KR20120030026A - Container for liquid and method of manufacturing the same - Google Patents

Abstract

PURPOSE: A liquid container and an assembling method thereof are provided to prevent liquid inside the container from directly contacting the inside of a discharge pipe and a container main body. CONSTITUTION: A liquid container(100) comprises the following: a liquid storage unit(100A) including a container main body(101) and a discharge pipe(105); a valve member(100B) including a discharge pipe connection tube(109) and a valve(108); and an inner liner(200) for storing liquid. The inner liner includes a liner main body, and a tubular liquid discharging unit penetrating the discharge pipe and being connected to the discharge pipe connection tube. One end of the tubular liquid discharging unit is installed in between the discharge pipe and the discharge pipe connection tube.

Description

Container for liquid and method for assembling the same {Container for liquid and method of manufacturing the same}

The present invention relates to a liquid container used for storing or transporting a liquid such as a liquid food or drug, in particular an electronic industrial drug, a liner used therein, and a method of inserting the liner into a container body.

Background Art Conventionally, metal or plastic containers have been generally used to store or transport liquids such as liquid foods or drugs. Since these types of containers are expensive, they cannot be used once and are generally used after being washed. However, these containers are often provided with a valve structure for taking out the liquid filled therein, but the cleaning of the part is quite complicated. In addition, when storing or transporting the chemicals for electronic industry using such a container, since the use of the container needs to manage residual dust in the container after washing, considerable labor is required.

In order to remedy this problem, in recent years, an inner liner made of a synthetic resin film or the like is used in combination with a rigid outer frame container, and each time the inner liner is used, the cleaning is omitted or simplified, and the contents are finished. Containers for liquids which can be discharged smoothly have been proposed (Patent Documents 1 and 2).

The liquid container liner disclosed in Patent Documents 1 or 2 is equipped with an inlet for filling liquid and an inlet member for outlet for discharging the filled liquid. The inlet member may be called a spout. This spout is for connecting the liner to the container bottom or the valve-mounted discharge pipe provided by the container, and the liquid filled in the liner is discharged to the outside via the spout and the discharge pipe.

For this reason, the liquid container liner needs to be provided with the spout prior to filling with the liquid. When attaching a spout to a liner, it is necessary to mount a spout by operation, such as inserting a jig into a liner and making a hole in a liner. However, when such a series of operations are performed, foreign matter is mixed in the liner and the inside of the liner is contaminated.

Moreover, since the liquid container liner disclosed by the said patent document 1 or 2 covers the main-body part of a liquid container, the filled liquid does not contact a container main body. However, after passing through the spout, the liquid is in direct contact with the inside of the discharge pipe. As a result, it is necessary to clean the discharge pipe, and when sufficient cleaning is not performed, contamination or residual dust in the discharge pipe becomes a problem.

A method for improving this problem is also proposed. That is, Patent Document 3 discloses a container container bag having a structure in which liquid does not directly contact not only the container body but also the discharge pipe portion. However, since the container bag for the container is complicated in structure, the manufacturing cost is high, and it is necessary to attach parts such as a mounting container to the bag body, so that the problem of contaminating the inside of the bag cannot be solved.

Japanese Patent Laid-Open No. 8-337288 Japanese Unexamined Patent Publication No. 2004-244104 Japanese Unexamined Patent Publication No. 2007-302273 Japanese Patent Publication 3464232

It is an object of the present invention to provide a container for a liquid, in which a liquid stored in a liquid container does not directly contact not only the inside of the container body but also inside the discharge pipe, and the stored liquid is not contaminated by foreign matter or the like. .

Container for liquid according to the present invention,

A liquid container comprising a liquid container body, a discharge pipe provided below the liquid container body,

A valve member consisting of a discharge pipe connecting pipe and a valve,

Inner liner for liquid storage inside

As having,

The inner liner comprises a liner body portion and a tubular liquid discharge portion,

The tubular liquid discharge portion penetrates through the discharge pipe, and the inner side of the tubular liquid discharge portion is arranged to be connected to the discharge pipe connecting pipe, and an end of the tubular liquid discharge part is connected to the discharge pipe and the discharge pipe connecting pipe. It is characterized by being interposed between and fixed.

Moreover, the assembling method of the liquid container by this invention is for assembling said liquid container,

The liner body portion of the liner is wound or folded and inserted into the liquid container body with the liner as a rod and the tubular liquid discharge portion as the head,

Penetrating the tubular liquid discharge portion through the discharge pipe,

It is characterized in that the end of the tubular liquid discharge portion is widened so as to be crimped and fixed between the end of the discharge pipe and the end of the discharge pipe connecting pipe of the valve member.

Moreover, the inner liner by this invention is used for said liquid container, It is characterized by the above-mentioned.

According to the present invention, a container for a liquid in which contamination of a liquid to be stored therein is suppressed is provided. That is, since there is no need to provide a mounting member or the like on the inner liner, foreign matter does not mix inside the liner, and the inner liner is replaced every time it is used, so that the inside is not contaminated even if the container is not cleaned. In addition, the structure of the inner liner is not complicated, so the manufacturing cost is low.

1A is a side view of a container for a liquid according to one embodiment of the present invention, and FIG. 1B is a sectional view of a liquid container and a valve member.
2A and 2B are front views showing the inner liner used in the liquid container of the present invention.
3A to 3F are schematic diagrams showing a method for assembling a liquid container according to one embodiment of the present invention.
4A is a cross-sectional view of a ferrule which can be used in a liquid container according to an embodiment of the present invention, and FIG. 4B is a cross-sectional view of a ferrule.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail.

1A is a side view of a container for liquid 100, which is one embodiment of the present invention. Here, the liquid container 100A is fixed to the outer frame 104 of the liquid container, and the liquid container 100A includes a metal liquid container main body 101 and a discharge pipe provided at the bottom thereof. 105). An opening 102 is provided in the upper portion of the liquid container body, and an inner liner, which will be described later, is introduced into the liquid container body from the opening 102, and the liquid is filled into the inner liner. Although the opening part 102 may be always open, it is sealed by the cover member 103 generally after liquid filling.

The discharge pipe 105 is formed of a hollow pipe, and in the illustrated liquid container, the discharge pipe 105 is drooped from the bottom of the liquid container main body 101 to be bent from the middle. At the opposite end of the liquid container body of the discharge pipe 105, a valve member 100B including a discharge pipe connecting pipe 109 and a valve 108 connected thereto is fixed by the clamp 110. In the illustrated liquid container, a ferrule (male) 106 is provided at the end of the discharge pipe 105, and a ferrule (female) fitted with the ferrule 106 is provided at the end of the discharge pipe connecting pipe 109. Installed, and they are fitted. As described later, the use of such ferrules is preferable because liquid leakage can be prevented.

1B is a conceptual cross-sectional view of the liquid container 100A and the valve member 100B. An inner liner 200 (indicated by a broken line in the drawing) is inserted into the liquid container 100A, and an end portion of the tubular liquid discharge portion is interposed between the ferrules 106 and 107 and fixed. Liquid is introduced into the inner liner 200 from the liquid introduction portion, but after completion of introduction, the liquid introduction portion is generally sealed. The method of sealing the liquid introduction portion is arbitrarily selected and is not particularly limited, but for example, a method of binding the liquid introduction portion, a method of sealing with a heat seal, or the like, and inserting the liquid introduction portion through the opening 102 and the lid member 103. Method of sealing is used. The liquid stored in this liquid container is taken out outside via the valve 108.

In the present invention, the capacity of the liquid container is not particularly limited, and any size can be employed depending on the kind and use of the liquid to be stored, or the handleability of the liquid container itself, and the like. For example, when a liquid container is conveyed by a truck etc. and conveyed by a forklift in a factory etc., a capacity is about 10-1000 liters. However, as a larger container for liquids, it is also possible to apply it to tanks, such as a tank lorry, for example, In such a case, the capacity | capacitance of the liquid container by this invention can also be set to 1000-10000 liters. It is preferable that it is 500-2000 liters, especially when using for the chemical industry.

The liquid container according to the present invention includes an inner liner having a specific shape inside the liquid container body 101. In the liquid container according to the present invention, the liquid is filled inside this inner liner.

The shape of this inner liner is shown, for example in FIG. 2A. The inner liner 200 is provided with a liner body portion 201 for storing liquid, a tubular liquid discharge portion 202, and a liquid introduction portion 203 for introducing liquid when filling the liquid into the liner body. have.

The liner body portion 201 has a shape and capacity in accordance with the shape and capacity of the liquid container body 101. In the liquid container according to the present invention, the liquid is stored inside the liner body portion 201 contained in the liquid container body 101. As a result, if the liner body portion 201 is too small compared with the liquid container body 101, a gap is formed between the liner body portion 201 and the liquid container body 101 after the liquid filling, and thus the liner may be used during transportation. There is a possibility that the body portion 201 is broken. On the other hand, if the liner body portion 201 is too large compared to the liquid container body 101, excessive wrinkles occur in the liner body portion 201 inside the liquid container body 101, and the liquid inside when the liquid is discharged. It is not possible to completely discharge the gas and there is a possibility of loss. Therefore, it is preferable to make the shape of the inner liner three-dimensional and to match the shape of the liquid container body. However, when using the planar liner mentioned later, it is common to use the thing of size slightly larger than a liquid container main body, and to adhere to the inside of a liquid container main body. Considering the cleanliness of the liner or the manufacturing cost, it is preferable to use such a planar liner.

In addition, the tubular liquid discharge part 202 is a part inserted inside the discharge pipe 105 as mentioned later. And, since the end of the tubular liquid discharge portion is fixed by the ferrules 106 and 107 at the end of the discharge tube 105, the length of the tubular liquid discharge portion 202 is generally formed longer than the length of the discharge tube 105. .

The liquid introduction portion 203 is for filling a liquid into the liner body portion 201, and the shape thereof is not particularly limited. For example, as shown in FIG. 2, it may be formed tubularly from the liner body portion 201 similarly to the tubular liquid discharge portion. When formed in this way, after introducing a liquid, you may seal by tying a tubular part etc., or you may seal with a heat seal etc. In addition, the liquid introduction portion 203 may be twisted and sealed by a fixture, or may be sealed by a method such as being sandwiched between the opening 102 and the lid member 103. In addition, since the liquid introduction portion 203 is generally located at a portion higher than the liquid to be filled, and the portion is less likely to come into contact with the liquid except when vibrating or the like during transportation, the liquidity of the portion after the liquid filling is No exact limitations are required as for the discharge part. Thus, a closed structure such as a screw cap may be formed in the liquid introduction portion, but in order to reduce the risk of contamination inside the liner and to lower the manufacturing cost, the benefit of forming such a closed structure is small.

This liner body portion 201 may be made of any material, depending on the purpose. Here, since the inside of the liner is in direct contact with the liquid to be filled, it is preferable that the chemical resistance to the liquid is high and the solubility is low. On the other hand, since stress may be applied to the liner main body at the time of transportation or the like, it is preferable that the strength such as magnetoresistance or impact resistance is high. In addition, the strength may not be important when the plastic container adheres to the inner surface of the liquid container body 101 flexibly. Moreover, it is preferable not to permeate a liquid or gas.

Although a film is generally used as a material of a liner main-body part, sufficient characteristic can be acquired in the whole film using the film of a multilayered structure, without selecting to satisfy all the above conditions simultaneously. For example, a film obtained by using a material having high chemical resistance for the inner layer in contact with the liquid and a material having high friction resistance or impact resistance in the outer layer in contact with the liquid container body can be used. have. Moreover, intensity | strength of a film can also be raised by making it the structure of two or more layers using the same material. In this case, the film is not limited to a two-layer structure, and may be three or more layers. In this case, the innermost layer is referred to as the inner layer, the outermost layer is referred to as the outer layer, and the layer in between is referred to as the intermediate layer.

First, it is preferable to use the material which is excellent in chemical-resistance and anti solubility for the inner layer which directly contacts a liquid. Moreover, when laminating with an outer layer, it is more preferable that it is excellent in low temperature seal property. From this point of view, the material of the inner layer is preferably polyethylene, and from the viewpoint of heat seal strength and influence on the chemical liquid to be filled, linear low density polyethylene having a narrow molecular weight distribution is preferable.

In addition, the outer layer and the intermediate layer that are not in direct contact with the liquid are required to have mechanical properties such as dendritic resistance and impact resistance, and gas barrier properties against nitrogen, oxygen, water vapor, a solvent, and the like. In particular, a method of introducing a gas between the liquid container body and the inner liner and extruding the liquid filled in the inner liner is sometimes employed, in which case gas barrier properties are particularly important. In addition, since the outer layer is in direct contact with the liquid container body, high friction resistance is preferable. In addition, since the liquid may come into contact with the outer layer due to a misoperation or the like during liquid filling, it is not as high as the level required for the inner layer, but is preferably high in chemical resistance.

From this viewpoint, the material of the film used for an outer layer or an intermediate | middle layer is a group which consists of a low density polyethylene, a medium density polyethylene, a high density polyethylene, linear low density polyethylene, a polypropylene, an ethylene-propylene copolymer, and an ethylene-vinyl acetate copolymer. It is preferable to use one or more resins selected from. Among these, polyethylene is preferable and linear low density polyethylene is more preferable.

In addition, in order to impart gas barrier properties such as oxygen, water vapor and a solvent, as a material of the film, a metal foil such as aluminum or copper, a film such as a polyvinyl alcohol, an ethylene-vinyl alcohol copolymer, or a polyester or a polyamide , Polyethylene, polypropylene, nylon and the like can also be used.

These film materials can be used as a composite film which combined several films according to the objective. For example, by stacking a plurality of films made of the same material into a multi-structure, even if one film breaks due to contact or the like at the time of insertion of the liner, or there are pinholes due to defects in the film itself, Since the film has a multilayer structure, leakage of the liquid can be prevented. Moreover, the film which consists of different materials can be combined and it can be set as the composite film which has the characteristic of each film. Here, the whole film does not need to be bonded together, for example, only the edge part etc. may be bonded. When bonding several films, although an adhesive agent etc. can also be used, the method of bonding by a heat seal is preferable. In the case where a heat seal is used, bonding of the composite film and formation of the liner can be performed simultaneously when forming the liner as described later.

When a composite film superimposes the film which consists of the same material, it is easy to heat-seal these. However, when a composite film is made by superposing a film made of different materials and their contact surfaces are made of different materials, the heat seal may be difficult as it is. For example, when trying to use a composite film made of polyethylene film and nylon film, they cannot be easily heat sealed. In such a case, it is preferable to provide the welding layer which consists of a material with which the other film and a heat seal are easy in the contact surface of one film. For example, when using the composite film which consists of a polyethylene film and a nylon film, by forming a polyethylene layer in one surface of a nylon film, these can be made easy to heat-seal. Such a welding layer can be formed by co-extrusion, for example, when forming a film. At the time of co-extrusion, the adhesive layer for preventing peeling of a film main body and a welding layer can also be provided.

In addition, the composite film may be a multilayer film formed by co-extrusion or the like. For example, the multilayer material which coat | covered the layer which consists of a material excellent in chemical-resistance or gas barrier property on the film surface with a large mechanical strength, etc. can also be used.

The inner liner 200 is formed using the above materials, but the forming method is not particularly limited. For example, as shown in FIG. 2B, the tubular film is flatly crushed to provide an L-shaped heat seal portion 204 at its four corner portions, which are welded at that portion to remove the excess portion 205. By this, it can manufacture as a planar liner. In addition, a sheet-like film can also be manufactured as a planar liner by cut | disconnecting to the shape as shown in FIG. 2A, superimposing a some cut | disconnected film, and adhering to a peripheral part with a heat seal or an adhesive body. Here, a tubular film or a sheet-like film may be a single film, and may laminate | stack a some film. As mentioned above, when heat-sealing in order to form a liner by using the some film which can heat-seal together, it can make a liner into a composite film by heat-sealing also films. In addition, it is preferable to manufacture an inner liner using a tubular tube because there are fewer parts to weld or adhere than when using a sheet-like film, so that cleanliness can be kept high. Further, when the inner liner 200 is attached to the liquid container, the distal end portion of the tubular liquid discharge portion 202 may be opened when the liquid introduction portion 203 is opened when the liquid liner body portion 201 is filled with liquid. There is a need. However, these may be opened at the time of liquid introduction, and they do not need to be opened at the time of forming the liner body portion 201 and when installed inside the liquid container body. Rather, it is possible to maintain the cleanliness of the interior by preventing foreign matter from entering into the inside that is closed before the liquid introduction. In this case, it is opened by cutting or the like when necessary.

The inner liner 200 thus formed is installed in the liquid container body 101 before using the liquid container. This installation procedure will be described below with reference to the drawings.

First, before introducing the inner liner 200 into the liquid container body 101, it is preferable to form a thin rod by winding or folding the liner body portion 201 (FIGS. 3A and 3B). In general, the opening 102 at the top of the liquid container body 101 has a small opening area, so that the inner liner 200 can be easily inserted. The inner liner 200 is inserted into the liquid container body with the tubular liquid discharge portion 202 at the head, and the discharge pipe 105 provided with the tubular liquid discharge portion 202 below the liquid container body 101. Is inserted into the inside of the tube, and the tip of the tubular liquid discharge portion 202 is pulled out from the end of the discharge tube 105 (FIG. 3C). As a result, the tubular liquid discharge portion 202 penetrates the discharge tube 105.

When the tip of the tubular liquid discharge portion 202 is sealed, it is cut out of the discharge pipe 105 and cut into a cylindrical shape. The tip of the tubular liquid discharge portion that has become a tubular shape is widened and folded to cover the ferrule (water) 106 provided at the end of the discharge pipe 105 (FIG. 3D).

Next, the valve member 100B is attached. The tubular liquid discharge portion 202 is folded and pressed as if to sandwich the overlapped ends. In addition, if there are wrinkles in the overlapped ends, a gap is formed in the crimped portion, which causes leakage of liquid. Therefore, it is preferable that the opening diameter of the tubular liquid discharge portion 202 and the opening diameter of the discharge pipe 105 are the same diameter. When the ferrule is provided in the discharge pipe and the discharge pipe connecting pipe, the ferrule (male) 106 and the ferrule (female) 107 are fitted together (FIG. 3E). In addition, the clamp 110 is used to fix the valve member 100B to the discharge pipe 105 (FIG. 3F). By such a configuration, part of the liner, i.e., the end of the tubular liquid discharge portion, functions as a packing to prevent liquid leakage.

Thus, in the liquid container with the inner liner 200 mounted, the inside of the liquid container body 101 is covered by the liner body portion 201, and the inside of the discharge pipe 105 is the tubular liquid discharge portion 202. The liquid filled inside the inner liner does not directly contact the interior of the liquid container body 101 or the discharge pipe 105. Therefore, when the liquid container according to the present invention is used, the inner liner 200 is replaced every time it is used, so that the inside of the liquid container 100A, specifically, the inside of the liquid container body 101 and the discharge pipe 105 may be replaced. No cleaning is necessary, and the liquid filled therein does not come into contact with the container or the like and become contaminated.

In order to facilitate mounting of the inner liner 200, a weight may be installed at the tip of the tubular liquid discharge portion 202. That is, since the material of the inner liner 200 is relatively light in specific gravity, the tip of the tubular liquid discharge portion 202 in the discharge pipe 105 at the bottom inside the liquid container body 101 having a narrow opening 102. It is sometimes difficult to induce. Therefore, by providing a weight at the tip of the tubular liquid discharge portion 202, the tip can be easily guided to the discharge pipe 105 by gravity. At this time, if the bottom part of a liquid container main body is formed in abstract, operation will become easier.

In addition, a ferromagnetic material may be attached to the tubular liquid discharge portion instead of the weight. By doing so, it is possible to insert a magnet from the discharge pipe end, pull the tip of the tubular liquid discharge portion 202 to the magnet, and pull it out of the discharge pipe 105.

In addition, the ferrule (male) 106 and the ferrule (arm) 107 which connect the edge part of the discharge pipe 105 and the valve member 100B can be arbitrarily selected according to the objective. In addition, the ferrule (male) and the ferrule (female) may be provided in reverse. Moreover, although it depends also on the clamp 110 used for coupling, what is not a ferrule in which the so-called mountain part was provided, but the contact angle may be flat. In addition, in this invention, even if such a contact surface is a flat member, it is called "ferrule" for convenience.

However, if the adhesion between the discharge pipe 105 and the valve member 101B is not sufficient, there is a possibility that the liquid filled inside leaks. In general, O-rings are often inserted into the joints of the pipes due to liquid leakage. However, in the present invention, the O-rings are not required by the inner liner and the ferrule to be inserted into the joints, and the effort to replace them is also omitted. Can be. In order to achieve this object, it is preferable that the shape of the ferrule be special in the present invention. Specifically, in the present invention, the ferrule is preferably in the following shape.

It is preferable that the ferrule suitable for use in the present invention has a circular mountain portion or a curved portion along the opening, and in particular, from the viewpoint of the liquid leakage preventing effect, each of which is preferably doubled. . A cross-sectional view of one embodiment of such a ferrule is shown in FIGS. 4A and 4B. The acid portion or the curved portion may be tripled or more, but the liquid leakage prevention effect is not dramatically improved as compared with the plural structure, which increases the manufacturing cost of the ferrule. Therefore, the double portion is advantageous in terms of cost / performance ratio. .

In the ferrule (water), in order to improve the liquid exposure preventing effect, it is preferable that the inner peak 401 is higher than the outer peak 402, but the inner peak 401 and the outer peak 402 are of the same height. You can also do

In addition, the angle θ ₁ of the cross-sections of the vertices of the inner peak portion 401 and the outer peak portion 402 is generally 50 to 60 °, and the ridge line of the inner peak portion 401 and the ridge line of the outer peak portion 402. The angle θ ₂ of the cross section between is also generally 50 to 60 °. In general, many cases that the same θ ₁ and θ _2, may be at a different angle. For example, θ ₁ may be 60 ° and θ ₂ may be 55 °.

In addition, the shape of a ferrule (female) is suitably determined according to the shape of the ferrule (male) fitted to it. For example, the angles of the inner curved portion 403 and the outer curved portion 404 of the ferrule (female) are the angles of the peaks of the peaks of the ferrule (male), and the diameter of the curved portion of the ferrule (female) corresponds to the angle of the corresponding ferrule (male). It is common to make it equal to the diameter of a peak part, respectively. In addition, it is preferable to make the depth of the curved part of a ferrule (arm) into shallower about 0.5 mm, for example according to the thickness of the film interposed than the height of the peak part of a ferrule (male). By setting it as such a shape, the liquid leakage prevention effect becomes high.

Although the material which comprises a ferrule is not specifically limited, For example, metal, such as aluminum, stainless, or iron, resin which has some hardness, such as Teflon (trade name) and polyethylene, etc. can be used.

Example 1

Two tubular films were prepared, which consisted of an 80 μm free low density polyethylene film. The inner liner was produced using these two tubular films. Specifically, the other film is inserted into the inside of one tubular film and doubled, and after performing heat seal processing as shown in FIG. 2B, the openings at both ends are also sealed by heat seal processing. The excess part was excised and the inner liner whose size of the main body part which consists of a double film is about 2 m x 3 m was produced. In addition, the sealed opening was used after cutting a sealing part immediately before use and opening it.

Example  2

A two-layer tubular film provided with a welding layer made of polyethylene on a surface of a nylon film having a thickness of 80 µm and a tubular film composed of an additive-free low density polyethylene film having a thickness of 80 µm were prepared. Using these two tubular films, an inner liner was created similarly to Example 1. At this time, the nylon film was turned outward, and the welding layer of the nylon film was in contact with the polyethylene film. In this inner liner, the outer nylon film functions as a gas barrier layer.

evaluation

After the fabricated liner was installed in the container in the above order, the inner liner was inflated by blowing the inside of the liner with clean air. The inner liner was filled with a filtered photoresist composition (AZ SR-300 (trade name), manufactured by AZ Electronic Materials, Inc., viscosity 3 cps), and allowed to stand at room temperature (about 25 ° C) for 1 hour. After standing still, the photoresist composition was collected from the valve 108, and the number of fine particles was measured. The microparticles | fine-particles measured the thing of the particle size of the size exceeding 0.23 micrometer, 0.3 micrometer, 0.5 micrometer, and 1.0 micrometer, respectively. This measurement was repeated three times while replacing the inner liner. The obtained result is as showing in Table 1. In addition, as a comparative example, the same photoresist composition was filled using the container for liquid chemicals currently used (patent document 4), and the number of microparticles after standing still at room temperature (about 25 degreeC) for 1 hour was measured. The container used in this comparative example has an inner liner, but has a member for joining the connecting member to the opening during liquid filling or discharging.

As is clear from this result, the liquid container according to the present invention is capable of supplying a chemical liquid with a stable quality beyond the conventional liquid chemical container. It can be seen.

100: liquid container
100A: liquid container
101: liquid container body
102: opening
103: cover member
104: container outer frame for liquid
105: discharge pipe
106, 107: ferrule
108: valve
100B: valve member
109: discharge pipe connector
110: clamp
200: inner liner
201: liner body portion
202: tubular liquid discharge part
203: liquid introduction portion
401, 402: obstetrics
403, 404: bend

Claims (8)

A liquid container comprising a liquid container body, a discharge pipe provided below the liquid container body,
A valve member consisting of a discharge pipe connecting pipe and a valve,
Inner liner for liquid storage inside
A liquid container comprising:
The inner liner comprises a liner body portion and a tubular liquid discharge portion,
The tubular liquid discharge portion penetrates through the discharge pipe, and the inner side of the tubular liquid discharge portion is arranged to be connected to the discharge pipe connecting pipe, and an end of the tubular liquid discharge part is connected to the discharge pipe and the discharge pipe connecting pipe. A liquid container, which is interposed between and fixed. The liquid container according to claim 1, wherein the inner liner is made of low density polyethylene. The liquid container according to claim 1 or 2, wherein the inner liner is formed of a tubular film. The end of the said discharge pipe and the end of the said discharge pipe connection pipe are mutually couple | bonded with the ferrule, The end of the said tubular liquid discharge part is interposed between the ferrules in any one of Claims 1-3. Container for liquid which is fixed and fixed. As a method for assembling the liquid container according to any one of claims 1 to 4,
The liner body portion of the liner is wound or folded and inserted into the liquid container body with the liner as a rod and the tubular liquid discharge portion as the head,
Penetrating the tubular liquid discharge portion through the discharge pipe,
The end of the tubular liquid discharge portion is widened so as to be crimped and fixed between the end of the discharge pipe and the end of the discharge pipe connecting pipe of the valve member. The method according to claim 5, wherein a weight is attached to the tip of the tubular liquid discharge part and the gravity pipe is used to penetrate the tubular liquid discharge part through the discharge pipe. The method according to claim 5, wherein a ferromagnetic material is mounted at the tip of the tubular liquid discharge portion, and a magnet is inserted from an end of the discharge tube to pull the ferromagnetic material to penetrate the tubular liquid discharge portion through the discharge tube. It is used for the container for liquids in any one of Claims 1-4, The inner liner characterized by the above-mentioned.

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