2519results about How to "Achieving tightness" patented technology

One kind of horizontal direction detection sneaks in along with drills the measuring technique and the equipment, uses in the horizontal direction detection sneaks in when the fact to survey underground drilling tool inclining, parameter and so on rotation and temperature, and the measurement result will transmit the ground through the transmitting coil by the radio magnetic wave way. The method use underground drilling tool interior along with drills in the metering equipment the inclination angle, the appearance angle and the temperature sensor surveys the corresponding parameter, after signal processing and transmission unit operation, use wireless launch unit to ground receiver real-time transmission. Its metering equipment has two sections of metals shells and center the compartment insulation shell seal becomes. In an end shell is loaded with the power source; The wireless radiating element installs in the insulator shell; Is loaded with electric circuit of board the signal processing and the transfer element, the inclination angle sensor, the appearance angle sensor and the temperature sensor sets in another end shell. The invention volume small, structure simple, cost inexpensive, the antijamming ability is strong, works reliably under the adverse circumstance, can suit the majority direction detection to sneak in the equipment request.

The invention discloses a floating blind-mating flow connector which comprises a socket and a plug matched with the socket, wherein a first flow guide hole is formed in the plug; a first snap ring, a valve bush, a first spring and a first valve core are arranged in the first flow guide hole; the valve bush is provided with a first bumping shoulder matched with the first snap ring; a first spring is arranged between the valve bush and the first valve core; a third flow guide hole is formed in the socket; a second snap ring groove is formed in the lateral wall at the front end of the third flow guide hole; a second snap ring, a flow guide post, a second ring and a second valve core are arranged in the third flow guide hole; the second snap ring is placed in the second snap ring groove; a third bumping shoulder matched with the second snap ring is arranged a the front part of the flow guide post; a fifth flow guide hole is formed in the third bumping shoulder; the second spring is arranged between the third bumping shoulder and the second valve core. According to the invention, both the socket and the plug can be used singly; the sealing effect is excellent and jamming is avoided when the socket and the plug are used together, so that, the fluid in the socket and the plug is enabled to run off quickly and the service life of the socket and the socket is prolonged.

A piece of double-vacuum layer convex glass with sealing strips and mounting holes through metal welding comprises an upper piece of glass, a lower piece of glass and a middle piece of glass, and is characterized in that the mounting holes are comprised; the upper and the lower piece of glass are convex glass; at least one is respectively arranged at the peripheries of the lower surfaces of the upper glass and the middle glass and of the mounting hole; at least two sealing strips are respectively arranged at the peripheries of the upper surfaces of the lower glass and the middle glass and of the mounting hole; the peripheries of the three pieces of glass are automatically welded together in a vacuum furnace through metal solder; the mounting hole is also automatically sealed through the metal solder. The vacuum glass and the manufacturing method thereof are simple in process. According to the vacuum glass and the toughened vacuum glass prepared, not only are mounting and using convenient, but also the airtightness of the vacuum glass is ensured, and the strength, and heat insulation and acoustic insulation performance are also increased.

A piece of vacuum convex glass welded with seal grooves and mounting holes includes a piece of upper glass and a piece of lower glass, and is characterized in that the mounting holes and extraction openings are integrated; the upper glass and the lower glass are convex glass; seal strips are arranged on the peripheries of the upper glass and the extraction openings; the seal grooves are formed in the peripheries of the lower glass and the extraction openings; the peripheries of the upper glass and the lower glass are welded in an ordinary pressure lower edge sealing furnace through low temperature glass solder; the extraction openings are automatically sealed in a vacuum furnace through metal solder; a sealed vacuum layer is formed between the upper glass and the lower glass. The vacuum glass and the manufacture method, provided by the invention, have the advantages that the technology is simple, the manufactured vacuum glass and the toughened vacuum glass facilitate mounting and use, the airtightness of the vacuum glass is guaranteed, and intensity as well as heat and sound insulation performance of the glass can be improved.

The invention provides plane double-vacuum-layer glass provided with sealing strips and grooves and mounting holes through metal welding. The plane vacuum glass comprises upper glass, lower glass and middle glass, and is characterized in that the plane double-vacuum-layer glass is provided with mounting holes; sealing strips are arranged at the peripheries of lower surfaces of the upper glass and the middle glass, and the mounting holes; sealing strips and sealing grooves are formed in the peripheries of the upper surfaces of the middle glass and the lower glass, and the mounting holes; the peripheries of three blocks of glass are automatically welded together through metal welding material in a vacuum furnace; the mounting holes are sealed automatically by adopting metal welding material; two closed vacuum layers are formed among three blocks of glass; supporting materials arranged in a dot matrix manner are arranged in the vacuum layers. The manufacturing method and technology of the vacuum glass provided by the invention are simple, the vacuum glass and tempered vacuum glass manufactured through the manufacturing method and technology has the advantages that the mounting and use are convenient, the air tightness of the vacuum glass can be guaranteed, and the strength, heat insulation performance and sound insulation performance of the vacuum glass are increased.

The invention belongs to the model facility of hydraulics experiment, and specifically relates to a device for stable, high-speed and variable-angle water entry experiment of rotating body, comprising a transparent water tank, a data acquisition system which the connection is controlled by the industrial personal computer as well as a release device of water entry objects arranged above the transparent water tank, the release device of water entry objects comprises an entry angle protractor and a gas guide rod under flexible connection with a horizontal bracing piece, the bottom sleeve connection of the gas guide rod is arranged with the rotary gear and rotating head motor under coordination with the rotary gear, the motor operation drivers the rotation of the water entry objects. The gas guide rod is under sealed connection with a gas supply device via the high-pressure windpipe, the gas supply device comprises a high-pressure gas cylinder with the electro-magnetic switch valve and a air compressor connecting to the high-pressure gas cylinder, negative or positive pressure is formed in the high-pressure gas cylinder by controlling the operation of the air compressor, so as to control absorption and high-speed release of the water entry objects. The device for stable, high-speed and variable-angle water entry experiment of rotating body can stably release different forms of water entry objects under high-speed rotation at high speed, and can accurately control the object entry angle.

A compact cosmetic box with airtight sealed structure has simple structure and enhanced airtight sealed effect to prevent leakage of powdery cosmetics, thus improving the quality, improving the production efficiency and lowering the production cost. The compact cosmetic box comprises a main body (100), an inner housing for accommodating the powder (110), an inner cover hinged on the inner housing (110) and provided with a powder puff base (140), and an outer cover hinged on the main body (100) with a locking portion (150). A groove (180) is formed surrounding the upper surface of the inner housing (110), and the groove is filled with liquid rubber to form a rubber seal (190). A locking hole is formed on the inner housing (110), and a locking rod (138) with locking bump (136) is formed on the inner cover (130) to be locked on the locking hole (116).

The invention provides plane vacuum glass provided with sealing grooves and mounting holes through metal welding. The plane vacuum glass comprises upper glass and lower glass, and is characterized in that the plane vacuum glass is provided with mounting holes; wherein the upper glass and the lower glass are plane glass; sealing strips are arranged at the peripheries of the upper glass and the mounting holes; sealing grooves are formed in the peripheries of the lower glass and the mounting holes; the peripheries of the upper glass and the lower glass are automatically welded together through metal welding material in a vacuum furnace; an extract opening is automatically sealed in the vacuum furnace by adopting metal welding material; a closed vacuum layer is formed between the upper glass and the lower glass; supporting materials arranged in a dot matrix manner are arranged in the vacuum layer. The manufacturing method and technology of the vacuum glass provided by the invention are simple, the vacuum glass and tempered vacuum glass manufactured through the manufacturing method and technology has the advantages that the mounting and use are convenient, the air tightness of the vacuum glass can be guaranteed, and the strength, heat insulation performance and sound insulation performance of the vacuum glass are increased.

A vacuum plane glass provided with sealing strips and a mounting hole through metal welding comprises an upper glass and a lower glass, and is characterized by further comprising the mounting hole, wherein both the upper and the lower glass are plane glasses; at least one sealing strip is respectively arranged at the peripheries of the mounting hole and the upper glass; at least two sealing strips are respectively arranged at the peripheries of the lower glass and the mounting hole; the sealing strips on the upper glass insert among the sealing strips on the lower glass; the peripheries of the lower and the upper glasses are automatically welded together in a vacuum furnace through metal solder; the mounting hole is also automatically sealed through the metal solder. The vacuum glass and the manufacturing method thereof are simple in process. According to the vacuum glass and the toughened vacuum glass prepared, not only are mounting and using convenient, but also the airtightness of the vacuum glass is ensured, and the strength, and heat insulation and acoustic insulation performance are also increased.

The disclosure relates to a hygiene product, in particular a menstrual cup, having a cup body comprising a cup wall defining a receiving space using an inner surface, the cup body comprising on a first end an opening into the receiving space, the opening having an edge, and at a second end, a bottom opposite the opening, and the cup body comprising a generally conical shape, tapering towards the bottom and terminating in a tip. The hygiene product is characterized in that the cup body is rotationally asymmetric and a central axis of the cup body runs curved.

The invention discloses plasma enhanced chemical vapor deposition vacuum equipment, which has continuous structures with the same shape and constitution. Each structure consists of a left flange, a main vacuum chamber, a separator, a high vacuum seal valve device, an auxiliary vacuum chamber, a right flange and a large seal plate from left to right in turn; the left flange is connected with the main vacuum chamber through argon arc welding; the main vacuum chamber is connected with the separator through argon arc welding; the separator is connected with the auxiliary vacuum chamber through argon arc welding; a fluorine rubber gasket is sealed between the separator and the high vacuum seal valve device; the auxiliary vacuum chamber is connected with the right flange through argon arc welding; a fluorine rubber gasket is sealed between the high vacuum seal valve device and the right flange; the right flange and the large seal plate are connected in a sealing way through a fluorine rubber gasket; and multiple vacuum chambers are connected by repeating the sequence, so that the pollution-free multi-layer film preparation is carried out. The plasma enhanced chemical vapor deposition vacuum equipment has a wide application prospect in the technical field of vacuum coating equipment real-time monitoring.

The invention discloses a leakproof sealing device for cable connection, which comprises a cable line and a terminal box cover. The invention is characterized in that the cable line has three synchronous sealing in different positions that are the sealing between a rubber insulation layer on the external surface of the cable line and a contacting piece, the clearance sealing between an inner core wire of the rubber insulation layer and a core wire, and the surface sealing of solid copper post head; compared with prior art, the leakproof sealing device for cable connection of the invention has the sealing principle in the three positions that a rubber sealing part which has elastic deformation is squeezed and therefore deformed under the exogenic action so as to enable the rubber sealing part to adhere closely with contacted objects, thus serving the sealing purpose.

The invention discloses an automatic packaging type intelligent dustbin, which comprises a dustbin body, wherein a dustbin cover is arranged at the upper part of the dustbin body; a package bag sleeve corresponding to the dustbin cover is arranged in the dustbin body; a garbage bag is sleeved on the package bag sleeve and corresponds to a package mechanism arranged in the dustbin body; a storage chamber corresponding to the bottom of the box body is arranged at the lower part of the box body; a classification storage device is arranged in the storage chamber; and the package mechanism and the classification storage device are electrically connected with a control system. The automatic packaging type intelligent dustbin can be used for accommodating normal garbage and medical garbage and also can be used for sealing and sorting the medical garbage; by a motor and screw transmission structure and a simple connecting rod mechanism, the structure is simple; the package principle is simple; the package mechanism is simple; and the dustbin is easy to realize.

The invention discloses a production technology for polycrystalline silicon. The production technology includes the following steps: 1, a first coating, a second coating and a third coating are sequentially arranged on the surface of a crucible from inside to outside, and a crystalline silicone leftover material layer is laid; 2, a small quantity of raw polycrystalline silicon materials in the melted state is contained in the crucible, and the temperature of the crucible is controlled to be lower than the melting point of the crystalline silicone leftover material layer to enable the small quantity of melted raw polycrystalline silicon materials to form a crystallization protection layer; 3, in the vacuum environment, to-be-processed raw polycrystalline silicon materials are contained in the crucible, placed in a melting furnace with an electron beam generating device and processed through laser irradiation; 4, high-frequency induction heating is carried out in the vacuum environment, a slag forming constituent is added, plasma heating is carried out, steam-and-hydrogen-mixed argon is introduced, and directional solidification is carried out to obtain the polycrystalline silicon serving as the target product. By means of the production technology, the boron content, the phosphorous content and the metal impurity content can be effectively reduced, the complete polycrystalline silicon is prepared, long crystal dislocation is less, grain boundaries are proper, and the conversion rate of a polycrystalline silicon battery is increased.

The invention discloses a tubular product hydraulic forming device capable of achieving inside and outside pressurization and relates to a tubular product part forming device. The device solves the difficult problems that a traditional inner high-pressure forming die can achieve tubular product axial feeding but can not achieve tubular product outside pressure sealing, and a whole sealing container can be used for achieving the outside pressure sealing but not achieving the axial feeding. The tubular product hydraulic forming device comprises an upper die of a die, a lower die of the die, an upper template, a lower template, a left side punch and a right side punch, wherein a ring-shaped groove surrounding a cavity of the die is formed in the upper die, a ring-shaped protrusion is formed in the lower die, the groove is in clearance fit with the protrusion, a ring-shaped elastic sealing ring between the groove and the protrusion and a sealing ring among the left side punch, the right side punch and a boss of the lower die jointly ensure the tubular product outside pressure sealing, a die splitting mode that the groove is in clearance fit with the boss is adopted to ensure that no leakage of the tubular product outside pressure happens, under the joint effects of the inside pressure, the outside pressure and the axial feeding, plastic deformation occurs in the tubular product, and formability of the low-plastic tubular product is improved.

The invention discloses an engine oil consumption measuring device and an automobile oil consumption management system using the engine oil consumption measuring device. The engine oil consumption measuring device comprises a flow meter, a one-way valve and an oil storage box, wherein the flow meter and the one-way valve are arranged on an oil supply pipe of an engine, the oil storage box is used for collecting fuel returning from an oil return pipe of the engine and conveying the fuel to the oil supply pipe of the engine, the upper portion of the oil storage box is provided with an oil inlet connected with the oil return pipe, the bottom of the oil storage box is provided with an oil outlet connected with the oil supply pipe, the connecting portion of the oil outlet and the oil supply pipe is located on the downstream of the one-way valve, and a control part used for controlling the opening and closing state of the oil outlet according to the height of the fuel in the oil storage box is arranged in the oil storage box. Due to the fact that the oil storage box is additionally arranged, the problem that measurement precision is influenced due to that the engine return oil is high in temperature and contains bubbles is effectively solved, real-time fuel consumption amount of the engine is precisely measured, and accurate oil consumption measurement is provided for engines of different types.

The invention discloses a low temperature co-fired ceramic-based micro-electromechanical system (MEMS) packaging method. The method comprises the following steps of: preparing an upper low temperature co-fired ceramic substrate and a lower low temperature co-fired ceramic substrate respectively and forming a three-dimensional electrically-interconnected network, an embedded micro-channel and an open cavity in the upper substrate and/or the lower substrate; aligning the upper substrate with the lower substrate for packaging, packaging components and parts in the cavity and communicating the micro-channel with the cavity and the outside of a packaged body; and connecting an external micro-tube to the outlet of the micro-channel, which leads to the outside of the package body, and realizing gas or liquid flow between the cavity and the outside through the external micro-tube. The method has the advantages of improving the integration level, the stability and the flexibility of MEMS packaging, realizing vacuum packaging and heat dissipation of the components and parts in the cavity by conveying a circulating radiating medium through the micro-channel and conveying detection samples and the like to medical, biological or chemical MEMS components and parts in the packaging cavity through the micro-channel.

The invention relates to a transverse and longitudinal ultrasonic sensor for detecting axial pre-stress of a bolt. The ultrasonic sensor which is designed into a concentric ring nested structure and can excite transverse and longitudinal wave signals synchronously or asynchronously is provided to mainly solve the problem that a traditional ultrasonic sensor cannot excite the transverse and longitudinal wave signals synchronously or asynchronously and can be easily limited and affected by operation or test conditions of testing staff so as to cause inconsistency of thickness of a coupling layer and a relatively large measurement error; a magnet steel is arranged inside the sensor, so that the sensor can be conveniently absorbed on any ferromagnetic part to be tested, operations can be simplified, the stability of the thickness of the coupling layer can be guaranteed, and the measurement error can be reduced, therefore, the transverse and longitudinal ultrasonic sensor can be widely applied to the application field of ultrasonic non-destructive detections.