123results about How to "Ensure air pressure balance" patented technology

The invention provides an outdoor display device of ideologies and politics. The device comprises a base, a groove formed in the base, a display mechanism arranged in the groove, a retracting mechanism arranged between the display mechanism and the groove for lifting the displaying mechanism in the groove, and a water drainage mechanism arranged at the periphery wall of the groove. According to the outdoor display device of ideologies and politics, the lifting mode is used for administering self-protection measures during the occurrence of severe convection weather to retract the device into the groove to lower the height. At the same time, a sealed display structure is used for preventing the phenomenon that stagnant water enters the display mechanism, and combined with the inclined ring groove and the ring water seal, the display mechanism can not only retract freely in the groove, but also achieve the automatic water drainage. An emergency protection mechanism is used for implementing further self-protection during the occurrence of severe convection weather to guarantee that the device can achieve intelligent and automatic control after being inducted for once, the personnel maintenance is reduced, and reconstruction investment for the damages caused by the severe convection weather can be lowered.

The invention discloses a tube breaking mechanism, a sealed test tube assembly comprising the tube breaking mechanism and application of the sealed test tube assembly. The tube breaking mechanism comprises a piercing component and a supporting component. The piercing component comprises a body and a shrinking part. The outer side face of the piercing component or the outer side face of the supporting component is asymmetrically distributed relative to the center of the supporting component. The sealed test tube assembly comprises the tube breaking mechanism, a solution tube and a sleeve tube. The solution tube is embedded and inserted into the sleeve tube to form a sealed and embedded bottom space. The tube breaking mechanism is located below the bottom of the solution tube embedded in the sleeve tube and used for piercing the bottom of the solution tube. After the bottom of the solution tube is pierced, at least two gap channels are formed by the outer side face of the tube breaking mechanism and a fractured hole in the bottom of the solution tube, a solution in the solution tube can flow out of the solution tube, and air in the sleeve tube can enter the solution tube. The solution tube can be pierced quite conveniently through the tube breaking mechanism. The sealed test tube assembly does not leak, is widely applied and is good in effect.

The invention discloses a roller washing machine. The roller washing machine comprises an inner barrel, an outer barrel, a pneumatic balancing mechanism and a water inlet device, wherein the inner barrel is rotatably arranged in the outer barrel by virtue of an inner barrel shaft, the inner barrel is used as a water storage container when clothes are washed, a water outlet and a sealing valve fornormally closing the water outlet are formed in and arranged on the circumferential wall of the inner barrel, the water outlet can be opened by the sealing valve under the centrifugal action when theinner barrel rotates at the speed above the set rotating speed, the pneumatic balancing mechanism is used for communicating the inner barrel with the external environment so as to balance the internalpressure of the inner barrel, a hollow channel is formed in the inner barrel shaft, the water inlet device communicates with the interior of the inner barrel through the hollow channel of the inner barrel shaft, the pneumatic balancing mechanism is arranged on the inner barrel shaft, and a non-contact heating module is arranged on the outer barrel and does not make contact with the inner barrel so as to heat the washing water stored in the inner barrel. The roller washing machine has the characteristics of water conservation and cleanness.

The invention relates to an automatic multi-layer cutting machine. The automatic multi-layer cutting machine comprises a machine frame, and the machine frame is provided with a vacuum adsorption platform and a cutting device; the vacuum adsorption platform comprises a plurality of adsorption holes, regulating valves controlling the sizes of air channels are correspondingly arranged in the multipleadsorption holes, and the vacuum adsorption platform is provided with a vacuum device communicating with all the adsorption holes; a moving block located right under the cutting device and synchronously moving with the cutting device is arranged at the bottom of the machine frame, and the moving block is connected to the back face of the vacuum adsorption platform in an abutting mode and slides on the back face of the vacuum adsorption platform; the regulating valves are provided with control parts extending out of the lower surface of the vacuum adsorption platform, wherein the control partsenlarge the air channels of the adsorption holes after being pressed in the vacuum adsorption platform by the moving block, and the moving block and the cutting device move synchronously; the adsorption capacity of the corresponding adsorption holes are adjusted to be higher by the moving block, and thus the cloth corresponding to the cutting device is adsorbed firmly, and the quality of cloth cutting is improved; and meanwhile the adsorption capacity of all the adsorption holes is controlled separately, and the cloth adsorption in a large area is not affected after the failure of individualregulating valves.

The invention discloses a socket with a dust removal function. The invention belongs to the field of power equipment, the invention discloses the socket with the dust removal function. The socket includes a panel, a mounting groove is formed in panel, two sliding rods which are symmetrically arranged are fixedly connected into the mounting groove; a sliding block is slidably connected to the sliding rod; an inserting plate is slidably connected to an opening of the mounting groove; the inserting plate is fixedly connected with the sliding block through a bending rod; a spring sleeves the sliding rod, the two ends of the spring are fixedly connected with the sliding block and the inner bottom of the panel respectively; the bottom of the panel is fixedly connected with a piston cylinder; a piston is slidably and hermetically connected into the piston cylinder; the upper end of the piston is fixedly connected with a piston rod; the upper end of the piston rod penetrates through the bottomof the panel and is fixedly connected with the plugboard; a dust discharging pipe is fixedly connected to the top of panel and fixedly connected with inner bottom of the piston cylinder through an air guide pipe. The socket has the advantages that the socket is novel and unique in structure, a large quantity of dust cannot be easily accumulated on the socket, the cleanness of the socket can be kept for a long time, and the integral attractiveness of the socket can be kept.

The invention discloses a micro thermoelectric refrigerator with a high safety performance. The micro thermoelectric refrigerator comprises a semiconductor refrigeration sheet, a heat-isolating sheet,a heat-isolating spacer, a cold conducting sheet, screws and a cooling device, wherein the heat end of the semiconductor refrigeration sheet is spliced and fixed to the centre of one side of the heat-isolating sheet through heat conducting silicone grease; the heat-isolating spacer is spliced to the same side, with the semiconductor refrigeration sheet, of the heat-isolating sheet and the semiconductor refrigeration sheet is located on the inner side of the heat-isolating spacer; the cold end of the semiconductor refrigeration sheet is spliced and fixed to the centre of one side of the cold conducting sheet through heat conducting silicone grease; one side, far from the heat-isolating sheet, of the heat-isolating spacer is in contact with the cold conducting sheet; two ends of the cold conducting sheet are fixedly connected to the heat-isolating sheet through the screws; and the cooling device is arranged on one side, far from the cold conducting sheet, of the heat-isolating sheet. The micro thermoelectric refrigerator can reduce the temperature of the fins of the heat-isolating sheet quickly, so that normal use of the semiconductor refrigeration sheet is guaranteed and the service life of the thermoelectric refrigerator is prolonged.

The invention discloses an air environment purification system for a subway tunnel. The system comprises a relatively closed unit, a polluted air purification unit, a metal pollutant recovery unit and an electric control unit. A running method of the air environment purification system comprises the steps that the relatively closed air environment purification system is arranged in a subway tunnel and along the inner wall of the tunnel; by utilizing an air curtain, an air collection box, an air purification device, an ion purification device, an air exhausting and dust cleaning device, a vacuum dust suction device, a large-wave adsorption purification device, a super-rough surface adsorption purification device, an electromagnetic collection device and other devices of the purification system, polluted air near the interior of the tunnel is purified, and the inner air environment of the whole tunnel is purified by several-time running of a train runs several times, wherein the polluted air is brought by piston wind formed when the train moves in the tunnel. According to the air environment purification system for the subway tunnel, an integrated purification mode of coping with all motions by remaining motionless is adopted, the running process of the train is the process of purifying air in the subway tunnel, and the defects are overcome that movable subway tunnel cleaning equipment and distributed installation equipment are high in energy consumption, high in late-period management cost and the like.

The invention discloses a plugging device for a gas ventilation end cap. The plugging device for the gas ventilation end cap comprises a signal receiver, a first screw cap, a fixed piece, a fire-retardance ventilation control device, bolts, a second screw cap, a left flange plate, a left end cap, a right end cap, a right flange plate, screw holes and ventilation holes. The right flange plate is welded to the right end of the right end cap. The fire-retardance ventilation control device is arranged, and the plugging device is opened during work, so that gas normally passes through without affecting normal use. When the plugging device is not used, a pipeline is closed by using a fire-retardance plate. The fire-retardant plate is a solid material with a plurality of small passages or gaps, wherein the gas can pass through the fire-retardant plate. When the passages or gaps are small enough, the flame is divided into a plurality of small flame flows by the fire-retardant plate after the flame enters the fire-retardant plate. Due to the heat transfer effect and the wall effect, the flame flows are quenched, the air pressure balance at both ends of the pipeline can be maintained, the fire can be prevented from spreading, and the safety factor is high.

The invention discloses a heat collective device of a solar water heater, relating to a heat collective device of a superconductive tube solar water heater. The solar water heater comprises an evacuated collector tube, a superconductive tube, an annular connecting base for connecting the water tank of the solar water heater, and an elastic plug for connecting the evacuated collector tube and the superconductive tube; the lower end face of the elastic piston is provided with a circle of groove of which the width is slightly smaller than the wall thickness of the evacuated collector tube winch is fixedly connected with the elastic plug by the groove; the annular connecting base is provided with an external rotation face fitted with the connecting hole of the water tank of the solar water heater, the internal rotation face of the annular connecting base is detachably connected with the external rotation face of the elastic plug in a sealing manner; a center hole is arranged at the middlepart of the elastic plug, and the superconductive tube is fixedly connected with the elastic plug by the center hole. In the invention, no incrustation is generated on the wall of the superconductivetube, thereby improving heat collecting efficiency and simultaneously improving the service life of the evacuated collector tube.

The invention discloses a river surface floating garbage cleaning boat and a cleaning method thereof. The cleaning boat comprises a boat body and a garbage cleaning device, the garbage cleaning devicecomprises a containing box, breaking devices, slurry pumping devices and filtering devices, the breaking devices, the slurry pumping devices and the filtering devices arranged in the containing box,a garbage inlet is formed in one side, facing a stem, of the containing box, the breaking devices are arranged at the inner bottom of the containing box and positioned below the garbage inlet, the adjacent breaking devices are provided with the slurry pumping devices, inlet ends of the slurry pumping devices are soaked into slurry solution formed after garbage is broken by the breaking devices, and the filtering devices are arranged at outlet ends of the slurry pumping devices and separate and filter mixed solution of broken garbage and water. According to the river surface floating garbage cleaning boat and the cleaning method thereof, the occupied space of salved garbage sundries can be effectively decreased, and each launching operation time is prolonged.

The invention discloses a gas compressor with damping boss guide vanes. The gas compressor is composed of a machine body assembly, a supercharging device and a servo motor. The supercharging device isinstalled between a gas inlet and a main gas chamber of the main body assembly, gas supercharging is achieved, the supercharging process is stable, energy consumption is low, and high supercharging is achieved according to practical requirements. The servo motor is installed on the outer wall side of a shell. The guide vanes adopted in the gas compressor are simple in structure, damping bosses inthe middles of the guide vanes and the vanes are assembled to be in an annular shape to restrict each other, rigidity is increased, the inherent frequency of the vanes is changed, the bending torsional stress of the roots of the vanes is reduced, damping boss combined faces of the guide vanes are sprayed with wear resisting alloy, and the damping effect can be achieved during vibration of the guide vanes. Impellers adopted in the gas compressor are large in gas suction amount, low in noise, high in working efficiency, no prone to deformation and damage and long in service life, flow equalizing processing for gas suction and gas exhaust can be achieved, and balance of gas pressure in the shell is ensured.

The invention relates to the technical field of common mechanical auxiliary equipment, and discloses an auxiliary drilling device for a hand-held electric drill. The auxiliary drilling device for thehand-held electric drill comprises a cover body, a mounting hole, a conical spring, a thin bearing, an auxiliary positioning mechanism, a transverse partition, a contact mechanism, an air pump, a transition mechanism, an air intake pipe, a single-way air guiding valve, a ring groove, an elastic sealing ring, a controlling switch, a two-foot pedal, and a tapered telescopic sleeve, wherein the mounting hole is formed in the top middle portion of the cover body; the top portion of the conical spring is fixedly mounted on the inner side of the mounting hole and extends to the inner side of the cover body; the thin bearing is fixedly mounted on the inner side of the bottom of the conical spring; the broadside of the top portion of the tapered telescopic sleeve is adhered to the inner bottom ofthe mounting hole; and the bottom inner side of the tapered telescopic sleeve adheres to the outer side of the thin bearing. According to the auxiliary drilling device for the hand-held electric drill, the purpose of assisting in the positioning and protection of a drill bit while preventing the diffusion of dust is achieved, and the dust generated by the drilling is prevented from falling on theground and causing the backfilling effect of the drilling hole.

The invention belongs to the field of injection molds, and particularly relates to a novel thermal deformation injection mold. The injection mold comprises a movable mold body and a fixed mold body. Aplurality of horizontally-arranged positioning rods are fixedly connected to the upper end and the lower end of the inner side wall of the movable mold body, a plurality of positioning holes in one-to-one correspondence with the positioning rods are formed in the side wall of the fixed mold body, and the positioning rods are slidably connected with the positioning holes. An injection molding holeis formed in the side wall of the fixed mold body and fixedly communicates with an injection molding head, a rotating roller is arranged in the injection molding head, a core groove is formed in theinner side wall of the fixed mold body, liquid containing grooves are formed in the inner side wall of the movable mold body and the inner side wall of the core groove, electrorheological fluid is contained in each liquid containing groove, and a memory metal thin layer is hermetically connected to a groove opening of each liquid containing groove. Core blocks are formed between the memory metal thin layers and the movable mold body, and a thermoelectric power generation piece is fixedly embedded in the inner side wall of the movable mold body and electrically connected with the electrorheological fluid. The axis of an air outlet hole channel is obliquely arranged downwards, it can be guaranteed that sprayed air directly enters the space between the movable mold body and the fixed mold body, dust in the air is removed, and the dust removal effect is better.

A simple and convenient sampling device for field leaching water samples is disclosed. The sampling device comprises a collecting device and a gathering device. The collecting device comprises a sleeve, a sealing cover, a pedestal, a water delivery silica gel reelpipe, a ventilating silica gel reelpipe, a water pipe, a ventilating pipe, a protective cased pipe and a water storage chamber. The gathering device comprises a transparent measuring flask, a sampling bottle, a vacuum pump, a storage battery, a first liquid taking hose, a second liquid taking hose and an air suction pipe. One end of the first liquid taking hose is connected to the water delivery silica gel reelpipe pulled out of the sleeve. The sampling device is simple in structure and convenient in water sampling operation. The sampling device has anticorrosion, anti-ageing and antipollution functions. The service lifetime of the sampling device is prolonged. Updating and maintaining costs of the sampling device are saved.

The invention relates to a dryer, in particular to a dryer provided with a uniform air distributing system. The dryer comprises a rack, wherein a drying box is continuously arranged on the rack in thelongitudinal direction, and a conveying belt penetrating through the inner cavity of the drying box is arranged on the rack. A hot air device is connected to one side of the drying box, and an air outlet and an air return port are formed between the hot air device and the drying box and are located on the upper side and the lower side of the conveying belt. The dryer is characterized in that an air distributing plate is arranged in the drying box portion between the air outlet and the conveying belt and is uniformly provided with through holes. The distance between the air distributing plateand the conveying belt is gradually increased from one side to the other side of the air outlet, so that the air distributing plate is obliquely arranged, and the periphery of the air distributing plate is in sealed connection with the inner wall of the drying box. The dryer can conduct uniform air distribution on hot air introduced into the drying box, uniform material drying is achieved, and theoperating efficiency is improved.

The invention provides a drum washing machine which comprises an inner drum, wherein the inner drum is a non-porous inner drum, and contains washing water during clothes washing. The drum washing machine also comprises an air pressure balancing mechanism used for communicating the inner drum with external environment so as to balance the air pressure in the inner drum. The invention provides the drum washing machine which has the non-porous inner drum and is of a front opening structure. The structure is simple. Washing/rinsing water does not need to be filled between the inner drum and an outer drum, so that the washing water consumption of the washing machine is greatly reduced. The drum washing machine has the advantages that during water inlet, air in a sealed cabin of the inner drum is pressed, and can overflow through the air pressure balancing mechanism to ensure the air pressure balance. When the water failure suddenly occurs, external air can fast enter the sealed cabin of theinner drum, the suck-back condition is damaged, the air pressure balance is ensured, and the washing water is prevented from being sucked into a tap water pipe network.

The invention discloses a composting device and a composting method for organic garbage, and relates to the technical field of organic garbage treatment. The composting device comprises an outer shell, a heat exchange assembly, an air inlet pipe, an air outlet pipe and a leachate collecting assembly.The upper end of the outer shell is provided with an opening, the opening is connected with a covering film, the covering film can open or close the opening, and the outer shell is used for containing the organic garbage; the heat exchange assembly is used for heating the interior of the outer shell, the air inlet pipe and the air outlet pipe can communicate with an inner cavity of the outer shell and the outside, the end, away from the outer shell, of the air inlet pipe is used for communicating with the induced draft fan, the air inlet pipe is used for introducing oxygen into the outer shell, and the air outlet pipe is used for guiding out waste gas generated in the outer shell; and one end of the leachate collecting assembly is located in the outer shell, the other end of the leachate collecting assembly extends out of the outer shell, and the leachate collecting assembly is used for guiding percolate generated by composting to the outside. According to the composting device and the composting method for the organic garbage, oxygen can be supplied to a pile body while the temperature of the pile body is ensured.

The invention provides a biomass fuel gasification furnace. The biomass fuel gasification furnace comprises a reaction box, supporting legs, a feeding unit, an air valve unit, an air guide unit and amaterial containing unit. Supporting feet are evenly arranged at the lower end of the reaction box, a feeding unit is arranged in the upper end of the reaction box, an air valve unit is arranged on the side wall of the left end of the reaction box, an air guide unit is arranged on the side wall of the right end of the reaction box, and a container is arranged in the lower end of the reaction box.The invention solves the problems as follows: according to an existing biomass fuel gasification furnace, fuel in the gasification furnace cannot be fully combusted, so that internal gas emission is affected by insufficient combustion of internal fuel particles, waste of the fuel particles combusted in an internal fuel cylinder cannot be completely discharged, and the environment is polluted are solved, the waste is accumulated in the inner fuel cylinder, and the internal capacity of the inner fuel cylinder and the combustion of the waste are influenced; besides, the internal air pressure of the existing gasification furnace cannot be balanced, so that the use safety of the gasification furnace is influenced, and the like.

The invention relates to a flip type tea boiling pot which comprises a pot body, a pot lid, a nozzle, a pot handle, a tea steaming component and a connecting component. The pot lid is arranged at a top opening of the pot body, the nozzle and the pot handle are symmetrically arranged on the side wall of the pot body relative to the central line of the pot body, the tea steaming component is arranged in the pot body and detachably connected with the pot body, and the connecting component is mounted between the pot lid and the pot handle. According to the tea boiling pot, a flared guide pipe is arranged in the tea steaming component, the top opening of the flared guide pipe is flared, water is added into the pot through the flared opening when water adding is needed, cold water does not contact with tea leaves, contraction of the tea leaves in an expanding state is avoided, the taste of the tea leaves is ensured, the pot lid can be more conveniently opened by the aid of the connecting component, scalding caused by high temperature of the pot lid is avoided, and the tea boiling pot is convenient and practical.

The invention discloses an evaporation device used for a heat pipe radiator, and belongs to the technical field of radiators. The evaporation device used for the heat pipe radiator comprises a heat dissipation box, the lower end of the heat dissipation box is fixedly connected with a condensate water storage box, a driving water pump is arranged in one side of the condensate water storage box, the output end of the driving water pump is fixedly connected with a spraying pipe, the front side of the upper end of the spraying pipe is evenly connected with multiple spraying guide pipes, and multiple spraying heads are arranged at the tail ends of the spraying guide pipes; the spraying pipe penetrates through the condensate water storage box and extends to the upper end of the outer portion of the heat dissipation box, and the spraying guide pipes at the front end of the spraying pipe penetrate through the side wall of the upper end of the heat dissipation box; and a fan is fixedly connected to the center of the upper side of the heat dissipation box, and circulating pipes are fixedly connected to the two sides of the heat dissipation box. The evaporation device solves the problem that in the prior art, gaseous condensate water after heat absorption is discharged along with airflow and cannot continuously participate in the circulating cooling process.

The invention relates to the technical field of medical devices, in particular to a self-eating device for the disabled. Two-way foot switches are fixedly installed on the left side and right side of the top surface of the sliding board, and the disabled can realize the two-way foot switch by stepping on the two-way foot switch with both feet. Control of food supply: the liquid food container is installed on the left installation hole, the dish container is installed on the middle installation hole, and the staple food container is installed on the right installation hole, so that the disabled can eat a variety of foods independently; The front end of the top surface of the board and the right side board is fixedly equipped with a storage box. When the device is not in use, the liquid food container, dish container and staple food container can be placed in the storage box, and the slide plate is slid into the back board and the left side board. In the groove formed with the right side plate, lower the lift to the lowest position, adjust the telescopic rod to the shortest, the equipment occupies a small volume, is suitable for a wide range of occasions, and is easy to carry, which is of great help to the disabled to improve their confidence in life.