43results about How to "Efficient sealing" patented technology

The invention discloses a moisture waste heat recycling composite drier which comprises a drying tunnel section, a heat source section and a circulating fan section. The heat source section and the circulating fan section are arranged at two ends of the drying tunnel section respectively. Hot air generated by the heat source section passes through a hot air duct and flows to the drying tunnel section through dragging of the circulating fan section. A moisture removing waste heat exchanging module is further arranged at the top of the drying tunnel section and comprises two board-type heat exchangers, a mesh drainage board, a water collecting trough and a moisture removing fan. The mesh drainage board is arranged between the two board-type heat exchangers. The moisture removing fan and the water collecting trough are arranged above and below the mesh drainage board respectively. Moisture removing air ducts communicated with the tail end of the drying tunnel section are arranged at two sides of the drying tunnel section. The two board-type heat exchangers are communicated with the moisture removing air ducts and moisture is collected in the mesh drainage board from the two sides. Circulated hot air moisture waste heat is effectively recovered, so that the use rate of fire coal is greatly reduced, the cost for drying agricultural products is reduced and the moisture waste heat recycling composite drier is beneficial to environment protection.

The invention discloses an aqueous expansion-preventing transparent primer of a medium-density fiber board as well as a preparation method and application thereof. The aqueous expansion-preventing transparent primer of the medium-density fiber board is prepared from 65-70 parts of aqueous acrylic resin, 15-16 parts of aqueous expansion-preventing resin, 0.5-1.5 parts of grinding auxiliary agent, 2-2.5 parts of film-forming auxiliary agent, 0.1-0.5 part of flatting agent, 0.3-0.8 part of defoaming agent, 0.5-0.8 part of thickening agent and 10.4-11.6 parts of water. By using the aqueous expansion-preventing transparent primer of the medium-density fiber board, the drying and grinding performances are guaranteed, and the expansion phenomenon is not generated after the aqueous expansion-preventing transparent primer is coated on the medium-density fiber board; the aqueous primer is safe and environmentally-friendly, and has efficient sealing performance; and the expansion effect of the wood fiber is eliminated by just requiring one working procedure of spray-coating the aqueous expansion-preventing transparent primer of the medium-density fiber board during the primer treatment of the medium-density fiber board, thus the working procedure is simplified, and the efficiency of grinding personnel is improved.

The invention relates to a medium and high temperature roller crusher with a high efficiency composite cooling system. The medium and high temperature roller crusher with the high efficiency compositecooling system comprises a transmission device, a crushing unit, a miniature heat pipe cooling system, a water cooling system, a driven end sealing system and a measurement and control system, wherein the miniature heat pipe cooling system efficiently dissipates heat to a cavity of a roller through a miniature heat pipe, and symmetric fluid grooves of a micropore accelerate the cooling of the roller; in the water cooling system, a part of high pressure water is sprayed onto the inner wall of the upper part of the cavity of a roller shaft and a condensation section of the heat pipe for heat transfer through a high pressure cooling water spray head, and a part of high pressure water is sprayed out through axial small spray pipes and a radial small spray pipes of an immersion type spray headto generate high-speed jet flow and rotational flow which are in opposite directions, so that accumulated water highly forms turbulence flow; recesses of the inner surface of the roller shaft strengthens the surface heat dissipation; the cooling systems endow the medium and high temperature roller crusher with high efficiency cooling performance; and the driven end sealing system is provided witha reverse thread groove seal, an air cavity seal, and a ring-shaped air bag air seal, so that the good shaft end seal can be realized. The high efficiency cooling sealing characteristic of the mediumand high temperature roller crusher can ensure the safe and reliable operation of the medium and high temperature roller crusher in the medium and high temperature region of a grate cooler.

The invention discloses a solar composite dryer which comprises a drying tunnel section, a moisture removal and waste heat exchange module, a flue waste heat exchanger, a heat source section, a circulating fan section, a hot air channel, a fresh air inlet and a solar collector. The moisture removal and waste heat exchange module and the flue waste heat exchanger are arranged on the top of the drying tunnel section. The solar composite dryer has the advantages that solar energy is effectively utilized to generate hot air, waste heat of moisture of the hot air and waste heat of a flue are efficiently recycled, the fuel coal utilization rate is greatly reduced, the agricultural product drying processing cost is reduced, and the solar composite dryer is favorable for protecting environments.

The invention discloses a battery cover plate with a novel post terminal sealing structure. The battery cover plate is characterized in that the battery cover plate comprises a cover plate body (3); the left and right ends of the cover plate body (3) are respectively provided with a first through hole (31) and a second through hole (32); a positive post terminal (7) is arranged in the first through hole (31), and a negative post terminal (8) is arranged in the first through hole (32); a ceramic ring (6) is arranged between and hermetically connected with the lower part of the inner side surface of the first through hole (31) and the lower part of the positive post terminal (7); another ceramic ring (6) is arranged between and hermetically connected with the lower part of the inner side surface of the second through hole (32) and the lower part of the negative post terminal (8); and a positive upper gasket (9) and a negative upper gasket (10) are respectively and fixedly connected withthe left and right ends of the bottom of the cover plate body (3). The battery cover plate of the invention can effectively seal the post terminals of the battery, avoids leakage at the sealing placesof the post terminals, ensures the safe use of the battery, and prolongs the service life of the battery.

The invention discloses a liquid extraction device and a liquid extraction method for low water-binder ratio concrete. A forming mold filled with the low water-binder ratio concrete and seal rings at two ends outside are combined to form a sealed test mold for standard curing of the low water-binder ratio concrete, and the maintained sealed test mold is cut into small section samples through a cutting machine; a sample cabin is cylindrical, a liquid phase in the low water-binder ratio concrete is pressed and taken in the sample cabin by pressing a force transfer rod of a platen of an electro-hydraulic pressure tester, and a base where the sample cabin is carried is arranged on a working platform of the electro-hydraulic pressure tester; one end of a guide pipe is connected to a syringe needle while the other end of the guide pipe communicates with the top of a vacuum pipe; the collected liquid phase of the low water-binder ratio concrete is quickly sucked in vacuum and hermetically stored to prevent a liquid from being carbonized and evaporated. The device and method disclosed by the invention realize original taste extraction of the liquid phase of the low water-binder ratio concrete by way of sealed standard curing and high pressure squeezing, thereby laying a foundation for analyzing the liquid phase of the low water-binder ratio concrete.

The invention specifically discloses a double buckling-restrained steel brace for continuous restraint on yield thin wall surface, which solves the problems of inferior reliability and durability and difficult engineering connection and installation of full-steel buckling restrained brace under the action of strong vibration; a core axial force steel comprises a yield segment, a transition segment and a connection segment, wherein the yield segment and the transition segment are sleeved with sealed outer layer restrained steel sleeves, the yield segment is a thin-wall steel slat with the rectangular cross section, the connection segment comprises two parallel connecting steel plates, the yield segment is circumferentially provided with a continuous restraint part comprising two restraint steels, and both the two restraint steels are continuously provided, in the axial direction of the yield segment, with thin-wall steel limbs which are close to the thin wall surface and parallel to the thin wall surface of the yield segment. Such a brace performs continuous restraint on the thin wall surface of the yield segment and is provided with the sealed outer layer restrained steel sleeves, thereby enhancing performance stability, reliability and durability thereof under the dynamic action of strong vibration, in addition, the brace according to the invention has easy manufacturing and convenient installation and is used for earthquake-against fortification and reinforcement, especially for the seismic disaster prevention of important projects in high-earthquake-intensity regions.

The invention discloses a neutron beam window fastening and sealing device. The neutron beam window fastening and sealing device comprises a neutron tube connecting flange, a neutron beam window, fastening bolts and a sealing component; a plurality of first bolt holes are formed in the neutron beam window, and a plurality of corresponding second bolt holes are formed in the neutron tube connectingflange; each fastening bolt comprises a screw rod and a bolt head which is located at one end of the screw rod, a fastening nut is arranged at the other end of the screw rod, the fastening nut is provided with a torque limiting mechanism used for driving the screw rod to rotate, the screw rod is further provided with a first elastic component, a bolt head groove is formed in the edge of the rearside of each second bolt hole, and the bolt head groove is formed in the edge of the rear side of the second bolt hole, and when fastening and sealing is carried out, the bolt head penetrates throughthe second bolt hole and rotates, and the bolt head can be embedded into the bolt head groove under the pushing of the first elastic component. The neutron beam window fastening and sealing device provided by the invention is simple in structure, simple in operation, not easy to collide and interfere, and can be used for fastening and sealing the neutron beam window through cooperation with an electric wrench accurately and efficiently.

The invention relates to a vacuum packaging device, in particular to a new energy lithium battery vacuum packaging device. According to the new energy lithium battery vacuum packaging device, different processing can be conducted on packaging bags at the same time, and people do not need to move the packaging bags everywhere. The new energy lithium battery vacuum packaging device comprises a bottom plate, a reciprocating mechanism, and a packaging bag sealing mechanism, wherein a workbench is arranged on the base, the reciprocating mechanism is arranged on the bottom plate, and the packaging bag sealing mechanism is arranged on the workbench. The packaging bag sealing action can be achieved through the packaging bag sealing mechanism, and then efficient sealing of the packaging bag sealingmechanism is achieved under cooperation of the reciprocating mechanism; and by arranging an intermittent discharging mechanism, packaging paper can be fed, and then under cooperation of the reciprocating mechanism, intermittent downward movement of the packaging paper is achieved.

The invention discloses a double-rotor internal combustion engine, which comprises a cylinder, a main shaft, left and right rotors, and a left and right intermittent motion mechanism. The cylinder includes an axially penetrating cylinder hole, the rotor includes blades and a support body, and the intermittent motion mechanism is a closed differential gear train including a non-circular gear pair, which can realize continuous and smooth shifting. The left rotor, right rotor and main shaft are located inside the cylinder and have coaxial rotation degrees of freedom. The blades of the two left and right rotors are radially juxtaposed, and the space between the blades constitutes a combustion chamber. The two rotors rotate periodically and intermittently during the ignition, power, exhaust, suction, and compression processes of the internal combustion engine, and the left rotor moves When the right rotor is stationary, the left rotor is stationary when the right rotor is moving. The left and right rotors transmit their respective intermittent rotations to the main shaft through the left and right intermittent motion mechanisms, and convert them into constant rotational speeds. Under the action of inertia, the main shaft feeds back its own rotation to the left and right rotors to control its acceleration, deceleration and static process.

The invention discloses a large soundproof sealing device for a door opening and belongs to the technical field of sound-proof sealing treatment for a roof door opening. The large soundproof sealing device comprises a circular seal strip and a door plate movably disposed on the circular seal strip. The circular seal strip is of a square structure and disposed around the door opening. The circular seal strip comprises a frame and elastomer disposed on the frame. The door plate comprises a left door and a right door and further comprises a left travelling mechanism and a right travelling mechanism; the left travelling mechanism allows the left door to move vertically and transversely; the right travelling mechanism allows the right door to move vertically and transversely. The left and right doors and the door opening are compressively sealed by means of butt-fastening seal strips. Combination of the two sealing manners enable the whole door opening to be seamlessly sealed; the large soundproof sealing device is simple in structure and good in soundproof and denoising effect; special sealing equipment formed of the large soundproof sealing device has a high market value.

The invention discloses a vertically-distributed enclosed ink production line, comprising a feeding unit, a pre-dispersion unit, a grinding unit, an adjusting unit, a filling unit, an enclosed pipeline system and a monitoring system; the five units are connected in sequence through the enclosed pipeline system; the monitoring system monitors and adjusts the five units; at least the feeding unit, the pre-dispersion unit and the grinding unit among the five units are vertically distributed, so that space used by ink production equipment is saved greatly; the enclosed pipeline system allows production devices to be seamlessly abutted, workers are avoided contacting ink material, ad leakage of the material is prevented. The monitoring system provides the production line with instant monitoringand controlling functions, so that quality of the ink is more stable; labor intensity can be greatly reduced, land cost and manpower cost are saved for enterprises, production efficiency and production safety coefficient are increased, stability of product quality is improved, and operating environment is improved for workers.

The invention discloses a treatment system for nuclear power waste. The system includes a main body, and the two ends of the main body are provided with a feeding pipe and a discharging pipe. The mainbody is internally provided with two sets of first limit plates and two sets of second limit plates. The upper end face of the main body is provided with a drying box, and the portion, on one side ofthe drying box, of the upper end face of the main body is provided with a control panel. The end faces of the two sides of the drying box are fixedly provided with heating mechanisms, one side end face of each heating mechanism is fixedly provided with an exhaust duct, the upper end face of the drying box is fixedly provided with a first motor and a second motor, the drying box is internally fixedly provided with a first fixation plate and a second fixation plate, and the first fixation plate and the second fixation plate are internally provided with a first screw rod and a second screw rod through bearings respectively. In the waste treatment process, activated carbon can be easily replaced and dried effectively, meanwhile the production of secondary waste is effectively reduced, and thetreatment efficiency is improved.

The invention discloses an instrument sterilization device, an instrument sterilization system and an instrument sterilization method, and relates to the technical field of instrument sterilization. The instrument sterilization device is applied to a plasma sterilizer and comprises a device body, a sealing strip and a sterilization assembly; the device body is for placing an instrument to be sterilized, and the device body has opposite first and second ends; the sealing strip is disposed at the first end of the device body and is used for closing or opening the device body; the sterilization assembly is disposed at the second end of the device body; and after the device body is placed in the plasma sterilizer and subjected to vacuumizing treatment, the sterilization assembly is arranged todeliver hydrogen peroxide vapor into the device body under action of pressure to sterilize the instrument. The instrument sterilization device is safe, hygienic, and high in sterilization efficiencyand quality, can reduce cumbersome operation of medical staff during use, and greatly improve the work efficiency of the medical staff.

The invention relates to a vacuum blow-down valve which comprises a valve body, a main valve element assembly arranged in the valve body to switch on or off the valve body, and an inner valve elementassembly arranged in the main valve element assembly and used for achieving sealing and unsealing of the interior of the valve body. A communicating flow channel is formed in the valve body, and the interior of the valve body is used for intermittently introducing air or forming vacuum. The main valve element assembly is arranged in the valve body, and realizes telescopic movement towards one sideof the communicating flow channel through the ventilation state in the valve body. The inner valve element assembly is arranged on the side, deviating towards the communicating flow channel, of the main valve element assembly and used for achieving sealing between the end of the main valve element assembly and the inner wall of the communicating flow channel. A differential pressure driving technology is adopted for control, the streamline design of the communicating flow channel enables the circulation resistance to be minimum, the circulation efficiency to be maximum and the vacuum sewage conveying efficiency to be optimal, an air supplementing and noise reducing technology is adopted for active noise reduction, an inching active odor exhausting technology is adopted, and the higher functionality of the whole structure is achieved.

The invention relates to the technical field of oil and gas well development, and concretely relates to a degradable self-plugging-removal temporary plugging agent for water-based solid-free reservoir drilling fluid suitable for oil and gas well drilling, and a preparation method thereof The degradable self-plugging-removal temporary plugging agent for the reservoir drilling fluid is a blend of a biodegradable polymer temporary plugging material and acid-soluble temporary plugging particles. Practice proves that acidification degradation can be generated within a period of time after well completion, the temporary plugging rate of the temporary plugging agent is greater than or equal to 98%, the plugging removal rate is greater than or equal to 99%, and the reservoir core permeability recovery value is greater than or equal to 95%; meanwhile, the temporary plugging agent disclosed by the invention has a self-plugging-removal capability, self-plugging removal can be realized by hydrating and decomposing a self-generated acid solution through a biological degradable material during later reverse drainage, the processes of removing mud cakes through acid pickling and the like are not needed, secondary damage to a reservoir is avoided, and the temporary plugging agent is a simple, convenient, efficient and side-effect-free temporary plugging technology.

The invention discloses a solar heat collector applied to an industrial drying system and belongs to the technical field of new energy. The solar heat collector is characterized in that two ends of the solar heat collector are inserted into a water collection tank; two ends of a heat exchanger are respectively connected with two ends of the water collection tank; the heat exchanger is installed in an air duct; an air inlet is communicated with an industrial baking line orderly via the air duct and a draught fan; the back part of the industrial baking line is orderly provided with a smoke channel, an exhaust purifying system and a chimney. The solar heat collector applied to the industrial drying system can dry material via solar energy and is advantaged by pollution avoidance, energy conservation and low cost; and the solar heat collector can be applied to various industrial drying systems.

The invention discloses a sealing device for an electrolytic cell and a manufacturing method thereof. The sealing device for an electrolytic cell includes a main body; a plurality of sealing parts are arranged on the surface of the main body at intervals, and the sealing parts include a sealing body and a foam layer. The foam layer covers the sealing body; compared with the prior art, in the electrolytic cell sealing device of the present invention, the sealing body of each sealing member corresponds to and fits with a slot on the electrolytic cell, and the foam on the sealing member The cotton layer wraps the sealing body and has a certain degree of stretchability, which can effectively seal the slot of the electrolytic cell to prevent the chlorine and hydrogen gas from electrolysis from overflowing through the slot under the cover plate; and multiple seals are located on the The main body can seal multiple or all the card slots on the electrolytic cell at the same time, which is not only easy to operate, but also easy to replace and save time.

The invention relates to the technical field of water stop structures between new and old concrete, in particular to a water stop mounting structure between new and old concrete and a mounting method. The structure comprises an old concrete part and a new concrete part poured on the old concrete part, and further comprises a red copper sheet water stop. The red copper sheet water stop comprises a horizontal part tightly fixed to the surface of the old concrete part through an anchoring structure and a vertical part fixed to the horizontal part and arranged in the vertical direction, the horizontal part and the vertical part form an L-shaped structure, one part of the L-shaped structure is located in the old concrete part, and the other part of the L-shaped structure enters the new concrete part in the direction perpendicular to water flow, the horizontal part is positioned on the downstream side of the vertical part; and the anchoring structure fixes the horizontal part on the surface of the old concrete through a bolt. The structure is simple, the installation and construction method is extremely convenient, damage to an old concrete part can be avoided, the service life of the red copper sheet water stop is prolonged, and great popularization value is achieved.

The invention relates to a valve, in particular to a soft seal abrasion resisting slag discharging valve. The soft seal abrasion resisting slag discharging valve comprises a valve body, a valve cover,a valve plate and a lead screw. The upper end of the valve cover is connected with a support, the valve plate is arranged in the valve body, the inner end of the lead screw penetrates the valve coverand is fixedly connected with the upper end of the valve plate, and the outer end of the lead screw is supported on the support. The inlet end of the valve body is connected with an inlet outer sleeve and an inlet inner sleeve, the outlet end of the valve body is connected with an outlet outer sleeve and an outlet inner sleeve, and the outlet end of the inlet outer sleeve stretches into the valvebody and is sealed and fixed to the inlet part of the valve body. Seal filling is arranged between the inlet outer sleeve and the inlet inner sleeve, the inlet end of the outlet inner sleeve and theinlet end of the outlet outer sleeve are closely attached to the outlet end face of the valve body, and the outlet outer sleeve and the end face of the valve body are fixedly connected through a flange and a bolt. Seal filling is arranged between the outlet inner sleeve and the outlet outer sleeve, and the inlet inner sleeve and the outlet inner sleeve are made of abrasion resisting alloys. By means of the above arrangement, the abrasion resisting degree of an inlet and an outlet of a gate valve can be greatly improved, and the service life of the gate valve is greatly prolonged; the inlet inner sleeve, the inlet outer sleeve, the outlet inner sleeve and the outlet outer sleeve can be replaced, and the equipment repairing cost is reduced.

The invention discloses a large soundproof sealing device for a door opening and belongs to the technical field of sound-proof sealing treatment for a roof door opening. The large soundproof sealing device comprises a circular seal strip and a door plate movably disposed on the circular seal strip. The circular seal strip is of a square structure and disposed around the door opening. The circular seal strip comprises a frame and elastomer disposed on the frame. The door plate comprises a left door and a right door and further comprises a left travelling mechanism and a right travelling mechanism; the left travelling mechanism allows the left door to move vertically and transversely; the right travelling mechanism allows the right door to move vertically and transversely. The left and right doors and the door opening are compressively sealed by means of butt-fastening seal strips. Combination of the two sealing manners enable the whole door opening to be seamlessly sealed; the large soundproof sealing device is simple in structure and good in soundproof and denoising effect; special sealing equipment formed of the large soundproof sealing device has a high market value.

The invention discloses a medicine bottle sealing device which comprises a support, a motor a and a sealing material roll which are connected together are arranged in the support, and a stamping mechanism is further arranged on the support. The device is simple in structure and convenient to use; machining and manufacturing are easy, assembling is convenient, and the manufacturing cost is saved; the medicine bottle is sealed and stamped through the cam mechanism, the sealing speed is high, and efficient sealing of the medicine bottle is achieved; the medicine bottle conveying device can be applied to a medicine packaging production line, and packaging integration of the whole production line is improved.

The invention discloses a composite dryer capable of recycling flue waste heat. The composite dryer capable of recycling the flue waste heat comprises a drying channel section, a heat source section and a circulating fan section, the heat source section and the circulating fan section are arranged at two ends of the drying channel section, and hot air generated by the heat source section passes through a hot-air air channel and flows into the drying channel section by means of drafting of the circulating fan section. The heat source section comprises a suction and draft fan, a combustion furnace and a heat-exchange cavity plate, the heat-exchange cavity plate is formed by connecting a plurality of serially-connected or parallelly-connected cavity plates and sleeved at a flue gas outlet of the combustion furnace, a furnace ash settler is further arranged at the bottom of the heat-exchange cavity plate and integrally formed with the same, a flue waste-heat heat exchanger is further arranged on the top of the drying channel section, a flue gas pipeline is arranged on the sidewall of the flue waste-heat heat exchanger, a tube pass of the heat exchanger is communicated with the heat-exchange cavity plate of the heat-source section via the flue gas pipeline, and fresh air is communicated with the heat source section after entering a shell pass. The composite dryer capable of recycling the flue waste heat has the advantages that circulating hot air and flue waste heat are recycled efficiently, use ratio of fire coal is increased greatly, drying cost of agricultural products is reduced, and environmental protection is benefited.

The invention relates to a new tail sealing device for a liner paper packaging machine. The new tail sealing device is characterized by comprising a station I, a station II, a station III, a station IV and a station V arranged between a left wallboard and a right wallboard in sequence from front to back, wherein the station I is used for stopping the seam of a cylindrical liner in a proper position so as to enter the station II for paper folding; the station II is used for folding the right side paper of the tail of the cylindrical liner and carrying out indentation setting for the upper sidepaper and the lower side paper; the station III is used for folding the upper side paper and the lower side paper which are subjected to indentation setting, and then carrying out indentation settingthe left side paper and gluing; and the station IV is used for folding the left side paper which is subjected to indentation setting to complete tail sealing action and heating glue and drying the glue. The new tail sealing device has the advantages of simplifying the structure and realizing efficient, firm and beautiful tail sealing of the cylindrical liner. The device has a simple structure, less stations and convenience in debugging and achieves a higher automation technology leap and a good solution to the industry problem that the qualified rate of the firm and aesthetic degree of tail sealing of the cylindrical liner is low.

The invention discloses a double-rotor internal combustion engine which comprises an air cylinder, a main shaft, a left rotor, a right rotor, a left intermittent motion mechanism and a right intermittent motion mechanism. The air cylinder comprises an axially-through air cylinder hole, each rotor comprises blades and a supporting body, and each intermittent motion mechanism is a closed differential gear train comprising a non-circular gear pair and can achieve continuous and stable speed change. The left rotor, the right rotor and the main shaft are located in the air cylinder and have coaxial rotational degrees of freedom. The blades of the left rotor and the right rotor are parallel in the radial direction, a combustion chamber is formed by the space between the blades, the two rotors intermittently rotate periodically in the ignition work, air exhaust, air suction and compression processes of the internal combustion engine, the right rotor is static when the left rotor moves, and the left rotor is static when the right rotor moves. The left rotor and the right rotor transmit respective intermittent rotation to the main shaft through the left intermittent motion mechanism and the right intermittent motion mechanism respectively, and the intermittent rotation speed is converted into a constant rotation speed. Under the action of inertia, the main shaft feeds rotation of the main shaft back to the left rotor and the right rotor to control the acceleration, deceleration and static processes of the rotors.

The invention relates to the technical field of natural gas storage, in particular to a rapid detection and alarm device based on LNG storage, which comprises a storage chamber and a storage tank arranged in the storage chamber; the top of the storage tank is provided with a sealing top end, and one end, close to the storage tank, of the inner wall of the top of the storage chamber is provided with an emergency sealing mechanism; and the emergency sealing mechanism is internally provided with a detection assembly, the emergency sealing mechanism is connected with an air draft mechanism, the emergency sealing mechanism comprises three electric telescopic rods which are fixedly mounted in the storage chamber at equal intervals, and detection end barrels are fixedly mounted at the end parts of extension rods of the electric telescopic rods. According to the rapid detection and alarm device, when natural gas leakage occurs at the sealed top end, the natural gas can be extracted at the first time, and whether the natural gas leaks or not is detected through a plurality of natural gas sensors; and by means of a plurality of spiral detection channels, the extracted air can generate cyclone in the bucket-shaped end, so that whether natural gas exists or not can be detected, and the detection effect is improved.

The invention relates to a sealing treatment process of a non-sealed circular connector for electronic industry. Silica gel and a unique curing process are adopted for performing sealing treatment; the non-sealed circular connector can be subjected to effective sealing treatment through steps of tin coating and blocking, contact body mounting, end surface wiping, first-time gel injection, O-shaped ring sleeving, first-time curing, forming die tool sleeving, second-time gel injection, first-time vacuum pumping, second-time curing, third-time gel injection, second-time vacuum pumping, third-time curing, forming die tool removal, sealing property inspection and the like; the treated circular connector is stable in performance, and the qualification rate of sealing property inspection reaches up to 99%; when unqualified products are discovered, the gel is easy to remove and reworking is carried out; the non-sealed circular connector is good in maintainability and meets high-quality requirements of the electronic industry.

The invention discloses a hollow glass aluminum spacing strip with a good sealing performance. The blank material of the aluminum spacing strip is a straight bar-shaped aluminum thin plate, a hollow section composed of an inner wall, a left wall, a right wall and an outer wall is formed through a machine tooling technology, the inner wall is provided with a double-column vent structure, the middle portion of each of the left wall and the right wall is provided with a triangular groove structure along the length direction of the aluminum spacing strip, the middle portion of the outer wall is a welding position, and a weld is arranged along the length direction of the aluminum spacing strip. The hollow glass aluminum spacing strip with a good sealing performance has a reasonable structural design and unique efficacies, and also has the advantages of improvement of the bonding performance between the aluminum spacing strip and the glass, firm and stable combination, convenient bonding, labor and time saving, and efficient sealing operation of the hollow glass due to the arrangement of the triangular groove structures arranged on the left wall and the right wall.

The invention relates to the technical field of smart watches, and further discloses an intelligent medical watch capable of monitoring blood pressure and movement. The watch includes a dial plate, atouch screen is fixedly mounted on the front surface of the dial plate; an upper fixing frame is fixedly installed at the top of the dial plate, a first fixing rod is fixedly installed in an inner cavity of the upper fixing frame, a first watchband is rotatably connected to the outer surface of the first fixing rod, a limiting sleeve is movably connected to the outer surface of the first watchbandin a sleeving mode, and a square buckle is fixedly installed at the top of the first watchband. According to the intelligent medical watch capable of monitoring blood pressure and movement, an infrared scanner, a medical monitoring sensor, a motion monitoring sensor, a data detector and a data transmitter are cooperated with one another, the person wearing the watch can be better monitored in real time, so that the problem that an accident of the wearing person cannot be found in time due to the fact that the intelligent watch cannot perform real-time medical monitoring and motion monitoringon the wearing person is solved, and the practicability of the intelligent medical watch is improved.