemical material.

This invention discloses a plasma generating device for molecular beam epitaxy (MBE) equipment, comprising: a gas ionization chamber, a gas ionization unit, and a heating unit; wherein the gas ionization unit and the heating unit are disposed within the gas ionization chamber; the gas ionization chamber is disposed within and connected to the reaction chamber of the MBE equipment; the gas ionization unit is a capacitively coupled plasma source, including a grounded upper electrode and a lower electrode connected to a radio frequency power supply; a plasma generation region is located between the upper and lower electrodes; the gas ionization chamber surrounds the plasma generation region, reducing plasma leakage into the reaction chamber of the MBE equipment; the heating unit heats the gas ionization chamber, ensuring that the temperature and pressure of the gas ionization chamber are higher than those of the reaction chamber of the MBE equipment. The plasma generating device of this invention has advantages such as good shielding, high plasma concentration, and excellent uniformity.

This invention provides a split-type explosion-proof robot control cabinet based on an external air source, relating to the fields of industrial automation and explosion-proof safety technology. It includes an explosion-proof cabinet and a positive-pressure cabinet, connected via a docking interface. An external air source is input into the positive-pressure cabinet to form a positive-pressure airflow, dissipating heat from the cabinet and maintaining an internal pressure higher than the external environment. The explosion-proof cabinet is a sealed cavity. After the positive-pressure airflow exits from the positive-pressure cabinet, it flows over the outer surface of the explosion-proof cabinet, further dissipating heat. This invention achieves dual explosion-proof protection by independently designing and collaboratively operating the explosion-proof cabinet and the positive-pressure cabinet. The positive-pressure cabinet prevents the infiltration of external flammable gases through dynamic pressure control. The two modules achieve physical isolation and functional linkage through a quick-connect interface, balancing explosion-proof performance with modular maintenance requirements.

The present disclosure relates to a pipeline machine. The pipeline machine comprises a machine body, a heating assembly and a flow limiting assembly. The machine body has a water inlet pipeline, a water tank and a water outlet pipeline. The water inlet pipeline is in communication with a water inlet of the water tank. The flow limiting assembly comprises a multi-stage connecting pipeline and a flow limiting pipeline. A first-stage connecting pipeline in the multi-stage connecting pipeline is in communication with a water outlet of the water tank through the heating assembly. A last-stage connecting pipeline in the multi-stage connecting pipeline is in communication with the water outlet pipeline. Adjacent two-stage connecting pipelines in the multi-stage connecting pipeline are in communication through the flow limiting pipeline. An inner diameter of the flow limiting pipeline is smaller than an inner diameter of each connecting pipeline, and the inner diameter of the flow limiting pipeline decreases or is equal along a water flow direction. The embodiment of the present disclosure can reduce the sound of bubble flow and water flow noise.

This utility model discloses a quick connector for gas cylinder valves, including a gas cylinder valve body, a connector body, a gas pipe, a switch, and an alarm. The connector body is fitted onto the outer wall of the gas cylinder valve body, and a gas pipe is fixedly connected to the inner wall of the end of the connector body. A limit ring is fixedly provided on the inner wall of the connector body on the side of the gas pipe, and an inner sealing ring is adhered to the outer wall of the limit ring. A base is fixedly connected to the outer wall of the gas cylinder valve body on the side of the connector body, and an outer sealing ring is fixedly installed on the outer wall of the base on the side of the connector body. A protective cover is fixedly provided on the outer wall of the connector body. A triggering mechanism is provided on the upper inner wall of the protective cover, and a switch is installed on the inner wall of the protective cover on the side of the triggering mechanism. An alarm is provided on the outer wall of the protective cover on the side of the switch. This quick connector for gas cylinder valves facilitates timely alarm in case of leakage, thereby improving the safety of the device.