WO2015192789A1 - 用于中型散装容器的内衬袋 - Google Patents

用于中型散装容器的内衬袋 Download PDF

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Publication number
WO2015192789A1
WO2015192789A1 PCT/CN2015/081795 CN2015081795W WO2015192789A1 WO 2015192789 A1 WO2015192789 A1 WO 2015192789A1 CN 2015081795 W CN2015081795 W CN 2015081795W WO 2015192789 A1 WO2015192789 A1 WO 2015192789A1
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Prior art keywords
liquid
liner bag
bag
bulk container
lining
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PCT/CN2015/081795
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English (en)
French (fr)
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上海鸿研物流技术有限公司
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Publication of WO2015192789A1 publication Critical patent/WO2015192789A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details

Definitions

  • This invention relates to intermediate bulk containers, and more particularly to liner bags for use in intermediate bulk containers.
  • a sealing liquid bag applied to a medium-sized bulk container, and the main body portion thereof is a sealed soft body container which is formed by hot-melt welding or high-frequency welding using a PVC coated cloth.
  • the two ends of the sealed soft body container are respectively provided with an inlet valve and an outlet valve.
  • the lining bag has a better effect in general high flow rate and liquid liquid, but in the discharge of viscous liquid, there is a disadvantage of slow liquid discharge and low efficiency, and the liquid remains large in the lining bag after the discharge is completed. This results in a large waste of cost, so that the liner bag is wound around the residual liquid by spiral extrusion or the like at the end of the discharge.
  • the present invention provides a liner bag which is advantageous for discharging a viscous liquid.
  • the lining bag comprises a lining bag body, a discharge port and a filling port, wherein the filling port is sealingly connected with the lining bag body, and the liquid is poured into the lining bag through the filling port; the venting port is sealed with the lining bag body Connected, the liquid is discharged from the liner bag through the discharge port; and the liner bag is used to contain the liquid, and the liner bag body has elasticity, so that when the liquid is filled, the surface area of the liner bag body increases as the liquid is poured, The volume of the liner bag is increased; as the liquid is discharged, as the liquid is discharged, the surface area of the liner bag body is reduced, and the volume of the liner bag is reduced.
  • the liner bag is for holding a viscous liquid.
  • the viscous liquid is a grease, shower gel, hair gel or honey.
  • the lining bag is disposed inside the intermediate bulk container, and the venting opening of the lining bag is secured in the discharge passage at the bottom of the intermediate bulk container.
  • the inner liner bag is made of an elastic material, and the elastic material has a property that is not easily corroded by the liquid contained in the inner liner bag or does not react with the liquid to be loaded.
  • the intermediate bulk container is provided with a movable element that is capable of moving within the intermediate bulk container and squeezing the inner liner bag to facilitate liquid lining the bag when the liquid in the liner bag is discharged. emission.
  • the top of the intermediate bulk container is provided with a movable cover plate, and the movable cover plate is provided with a locking mechanism, and the movable cover plate can be fixedly fixed to the intermediate bulk container by the locking mechanism, and the locking mechanism can be moved after being unlocked.
  • a cover plate is movable down the side wall of the intermediate bulk container within the intermediate bulk container.
  • the movable cover plate is provided with a rotary lock hook, and the rotary lock hook is provided with a lock hole.
  • the side plate of the intermediate bulk container is provided with a lock tongue. When the lock tongue is locked into the lock hole, the movable cover is movable. The plate is fixed to the intermediate bulk container, and after the movable cover and the side plate are unlocked, the rotary lock hook can be rotated above the movable cover.
  • the movable cover plate is provided with a rectangular side wall, and when the rotary lock hook and the side plate are unlocked and rotated to the upper side of the movable cover plate, the rectangular side wall of the cover plate and the rectangular side wall of the inner side of the intermediate bulk container are moved.
  • the mating guide allows the movable cover to slide down within the container.
  • a protective sleeve is further disposed on the outer periphery of the inner liner bag, and the inner liner bag and the protective sleeve are sealingly connected at the filling opening and the discharge opening, and the protective cover can protect the inner liner bag from being protected by the inner liner bag.
  • the external medium is damaged.
  • the protective sleeve is further provided with a venting joint, and the venting joint is sealingly connected with the protective sleeve.
  • the venting joint is sealingly connected with the protective sleeve.
  • the protective cover is formed from one or more layers of PVC coated cloth or PE film by hot melt welding or high frequency welding.
  • the discharge port serves as a filling port at the same time.
  • the filling opening of the liner bag is detachably fixed to the top of the protective cover, and the discharge opening is detachably fixed to the bottom of the protective cover.
  • the liner bag is welded directly to the flange edge or the joined edge of the discharge opening or is connected by a connecting member into a sealable container.
  • the other connecting member is a connecting member such as a buckle or a clip.
  • the inner liner bag used in the intermediate bulk container of the invention has elasticity, and is particularly suitable for filling a viscous liquid.
  • the inner wall area of the inner liner bag is reduced, and after the liquid discharge is completed, The inner wall area of the liner bag is reduced to a minimum, and the amount of liquid remaining in the liner bag is small.
  • the invention is beneficial to increase the utilization rate of the liquid, especially the viscous liquid, reduce waste and save cost, and omits the action of artificially discharging the residual liquid, thereby saving manpower.
  • Figure 1 is a perspective view of a medium bulk container including a liner bag in accordance with a first embodiment of the present invention
  • Figure 2a is an enlarged view of a portion of Figure 1;
  • FIG. 2b-2c are schematic structural views of the movable cover of the intermediate bulk container of Fig. 1;
  • Figure 3 is a partially cutaway perspective view of a medium bulk container including a liner bag in accordance with a first embodiment of the present invention
  • 4a is a schematic view showing the lining bag of the intermediate bulk container according to the first embodiment of the present invention in a liquid-free state, when the discharge port and the filling port are sealed;
  • Figure 4b is a cross-sectional view showing the inner liner bag of the intermediate bulk container in the liquid filling process according to the first embodiment of the present invention
  • Figure 4c is a perspective view of the liquid filling of the inner liner bag in the intermediate bulk container according to the first embodiment of the present invention
  • Figure 4d is a schematic view showing the liquid discharge process of the inner liner bag in the intermediate bulk container according to the first embodiment of the present invention
  • Figure 4e is a schematic view showing the completion of liquid discharge of the liner bag in the intermediate bulk container according to the first embodiment of the present invention
  • Figure 5 is a perspective view of a medium bulk container including a liner bag in accordance with a second embodiment of the present invention.
  • Figure 6 is a cross-sectional perspective view of a medium bulk container including a liner bag in accordance with a second embodiment of the present invention.
  • Figure 7 is a perspective view of a protective cover in a medium bulk container according to a second embodiment of the present invention.
  • Figure 8a is a cross-sectional view showing the completion of liquid filling of a liner bag in a medium bulk container according to a second embodiment of the present invention
  • FIGS. 8b-8d are schematic views of a liquid discharge process of a liner bag in a medium bulk container according to a second embodiment of the present invention.
  • Figure 8e is a view showing the completion of liquid discharge of the inner liner bag in the intermediate bulk container according to the second embodiment of the present invention. schematic diagram.
  • the liner bag of the present invention is typically used to hold liquid materials, especially viscous liquids such as grease, shower gel, hair gel, honey, and the like.
  • the liner bag is typically installed in an intermediate bulk container during shipping.
  • FIG. 1 is a perspective view of a medium bulk container 1 including a liner bag in accordance with a first embodiment of the present invention.
  • Figure 2a is an enlarged view of a portion of Figure 1;
  • Figure 2b-2c is a schematic view of the movable cover of the intermediate bulk container of Figure 1.
  • the top of the intermediate bulk container 1 is provided with a movable cover plate 7, and the movable cover plate 7 is provided with a rotary locking hook 9 which is rotated when the movable cover plate 7 is mounted and fixed on the intermediate bulk container 1.
  • the locking hook 9 is turned over to the outside of the container side panel 10 and the locking tongue 11 on the side panel 10 is locked into the locking hole 12 of the rotary locking hook 9.
  • the movable sliding cover 7 can be removed as needed.
  • the movable cover 7 is provided with a side wall 14 which, when the rotary lock hook 9 and the side panel 10 are unlocked and rotated above the movable cover 7, the side wall 14 of the movable cover 7 and the inner side of the intermediate bulk container
  • Figure 3 is a partially cutaway perspective view of a medium bulk container including a liner bag in accordance with a first embodiment of the present invention.
  • the intermediate bulk container 1 is provided with a liner bag 2
  • the liner bag 2 is provided with a filling port 3 and a discharge port 4.
  • the discharge opening 4 of the liner bag 2 is placed in the bottom discharge passage 13 of the intermediate bulk container 1 to facilitate the discharge of the liquid in the liner bag 2.
  • the filling port 3 is for filling the inner liner bag 2 with liquid.
  • Figure 4a is a schematic view of the liner bag 2 of the present invention when it is not filled with liquid.
  • the liner bag 2 of the present invention is an elastic liner bag that increases or decreases in volume during filling and during discharge, as it is filled or discharged.
  • the movable cover plate 7 is removed from the intermediate bulk container 1 and the filling port 3 of the inner liner bag 2 is opened to start filling the liquid.
  • Figure 4b shows a schematic view of the liner bag 2 during the filling process.
  • the bag body of the liner bag 2 has elasticity.
  • the area of the inner wall increases as the liquid is poured, and the volume of the liner bag 2 increases.
  • Figure 4c is a schematic illustration of the liner bag 2 when liquid filling is completed.
  • the movable cover 7 can be mounted and fixed on the intermediate bulk container 1. Open the row when draining liquid after transport to the destination The mouth 4 is discharged, and the liquid is discharged from the liner bag 2.
  • Fig. 4d is a schematic view showing the liquid discharge process of the inner liner bag in the intermediate bulk container according to the first embodiment of the present invention.
  • the rotary locking hook 9 is unlocked and rotated above the movable cover plate 7, and the movable cover plate 7 is moved by gravity or downward by an external force, thereby accelerating the discharge of liquid in the inner liner bag 2. speed.
  • the inner wall area of the inner liner bag 2 is reduced, the volume of the inner liner bag 2 is reduced, and the liquid residue on the inner wall surface is less, thereby facilitating the thorough discharge of the viscous liquid in the inner liner bag 2. Can reduce resource waste and save costs.
  • the swellable or collapsible elastic lining bag is made of an elastic material such as latex. It is worth noting that the material used to make the lining bag 2 must not be easily corroded by the liquid contained in the lining bag 2 or react with the liquid to be installed, thereby avoiding shortening the service life of the lining bag 2 or deteriorating the liquid.
  • Figure 5 is a perspective view of a medium bulk container including a liner bag in accordance with a second embodiment of the present invention.
  • the cover plate 6 of the intermediate bulk container 1' of the present example does not need to be able to slide downward in the container, and the neutral bulk container of the present embodiment is elastic and expandable and can be
  • the periphery of the contracted lining bag 2 is further provided with a protective cover 5 which can protect the lining bag 2 from being pierced by a sharp external medium.
  • FIG. 6 is a cross-sectional perspective view of a medium bulk container 1' including a liner bag in accordance with a second embodiment of the present invention.
  • Fig. 7 is a perspective view showing a protective cover of the intermediate bulk container 1' according to the second embodiment of the present invention.
  • the lining bag 2 is disposed inside the protective cover 5, and the lining bag 2 and the protective cover 5 are sealingly connected at the filling port 3 and the discharge port 4, and the lining bag 2 is empty to During the filling process, the lining bag 2 and the protective cover 5 are hollow.
  • the protective sleeve 5 is further provided with a venting joint 8 which is sealed and connected. When the liquid is discharged, the gap between the protective sleeve 5 and the lining bag 2 can be filled with gas through the venting joint 8 for squeezing the lining bag 2, Achieve the effect of increasing the rate of liquid discharge.
  • the protective cover 5 is usually made of one or two layers of PVC coated cloth or PE film by hot melt welding or high frequency welding.
  • the top end of the protective cover 5 can be opened to fill the inner liner bag 2 with liquid through the filling opening 3 of the inner liner bag 2.
  • the filling port 3 and the discharge port 4 of the liner bag 2 are detachably and sealingly connected to the protective cover 5, so that the filling port 3 and the discharge port 4 can be contacted without opening the protective cover 5, thereby realizing a simple liquid. Filling and discharging.
  • the filling opening 3 is fixed to the top of the protective cover 5, and the discharge opening 4 extends beyond the side bottom of the protective cover 5 so as to be placed in the bottom discharge passage of the intermediate bulk container 1'.
  • Fig. 8a is a schematic cross-sectional view showing the completion of liquid filling of the inner liner bag in the intermediate bulk container 1' according to the second embodiment of the present invention.
  • the inner liner bag 2 is filled with liquid, and the inner liner bag 2 and the wall surface of the protective cover 5 are fitted to each other.
  • FIGS 8b-8d are schematic views of a liquid discharge process of a liner bag in a medium bulk container according to a second embodiment of the present invention
  • Fig. 8e is a schematic view showing the completion of liquid discharge of the liner bag in the intermediate bulk container according to the second embodiment of the present invention.
  • the gas is filled through the venting joint 8 to form a squeeze on the lining bag 2, which effectively accelerates the discharge of the viscous liquid and ensures the thoroughness of the liquid discharge, effectively Avoid the waste of resources.
  • the inner liner bag of the embodiment adopts the same elastic lining bag as the foregoing embodiment.
  • the surface area of the inner bag body increases as the liquid is poured, and the volume of the inner bag 2 increases;
  • the liquid is discharged, as the liquid is discharged, the surface area of the liner bag body is reduced, and the volume of the liner bag is reduced.
  • the discharge opening is secured to the bottom of one side of the intermediate bulk container, and the filling opening can be secured to the top of the opposite side of the side of the intermediate bulk container.
  • the lining bag can be welded directly to the flange edge or the connecting edge of the discharge port, or can be connected into a sealable container by a third component such as a buckle or a clamp.
  • the vent can also serve as a filling port at the same time.
  • the inner liner bag for the intermediate bulk container of the invention has elasticity, and is particularly suitable for filling viscous liquid. During the discharge of the liquid, the inner wall area of the inner liner bag is reduced, and after the liquid discharge is completed, the inner liner is provided. The inner wall area of the bag is reduced to a minimum and the amount of liquid remaining in the inner bag is small.
  • the invention is beneficial to increase the utilization rate of the liquid, especially the viscous liquid, reduce waste and save cost, and omits the action of artificially discharging the residual liquid, thereby saving manpower.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

一种有利于排放粘稠液体的内衬袋，该内衬袋（2）包括内衬袋本体、排放口（4）、灌装口（3），灌装口（3）与内衬袋本体密封连接，液体通过灌装口（3）灌入内衬袋（2）中；排放口（4）与内衬袋本体密封连接，液体通过排放口（4）排出内衬袋（2）；内衬袋（2）用于储存液体，内衬袋本体具有弹性，当液体灌装时，随着液体的灌入，内衬袋本体表面积增加，内衬袋容积增大；当液体排放时，随着液体的排出，内衬袋本体表面积减少，内衬袋容积减小，由此增加液体尤其是粘稠液体的利用率。

Description

用于中型散装容器的内衬袋 技术领域
本发明涉及中型散装容器，具体涉及用于中型散装容器中的内衬袋。
背景技术
为了粘稠性液体的储存，运输及灌装排放等，目前市场上有很多液体储运装置。
现有技术中存在一种应用于中型散装容器的密封液袋，它的主体部分为采用PVC涂塑布通过热熔焊接或高频焊接制成的密封软体容器。该密封软体容器的两端分别设有进液阀门和出液阀门。该内衬袋在一般高流速、流质液体中使用效果比较好，但在粘稠液体的排放中，则存在液体排放慢、效率低的缺点，且排放完成后液体在内衬袋中残留大，会造成较大的成本浪费，因而在排放快结束时会用螺旋挤压等方法使内衬袋缠绕挤出残留的液体。
其他排放粘稠液体的方法还包括使用叉车或其他机械机构使中型散装容器产生倾斜，排放口处于最低点。这种操作比较费时，效率低，不易操作，排放后内衬袋粘稠液的残留仍比较严重，会造成资源的浪费。
发明内容
本发明的目的是提供一种用于中型散装容器中的内衬袋，该内衬袋操作简单、效率高，有利于排放粘稠液体，从而减少资源浪费。
为实现上述目的，本发明提供了一种有利于排放粘稠液体的内衬袋。该内衬袋包括内衬袋本体、排放口和灌装口，其中，灌装口与内衬袋本体密封连接，液体通过灌装口灌入内衬袋中；排放口与内衬袋本体密封连接，液体通过排放口从内衬袋排出；以及内衬袋用于容纳液体，内衬袋本体具有弹性，使得当液体灌装时，随着液体的灌入，内衬袋本体的表面积增加，内衬袋的容积增大；当液体排放时，随着液体的排出，内衬袋本体的表面积减少，内衬袋的容积减小。
一优选实施例中，该内衬袋用于容纳粘稠状液体。
一优选实施例中，所述粘稠状液体为油脂、沐浴露、发胶或蜂蜜。
在一优选实施例中，内衬袋设置在中型散装容器内部，内衬袋的排放口固定于中型散装容器的底部的排放通道中。
在一优选实施例中，内衬袋由弹性材料制作而成，且弹性材料具有不易被内衬袋所装的液体腐蚀或不与所装液体发生反应的特性。
在一优选实施例中，中型散装容器设有可移动元件，当排放内衬袋中的液体时，可移动元件能够在中型散装容器内移动并挤压内衬袋而利于内衬袋中液体的排放。
在一优选实施例中，中型散装容器顶部设有可移动盖板，可移动盖板上设有锁定机构，可移动盖板能够通过锁定机构安装固定于中型散装容器，锁定机构解锁后，可移动盖板能够在所述中型散装容器内沿中型散装容器的侧壁向下移动。
在一优选实施中，可移动盖板上设有旋转锁钩，旋转锁钩上设有锁孔，中型散装容器的侧板上设有锁舌，锁舌锁入锁孔中时，可移动盖板与中型散装容器固定，可移动盖板与侧板解锁后，旋转锁钩能够被旋转至可移动盖板上方。
在一优选实施中，可移动盖板设有矩形侧壁，旋转锁钩与侧板解锁后被旋转至可移动盖板上方时，移动盖板的矩形侧壁与中型散装容器内侧的矩形侧壁配合导向从而可移动盖板能够在容器内向下滑动。
在一优选实施例中，中型散装容器内，在内衬袋的外围还设有保护套，内衬袋与保护套在灌装口和排放口处密封连接，保护套能够保护内衬袋不被外界介质损坏。
在一优选实施例中，保护套上还设有通气接头，通气接头与保护套密封连接，当排放内衬袋中的液体时，通过通气接头向保护套和内衬袋之间的间隙中充入气体，使得内衬袋被挤压而增大液体排放速率。
在一优选实施例中，保护套由一层或多层PVC涂塑布或PE膜通过热熔焊接或高频焊接制成。
在一优选实施例中，排放口同时用作灌装口。
在一优选实施例中，内衬袋的灌装口可拆卸地固定于保护套的顶部，排放口可拆卸地固定于保护套的底部。
在一优选实施例中，内衬袋与排放口的法兰边或连接边直接焊接密封，或者通过连接构件连接成为可密封的容器。
在一优选实施例中，另一连接构件为卡扣、卡箍等连接构件。
本发明所述的用于中型散装容器中的内衬袋具有弹性，尤其适用于灌装粘稠液体，在液体的排放过程中，内衬袋的内壁面积随之减小，液体排放完成后，内衬袋的内壁面积缩小为最小状态，残留在内衬袋里的液体很少。本发明有利于增加液体尤其是粘稠液体的利用率，减少浪费、节约成本，同时省略了人为挤压排放残留液体的动作，节省了人力。
附图说明
图1为根据本发明第一实施例的包含内衬袋的中型散装容器的立体图；
图2a是图1中a部分的放大图；
图2b-2c是图1中的中型散装容器的可移动盖板的结构示意图；
图3为根据本发明第一实施例的包含内衬袋的中型散装容器的局部剖视立体图；
图4a为根据本发明第一实施例的中型散装容器中内衬袋在无液体状态下，排放口及灌装口密封时的示意图；
图4b为根据本发明第一实施例的中型散装容器中内衬袋在液体灌装过程中的剖视示意图；
图4c为根据本发明第一实施例的中型散装容器中内衬袋液体灌装完成时的立体图；
图4d为根据本发明第一实施例的中型散装容器中内衬袋液体排放过程中的示意图；
图4e为根据本发明第一实施例的中型散装容器中内衬袋液体排放完成时的示意图；
图5为根据本发明第二实施例的包含内衬袋的中型散装容器的立体图；
图6为根据本发明第二实施例的包含内衬袋的中型散装容器的剖视立体图；
图7为根据本发明第二实施例的中型散装容器中保护套的立体示意图；
图8a为根据本发明第二实施例的中型散装容器中内衬袋液体灌装完成时的剖视示意图；
图8b-8d为根据本发明第二实施例的中型散装容器中内衬袋液体排放过程的示意图；以及
图8e为根据本发明第二实施例的中型散装容器中内衬袋液体排放完成时的 示意图。
具体实施方式
以下将结合附图对本发明的较佳实施例进行详细说明，以便更清楚理解本发明的目的、特点和优点。应理解的是，附图所示的实施例并不是对本发明范围的限制，而只是为了说明本发明技术方案的实质精神。
本发明的内衬袋通常用于容纳液态物质，尤其是例如油脂、沐浴露、发胶、蜂蜜等的粘稠状液体。在运输过程中，内衬袋通常安装在中型散装容器内。
图1为根据本发明第一实施例的包含内衬袋的中型散装容器1的立体图。图2a是图1中a部分的放大图；图2b-2c是图1中的中型散装容器的可移动盖板的结构示意图。如图1-2c所示，中型散装容器1顶部设有可移动盖板7，可移动盖板7上设有旋转锁钩9，可移动盖板7安装固定于中型散装容器1上时，旋转锁钩9翻转到容器侧板10的外侧且侧板10上的锁舌11锁入旋转锁钩9的锁孔12中，手动解锁旋转锁钩9后可根据需要拆除可移动盖板7。
此外，可移动盖板7设有侧壁14，旋转锁钩9与侧板10解锁后被旋转至可移动盖板7上方时，可移动盖板7的侧壁14与中型散装容器内侧的侧壁配合导向，原先位于容器顶部的可移动盖板7可在容器内沿容器内壁向下滑动。
图3为根据本发明第一实施例的包含内衬袋的中型散装容器的局部剖视立体图。如图3所示，中型散装容器1内设有内衬袋2，内衬袋2上设有灌装口3和排放口4。内衬袋2的排放口4置于中型散装容器1的底部排放通道13中，从而便于内衬袋2中液体的排放。灌装口3用于向内衬袋2内灌装液体。
图4a为本发明的内衬袋2未充入液体时的示意图。本发明的内衬袋2为弹性内衬袋，其在灌装过程中和排放过程中，容积随着灌装或排放而增大或减小。当需要向内衬袋2中充入液体时，将可移动盖板7从中型散装容器1拆除，打开内衬袋2的灌装口3，即可开始灌装液体。
图4b示出了内衬袋2在灌装过程中的示意图。内衬袋2的袋体具有弹性，当通过灌装口3向内衬袋2灌装液体时，随着液体的灌入，内壁面积增加，内衬袋2的容积增大。
图4c是完成液体灌装时的内衬袋2的示意图。完成液体灌装后，可将可移动盖板7安装固定在中型散装容器1上。在运输至目的地之后，需排放液体时，打开排 放口4，液体从内衬袋2中排出。
图4d为根据本发明第一实施例的中型散装容器中内衬袋液体排放过程中的示意图。如图4d所示，将旋转锁钩9解锁并旋转至可移动盖板7的上方，可移动盖板7受重力作用或在外力作用下向下运动，从而加快内衬袋2中液体的排放速度。
当液体排放时，随着液体的排出，内衬袋2的内壁面积减少，内衬袋2容积减小，内壁面液体残留少，从而有利于内衬袋2内的粘稠液体较为彻底地排放，可减少资源浪费且节约成本。
可膨胀或可收缩的弹性内衬袋由弹性材料制作而成，例如乳胶。值得注意的是，制造内衬袋2所用的材料须不易被内衬袋2所装液体腐蚀或不与所装液体发生反应，避免缩短内衬袋2的使用寿命或者使内装液体变质。
图5为本发明第二实施例的包含内衬袋的中型散装容器的立体图。与上述第一实施例的区别在于，本实例的中型散装容器1’的盖板6并不需要能够在容器内向下滑动，且本实施的中性散装容器中，在具有弹性的可膨胀且可收缩的内衬袋2的外围还设有保护套5，保护套5能够保护内衬袋2不被外界尖锐介质刺破。
图6为根据本发明第二实施例的包含内衬袋的中型散装容器1’的剖视立体图。图7为根据本发明第二实施例的中型散装容器1’中保护套的立体示意图。如图6和图7所示，内衬袋2设在保护套5的内部，内衬袋2与保护套5在灌装口3和排放口4处密封连接，在内衬袋2由空至完成灌装的过程中，内衬袋2与保护套5之间为中空。保护套5上还设有密封连接的通气接头8，当排放液体时，可通过通气接头8向保护套5和内衬袋2之间的间隙中充入气体用于挤压内衬袋2，达到提高液体排放速度的效果。
该保护套5通常由1层或两层PVC涂塑布或PE膜通过热熔焊接或高频焊接制成。保护套5的顶端可打开以通过内衬袋2的灌装口3向内衬袋2中灌装液体。
内衬袋2的灌装口3和排放口4均可拆卸地密封连接于保护套5上，从而无需将保护套5打开，即可接触到灌装口3和排放口4，实现简便的液体灌装和排放。较佳地，灌装口3固定于保护套5的顶部，而排放口4伸出保护套5的侧面底部，从而置于中型散装容器1’的底部排放通道中。
图8a为根据本发明第二实施例的中型散装容器1’中内衬袋液体灌装完成时的剖视示意图。图8a中，内衬袋2中充满液体，内衬袋2与保护套5的壁面相互贴合。
图8b-8d为根据本发明第二实施例的中型散装容器中内衬袋液体排放过程的示意图，图8e为根据本发明第二实施例的中型散装容器中内衬袋液体排放完成时的示意图。如图8b-8e所示，在液体排放过程中，通过通气接头8充入气体，对内衬袋2形成挤压，有效地加速粘稠液体的排放并保证了液体排放的彻底性，有效地避免了资源的浪费。
本实施例的内衬袋采用与前述实施例相同的弹性内衬袋，当液体灌装时，随着液体的灌入，内衬袋本体的表面积增加，内衬袋2的容积增大；当液体排放时，随着液体的排出，内衬袋本体的表面积减少，内衬袋的容积减小。
另一实施例中(图未示)，在没有保护套的情形中，排放口固定于中型散装容器某个侧面的底部，灌装口可固定于中型散装容器的上述侧面相对的一面的顶部。
内衬袋可与排放口的法兰边或连接边直接焊接密封，或者通过卡扣、卡箍类第三零部件连接成为可密封的容器。
在一优选实施例中，排放口也可同时用作灌装口。
本发明的用于中型散装容器中的内衬袋具有弹性，尤其适用于灌装粘稠液体，在液体的排放过程中，内衬袋的内壁面积随之减小，液体排放完成后，内衬袋的内壁面积缩小为最小状态，残留在内衬袋里的液体很少。本发明有利于增加液体尤其是粘稠液体的利用率，减少浪费、节约成本，同时省略了人为挤压排放残留液体的动作，节省了人力。
以上已详细描述了本发明的较佳实施例，但应理解到，在阅读了本发明的上述讲授内容之后，本领域技术人员可以对本发明作各种改动或修改。这些等价形式同样落于本申请所附权利要求书所限定的范围。

Claims (10)

  1. 一种内衬袋，所述内衬袋包括内衬袋本体、排放口和灌装口，其特征在于：
    所述灌装口与所述内衬袋本体密封连接，液体通过所述灌装口灌入所述内衬袋中；
    所述排放口与所述内衬袋本体密封连接，液体通过所述排放口从所述内衬袋排出；以及
    所述内衬袋用于容纳液体，所述内衬袋本体具有弹性，使得当液体灌装时，随着液体的灌入，所述内衬袋本体的表面积增加，所述内衬袋的容积增大；当液体排放时，随着液体的排出，所述内衬袋本体的表面积减少，所述内衬袋的容积减小。
  2. 如权利要求1所述的内衬袋，其特征在于，所述内衬袋设置在中型散装容器内部，所述内衬袋的排放口固定于所述中型散装容器的底部的排放通道中。
  3. 如权利要求1所述的内衬袋，其特征在于，所述内衬袋由弹性材料制作而成，且所述弹性材料具有不被所述内衬袋所装的液体腐蚀或不与所装液体发生反应的特性。
  4. 如权利要求2所述的内衬袋，其特征在于，所述中型散装容器设有可移动元件，当排放内衬袋中的液体时，所述可移动元件能够在所述中型散装容器内移动并挤压所述内衬袋而利于内衬袋中液体的排放。
  5. 如权利要求2所述的内衬袋，其特征在于，所述中型散装容器顶部设有可移动盖板，所述可移动盖板上设有锁定机构，所述可移动盖板能够通过所述锁定机构安装固定于所述中型散装容器，所述锁定机构解锁后，所述可移动盖板能够在所述中型散装容器内沿所述中型散装容器的侧壁向下移动。
  6. 如权利要求2所述的内衬袋，其特征在于，所述中型散装容器内，在所述内衬袋的外围还设有保护套，所述内衬袋与所述保护套在所述灌装口和所述排放口处密封连接，所述保护套能够保护所述内衬袋不被外界介质损坏。
  7. 如权利要求6所述的内衬袋，其特征在于，所述保护套上还设有通气接头，所述通气接头与所述保护套密封连接，当排放所述内衬袋中的液体时，通过通气接头向保护套和内衬袋之间的间隙中充入气体，使得内衬袋被挤压而增大液体排放速率。
  8. 如权利要求6所述的内衬袋，其特征在于，所述保护套由一层或多层PVC 涂塑布或PE膜通过热熔焊接或高频焊接制成。
  9. 如权利要求1所述的内衬袋，其特征在于，所述排放口同时用作所述灌装口。
  10. 如权利要求1所述的内衬袋，其特征在于，所述内衬袋与所述排放口的法兰边或连接边直接焊接密封或者通过另一连接构件连接成为可密封的容器。
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