42results about How to "Act as a pressure buffer" patented technology

The invention provides a light cold-mixed resin steel bridge deck pavement material. The steel bridge deck pavement material consists of cold-mixed resin, mineral aggregate and fibers, wherein the mass ratio of the cold-mixed resin to the mineral aggregate is (11-20):100; the mineral aggregate comprises light high-strength coarse aggregate, fine aggregate and mineral powder; the mass percentage of the light high-strength coarse aggregate in the mineral aggregate is 20-45 percent; the fibers are chopped steel fibers, and the total mass is 0.5-2 percent of the mass of the steel bridge deck pavement material. The steel bridge deck pavement material is low in density and high in performance, and can play a role in reducing the constant load on a steel deck on the premise of keeping the thickness of a bridge deck pavement structure invariable; or the rigidity of a deck system is enhanced by increasing the thickness of a pavement layer under the condition of keeping the constant load on the deck invariable.

The invention discloses a postoperative pressure-resistant protective nursing device for a liver and gall interventional operation, and particularly relates to the field of medical apparatus and instruments. The device comprises a supporting frame movably arranged on a sickbed. A lead screw is fixed to the top of the inner side of the supporting frame. The parts, on the two sides, of the exteriorof the lead screw are in thread connection with sliding blocks. The bottom of each of the two sliding blocks is connected with a nursing mechanism through a connecting rod. An adjustment limiting mechanism is arranged at the bottom of each nursing mechanism. According to the postoperative pressure-resistant protective nursing device for the liver and gall interventional operation, the two nursingmechanisms are driven by the lead screw to move to be attached to the two shoulders of a patient, and because of engagement between a gear and a rack, at the moment, each nursing mechanism not only moves inwards, but also turns for a certain angle, the phenomenon that heat under a quilt is lost too quick because the quilt gets away from the chest of the patient too far is avoided for sure, it is also guaranteed that the quilt does not press a wound, it is achieved that the device adapts to patients of different figures, the nursing mechanism can be stabilized during long-term using with continuous pressing, and the service life of the whole device is prolonged.

The invention discloses a package sealing airtightness detection device, and the device comprises a rack, a supporting platform disposed on the rack, an air cylinder disposed on the rack, a pressure plate which is connected with the air cylinder and located exactly above the supporting plate, a pressure sensor which is disposed on the supporting platform, and an image collection sensor which is disposed on the rack and faces the supporting platform. The pressure plate is used for applying pressure to a package bag, and the pressure sensor detects the value of the pressure. The image collection sensor monitors the condition of the package bag, thereby judging whether the sealing of the package bag meets the requirements.

The invention belongs to the technical field of pipelines, and provides a high-pressure-resistant and impermeable heat-preservation composite pipeline and a preparation method thereof. The heat-preservation composite pipeline comprises an inner-layer working layer, a middle-layer insulating layer and an outer-layer protective layer which are sequentially arranged from inside to outside, wherein the inner-layer working layer comprises an impermeable barrier layer, a polyethylene material layer, a modified reinforcing layer, a heat-sensitive micro-foaming adhesive layer and a prepreg tape winding layer which are sequentially arranged from inside to outside, wherein the polyethylene material layer is a PERT-II type high-density polyethylene material layer, the impermeable barrier layer is made of nylon MXD6 or ethylene / vinyl alcohol copolymers, the modified reinforcing layer is a glass fiber reinforced nylon MXD6 layer, the prepreg tape winding layer is a glass fiber reinforced polyethylene prepreg tape layer, and the modified reinforcing layer is composed of the following components of, in parts by weight, 35-50 parts of nylon MXD6, 15-50 parts of glass fiber, 0.2-1 part of a silanecoupling agent, 1-2 parts of an antioxidant, 0.5-1 part of a lubricant and 5-15 parts of a toughening agent. The heat-preservation composite pipeline and the preparation method solve the problem thatthe high-density polyethylene composite heat preservation pipeline is low in pressure resistance.

The invention relates to the technical field of artificial quartz, and especially relates to an explosion-proof and self-cleaning artificial quartz plate and a preparation method thereof. The productcomprises a self-cleaning layer, an antibacterial layer, a fireproof layer, a buffer layer, an explosion-proof layer, and a substrate layer; the explosion-proof layer is arranged on the substrate layer, the buffer layer is arranged on the explosion-proof layer, the fireproof layer is arranged on the buffer layer, the antibacterial layer is arranged on the fireproof layer, and the self-cleaning layer is arranged on the antibacterial layer; the substrate layer and the explosion-proof layer are internally provided with several fixing pieces, and the fixing pieces have downward groove shaped structures; and several through holes are opened at the bottom of the plate of the substrate layer and are arranged at the length direction, and the cross sections of the through holes are any one of circle, rectangle or isosceles triangle. The through holes are arranged in order to play pressure buffering effects, reduce weight of quartz plates, and reduce production and transport costs; at the same time the problem that the artificial quartz plate is easy to fragment without stain resistance and antibacterial property, and the like is also solved.

The present invention relates to the technical field of display, in particular to a piece of pressure detecting paper and a preparation method thereof. The pressure detecting paper comprises a paper layer and a pressure sensitive color developing layer adhered to the paper layer. The pressure sensitive color developing layer is prepared by the following raw materials, by weight: 15 to 30 parts ofleuco dye microcapsules, 9 to 18 parts of spacing agents, 10 to 15 parts of adhesives, 15 to 30 parts of developer microcapsules, 1 to 3 parts of surfactants, and 30 to 45 parts of solvents. The pressure detecting paper has the flat paper surface and the smooth surface; the pressure sensitive color developing layer coated on the paper layer is not easy to fall and has good staining-resistant and yellowing-resistant performances; and the color displaying density and color development speed are good.

Cathode piece includes long piece of single negative pole and short piece of single negative pole. Through connection basal body of negative pole, the method welds end of the long piece to the short piece so as to produce piece of dual negative poles. Small block of protective membrane with width being larger than width of the said connection basal body is welded to diaphragm corresponding to connection seam of piece of dual negative poles. Then, piece of dual negative poles, diaphragm, and positive pole are rolled into battery container. Hydrogen-nickel battery is assembled after injecting electrolyte, and installing seal ring of nut cap to the seal. The method could control and produce pole pieces with different thick nesses, and quantities of cathode active material. The method raises use ratio of cathode active material, reduces thickness of pole, and occupied volume, and raises efficiency for manufacturing battery.

The invention discloses a shell embossing device of electronic product production in the technical field of shell embossing. The device comprises a bottom supporting table. The top of the bottom supporting table is provided with a vertical plate. The rear end of the vertical plate is provided with a motor mounting plate. The top of the motor mounting plate is provided with a driving motor. The front end of the vertical plate is provided with a fixing block. A clamping rod is located in a shifting groove. The bottom of the left and right sides of an upper and lower swing rod is connected with pressing rods. The middles of the outer walls of the pressing rods are sleeved with pressing rod sleeves. The bottoms of the pressing rods are provided with pressing heads. Four sets of movable rods are movably inserted into the left side and the right side of the top front side of the bottom supporting table. The outer walls of the movable rods are covered with compression springs. Electronic product placement seats are arranged at the tops of the movable rods. Elastic clamping blocks are arranged on four sides of the top of the electronic product placement seats. According to the shell embossing device of electronic product production, shell embossing of left and right two groups of electronic products can be rapidly conducted according to the lever principle, and the embossing operationis quick and efficient.

The invention provides a well drilling high strength pressure-bearing plugging agent and an application thereof, the plugging agent including: 20-30 parts of PPS plastic granular material, 15-30 partsof a graphite type granular material, 35-45 parts of a granular filling material, and 3-10 parts of a fiber material, the mass parts of the components adding to 100 in total. The graphite type granular material is selected from one or more of natural graphite granules and expanded graphite granules, the size being 40-80 meshes under standard screening sieve. The granular filling material mainly includes CaCO3 or silicate. The pressure-bearing plugging agent has high strength in main material, and is not liable to break under the complex stress status in a well; by means of the graphite type granular material, the granular filling material and the fiber material, a stable and solid blocking layer can be formed; in addition, the pressure-bearing plugging agent is high in temperature resistance, so that failure due to deterioration of the materials at high temperature is avoided. The pressure-bearing plugging agent can satisfy the demand of improving pressure-bearing capability of a stratum in deep well drilling.

The invention relates to the technical field of the manufacturing of refrigerator lower beam, and particularly relates to a punching fixture for refrigerator lower beam. The fixture comprises a punching mechanism and a stamping mechanism located below the punching mechanism. The punching mechanism comprises a wedge block and a punching table facing the wedge surface of the wedge block. An elastic strip is placed on the wedge surface of the wedge block. Both sides of the punching table are provided with rectangular grooves, wherein ice blocks are placed in the rectangular grooves. A punching head matching the rectangular grooves is placed on the stamping mechanism. The ice blocks are used to support the L shape lower beam, and to transfer the residual strength on the punching head to prevent the breaking of the L shape lower beam during the stamping operation in the thin and narrow side edges. The elastic strip positioned on the wedge block can simultaneously clamp the L shape lower beam and exert a function of relieving pressure to the side board of the L shape lower beam, and prevent the side board of the L shape lower beam from breaking in the stamping process.

The invention relates to a solder wire soldering flux capable of reducing splashing and a preparation method thereof. The soldering flux is composed of the following components in percentage by weightof 1.0-10.0% of compound organic acid, 0.2-5.0% of compound activator, 0.1-1.0% of compound defoamer, 2.0-10.0% of compound solvent, 0.1-1.0% of antioxidant, 0.1-1.0% of corrosion inhibitor and the balance of compound rosin. The preparation method comprises the following steps of heating, stirring and melting the compound rosin, adding the compound organic acid and the low-melting-point indissolvable activator, adding the solution dissolved with the high-melting-point dissolvable activator, the antioxidant and the corrosion inhibitor, finally adding the compound defoamer, performing continuous stirring at the constant temperature of 145-165 DEG C, performing full dissolving, and performing uniform mixing, thereby obtaining the soldering flux. The soldering flux is high in activity, easy to tin during welding, low in corrosion, small in residue and high in insulation resistance, the splashing number and the splashing distance of the soldering flux and tin beads in the welding process of a lead-free tin wire can be greatly reduced, the RoHS instruction is met, and the reliability of electronic and electrical products after welding is guaranteed.

The invention discloses a CO2 displacement experimental system and experimental method. The system comprises a gas refrigeration system, a gas injection system, a liquid injection system and a core clamping system. The gas refrigeration system is composed of a gas cylinder filled with CO2, a purifier, a refrigeration water bath, a first CO2 pump and a storage tank, wherein the gas cylinder filledwith CO2, the purifier, the refrigeration water bath, the first CO2 pump and the storage tank are sequentially connected. The gas injection system is sequentially connected with a second CO2 pump anda buffer tank through the storage tank. The liquid injection system comprises two branches connected in parallel. The first branch comprises a first piston container. The second branch comprises a second piston container. The inlet of the liquid injection system is sequentially connected with a liquid injection pump and a first container. The outlet is connected with the buffer tank. The core clamping system comprises a core holder. The core holder is connected with the gas injection system and the liquid injection system. The device provided by the invention can simulate and test the displacement process of carbon dioxide or an aqueous solution to the reservoir core under different displacements, different temperatures, different pressures and different solution ratios, and calculates residual water saturation or residual CO2 saturation.

The invention relates to a bottle pushing machine for production of a glass bottle and provided with a pressure buffering device. The bottle pushing machine comprises a bottle pushing device, wherein the bottle pushing device comprises a groove plate for bottle pushing; the pressure buffering device is arranged on the bottle pushing device; the pressure buffering device comprises a corrugated suction disk, a spring suction disk, an airbag suction disk and a flexible ball push plate; the corrugated suction disk and the spring suction disk are arranged on the two sides of an upper bracket correspondingly; and the airbag suction disk and the flexible ball push plate are arranged on the two sides of a lower bracket correspondingly. The bottle pushing machine can achieve a pressure buffering effect, avoids damage to the glass bottle and improves the production efficiency and the product quality.

The invention provides an MEMS pressure sensor. The MEMS pressure sensor comprises a circuit board, a shell, an MEMS pressure sensor chip and an ASIC chip, wherein the shell and the circuit board are assembled to form containing space, and the MEMS pressure sensor chip and the ASIC chip are installed on the circuit board. An air hole is formed in the shell. The circuit board comprises an installing area where at least one chip is installed and a non-installing area surrounding the installing area. An annular groove surrounding the installing area is formed in the non-installing area. As the groove is formed in the periphery of the area, where the MEMS chip and / or the ASIC chip are / is installed, of a substrate, the function of buffering pressure is achieved, it is avoided that external stress directly acts on the MEMS pressure sensor chip and / or the ASIC chip, and influences of external force impacting on the measurement accuracy of the sensor are further reduced.

The invention discloses a CO2 pressurization metering system and a use method. The system comprises a liquid storage tank, a mixed liquid metering pump, a gas storage bottle, a refrigerator, a CO2 metering pump, a first piston container and a rock sample, wherein a water outlet of the liquid storage tank is connected with the upper part of the first piston container through the mixed liquid metering pump; the gas storage bottle is used for storing CO2 gas; a gas outlet of the gas storage bottle is connected with the lower part of the first piston container through the refrigerator and the CO2 metering pump sequentially; and a CO2 outlet in the lower part of the first piston container is connected with an inlet of the rock sample. The invention provides a stable experimental system with a CO2 anhydrous fracturing fluid injection function, and a use method.

The invention belongs to the technical field of coal purification application and particularly discloses a high-stability installation structure applied to a coal water slurry gasifier. The structureis composed of a bottom support assembly, a lifting adjustment assembly and an upper support assembly, which are matched with the coal water slurry gasifier. The structure has the following advantages: 1) problems existing in a fixing structure of a coal water slurry gasifier are solved, after assembly, the gasifier is free of sliding, and pipelines connected to the gasifier are sealed safely without leakage, so that operation safety of the gasifier is guaranteed; 2) after assembly, local pressure buffering operation is achieved, so that the operation safety of the gasifier is further guaranteed; 3) the structure allows adaptive lifting according to construction assembling demands, thus increasing assembling operation efficiency; 4) the structure achieves intelligent monitoring and management operation, thus guaranteeing the operation safety of the gasifier.

The invention provides a light cold-mixed resin steel bridge deck pavement material. The steel bridge deck pavement material consists of cold-mixed resin, mineral aggregate and fibers, wherein the mass ratio of the cold-mixed resin to the mineral aggregate is (11-20):100; the mineral aggregate comprises light high-strength coarse aggregate, fine aggregate and mineral powder; the mass percentage of the light high-strength coarse aggregate in the mineral aggregate is 20-45 percent; the fibers are chopped steel fibers, and the total mass is 0.5-2 percent of the mass of the steel bridge deck pavement material. The steel bridge deck pavement material is low in density and high in performance, and can play a role in reducing the constant load on a steel deck on the premise of keeping the thickness of a bridge deck pavement structure invariable; or the rigidity of a deck system is enhanced by increasing the thickness of a pavement layer under the condition of keeping the constant load on the deck invariable.

The invention provides a pressure vessel with a pollution discharge buffer device, and mainly relates to the field of pressure vessels. The pressure vessel with the pollution discharge buffer device comprises a vessel body, wherein the bottom of the vessel body is provided with a slag discharge pipe, the slag discharge pipe is provided with a first valve, the bottom of the slag discharge pipe is detachably and fixedly connected with a buffer tank, an adapting pipe is arranged in the center of the top of the buffer tank, a pressure relief pipe is arranged on one side of the top surface of the buffer tank, the pressure relief pipe is provided with a pressure relief valve, the bottom of the buffer tank is provided with a leading-out pipe, the leading-out pipe is provided with a second valve,the top in the buffer tank is provided with a guide pipe communicated with the adapting pipe, and one side of the bottom of the buffer tank is provided with a pressure bearing wall. The pressure vessel has the beneficial effects that the discharge of an accumulated liquid in the pressure vessel is converted into normal pressure from under pressure by means of intermittent discharge, the accumulated liquid is prevented from being splashed to the ground to result in pollution, and the personal safety of operators in the operation process is guaranteed.

The invention relates to opening hot-pressing equipment for an underpants elastic band. The equipment comprises a rack, a first air cylinder is fixed to the rack, a hot-pressing device used for hot pressing is fixed to the first air cylinder, an opening device used for opening an underpants elastic band and a first driving mechanism used for driving the opening device to move to open the underpants elastic band are arranged on the rack, a workbench is further fixed to the rack, when the underpants elastic band is unfolded by the unfolding device, the two sides of the underpants elastic band are arranged in the circumferential direction of the side face of the workbench in a winding mode, and the hot-pressing device is located above the workbench. The equipment has the advantages that: theunderpants elastic band and underpants can be better attached, and the underpants elastic band can bond the underpants in a more all-around mode.

The invention relates to a high-pressure-impact-prevention and antifreezing device of a transmitter diaphragm. The device comprises an antifreezing component and an impact prevention component. The antifreezing component and the impact prevention component are connected through a connection pipe and a joint. The impact prevention component comprises an impact prevention device shell, a guiding pressing pipeline, a guiding pressing casing pipe, a thrust conversion mechanism, a high and low pressure switching mechanism and a position detection mechanism, wherein the guiding pressing pipeline, the guiding pressing casing pipe, the thrust conversion mechanism, the high and low pressure switching mechanism and the position detection mechanism are arranged in the shell. The guiding pressing pipeline is arranged in the guiding pressing casing pipe. The upper portion of the thrust conversion mechanism is connected to the position detection mechanism, and a lower portion is connected to the high and low pressure switching mechanism. The structure of the device is simple and operation is convenient. The cut-off effect of a pipeline can be normally measured when there is high pressure and thesafety of the transmitter diaphragm is guaranteed.

The present invention relates to the field of display technology, in particular to a pressure detection paper and a preparation method thereof, comprising a paper layer and a pressure-sensitive color-developing layer adhered to the paper layer, wherein the pressure-sensitive color-developing layer is prepared from the following raw materials by weight : 15-30 parts of leuco dye microcapsules, 9-18 parts of spacer, 10-15 parts of adhesive, 15-30 parts of developer microcapsules, 1-3 parts of surfactant and 30-45 parts of solvent. The pressure detection paper has a flat surface and a smooth surface, and the pressure-sensitive color developing layer coated on the paper layer is not easy to drop powder, has stain resistance and yellowing resistance, and has good color development density and color development speed.

The invention discloses a hydrogen-nickel battery negative electrode sheet and a method for manufacturing a hydrogen-nickel battery using the same. The negative electrode sheet is a double negative electrode sheet, and the manufacturing method comprises welding a single negative electrode short sheet at the end of a single negative electrode long sheet through a negative electrode connection substrate. Double negative electrode sheet, first weld a small piece of protective film with a width larger than the width of the negative electrode connection substrate on the diaphragm corresponding to the connection seam of the double negative electrode sheet, and then place the diaphragm welded with the protective film between the positive and negative electrode sheets, and then place the The double negative plate, diaphragm, and positive plate are rolled into a cylindrical shape and loaded into the battery case, and finally the nickel-hydrogen battery is assembled by injecting electrolyte, installing a cap and sealing ring. It can effectively control and manufacture pole pieces with different thicknesses and different amounts of negative electrode active materials, improve the utilization rate of negative electrode active materials and the performance of the battery, correspondingly reduce the thickness of double negative electrode pieces and occupy the volume of the shell, and reduce the battery life. The manufacturing cost and assembly difficulty significantly improve the manufacturing efficiency of the battery, and are especially beneficial to the manufacture of high-capacity batteries.

The invention discloses an aerial survey meter for mountain-based vegetation zones and vertical vegetation zones. The aerial survey meter comprises a box body outer cover, wherein a window and a plurality of survey instrument surveying windows are formed in the box body outer cover, a mercury balancing cabin is connected to the lower bottom surface of the box body outer cover through a spring balancing cabin, two ends of the spring balancing cabin are connected with two ends of the mercury balancing cabin through a triangular support frame, and a plurality of aerodynamic cabins are arranged at the lower end of the mercury balancing cabin. According to the aerial survey meter, multiple surveying points which are difficulty to reach in a primary ground survey process are realized, so that the inconveniences in the ground surveys such as the surveys of distance of two points, the longitude, the latitude and the elevation in the past are solved; by utilizing the properties that mercury is of a liquid state under the normal temperature and has relatively high density, the balancing problem of carried objects is solved; meanwhile, by virtue of the design of a spring cabin, a pressure buffer action is realized, and the balancing of suspended objects in an aerial instrument is further guaranteed.

The invention provides a waist belt, and relates to the field of articles of daily use. The waist belt comprises an external covering belt body, an internal covering air cushion, an air input controlmechanism, an air output control mechanism and a locking mechanism. The inner side face of the external covering belt body and the surface of the internal covering air cushion are bonded, the materialof the internal covering air cushion comprises rubber, the internal covering air cushion is arranged in four circles, and the four circles of the internal covering air cushion are communicated. Whenthe waist belt is used and a user bows, air can move to extrude clothes to cover the exposed part of the waist belt, unattractiveness is avoided, and the comfort of the waist belt can be finely adjusted to adapt to the needs of different people. Operation is easy, the belt can be loosened through simple actions, it can be avoided that the situation of embarrassment happens instantly a belt buckleis damaged, and therefore the problems that a current waist belt cannot adhere to the body well when the human body bows, the waist belt is not attractive and causes discomfort to the human body, andthe waist belt cannot be flexibly adjusted, and can hardly adapt to the needs of more people for comfort are effectively solved.

The invention belongs to the technical field of pipelines, and provides a high-pressure-resistant and impermeable heat-preservation composite pipeline and a preparation method thereof. The heat-preservation composite pipeline comprises an inner-layer working layer, a middle-layer insulating layer and an outer-layer protective layer which are sequentially arranged from inside to outside, wherein the inner-layer working layer comprises an impermeable barrier layer, a polyethylene material layer, a modified reinforcing layer, a heat-sensitive micro-foaming adhesive layer and a prepreg tape winding layer which are sequentially arranged from inside to outside, wherein the polyethylene material layer is a PERT-II type high-density polyethylene material layer, the impermeable barrier layer is made of nylon MXD6 or ethylene / vinyl alcohol copolymers, the modified reinforcing layer is a glass fiber reinforced nylon MXD6 layer, the prepreg tape winding layer is a glass fiber reinforced polyethylene prepreg tape layer, and the modified reinforcing layer is composed of the following components of, in parts by weight, 35-50 parts of nylon MXD6, 15-50 parts of glass fiber, 0.2-1 part of a silanecoupling agent, 1-2 parts of an antioxidant, 0.5-1 part of a lubricant and 5-15 parts of a toughening agent. The heat-preservation composite pipeline and the preparation method solve the problem thatthe high-density polyethylene composite heat preservation pipeline is low in pressure resistance.

The invention discloses a control valve of an injector. The control valve comprises an ejector body, a control plunger, a valve sleeve, an orifice plate and a fastening valve seat. The orifice plate,the valve sleeve and the control plunger form a control cavity. The control valve of the injector also comprises a pressure relief floating column, and the pressure relief floating column is cylindrical and arranged on the upper end face of the control plunger. The end, close to the control plunger, of the pressure relief floating column is provided with a notch part penetrating through the circumferential surface, and an oil outlet hole is formed in the other end of the pressure relief floating column. The oil outlet hole communicates with the notch part to form a connection channel, the orifice plate is provided with a constraint hole matched with the pressure relief floating column, the constraint hole communicates with an orifice plate oil outlet hole of the orifice plate, and the pressure relief floating column can move up and down in the constraint hole. According to the control valve, the problem of cavitation damage of the high-pressure injector can be solved, the service lifeof the injector is prolonged, and the action response is accelerated.

The invention relates to a bottle pushing machine for production of a glass bottle and provided with a pressure buffering device. The bottle pushing machine comprises a bottle pushing device, wherein the bottle pushing device comprises a groove plate for bottle pushing; the pressure buffering device is arranged on the bottle pushing device; the pressure buffering device comprises a corrugated suction disk, a spring suction disk, an airbag suction disk and a flexible ball push plate; the corrugated suction disk and the spring suction disk are arranged on the two sides of an upper bracket correspondingly; and the airbag suction disk and the flexible ball push plate are arranged on the two sides of a lower bracket correspondingly. The bottle pushing machine can achieve a pressure buffering effect, avoids damage to the glass bottle and improves the production efficiency and the product quality.

The invention relates to a cylindrical lithium-manganese dioxide battery. The safe cylindrical lithium-manganese dioxide battery comprises a battery case and a safe structure winding core positioned in the battery case, wherein a positive plate is connected with the battery case by a lug, a negative plate is connected with a seal assembly by the lug, and both ends of the safe structure winding core are respectively provided with an upper insulating ring and a lower insulating ring which play the roles of isolation, insulation, supporting and shock absorption. A circular cover plate of the hotmelt electrolyte corrosion-resisting seal assembly is connected with the battery case by way of welding. The seal assembly comprises a T-shaped terminal post, sealed insulating plastics, the circularcover plate and a connecting ring. A self-starting blast-proof pressure relief device is designed on the top of the battery case and comprises a pressure release valve, a deformable groove, a positive terminal and an air chamber. The cylindrical lithium-manganese dioxide battery optimizes the dimension scales of the positive plate and the negative plate of the winding core, as well as the seam assembly, the sealing material quality and the pressure relief device on the battery case, thereby enhancing the safety of the battery, prolonging the storage life thereof and reducing the cost of production and materials simultaneously.