130results about How to "Easy to release pressure" patented technology

A chamber formed of a dielectric material is sealed with a lid for use in a microwave oven. The lid contains a pair of translating grip that engage the chamber rim to seal the vessel to contain pressure. The grips can be activated to release the lid by a centrally disposed button type actuator. The grips are coupled to a vent release means formed within the shell like construction of the lid.

The invention relates to a stirring cup with a vacuum-pumping function. The stirring cup comprises a stirring cup body, wherein the stirring cup body is connected with a vacuum-pumping device, the vacuum-pumping device comprises an air pumping cylinder body and a base, and the air pumping cylinder body is matched with the base and slides axially; an air pumping cavity is formed in the base, a first venting hole communicated with the interior of the stirring cup body is formed in the bottom of the air pumping cavity, and a venting plug is arranged on one side of the first exhaust hole; the interior of the air pumping cylinder body is communicated with the upper part and the lower part of the air pumping cavity in an alignment way to form a vacuum-pumping chamber, and a one-way air guide structure which can vent air under pressure in the vacuum chamber outwards is arranged between the inner wall of the air pumping cylinder body and the air pumping cavity. The invention aims at providing the stirring cup with the vacuum-pumping function which is simple in structure and convenient in use and a food processer; the air in the stirring cup is pumped by the vacuum-pumping device, so that the stirring cup is in a vacuum state, so as to be beneficial to stirring of a stirrer and fresh keeping of juice; the stirring cup is convenient to carry and has good sealing property.

The invention discloses a carbon fiber gas cylinder detection line and a carbon fiber gas cylinder detection method. The detection line includes, in a front-to-back arrangement manner, a water pressure test apparatus, a water pressure auxiliary test apparatus and an air tightness test apparatus. The water pressure test apparatus includes a test rack, a test operation bench, a pressurizing apparatus, a test case installed on the test rack, and test trolleys for stably placing a plurality of to-be-tested gas cylinders. The water pressure auxiliary test apparatus includes a gas cylinder fixture, a transporting trolley, and a gas cylinder water-pouring-away and drying device. The air tightness test apparatus includes an air tightness detection apparatus and a second air supply apparatus for supplying air to the to-be-tested gas cylinders. The air tightness test apparatus is in a cabinet structure or a ground trough structure. The detection method includes the steps of 1) water pressure test; 2) water pouring-away and drying treatment; and 3) air tightness test. The detection line is reasonable in design and simple in operations, is good in use effects, and can easily and quickly complete water pressure test and air tightness test for a plurality of carbon fiber gas cylinders.

The invention discloses a containment filtering and discharging system of a twin-reactor nuclear power plant, and the containment filtering and discharging system comprises a single-reactor configured filtering and discharging assembly and a downstream discharging assembly which is shared by two reactors, wherein the filtering and discharging assembly comprises a containment penetrating piece penetrating a nuclear power plant containment and a containment discharging pipeline penetrating the containment penetrating piece to be connected with a nuclear power plant unit, the downstream discharging assembly comprises an exhaust main pipe which is shared by the two reactors and connected with the containment discharging pipeline and a nuclear power plant chimney which is shared by the two reactors and is used for accommodating the exhaust main pipe. The filtering and discharging assembly is respectively configured for the two nuclear power plant units, so that the filtering and discharging volume requirement when the containments of the two units are simultaneously over-pressured can be met, the two unit containments are free from being manually and alternately operated to discharge the pressure, and each unit is independently operated, so that convenience in releasing the pressure can be realized.

The invention discloses a structural design and a realization way of a dual-opening-pressure and dual-displacement safety valve. The safety valve is provided with two different pressure regulation mechanisms capable of providing opening pressures of two different types and corresponding displacements, wherein a primary pressure-displacement regulating mechanism is composed of a valve body, a valve core, a main spring, a spring sleeve and a locking nut and provides the primary opening pressure and displacement of the safety valve; and a secondary pressure-displacement is composed of a valve core, a built-in valve core, a secondary spring, a regulation rod, a spring sleeve and a regulating nut and is used for providing the secondary opening pressure and displacement of the safety valve. The dual-opening-pressure dual-displacement safety valve is applicable to various air pressure systems, is used for releasing gas with pressure higher than the safe pressure of the systems and maintaining the safe operation of the system, and is especially applicable to a condition that the gas supply of the system is limited; when the pressure of the system is slightly higher, small displacement is needed for performing slow pressure relief, so that the gas in the system is prevented from being rapidly lost and being supplied. The safety valve is of an all-metal structure and is also applicable to high temperature systems.

The invention relates to an annulus protective liquid of annulus mechanical seat sealed oil-gas well and applications thereof. The protective liquid is composed of the following components in percentage by weight: 10 to 14% of emulsifier, 0.1 to 0.5% of foaming agent, 0.1 to 0.3% of foam stabilizer, 25 to 28% of oil phase, 0.5 to 1.0% of corrosion inhibitor, and the balance being water. The emulsifier, foaming agent, foam stabilizer and corrosion inhibitor are mixed, then water and oil phase are added to prepare stable emulsion; then gas with a stable chemical property is introduced into the emulsion to form stable foamed emulsion; and the stable foamed emulsion is injected into an oil sleeve annulus and is automatically separated into layers of gas, oil, and water under the effects of the temperature and pressure in the cylindrical well and the surface tensions of different components. The provided annulus protective liquid can protect the oil sleeve annulus, has a good corrosion inhibiting speed, does not generate an upward force on the wellhead, and can prevent the aging of the packer. Furthermore, the cost of annulus protective liquid is reduced.

The invention discloses an automatic detection line and detection method of a carbon fiber gas bottle. The detection line comprises a water pressure testing device, an auxiliary water pressure testing device, a bottle valve loading and unloading machine and an air tightness experiment device, which are arranged from front to back, wherein the water pressure testing device comprises a testing rack, a testing operation platform, a pressurizing device, a testing box and a testing trolley; the auxiliary water pressure testing device comprises a gas bottle clamp, a conveying trolley, and gas bottle water pouring and drying treatment equipment; the bottle valve loading and unloading machine comprises a bottle valve loading and unloading rack, a control cabinet, a gas bottle fixing mechanism and a bottle valve screwing mechanism; the air tightness experiment device comprises an air tightness testing device and a second gas supplying device for supplying gas to a plurality of gas bottles to be tested. The detection method comprises the following steps: 1, testing water pressure; 2, carrying out water pouring and drying treatment; 3, assembling a bottle valve; 4, testing air tightness. The automatic detection line provided by the invention is reasonable in design, simple to use and operate and good in use effect, and can be used for simply, conveniently and rapidly finishing water pressure testing and air tightness testing processes of the plurality of carbon fiber gas bottles.

The invention discloses a thermal insulation, waterproofing and drainage system for a tunnel of an alpine region. The system comprises a tunnel arch wall, a tunnel invert and an invert filling layer and also comprises a waterproofing and drainage system of the arch wall and an internal drainage system of the tunnel, wherein the waterproofing and drainage system of the arch wall comprises a self-adhesive type waterproofing board, an annular blind pipe and a longitudinal water-permeable pipe for arch feet; the internal drainage system of the tunnel comprises a center drainage pipe, an inspectionwell, a longitudinal water-permeable pipe for an arch bottom, an unidirectional thermal insulation and drainage pipe and side ditches; and both the tunnel arch wall and the tunnel invert are internally provided with VIP thermal insulation and waterproofing boards. By arranging fully-covered VIP thermal insulation and waterproofing boards between primary support and secondary lining of the tunnelinvert, on the premise of ensuring the temperature in each water-permeable pipe, deeply-buried center ditches are lifted to shallow positions, thereby improving the safety of tunnel construction and greatly reducing the construction quantity; and in a new design scheme, VIP thermal insulation, waterproofing and drainage materials are adopted in the tunnel arch wall, so that the waterproofing and drainage capabilities and efficiency in the tunnel can be greatly improved.

The invention relates to a breathing valve, an oil tank cover and an oil tank. The breathing valve for the oil tank cover comprises a valve body. A one-way air inlet part and a one-way exhaust part are arranged on the valve body. When the pressure in the oil tank and outside pressure are balanced, the oil tank is closed, volatile gas in the oil tank cannot be exhausted out, and the environment is protected. When negative pressure is formed in the oil tank, outside air is led into the oil tank through the one-way air inlet part, and balance of the air pressure of the oil tank is ensured. When the pressure in the oil tank is increased, gas in the oil tank is exhausted to the outside through the one-way exhaust part, when the oil tank is inclined or inverted, it is ensured that oil in the oil tank cannot flow out through the breathing valve, and therefore the use safety of the oil tank is ensured.

A pressure relief check valve system includes a valve body, a flapper, a magnet, an electromagnet, and a pressure sensor circuit. The flapper is rotationally mounted on the valve body and is movable between a closed position and an open position. The magnet is coupled to the flapper, and the electromagnet is coupled to the valve body. The pressure sensor circuit is adapted to sense one or more fluid pressures and is operable, based on the one or more sensed fluid pressures, to selectively supply or interrupt the electrical current to the electromagnet. The electromagnet is coupled to receive the electrical current and, upon receipt of the electrical current, either magnetically attracts or does not magnetically attract the magnet, to thereby hold the flapper in the closed position or allow flapper rotation to the open position, respectively.

The invention discloses an integrated fast inflatable air bag device for a ship, which is used in a cabin of the ship and comprises a fixing frame arranged in the cabin, wherein a high-pressure gas cylinder and an air bag are arranged on the fixing frame; the high-pressure gas cylinder is communicated with the air bag through a gas transmission pipe; and the integrated fast inflatable air bag device has a compact structure, small occupied space, convenient operation and the like. The design pressure of the device is larger than the external water pressure so as to ensure that the air bag is not extruded and deformed due to the external water pressure. After the device is started, the air bag is fully expanded to occupy part of the space inside the cabin, so that not only is the water inletamount inside the cabin reduced, but also the inflated air bag has vertical upward buoyancy to the top of the cabin, and the ship body inclination and sinking process caused by the fact that the intake water quantity inside the cabin exceeds the bearing capacity is slowed down.

An arrestor in which surface pressure at the interface between the inner peripheral surface of a reception opening of a fixed bushing and the outer peripheral surface of the forward end of an insulation tube is maintained at an appropriate level. The arrestor has the insulation tube (1) having a conductor (2) at its forward end, a stacked body (4) of arrestor elements, inserted into the insulation tube (1) with a high-voltage electrode (3) in between, a ground electrode (5) placed at the rear end side of the arrestor element stacked body (4), a coiled spring (8) placed at the rear end side of the ground electrode (5) so as to be concentric with the insulation tube (1), a metal case (6) surrounding the insulation tube (1), the ground electrode (5), and the spring (8), and a sealing member (7) installed at the opening on the rear end side of the metal case (6). The outer diameter of the rear end side of the insulation tube (1) is set smaller than the outer diameter of the center portion of the insulation tube (1). Also, a tapered outer surface (13) is provided at the outer periphery of the forward end (11) of the insulation tube (1).

The invention discloses a medical saccule pressure pump with combination of straight push and rotary tuning, which comprises a handle, a screw rod, a piston, a pump body and output equipment, and is characterized by further comprising a push rod, a crank, a fine tuning box and a pressure meter, wherein the top surface of the push rod is connected with the handle, and the bottom surface of the push rod is connected with the piston; the screw rod is inserted into the pump body and is hollow; the push rod is movably inserted into the screw rod for using; the bottom of the pump body is provided with a one-way valve and a pressure relief button; the fine tuning box is arranged above the pump body; the crank is used for driving the screw rod to move up and down through the fine tuning box after being rotated, so that the screw rod can be used for driving the piston to move downwardly in a fine tuning way. By adopting the medical saccule pressure pump, the defects of the conventional medical pressure pump are overcome; the pressure is measurable, pressurization is accurate, and the liquid injection amount or the aeration quantity is controlled accurately; and the medical saccule pressure pump has the characteristics of convenience for using, reliability, difficulty in sliding, and the like.

Relating to the technical field of heat conversion, the invention discloses a hot water pot steam heating system, which is designed to solve the problems of inaccurate heating temperature and the like in existing hot water pots. The hot water pot steam heating system comprises a controller, a hot water pot and a steam supply device connected to the hot water pot. The hot water pot comprises a pot body, which is provided with a cold water inlet, a hot water outlet and a steam inlet connected to the steam supply device. The tank body is also provided with a hot water reflux inlet. The hot water outlet is connected to the hot water reflux inlet through a hot water reflux pipeline. The hot water reflux pipeline is provided with a reversing valve, the input end of which is connected to the hot water outlet. Two output ends of the reversing valve are respectively connected to the hot water reflux inlet and a hot water output pipeline. A temperature sensor for detecting the temperature of hot water at the hot water outlet is disposed close to the hot water outlet. The controller is connected to the temperature sensor and the reversing valve. The heating system can achieve very high temperature control precision.

The invention discloses a carbon fiber cylinder detection system and method. The detection system comprises a hydraulic pressure tester, a hydraulic pressure assisted tester and a tightness tester; the hydraulic pressure tester comprises a test rack, a test operating table, a pressurizing device, a test case mounted on the test rack and a test cart for multiple cylinders to be tested to be placed steadily on; the hydraulic pressure assisted tester comprises a cylinder clamp, a conveying cart and a cylinder emptying and drying apparatus; the tightness tester comprises a tightness test unit and a second gas supply device supplying gas to multiple cylinders to be tested, and the tightness test unit is a cabinet type tightness test unit or a trough type tightness test unit; the method comprises the steps: first, hydraulic pressure testing; second, emptying and drying treatment; third, tightness testing. This system is reasonable in design and simple to operate and effective to use and enables the hydraulic pressure test and tightness test process of multiple carbon fiber cylinders to be finished simply and quickly.

The invention provides an explosion-proof structure of an energy-storing device, and the structure is characterized in that at least one hole communicated with the interior of the energy-storing device is arranged in a positive pole bolt of the energy-storing device, at least one hole communicated with the exterior of the energy-storing device is arranged in a negative pole bolt, and rubber explosion-proof valves or foil explosion-proof valves are arranged in the holes. The explosion-proof structure has the characteristics of saving space, being difficult to be damaged during the production or the use, and having consistent explosion-proof pressure and good sealing effect; the adoption of the design of the multiple holes can well protect the explosion-proof valves, and a ventilation channel of the explosion-proof structure can be increased for leading the energy-storing device to realize better pressure relief; the rubber valves can be selected, thereby having good sealing and explosion-proof effects, being difficult to be damaged due to external force, having very high consistency, being applied in most of the energy-storing devices, being unnecessary to carry out brazing, laser welding and other production process steps, and having the advantages of simpler production and lower cost; and the explosion-proof valves can also select aluminum foils, copper foils, aluminum alloy foils, copper alloy foils and the like, thereby well protecting the explosion-proof valves, and being applied in the positive pole bolts or the negative pole bolts.

The invention relates to a flameless pressure relief device. The flameless pressure relief device comprises an explosion venting plate and an explosion venting shell, wherein the outlet of the explosion venting shell is equipped with a fire-retarding layer which is of a multi-layer type structure; the mesh number of the outer layer of the fire-retarding layer is greater than that of the inner layer of the fire-retarding layer; a middle layer is arranged between the inner layer and the outer layer; the middle layer is a metal net layer which is formed by superposing and spreading single metal net layer by layer; netting wires between upper and lower layers of the metal net are crossed in a different-surface oblique-angle mode or are formed by arranging a plurality of metal rings in a multi-layer mode; metal wires of the fire-retarding layer are formed by knitting in a hooked needle mode; and the structure of each metal ring comprises a circular ring foil and a crossed blade, wherein thecrossed blade and the circular ring foil are connected at an oblique angle. The flameless pressure relief device disclosed by the invention can effectively gather dust and can prevent flame from spreading in addition to having the advantages of being great in pressure relief area and high in pressure relief efficiency, so that man-machine safety is further guaranteed.

The invention discloses a powder tank safety valve, a powder tank and a stirring station. The powder tank safety vale is arranged in a pressure-release port of the powder tank and comprises a positive pressure cover plate covering the pressure-release port. The positive pressure cover plate is attracted to a positive pressure cover plate magnet of the pressure-release port, the positive pressure cover plate magnet is fixedly connected with the powder tank, one end of a positive pressure cover plate limiting retaining rod is fixedly connected with the powder tank, and the other end of the positive pressure cover plate limiting retaining rod extends outwards. The positive pressure cover plate can move along the positive pressure cover plate limiting retaining rod. A limiter is arranged at the other end of the positive pressure cover plate limiting retaining rod. The powder tank safety valve can be instantly switched in the maximum travel when internal pressure of the powder tank is larger than the opening pressure. A valve bonnet of the safety valve is less prone to staying at certain position within a short travel, and pressure release within a short time is facilitated. The powder tank safety valve is large in opening travel and not easy to plug, threaded connection is reduced, and probability of damage to other parts due to bolt loosening is decreased.

The invention relates to the technical field of construction equipment, and in particular to mechanical equipment for preparing regenerated sand and stone materials by utilizing construction waste particles. The mechanical equipment comprises a storage structure, a storage chamber, a dust removal structure, a limiting structure, a discharging structure, a filtering structure and a driving structure; the driving structure is connected to the discharging structure on the storage structure, so that it is convenient for weight sensing through the discharging structure; when a cart is placed on thedischarging structure, the driving structure is used for driving the discharging structure to drive the cart to rotate for discharging, so that discharging is more convenient and faster, materials inthe cart can be completely discharged conveniently, and the discharging quality is greatly improved; the filtering structure is arranged, so that sewage can be conveniently filtered and recycled, itis convenient for pressure relieving on concrete blocks, broken stone blocks, and tile fragments; the dust removal structure used for removing dust of the concrete blocks, the broken stone blocks andthe tile fragments is connected to the driving structure, and the dust removal structure can be conveniently driven by the driving structure to conduct watering and dust removal on the concrete blocks, the broken stone blocks and the tile fragments in a multi-angle mode.

The invention relates to a flange instrument valve sealing testing device which comprises a base. A stationary clamp seat which is internally provided with a pressure conveying channel is fixedly arranged at one end of the base. The other end of the vase is provided with a movable clamping seat. The base is provided with a T-shaped rail. At least one T-shaped slide block is embedded into the T-shaped rail. The upper surface of the base is provided with a sawtooth-shaped rail. The movable clamping seat comprises an abutting supporting seat and a movable supporting seat. The movable supporting seat is arranged between the stationary clamp seat and the abutting supporting seat. The bottom of the movable supporting seat is provided with a T-shaped part which is slidably connected with the T-shaped rail. One end of the movable supporting seat is provided with a first sealing cover assembly which is used for sealing the outlet of the instrument valve. The abutting supporting seat is connected with the T-shaped slide block through a fastener. The abutting supporting seat is fixed on the base. The lower surface of the abutting supporting seat is provided with unidirectional stopping sawteeth which are connected with the sawtooth-shaped rail, thereby preventing movement of the abutting supporting seat to the other end of the base. The abutting supporting seat is provided with a pushing mechanism which is used for pushing the movable supporting seat for making the instrument valve abut against the stationary clamp seat.

The present invention discloses a carbon fiber gas cylinder hydraulic pressure test device and a hydraulic pressure test method, the carbon fiber gas cylinder hydraulic pressure test device comprises a hydraulic pressure test unit for testing deformation and pressure bearing capacity of a plurality of to-be-tested gas cylinders, and a hydraulic pressure auxiliary test unit located in front side of the hydraulic pressure test unit; the hydraulic pressure test unit comprises a test rack, a test console, a pressurization unit, a test case and a test vehicle; the hydraulic pressure auxiliary test unit comprises a gas cylinder fixture, a conveying vehicle and a gas cylinder water-pouring and drying treatment unit for performing water pouring and drying treatment on the to-be-tested gas cylinders, and a horizontal placement platform for horizontal placement of the gas cylinder fixture is arranged on the upper part of the conveying vehicle; and the method comprises the following steps: 1, hydraulic pressure test; and 2, water pouring and drying treatment. The carbon fiber gas cylinder hydraulic pressure test device is reasonable in design, easy to operate and good in use effect, a simultaneous testing process of the deformation and pressure bearing capacity of the plurality of gas cylinders can be completed easily, and the water pouring and drying treatment of the plurality of gas cylinders after testing can be performed easily.

The invention relates to the technical field of textile machines, in particular to a yarn guiding device for a textile machine. The yarn guiding device comprises a main body mechanism, and a pay-off mechanism is fixedly mounted on the main body mechanism; an adjusting mechanism is rotationally arranged in the main body mechanism in a matched manner; a pressure relief mechanism is mounted on the main body mechanism in a matched manner; the pressure relief mechanism communicates with a dust removal mechanism; the pay-off mechanism is fixed to the main body mechanism, so that yarn can be supplemented in time, the adjusting mechanism can be rotated conveniently, the adjusting mechanism can adjust the tightness degree of the yarn during conveying conveniently, and the phenomenon that the yarn is broken in the conveying process is prevented advantageously; and yarns are guided through the pressure relief mechanism during conveying, then the yarns extrude the pressure relief mechanism during conveying, the pressure relief mechanism exhausts internal gas to the dust removal mechanism, and when the dust removal mechanism slides, redundant fibers on the outer surfaces of the yarns can be cleaned when the yarns are conveyed out of the main body mechanism.

The invention discloses a negative pressure pulse oscillating tool which is integrally composed of four parts: an oscillating part, a power part, a transmission part and a rotating part. An upper joint is connected to an outer barrel of a spline through a thread, a plurality of reset disc springs are arranged in an oscillating short section, and a piston is in threaded connection to the oscillating short section to be sealed with a cylinder; a screw stator and a screw rotor provide power to the whole tool; a winding shaft is separately connected to the screw rotor and a water cap, and a bearing shaft connected to the water cap through a flat key forms the transmission part with a hard alloy bearing pack and a serial bearing pack; a movable valve rotates relative to a fixed valve and formsthe rotating part; a fluid enters into the tool through an inner runner of the upper joint, and is discharged from the tool from a bypass nozzle and the inner runner of a lower joint. The negative pressure pulse oscillating tool has the characteristics of being high in oscillating amplitude and capable of adjusting the pressure pulse, so that problems that a wear-reducing and resistance-reducing tool in the prior art is complex in structure, not obvious in wear-reducing and resistance-reducing effect and the like are solved, the drilling efficiency is improved and the drilling time is shortened.

The invention relates to the field of big data processing equipment, in particular to big data processing equipment which comprises a recording microphone, a supporting mechanism, a fixing mechanism,a wire-releasing mechanism, an adjusting mechanism and a disinfection structure. The adjusting mechanism is fixed to the wire-releasing mechanism, the adjusting mechanism is connected to the telescopic mechanism in a sliding mode, and the adjusting mechanism is adjusted through the wire-releasing mechanism, so that the angle of the supporting mechanism and the angle of the fixing mechanism are adjusted, the supporting mechanism is better fixed conveniently, labor is saved conveniently, position adjustment of the recording microphone is facilitated, sound recording is facilitated, and recordingmaterials are utilized conveniently. A disinfection structure for spraying a disinfectant is arranged on the supporting mechanism; and the disinfection structure is connected to the fixing mechanism,so that when the supporting mechanism and the fixing mechanism rotate, the disinfection structure is automatically driven to spray a disinfectant to the recording microphone, the operation is safer,cross infection is avoided, meanwhile, the fixing mechanism can be decompressed conveniently, and the angle between the supporting mechanism and the fixing mechanism can be adjusted more stably.

The invention discloses an explosion-proof gas compressor with high safety, and belongs to the field of gas compressors. The explosion-proof gas compressor with high safety comprises an installation base; an explosion-proof motor and a screw compressor main machine are fixedly installed at the top of the installation base; a screw is rotatably connected inside the screw compressor main machine; afirst butt pipe is fixedly connected to one side, close to the screw compressor main machine, of the explosion-proof motor through a bolt; and a second butt pipe is fixedly connected to one side, close to the explosion-proof motor, of the screw compressor main machine. According to the explosion-proof gas compressor with high safety, compared with the driving connection mode of a traditional compressor, the sealing performance is better, the leakage of inflammable and explosive gases in the screw compressor main machine is avoided, it is ensured that the compression pressure inside the screw compressor main machine is not too high to break a tank body, the safety capability is high, the explosion-proof and leakage-proof effects are better, and the safety is higher compared with the traditional gas compressor.

The invention discloses a waste rubber desulfurization and plasticization processing device and process, and relates to the technical field of waste rubber processing. The desulfurization effect is improved. The processing device specifically comprises an inner cylinder and an outer cylinder, the inner wall of the top of the outer cylinder is welded to the side wall of the top of the inner cylinder, the outer wall of one side of the outer cylinder is connected into a steam system through a steam conveying pipe, and the inner cylinder is filled with water. A stirring motor is fixed to the outerwall of the top of the inner cylinder through screws, and the output end of the stirring motor is rotationally connected with a rotating main shaft through a shaft coupling. The processing process comprises the following steps: taking out defiberized rubber powder, and mixing the defiberized rubber powder with a regenerant in proportion; and adding water into the inner cylinder, and introducing steam into the outer cylinder. By arranging the inner cylinder, the outer cylinder and other structures, rubber powder can be subjected to desulfurization treatment through a water-oil method, the stirring motor works to drive an impeller to rotate, water in the inner cylinder is lifted and stirred, and the rubber powder is effectively prevented from being deposited at the bottom of the inner cylinder.

The invention discloses an anti-pumping rubber bottle stopper which is of a T-shaped structure, and comprises a crown part and a stopper neck. The stopper neck is a hollow cylindrical body, and the outer diameter of the stopper neck is equal to or slightly less than the inner diameter of a bottle opening. One or more ledges are distributed on the outer surface of the stopper neck, and are parallel to the stopper neck. The circumcircle diameter of the leads is slightly larger than the inner diameter of the bottle opening. According to the invention, the internal pressure generated when the bottle stopper is placed into the bottle opening is released, thereby preventing the bottle stopper from being ejected out of the bottle opening by the internal pressure, avoiding the problem that the product quality is influenced by bottle stopper drop and the like, and finally increasing the availability of the product.

The invention relates to the technical field of engines, in particular to a piston assembly for a novel engine and the novel engine. The piston assembly comprises a piston and a variable hollow air valve, wherein a cross-shaped supporting frame is arranged in the middle of the piston, an air valve through hole is formed in the middle of the cross-shaped supporting frame, a plurality of matching lugs are arranged on the cross-shaped supporting frame, a valve seat is arranged at the position, between the piston and the end matching with the variable hollow air valve, of the piston, the variablehollow air valve comprises a hollow air valve body and a valve rod, a first annular groove is formed in the middle of the hollow air valve body and provided with a plurality of first deflation throughholes, a second annular groove is formed in the middle of the first annular groove, a plurality of matching through holes are formed in the second annular groove, the plurality of matching lugs penetrate through the plurality of matching through holes and are provided with a circle center valve seat, and a hollow plugging circular ring is further arranged on the first annular groove. The piston assembly for the novel engine and the novel engine have the advantages that exhaust is cleaner, mechanical friction is reduced, an intake valve is controlled in time, the compression ratio is variable,the heat efficiency and power are improved, and a two-stroke linear internal combustion engine exhaust Atkinson technology is used.