170results about How to "Guaranteed airtight" patented technology

The invention relates to a stabilization and solidification method of highly toxic waste residues containing one or more of mercury, arsenic, chromium, cadmium and cyanide. Heavy metal is stabilized through chemicals, and then the highly toxic waste residues are sequentially wrapped with gypsum plus paraffin and epoxy resin. After four times of wrapping and two times of solidification, highly toxic substances in the waste residues are fully solidified into a solidified body, and the generated solidified body is high in strength and long in stability, and can be buried conveniently later.

The invention discloses a sealed sampling device for a gas sample. The sealed sampling device comprises an outer pipe, an inner pipe and a double-layer pipe, wherein the outer pipe comprises a connecting mandrel for controlling slurry to enter and exit from a channel, a drill bit and a connecting pipe assembly positioned between the connecting mandrel and the drill bit; the inner pipe at least comprises a connecting sleeve, an upper ball valve, a sealing pipe and a lower ball valve; one end of the connecting sleeve is rotatably connected to the connecting mandrel in a sleeving manner; a core barrel is arranged between the upper ball valve and the lower ball valve, and serves as a storage carrier of a core; the core barrel can be sealed by closing the upper ball valve and the lower ball valve; the tail end of the double-layer pipe is against the connecting mandrel and can move back and forth under the control of the connecting mandrel; and a control element for controlling the opening and closing of the upper ball valve and the lower ball valve is arranged at the front end of the double-layer pipe, so that the upper and lower ball valves are opened or closed by moving the control element forwards or backwards. Therefore, the device is compact in structure, good in seal effect and wide in application range; and during drilling, only the outer pipe rotates and the rest of components do not rotate, thereby ensuring that the core can smoothly enter the core barrel.

The invention discloses a device and a method capable of determining real-time consolidation penetration parameters of tailing sands. The device comprises a soil sample consolidation system, a pressure pulse method based real-time penetrability measuring system, a flow method based real-time penetrability measuring system, and a data acquisition processing system. The left end of the soil sample consolidation system is connected with the flow method based real-time penetrability measuring system through a left end air outlet and a left end air inlet. The right end of the soil sample consolidation system is connected with the pressure pulse method based real-time penetrability measuring system through a right end air outlet and a right end air inlet. According to the device and the method capable of determining real-time consolidation penetration parameters of the tailing sands, air is used as a penetration medium, so that no obvious influence is generated on drainage of the soil samplein a consolidation process, a reliable basis can be provided for the penetrability of the soil sample, the error of a penetrability test can be effectively reduced, tailing sands with small particlesize can be measured through the pressure pulse method based real-time penetrability system, and a measuring problem that the penetrability of the tailing sands with small particle size is difficult to measure in the prior art is solved.

The invention discloses a vaginal secretion sampling device used for gynecological clinic. The vaginal secretion sampling device comprises a sampling sleeve, wherein arc-shaped expansion pieces whichare symmetrically arranged are rotationally hinged to the left end of the sampling sleeve, silica gel is arranged on the outer walls of the arc-shaped expansion pieces, the two arc-shaped expansion pieces are matched to form a cone shape, a movable suction pipe is movably arranged in the sampling sleeve, and the left end of the movable suction pipe is fixedly connected with a sampling collection head of a hollow structure. The vagina is expanded through the arc-shaped expansion pieces, secretions at the deep position in the vagina can be sampled easily, the trouble that the secretions at the deep position in the vagina cannot be directly sampled in the past is solved, a secretion sample is sucked through negative pressure, the operation is easy, convenient and rapid, the sampling difficulty is reduced, meanwhile, after sampling is completed, the sample is relatively sealed, so that the sample is prevented from being polluted by the outside to influence the accuracy of a detection result.

The invention discloses an improved roadway boring machine. The upper portion of a rack is connected with a hydraulic motor and a cantilever, the outer side of the cantilever is connected with a cutting head, a nozzle is arranged on the outside of the cutting head, and a water injection pipe is further arranged inside the cantilever; a first through hole is formed between the cantilever and the water injection pipe, the hydraulic motor is connected with a water injection ring through a support frame, and the water injection ring is connected with a water inlet pipe through a water pipe joint; and the outside of the bearings are sleeved with sealing rings, each sealing ring comprises a first rubber ring and two second rubber rings, and the two second rubber rings are respectively located on both sides of each bearing, first springs are arranged between the second rubber rings and the first rubber rings, the two sides of the second rubber rings and the first rubber rings are connected through connection rigs, annular cavities are further formed inside the first rubber rings, two second through holes are formed inside the annular cavities, and the outside of two first rubber rings are sleeved with sleeve tubes. The improved roadway boring machine can improve the deficiencies of the prior art, and a spray structure of the improved roadway boring machine has a better sealing and a cooling effect.

The invention relates to a cathode electrolytic cell of a device for preparing metallic sodium by electrolysis and belongs to the technical field of preparing and sealing metallic sodium by electrolysis and fusion. In a sealing device, the place between the outer wall of a Na-beta-Al2O3 membrane tube and the inner wall of an electrolytic cell main body is taken as a cathode chamber, so welding sealing between metal and ceramic is avoided; the cathode electrolytic cell is simple in structure, easy to dismount, easy in implementation of a sealing structure, good in airtightness of the device and capable of providing effective guarantee for preparation of high-purity metallic sodium by electrolysis.

The invention discloses an air inflation sealing device of a rail train door and a control method thereof. The air inflation sealing device comprises an air inflation and exhaust control relay K1, a first time-delay relay J1, a second time-delay relay J2, a train door closing in-place switch S1, a pressure detection switch S2, an air inflation electromagnetic valve Y1, an air exhaust electromagnetic valve Y2, a pressure indicator light H2 and an air inflation sealing rubber strip. The air inflation sealing device which is built by the relay, the time-delay relays and the quick air inflation sealing rubber strip eliminates the influence of software, is high in reliability, low in cost, small in size and small in requirement for the mounting space of a train, provides good late reformation, guarantees the air-tight seal property of the rail train, improves the comfort level of passengers and has a good application prospect.

The invention discloses an airtight sliding window. The airtight sliding window comprises a window frame, a sash, rolling wheel assemblies, a handle and a transmission mechanism; the rolling wheel assemblies are arranged on an upper frame of the sash and a lower frame of the sash correspondingly; each rolling wheel assembly is provided with a guide mechanism for performing push-pull guide on the sash as well as a translation mechanism for driving the sash to translate perpendicular to the sash push-pull direction; the handle is pivoted with the sash and is linked with one end of the transmission mechanism; the other end of the transmission mechanism is in transmission connection with the translation mechanism; the sash performs push-pull movement in the length direction of the window frameand translates in the direction perpendicular to the sash push-pull direction through the translation mechanism. The translation movement among the sashes can be controlled through the handle, the gap is reduced and the airtightness is enhanced.

The invention relates to a barrier-free high-sound-insulating fireproof door for a ship. The barrier-free high-sound-insulating fireproof door is characterized in that a door leaf (5) and a lifting seal device arranged at the bottom of the door leaf (5) are included, the lifting seal device comprises a fixed frame (1) and a lifting frame (2), at least two sets of lifting linkage devices (3) are connected between the fixed frame (1) and the lifting frame (2), the fixed frame (1) is provided with a sliding groove (1.1), an embedded groove (2.1) is formed in the bottom of the lifting frame (2), each lifting linkage device (3) comprises a sliding block (3.1), a fixed block (3.2), a hinge rod (3.3) and a reset spring (3.4), the sliding blocks (3.1) are arranged in the sliding groove (1.1), and the outer end of the outer sliding block (3.1) is connected with a horizontal contact (4). The barrier-free high-sound-insulating fireproof door for the ship can guarantee that the ground in the fireproof door and the ground outside the fireproof door are equal in level in the using process, and the barrier-free high-sound-insulating fireproof door has a sealing effect in the closing process.

The invention is suitable for the fields of ejection lifesaving and airborne landing, and discloses a quick starting joint which mainly comprises a joint seat, a filler neck assembly, a pin, a gasket,a clamping jaw assembly and a pull rod assembly; after receiving a start instruction, the pull rod assembly and the joint seat generate relative motion; when a joint assembly moves, a clamping jaw ofthe clamping jaw assembly is driven to rotate, so that a locking part of the clamping jaw assembly is opened and quickly disengaged from a locked part, the locked part is quickly disengaged from a locked main body, the purpose of quick disengagement is achieved, a subsequent mechanism unlocking device works, and time delay caused by slow starting is avoided.

The invention relates to the technical field of lithium battery production, and discloses a transfer device for lithium battery production comprises a box body, a thermostat, a temperature sensor, a fire extinguisher, an electric telescopic rod, a first motor, a second motor and a third motor. A grasping mechanism is arranged on the upper side of the box body. A cavity is arranged on the lower side inside the box body, and an inner supporting plate is arranged on the upper side of the cavity. A second guide groove is formed in the upper side of the inner supporting plate and connected with a direction locking wheel in a rolling mode, the direction locking wheel is rotationally connected with a second supporting frame, the upper end of the second supporting frame is fixedly connected with a second supporting plate, a first supporting plate is arranged on the upper side of the second supporting plate, and a damping mechanism is arranged between the second supporting plate and the first supporting plate. The middle of the second supporting plate is in threaded connection with a third lead screw. The left and right sides of the third lead screw are rotationally connected with the side wall of the inner supporting plate, and a first supporting frame is arranged on the upper right side of the inner supporting plate. The transfer device for lithium battery production is simple in structure, the lithium battery transfer safety can be greatly improved, meanwhile, lithium batteries can be taken and placed rapidly and conveniently in the transfer process, time and labor are saved, and the transfer device for lithium battery production has the available value in the technical field of lithium battery production.

The invention relates to a cleaning device for an air conditioner device, and belongs to the technical field of cleaning hollow objects through a dedicated method or device. The device comprises a vehicle body, a ventilation hose and a high-pressure air blower; a spindle is rotatably connected in the vehicle body, a fan is connected to the spindle, a driving device is arranged on the bottom face of the vehicle body, an air pipe is communicated to the side wall of the vehicle body and is connected with a frame body, the side wall of the frame body is rotatably connected with multiple rotating shafts, rotating blades and cleaning brushes are connected to the rotating shafts, multiple ventilation holes are formed in the side wall of the frame body, the bottom face of the vehicle body is connected with a rack body, the upper surface and the lower surface in the rack body are provided with gear rings, and fan gears are engaged with the gear rings. A lever and two cylinder bodies are connected to the bottom face of the vehicle body, pistons are in sliding fit with the interiors of the cylinder bodies, piston rods are connected to the pistons, openings are formed in the cylinder bodies, cover plates are hinged to the openings, and the two piston rods are hinged to two ends of the lever; the rack body and one end of the lever are connected with a supporting rod. The device is easy andconvenient to operate, air pipe cleaning is achieved through control over the high-pressure air blower, and the automation degree is high.

The invention provides an epidemic prevention isolation ward and an epidemic prevention isolation ward group with the same. The epidemic prevention isolation ward comprises one or more house-shaped pneumatic membrane units, a bathroom integration unit fixedly connected with all the pneumatic membrane units in a sealed mode or a gas inlet device arranged in one pneumatic membrane unit, having a sterilization treatment function and communicated with the interior of each pneumatic membrane unit so as to inflate sterilized gas into each pneumatic membrane unit, and a waste treatment device which is communicated with the pneumatic membrane units and the bathroom integration unit so as to store waste gas, waste liquid and waste residues and carry out harmless treatment on the waste gas, the waste liquid and the waste residues. The structure is simple, the manufacturing cost and time are greatly saved, daily storage is facilitated, and transportation is rapid. Besides, the protective isolation effect is good, the whole system can be ensured to be closed, and the structure and the installation process of a building support are greatly simplified. Meanwhile, indoor air flowing can be effectively managed, and polluted air and sewage are treated in a centralized mode.

The invention provides a steam cooking device which comprises a drain valve assembly, a connecting pipe and a waste water pump; a water inlet is formed in the drain valve assembly, the water inlet is formed in the bottom wall of an inner container, and condensate water flowing through the bottom wall of the inner container is suitable for entering the drain valve assembly through the water inlet; one end of the connecting pipe is connected to the end, away from the water inlet, of the drain valve assembly; and the waste water pump acts on the connecting pipe, and the other end of the connecting pipe extends to the outer side of the inner container. By means of the structural arrangement mode, the condensate water formed in the inner container can be rapidly and fully guided to the outside, so that the condensate water finally remaining on the bottom wall of the inner container is little; therefore, the defect that in the prior art, condensate water is dried in an electric heating mode to remove the condensate water, so that marks are formed on the inner wall of the steam cooking device, and the user experience is affected can be overcome.

The invention relates to a rock drilling machine and an axial bearing module. The rock drilling machine (5) is equipped with an axial bearing (18) having at least one axial piston (19, 20) for axially positioning a drill shank (7) and for damping stress pulses returning from the rock. The axial bearing comprises a module (21) that is detachable in one piece from one installation direction. The axial bearing module comprises the required pressure medium channels (27), seals (37, 37a, 37b, 37c), bearing surfaces (18), and a module frame (22, 25, 38a, 38b) having at least bearing housing in connection therewith.

The invention discloses a high leak tightness sash window, consisting of a window frame, window sashes, guide sliding blocks, pulley wheels, a slideway and a sealing device, wherein, an upper arm and a lower arm of the window frame are provided with vertical concave chutes, a sealing frame is arranged on the periphery of a protruding side wall in the inner side of the window frame, each window sash is respectively slidebly arranged between the concave chutes of the upper arm and the lower arm of the window frame by the upper and lower guide sliding blocks and the pulley wheels, a transverse concave chute is respectively arranged between the vertical concave chutes corresponding to each guide sliding block and each pulley wheel of the window sash close to a left arm and a right arm of the window frame and the internal side protruding side arm of the upper arm and the lower arm of the window frame; each window sash can slide left and right and lengthways and can be closed widthways to fit with sealing strips on surrounding sealing frames to realize high leak tightness. The sash window has the advantages of convenient use of the sash window and high leak tightness of a casement window, overcomes the sealing dead angle and fulfills the purpose of saving energy and protecting environment.

The invention provides a carbon powder container. The carbon powder container comprises a container main body, an end cover, a driving piece, an annular gate piece, a guide rod, a protective cover and a cylindrical closed-ended positioning cover, wherein a through hole is formed in the bottom wall of the positioning cover in a penetration mode; a cylindrical part passes through the through hole; the positioning cover sleeves the end cover along the cylindrical part in a sling manner; a fixed part adjacent to the annular gate piece is arranged on a second end surface, close to the outer end of an opening, of the positioning cover; a first lock buckle part is further arranged on the positioning cover; a fixed column is arranged inwards on the bottom wall of the protective cover and is adjacent to the guide rod; the protective cover is provided with a second lock buckle part matched with the first lock buckle part. By virtue of fixed matching among the positioning cover, the protective cover and the annular gate piece, mechanical loss or elastic force attenuation is avoided, a powder outlet can be sealed even in the jolting transportation process, and the sealing property of the carbon powder container is improved favorably.

The invention relates to a goaf gas collection zone partition extraction method. The technology used includes the following steps that an upper corner area of a fully-mechanized face is separated froma goaf through isolation walls; the isolation walls are built by regarding anchoring cables as frameworks and by waste materials such as underground gangue, and is sprayed with airtight spraying materials; as a working face advances, the isolation walls are arranged at intervals, and an air returning side gas collection zone in the goaf is divided into several isolation zones; in isolation areasfrom the working face into the goaf phase; nogs are arranged to assist and support top plates; extraction main pipes arranged in air returning lanes are divided into a plurality of extraction side pipes which are correspondingly connected into each partition, simultaneous extraction in the goaf air returning side deep portion and upper corner surrounding areas are achieved, and gas over-limit caused by a large amount of high concentration gas gathering in an upper corner is avoided; and when new isolation walls are set up and the extraction side pipes are can enter the goaf, a plurality of holes are correspondingly distributed on the extraction pipes, the extraction air inlet area is increased, and the extraction amount is increased.