122results about How to "Avoid tight seals" patented technology

A device with chemical surface patterns (defined surface areas of at least two different chemical compositions) with biochemical or biological relevance on substrates with prefabricated patterns of at least two different types of regions (α, β, . . . ), whereas at least two different, consecutively applied molecular self-assembly systems (A, B, . . . ) are used in a way that at least one of the applied assembly systems (A or B or . . . ) is specific to one type of the prefabricated patterns (α or β or . . . ).

A seal structure of an electric kettle comprises a body with a handle and a bottom cover of the body. A heating element is disposed in the body. The body is provided with a body opening corresponding to the heating element. A seal part is disposed at the connection of the body opening with the heating element. The seal part or the body is provided with a snap ring outside. The snap ring for fixing the heating element is hermetically connected with the body, or the seal part or the body is provided with a retractable strip, or a metal tying wire for fixing the heating element is hermetically connected with the body. The seal part is provided with a groove part with an upward opening, or the inner wall of a silicone seal ring and the outer wall of the heating element form a groove part with an upward opening, or a contact face of the seal part is in extrusion-deforming fit with the cross section of the body opening. The seal part is added to the heating element and provided with the snap ring, the retractable strip or the metal tying wire outside, and accordingly the heating element is hermetically connected with the body, poor tightness, seepage and the like are effectively prevented, and product quality is improved.

The invention discloses a protective sealing door for an underground refuge chamber. The protective sealing door comprises a door frame and a door plate, wherein the door plate is arranged on the door frame through a rotation shaft; a locking mechanism for locking the door plate on the door frame is arranged on the door plate, a plurality of first reinforcing ribs for reinforcing the strength of the door plate are arranged in the door plate; heat-insulating materials, namely aerogel heat-insulating felts are filled among the reinforcing ribs; at least two annular sealing rings, namely flame-resisting sealing rings are arranged at the joint of the door plate and the door frame; and the periphery of the door plate is locked by the locking mechanism. According to the protective sealing door, the aerogel heat-insulating felts which can bear the temperature of 1,400 DEG C to the maximum are filled in the door plate, so that the door plate can resist high temperature generated during explosion, and the high temperature is insulated out of the refuge chamber; at least two sealing rings which are made of flame-resisting, anti-static, high temperature-resisting and oil-resisting materials are arranged on the contact surface of the door plate and the door frame, so that the protective sealing door has a good sealing effect.

The invention discloses a long-acting CO2 gas-injecting pipe column and an operation method thereof. The long-acting CO2 gas-injecting column comprises an upper pipe column and a lower pipe column. The upper pipe column comprises an oil pipe which is arranged in a sleeve pipe in a sleeving mode. The oil pipe is provided with a circulating well-washing sliding sleeve, a hydraulic anchor, a ring-hanging device and a sealing inserting pipe in sequence from top to bottom. The lower pipe column comprises a sealing drum and a packer which are arranged on the oil pipe in sequence. The bottom of the lower pipe column is provided with a setting ball base and a double-grade check valve. The lower pipe column is fixed to the inner wall of the sleeve pipe through an anchor tile of the packer. Closing during water injecting can be achieved through the circulating well-washing sliding sleeve, and opening during backwashing can be achieved. According to the long-acting CO2 gas-injecting pipe column, the structure is simple, packing can be more reliable through the permanent packer, a down-hole well-closing function can be achieved through the multi-functional setting ball base, and down-hole well-closing can be more reliable through the double-grade check valve; through the circulating well-washing sliding sleeve and under the condition without moving pipe columns, the sliding sleeve can be started only through annular pressing, the operation of replacing annular protecting fluid can be conducted, the operation is more convenient and easy, and the cost is saved; and through the ring-hanging device, corrosion situations of pipe columns can further be monitored.

The invention discloses an on-line waste gas treatment system of a waste cable high-temperature treatment device. The on-line waste gas treatment system comprises a first dust collection mechanism, an energy transduction mechanism, a first regeneration mechanism, a settling mechanism, a dust collection module, an absorption mechanism, a discharging mechanism, a circulation mechanism, an unloading module and an adsorption filtering mechanism, wherein the energy transduction mechanism is communicated with the first end of the first dust collection mechanism; the first regeneration mechanism is communicated with the second end of the first dust collection mechanism; the settling mechanism is communicated with the energy transduction mechanism; the dust collection module is arranged below the settling mechanism; the absorption mechanism is arranged behind the settling mechanism; the discharging mechanism is arranged above the absorption mechanism; the circulation mechanism is communicated with the absorption mechanism; the unloading module is arranged below the absorption mechanism; the adsorption filtering mechanism is arranged between the absorption mechanism and the discharging mechanism. Aiming at the phenomena that by using a conventional dust collection system, wastes cannot be efficiently utilized and waste gases is discharged into the natural environment, the modules cooperate with one another, not only are waste gases efficiently recycled, but also substances in the waste gases are recycled, and environment pollution is avoided.

The invention discloses a bidirectional electromagnetic valve which comprises a valve seat (1), wherein the valve seat (1) is provided with a main valve port (11) and a valve cavity; a piston (2) is arranged in the valve cavity, and divides the valve cavity into an upper cavity (12) and a lower cavity (13); a pilot valve port (21) is formed in the upper end part of the piston (2); a circulation clearance (14) is formed between the circumferential side wall of the piston (2) and the corresponding inner wall of the valve cavity; a first branch circuit, a second branch circuit and a third branch circuit are arranged on the piston (2); the first branch circuit can be in one-way conducting with one end of a horizontal connecting pipe (31) from the upper cavity (12); the second branch circuit can be in one-way conducting with one end of a vertical connecting pipe (32) from the upper cavity (12); the third branch circuit can be in one-way conducting with the upper cavity (12) from one end of the vertical connecting pipe (32). Through the adoption of the structural design, the bidirectional electromagnetic valve has the advantages that the quantity of components can be reduced remarkably; the assembly technique can be simplified; the manufacturing cost can be reduced.

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 discloses a steel-cored aluminum strand end aluminum strand cutting tool. The steel-cored aluminum strand end aluminum strand cutting tool comprises a box body and a cutting machine which is arranged in the box body. A walking mechanism is arranged below the box body, a dust removing system is arranged on the box body, and a breather mask is arranged in the box body and connected with a box body air inlet pipe through a hose. An air outlet hole of the box body is connected with an air inlet of a blower, an air outlet of the blower is connected with a first air inlet pipe, and an exhaust mechanism is connected with an air inlet of the box body. The dust removing system comprises a first dust removing mechanism, an energy exchanging mechanism communicating with the first end of the first dust removing mechanism and a first regeneration mechanism communicating with the second end of the first dust removing mechanism. For the phenomenon that an existing dust removing system cannot efficiently use waste and waste gas enters the natural environment, under the synergistic action of all the modules, the waste gas can be efficiently recovered, substances in the waste gas can be recovered, and pollution to the environment is avoided.

The invention discloses a bidirectional electromagnetic valve which comprises a valve seat (1), wherein the valve seat (1) is provided with a main valve port (11) and a valve cavity; a piston (2) is arranged in the valve cavity, and divides the valve cavity into an upper cavity (12) and a lower cavity (13); a pilot valve port (21) is formed in the upper end part of the piston (2); a circulation clearance (14) is formed between the circumferential side wall of the piston (2) and the corresponding inner wall of the valve cavity; a first branch circuit, a second branch circuit and a third branch circuit are arranged on the piston (2); the first branch circuit can be in one-way conducting with one end of a horizontal connecting pipe (31) from the upper cavity (12); the second branch circuit can be in one-way conducting with one end of a vertical connecting pipe (32) from the upper cavity (12); the third branch circuit can be in one-way conducting with the upper cavity (12) from one end of the vertical connecting pipe (32). Through the adoption of the structural design, the bidirectional electromagnetic valve has the advantages that the quantity of components can be reduced remarkably; the assembly technique can be simplified; the manufacturing cost can be reduced.

The invention discloses a dimethyl ether fuel injector. The dimethyl ether fuel injector comprises a needle valve body and a needle valve, wherein the needle valve body is provided with a fuel inlet channel communicated with a valve cavity of the needle valve body; a pressure regulation spring is arranged in the valve cavity of the needle valve body; a fuel nozzle is arranged on the head of the needle valve body; the fuel nozzle is provided with a fuel injection hole which is opened or closed by moving from the needle valve along the axial direction of the valve cavity; the surface, contacted with the inner cavity of the fuel nozzle, of the head of the needle valve is provided with an anti-abrasion coating layer. In the fuel injector, the anti-abrasion coating layer bears friction caused by a relevant reciprocating motion between the needle valve and the fuel nozzle, so that abrasion between the fuel nozzle of the oil injector and the needle valve can be reduced effectively, and the service life of the fuel injector is prolonged. The invention also provides a dimethyl ether engine fuel supply system comprising the fuel injector.

The invention discloses a temperature measuring device for a power high voltage switch cabinet trolley switch. The temperature measuring device comprises a switch cabinet and an infrared temperature sensor which is arranged in the switch cabinet and is used for detecting the temperature of the switch. The infrared temperature sensor is connected with a programmable controller. The programmable controller is connected with a sound and light alarm. The programmable controller is connected with a blower. The switch cabinet is equipped with a dust removing system. The dust removing system comprises a first dust removing mechanism, a transduction mechanism communicated with a first end of the first dust removing mechanism, a first regeneration mechanism communicated with a second end of the first dust removing mechanism, and a sedimentation mechanism communicated with the transduction mechanism. For the phenomenon that waste gas enters a natural environment due to the fact that an existing dust removing system cannot carry out efficient utilization on waste, through mutual cooperation effect of various modules, the waste gas can be recycled efficiently, substances in the waste gas can be recycled, and the pollution to the environment is avoided.

The invention relates to the technical field of smelting furnaces, and particularly relates to a high-frequency smelting device for high-temperature alloy preparation. The high-frequency smelting device comprises a smelting barrel, wherein a furnace lining is arranged in the smelting barrel; high-frequency induction coils are embedded in the inner side wall and the bottom wall of the furnace lining; a graphite crucible is arranged in the furnace lining; an edge is arranged on the upper end face of the graphite crucible; fixing blocks are arranged on the two side walls of the smelting barrel; the upper end faces of the fixing blocks are fixedly connected with supports; sliding grooves are formed in the vertical end faces, close to each other, of the supports; the horizontal lower end facesof the supports are fixedly connected with hydraulic rods; the lower ends of the hydraulic rods are fixedly connected with a furnace cover; a pressing block is arranged on the lower end face of the furnace cover, and is located over an opening of the graphite crucible; and a wiring sleeve is arranged at the lower end of the smelting barrel. High-frequency large current is led into the high-frequency induction coils, the graphite crucible is heated, the temperature of alloy is rapidly increased, the aim of heating and melting is achieved, the structure is simple, the heating speed is high, andenergy saving and environment friendliness are achieved.

The invention discloses a method for welding a pump and a motor for a compressor shell. A compressor pump cylinder, a pump upper bracket, a top cover, a bottom cover and the motor are welded on the compressor shell by a laser welding device; the laser welding device comprises a welder and an aggregation lens arranged at the welder. The method for welding the pump and the motor for the compressor shell comprises the following steps: Step A, welding the compressor pump cylinder and the pump upper bracket on the compressor shell by a laser welding technology; Step B, welding the top cover and the bottom cover on the compressor shell by the laser welding technology; Step C, welding the motor on the compressor shell by the laser welding technology. The method for welding the pump and the motor for the compressor shell is novel, high in welding reliability and efficient.

The invention discloses a double-cylinder transporting device for foam concrete. The device comprises a driving mechanism, two pump bodies and a control mechanism, wherein the driving mechanism is connected with the pump bodies, the control mechanism is interconnected with the driving mechanism and the pump bodies by signals, and the two pump bodies are arranged at two sides of the driving mechanism. By adopting the way of pushing by a double-mechanical cylinder, the pressure can be increased to 9-11MPa while the transporting height is raised from original 120 meters to 300 meters or moreover, the transporting device is simple in structure and easy and convenient to operate. The service life after single-time maintenance can reach 10000 cubic meters and the transporting device is easy and convenient to maintain, so that the pain of maintenance staff is alleviated. Moreover, the device not only can transport slurry, but also can transport mortar, ceramic slurry, handstone slurry and the like, and can be used for avoiding deposition, layering and bubbling of gravels, caused by existing equipment. The double-cylinder transporting device for the foam concrete is worth of popularizing and applying.

The invention discloses a scroll compressor with a sealing assembly with a silencing structure and fixedly connected with a diaphragm plate. The scroll compressor comprises an upper shell, a lower shell, a motor, a main bearing, a movable scroll, a static scroll and a sealing assembly, wherein the sealing assembly comprises an upper fixing plate, a lower fixing plate, an outer sealing ring and aninner sealing ring; the lower end of the upper fixing plate is provided with a lower flange and the lower flange is provided with a circle of uniformly distributed rivet holes; the upper end of the upper fixing plate is provided with a circular sealing plate and the sealing plate is provided with a plurality of silencing holes; a middle round table is connected between the lower flange and the sealing plate; an inclined plane is arranged at the joint of the middle round table and the sealing plate; rivet columns corresponding to the rivet holes are arranged on the lower fixing plate, and the upper fixing plate, the lower fixing plate, the outer sealing ring and the inner sealing ring are riveted together by the rivet columns; and the inclined plane is in annular welding connection with thecentral hole of the diaphragm plate. With the scroll compressor, the problem that the original sealing assembly is not strict in sealing is thoroughly avoided. Meanwhile, the noise reduction and silencing effects are achieved due to the fact that the plurality of silencing holes are formed in the sealing plate.

The invention relates to the technical field of commodity wholesale trade, and discloses a commodity packaging device capable of realizing isochronous heat sealing and avoiding wrinkles. The commoditypackaging device comprises a base, through cooperative use of a ratchet wheel disc, a positioning rib, an electromagnet, a first rotating shaft, an outer sleeve rod, a second rotating shaft and rotating wheels, and a bag automatically stops moving during heat sealing by means of capacitance change, so that the condition that a packing bag cannot be sealed due to wrinkles can be avoided, and the sealing effect is improved. The packing bag is moved again after being sealed and transferred to the next processing step, through cooperative use of cams and heating plates, the heating time during heat sealing is kept consistent, and the situation that due to insufficient heating time, a plastic bag is insufficient in thermoforming, or due to too long time, thermoforming is excessive, is avoided,and the sealing intelligence of the entire device is improved. Through cooperative use of a first disc and a limiting sleeve, two steps of movement stopping of the packing bag and automatic isochronous heat sealing are linked, the linkage performance of the whole device is improved, and operation is simpler.

The invention discloses an electrolytic hydropower pole piece. The electrolytic hydropower pole piece comprises a first electrode piece, a second electrode piece, and a diaphragm arranged between the first electrode piece and the second electrode piece; multiple first through holes are formed in the first electrode piece; and the second electrode piece is provided with multiple second through holes corresponding to the first through holes. The electrolytic hydropower pole piece is high in electrolysis efficiency and hydrogen ion solubility.

The invention relates to the technical field of oral liquid health care products, in particular to a sealing device for oral liquid health care product production. The device comprises a support and a roller, the right side of the bottom end of the support is fixedly connected with the roller, the top end of the support is fixedly connected with a spring, the top end of the spring is fixedly connected with a push plate, the top end of the push plate is fixedly connected with a piston, an air barrel is slidably connected to the outer side of the piston, an air pump is fixedly connected to the top end of the support, a rack is fixedly connected to the bottom end of the push plate, a material barrel is fixedly connected to the top end of the inner side of the support, a limiting rotating plate is rotatably connected to the inner side of the bottom end of the material barrel located on the right side, and a gear is fixedly connected to the rear end of the limiting rotating plate. According to the sealing device, an oral liquid health-care product is automatically pressed and sealed through an air cylinder, a photoelectric door and a grooved wheel, time and labor are saved, the situation that sealing is not tight due to the fact that workers are prone to fatigue or negligence is avoided, oral liquid leakage is avoided, and the rejection rate is effectively reduced.

The invention relates to the technical field of air compression, and discloses a vortex air compressor which is characterized in that an impeller is fixedly sleeved on the outer surface of an output shaft of a power machine and positioned in a sealing bearing. When the power machine operates and drives the impeller to rotate, lubricating oil in the lubricating cavity can be driven to generate vortex, and when the outer side of the vortex makes contact with a circular through hole in the bottom of the lubricating cavity, the lubricating oil can enter a liquid guide tube under the action of centrifugal force, and the content of the lubricating oil in the lubricating cavity is reduced, so that the pressure intensity in the lubricating cavity is reduced, the lubricating oil in the liquid storage chamber enters the lubricating cavity through the liquid inlet tube to be supplemented, and the lubricating oil in the liquid guide tube flows under the action of the impeller, and thus, the problem that the service life is too short due to the fact that friction force among a swing slot, a swing limiting rod and a limiting ring is too large is solved, and the use cost of the device is reduced.

The invention provides an ice discharging device and a refrigerator with the same. The ice discharging device comprises an ice discharging pipeline with an ice outlet, a dispenser, a matching surfaceformed on the dispenser or the ice discharging pipeline and surrounding the ice outlet, a drive mechanism and a cover body which moves between a first position at which the ice outlet is opened and asecond position at which the ice outlet is closed under the driven of the driving mechanism, wherein the cover body comprises a flexible sealing piece with a concave variation portion, the flexible sealing piece is in contact to and is attached to the matching surface when the cover body is located at the second position, and the concave variation portion deforms to be in contact to and fit with the matching surface. Compared with the prior art, for the ice discharging device of the invention, when the ice outlet is closed, the flexible sealing piece is in contact to and is attached to the matching surface around the ice outlet, air in the concave variation portion is exhausted, and vacuum or negative pressure is formed between the flexible sealing piece and the matching surface, so that the cover body is tightly attached to the matching surface, sealing of the ice outlet is achieved, and cold leakage is avoided.

The invention provides a bucket lid correcting and opening device. The bucket lid correcting and opening device is used for opening a lid rapidly under the conditions that sampling and detecting are conducted on bucketed objects, the lid needs to be opened before use, and a bucket is covered with the lid for sealing after use, and the bucket lid correcting and opening device is also used for correcting, pressing and sealing after the bucket is covered with the lid. The bucket lid correcting and opening device is characterized in that two jaw heads are arranged at one end of a supporting rod; the far end of each jaw head is provided with a hook head used for hooking the edge of the lid; the near end of each jaw head is connected with one end of the supporting rod; an included angle is formed between the two jaw heads; a lid opening stress surface providing element is arranged at the junction of the supporting rod and the jaw heads; the end, away from the jaw heads, of the supporting rod is connected with a pressing corrector in series; and an included angle is formed between the supporting rod and the stress surface of the lid opening stress surface providing element. By the adoption of the bucket lid correcting and opening device, the lid opening efficiency can be improved, the strength of an operator is reduced, and the labor intensity is relieved; the bucket lid correcting and opening device can be suitable for bucket lids with different thicknesses and be used for correcting and pressing when the bucket is covered with the bucket lid again, so that reuse of the bucket lid is achieved, and the situation that sealing is poor after the bucket is covered with the bucket lid due to the fact that the bucket lid is deformed is avoided.

The invention discloses an ATPM-I type oil tube and sleeve sealing connection device, a pipe and a coupling, and relates to the technical field of sealing. The ATPM-I type oil tube and sleeve sealing connection device is structurally characterized by comprising the pipe and the coupling; the two ends of the pipe body are symmetrically provided with male buckles, and the two ends of the coupling are symmetrically provided with female buckles; the end faces of the ends of the annular extending-out parts of the male buckles form inclined step faces, sealing faces and external threads are sequentially arranged on the outer lateral faces of the ends of the annular extending-out parts of the male buckles from the ends inwards, and conic transition faces are arranged on the inner lateral walls of the annular extending-out parts; the annular extending-out parts of the male buckles are tightly screwed into inner ring cavities of the female buckles. The ATPM-I type oil tube and sleeve sealing connection device is good in sealing performance and high in strength of extension, and is suitable for sealing and leakage prevention at a connector of the pipe under bad geological conditions.

The invention discloses an adaptive sealed reaction chamber for a biochip reaction device, which comprises a chip positioning frame and a reaction chamber gland. A plurality of chip notches are arranged in the chip positioning frame, and the reaction chamber gland comprises a shell, an adaptive module, a compression bar, compression springs and a sealing ring. When a plurality of biochips in the adaptive sealed reaction chamber need simultaneous reaction, the compression spring positioned above each biochip is used for adjusting the adaptive module, a reaction cavity of each biochip can be independently and effectively sealed, the sizes of the reaction cavities of the biochip in the same reaction chamber are identical, and the problems of untightness, leakage and the like are avoided. Moreover, as the reaction chamber has an openable structure, an operator not only can conveniently observe cleaning conditions in the reaction cavities, but also can conveniently clean the reaction cavities.

The invention relates to a steam sterilizer with a sealed structure. The steam sterilizer comprises a cylinder body and a cylinder cover cooperating with the cylinder body, the cylinder body is provided with a switch button and a jack, the cylinder cover is provided with a gas nozzle and a pressure meter, the outer wall of the cylinder body cooperating with the cylinder cover is provided with an annular flange, the annular flange and the outer wall of the cylinder cover are provided with at least 4 groups of fixed blocks cooperating with each other, a threaded through hole is arranged in each of the fixed blocks, a leading screw provided with a nut in a cooperating manner is arranged in the threaded through hole, the upper end of the annular flange is provided with an annular slot I, the inner side of the cylinder cover is provided with an annular slot II cooperating with the annular slot I, and a rubber gasket is clamped between the annular slot I and the annular slot II. The upper end of the annular flange is provided with the annular slot I, the inner side of the cylinder cover is provided with the annular slot II cooperating with the annular slot I, and the rubber gasket is clamped between the annular slot I and the annular slot II, so the sealing property between the cylinder body and the cylinder cover is increased, and the problem of bad sealing induced by steam leakage in the disinfection process is avoided.

The invention belongs to the technical field of filter equipment, and provides a fluid filter. The fluid filter comprises a container shell, a feeding port, a discharge port, filter bodies, a rotary displacement back flushing mechanism and a rotary displacement pollutant discharge mechanism; the rotary displacement back flushing mechanism and the rotary displacement pollutant discharge mechanism are used for carrying out back flushing on a group of filter units and pollutant discharge; and the other filtering units are in a normal filtering state. Fluid treated by the fluid filter provided bythe invention, especially coal tar or crude oil, reach a specified filtering precision, and the filuid filter is reliable in operation, free of interruption, free of faults, free of maintenance, low in cost, long in cycle operation, less in emission of dust pollutant and extremely high in popularization value.