123results about How to "Reduce molding difficulty" patented technology

The embodiment of the utility model provides electronic equipment, and belongs to the technical field of electronics, a telescopic conductive part is arranged between a shell and a flexible screen of the electronic equipment, the two ends of the conductive part in the telescopic direction are electrically connected with the shell and the flexible screen, the conductive part is provided with a cavity, and the flexible screen can drive the conductive part to stretch out and draw back and compress or expand the cavity. Reliable assembly and electric connection between the flexible screen and the shell can be realized through the conductive part, and the conductive part does not have a reverse jacking force effect on the flexible screen, so that the problem of causing blackspots to the flexible screen is avoided under the condition of ensuring stable conduction of the flexible screen and the shell. In the scenes of touch operation and the like, when a conductive area, corresponding to the conductive part, on the flexible screen is traversed, the flexible screen drives the conductive part to contract and compress the cavity, for example, when the conductive part is compressed to the limit, the cavity can be completely compressed, the flexible screen and the conductive part are stacked on the rigid shell, the thickness is obviously reduced, and the service life of the flexible screen is prolonged. Obvious local protrusions, bumps and the like cannot be formed on the flexible screen, and it is guaranteed that the hand feeling does not change obviously.

The invention discloses an eyepiece imaging system, which comprises a lens barrel, a first lens group, a second lens group, a third lens group, a plurality of bearing elements and a light source, the first lens group comprises a first lens; the second lens group comprises a second lens; the third lens group comprises a third lens; the first lens, the second lens and the third lens are sequentially arranged from the outer side to the inner side along the optical axis. The plurality of bearing elements includes a first bearing element and a second bearing element. The effective focal length f2 of the second lens, the outer diameter D2m of the inner side face of the second bearing element and the inner diameter d2m of the inner side face of the second bearing element meet the following conditions: 1lt; f22 / (pi * (D2m < 2 >-d2m < 2 >)) lt; 3. By reasonably setting the effective focal length of the second lens and the inner and outer diameters of the second bearing element, the shape of the second lens is effectively controlled, and meanwhile, the bearing element is partially supported on the inner wall of the lens barrel, so that the straight position size is reasonably controlled, the lens assembly process difficulty is reduced, and the assembly process yield is improved.

The invention provides a reinforced composite skirt structure and a preparation method, and relates to the technical field of rocket engines, the reinforced composite skirt structure comprises a skirt body, the skirt body is composed of a skirt flange and a skirt side wall, and the skirt side wall is integrally connected to the outer edge of the skirt flange and extends towards the back face of the skirt flange; the plurality of reinforced blocks are arranged on the back surface of the skirt flange; skirt through holes are formed in the skirt flanges and the reinforced blocks in a penetrating mode, and threaded sleeves are fixedly arranged in the skirt through holes. The skirt body and the reinforced blocks are made of carbon fiber composite materials. Compared with a skirt structure of a traditional rocket engine combustion chamber shell, the skirt structure has the advantages that a metal corner box in the prior art is replaced with the stiffened blocks and the threaded sleeves, the skirt body, the stiffened blocks and the threaded sleeves are integrally made of the carbon fiber composite materials and are fixed through glue joint, the procedure of threaded connection is omitted, and the forming difficulty is greatly reduced. The stiffened blocks can ensure the structural strength and rigidity of the skirt body structure, and the weight of a formed product can be reduced by 15% compared with that of a traditional skirt body.

The utility model relates to a high-strength mounting beam for a battery pack frame, which comprises a first section body and a second section body which are vertically arranged, the first section body is bent towards the direction close to the second section body to form a third section body, and the third section body and the second section body are positioned on the same side of the first section body. A reinforcing rib I parallel to the second section body is bent on the third section body towards the direction close to the first section body; the end, away from the first section body, of the second section body is perpendicularly bent to form a fourth section body, the fourth section body and the first section body are located on the same side of the second section body, and the fourth section body is bent in the direction close to the first section body to form a fifth section body parallel to the second section body. And a reinforcing rib II parallel to the first section body is bent on the fifth section body towards the direction close to the second section body. The mounting beam has the effect of improving the structural strength and rigidity of the mounting beam.

The invention relates to the technical field of composite materials, and particularly discloses a polyimide-based composite material and a preparation method thereof. The polyimide-based composite material is prepared from the following raw materials in parts by weight: 5 to 30 parts of aromatic dianhydride monomer, 4 to 38 parts of aromatic diamine monomer, 1 to 10 parts of end-capping reagent, 5 to 30 parts of acetic anhydride, 3 to 15 parts of triethylamine and 35 to 60 parts of solvent. The preparation method comprises the following steps: carrying out low-temperature reaction on an aromatic diamine monomer and an aromatic dianhydride monomer in a solvent to form a polyamide acid solution, and carrying out chemical cyclization treatment to obtain fusible polyimide; the polyimide resin prepared by the invention is easy to melt and good in fluidity, solves the problems of higher melting point, difficulty in melting and poor fluidity of a polyimide-based composite material in the prior art, and reduces the forming difficulty of the composite material.

The invention provides a filter screen and a bouncing drainer. The bouncing drainer comprises a filter screen main body, a filter screen base and a lifting piece, the filter screen body is tubular and comprises a water inlet end and a water outlet end. The filter screen base is installed through the water inlet end of the filter screen body, and an easily-disassembled structure is arranged between the filter screen base and the inner wall of the water outlet end. And one end of the lifting piece is assembled with the filter screen base. According to the filter screen provided by the invention, when the filter screen is cleaned, the lifting piece is used as a handle, the filter screen base is detached from the filter screen main body through the easy-to-detach structure, and garbage accumulated in the filter screen can be taken out while the filter screen base is taken out, so that the garbage in the filter screen can be easily cleaned even if the filter screen is relatively deep and small in caliber, and in addition, the filter screen is convenient to clean. The filter screen main body and the filter screen base which are detached are also easy to independently clean, so that the filter screen provided by the invention provides great convenience for cleaning.

The invention relates to the field of conducting bars, in particular to a charging pile conducting bar and a production process, the charging pile conducting bar comprises a conductive cell, the conductive cell is internally provided with a plurality of cell liquid cooling holes, the plurality of cell liquid cooling holes are distributed along the width direction of the conductive cell, and the plurality of cell liquid cooling holes are arranged along the length direction of the conductive cell in a penetrating manner. On the premise that the occupied space of the conducting bar is reduced, the heat dissipation effect of the conducting bar is ensured.

The invention provides a copper-based adsorbent and application thereof in a glove box purification column, and belongs to the technical field of catalysts containing metals or metal oxides. The method comprises the following steps: adding active metal salt into a solvent, mixing and dissolving to obtain a mixed metal salt solution, mixing and dissolving a precipitant and the solvent to obtain a precipitant solution, co-precipitating the mixed metal salt solution and the precipitant solution, and separating, drying and calcining the obtained precipitate to obtain the supported copper-based adsorbent with the size phi of 1.8-6 mm. The copper-based adsorbent provided by the invention has good oxygen removal performance and regeneration capacity, can be continuously produced and is short in reaction time.

The present invention relates to a polycarbonate modified material for 3D printing with low printing temperature, a preparation method thereof and a printing filament. The polycarbonate modified material comprises 65 to 80 parts of polycarbonate, 20 to 35 parts of aliphatic aromatic copolyester and 1 to 5 parts of vinyl acetate copolymer, and a polycarbonate blended modified material is obtained by twin-screw melt extrusion, and then a filament that can be used for 3D printing is prepared by a single-screw extrusion wire drawing device. The print head temperature of the polycarbonate modified material can be reduced to 220°C, the base plate temperature can be reduced to 80°C, and the warping curvature can be controlled within 1.0m ‑1 Below, normal printing is not affected.

The present invention relates to the field of optical imaging technology, and specifically discloses an optical imaging lens, a camera module and an electronic device. The optical imaging lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens arranged in sequence from the object side to the image side, wherein the optical imaging lens satisfies the conditional formula: 1<f3456 / f<4, f3456 is the combined focal length of the third lens, the fourth lens, the fifth lens and the sixth lens, and f is the effective focal length of the optical imaging lens. The optical imaging lens of the present invention is conducive to correcting aberrations such as chromatic aberration and field curvature of the optical imaging lens by setting six lenses with refractive power, can slow down the light deflection angle, reduce the design and assembly sensitivity of each lens, and can meet the needs of miniaturization, lightweight and high-definition imaging quality of the optical imaging lens.

The utility model provides a double-control faucet. The double-control faucet comprises a water outlet main body and a water outlet pipe fitting, the water outlet body is provided with a mounting cavity, a cold water channel and a hot water channel, and a mixed water channel is formed in one end of a mounting opening of the mounting cavity. And a mixing valve core is mounted in the mounting cavity. The water outlet pipe fitting is mounted at the mounting opening of the mounting cavity, and the water inlet end of the water outlet pipe fitting is coaxial and communicated with the mounting cavity. A temperature control assembly in linkage with the mixing valve element is arranged in the water inlet end of the water outlet pipe fitting, the temperature control assembly is provided with a temperature adjusting handle extending out of the periphery of the water outlet pipe fitting, and a flow control assembly is further arranged on the water outlet pipe fitting and located on the downstream of the temperature control assembly, so that a structure that the temperature control assembly and the flow control assembly are arranged in a staggered mode is formed. Therefore, the situation that the two switches are arranged together to cause large installation position size and congestion is avoided, the influence on the appearance modeling design of the faucet is reduced, and the appearance of the faucet has a larger design space.

The invention discloses a high-efficiency mist-discharging high-capacity atomizing tank which comprises a tank body and a tank cover, the tank cover is detachably arranged at the upper end of the tank body, a mist outlet is formed in the middle of the tank cover, an atomizing core mounting cavity is formed in the lower portion of the mist outlet, an atomizing core is mounted in the atomizing core mounting cavity, and the atomizing core is mounted in the atomizing core mounting cavity. The atomizing core mounting cavity is communicated with the outside through a compressed air inlet, one side of the top of the tank cover is provided with an air supply port penetrating through the top and the bottom, the lower side of the atomizing core is in butt joint with a liquid suction pipe vertically extending to the bottom of the tank body, and a liquid suction channel is formed in the liquid suction pipe; the upper end of the liquid suction channel is communicated with a nozzle at the lower end of the atomizing core, a surrounding part surrounding the atomizing core is arranged in the middle of the lower end of the tank cover, a mist gathering cavity is defined by the surrounding part, and the mist gathering cavity is communicated with the mist outlet through a communication groove. The problems that an existing atomization tank is small in compressed gas flow rate application range and low in atomization efficiency can be solved.

The utility model relates to the technical field of lithium batteries, in particular to a center needle and a lithium battery, the center needle comprises a rod body and a flange plate body, one end of the rod body close to a cap body of the lithium battery forms a first end, and the port part of the first end of the rod body is turned outwards along the radial direction to form an assembly edge. The flange plate body is assembled at the first end of the rod body, the inner diameter position of the flange plate body is folded towards the second end of the rod body to form a clamping ring, the clamping ring comprises a plurality of clamping teeth distributed at intervals, and during assembling, the flange plate body moves to the first end from the second end of the rod body until the clamping ring is tightly attached to the assembling edge, and then the clamping teeth are clamped to the first end of the rod body. The clamping teeth of the clamping ring are engaged with the outer wall of the rod body to form interference fit. The technical problem that in the prior art, a center pin which is thin in size, high in height and provided with a flange plane is not easy to produce is solved.

The utility model relates to the field of passenger cars, in particular to a passenger car rear roof decoration frame which comprises a rear frame, an integrated interior decoration plate and an air duct partition plate assembly, the integrated interior decoration plate is fixed on the inner side of the rear frame and comprises a seat portion, a vertical portion and a horizontal portion, the vertical portion is vertically arranged and connected to the upper portion of the seat portion, the horizontal portion is horizontally arranged, and the air duct partition plate assembly is arranged on the vertical portion. The vertical part is connected to the upper part of the vertical part; the seat part, the vertical part and the horizontal part are fixedly connected with the rear frame; the air channel partition plate assembly is fixed to the two sides of the top in the rear frame, one end of the air channel partition plate assembly abuts against the horizontal part, the air channel partition plate assembly, the horizontal part and the rear frame define an air channel, and a first air outlet and a second air outlet are formed in the air channel partition plate assembly and the horizontal part correspondingly. The seat part, the vertical part and the horizontal part of the integrated interior trim panel are integrally formed, so that the assembly efficiency is effectively improved, the problem that the matching difficulty of parts is high due to the fact that the parts are too many is solved, and meanwhile the overall attractiveness is effectively improved.

The utility model provides a battery device, a power utilization device and a circuit board, and belongs to the technical field of batteries. The battery device comprises a box body, a plurality of battery monomer components, a battery management system and a sampling assembly, the plurality of battery monomer assemblies are arranged along a first direction and are accommodated in the box body; each battery monomer assembly comprises a plurality of battery monomers which are stacked along a second direction; the battery management system includes a control member disposed on one side of the battery cell assembly in the second direction. The sampling assembly comprises a circuit board and a sampling piece, the circuit board comprises a main body area, a connecting area and a plugging area, the main body area extends in the second direction and is arranged on one side of the battery monomer assembly in the third direction, the connecting area is connected with the main body area and the plugging area, the connecting area extends in the first direction, and the plugging area is in plugging fit with the control piece; the sampling piece is electrically connected with the main body area. According to the battery device with the structure, the layout of the circuit board can be optimized, so that the internal space utilization rate of the battery device is improved.

The invention provides a three-way water outlet nozzle of a faucet. The three-way water outlet nozzle comprises a three-way body and a switching assembly. The tee joint body comprises a water inlet butt joint end, a faucet water outlet end and an external water outlet end, and a mounting cavity is formed in the tee joint body. The switching assembly is installed in the installation cavity of the tee joint body, the water inlet butt joint end is communicated with the faucet water outlet end or the external water outlet end through the switching action of the switching assembly, and therefore water can be discharged from a faucet provided with the water outlet nozzle or discharged from a water outlet device, such as a shower head or a spray gun, connected with the external water outlet end. According to the three-way water outlet nozzle of the faucet, the switching function can be achieved at the water outlet end of the faucet, the original water outlet function of the faucet is reserved, the function of externally connecting a water outlet device is added, for example, the faucet can be connected with a shower head or a spray gun, and the faucet can be changed into a water outlet controller of the externally connecting water outlet device through switching; the problem that a shower head or a spray gun cannot be arranged after a faucet is arranged is solved, and rich water use choices are provided for a user.

The utility model provides a faucet plastic waterway structure which comprises a main body, a valve core seat, a water inlet core body and a fixing piece. The main body is provided with an installation cavity and a water inlet insertion channel, and the valve element seat is installed in the installation cavity and provided with an insertion opening. And the water inlet core body is arranged in the main body through the water inlet insertion channel and is provided with an insertion head inserted into the insertion port of the valve core seat. The fixing piece is installed in the installation cavity through an installation opening in the end of the installation cavity, a locking mechanism is arranged between the fixing piece and the water inlet core body, and the fixing piece limits the inserting-connecting head of the water inlet core body to retreat from the inserting-connecting opening of the valve element base through the locking mechanism. According to the faucet plastic waterway structure provided by the utility model, the valve core seat and the water inlet core body can be assembled together in the main body in an inserting manner, and are fixedly and integrally assembled through the fixing piece, so that the integral forming manner of a traditional faucet waterway component can be replaced, the forming difficulty is greatly reduced, and meanwhile, the cost is reduced. Related parts of the waterway can also adopt plastic parts, so that the cost is reduced.

The invention discloses an eyepiece imaging system, which comprises a lens barrel, a first lens group, a second lens group, a third lens group, a plurality of bearing elements and a light source, the first lens group comprises a first lens; the second lens group comprises a second lens; the third lens group comprises a third lens; the first lens, the second lens and the third lens are sequentially arranged from the outer side to the inner side along the optical axis. The plurality of bearing elements includes a first bearing element and a second bearing element. Wherein the back focus FL of the eyepiece imaging system and the inner diameter d0m of the inner side surface of the lens barrel meet the following conditions: 8.5 lt; d0 m / FLlt; 9.5. By controlling the back focus of the optical imaging system, the field angle of the system is effectively restrained, so that the system meets the characteristic of large field of view of the eyepiece.

The application provides an elastic locking limiting piece, a push-out type air deflector limiting structure and an air conditioner. The elastic locking limiting piece comprises a base, an axial limiting part, an elastic arm and a buckle part. The elastic arm extends from the base along an axial direction, and the buckle part protrudes from the elastic arm. An end of the buckle part has a first guide surface. The buckle part is closer to a plug-in front end of the elastic locking limiting piece than the axial limiting part, and the first guide surface faces away from the plug-in front end. The push-out type air deflector limiting structure comprises the elastic locking limiting piece, and the air conditioner comprises the push-out type air deflector limiting structure. The elastic locking limiting piece is inserted into a rotating shaft insertion hole of a push-out rack to limit a hook. When the hook and the rotating shaft are about to be disengaged, the hook pushes the axial limiting part from the axial direction, and at this time, the first guide surface abuts against a buckle surface of the rotating shaft to force the elastic arm to fold and deform, so that the elastic locking limiting piece is pushed out of the rotating shaft, and the hook can be disengaged from the rotating shaft from the axial direction, thereby avoiding damage to the hook and the rotating shaft.

The utility model provides a side water outlet valve core and a faucet, the side water outlet valve core is provided with a water outlet channel, the water outlet channel forms a water outlet insertion port on the peripheral surface of the valve core, and the water outlet insertion port is parallel to the axial direction of the valve core and penetrates through the end part of the valve core. According to the side water outlet valve element provided by the utility model, the water outlet channel extends to the peripheral surface of the valve element and forms the water outlet insertion port which simultaneously penetrates through the peripheral surface and the end surface, when the valve element with the structure is installed, the water inlet end of the water inlet pipe butted with the valve element must be provided with or form an L-shaped insertion head, and an insertion mode parallel to the axial direction of the valve element is adopted; after the valve element is assembled, the end of the valve element is basically pressed, meanwhile, the water inlet end of the water inlet pipe is also pressed, in the water outlet state, the water outlet pipe cannot fall off due to water flushing, and the installation firmness of the water outlet pipe is greatly improved.

The invention belongs to the technical field of water-swellable rubber for petroleum casings, and particularly relates to water-swellable rubber for petroleum casings as well as a preparation method and application of the water-swellable rubber. According to the rubber capable of rapidly expanding when meeting water for the petroleum casing pipe, the nitrile rubber with the acrylonitrile content is adopted, the salt-resistant water-absorbent resin is introduced, the water absorption capacity of the rubber in a saline medium is improved, the coupling agent is introduced, dispersion of the water-absorbent resin in the rubber is improved, and incremental filling of the water-absorbent resin is achieved; the water touching time of the rubber inner layer is shortened through the foaming structure. The rubber obtained by the method solves the problem that the existing rubber is slow in water swelling, so that the water swelling rubber is effectively applied to the petroleum casing pipe.

The utility model discloses a data and electricity simultaneous transmission centralized controller with flexible installation, which comprises a control box, the control box is provided with a box body and a cover body covering the box body, the box body is internally provided with a memory, a processor and a traffic light control program stored on the memory and capable of running on the processor, the cover body is provided with a voltage stabilizer, the box body is provided with a flexible part, and the flexible part is provided with a power supply. The cover body covers the box body so that the voltage stabilizer can abut against the flexible piece. The memory and the processor are integrated in the same control box, assembly and maintenance by workers are facilitated, the memory and the processor are arranged in the box body, the voltage stabilizer is arranged on the cover body, and the memory, the processor and the voltage stabilizer are integrated in the control box; the voltage stabilizer located on the cover body abuts against the flexible part when the cover body is buckled into the box body, so that collision damage between the voltage stabilizer and the memory or the processor is avoided, and flexible installation protection is achieved for the voltage stabilizer, the processor and the memory.

The invention provides a cutting tool bit assembly which comprises a static cutter, a cutting tool bit, a cutting tool bit and a cutting tool bit. The movable cutter can move relative to the static cutter, the movable cutter is provided with two movable blades, the two movable blades are connected into a whole, movable cutter tooth parts are arranged at the same ends of the two movable blades, movable cutter teeth are formed by the movable cutter tooth parts, and the two movable cutter tooth parts jointly form a movable cutter shearing part matched with the static cutter shearing part; the supporting limiting piece is installed on the static cutter or the movable cutter and can enable the static cutter shearing part and the movable cutter shearing part to be limited in a gap in the direction perpendicular to the moving direction of the movable cutter. According to the hair trimming equipment, the forming difficulty of the moving cutter is low, elastic limiting is formed between the moving cutter and the static cutter, and size control is more convenient during specific implementation; bending deformation generated after the blade is used for a long time is effectively avoided, the structural stability is high, and the efficiency of hair cutting operation is guaranteed. And the temperature rise of the blade after long-time use is greatly reduced, and the noise is low.

The utility model relates to a water scoop for an aircraft brake test platform, and relates to the field of aircraft test devices.The water scoop for the aircraft brake test platform comprises a scoop body (1), the scoop body (1) is made of a composite material, reinforcing ribs (2) are arranged on the outer side of the scoop body (1), and the outer sides of the reinforcing ribs (2) are coated with FRP material layers (3); and the FRP material layer (3) covers the reinforcing ribs (2) and the adjacent scoop body (1), so that the forming difficulty of the water scoop can be reduced, and the service life of the water scoop can be prolonged.

The utility model relates to the technical field of locks, in particular to a handle convenient to disassemble and assemble, which comprises a panel, a connecting sleeve and a handle rod, the end, connected with the panel, of the handle rod is sleeved with the connecting sleeve. A threaded hole is formed in the handle rod; a bolt penetrates through the panel and the connecting sleeve and then is in threaded connection with the threaded hole; and a decorative sleeve is sleeved outside the handle rod. When the handle is used, the handle rod is of a rod structure easy to machine, the forming difficulty of the handle rod is lowered, the connecting position of the handle rod and the panel is decorated through the connecting sleeve, and the exposed position of the handle rod is decorated through the decoration sleeve with the light weight; the weight of the whole handle structure can be smaller.

The application relates to the technical field of batteries, and discloses a battery cell and a battery pack. The battery cell comprises a shell with an open end, the open end of the shell forms a first end face, a cover plate assembly comprises a cover plate body, the cover plate body comprises a body part and a boss, the boss is connected to one side of the body part in the Z direction, the body part is lapped on the first end face, the boss extends into the inner cavity of the shell, and the boss is arranged in a spaced mode with the shell; a guide ring is sleeved on the boss and clamped between the boss and the shell, and the height of the guide ring in the Z direction is greater than the thickness of the boss in the Z direction. By sleeving the guide ring on the outer circumferential side of the boss, the area where the guide ring is in contact with the inner wall of the shell forms a support area, the setting of the guide ring increases the support height of the inner wall of the shell, improves the support stability, reduces the strain of the heat affected zone without increasing the thickness of the cover plate body, avoids the abnormal problem that the welding heat affected zone of the shell is prone to cracking under the action of a large fatigue stress, and improves the safety of the battery cell.

The present application relates to the technical field of thin-walled part forging, and particularly provides a thin-walled part bending forging process, which comprises the following steps: heating a bar to a preset temperature to obtain a blank; forging the blank into a flat blank; forging the flat blank into a bowl-shaped structure in a first die to obtain a thin-walled bowl-shaped part; bending the thin-walled bowl-shaped part to form a thin-walled rough part; and forging the thin-walled rough part in a second die to obtain a target thin-walled part. The thin-walled part bending forging process can make the flat blank extend in the opposite direction of the movement direction of the movable die of the first die during the forging process, so that the flat blank is more likely to fill the first die, which is beneficial to improving the integrity and uniformity of the forged part, effectively reducing the forming difficulty of the vertical thin-walled part, and reducing the lateral pressure and Y-direction pressure borne by the die, so that stress concentration is not easily formed, and the service life of the die is significantly improved.

The utility model provides a water outlet controller which comprises a water outlet main body and a metal framework, the water outlet main body wraps the metal framework in an injection molding mode and is tightly attached to the metal framework, and therefore the strength of the water outlet main body can be improved through the strength of the metal framework, especially some weak positions, in addition, the water outlet main body is provided with a water passing channel, and the water passing channel is communicated with the water outlet main body. The metal framework and the water passing channel are staggered, so that the problem of forming defects of the water passing channel can be reduced, the requirement on an injection molding process is further reduced, the product percent of pass is improved, and meanwhile, the problem of poor sealing performance of the product is also avoided.

The present invention provides a low-temperature storage and transportation container, including an outer tank, a plurality of inner liners and a support assembly. The outer tank includes a cylinder and two heads respectively located at both ends of the cylinder; a plurality of inner liners are arranged side by side and spaced apart in the outer tank; each inner liners extends between the two heads, and each inner liners has a space between the cylinder; the support assembly is supported between the plurality of inner liners and the outer tank. Through the above arrangement, a plurality of inner liners are adapted to an outer tank, the diameter of the inner liners is reduced, and the wall thickness of the inner liners is effectively reduced when the design pressure bearing capacity of the inner liners is the same, thereby reducing the difficulty of making the inner liners materials, the difficulty of molding the inner liners and the difficulty of detecting the inner liners after molding, and finally reducing the difficulty of manufacturing the inner liners. Moreover, the pressure of the plurality of inner liners can be set according to actual needs, and different media can be stored and transported to meet various needs.