585results about How to "Sealing is not affected" patented technology

The invention discloses a bag making machine. According to the technical scheme, the bag making machine is mainly characterized by comprising a rack, the rack is provided with a feeding device for feeding plastic film rolls and a heat-sealing device, the heat-sealing device comprises heat-sealing knives, the two heat-sealing knives are parallel to each other, and a cutting device for cutting a plastic film is arranged at the position, located at the downstream of the heat-sealing device, of the rack; the bag making machine is provided with the two heat-sealing knives and the cutting device, and the heat-sealing knives only play a role in sealing the plastic film instead of cutting the plastic film, so that after heat-sealing of the plastic film is completed, a pair of parallel heat-sealing strips are formed on the plastic film, then the plastic film is sent into the cutting device, the cut position of the cutting device is located between the two heat-sealing strips, thereby the structures of the heat-sealing strips cannot be damaged, sealing performance of a plastic film bag cannot be influenced, the plastic film is not separated through heat cutting, stringing cannot be generated, and product quality and hand feeling of users in the later-stage using process are improved.

The invention provides a test device and method for simulating natural gas leakage in soil. The test device comprises a compressed gas steel cylinder, a pressure reducing valve, a gas flow meter, a PC computer, a pressure-tolerant hose, a rigid pipe, a gas buffer cylinder, a combustible gas probe, a multichannel combustible gas probe controller, a waterproof shield cable, a rigid hose and the like. The gas buffer cylinder and the combustible gas probe are embedded in outdoor soil. Through the rigid hose, zero calibration can be carried out on the combustible gas probe buried in the ground. The test method comprises the steps that the pressure reducing valve of the compressed gas steel cylinder of natural gas is opened; the gas buffer cylinder is filled with the natural gas successively through the gas flow meter, the pressure-tolerant hose and the rigid pipe; the combustible gas probe buried in the ground is used to collect the concentration of the gas leaking out from the gas buffer cylinder; the diffusion law of the natural gas in soil after natural gas pipe leakage is researched; and a technical support is provided for the prevention and the disposition of a natural gas pipe leakage accident.

The invention discloses a mechanical dry gas sealing device for pumps. The mechanical dry gas sealing device comprises a movable ring component and a fixed ring component, wherein the movable ring component comprises a spring box (1), a stopper screw (2), a spring (3), a sealing ring (4), a pushing ring (5), a snap spring (6) and a movable ring (7), and the fixed ring component comprises a fixed ring (12), an anti-rotating pin (9), a sealing ring (11) and a gland (8). The mechanical dry gas sealing device is characterized in that the sliding sealing ring (4) is mounted in a seam allowance groove (50) on the inner diameter of the front end of the pushing ring (5), the pushing ring (5) is in close fit with the rear end face (70) of the movable ring (7), and compression rate of the O-shaped sliding sealing ring (4) ranges from 2% to 5%. A sealing end face of the movable ring (7) of a compensation ring is a conical surface. A boss (83) is arranged on the inner diameter of a vertical end face (82) mounting a seam allowance groove (80) of the fixed ring (12) and is matched with the inner diameter of the inner end face of the fixed ring (12) in a support manner. An end face of the compensation ring of the mechanical dry gas sealing device is good in adherence. Besides, the mechanical dry gas sealing device is stable to run, high in interference resistance, good in sealing performance and suitable for diversified working conditions.

The invention discloses a nozzle-adjustable steam ejector. The nozzle-adjustable steam ejector comprises an ejector housing with a suction chamber, a mixing chamber and a diffusing chamber inside, and a spray pipe which is partially inserted into the suction chamber, wherein the spray pipe is provided with a nozzle which faces to the mixing chamber. The nozzle-adjustable steam ejector further comprises a retractable pipe which is hermetically connected with the ejector housing and the spray pipe, and an adjusting device which is used for adjusting the distance between the nozzle and the mixing chamber; a guide mechanism is arranged between the spray pipe and the ejector housing. The nozzle-adjustable steam ejector disclosed by the invention has the advantages that of simple structure, low manufacturing cost and simplicity and convenience in installation and disassembling. Not only can the distance between the nozzle and the inlet of the mixing chamber be adjusted, can the performance of the steam ejector be improved and can the ejector be kept to have the optimum working performance within a wider operating range, but also the sealing performance is not influenced during adjustment of the distance between the nozzle and the suction chamber since the spray pipe is hermetically connected with the nozzle with the ejector housing by adopting the retractable pipe, and the problem of leakage caused by a reason that the sealing performance is poor or becomes deteriorated does not exist.

PCT No. PCT/DE95/01386 Sec. 371 Date Apr. 28, 1997 Sec. 102(e) Date Apr. 28, 1997 PCT Filed Oct. 10, 1995 PCT Pub. No. WO96/13414 PCT Pub. Date May 9, 1996A magnet valve with low noise upon shutoff from the pressure limiting function. The magnet valve has a two-part valve tappet, whose inner valve tappet part has the closing member of a seat valve. The closing member is circumferentially engaged in spaced-apart fashion, forming a gap space, by a tubular portion of the outer valve tappet part. From the gap space, a pressure fluid conduit leads to a control chamber, which is located between the face end, remote from the seat valve, of a magnet armature that cooperates with the valve tappet, and a valve dome. Upon shutoff of the magnet valve, the seat valve changes from its closing position to a partly open position, in which dynamic pressure in the gap space becomes operative and is transmitted through the pressure fluid conduit into the control chamber. The hydraulic force that is operative there on the magnet armature acts counter to the opening forces of the magnet valve and slows down its opening motion. Because of the thus-throttled flow of pressure fluid through the seat valve, a pressure surge is averted. The magnet valve can be used in slip-controlled motor vehicle brake systems.

The invention discloses a narrow type lithium-ion battery, comprising positive and negative pole pieces, a diaphragm, electrolyte, positive and negative lugs, insulation bonding films, and a shell; the positive lug and the negative lug passes through a same insulation binding film and extrude into a battery cell; one end of the positive pole piece and one end of the negative pole piece are in a L-shaped, and the projecting parts of the L-shaped ends are blank current carrier. A manufacturing process for manufacturing a narrow type lithium-ion battery comprising the following steps: (1) producing pole pieces; (2) not processing one end of each pole piece into L-shaped; (3) communicating the pole pieces with the diaphragm and winding vertically; (4) welding the lugs on the projecting parts of the L-shaped ends; (5) encapsulating and injecting the electrolyte solution, forming, and then completing the manufacturing of the lithium-ion battery. In the invention, the design of the L-shaped ends of the pole pieces and the integral type lugs is matched with the vertical winding way of the battery cell to ensure that the width of lithium-ion battery can be made smaller, so that the application scope is broader.

The invention relates to a fast pipe joint insertion structure. According to the fast pipe joint insertion structure, the defect of low efficiency caused by the fact that conventional pipe joint connection adopts a threaded manner and can be completed through assistance and matching of other tools. The fast pipe joint insertion structure comprises a joint body, wherein inner holes allowing a pipe to penetrate through are formed in the joint body and comprise a liquid hole, an access hole, an open type seal ring hole and a plug hole; a plug is arranged in the plug hole; the end part of the plug closes the open type seal ring hole to form a seal ring slot hole; a seal ring is arranged in the seal ring slot hole; a buckle for buckling the pipe is arranged in the plug; the outer wall of the buckle and the inner wall of the plug form a retaining structure. The seal ring, the plug and the buckle are sequentially placed in the inner holes, the pipe penetrates through the buckle, the plug and the seal ring from outside and extends to the end of the access hole, the buckle buckles the outer surface of the pipe, the pipe connection adopts an insertion manner, other auxiliary tools are not required, a wrench for threaded screwing is not required, and the efficiency is high; the seal ring is mounted in the open type seal ring hole, the processing is convenient, and the seal ring is convenient to mount.

The invention relates to the field of electric car fittings, in particular to a seal cooling device for a battery of an electric car. The seal cooling device for the battery of the electric car comprises a battery seal box and a heat dissipation box. The sides, close to each other, of the battery seal box and the heat dissipation box communicate through a pipeline, and the bottom of the inner wall of the battery seal box is fixedly connected with a battery supporting plate through a damping device; the top of the battery supporting plate is fixedly connected with a battery box, and the positions, right opposite to the battery box, of the two sides of the inner wall of the battery seal box are provided with damping fixing buckles; a seal cover is arranged at the top of the battery seal box, and one side of the bottom of the inner wall of an outer frame is fixedly connected with a heat dissipation fan; and a through slot matched with the heat dissipation fan is formed in one side of the outer frame, and the bottom end of a cross rod is fixedly connected with a through pipe. The seal effect on the battery is achieved, damping is ensured in the car moving process, the damage to the battery due to moving is reduced, the temperature of the battery is reduced through cooling of cooling liquid so that the battery can be used continuously, and the failure factors are reduced.

The invention discloses a high pressure resistant switching connector, which is characterized in that ceramic insulating tubes are sleeved on the excircles on contact elements of the contactor, and at least one end of the excircles is positioned at the end openings of contact pin channels; the outer ends of the ceramic insulating tubes axially extend along the contact elements to protrude through the end openings of the contact pin channels; glass sealing members are integrally sintered between the inner walls of the channels at the inner end openings of the ceramic tubes in the contact pin channels and the contact elements, between the outer walls of the ceramic insulating tubes and the inner walls of the contact pin channels as well as between the inner walls of the ceramic insulating tubes and the contact elements; and the ceramic insulating tubes, a metal shell and sealing-in pins are solidified into a whole by the integrally sintered glass sealing members. The invention greatly improves the high pressure sealing property of the connector by or above 140MPa, so that the connector can completely bear the hydraulic pressure of the special high-pressure vessels and ensure overall sealing of the high-pressure fluid vessels not to be affected while finishing signal transmission.

The invention discloses a normally closed semiautomatic gas emergency cut-off magnetic valve comprising a magnetic coil assembly, a valve cover assembly, a valve body and an open valve handle assembly, wherein the magnetic coil assembly and the valve cover assembly are mutually blocked and can be disassembled; the valve cover assembly is in threaded connection and fixed with a gas inlet cavity of the valve body, the gas outlet cavity of the valve body is provided with the open valve handle assembly, the open valve handle assembly is fixedly connected with a check ring, the check ring is in threaded connection with a mandrel, a flat seal film is sleeved on a lower lug boss of the check ring, and a spring is sleeved on the excircle of the mandrel; a circuit board and a coil frame are arranged in the magnetic coil assembly, a charging capacitor is arranged on the circuit board, and a coil is coiled on the coil frame; a permanent magnet and a built-in iron core are arranged in the valve cover assembly; when the magnetic valve is energized, the capacitor is charged; when the magnetic valve is deenergized, the capacitor releases electric energy to lead the coil to work in order to generate an electromagnetic field which has opposite polarity with a permanent magnetic field, and the magnetic force of the permanent magnetic field is weakened to lead the spring to push the mandrel and the check ring to move in order to close the valve. The normally closed semiautomatic gas emergency cut-off magnetic valve is easier to replace the magnetic coil for being separating from the permanent magnet, has low power consumption, can be automatically closed and manually opened only when deenergized, can automatically recover when energized, and improves the safety.

The invention discloses a nuclear power plant passive final hot trap cooling system and method. The nuclear power plant passive final hot trap cooling system comprises a material changing water box for providing cooling water, a safe shell, and a cooling water heat exchanging device and a passive cooling device which are successively connected with the material changing water box and the safe shell. The nuclear power plant passive final hot trap cooling system and method provided by the invention have the characteristics that the construction process is simplified, the construction investment is saved, the stability is high, the cooling effect is good and the like, and the system has the characteristic of being completely passive in an initial stage of operation when working in a second generation nuclear power station, does not need extra power, and not only can be cooled under the blackout condition of the whole station, but also can serve as a relieving method of a cold source losing accident.

The invention discloses a grouting material capable of improving the water retention capacity of water glass composite colloid used in a coal mine and a preparation method of the grouting material and belongs to the technical field of fire-fighting materials. The grouting material is formed by uniformly mixing a polymer additive and a raw water glass composite colloidal material, wherein the polymer additive accounts for 0.1-1% of the weight percentage of the raw water glass composite colloidal material; the polymer additive comprises any one of starch, cellulose, anionic polyacrylamide and cationic polyacrylamide. According to the grouting material capable of improving the water retention capacity of water glass complex colloid used in the coal mine and the preparation method of the grouting material, provided by the invention, the water retention capacity is obviously improved if the grouting material is compared with the raw water glass composite colloidal material, and the finally obtained jet-grouted soilcrete does not crack; the sources of raw materials are extensive, the cost is low, the products have no toxic and side effect on human bodies, and cause no pollution to underground wells.

The invention provides a button cell and electronic equipment. The button cell comprises a shell, an electrode assembly and a sealing piece, wherein the shell is internally provided with a containing cavity, the electrode assembly is located in the containing cavity, and the shell is provided with a liquid injection hole used for injecting electrolyte into the containing cavity; a concave part is arranged on the outer surface of the shell, is concave towards the inner side of the accommodating cavity, is positioned at an orifice of the liquid injection hole and is communicated with the liquid injection hole; the sealing piece is welded to the outer side of the shell so as to seal and cover the concave part and the liquid injection hole. The button cell and the electronic equipment provided by the invention are relatively high in safety and reliability.

The invention relates to the field of filter presses, in particular to a filter press capable of automatically clearing filter residues and a use method. The filter press capable of automatically clearing the filter residues comprises beams, an impeller, a keep plate, a thrust plate, separating mechanisms and a rack. The filter press capable of automatically clearing the filter residues and the use method have the advantages that after mixed liquid is filtered and an intercepted material is dehydrated to form filter cake, through screws, the keep plate can slide along installation grooves, then by means of the separating mechanisms, filter frames move along with the keep plate to separate the filter cake, the filter cake automatically falls, and is unloaded, in a separation process of thefilter frames, gears move along surfaces of rack boards, and respectively drive rotating shafts and rotating boards to rotate in the filter frames, by rotating the rotating boards constantly, filter clothes continuously expand and shrink under stress to form vibration, thus the filter cake, residues and the like which are hung on surfaces of the filter clothes in a stuck mode are shaken off, filtering effects of the filter clothes are guaranteed, the situation that workers waste time and energy while shoveling is avoided, and only the filter clothes are subjected to action, and are made to vibrate, and the filter frames and filter boards are not made to vibrate, so that the leakproofness between each filter frame and the corresponding filter board is not affected, and leakage of the mixedliquid is prevented.

An ultrasonic transducer for use in a fluid medium is proposed. The ultrasonic transducer includes at least one transducer core which has at least one acoustic/electric transducer element, in particular a piezoelectric transducer element. The ultrasonic transducer furthermore includes at least one housing, at least one housing opening being at least partially sealed against the fluid medium with the aid of a sealing film which is connected to the transducer core. The sealing film has at least one expansion deformation which is configured to permit a relative movement between the transducer core and the housing.

The invention discloses a connecting mechanism and a foldable container provided with the same. The connecting mechanism is used for connecting a top cover and a base plate of the folded foldable container. The foldable container comprises the top cover and the base plate. Top corner parts are arranged at the four corners of the top cover. A top cover corner stand column is arranged below each top corner part. Bottom corner parts are arranged at the four corners of the base plate. A base plate corner stand column is arranged above each bottom corner part. The connecting mechanism comprises a hook lug and a locking hook plate, wherein the hook lug is arranged on each base plate corner stand column, and the locking hook plate is rotationally arranged on the outer end surface, facing the outer side in the length direction of the foldable container, of each top cover corner stand column and the lower portion of the locking hook plate is provided with a hook portion matched with the hook lug. According to the connecting mechanism, the top cover and the base plate of the folded container can be automatically connected; when the container is assembled, operation efficiency is high, and the internal size of the container is not affected; and the connecting mechanism is particularly suitable for the foldable container which is mechanically folded, assembled and operated.

The invention discloses a stuffing box for a piston rod of a crosshead two-stroke diesel engine. The stuffing box comprises a housing which is formed by two connected semicircular rings with flanges on lower end parts, wherein the flanges are fixed on an air cylinder transverse partition plate through bolts; four ring slots are formed in the inner surface of the housing from top to bottom in the axial direction; gas vent holes and oil return holes extending to the outside of the housing are formed in the ring slots; gas rings are mounted in the upper two ring slots; oil rings are mounted in the lower two ring slots; the gas rings and the oil rings comprise a plurality of sections of ring arcs which are of positive and negative step structures lapped up and down; at least one ring-shaped circular arc slot is formed in the peripheral surfaces of the gas rings and the oil rings; the circular arc slots are tied to the outer circles of the piston rod through springs in the circular arc slots, and are embedded into the ring slots; ring-shaped bumps are arranged on the peripheries of the ring arcs of the gas rings; sealing rings which are embedded into the sealing slots in the bottom of the ring slots are further arranged on the outer peripheral surfaces of the bosses. The stuffing box is simple in structure, and the gas rings and the oil rings are remarkably improved in sealing effect and oil scraping effect.

The invention discloses an integrative vacuum bottle cork, which comprises a cylinder body (1), a pressing handle moving piece (2), a spring (3) and an air valve pump, wherein the pressing handle moving piece (2) and the air valve pump are positioned in the cylinder body (1) together and connected through the spring (3). The vacuum bottle cork has the advantages of simple structure, small volume, convenient use, good sealing effect and the like.

The invention discloses a Rockwell sealing ring comprising a main sealing ring and a secondary sealing ring which are parallel to each other, wherein the main sealing ring is connected with the secondary sealing ring in an embedding mode. A groove is disposed at the outer peripheral surface of the main sealing ring, and an elastic ring is embedded in the groove. A sealing main lip is arranged on the inner peripheral surface of the main sealing ring. The invention also discloses a production method of the Rockwell sealing ring. With the advantages of simple structure and convenient processing, the Rockwell sealing ring can enhance processing efficiency and reduce processing cost.

The invention relates to a glass curtain wall module that can display the information of pictures and words, comprising inner-layer glass (1), outer-layer glass (2) and a frame bar (3) positioned between the inner-layer glass (1) and outer-layer glass (2) and distributed along an edge; a closed interlayer is formed among the inner-layer glass (1), the outer-layer glass (2) and the frame bar (3); the closed interlayer is internally embedded with an electronic displaying layer that comprises at least one LED luminescent pixel component (4), a signal bus component (5) and a power affluxion component (6), wherein, the two ends of the LED luminescent pixel component (4) are respectively connected with the signal bus component (5) and the power affluxion component (6) to in a mechanical link way and an electrical link way. The glass curtain wall module combines a double-layer hollow glass module used for buildings and an LED electro-optical displaying part; each hollow glass used for buildings becomes a transparent LED pixel module that can display pictures, words, moving pictures and television images, thus improving the displaying effect.

The invention discloses a longitudinal circulating mixing type viscous fluid emulsifying and mixing device. The device comprises a base, a mixing kettle and a top cover, wherein a stirring motor is mounted in the middle of the top cover; a rotary stirring shaft is mounted at the bottom end of the stirring motor; a spiral stirring rod is mounted on the rotary stirring shaft; stirring blades are mounted at the bottom end of the rotary stirring shaft; a mounting frame is mounted at the right end of the upper plane of the top cover; an auxiliary liquid box is mounted at the upper layer of the mounting frame; a liquid conveying barrel is mounted at the lower layer of the mounting frame; a liquid inlet pipe is arranged at the right end of the auxiliary liquid box; the bottom end of the auxiliary liquid box is communicated with the liquid conveying barrel through a liquid conveying pipe; a piston is mounted in an inner cavity of the liquid conveying barrel. The spiral stirring rod and the stirring blades are matched to stir materials, the materials are circulated longitudinally, and exchange and mixing of the materials are promoted.

The invention provides a three-electrode solid electrolyte electrochemical reactor, which comprises a membrane electrode assembly, a flow field plate, a sealing gasket and a reference electrode, wherein the membrane electrode assembly comprises an active area and an inactive area capable of generating electrochemical reaction; the inactive area is located on the periphery of the active area; the inactive area is an exposed area of a solid electrolyte membrane; the flow field plate comprises a cathode flow field plate and an anode flow field plate; the membrane electrode assembly is clamped between the cathode flow field plate and the anode flow field plate; the sealing gasket is arranged between the membrane electrode assembly and the flow field plate and is located in the inactive area of the membrane electrode assembly; an access point of the reference electrode is arranged outside the sealing gasket; and ion connection is kept with the inactive area through an electrolyte solution or under an assist of the solid electrolyte membrane. The electrochemical reactor provided by the invention can start or cancel monitoring by the reference electrode at any time, does not affect the working states of an anode and a cathode and does not affect the structure and the air-tightness of the reactor.

The invention relates to power batteries, and discloses a power battery cover plate, which includes a base plate, an anode pole and a cathode pole, wherein two pole holes used for penetrating through the anode pole and the cathode pole respectively are formed in the base plate; the anode pole or the cathode pole penetrates through the end part of the base plate and is respectively riveted to one end of an anode riveting pressing block or one end of a cathode riveting pressing block; an anode connecting bolt is arranged at the other end of the anode riveting pressing block; a cathode connecting blot is arranged at the other end of the cathode riveting pressing block. The invention has the advantages that the power battery cover plate facilitates battery connection and improves safety of batteries.

The invention discloses a portable computer case. The portable computer case comprises a case body, wherein a mainboard is arranged inside the case body, a heat conduction layer is arranged at the inner side of the case body, a plurality of heat conduction rods are arranged in case walls of the case body, a heat dissipation board is arranged at the outer side of the case body, one end of each heatconduction rod is connected with a heat conduction layer, the other end of each heat conduction rod is connected with the heat dissipation board, a sliding cavity is formed in the lower portion of the case body, a sliding block is arranged inside the sliding cavity, a pulling rod is arranged at the left side of the sliding block, the left end of the pulling rod extends out of the sliding cavity and is provided with a handle, a supporting rod is arranged at the left end of the lower side of the case body, a fixed device is arranged at the lower end of the supporting rod, a buffer device is arranged at the right end of the lower side of the case body, a connecting rod is arranged at the lower end of the buffer device, a wheel base is arranged at the lower end of the connecting rod, and a universal wheel is arranged on the wheel base. The portable computer case is simple in structure, convenient to use, convenient to move, high in stability, good in heat dissipation effect and long in service life.