JP2013018543A - Collapsible liquid container and liner attaching/detaching device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container that enables a large amount of liquid excluding combustible or hazardous material to be transported on a rail road vehicle or a medium-duty truck, instead of a tank truck, thereby reducing transportation cost and eliminating return unloaded, while enabling a large amount of fresh milk to be transported using a refrigerator truck.SOLUTION: A collapsible liquid container 1 includes a rigid vertical container body 2 made of steel or the like. The container body 2 includes: a barrel part with a lid and a bottom plate disposed at the top and bottom thereof; a plurality of horizontally cross-sectional different-diameter stepped cylindrical bodies 2; bridge mechanisms provided in the upper outside periphery and the lower inside periphery of the facing barrel parts to be locked to a vertical slide; and joining lugs 22 formed in the circumferential end portions of the divided barrel parts, to be multiply joined to adjacent barrel parts. The upper and lower different-diameter barrel parts are combined to form the container body 2. A flexible seal membrane 9 is arranged inside the barrel part 2 and separation prevention means are arranged in the middle of the barrel parts circumferentially and are attached to the container body 2. Polyliner (R)compliant with Ministerial Ordinance on Milk and Milk products Concerning Compositional Standards etc. is attachable to and detachable from the container. The container can vertically expands and contracts and follows a liquid level of reduced volume. The container can be also used as a Polyliner (R) attaching/detaching device.

Description

  Mainly relates to volume-reduction containers for transporting large quantities of liquids, excluding dangerous and deleterious substances.

  In conventional mass transportation of food and industrial liquids, transportation is carried out by special vehicles such as tank trucks, and transportation costs are expensive. And there was a problem in global warming prevention measures. In particular, there was no liquid mass transport container that can be fitted with a polyethylene film conforming to the Ministerial Ordinance such as milk when transporting raw milk.

  The present invention has been devised by paying attention to the above-mentioned problems, and does not use special special vehicles for mass transportation of liquids excluding flammables and dangerous goods, and mainly includes standard railway cars or cold cars. The purpose is to provide a medium- or large-sized container that can be mounted on a vehicle or the like and can be reduced in space and space, to improve the economics and efficiency of physical distribution, and to contribute to global warming prevention measures. In particular, an object is to provide a liquid mass transport container that can be fitted with a one-way polyliner that complies with the ministry ordinance.

Means for Solving the Problems and Invention

In order to achieve the above object, according to the present invention, a container for a liquid that can be mounted on or removed from combustible materials, railway freight cars or standard trucks other than deleterious substances is rounded or substantially square. A rigid outer container such as a vertical steel plate or a rigid plate, and a cylindrical body of different diameters are provided with a step and divided into a plurality of circularly cut pieces in the horizontal direction, which are sequentially fitted in the vertical direction. Superimpose and attach a lid to the upper part of the outer cylinder of the fitted cylindrical body via a flange member to join the lid, and attach a tray with a valve to the bottom of the innermost cylinder via a flange. And an intermediate cylindrical body body is arranged in the middle, and these cylinders that are fitted and face each other slide in the inner circumferential direction of the lower part and in the upper outer direction. All meshing bridge mechanisms, for example, the barrel tube is on the outside and the bottom is on the inside A container that can be bent into a circumferential shape, or provided in a circumferential shape with a predetermined rib structure to be able to be locked with a slide, and further, a polymer-impregnated or laminated sheet inside the container, or a polymer alone A flexible sealing film is provided in a cylindrical shape with different diameter flanges corresponding to the upper and lower diameters of the container and the length of the container in an extended state. Narrowly contacting the inner trunk lower flange, sealing the gaps between the fitting sections between the trunk sections, and extending and contracting, and using, for example, a wire rope in the outer circumferential direction of the intermediate position in the height direction of the seal film The wetted liner is mainly made of a resin-made film inside, and is formed so that it can be fitted to the stepped portion of the cylindrical body through the sealing film body so that it can be prevented from being released and the main body can be reduced in volume. The present invention is arranged to be removable. Forming a seal film built multistage sliding container, thereby enabling the transport of an elastic body status of all level full each different 径胴 portion and the upper lid is lowered compaction in accordance with the input amount of the internal liquid. Therefore, the container body is formed in a rigid manner in this way, and it is an epoch-making container that can be mounted with a polyliner that does not contain, for example, milk ordinance-compliant additives. In addition, to prevent shaking during transportation, it is possible to fix the container during transportation by placing a bracing between the upper and lower flanges and a lashing belt, etc. It is also possible to improve the workability by maintaining the height of the torso in the middle waist. In addition, in order to make it easy to put on and take off the liner inside, it is also possible to provide a space that swells in a reverse concave shape on the opening and closing lid and arrange a turn roller for reciprocating passage to take up the means of loose winding at the time of mounting and discharging I can do it. Of course, a manhole can be provided in the upper lid. You can also stack containers when shrinking. And this container can also be used in a stationary manner.

The multi-stage sliding container with a built-in sealing film constructed as described above is suitable for a medium container of, for example, 2,000 liters to 5,000 liters while maintaining rigidity and performance as a container, and can be held sideways. It is very useful to make the installation easier and to supplement the intermediate volume logistics that was previously missing. In addition, in this container, the gap between the cylindrical body barrels is completely sealed by the inner sealing film, and when the contents are started to be discharged and the container is reduced, the middle abdomen of the sealing film is the stepped part of the outer trunk. Since the seal film is folded in a state of being almost fixed along the trunk, and the seal film is folded along the trunk, it is temporarily fixed with scissors, so that the internal liquid can be removed without being swallowed or sucked. It can be discharged and transported.
Therefore, this container formed in this way eliminates the empty cargo operation on the return route by installing a large-volume liquid transportation means that has been relied on a tank truck in the past, and this container is mounted on a rail car or a normal truck. Expected to contribute greatly to resource conservation and environmental issues, and enable simultaneous transport of different liquids or small-lot delivery, and when folded down, store it on the car in a compact form by folding it downward. It makes it possible to collect general cargo on the return route and improve the efficiency and economy of the entire logistics system. In addition, as described above, it can be transported in a cold car and can be kept in high quality, and furthermore, this container can be transported sideways by a forklift, so that the container can be filled with ground and loaded as it is. It is possible to lower the cargo handling time of a conventional lorry vehicle by enabling the unloading. Moreover, it is suitable as a container for emergency replenishment of drinking water in case of emergency for disaster prevention. Furthermore, it can be provided in the shape of a pressure vessel and can be supplied to a high place or a remote place. In addition, this multi-sliding container with a built-in seal film can be used for various purposes by using a corrosion-resistant liner on the inner surface, and at the same time, the material of the seal film itself can be freely selected and mounted on the entire surface of the container. It can be used very widely as a container for corrosion protection. In the case of a box-type truck, the container can be placed horizontally by placing one rear part on the pallet of the loading platform from the rear and providing a door similar to the rear door on the box-type side. Or, it can be connected and discharged on the vehicle.

  Further, the present invention relates to a rigid outer container manufacturing method for the upper and lower multistage expansion / contraction containers for liquid as described in claim 2, wherein the planar shape is round or almost square using aluminum steel or reinforced resin. In order to form a plurality of barrels with a bridge mechanism around the upper and lower ends of each step and moldable so that they can be assembled to each other, If the block with an end bridge mechanism is divided into a plurality of equal parts and the planar shape is a round container, it is provided in a plurality of equally divided parts and has a step in the vertical direction on one of the left and right sides of each block. Provided with ears and externally joined to adjacent blocks so that both inner surfaces can be flush with each other, and both lower bridge ends of the external tube tube that fits on this ear part are partially cut away so that they can be slid vertically Can be configured. In addition, the ear | edge part joining can also be provided in a rivet type or an adhesion type. Also, in a nearly square multistage container consisting of a straight part with four sides of a predetermined length and a corner part provided with four rounded corners, the straight part body is molded into a mold extrusion type long, and each For each corner section with different diameters, the left and right end backs are vertically molded with ears that are stepped vertically, and are molded as a single unit, and are joined together with adjacent long molded products so that both inner surfaces can be assembled. I can do it.

  The upper and lower multi-stage expansion / contraction liquid container formed in this way is usually used to produce a body portion provided with a suspension mechanism having a plurality of stages with different diameters.For example, an aluminum steel plate is bent into a key shape having an upper and lower circumference, or Although a bridge mechanism was provided by arranging ribs around the periphery and formed so as to be slidable up and down, both of them were difficult to process, and the processing accuracy did not remain. However, the accuracy of the bridge mechanism can be ensured and the number of processing steps can be greatly reduced by providing a die-molded member as in the present invention in a structure that can be joined by rivet processing other than heat welding, or by bonding. I can do it.

  Further, the present invention, as claimed in claim 3, in order to facilitate the attachment and detachment of the liner attached to the inner surface of the multi-slide container with a built-in seal film, and to take a means for preventing the lower part of the liner from being sucked when the internal liquid is discharged. It is desirable that this apparatus is mainly configured in combination with a gap-passing turn roller disposed on the upper lid of the container, and the gusset-shaped envelope having a predetermined width is mainly used when the resin film liner is manufactured by injection or the like. Stands provided at both ends in the width direction in the vicinity of the opening of the upper lid of the container before the liquid is charged Set the nozzle at the tip of the liner through the gap of the turn roller installed in the reverse concave space on the back of the opening / closing lid, and attach it to the nozzle of the container, and It can be wearing the lube introducing the liquid from the bottom. In this way, the filling liquid can fill a predetermined amount without touching the air while gradually pulling out the liner wound around the upper winding core while stretching the liner from the bottom to the corner. After filling a predetermined amount of liquid in this way, loosen the braces for container expansion and fixing, squeeze the liner with the turn pocket, bundle the extra scale and store it on the back of the lid, and lower the lid downward The liquid can be made elastic and transported by caulking and tightening with a lashing belt or the like. During transport, the stand with the empty core placed on the lid is temporarily stored, and after arrival at the destination, the container is lifted upward, the opening / closing lid is opened, and the liner pulled out from the turn pocket is used. The tip is set again on the winding core and the handle is turned to take up the excess liner slack that occurs when the liquid is discharged to prevent suction into the discharge port and at the same time easily collect the used liner. doing.

  The liner mounting / removal device for a multistage expansion / contraction container of the present invention formed in this way is simply inflated with air at the time of initial mounting or once the nozzle is set to mount the liner, which is difficult due to human dive. Thus, the filling liquid naturally pulls out the liner and swells and can be installed without wrinkles, and suction can be prevented by successively winding up the slack of the liner that occurs during discharge. In addition, the used liner can also be recovered by winding it with a winding core by operating the handle of the apparatus simply by removing the liner nozzle from the container nozzle so that the liquid does not drip. Also, the liner removal work can be done after returning. At the same time, it is possible to replace the liner at the destination and mount the different liquid.

Effect of the invention

The following effects can be expected from the liquid-type expansion / contraction container and liner mounting / demounting device of the present invention.
B) It is possible to transport a large amount of liquid using rail freight cars or standard trucks without using special vehicles, and it is possible to significantly reduce transportation costs by making effective use of return flights.
B) Since the rigid outer container can be expanded and contracted in the vertical direction, the empty container can be held horizontally and mounted on a truck with a forklift and stacked.
C) The volume of the container can be changed according to the filling amount of the internal liquid, and it can be transported without waves and bubbles when the water level is full.
D) Because the liquid can be transported in large quantities by a cold truck, the quality of the transport liquid can be maintained.
E) A polyliner is installed inside for multi-purpose use, and at the same time, it is not necessary to clean the inside of the container. Allows transportation.
F) The loading capacity increases because the weight of the container is light.
G) CO2 emissions can be reliably reduced by eradicating empty cargo on the way home using conventional lorries.
H) A simple liner loading / unloading device can be installed on the container lid, making it extremely easy to attach and detach, and to prevent inhalation.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  FIG. 1 shows an external cylinder in which a sliding body 2 of a multistage sliding container 1 with a sealing film embodying the present invention is provided with a rigid, round shape or substantially square shape such as a steel plate or a rigid resin plate. The cylindrical body 3 is joined to the upper lid 4 with the opening / closing lid 4A through the flange 3A to arrange the intermediate body 5A, 5B, and the inner body 6 is joined to the flange 7A of the bottom plate 7 through the flange 6A. Each is provided with a step A and is sequentially combined in the vertical direction. The lower inner surface of the outer cylinder 3 and the upper outer surface of the intermediate cylinder 5A facing each other, the lower inner surface and the upper outer surface of the intermediate cylinder 5B, the lower inner surface and the inner cylinder 6 The bridge mechanism 8 is provided on the outer periphery of the upper surface so that it can be vertically slid and locked, and the upper body flange 3A and the inner body flange 6A are expanded with the main body 2 in the state where each body portion is expanded. Or laminate or poly -The upper and lower flange seals 9A and 9B are joined to each other to seal the gaps B, and the outer periphery of the seal film 9 in the middle of the body of the seal film 9 is formed. For example, by inserting a trough 10 using a wire rope or the like with a through hole 11 and inserting it into, for example, a step A between the intermediate cylinders 5A and 5B, the intermediate cylinder 5A can be slidably mounted temporarily. In addition, the valve 12 is arranged on the bottom plate 7 and is assembled to the bottom frame 13 provided with the forklift insertion hole 13A, and the leg columns 16 having a predetermined height are arranged at the four corners of the bottom frame 13 and folded. The empty container 2 with the sealing film 9 is formed to be stackable, and a jig 14 such as a brace 14 and a lashing belt 15 that can be arbitrarily fixed between the upper and lower parts of the body and a lashing belt 15 are arbitrarily arranged to constitute a multistage sliding container 1 with a sealing film. ing. And this container is formed in this way, and when the release | release from the main body trunk | drum 5A, 5B of the sealing film | membrane 9 distribute | arranged inside is restrained, it is formed so that the inside mounting of the polyliner 17 for liquid contact is possible. At the same time, reaction springs 18 are arranged between the upper and lower sides of the main body to facilitate the work and operation such as mounting the liner 17. It should be noted that the seal film 9 can be provided with a flange 9C to facilitate the operation during expansion and contraction. The bridge mechanism 8 may be formed by bending the upper portion 8A downward and the lower portion 8B upward, or meshing with predetermined ribs on the facing surfaces (not shown). Possible bridge mechanisms 8 can also be formed. In addition, as shown in FIG. 6, the container is folded in a gusset shape with a reverse concave gap circuit 19 shown in FIG. 8 provided in the width direction of the back surface of the opening / closing lid 4 </ b> A of the upper lid 4 and a turn roller 20. The polyliner 17 after drainage can be formed so that it can pass back and forth. Of course, the upper lid 4 can be provided in a manhole manner (not shown). And this container can also be used stationary. Alternatively, although not shown, the sealing film can be attached to the entire surface of the outer container. In addition, the main body specifications can be provided in the pressure resistant specifications so that water can be sent to high places and remote places.

  The multi-stage sliding container 1 of the present invention thus formed is intended for various liquids excluding flammables and dangerous substances. Mainly, a 2,000 to 5,000-liter rigid container is multi-slid. The seal film 9 follows the movement of each cylindrical body body and reliably seals the gap B, and has a one-way type liquid contact liner 17 such as a polyfilm. Therefore, even if the filling water level is in the middle, the body part and the lid can be lowered and transported in a state where all the water levels are full. Accordingly, the container 1 is mounted and fixed on the vehicle using a forklift or the like, the main body 2 is pulled up and fixed with a jig such as a brace 14, and the polyliner nozzle 17A and the like. After confirming the mounting of the nozzles 7B of the main body, extending the polyliner upward, filling a predetermined amount of liquid from the lower valve 12, and confirming the full tank without air in the polyliner 17, the polyliner Is stored in the back of the lid 4A, the upper lid 4 is sufficiently pushed down and fixed with a jig 14, and further tightened with a lashing belt 15 or the like to transport the internal liquid as an elastic cargo. In addition, the present invention can be used for mass transport of raw milk by using a rigid outer container body 2, for example, by attaching a polyliner that does not contain an additive that complies with the ministry ordinance such as milk. In addition, when the content liquid is discharged at the destination, the main body is pulled upward, and the valve 12 can be opened with the polyliner extended to allow easy discharge. After the completion of cargo handling, the container can be folded down with the sealing film 9 attached and the volume reduced, and the reduced volume can be stacked on the pedestal 16 of the gantry and collected on the return flight or on a separate flight. In addition, it is desirable to tighten with the brace 14 or the belt 15 even after the folding reduction. In the case of a box-type vehicle, the container formed in this way can be placed in series and discharged in and out at the same time, and at the same time, the same door as the rear is installed on the side of the truck. It can be provided so that it can be inserted and removed from the side and rear. Or ... In addition, the container 1 can be filled with liquid on the ground and loaded on a truck or railcar, and at the same time, the container 1 that is filled with liquid can be unloaded using a heavy machine at the destination. It can be used as a normal container for a while after being filled. In addition, the polyliner can be exchanged after returning, or can be exchanged at the destination and loaded with a different liquid.

  In addition, as shown in FIGS. 4 and 5, according to the present invention, the upper and lower multistage expansion / contraction container 1 for liquid, for example, a flat tube having a round shape with different diameter pipes made of aluminum steel, reinforced resin, or the like is used. In order to form a body part by forming a plurality of parts for each of them and combining them in a circumferential shape, and forming each of the different diameter upper and lower stages so as to be able to be combined, a bridge mechanism 8A, An equally divided block 21 with 8B is provided, and an ear 22 having a step is provided on either the left or right back of each block, and sequentially joined to the external back of the adjacent block 20 to form a cylinder. It is also possible to assemble and form the inner surfaces so that they can be flush with each other, and to assemble them so as to be slidable up and down by notching C the lower bridge 8B of the outer tube that is hooked on the ear portion 22 and fits. Each of the ears 22 can be joined by a rivet type D or an adhesive type. Further, in the multistage container 1 including the straight portion long block 23A having a substantially square shape on the four sides and the corner portion block 23B provided with the four corners, the straight portion body portion is a die-extrusion type. A long molded product is cut to a predetermined length to provide a straight body block 23A, and each different-diameter corner body 23B is formed as a single unit for each stage, and the different-diameter corner body 23 is formed on the left and right end backs. By arranging the joining ears 22 having a step and externally joining the adjacent straight body block back portions, it is possible to assemble the circumferential inner surface as much as possible. In the same manner as described above, the container can be formed so as to be slidable up and down by notching C the lower tube bridge portion to be externally fitted.

  The upper and lower multi-stage expansion / contraction type liquid container 1 formed in this way is manufactured in order to manufacture a plurality of different-diameter barrels provided with a bridge mechanism in advance. The bridge mechanism is provided by bending it into a key shape around the circumference, or by arranging ribs around the circumference, and it is formed so that it can be slid up and down. The accuracy was not stable. However, by providing a die-molded member with ears 22 equally divided in the circumferential direction for each step barrel as in the present invention in a structure that can be joined by rivet processing other than heat welding, or by bonding, etc. The accuracy is ensured, and the use of the heavy joining processing method facilitates vertical sliding, and the processing man-hour can be significantly reduced.

  Further, according to the present invention, as shown in FIGS. 6 to 9, a device 24 for mounting on the inner surface of the multi-stage sliding container 1 with the built-in seal film 9, for example, for facilitating the mounting / dismounting of the polyliner 17, is manufactured as a liner. Usually, the liner 17 molded into a gusset-like envelope is wound around a core 25 with a flange 25A provided corresponding to a predetermined container width, and this is applied to the expanded container upper lid 4 before the liquid is charged. A stand 26 that can be arbitrarily tumbled and stored at both ends in the width direction near the opening is set and the container body 2 is lifted upward, and the nozzle 17A at the tip of the liner is placed in a reverse concave space on the back of the opening / closing lid 4A. 32, it passes through the gap circuit 19 of the turn roller 20 installed in 32, and is attached to the nozzle 7B of the container, and the valve 12 is attached and the liquid is introduced from below. Can, the filling liquid is stretched every corner from the bottom, it can be filled with a predetermined amount while gradually pull the liner 17 from the upper side of the core 25. After filling a predetermined amount of liquid, loosen the braces 14 of the container, squeeze the excess of the liner 17 with the turn roller 20 and bundle it together and store it on the back of the open / close lid 4A, and add the upper lid 4 downward. It can be fastened and fixed with braces 14 and fastened with a lashing belt 15 to make the liquid elastic and transported. During transportation, for example, the stand 26 is fallen on the upper lid 4 and temporarily stored in the storage pocket 27 with the empty core 25 set, and after arrival at the destination, the stand 26 is loaded on the vehicle and filled in the interior. With the container fully expanded upward, the opening of the opening / closing lid 4A and the tip of the liner 17 pulled out from the back of the lid is set again on the winding core 25, the lower valve 12 is opened, and discharging is started. The liner 17 with the nozzle after use is wound up by winding up the slack of the liner 17 that is generated as the liquid is discharged to prevent suction into the discharge port, and at the same time discharging the internal liquid and removing the valve 12 to prevent the liquid from dripping. The collection of 17 is easily formed. The liner can also be collected after returning. Alternatively, the different liquid can be mounted by exchanging the liner at the destination. Although not shown, the winding device 24 after use can be formed in the same manner by providing an overturning arm, and at the same time, it forms a mechanical device such as a return spring type semi-automatic winding type. I can do it.

  The multi-layer container liner total attaching / detaching device 24 according to the present invention formed in this way simply sets the nozzle for mounting the liner, which has conventionally been difficult when a person dives into the container or inflates with air. Thus, the filling liquid can naturally swell the liner in every corner and can be installed without any wrinkles, and can prevent the suction to the discharge port by successively winding up the extra length of the liner that occurs at the time of discharge. In particular, a liner maker that has been initially wound around the core 25 may be inserted into the insertion holes 26A and 26B of the stand of the device 24 as it is, and then pulled out. When it is inflated with air, it is possible to eliminate germs contained in the air.

FIG. 2 is an overall perspective view of a multi-stage sliding container equipped with a seal film inside the present invention, and shows a state when the body portion is reduced in a half-divided shape by a square container. It is front sectional drawing which shows the block diagram of a main body same as the above, and shows a state where one side is short-circuited at the time of extension, and one side is slid downward and reduced. It is a front view of the sealing film with a hook mounted in the container of the present invention, and one side shows a cross section. The front fragmentary view which provided the container circular main part outer container in the molding block assembly type. The internal front view of the upper block single-piece molding with a flange same as the above. The whole perspective view of the liner mounting | wearing removal apparatus provided in the upper cover of the container of this invention Same as above. Side surface sectional drawing of attachment / detachment work of a stand type liner mounting | wearing removal apparatus same as the above. Side surface sectional drawing which shows the mode of winding core mounting | wearing to a manual liner mounting | wearing removal apparatus same as the above.

DESCRIPTION OF SYMBOLS 1 Multistage sliding container with built-in seal film 2 Sliding main body 3 External cylindrical trunk | drum 3A Same flange 4 Upper lid 4A Opening / closing lid 5A, 5B Intermediate trunk 6 Internal trunk 6A Same flange 7 Bottom plate 7A Nozzle 8 Bridge mechanism 8A Upper bridge 8B lower part Bridge 9 Seal film made of flexible sheet 9A Same top flange 9B Same bottom flange 9C 襞 10 １１ 11 Through hole 12 Valve 13 Bottom mount 13A Forklift insertion hole 14 Bracing tool 15 Lashing belt 16 Leg column 17 For contact Polyliner 17A Same nozzle 18 Reaction spring 19 Gap circuit 20 Turn roller 21 Round molding block 22 Joint ear 23A Long block 23B Corner block 24 Liner loading / unloading device 25 Winding core 25A Same flange 26 Stand 26a Liner first insertion port 2 6b Second insertion slot 27 Winding core storage pocket 28 Handle 29 Lock 30 Hinge 31 Filling liquid 32 Space part A for reverse concave turn roller A Step B Clearance C Notch D Rivet

Claims (3)

  A liquid container that can be mounted on and off a railway freight car or a regular truck can be attached to and detached from a steel or rigid (hereinafter referred to as rigid) external container with a liquid contact film (hereinafter referred to as a liner). It is assumed that the inner liquid can be transported at full water level, and the body is provided in a multi-stage fitting type that is divided into horizontal circular cuts of different diameter cylinders, and a flange member is provided at the upper part of the outermost body. An upper lid with an opening / closing lid is similarly provided, and a bottom plate with a valve (hereinafter also referred to as a saucer or a pan) is arranged at the lower part of the innermost body, and a predetermined gap is provided between the different-diameter cylindrical body parts. Forming a multi-stage container main body that can be engaged with the upper and lower slides by arranging a suspension mechanism (hereinafter referred to as a bridge or a bridge mechanism) in the inner circumferential direction of the lower end of each trunk part and in the outer circumferential direction of the upper end part, And each step gap seal is in contact with the inner surface of the body part of the container A flexible film body (hereinafter referred to as a seal film) is mainly disposed between the upper and lower flanges, and at least one outer peripheral shape in the middle of the seal film body portion is provided with an anti-release means (hereinafter referred to as a flange). And a liner that can be attached to and detached from the liner is formed on the entire inner surface. Multistage sliding liquid expansion / contraction container configured to allow passage.   In the above-mentioned rigid outer container for the liquid, the up-down / down-scaling type container is mainly made of aluminum steel or a reinforced-resin-made flat shape round shape or rounded at the four corners (hereinafter referred to as R). It relates to a manufacturing method of a container body in which a substantially square-shaped, rounded, different-diameter multi-stage cylindrical body is fitted on the upper and lower ends of each stage so as to be slidable up and down. In order to divide the same-diameter body part into a plurality of parts that can be assembled into a circumferential shape, the round-shaped different-stage body parts are formed into single parts (hereinafter referred to as blocks) or divided into substantially square shapes. The body is provided with an extruded product with a straight portion and a corner block, and a step joining margin (hereinafter referred to as an ear) in either the left or right end of the equally divided block or the back of the left and right ends of the corner block. Also called) It is formed by multiple joining so that each inner peripheral surface can be flush with each other, and the outer trunk lower bridge portion that hangs on each ear is cut out so that the different diameter trunks can be fitted and slidable up and down. The multistage sliding liquid expansion / contraction container according to claim 1, which is configured.   The present invention relates to a liner attaching / detaching device for mounting inside an expansion / contraction container for liquid, and is provided side by side with the liner gap passing turn roller disposed substantially flush with the inner surface of the opening / closing lid of the upper lid, An arm or the like is permanently installed so that it can be stored arbitrarily, and after the stand stands up, the liner wound around a core body of a predetermined diameter (hereinafter referred to as a winding core) is set so that it can be pulled out freely, and the nozzle is used as a container nozzle. It is attached so that the lower part of the filling liquid can be charged, and when the inner liquid starts to be discharged, the end of the liner is fixed to the winding core, and the winding core is manually or mechanically provided. The liner mounting / removal device according to claim 1 or 2, wherein the generated excess amount is sequentially wound and collected to prevent suction of the container discharge port.

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