58results about How to "Achieve secondary sealing" patented technology

The invention discloses a special attachment joint for introducing ammonia gas and ammonia water. The special attachment joint comprises a male main body, a female main body, an outer ring, a valve core, a spring and a sealing element. The outer ring sleeves the front end of the female main body and is matched with the male main body inserted into the female main body by use of threads, and therefore, the male main body and the female main body can be fastened and locked; a gas guide channel is formed in the male main body and the female main body, and the two gas guide channels are the same in shape; a valve core is mounted in each of the two gas guide channels by use of a guide part and a spring; the front end of the valve core extends out of the opening of the gas guide channel. The special attachment joint is simple in structure and reasonable in design; the male main body and the female main body are sealed twice no matter in a disconnected state and a connected state, and an ammonia storage tank can be used more safely.

The invention relates to a two-way inflation pump comprising a barrel. A working chamber is arranged in the barrel, a first one-way air outlet valve communicated with the working chamber to allow air to be discharged from the working chamber is arranged at one end of the barrel, a cover is arranged at the other end of the barrel, a first one-way air inlet valve communicated with the working chamber to allow air to be guided into the working chamber is arranged on the cover, and a push-pull tube is arranged in the middle of the cover penetratingly. One end, extending into the barrel, of the push-pull tube is connected with a piston by which the working chamber is divided into a front working chamber and a rear working chamber. A cavity communicated with the atmosphere through the push-pull tube is formed in the piston. A second one-way air inlet valve, allowing air to be guided into the rear working chamber when the piston is pulled back, is arranged between the cavity and the rear working chamber. The other end of the push-pull tube is combined with a handle. A second one-way air outlet valve, which is communicated with the front working chamber and allows air to be discharged from the front working chamber when the piston is pulled back, is arranged on one side of the wall of the barrel. Inflation can be performed during reciprocation of the piston, and use efficiency is high.

The invention provides a red wine cork capable of being removed fast and aims to provide a cork which can be removed fast without a corkscrew and can realize secondary sealing. The red wine cork comprises a cork body (1), wherein the cork body (1) is provided with a through hole (2) penetrating through the cork body (1); a pull rod (8) is arranged in the through hole (2); the diameter of the middle part (2-2) of the through hole is greater than those of the front end (2-1) and the rear end (2-3) of the through hole; the pull rod (8) comprises a front cork (3), a rear cork (6) and a connecting rod (5) for connecting the front cork (3) with the rear cork (6); a pull handle (7) is arranged on the rear cork (6); an elastic piece is arranged at the joint of the front cork (3) and the connecting rod (5); at least one of the front cork (3) and the rear cork (6) is in interference fit with the through hole (2). The red wine cork provided by the invention is used as a wine cork.

The invention discloses a bathroom cold and hot water constant-temperature device. The bathroom cold and hot water constant-temperature device comprises a valve core, a manual adjusting knob, a motor adjusting knob, a control circuit board and a power supply, wherein the four sides of the valve core are provided with a manual adjusting knob mounting hole, a cold water interface, a motor adjusting knob mounting hole and a hot water interface in sequence; the upper part of the valve core is provided with a warm water outlet; a power supply accommodating groove is formed in the lower part of the valve core; a mixed channel, a cold water channel, a hot water channel and a warm water channel are formed inside the valve core; the manual adjusting knob mounting hole is communicated with the motor adjusting knob mounting hole through the mixing channel; the cold water interface is communicated with the mixing channel through the cold water channel; the hot water interface is communicated with the motor adjusting knob mounting hole through the hot water channel; the manual adjusting knob mounting hole is communicated with the warm water outlet through the warm water channel. By adopting the bathroom cold and hot water constant-temperature device, the technical problems of cold and hot water sealing and flow adjustment can be solved.

The invention discloses a waterproof vent valve, which comprises a screw cap, a screw stem, a waterproof vent film and an insert with a hole. The insert can be embedded in the screw cap to contain the waterproof vent film and seal the waterproof vent film in the screw cap. After the scheme is adopted, the invention closely encapsulates the waterproof vent film and a plastic valve together through the simple inset structure and realizes secondary sealing through further hot melting.

The invention provides an anti-falling high-sealing glass curtain wall mounting structure, and belongs to the technical field of glass curtain walls. The anti-falling high-sealing glass curtain wall mounting structure comprises a curtain wall steel structure, wherein the inner side of the curtain wall steel structure is fixedly connected with a mounting square frame; an outer sealing structure is arranged between a curtain wall frame and the curtain wall steel structure; an inner sealing structure is arranged between the curtain wall frame and the mounting square frame; the curtain wall steel structure is connected with the curtain wall frame through a connecting assembly; and the mounting square frame is connected with the curtain wall frame through a side reinforcing structure. The anti-falling high-sealing glass curtain wall mounting structure solves the problems that during mounting of a glass curtain wall, glass is compressed by a metal plate on the steel structure, the steel structure and the metal plate are locked through bolts, during construction, more than three workers are required to operate, construction is complicated, the personnel cost is high, the mounting efficiency of the glass curtain wall is greatly reduced, meanwhile, the glass curtain wall is sealed by injecting sealant generally, the sealant easily falls off after being used for a long time, the sealing effect is poor, and water seepage easily occurs.

The invention relates to equipment belonging to the field of converter steelmaking, and in particular relates to an oxygen gun opening nitrogen sealing device. The nitrogen sealing device comprises a nitrogen sealing plug and a nitrogen sealing base, wherein the nitrogen sealing plug comprises an upper big-port end and a lower small-port end; matched sealing surfaces are formed by the outer surface of the nitrogen sealing plug and the inner surface of the nitrogen sealing base; an oxygen gun opening is formed in the nitrogen sealing base; an oxygen gun is sleeved with the nitrogen sealing plug; a nitrogen sealing round hole I is formed in the lower part of the nitrogen sealing plug; the nitrogen sealing round hole I is communicated with a plurality of nitrogen channels I; a nitrogen sealing round hole II is formed in the upper part of the nitrogen sealing plug; the nitrogen sealing round hole II is communicated with a plurality of nitrogen channels II; a conical cavity is formed in the nitrogen sealing plug. The nitrogen sealing device disclosed by the invention has the advantages of being capable of sealing twice and decompressing high-pressure smoke, and good in sealing effect.

The invention relates to the field of warehousing and transportation, in particular to a chemical liquid transportation storage tank comprising a storage tank, a base, a drainage structure, a sealingstructure, a limiting structure and a leak-proof structure; the bottom end of the storage tank is provided with a base used for handling; the bottom end of the storage tank is provided with the drainage structure used for draining chemical liquid; the top end of the storage tank is provided with the sealing structure used for sealing, and the bottom end of the sealing structure is provided with the leak-proof structure which abuts against the storage tank; and the limiting structure used for limiting is arranged between the storage tank and the sealing structure. According to the chemical liquid transportation storage tank, the storage tank is removably connected to the sealing structure, thereby facilitating adding of the chemical liquid into the storage tank, and the recycling use of thestorage tank is achieved; the leak-proof structure is arranged between the sealing structure and the storage tank, so that the secondary seal of the storage tank is achieved, and the safety performance of handling and storage is improved; the bottom end of the storage tank is provided with the base, thereby facilitating handling of the storage tank through a forklift, and meanwhile a plurality ofstorage tanks are easy to stack through cooperation of the sealing structure.

The invention relates to a novel energy-saving passive window, and belongs to the technical field of building energy saving. The novel energy-saving passive window comprises an inner window frame, wherein a window sash; hollow glass is arranged in the window sash; a window sash sealing strip is arranged between the inner window frame and the window sash; an outer window frame is arranged on the outer sides of the inner window frame and the window sash; the inner edge of the outer window frame is flush with the inner edge of the window sash; secondary frame sealing rubber strip is arranged between the outer window frame and the hollow glass; a gasket is filled in a connecting gap of the window sash and the hollow glass; a glass edge sealing rubber strip is arranged between one side, surrounding the hollow glass, of the window sash, and the hollow glass. The novel energy-saving passive window meets the requirement, on a passive window, of a passive building in an extreme cold state, is good in heat-preservation effect, and is energy-saving and environmentally friendly.

The invention provides a specialized combined type sealing device for an incinerator. The specialized combined type sealing device for the incinerator comprises a rotary kiln, a labyrinth sealing partand a graphite block sealing part, wherein the labyrinth sealing part and the graphite block sealing part are arranged at the two ends of a kiln body of the rotary kiln; the labyrinth sealing part comprises a support, a flange, a sealing ring, a friction plate and a sliding key; the support is arranged on the rotary kiln; the flange is arranged on the support; the sealing ring is arranged at theleft side of the flange; the friction plate is arranged at the left side of the sealing ring; labyrinth sealing is formed by the flange, the sealing ring and the friction plate; and the sliding key isarranged at the lower end of the sealing ring. The specialized combined type sealing device for the incinerator has the beneficial effects that the specialized combined type sealing device for the incinerator has a good sealing effect and a stable performance and is simple in structure by adopting rotary kiln feeding and discharging combined type sealing; gas leakage and dust leakage are avoided;the working efficiency of the rotary kiln is improved; the secondary pollution is reduced; the environmental protection requirements are satisfied; and the cost is saved.

The invention discloses a particle powder body material level detection device. The deviceiswelded in atilted mode on the hole circumferences on the side wall of a tank body, and onthe bottom head of a clamp openedwith a center hole; the device is insertedclosely in thecenter hole of the bottom head of the clamp, and in a threaded sealing piece opened with a threaded hole; the device is spun in the threaded hole, and passes through the capacitance material level gage of the side wall hole; the threaded sealing piece is pressedon the top head of the clampwithin the bottom head of the clamp; the bottom head of the clamp and the top head of the clampare tightly clamped togetherin a sleeving mode. The material level detection device can detect accurately under the bad environment of material high viscosity and high vibrations, and is convenient for assembly line cleaning.

The invention provides a high-temperature seal assembly. The high-temperature seal assembly comprises a base plate and a plurality of seal blocks. The base plate is a round isolation plate, a round through hole is formed in the circle center of the base plate, the seal blocks are arranged on the base plate along the circumference, the seal blocks are composed of seal block bodies and backing plates, the seal block bodies are ceramic fiber specially-shaped folding blocks, the backing plates are specially-shaped fiber backing plates, the specially-shaped fiber backing plates make contact with the base plate, the seal blocks are fixedly arranged on the base plate, a round baffle is further arranged on the base plate, and the baffle is connected with the seal blocks internally and is in clearance fit with the seal blocks. According to the high-temperature seal assembly, existing heat-resistant seal materials are replaced by the seal blocks formed by the ceramic fiber specially-shaped folding blocks and the specially-shaped fiber backing plates, therefore, expenditures can be cut down, cost can be reduced, meanwhile, the service life of equipment can be prolonged, and losses, caused by equipment replacement and the like, in manpower, material resource, yield and the like are reduced accordingly.

The invention discloses a self-locking sealing pipeline connecting device which comprises a connecting pipe and pipelines arranged on the two sides of the connecting pipe, convex rings are fixedly arranged on the two sides in the connecting pipe, each convex ring is composed of a gradually-shrinking ring and a gradually-expanding ring, an embedding groove is formed in the circumference of the inner wall of each gradually-expanding ring, and a rubber pad is fixedly arranged in each embedding groove. The pipeline connecting device relates to the technical field of pipeline connection and is compact in structure, the connecting cap is screwed to the connecting pipe, so that the connecting cap pushes the pipeline to abut against the rubber pad of the gradually-expanding ring, primary sealing is achieved, meanwhile, the connecting cap enables the pressing ring to be embedded into the annular groove, and therefore the sealing effect of the pipeline is improved. And due to the arrangement of the locking structure, the phenomenon that the threads are loosened due to the fact that the connecting cap rotates due to external factors can be avoided, and convenience is brought to use of people.

The invention belongs to the technical field of microbiological detection, and particularly relates to a microbiological detection bag and a detection method. The microbiological detection bag comprises a storage bag, a conveying pipe, an end cover and a clamping ring, wherein the outer side wall of the conveying pipe is sleeved with the clamping ring, a cavity is formed in the clamping ring, andthe cavity is communicated with the inner side wall of the material conveying pipe; a locking unit is mounted in the cavity; the locking unit comprises a hinge rod, a push rod, a fixing plate and a pressing plate. Through cooperation of the storage bag, the conveying pipe, the end cover and the clamping ring, secondary sealing of the detection bag is achieved, and microbial infection is avoided; in the resetting process of the hinged rod, the hinged rod extrudes the inner tube, so that the inner tube is elastically deformed until being sealed after being pressed, secondary sealing of the detection bag is realized, cross infection between bacteria on hands and microorganisms in a culture solution when a worker opens and closes the detection bag is effectively avoided, and the accuracy of microbiological detection is guaranteed.

The invention belongs to the technical field of sealed packaging containers, and particularly relates to a blister packaging box which comprises a box body and a box cover. The edge at the upper end of the box body is provided with a first arc, the outer side at the upper end of the box body is provided with a second arc, and the upper end of the box body is covered with the box cover. The secondarc is arranged at the outer side at the lower end of the first arc, the inner side of the outer end of the box cover is concave, and a clamping arc is arranged on the inner surface of the outer sideof the box cover. A concave cavity at the outer end of the box cover can be tightly connected with the edge at the upper end of the box body in a clamped mode, the outermost end of the box cover can be inserted into a groove at the edge of the upper end of the box body, and the clamping arc can be fixedly clamped with the second arc. The blister packaging box is mainly used for solving the problems that in the prior art, when cheese is contained in the blister packaging box for transportation, a packaging box cover is prone to falling off, the cheese is polluted, and meanwhile the cheese leakage is prone to occurring when a transportation vehicle jolts.

The invention relates to a waterproof electrical control box, comprising a controller box body, a first sealing piece, a lining board, a second sealing piece and a baffle, wherein the baffle, the second sealing piece, the lining board and the first sealing piece are sequentially stacked from outside to inside and fastened at an opening of the controller box body by virtue of fastening screws. In the waterproof electrical control box provided by the invention, wiring ducts with open ends consistent in orientation are utilized, arranged wiring harnesses can be rapidly arranged in the wiring ducts at one time, and waterproof gaskets arranged at intervals are utilized for realizing secondary sealing on the controller box body, so that waterproof performance of the waterproof electrical controlbox is improved.