100results about How to "Reliable sealing structure" patented technology

Powder desiccant is mixed into a seal which adheres a first substrate to a second substrate, thereby sealing a display region. Almost no moisture permeates through the outer surfaces of the substrates sandwiching the display region, while moisture permeating through the seal is adsorbed by the desiccant. An emissive layer is thereby prevented from deterioration due to moisture. By covering the display region with a resin sealing layer composed of resin having desiccant mixed therein, the display region can reliably be protected from moisture. By forming a groove in the substrate and placing a desiccant therein, moisture can be further reliably adsorbed.

A fixed shaft type fluid dynamic bearing motor having two interfaces of a lubricant at least, in which a channel leading from near the outer region of a rotating sleeve top end to near the periphery of the bottom of the sleeve is formed in the sleeve. The lubricant near the outer region of a rotating sleeve top end is thrown out into the channel by centrifugal force, and further conveyed to near the periphery of the bottom of the sleeve by centrifugal force and/or by slanted channel in circumferential direction. A dynamic-pressure generating groove for pumping the lubricant toward the top end of the sleeve is formed between the fixed shaft and the sleeve. The dynamic-pressure generating groove and the centrifugal force cause the circulation of the lubricant, thereby sealing the lubricant. According to the invention, axial space smaller than that of tapered seals can be utilized to achieve a low-profile recording disk drive.

A fixed shaft type fluid dynamic bearing motor having two interfaces of a lubricating fluid. A channel leading from near the top end of the inner periphery of a rotating sleeve to near the periphery of the bottom of the sleeve is formed in the sleeve. The lubricating fluid flows into the channel by centrifugal force, and further conveyed to near the periphery of the bottom of the sleeve by centrifugal force and/or by slanted channel in circumferential direction. A dynamic-pressure generating groove for pumping the lubricating fluid toward the top end of the sleeve is formed between the fixed shaft and the sleeve. The dynamic-pressure generating groove and the centrifugal force cause the circulation of the lubricating fluid, thereby sealing the lubricating fluid. A cone bearing or a cylindrical bearing can be used for bearing configuration. Also, the axial space smaller than that of tapered seals can be utilized.

The invention discloses a double-hollow glass ceiling module with a film suspended therein. An optical control film serves as a middle layer, and an internally suspended film structure frame, a mounting structure frame, a reinforcing separating strip and glass are sealed into an integral double-hollow glass plate. An inner structure frame and an outer structure frame are made from a novel heat-isolating material with a coefficient of thermal expansion similar to that of the glass. The internally suspended film structure frame is structurally connected through a heat-isolating bridge. A butyl rubber tape on the outer surface of the internally suspended film structure frame serves as a first sealing layer. A second sealing layer consists of the external reinforcing separating strip and a silicone structural sealant, the whole structure is always consistent to the thermal deformation of the glass, so that the sealing capability of the whole system is more reliable, and the heat-isolating property, the moisture condensation-preventing property, the sound-isolating property and the like are greatly improved. Dirt is not easily accumulated on the outer surface of a mounted ceiling, so that the ceiling is convenient to clean and maintain. The double-hollow glass ceiling module has a flexible assembling and mounting way, and can be applied to different vertical surfaces of an outer building rail.

The present invention specifically relates to a high-rotating-speed pulling motor. The invention settles a problem that defects and deficiencies exist in the illogical structure of prior motor. The end cap of high-rotating-speed pulling motor is installed with a cylinder jacket protruding frontwards. A rotor shaft is placed I the cylinder jacket. A bearing is sleeved with a bearing inner cap. The front end surface of bearing is pressed with a bearing outer cover. The back side of bearing is installed with a pinion which is composed of a transmission teeth part and a shaft sleeve part. The cylinder jacket is provided with a transmission opening. The top of cylinder jacket is provided with an oil inlet through hole. The lower part of back end plane of bearing outer cover is provided with a groove. The bearing inner cover is provided with an oil hole which is communicated with the groove and the oil inlet through hole. The shaft sleeve part of pinion is fixed with an oil slinger. The back side of oil singer is provided with a back sealing ring. The back sealing ring is fixed with a protective cover and is provided with a plurality of radial annular sealing grooves. The lower part of annular sealing grooves is provided with an oil leakage channel. The base part of cylinder jacket is provided with a main oil return hole and an auxiliary oil return hole. The high-rotating-speed pulling motor of the invention not only realizes the oil lubrication of bearing, but also overcomes the problem of oil leakage. Simultaneously the service lifetime of bearing is guaranteed.

A shield connector (40) includes a housing with a base (45) to be mounted into a metallic mating member. A connector fitting (51) is formed on a top side of the base (45) and a mounting projection (100) is formed on an under side of the base (45). A shield shell (140) is mounted between an inner tube (53) and an outer tube (54) of the connector fitting (51). A nut accommodating portion (110) is formed in the mounting projection (100) of the housing (41) and a nut 160 is mounted in the nut accommodating portion (110) to be freely movable in the longitudinal direction. A connecting portion (145) extends to close an opening of the nut accommodating portion (110) while being bent sideways at a rear end of the shield shell (140) in the longitudinal direction.

The invention discloses a plunger water pump. The plunger water pump provided by the invention comprises two plunger groups which are composed of water cylinders and oil cylinders, a water cylinder piston and an oil cylinder piston of each plunger group are synchronously displaced, a water gap of each water cylinder barrel is provided with a water inlet one-way valve which is in one-way conduction with a cylinder tube cavity from the outside and a water outlet one-way valve which is in one-way conduction with the cylinder tube cavity from the cylinder tube cavity to the outside; and two oil cylinders are alternately stretched under the control of a control valve. The plunger water pump provided by the invention breaks through a traditional water pump structural principle, two oil cylinders are adopted to alternately move and retreat, thereby driving two water cylinders pistons to alternately move, and further the switch of two working conditions is respectively realized; compared with the prior art, the plunger water pump is capable of effectively improving the output flow and the water utilization pressure on the basis of the continuous no-interval foundation; and the invention also provides a liquid control system of the plunger water pump.

A light emitting apparatus includes: a package substrate; a light emitting device housed in a recess of the package substrate; a window member provided to cover an opening of the recess; and a sealing structure that seals a space between the package substrate and the window member. The window member includes a glass plate having an inner surface that faces the optical semiconductor device and a frame body provided on the inner surface of the glass plate. The sealing structure includes a first metal layer provided on a top surface of the package substrate, a second metal layer provided on a bottom surface and an inner circumferential surface of the frame body, and a metal bonding part provided between the first and second metal layers, at least a portion of the metal bonding part being provided on the inner circumferential surface.

The invention relates to a double-drum filter valve, wherein an included angle Alpha which is matched with the rotation angle of an upper plunger valve is formed between the central axis of the seal end of a valve seat a and the central axis of the seal end of a valve seat b in an upper valve cavity; an included angle Beta which is matched with the rotation angle of a lower plunger valve is formed between the central axis of the valve port seal end of a valve seat c and the central axis of the valve port seal port of a valve seat d in a lower valve cavity; and the included angle Alpha and theincluded angle Beta are both 90 DEG. Due to the setting of the included angles, the clamping force between the valve and the valve seats is increased, and the sealing performance is improved; in addition, a seal ring is arranged on the seal end of each valve seat, two axial ends of the upper plunger valve and the lower plunger valve are respectively provided with a ceramic cup-cover-shaped seal structure which forms plug seal to the seal ends of the valve seats, and a positioning flange on each seal structure is in a shape of a cone which is narrowed along the free end. With the structure design, when the plunger valve and the valve seats are sealed, double seal surface seal of end surface and lateral surface is formed, and the plug seal is more reliable; and when a single filtering drum works, a filtering drum which does not work cannot generate liquid leakage.

Provided in the invention is a drive motor of an underground electric drilling tool. The drive motor comprises a housing in a cylindrical shape, a rotor shaft, a rotor, a stator, and a piston. The rotor shaft having a central hole penetrates the inside of the housing along the axial direction; an enclosed cavity for filling oil fluid is formed between the rotor shaft and the housing; and the rotor shaft extends out of the cavity and is connected with a load. The rotor is arranged in the cavity and is fixed on the rotor shaft. The stator arranged in the cavity is sleeved between the housing and the rotor. The piston in an annular shape can be sleeved between the rotor shaft and the housing in a sealing and sliding mode at an axial direction; and the piston located at the bottom of the cavity can slide to balance pressures inside and outside the cavity. The provided drive motor has a high efficiency and can adapt to an underground high-temperature high-pressure complex external environment.

The invention discloses a metal vacuum composite insulation plate with a getter. The metal vacuum composite insulation plate comprises a shell, a core material, a core plate and a vacuum cavity, and is characterized in that the shell is a metal plate or a metal composite plate, wherein the core material is positioned in the vacuum cavity for providing additional strength to the shell and guaranteeing the flatness of the shell under atmospheric pressure; the vacuum cavity is a closed cavity formed by performing the welding edge sealing under normal pressure and the high-temperature opening sealing under vacuum for the shell; the opening sealing is a step that an extraction opening prefabricated in the shell is automatically sealed in a vacuum furnace by using a low-temperature solder according to a liquid sealing principle; and the getter is arranged in the vacuum cavity. A preparation method of the metal vacuum composite insulation plate is simple in process; and the prepared metal vacuum composite insulation plate with the getter can overcome the defects of a traditional insulation plate and a traditional vacuum insulation plate, and can be improved in strength, and heat insulation, sound insulation, fire prevention and decoration functions.

The invention discloses a metal vacuum insulation plate with a getter. The metal vacuum insulation plate comprises a shell, a core material and a vacuum cavity, and is characterized in that the shell is a metal plate or a metal composite plate, wherein the core material is positioned in the vacuum cavity for providing additional strength to the shell and guaranteeing the flatness of the shell under atmospheric pressure; the vacuum cavity is a closed cavity formed by performing the welding edge sealing under normal pressure and the high-temperature opening sealing under vacuum for the shell; the opening sealing is a step that a prefabricated extraction opening in the shell is automatically sealed in a vacuum furnace by using a low-temperature solder according to a liquid sealing principle; and the getter is arranged in the vacuum cavity. A preparation method of the metal vacuum insulation plate is simple; and the prepared metal vacuum insulation plate with the getter can overcome the defects of a traditional insulation plate and a traditional vacuum insulation plate, and can improve the strength, and the heat insulation, sound insulation, fire prevention and decoration functions.

The invention discloses an amphibian permanent magnet submersible motor with a protection level IP68. The amphibian permanent magnet submersible motor comprises a machine seat, a shaft extension end cap, a shaft extension end bearing outer cover, a shaft extension end bearing inner cover, a stator, a rotor, a shaft run-through sealing device, a cable sealing device, a water leakage alarm device and an outgoing cable, wherein the shaft run-through sealing device comprises two annular sealing cavities coaxial with a rotor shaft, and the two annular sealing cavities are formed by encircling firstsealing sleeves, second sealing sleeves, sealing covers and shaft sleeves; the shaft sleeves are made of a wear-resistant material and are thermally sleeved on the rotor shaft; the shaft sleeves andthe rotor shaft are fixed by fastening screws; framework oil seals are arranged in the two annular sealing cavities; and the annular seal cavities are filled with lubricating grease during working. The sealing structure of the motor is reliable, so as to prevent dust and water at a certain pressure from entering the motor; and the motor can meet the sealing requirements of IP68 more easily duringassembling.

The invention discloses a cam shaft oil pressure seal end cover which can prevent separating of a lip-shaped maze sealing ring and can seal a cam shaft end with high reliability. The cam shaft oil pressure seal end cover comprises an end cover body (7) and a framework lip-shaped maze sealing ring (5) hooping a cam shaft to prevent engine oil leakage. The end cover body (7) is assembled at the power input end of the cam shaft and fixed connected to the end face of an oil storage cavity opening of a pump box (1). A roller and outer ring assembly (3) passing through the cam shaft is arranged in a step hole in the inner side of the end cover body (7), and a main lip opening and an auxiliary lip opening of the lip-shaped maze sealing ring (5) hoop the neck of the cam shaft (4) to form a sealing strap which is also arranged in the step hole in the inner side of the end cover body (7). A reverse conical anti-separating structure preventing the sealing ring from separating in the axial direction is arranged on an installing seat hole, provided with the lip-shaped maze sealing ring (5), of the end cover body (7), and the reverse conical anti-separating structure is an inverse-conical-angle conical hole with the big end inside. The cam shaft oil pressure seal end cover effectively eliminates the failure, occurring frequently at the prototype sample stage, of separating of the framework lip-shaped maze sealing ring, and a sealing structure is reliable.

The invention discloses a stepped sealing structure of an optical cable connector box. The stepped sealing structure is characterized in that the stepped sealing structure comprises an upper box bodyand a lower box body, the optical cable connector box is provided with an optical cable embedding hole used for allowing an optical cable to penetrate through, the optical cable embedding hole is provided with a retaining ring, an elastic sealing ring and an extrusion member arranged in sequence from the inside to the outside, the retaining ring, the elastic sealing ring and the extrusion member each comprise a penetrating hole used for allowing the optical cable to penetrate through, the retaining ring is fixed in the inner end of the optical cable embedding hole, an end portion of the elastic sealing ring is abutted against the retaining ring, and the retaining ring is formed by a hard inner core and an elastic sealing peripheral member arranged at the periphery of the hard inner core. According to the stepped sealing structure, an area of the optical cable embedding hole of the optical cable connector box adopts stepped sealing, the sealing of the optical cable embedding hole is realized through the elastic sealing ring, the sealing between the upper box body and the lower box body is realized through the elastic sealing peripheral member of the retaining ring, and the sealing structure is more reliable.

The invention discloses a constant-temperature compartment of a refrigerator. The constant-temperature compartment comprises a compartment body, wherein a storage space with an opening in one side is defined in the compartment body; the constant-temperature compartment further comprises a drawer; the drawer is connected with the compartment body through sliding rail mechanisms, and can move between a first position where an opening of the compartment body is closed and a second position where the opening of the compartment body is opened; first magnets are arranged on one side of the back part of the compartment body; second magnets are arranged on one side of the back part of the drawer; and the polarity of the first magnets is opposite to that of the second magnets, so that acting force that drives the drawer to move from the second position to the first position is supplied to the drawer. According to the constant-temperature compartment of the refrigerator, due to the attracting force of the first and second magnets, a sealing structure between the drawer and the compartment body is more reliable, so that the phenomenon that the efficiency of the refrigerator is reduced because cold air escapes from a fit clearance between the drawer and the compartment body is prevented.

The invention discloses a fire extinguishing system, comprising a fire extinguishing medium pot and a plunger pump for pumping the fire extinguishing medium. The plunger pump comprises two plunger groups consisting of a medium cylinder and an oil cylinder; a medium cylinder piston and an oil cylinder piston of each plunger group conduct synchronous displacement; and a flow passage port of a cylinder barrel of each medium cylinder is communicatively provided with an unidirectional conductive inflow non return valve from outside to a cavity of the cylinder barrel and an unidirectional conductive outflow non return valve from the cavity of the cylinder barrel to an external outlet; the inflow non return valve communicates with the fire extinguishing medium pot; the two oil cylinders are configured in a way of alternative telescoping by controlling of a control valve. The plunger pump of the present invention employs two oil cylinders for alternative advancing and recession to drive alternative movements of the two medium cylinder pistons, so as to realize switching between two working states respectively. Compared with a prior art, the fire extinguishing system of the invention can effectively increase an output flow and water usage pressure on the premise of continuous non-intermittent water supply. Based on the fire extinguishing system, the invention also provides a fire engine containing the fire extinguishing system.

The invention provides a static sealing structure and a pressure vessel with the static sealing structure. The pressure vessel comprises a vessel shell, a vessel cavity formed by a cavity inside the vessel shell and a groove structure opened at the top of the vessel shell and in communication with the vessel cavity; and the diameter of the groove structure in the horizontal direction is larger than that of the vessel cavity in the horizontal direction. The static sealing structure is assembled in the groove structure and comprises a sealing end and a sealing assembly, the sealing end comprisesa head and a sealing shaft rod connected with the head, the sealing assembly comprises a sealing ring and a sealing check ring which sleeve the sealing shaft rod part in an up-and-down contact manner, so that functional partitioning is achieved, and if a workpiece in a functional area goes wrong, a new workpiece can be used for replacement; the whole pressure vessel does not need to be scrapped,and the use cost is reduced.

The invention relates to an air flue assembly and a fresh air unit. The air flue assembly comprises an air flue, a sealing element (7) arranged in the air flue and made of a flexible material, and a sealing state adjustment part for actively adjusting a state of the sealing element (7) so as to enable the air flue to close when the sealing element (7) is in contact seal with a side wall of the airflue and enable the air flue to open when the sealing element (7) is not in seal with the side wall of the air flue. According to the air flue assembly and the fresh air unit provided by the invention, the flexible sealing element is adopted and can tightly fit to a sealing surface under the control of the sealing state adjustment part, and the flexible sealing element can eliminate a contact gapthrough self-deformation, so that a contact pre-tightening force is increased, and a sealing effect is optimized. In addition, a sealing structure is more reliable compared with an air valve structure, and cannot be invalided easily after long-time use. In addition, the air flue assembly can further adapt to various conditions such as planes and irregular surfaces, is higher in adaptability, andcan be beneficial to reducing the requirement on the processing precision on the side wall of the air flue.