16results about How to "Satisfy tightness" patented technology

The invention relates to a temperature sensor for a ship engine, and the temperature sensor comprises a metal protection outer tube, a thermal resistor element, a high-temperature-resistant wire and a high-temperature signal cable, the metal protection outer tube is formed by sequentially connecting a first metal tube, a variable cross-section sleeve and a second metal tube, and the end part of the second metal tube is welded with a sealing connection end; the thermal resistance element is arranged at the end part of the first section of metal tube; the high-temperature-resistant wire extends to the sealing connecting end from the first section of metal pipe; one end of the high-temperature-resistant wire is welded with the thermal resistor element, the other end is welded with one end of the high-temperature signal cable, and the welding point is located in the sealing connection end; the interior of the temperature measuring end is filled with an inorganic insulating material. High-temperature inorganic glue is filled in gaps among the leads of the thermal resistor element and gaps among the high-temperature-resistant wires; and the sealing connecting end is filled with high-temperature insulating sealant. The sensor can bear vibration, impact, bumping, inclined swinging and the like with a certain margin, and has good mechanical performance.

The utility model belongs to the technical field of luggage bag opening sealing, and provides a luggage bag opening sealing device which comprises a luggage main body, a sealing mechanism is arranged on the inner side of the luggage main body, the sealing mechanism comprises a vacuum compression bag arranged on the inner side of the luggage main body, and a sealing strip capable of being closed is arranged at the outer end of the vacuum compression bag. One side of the vacuum compression bag is communicated with an air hole connected with an air pump to compress the space of the vacuum compression bag, shoulder straps are arranged on the outer side of the luggage main body, and a zipper convenient to close is also arranged on the inner side of the luggage main body; the design of the luggage is simplified through the sealing mechanism, the balance of portability and sealing performance is realized, the vacuum compression bag is arranged on the inner side of the luggage, and the sealing strip capable of being closed is arranged at the outer end of the vacuum compression bag, so that the luggage is convenient for a user to operate, can meet the requirements of sealing performance, water resistance and dust resistance, and is convenient to use. A user can easily carry the luggage for short-distance travel or daily travel, and the air holes can be connected with an air pump to compress the space of the vacuum compression bag, so that the use capacity of the luggage is improved.

The utility model belongs to the technical field of tunneling equipment, and particularly provides a sealing structure, a telescopic shield and a tunneling machine. The sealing structure comprises a cylindrical supporting piece, an outer shield connecting piece and an inner shield connecting plate, the front end of the supporting piece is connected with the outer shield connecting piece, the rear end of the supporting piece is connected with the inner shield connecting plate through a detachable connecting piece, and a sealing ring mounting groove used for mounting an inner shield sealing ring is formed between the supporting piece and the inner shield connecting plate. An outer shield sealing piece and / or an outer shield connecting piece is arranged on the periphery of the supporting piece and is an outer shield connecting plate, and the outer shield sealing piece is arranged between the outer shield connecting plate and the supporting piece. The telescopic shield comprises the sealing structure. The heading machine comprises the telescopic shield and the sealing structure. When tunneling is conducted in a TBM mode, the supporting piece and the inner shield connecting plate can be separated, the supporting piece moves forwards along with the telescopic outer shield, no relative friction relation exists between the outer shield sealing piece and the telescopic outer shield, and abrasion of the sealing piece cannot be caused.

The invention relates to a carbon black granulation master batch external circulation system and a use method thereof.The system integrates a product storage tank, a cyclone separator, a dust collection fan, a dry-method granulator and a central processing system, and core equipment of the carbon black granulation master batch external circulation system forms closed-loop association through material flow and air flow; the unit serves as a material processing unit; the cyclone separator is used as a grading unit and is connected with a feeding part of the dry-method granulator; the product storage tank is used as an intermediate storage unit and is connected with a feed of the cyclone separator; the dust collection fan serves as an auxiliary unit, is connected with the top of the cyclone separator and is responsible for airflow and dust recovery; the control unit comprises airtight valves and a central processing system, and the airtight valves are mounted at outlets of the cyclone separator and the product tank and are matched with frequency conversion to control the feeding amount. By optimizing the equipment configuration and the technological process, efficient granulation of the carbon black, efficient recovery of the master batch and stable improvement of the product quality are achieved, and the method can be widely applied to the post-treatment process of the carbon black.

The utility model discloses an anti-corrosion wear-resistant pipe fitting, and particularly relates to the technical field of pipe fittings. The anti-corrosion and wear-resistant pipe fitting comprises a first anti-corrosion and wear-resistant pipe body and a second anti-corrosion and wear-resistant pipe body which are perpendicular to each other, and is characterized in that an inner pipe body is connected in the first anti-corrosion and wear-resistant pipe body in a sliding manner, and the second anti-corrosion and wear-resistant pipe body is fixedly communicated with the inner pipe body in a penetrating manner; the first anti-corrosion wear-resistant pipe body is provided with a telescopic groove for the second anti-corrosion wear-resistant pipe body to penetrate out, and the width of the telescopic groove is matched with the outer diameter of the second anti-corrosion wear-resistant pipe body. According to the utility model, under the condition that the telescopic groove provides an avoiding interval for the movement of the second anti-corrosion wear-resistant pipe body, the pair of sealing assemblies endow the sealing property for the linear movement between the inner pipe body and the first anti-corrosion wear-resistant pipe body, so that the pipe connecting position of the second anti-corrosion wear-resistant pipe body can be adjusted by adjusting the position of the inner pipe body; therefore, the device can adapt to accurate butt-joint installation of pipes with various distances at the corners.

The utility model relates to a kind of exhaust device for acetylene production, including tank, liquid seal device, solid-liquid separation device, vibrating device, transmission shaft, liquid discharge device, motor, mounting bracket, the side of tank is symmetrically provided with two gas ports and one end of one of gas ports is equipped with liquid seal device, solid-liquid separation device is installed at the lower end of tank, vibrating device is arranged in tank, the liquid seal device of the utility model can seal gas in tank and detect gas pressure in tank and can send signal to external controller and issue alarm when reaching set value, meet the high requirement of acetylene production for sealing property and safety, the solid-liquid separation device of the utility model can carry out solid-liquid separation to waste material after production, the utility model carries out exhaust treatment under enough sealing, safety condition, and the separation of waste residue and production raw material is designed.

The utility model discloses a movable garden spraying device, and particularly relates to the field of spraying devices, the movable garden spraying device comprises a plate trailer, a lower storage tank is fixedly connected to the plate trailer, a plug is detachably connected to the bottom of the lower storage tank, an upper storage tank is rotatably connected to the top of the lower storage tank through a damping hinge, and a material opening is formed in the top of the upper storage tank; locksets are arranged on the lower storage tank and the upper storage tank, a sealing ring is fixedly embedded in the top of the lower storage tank, combined stirring pieces are arranged on the lower storage tank and the upper storage tank and located on the inner side of the lower storage tank, a stirring motor for driving the combined stirring pieces to rotate is arranged on the top of the upper storage tank, a supporting rod is fixedly connected to the plate trailer, and a spraying frame is arranged on the supporting rod; and a fixing structure for disassembling and assembling the spraying frame is arranged on the supporting rod. The spraying device solves the technical problems that a liquid storage tank of an existing spraying device is of an integrated structure, and inconvenience is brought to subsequent cleaning due to the fact that the liquid storage structure is not easy to disassemble and assemble.

The five-eccentric ultralow-temperature two-way pressure butterfly valve comprises a valve body, a valve shaft and a butterfly plate, a valve seat, a corrugated pipe and a limiting ring are arranged in the valve body, the two ends of the corrugated pipe are fixed to the valve seat and the limiting ring respectively, the valve seat is located in a movable groove formed by the limiting ring and the valve body, and the axial size of the valve seat is smaller than the size of the movable groove; the butterfly plate is sleeved with a sealing ring, the inner diameter of the sealing ring is smaller than the outer diameter of the position, used for installing the sealing ring, of the butterfly plate, and the outer edge of the sealing ring is arranged in a special-shaped ball arc face and abuts against the sealing face of the valve seat to seal the valve. According to the five-eccentric ultralow-temperature two-way pressure butterfly valve, the sealing ratio between the sealing ring and the valve seat is uniform by arranging the radial self-adaptive floating sealing ring structure, dynamic change is formed by combining two-way pressure, the valve seat moving relative to the valve body is arranged, the self-sealing force of the valve seat is enhanced by means of the pressure of a two-way medium, and the sealing effect is improved; and the bidirectional isobaric sealing performance of the five-eccentric all-metal hard sealing butterfly valve under ultralow-temperature working conditions such as LNG (liquefied natural gas) is met.

The utility model relates to the technical field of batteries, and discloses a battery cover plate and a battery. The battery comprises a battery cover plate, the battery cover plate comprises a cover plate body, a sealing nail and a sealing piece, the cover plate body is provided with a containing hole and a liquid injection hole, the containing hole is communicated with the liquid injection hole, the containing hole and the liquid injection hole jointly penetrate through the cover plate body, the sealing nail is embedded in the liquid injection hole, and the containing hole is filled with structural adhesive; and the sealing piece is plugged at the hole opening of the accommodating hole and is fixed in the accommodating hole through the structural adhesive. According to the battery cover plate, the liquid injection hole is sealed through the structure, so that a welding process is omitted, the mounting difficulty is reduced, the problem of thermal damage caused by laser welding energy is avoided, and the equipment cost and the product loss are reduced while the sealing performance is met.

The utility model discloses a splicing support sealing structure and a battery pack, the splicing support sealing structure comprises more than two splicing support main bodies, each splicing support main body comprises a top surface, a bottom surface opposite to the top surface and a side edge vertical to the top surface and the bottom surface, the top surface is set as a horizontal plane, and the side edge of each splicing support main body comprises at least one splicing edge; the two splicing edges which abut against each other form a splicing gap, and the position of the splicing gap on the top face and the position of the splicing gap on the bottom face are arranged in a staggered mode in the horizontal direction of the horizontal plane. The sealing platforms are arranged between the splicing edges of the splicing support body and the adjacent splicing edges, longitudinal gaps below the sealing platforms can be shielded through the sealing layers, the sealing performance between the splicing edges is improved, and therefore the risk of glue leakage is avoided.

This invention relates to the field of rubber hose technology, and discloses a highly flexible and pressure-resistant rubber hose and its preparation method. The preparation method is as follows: An inner layer compound rubber is fed into an extruder and extruded at 70-90°C to form a tubular inner rubber layer. Then, on the surface of the tubular inner rubber layer, polyester tempered brown filaments are braided into a tubular skeleton using a braiding machine, controlling the braiding density to be 80%-95% and the braiding angle to be 45°-60°. Finally, an outer layer compound rubber is fed into an extruder and extruded at 70-90°C to coat the outside of the skeleton layer, forming an integrated composite hose blank. The blank is then fed into a vulcanizing device, controlling the vulcanizing pressure at 0.8-1.2 MPa, the temperature at 150-170°C, and the holding vulcanization for 25-50 minutes. After vulcanization, it is cooled to obtain a highly flexible and pressure-resistant rubber hose. The highly flexible and pressure-resistant rubber hose prepared by this invention has excellent pressure resistance, flexibility, and aging resistance.

The present invention discloses a fireproof, waterproof and pressure-adjustable leather strip integral sealing structure, comprising a glass window and an outer frame, the glass window comprising a hollow glass and an inner frame containing the hollow glass for installation, a sealing strip is fixedly installed at the contact position of the outer edge of the inner frame, the outer frame comprises a mounting frame distributed on both sides and a connecting frame distributed on the upper and lower sides, the inner frame comprises two side panels distributed on both sides and two horizontal panels distributed on the upper and lower sides, an installation space for installing a sealing strip is provided on the horizontal panel located at the bottom, the sealing strip is a transverse sinusoidal waveform, can be inflated and adjusted according to personal needs to meet the window sealing performance, realize full sealing or semi-sealing adjustment, adopt a sealing strip of a specific shape and an expansion sealing leather strip with uneven sealing distribution to realize the sealing of the glass window, and can flexibly adjust the sealing degree of the window.

The invention relates to the technical field of isolated-phase bus manufacturing, in particular to a novel isolated-phase bus supporting structure which comprises porcelain bottle bases which are fixed to an enclosed bus shell and are arranged in an up-down opposite mode, and each porcelain bottle base is provided with a hollow inner cavity and communicates with an inner cavity of the enclosed bus shell. An annular outer edge is formed at one end, far away from the enclosed bus shell, of the porcelain bottle base, a circular flange is connected to the annular outer edge through a bolt and a nut, a through hole is formed in the center of the circular flange, and an insulator located in an inner cavity of the enclosed bus shell is vertically connected in the through hole through a center bolt and a spring washer. The other end of the insulator is connected with a fitting used for supporting the enclosed bus conductor through a bolt. According to the invention, the use amount of the insulators is reduced, the cost is reduced, the contact area between the insulators and the bus conductor is increased, the stability is ensured, and the IP65 protection grade requirement of the enclosed bus is met.

The present invention provides a spirally lifting and enveloping adaptive tree brushing machine in the field of tree brushing machine technology, comprising a roller brush frame, a roller brush barrel, a driving system and a water pump, wherein a plurality of roller brush frames are connected head to tail to form a ring structure and are sleeved on a tree trunk, and a plurality of openings are provided on the roller brush frame; a plurality of overflow ports for overflowing brush materials are provided on the roller brush barrel, and bending pipes are respectively connected at both ends of the roller brush barrel, and the other ends of the bending pipes at both ends are connected to a rear axle, and the rear axle is arranged through the openings; the driving system comprises a reduction motor, a gear box and a roller, a roller is connected at one end of the gear box, and the other end of the gear box is connected to the reduction motor for driving; a delivery pipe is connected to the water pump, and the delivery pipe is arranged around the roller brush frame, and the other end of the rear axle is connected to the delivery pipe; the roller brush barrel and the driving system are respectively provided with a plurality of openings corresponding to the plurality of openings, and the plurality of roller brush barrels are arranged at intervals from the plurality of driving systems, and the roller and the roller brush barrel are arranged corresponding to the tree trunk. The present invention expands the range of trees that can be whitewashed, and is easy to operate.

The utility model provides a cement sample reserving barrel. The cement sample reserving barrel comprises a barrel body, a barrel cover and a sample separating frame, the barrel body is filled with a buffer layer, the buffer layer forms a plurality of uniformly distributed vertical placement grooves in the barrel body and is used for accommodating the sampling liner, and a sealing cover is detachably mounted at an opening of the sampling liner; the sample separation frame is formed by arranging a plurality of separation guide plates in an annular array with the axis of the barrel body as the center, the two side walls of each separation guide plate are guide slopes, the separation guide plates are arranged above the interval areas between the adjacent containing grooves, and a cone with the tip facing upwards is arranged in the center of the sample separation frame; a feeding hopper is erected above the cone through a bracket; the sample separation frame is erected at an opening of the barrel body and can be detachably fixed on the lower side of the barrel cover, and the barrel cover can be detachably and fixedly connected with the barrel body; when the barrel cover and the barrel body are buckled, a closed containing cavity is formed, and the sample separating frame can be contained in the containing cavity.

The invention relates to the technical field of rubber hoses, and discloses a high-flexibility pressure-resistant rubber hose and a preparation method thereof.The preparation method comprises the following steps that inner-layer rubber compound is put into an extruder and subjected to extrusion molding at the temperature of 70-90 DEG C to form a tubular inner rubber layer, polyester tempered palm fibers are made into a tubular framework on the surface of the tubular inner rubber layer through a braiding machine, and the tubular framework is subjected to extrusion molding at the temperature of 70-90 DEG C; the weaving density is controlled to be 80%-95%, the weaving angle is 45-60 degrees, finally, the outer-layer rubber compound is put into an extruder and extruded at the temperature of 70-90 DEG C to coat the outer side of the framework layer, and a composite hose blank is integrally obtained; feeding the tube blank into vulcanization equipment, controlling the vulcanization pressure to be 0.8-1.2 MPa and the temperature to be 150-170 DEG C, preserving heat and vulcanizing for 25-50 minutes, and cooling after the vulcanization is finished, so as to obtain the high-flexibility pressure-resistant rubber hose. The high-flexibility pressure-resistant rubber hose prepared by the invention has good pressure resistance, flexibility and aging resistance.