38results about How to "No loss of tightness" patented technology

The invention discloses a low-temperature storage transfer device and an operation method thereof. The low-temperature storage transfer device is used for conveying a transfer pot from the external environment to a refrigeration house and comprises a sealing component and a transmission component, wherein the sealing component comprises an inner door and an outer door; the inner door is provided with an inner lifting mechanism, the outer door is provided with an outer lifting mechanism, and a sealable buffer area is formed between the inner door and the outer door; the inner door is communicated with the refrigeration house, and the outer door is communicated with the external environment; the transmission component comprises an outer transmission mechanism and an inner transmission mechanism; the outer transmission mechanism is used for conveying the transfer pot from the external environment to the buffer area, and the inner transmission mechanism is used for conveying the transfer pot from buffer area to the refrigeration house. The low-temperature storage transfer device can ensure that a biological sample cannot be exposed in the normal-temperature environment after the transfer pot is uncapped, thereby reducing sample damage. The buffer area can prevent the inner part of the transfer pot from frosting, and the success rate of automatically storing and taking pipes is increased.

The invention provides a lithium-ion secondary battery which comprises a shell, a cap component used for sealing the shell in an insulating way, and a battery cell and electrolyte that are arranged in a cavity defined by the shell and the cap component, wherein a first pole ear and a second pole ear are led out from the battery cell; the first pole ear is electrically connected with the shell, and the second pole ear is electrically connected with the cap component; the cap component comprises an electric connection component and a sealing ring arranged at the outer side of the electric connection component; the electric connection component comprises a positive temperature coefficient (PTC) thermistor protector, an anti-explosion piece and an upper cap which are sequentially and electrically connected; the PTC thermistor protector is positioned between the second pole ear and the anti-explosion piece; the lower surface of the PTC thermistor protector is electrically connected with the second pole ear, the central part of the upper surface of the PTC thermistor protector is electrically connected with the lower concave part in the centre of the anti-explosion piece, and the edge around the upper surface of the PTC thermistor protector is provided with an insulating washer so as to be insulated with the edge around the anti-explosion piece; and PTC thermistor protector is provided with a vent hole. The lithium-ion secondary battery has higher safety performance and sealing performance, the internal structure of the battery is simplified, and the internal space of the battery is effectively utilized.

In a rotating compressor, an outer peripheral surface (40) of a partition member (23) which is secured firmly to a casing (10) so as to divide the inside of the casing (10) into a high-level pressure space and a low-level pressure space, is provided with a peripheral groove (42) for allowing for shrinkage of the casing (10) at a weld area where a trunk part (11) and end plate (12) of the casing (10) are welded together. As a result of such arrangement, the partition member (23) is strongly tightened by making utilization of such shrinkage, thereby not only enhancing sealability between the high-level pressure space and the low-level pressure space in the inside of the casing (10) but also preventing a drop in workability during assembling and an increase in cost.

The invention provides an indoor-temperature curing flame-retardant silicone sealant which comprises, by weight, 65-85 parts of hydroxyl-terminated polydimethylsiloxane, 15-25 parts of plasticizers, 30-50 parts of fillers, 2-8 parts of organic silicon cross-linking agents, 1-10 parts of coupling agents, 4-8 parts of flame retardants and 2-8 parts of catalysts. The flame retardants are mainly prepared from nano-scale magnesia-aluminum hydrotalcite and polyaspartic acid in a modified manner. The indoor-temperature curing flame-retardant silicone sealant has good flame resistance and excellent adhesive properties.

According to the present invention, a square can capable of securing high sealing performance even if the radius of curvature of the seamed part at its seamed corner part is reduced, enabling a reduction in the depth of its counter sink, reduced in size, and having excellent sealability and storage efficiency and a method and a device for double-seaming the square can. A secondary seaming roll (55) is guided by a model cam for secondary seaming having a model cam surface for secondary seaming formed in such a shape that it is swelled from a model cam surface for primary seaming outwards at the corner seamed part (5). Accordingly, the seamed part of the corner caulking part (5) is formed in such a shape that the seamed width thereof at the center of the corner seamed part is larger than the seamed width of the linear sealed part (4) of the can and is swelled outwards to absorb an increase in plate thickness at the corner seamed part. Also, a seaming wall part (6) is formed in a tilted seamed shape so that the overlap of a cover hook (8) with a body hook (10) of a prescribed amount can be secured without allowing the cover hook (8) to fall from the body hook (10) so as to maintain excellent sealability.

The invention discloses an fabricated wallboard with gap sealing and water leakage preventing functions, and belongs to the technical field of fabricated wallboards. The wallboard comprises a first fabricated wallboard, a second fabricated wallboard, a third fabricated wallboard, an extrusion outer plate, a sealing air bag, an inflating bag and a wallboard base material; and the third fabricated wallboard is fixedly mounted on the outer wall of one side of the second fabricated wallboard. According to the fabricated wallboard with the gap sealing and water leakage preventing functions, by arranging the inflating bag, when the wallboard is assembled at ordinary times, the inflating bag can be extruded by the extrusion outer plate of the external assembly wallboard, internal air can be transmitted into a sealing air bag through an air guide pipe, and the sealing air bag expands to be attached to the outer top of a sealing gasket. The expanded sealing air bag and the attached sealing gasket can effectively fill the assembly gap of the fabricated wallboard, external water spots can be effectively prevented from seeping into the fabricated wallboard through the assembly gap, a traditional simple sealing waterproof design of a sealing rubber strip is abandoned, the sealing air bag and the attached sealing gasket can continuously keep the sealing effect, and the situation that the sealing performance is reduced is avoided.

The air spinning device has a rotor housing under negative pressure and a rotating rotor inside the housing. In order to expose the rotor, a swivel housing is provided that can be swiveled away from the rotor housing, which rests tightly against the rotor housing during production. With the swivel housing closed, the rotor can be stopped by a brake lever with rotor brake. A form-fit locking device is connected to the brake lever, which ensures the closed position of the pivot housing and releases the lock by actuating the brake lever. A guide element is arranged on the pivot housing, which abuts against a guide surface on the brake lever to fix the braking position of the rotor brake when the pivot housing pivots. In addition to the form-fit locking device, a separately actuatable non-positive locking device is additionally provided. This not only achieves a good seal of the rotor housing, but also prevents an unintentional opening during braking.

The invention discloses a sealing method for impermeability test of concrete. The method comprises the following steps: step 1, maintaining a truncated-cone-shaped test block used for impermeability test, taking the test block in one hour before the impermeability test, cleaning the side surface of truncated-cone-shaped test block by wiping and removing burrs; step 2, uniformly smearing the side surface of truncated-cone-shaped test block with a weather-proof neutral silicone adhesive so as to form an annular sealing adhesive strip; step 3, cleaning a test block sleeve by wiping, sleeving the test block smeared with the weather-proof neutral silicone adhesive with the test block sleeve; step 4, spraying the weather-proof neutral silicone adhesive into gaps formed in joint of the test block and test block sleeve, flattening and compacting the gaps so as to form an annular adhesive ring on the surfaces of the gaps and carrying out indoor standing for 5.5 to 6.5 h until the annular adhesive ring on the surfaces of the gaps, thereby obtaining a treated test block; and step 5, loading the treated test block on an impermeability instrument for impermeability test. The method provided by the invention improves the efficiency of the impermeability test of concrete, reduces work intensity of testing personnel, saves cost and decreases environmental pollution.

The invention provides a high-temperature generator for a lithium bromide cold and warm water unit and a pipe expanding method. The high-temperature generator comprises pipe plates and heat exchanging pipes, and the heat exchanging pipes are inserted into holes of the pipe plates. The heat exchanging pipes are the titanium heat exchanging pipes, and the insides of the holes of the pipe plates and / or the outsides of the pipe ends of the titanium heat exchanging pipes are coated with silicone oil. The invention further provides the pipe expanding method of the high-temperature generator for the lithium bromide cold and warm water unit. According to the high-temperature generator for the lithium bromide cold and warm water unit and the pipe expanding method, on the one hand, by adopting the titanium heat exchanging pipes and compared with copper heat exchanging pipes, the quantity of utilized materials can be reduced by more than 70%; and on the other hand, the degree of difficulty of pipe expanding can be lowered, and airtightness is greatly improved.

The present invention provides a synthetic resin cap fitted on the mouth section of a container filled with a carbonated beverage. The cap is provided with a top plate and a cylindrical section extending down from the rim thereof. On the inner surface of the top plate, a ring-shaped inner seal projection that is fitted inside the mouth section and an outer seal projection that abuts the outer surface of the mouth section are formed. On the outer surface of the inner seal projection, a ring-shaped contacting protrusion that contacts the inner surface of the mouth section is formed. The outer seal projection has an inner surface, the internal diameter of which decreases towards the leading edge, and the smallest internal diameter section, which is the lower end of the inner surface, contacts the outer surface of the mouth section at a position that is towards the container body side and is at a distance from the open end.

The invention relates to a thrust bearing with a novel structure for a steering axle of a commercial vehicle. The invention belongs to the technical field of rolling bearings. The invention is mainly used for solving the problem that due to the existence of an outer cover in the thrust bearing for the steering axle, the mounting precision and the using performance are affected. The thrust bearing is mainly characterized by comprising an outer cover, a shaft ring, a seat ring, a sliding ring, a lantern ring, or a rolling body and a retaining frame, wherein a seat ring annular seal ring is arranged at the inner diameter of the seat ring; a shaft ring annular seal ring is arranged at the inner diameter of the shaft ring; a step is arranged at the chamfered part of the large end face of the shaft ring; the outer cover has a bottom face which is narrower than the large end face of the shaft ring, one end of the outer cover is lower than the outer end face of the seat ring, the outer bottom face at the other end of the outer cover is lower than the outer end face of the shaft ring, one end face of the outer cover is jointed with the oblique slope of the seat ring, and the bottom face of the outer cover is jointed with the step of the shaft ring; and a cylindrical seal ring is arranged between the shaft ring and the seat ring. The thrust bearing provided by the invention has the characteristics of good sealing and using performance and good precision in mounting and use, and is mainly used for the steering axle of the commercial vehicle.

Provided is a cryogenic fluid coupling (30) in which coalescence of male (10) and female coupling (20) is maintained even when the cryogenic fluid coupling is used alone while solving ice and gas purging problems, and which has satisfactory workability and a wide scope of application. The cryogenic fluid coupling is used to supply of cryogenic fluid between a storage tank and a mobile unit. A coalescing lock mechanism (8), which maintains or releases the coalescence of the male coupling member (10) and the female coupling member (20) in association with the coalescing linkage mechanism (1), is provided.

The invention discloses a high and low voltage electric porcelain arrester, which comprises an arrester post and a post insulator, wherein the upper surface of the arrester post is fixedly provided with the post insulator through adjusting bolts; a JQ line interface is arranged in the upper end of the post insulator; an electrode bar is arranged at the right end of the JQ line interface; the rightside surface of the arrester post is also connected with a cantilever beam through a fixing bracket; an arrester body is arranged on the upper surface of the cantilever beam; the lower end of the arrester body is inlaid into the inner wall of the cantilever beam through an arrester mounting device; and a hemispherical electrode is also fixedly arranged at the upper end of the arrester body. A certain gap exists between designed electrodes according to the operation characteristics and operation safety requirements of a contact network, so that the bearing capacity of the arrester body is reduced, the service life of the arrester is prolonged, the whole arrester is arranged more stably by using a mounting hoop, and the high and low voltage electric porcelain arrester is simple in mountingstructure and high in practicability.

The invention provides a flame retardant polyurethane sealant which contains the following components in parts by weight: 65-85 parts of polyurethane resin, 6-12 parts of styrene-butadiene-styrene segmented copolymer, 2-5 parts of a plasticizer, 30-50 parts of filler, 2-8 parts of a cross-linking agent, 1-10 parts of a coupling agent, 1-3 parts of polyethylene wax, 4-8 parts of a flame retardant and 1-3 parts of an ultraviolet absorbent. The flame retardant is mainly prepared by modification with nanoscale magnesia-alumina hydrotalcite and polyaspartic acid. The flame retardant polyurethane sealant not only has good flame retardant performance, but also has good bonding performance.

The invention discloses a halogen-free flame-retardant polyurethane sealant which are prepared from the following components in parts by weight: 50 to 60 parts of polyurethane resin, 6 to 12 parts ofstyrene-butadiene-styrene segmented copolymer, 2 to 5 parts of plasticizer, 30 to 50 parts of filler, 2 to 4 parts of castor oil, 2 to 8 parts of cross-linking agent, 1 to 10 parts of coupling agent,1 to 3 parts of polyethylene wax, 4 to 8 parts of flame retardant, 0.5 to 1.5 parts of zinc borate and 1 to 3 parts of ultraviolet absorbent. The flame retardant is prepared mainly from nanoscale Mg-Al hydrotalcite and polyaspartic acid by modification. The halogen-free flame-retardant polyurethane sealant not only has excellent flame retardance and has no pollution, but also has excellent adhesive property.

The invention discloses a reversing sealing device of a low-temperature-resistant combined ring spacer sleeve valve rod forming valve. An electromagnetic pilot valve is arranged on one side of a valvebase, a piston is arranged inside an air inlet cavity, a valve body is arranged on one side of the valve base, a valve rod is arranged inside a working cavity, and one end of the piston is installedin a first inserting groove; a plurality of spacer sleeves are arranged on one side of the outer part of the valve rod, and a boss is arranged in the middle of one side of the two end surfaces of thespacer sleeves; a low-temperature-resistant combined ring is arranged between every two adjacent spacer sleeves, outer rings and lip edges are integrally formed, grooves matched with the bosses are formed between the outer rings and the lip edges, and one side of a valve body is provided with an end cover. According to the device, two end faces of the low-temperature-resistant combined ring are designed into groove structures correspondingly, and two end faces of the spacer sleeves are designed to be of boss structures; the running resistance at the moment of reversing the valve rod is reduced, meanwhile, the sealing performance of the electromagnetic reversing valve is not reduced after the reversing is completed, then the low-pressure starting and reversing performance of the electromagnetic reversing valve are further reduced, and the electric control reversing performance of the electromagnetic reversing valve is greatly improved.

The invention provides a lithium-ion secondary battery which comprises a shell, a cap component used for sealing the shell in an insulating way, and a battery cell and electrolyte that are arranged in a cavity defined by the shell and the cap component, wherein a first pole ear and a second pole ear are led out from the battery cell; the first pole ear is electrically connected with the shell, and the second pole ear is electrically connected with the cap component; the cap component comprises an electric connection component and a sealing ring arranged at the outer side of the electric connection component; the electric connection component comprises a positive temperature coefficient (PTC) thermistor protector, an anti-explosion piece and an upper cap which are sequentially and electrically connected; the PTC thermistor protector is positioned between the second pole ear and the anti-explosion piece; the lower surface of the PTC thermistor protector is electrically connected with the second pole ear, the central part of the upper surface of the PTC thermistor protector is electrically connected with the lower concave part in the centre of the anti-explosion piece, and the edge around the upper surface of the PTC thermistor protector is provided with an insulating washer so as to be insulated with the edge around the anti-explosion piece; and PTC thermistor protector is provided with a vent hole. The lithium-ion secondary battery has higher safety performance and sealing performance, the internal structure of the battery is simplified, and the internal space of the battery is effectively utilized.

The invention relates to a roller, comprising an annular hollow roller sleeve (4) supported on an anti-torsion shaft (5), for processing a fibre amplitude surface (2) and forming a roller clearance together with a matching roller (3), wherein an annular cavity between the roller sleeve (4) and the shaft (5) is divided into at least two chambers (8, 9) filled with pressure fluids of different pressures so as to reach roller expectation deflection through at least two axial sealing pieces (6). To reduce vibration of the roller sleeve in operation, pressure is applied on the roller sleeve (4) through at least one actuator (11) supported on the shaft.

The invention belongs to the field of bearings, and relates to a bearing and a seal assembly thereof, in particular to a high-temperature bearing and a seal assembly thereof. The existing seal washer with a standard structure is removed, outside diameters of a seal ring and a bearing inner ring are matched to realize sealing, the dimensions and quantity of spare parts are reduced, the angle and elastic deformation of a seal lip are designed scientifically, the sealability is not reduced, and the friction is reduced.

The present invention addresses the problem of providing a diaphragm valve which has a simple configuration, effectively prevents the generation and accumulation of reaction products in a valve body seal part, suppresses occlusion during valve closing, and thus can satisfactorily maintain the isolation properties of the valve even after multiple times of opening and closing and long-term use. Thediaphragm valve has a structure in which a diaphragm piece and a piece holder for holding a conical piece are coupled in a valve housing, the outer peripheral edge of an inner diameter opening of thediaphragm is clamped by the piece holder and the diaphragm piece, the diaphragm piece is held by a bonnet so as to be capable of moving up and down, and the bonnet and the outer peripheral edge of thediaphragm are clamped so that the piece is suspended from the diaphragm. The diaphragm valve is provided with a conical sealing part formed on the conical surface of the piece and a cut-off valve seat part formed on the primary side opening edge of the valve box, reaction products generated on the conical sealing part are cut off through sliding movement of the piece, and the conical sealing partis sealed through the cut-off valve seat part.

The present invention addresses the problem of providing a plastic cell that maintains conductivity without losing sealability even when a plastic substrate is deformed into a free shape having an uneven surface or a curved surface, and a method for manufacturing the plastic cell. A plastic cell according to the present invention has, in this order: a first plastic substrate; a first transparent conductive layer; a fluid layer; a second transparent conductive layer; and a second plastic substrate. The plastic cell also has sealing part that includes a portion of the first plastic substrate orthe second plastic substrate, wherein the portion of the first plastic substrate or the second plastic substrate is deformed and seals the fluid layer. The sealing part has: a first sealing section that disconnects passage of electric current between the first transparent conductive layer and the second transparent conductive layer; and a second sealing section that allows passage of electric current to either the first transparent conductive layer or the second transparent conductive layer.

Seal ring provided between rotating portion and fixed portion in rotating machine of steam turbine and the like is improved to carry out predetermined movement accurately so as not to cause deterioration of sealing performance. Seal ring is split into upper, lower, right side and left side seal ring pieces 1a, 1b, 1c, 1d, contacting slidably with each other via split planes 3a, 3b, 3c, 3d with spaces 9a, 9b, 9c, 9d being formed in the respective split planes. Springs 4a, 4b, 4c, 4d are interposed in the spaces 9a to 9d for activation in upward and downward directions. The upper and lower seal ring pieces 1a, 1b are engaged with seal ring guides 5a, 5b and 6a, 6b and the right side and left side seal ring pieces 1c, 1d are engaged with seal ring guides 7, 8 so that all of the seal ring pieces 1a to 1d are slidable in the upward and downward directions. Further, on the respective tips of the seal ring guides 5a, 5b and 6a, 6b, spaces 10a, 10b of the upper seal ring piece 1a and spaces 10c, 10d of the lower seal ring piece 1b are formed and springs 11a, 11b, 11e, 11d are provided in the spaces 10a to 10d for activation in the upward and downward directions. The respective seal ring pieces are prevented from skirmishing with each other and the upper and lower seal ring pieces move toward the inner side at the time of load so as to make narrower the clearances between seal fins 2a, 2b and corresponding rotor surface.

The invention discloses a manufacturing process for a high temperature-resistant and high pressure-resistant easy-open lid. The manufacturing process comprises the following steps of: selecting an aluminum sheet material; coating a colorless epoxy organic silicon coating on the sheet material surface which forms the outer surface of the easy-open lip and drying; coating a phenolic resin coating on the other surface and drying; and performing hacking, edge-rounding, molding, forming large and small bubbles, notching, edge-protecting, ring-nailing and gluing on the sheet material, and forming a finished product of the easy-open lid. The easy-open lid manufactured by the manufacturing process has high temperature resistance and high pressure resistance, and can perform high-temperature and high-pressure sterilization treatment without losing tightness.

The invention relates to a bottle cap which comprises an upper cap body, a middle section and an inner plug. The middle section is provided with a lower opening portion communicated with an upper opening portion and installed on a bottle opening portion in a sleeved mode, the outer wall of the upper opening portion is provided with external threads, the upper cap body is provided with internal threads matched with the external threads of the upper opening portion, the inner plug is in the shape of a hollow ring, the outer portion of the inner plug is wrapped by at least one layer of metal foil paper, a metal pipe which can move in the direction of the inner portion of a bottle to puncture or jack the metal foil paper is arranged in the inner plug, the inner plug comprises a constraint section and a seal section, the inner diameter of the constraint section is matched with the outer diameter of the metal pipe, and the outer diameter of the seal section is matched with the inner diameter of the bottle opening. The bottle cap is novel in conception and easy to manufacture, avoids the possibility that liquor makes contact with plastic when the liquor is stored, and therefore plasticizers in the plastic bottle cap are prevented from dissolving into the liquor; through the metal pipe, the contact time and the contact frequency of the liquor and the plastic are reduced when the bottle cap is used, tiny plasticizers enter the liquor, and therefore the plasticizers are controlled in a very low safety range.

A flow spinning device, comprises a revolving cup housing in negative pressure, and a rotation spinning cup is in the housing. To reveal the spinning cup, a swing housing can swing from the revolving cup is located, and is close to the revolving cup housing. The spinning cup stops rotating by a brake lever when the swing housing is closed. A interlock device is connected to the brake lever, to swing the make position of outer cover and remove the interlocking by way of handling the brake lever. A guiding parts is located on the swing housing, and plays the direction face of fixed revolving cup stopper application position on its subsides when the swing of swing outer cover is leaned on and is lain in the brake lever to one. Besides the interlock, an interlock which is drived alone is still located. So that the revolving cup is sealing well, and avoid the unexpected operation.

The present invention addresses the problem of providing: a plastic cell having a sealing portion that maintains the ability to remain sealed even when a plastic substrate deforms into any shape having irregularities and curved surfaces; and a method for manufacturing the plastic cell. The plastic cell according to the present invention has a first plastic substrate, a first transparent conductivelayer, a fluid layer, a second transparent conductive layer, and a second plastic substrate in this order. Additionally, the plastic cell has a sealing portion in which a portion of the first plasticsubstrate or the second plastic substrate is deformed so as to seal the fluid layer. The sealing portion includes a corrugated region that satisfies the following expression (1): P <= 40A (1) Where Prepresents the corrugation pitch, and A represents the corrugation amplitude.

Seal ring provided between rotating portion and fixed portion in rotating machine of steam turbine and the like is improved to carry out predetermined movement accurately so as not to cause deterioration of sealing performance. Seal ring is split into upper, lower, right side and left side seal ring pieces 1a, 1b, 1c, 1d, contacting slidably with each other via split planes 3a, 3b, 3c, 3d with spaces 9a, 9b, 9c, 9d being formed in the respective split planes. Springs 4a, 4b, 4c, 4d are interposed in the spaces 9a to 9d for activation in upward and downward directions. The upper and lower seal ring pieces 1a, 1b are engaged with seal ring guides 5a, 5b and 6a, 6b and the right side and left side seal ring pieces 1c, 1d are engaged with seal ring guides 7, 8 so that all of the seal ring pieces 1a to 1d are slidable in the upward and downward directions. Further, on the respective tips of the seal ring guides 5a, 5b and 6a, 6b, spaces 10a, 10b of the upper seal ring piece 1a and spaces 10c, 10d of the lower seal ring piece 1b are formed and springs 11a, 11b, 11e, 11d are provided in the spaces 10a to 10d for activation in the upward and downward directions. The respective seal ring pieces are prevented from skirmishing with each other and the upper and lower seal ring pieces move toward the inner side at the time of load so as to make narrower the clearances between seal fins 2a, 2b and corresponding rotor surface.

The invention relates to a sliding plate chassis sealing structure which comprises a vehicle body arranged on the upper portion of a vehicle and used for providing installation support for interior trim and providing containing space for passengers or goods; the sliding plate chassis is arranged at the lower part of the vehicle, connected with the vehicle body and used for bearing the vehicle body; the sliding plate chassis sealing strip is arranged between the sliding plate chassis and the vehicle body and is used for sealing the sliding plate chassis and the vehicle body; and the double-sided tape is arranged between the sliding plate chassis and the sliding plate chassis sealing strip and is used for connecting the sliding plate chassis and the sliding plate chassis sealing strip. According to the sealing structure, the sliding plate chassis sealing strip is bonded to the sliding plate chassis through the adhesive tape, the sliding plate chassis is connected with the vehicle body, the first sealing lip and the second sealing lip of the sliding plate chassis sealing strip make elastic contact with the vehicle body sealing face, and the sealing effect is achieved. The sealing structure has the advantages of being low in cost, convenient to install and capable of achieving repeated disassembly and assembly of the sliding plate chassis without losing the sealing performance.