Bulk container

Abstract

The application discloses a bulk container, which comprises a box, a discharge port formed on the side of the box, a discharge valve arranged in the discharge port, a bag liner, a flange connected to the bag liner, the flange being operatively connected to the discharge valve and being in communication with the discharge valve, and a supporting member arranged at a gap between the bag liner and the side of the box at the discharge port and supporting the bag liner to prevent the bag liner from being torn.

Description

Technical Field

[0001] This invention relates to logistics containers, and more particularly to a bulk container. Background Technology

[0002] Nowadays, it is common to use large containers to transport bulk liquids. These containers are made of metal, wood, and plastic. They all have a bottom and four side panels. Due to sealing issues, a liner is often placed inside the container, and the liquid is then placed in the liner. Finally, a lid is placed on the container to protect the liner from easy damage.

[0003] The liner is equipped with a flange that connects to a drain valve at the bottom of the container, allowing liquid inside the liner to drain out. The inventors discovered that the liner was easily torn, causing leakage. Summary of the Invention

[0004] The purpose of this invention is to provide a bulk container that reduces the probability of liner breakage.

[0005] The housing has a discharge port on its lower side, and the discharge port contains a discharge valve.

[0006] A liner bag, with a flange connected to it, the flange being operably connected to and communicating with the discharge valve, wherein, after the flange is connected to the discharge valve, a gap is formed between the liner bag and the side portion at the discharge port; and

[0007] A support member is disposed at the gap to support the liner and prevent the liner from tearing.

[0008] Compared with the prior art, the embodiments of the present invention include a support block in the bulk container, which can fill the gap between the liner and the side of the box, preventing the liner from being torn and reducing the probability of liner damage.

[0009] In one embodiment, the support is a support block, which is at least partially located above the flange, fills the gap between the liner and the side and supports the liner to prevent the liner from tearing.

[0010] In one embodiment, the upper surface of the portion of the support block above the flange is an inclined surface, which slopes downwards toward the center of the bulk container to support the liner bag;

[0011] Alternatively, the support block is detachably fixed to the flange;

[0012] Or, the inclined surface is an arc surface that convexes toward the lining bag;

[0013] Or, the support block is made of a flexible and elastic material;

[0014] In one embodiment, the support block is made of an elastic material or a foamed material.

[0015] In one embodiment, the upper surface of the portion of the support block above the flange is an inclined surface, which slopes downwards toward the center of the bulk container to support the liner bag;

[0016] The support block has a snap-fit ​​position that extends through the support block along its thickness direction and opens towards the side of the support block to form an opening.

[0017] The flange is engaged in the snap-fit ​​position through the open port, and the axial direction of the flange extends along the thickness direction of the support base.

[0018] In one embodiment, the discharge valve has a limiting plate on the side facing the flange, a portion of the limiting plate protruding away from the discharge valve to form a protrusion, and a receiving groove is formed on the side facing the discharge valve. The valve control switch of the discharge valve is located in the receiving groove. The support block has a limiting port on the side facing the limiting plate, and the protrusion is located in the limiting port.

[0019] In one embodiment, the limiting opening and the open opening are disposed opposite to each other on both sides of the support block along a direction perpendicular to the thickness of the support block; wherein, the limiting opening is an elongated groove, and the limiting opening extends in the direction from the open opening to the limiting opening;

[0020] Or, the snap-fit ​​position is a circular hole, and the flange is fitted with or clearance-fitted to the circular hole;

[0021] Alternatively, the support block has guide portions on both sides of the opening, which are used to guide the flange into the limiting opening.

[0022] In one embodiment, the support block is clamped to the outside of the flange and attached to the side of the housing where the discharge port is located.

[0023] In one embodiment, the housing includes: a base and a side wall mounted on the base, wherein a groove is provided on the base, and the discharge port is located on the groove wall;

[0024] The housing also includes a support base, which is disposed relative to the flange along the axial direction of the flange. The support base is disposed in the groove, and a guide groove is formed on the side of the support base facing the flange. The guide groove is connected to the upper surface of the flange and the base respectively.

[0025] In one embodiment, a slot is formed on the lower surface of the support block, the slot extends through the support block along the axial direction of the flange, and at least a portion of the flange facing the side is located within the slot.

[0026] In one embodiment, the bottom of the slot is arc-shaped.

[0027] In one embodiment, a first snap-fit ​​groove is formed on the end face of both ends of the support block in the width direction, and the two ends of the support base in the width direction are respectively snapped into the two first snap-fit ​​grooves.

[0028] In one embodiment, the first snap-fit ​​groove is formed on the lower section of the side of the support block; one end of the support base in the width direction is snapped into the first snap-fit ​​groove, and the upper surface of the support base abuts against the bottom of the first snap-fit ​​groove along the height direction of the support base.

[0029] Alternatively, a second snap-fit ​​groove is provided at one end of the support base facing the support block, and the end of the support block facing the support base snaps into the second snap-fit ​​groove.

[0030] In one embodiment, the support block has a receiving groove at one end facing the side, and the portion of the discharge valve exposed outside the side is received in the receiving groove;

[0031] In one embodiment, the support base and the support block are fixedly connected to each other;

[0032] Or, the material of the support base is an elastic material;

[0033] Or, the guide groove is an arc-shaped groove, which is a fan shape that gradually expands from the flange toward the upper surface of the base;

[0034] Or, the upper surface of the support is flush with the upper surface of the base;

[0035] Alternatively, the inner sides of both ends of the support base in the width direction are located on the outer sides of both ends of the support block in the width direction; the inner sides of both ends of the support base in the width direction and the outer sides of both ends of the support block in the width direction are hinged to each other.

[0036] The support base has a receiving groove at its bottom, and the support block can be operably flipped relative to the support base until it is stored in the receiving groove.

[0037] In one embodiment, the liner bag has a liner bag body with a drain outlet;

[0038] The support is a reinforcing sheet, which is attached to the outer surface of the liner body and has an opening that communicates with the drain port.

[0039] The flange is fixedly connected to the reinforcing plate, and the flange has a through port, which is connected to the drain port.

[0040] In one embodiment, the reinforcing sheet is a reinforcing sheet made of a tough and high-strength film.

[0041] In one embodiment, the reinforcing sheet is a rubber sheet, a silicone sheet, or a plastic sheet;

[0042] Or, the reinforcing sheet is an airbag-type reinforcing sheet or a reinforcing sheet made of irregularly shaped foam material. Attached Figure Description

[0043] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0044] Figure 1 This is a schematic diagram of the liner bag in an embodiment of the present invention;

[0045] Figure 2 This is a structural diagram of another structure of the liner bag in an embodiment of the present invention;

[0046] Figure 3 yes Figure 2 Front view of the inner lining bag;

[0047] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0048] Figure 5 This is a cross-sectional view of the bulk container in an embodiment of the present invention;

[0049] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0050] Figure 7 This is a schematic diagram of the structure of the bulk container in an embodiment of the present invention;

[0051] Figure 8 This is a front view of the liner bag when the reinforcing sheet is an airbag-type reinforcing sheet in an embodiment of the present invention;

[0052] Figure 9 This is a cross-sectional view of the bulk container in an embodiment of the present invention;

[0053] Figure 10yes Figure 9 Enlarged view of point C in the middle;

[0054] Figure 11 This is a schematic diagram of the structure of the bulk container in an embodiment of the present invention;

[0055] Figure 12 This is a cross-sectional view of the bulk container without support blocks installed in an embodiment of the present invention;

[0056] Figure 13 yes Figure 12 Enlarged view at point A1;

[0057] Figure 14 This is a cross-sectional view of the bulk container with support blocks installed in the third embodiment of the present invention;

[0058] Figure 15 yes Figure 14 Enlarged view at point B1;

[0059] Figure 16 This is a schematic diagram of the support block in an embodiment of the present invention;

[0060] Figure 17 This is an exploded view of the support block, discharge valve, support base, and box body in the bulk container of this invention.

[0061] Figure 18 This is a cross-sectional view of the bulk container after the support block and support base are installed in an embodiment of the present invention;

[0062] Figure 19 yes Figure 18 Enlarged view of point C1;

[0063] Figure 20 This is a schematic diagram of the support base in an embodiment of the present invention;

[0064] Figure 21 This is a cross-sectional view of the bulk container in an embodiment of the present invention;

[0065] Figure 22 yes Figure 21 Enlarged view at point D;

[0066] Figure 23 This is a schematic diagram of the structure after the support block and support base are fixedly connected in an embodiment of the present invention;

[0067] Figure 24 This is a schematic diagram of the structure after the support block and support base are hinged in an embodiment of the present invention;

[0068] Figure 25 This is a schematic diagram of the structure of the support block and support base after folding in an embodiment of the present invention;

[0069] Figure 26This is a schematic diagram of the structure when the support block is installed in the bulk container in an embodiment of the present invention;

[0070] Figure 27 yes Figure 26 Enlarged view at point E in the middle;

[0071] Figure 28 This is a cross-sectional view of the bulk container with support blocks installed in an embodiment of the present invention;

[0072] Figure 29 yes Figure 18 Enlarged view at point F;

[0073] Figure 30 This is a schematic diagram of the structure of the support base, flange and discharge valve after assembly in an embodiment of the present invention;

[0074] Figure 31 This is an exploded view of the support base, flange, and discharge valve assembled in an embodiment of the present invention;

[0075] Figure 32 This is a schematic diagram of the structure of the back of the support base in an embodiment of the present invention;

[0076] Figure 33 This is a cross-sectional view of the support base, flange, and discharge valve assembled in an embodiment of the present invention.

[0077] Explanation of reference numerals in the attached drawings: 1. Box body; 11. Side; 111. Discharge port; 12. Base; 121. Groove; 1211. Second inclined surface; 13. Side wall; 2. Liner bag; 11a. Liner bag body; 112a. Filling port; 3. Discharge valve; 31. Limiting plate; 311. Protrusion; 312. Storage slot; 32. Switch; 4. Flange; 121a. Disc; 122a. Connecting cylinder; 23a. Groove; 231a. Inclined surface; 3. Discharge valve; 31a. Valve body; 32a. Connecting seat; 321a, connecting ring; 322a, baffle; 4a, reinforcing plate; 41a, arc surface; 5a, gap; 5, support block; 51, slot; 52, inclined surface; 53, storage slot; 54, first snap-fit ​​slot; 55, snap-fit ​​position; 56, open opening; 57, guide position; 571, outer inclined surface; 572, inner inclined surface; 58, limiting opening; 6, support seat; 61, guide groove; 62, second snap-fit ​​slot; 63, receiving groove; 64, second hinge hole; 65, first inclined surface. Detailed Implementation

[0078] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of the present invention to enable the reader to better understand this application. However, the technical solutions claimed in this application can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0079] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that embodiments may be practiced without one or more of these specific details. In other instances, well-known apparatuses, structures, and techniques associated with this application may not have been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0080] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0081] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative of the essential spirit of the technical solution of the present invention.

[0082] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0083] The singular forms “a” and “the” used in this specification and the appended claims include plural references unless otherwise expressly stated herein. It should be noted that the term “or” is generally used to mean “and / or” unless otherwise expressly stated herein.

[0084] In the following description, in order to clearly demonstrate the structure and working method of the present invention, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0085] The first embodiment of the present invention is described below with reference to the accompanying drawings. This first embodiment relates to a bulk container.

[0086] The bulk container includes a body 1, a liner 2, and a support. A discharge port 111 is provided on the side 11 below the body 1, and a discharge valve 33 is located within the discharge port 111. A flange 4 is connected to the liner 2, and the flange 4 is operably connected to and communicates with the discharge valve 33. After the flange 4 is connected to the discharge valve 33, a gap 5a is formed between the liner 2 and the side 11 at the discharge port 111. The support is located at the gap 5a, and the portion of the support may be partially located within the gap 5a. The portion located within the gap 5a supports the liner 2 and prevents the liner 2 from tearing.

[0087] In actual production and processing, such as Figures 1 to 7 As shown, the liner 2 is typically placed inside a box 1. A drain port 111 is located on the side of the box 1 at the bottom, and this drain port 111 contains a drain valve 3. Generally, to allow the liquid inside the liner 2 to drain smoothly, such as... Figures 1 to 3 As shown, the liner 2 has a liner body 11a, and the flange 4 is connected to the drain valve 3, allowing the liquid inside the liner 2 to be easily drained. The inventors discovered that the liner 2 is very prone to failure because after the flange 4 is connected to the drain valve 3, there is a certain distance between it and the side wall 13 of the housing 1. Therefore, when the liner 2 is filled with liquid and during transportation, the liquid inside the liner 2 will slosh around and repeatedly impact the connection between the flange 4 and the liner body 11a, causing the connection to break and leak.

[0088] In order to solve the problems discovered by the inventors, such as Figures 1 to 4 As shown, the liner 2 has a liner body 11a, and the liner body 11a has a drain port.

[0089] The aforementioned support is a reinforcing plate 4a, which is attached to the outer surface of the liner body 11a and has an opening that communicates with the drain port. A flange 4 is fixedly connected to the reinforcing plate 4a, and the flange 4 has a through hole, which communicates with the drain port.

[0090] Since the liner body 11a has a reinforcing piece 4a, the connection between the liner body 11a and the flange 4 can be strengthened by the reinforcing piece 4a, thereby increasing the toughness of the connection between the liner body 11a and the flange 4 and reducing the risk of leakage of the liner 2.

[0091] Specifically, the reinforcing sheet 4a is generally made of a tough and high-strength film. In some implementations, such as... Figure 6 As shown, the reinforcing sheet 4a can be a rubber sheet, a silicone sheet, or a plastic sheet.

[0092] Specifically, in practice, the reinforcing plate 4a can be first attached to the liner body 11a, with the opening on the reinforcing plate 4a connected to the drain port on the liner body 11a. Then, the flange 4 is welded to the reinforcing plate 4a and the liner body 11a by hot-melt welding. Figure 1 and Figure 2 As shown, flange 4 presses against reinforcing plate 4a.

[0093] Of course, in some embodiments, such as Figures 8 to 10 As shown, the reinforcing piece 4a can also be an airbag-type reinforcing piece 4a, such as... Figure 8 As shown, the reinforcing piece 4a is a flat airbag. This flat airbag is located between the flange 4 and the liner body 11a. It can not only strengthen the connection between the flange 4 and the liner body 11a, but also support the liner body 11a and prevent the liner body 11a from shaking violently.

[0094] Of course, when the reinforcing sheet 4a is in the form of a thin film, it can also play a role in supporting the liner 2, but its effect is far less than that of the airbag-type reinforcing sheet 4a.

[0095] In some embodiments, the reinforcing sheet 4a may also be a reinforcing sheet made of irregularly shaped foamed material, such as a reinforcing sheet made of foamed material such as EPP or EVA.

[0096] When the liner 2 is placed inside the box 1, the reinforcing sheet 4a can be placed against the side wall 13 of the box 1, so that the reinforcing sheet 4a can have a support point and further strengthen the support of the reinforcing sheet 4a.

[0097] Specifically, in this embodiment, such as Figure 6 and Figure 9 As shown, flange 4 includes a disc 121a and a connecting cylinder 122a. The disc 121a is attached to and fixedly connected to the reinforcing plate 4a. The disc 121a and the reinforcing plate 4a can be connected by heat fusion welding. Alternatively, the disc 121a can be glued to the reinforcing plate 4a. The connecting cylinder 122a is coaxially and fixedly connected to the disc 121a, and after the disc 121a and the connecting cylinder 122a are connected, a through-hole is formed inside the disc 121a and the connecting cylinder 122a. To allow the connecting cylinder 122a to connect to external equipment (e.g., the drain valve 3), a connecting ring 321a is provided on the outer ring surface of the connecting cylinder 122a. This connecting ring 321a can connect to external products. In this embodiment, the connecting ring 321a is a snap-fit ​​ring, which allows the connecting cylinder 122a to connect to the drain valve 3. In some embodiments, the connecting ring 321a can also be threaded.

[0098] Additionally, it should be noted that the shape of the liner 2 can be varied, for example... Figure 1As shown, the lining 2 can be square, of course, as... Figure 2 As shown, the liner 2 can also be polygonal, and the shape of the liner 2 can be changed at will as needed.

[0099] In addition, the liner body 11a also has a filling port 112a, through which liquid can be filled into the liner body 11a.

[0100] like Figures 5 to 7 and Figures 9 to 10 As shown, a discharge port 111 is provided on the side below the box 1, and a discharge valve 3 is provided inside the discharge port 111. The flange 4 on the liner 2 is connected to and communicates with the discharge valve 3.

[0101] Since the liner body 11a has a reinforcing piece 4a, the connection between the liner body 11a and the flange 4 can be strengthened by the reinforcing piece 4a, thereby increasing the toughness of the connection between the liner body 11a and the flange 4 and reducing the risk of leakage of the liner 2.

[0102] Specifically, at the connection between flange 4 and liner body 11a, the connection is separated from the side wall 13 of box body 1, and the reinforcing plate 4a overlaps the side wall 13. Therefore, the reinforcing plate 4a can not only reinforce the liner body 11a, but also support the liner body 11a.

[0103] In addition, such as Figure 6 and Figure 10 As shown, a groove 23a is formed on the bottom surface of the housing 1, the discharge valve 3 is located on the groove wall of the groove 23a, and the flange 4 is located within the groove 23a. Preferably, as Figure 5 As shown, the groove 23a is formed on the bottom surface of the housing 1 near the side wall 13 of the housing 1, so that the distance between the flange 4 and the side wall 13 is not too far.

[0104] like Figure 6 As shown, when flange 4 is connected to discharge valve 3, the reinforcing plate 4a is large and overlaps on side wall 13. In this way, the reinforcing plate 4a can provide support for the liner body 11a and reduce the risk of tearing of the liner body 11a.

[0105] When the reinforcing piece 4a is an airbag-type reinforcing piece 4a, the airbag-type reinforcing piece 4a fills the gap 5a between the liner body 11a and the side wall 13, providing the best support effect, such as... Figure 10 As shown, when the reinforcing sheet 4a fills the gap 5a between the liner body 11a and the side wall 13, the airbag-type and irregularly shaped foam material type reinforcing sheet 4a is bent to form an arc surface 41a that contacts the liner body 11a.

[0106] In addition, specifically, such as Figure 10As shown, the discharge valve 3 includes a valve body 31a and a connecting seat 32a. The valve body 31a is disposed within the discharge port 111, and the connecting seat 32a is fixed within the valve body 31a. The connecting seat 32a is coaxially arranged with the flange 4. The connecting seat 32a includes a connecting ring 321a and a baffle 322a. The connecting ring 321a is detachably connected to the flange 4. Specifically, the connecting ring 321a is detachably connected to the connecting sleeve 122a of the flange 4, for example, by means of a threaded connection or a snap-fit ​​connection. The baffle 322a is arranged perpendicular to the connecting ring 321a and parallel to the disc body 121a of the flange 4. The airbag-type reinforcing piece 4a is disposed between the baffle 322a and the disc 121a. When the liner body 11a is pressed on the airbag-type reinforcing piece 4a, the baffle 322a can support the reinforcing piece 4a and prevent it from collapsing, so that the reinforcing piece 4a can support the liner body 11a.

[0107] In addition, such as Figure 6 and Figure 10 As shown, the bottom of the groove 23a is connected to the bottom plate of the box 1 by an inclined surface 231a, and each inclined surface 231a slopes upward from bottom to top away from the discharge port 111. That is, the groove wall of the groove 23a is an inclined surface 231a. Since the groove wall of the groove 23a is an inclined surface 231a, the inclined surface 231a plays a role in supporting the liner body 11a and preventing damage to the liner body 11a.

[0108] The present invention also includes a second embodiment, which is basically the same as the first embodiment. In this embodiment, the bulk container also includes a box body 1 and a liner 2. A discharge port 111 is provided on the side 11 below the box body 1, and a discharge valve 3 is provided inside the discharge port 111. A flange 4 is connected to the liner 2. Specifically, the liner 2 has a drain port, and the perimeter of the drain port is welded to the flange 4, thus connecting the liner 2 to the flange 4. When the flange 4 is connected to the discharge valve 3, the liquid inside the liner 2 can be discharged through the discharge valve 3.

[0109] In addition, such as Figure 12 and Figure 13 As shown, when flange 4 is connected to drain valve 3, a gap remains between the periphery of the connection between liner 2 and flange 4 and the side 11 of housing 1. When liner 2 is filled with liquid, the impact of the liquid can easily tear liner 2, causing it to break. Moreover, flange 4 in existing bulk containers is easily torn. The inventors have discovered that flange 4 is easily torn because liner 2 pulls on flange 4 during shaking, causing cracks at the weld of flange 4, resulting in leakage from the bulk container.

[0110] Unlike the first embodiment, the support in this embodiment is a support block 5. At least part of the support block 5 is located above the flange 4. The support block 5 can fill the gap between the liner 2 and the side 11. By supporting the liner 2 with the support block 5, the liner 2 will not shake violently in the box, thereby preventing the liner 2 from being torn.

[0111] Preferably, the upper surface of the portion of the support block 5 above the flange 4 is an inclined surface that slopes downwards toward the center of the bulk container to support the liner 2.

[0112] Specifically, the support block 5 is clamped outside the flange 4 and attached to the side 11 of the housing 1 with the discharge port 111. The support block 5 can fill the gap between the liner 2 and the side 11. Since the support block 5 can fill the gap between the liner 2 and the side 11 of the housing 1, the liner 2 can lean against the support block 5. Because the support block 5 supports the liner 2, it prevents the liner 2 from being torn or damaged, reducing the probability of the liner 2 being damaged.

[0113] Specifically, such as Figures 14 to 16 As shown, a groove 51 is formed on the lower surface of the support block 5. This groove 51 extends through the support block 5 along the axial direction of the flange 4, and at least a portion of the flange 4 facing the side 11 is located within the groove 51. Of course, in some embodiments, the groove 51 can also be formed on the left and right sides of the support block 5. Figure 16 As shown, the bottom of the slot 51 is arc-shaped, and the opening of the slot 51 is set in parallel. Since the flange 4 is circular, the arc-shaped bottom of the slot 51 makes it convenient to attach the support block 5 to the outside of the flange 4. Specifically, the support block is attached to the outside of the connecting cylinder of the flange 4.

[0114] like Figure 15 and Figure 16 As shown, since the upper surface of the support block 5 is a slope 52, which slopes downward from the side 11 to the center of the bulk container, the liner 2 can transition to the side 11 (i.e. the side wall 13 of the box 1) through the slope 52.

[0115] At the same time, such as Figure 15 and Figure 16 As shown, a storage groove 53 is also provided on the end face of the support block 5 facing the side 11. The part of the discharge valve 3 exposed outside the side 11 is stored in the storage groove 53, so that the support block 5 and the side 11 can fit more tightly.

[0116] In addition, such as Figure 17As shown, the housing 1 includes a base 12 and a side wall 13 mounted on the base 12. To allow the liquid in the liner 2 to drain out as quickly as possible, a groove 121 is provided on the base 12, and a discharge port 111 is located on the groove wall of the groove 121. Because the groove 121 is at the lowest position, the liquid in the liner 2 can be completely drained.

[0117] Of course, it should be noted that in some embodiments, the discharge port 111 may also be located on the side wall 13.

[0118] In addition, specifically, such as Figures 17 to 22 As shown, the housing 1 also includes a support base 6, which is located within the groove 121 and is positioned opposite to the flange 4 along the axial direction of the flange 4. A guide groove 61 is also provided on the side of the support base 6 facing the flange 4, connecting the upper surfaces of the flange 4 and the base 12. This facilitates the flow of liquid from the liner 2 through the guide groove 61 into the flange 4 and the drain valve 3.

[0119] like Figure 15 and Figure 20 As shown, the shape of the bottom of the support base 6 is adapted to the shape of the groove 121. The bottom surface of the support base 6 is a first inclined surface 65. Correspondingly, the groove 121 also has a second inclined surface 1211 that corresponds to the first inclined surface 65.

[0120] In addition, such as Figure 19 As shown, to facilitate the guidance of liquid into the flange 4, the guide groove 61 is an arc-shaped groove 121, which is a fan shape that gradually expands from the flange 4 towards the upper surface of the base 12. Preferably, the upper surface of the support 6 is flush with the upper surface of the base 12.

[0121] In addition, such as Figure 19 As shown, to facilitate the engagement between the support base 6 and the support block 5, first engagement grooves 54 are provided on the end faces of both ends of the support block 5 in the width direction. The two ends of the support base 6 in the width direction respectively engage with the two first engagement grooves 54. Specifically, as shown... Figure 16 As shown, the first snap-fit ​​groove 54 is opened on the lower section of the side of the support block 5. One end of the support base 6 in the width direction is snapped into the first snap-fit ​​groove 54, and the upper surface of the support base 6 and the bottom of the first snap-fit ​​groove 54 along the height direction of the support base 6 abut against each other.

[0122] like Figure 19 As shown, the support base 6 is provided with a second snap-fit ​​groove 62 at one end facing the support block 5, and the end of the support block 5 facing the support base 6 is snapped into the second snap-fit ​​groove 62.

[0123] In some embodiments, such as Figure 23As shown, the support block 5 and the support base 6 are fixedly connected together, so the support block 5 and the support base 6 are not easily lost when the box 1 is recycled.

[0124] Additionally, in some embodiments, such as Figures 24 to 25 As shown, the box 1 can be folded up, therefore, for easy recycling of the support base 6 and support block 5, as... Figures 24 to 25 As shown, the inner sides of both ends of the support base 6 in the width direction are located on the outer sides of both ends of the support block 5 in the width direction, and the inner sides of both ends of the support base 6 in the width direction and the outer sides of both ends of the support block 5 in the width direction are hinged to each other. At the same time, a receiving groove 63 is also provided at the bottom of the support base 6, and the support block 5 can be flipped relative to the support base 6 until it is stored in the receiving groove 63.

[0125] Specifically, such as Figure 24 and Figure 25 As shown, the support block 5 has first hinge holes on the outer sides of both ends in the width direction, and the support base 6 has second hinge holes 64 on the inner sides of both ends in the width direction. The bulk container also includes two hinge shafts, which are inserted into the corresponding first and second hinge holes 64, respectively, thus allowing the support block 5 and the support base 6 to be hinged together.

[0126] Furthermore, the support block 5 is preferably made of an elastic material, such as rubber, EVA, or EPP. Similarly, the support base 6 is preferably also made of an elastic material, such as rubber, EVA, or EPP.

[0127] It should be noted that this embodiment may also include the reinforcing sheet 4a mentioned above, that is, the reinforcing sheet 4a and the support block 5 exist simultaneously.

[0128] The present invention also provides a third embodiment of a bulk container, such as... Figures 26 to 29 As shown, the bulk container in this embodiment is basically the same in structure as the bulk container in the second embodiment. The main difference is that the support block 5 in this application is not the same as the support block 5 in the first embodiment, and the support base 66 is not included in this embodiment.

[0129] Preferably, in order to facilitate the support block 5 in supporting the liner 2, the inclined surface 52 on the support block 5 is an arc surface, which allows the inclined surface 52 to tilt more smoothly and avoids the liner 2 being scratched.

[0130] Preferably, in this embodiment, such as Figures 26 to 31 As shown, the support block 5 is detachably fixed to the flange 4. Therefore, in the actual installation process, the support block 5 can be fixed to the flange 4 first, and then the flange 4 can be fixed to the discharge valve 3 inside the housing 1. This also facilitates the installation and fixing of the support block 5.

[0131] Specifically, to facilitate the connection between support block 5 and flange 4, such as Figures 30 to 32 As shown, the support block 5 has a snap-fit ​​position 55, which extends through the support block 5 along its thickness direction and opens towards the side of the support block 5, forming an opening 56. The flange 4 is snapped into the snap-fit ​​position 55 through this opening 56, and the axial direction of the flange 4 extends along the thickness direction of the support base 6, that is, the axial direction of the flange 4 is substantially parallel to the thickness direction of the support block 5. In this way, the support block 5 can be clamped outside the flange 4.

[0132] Preferred, such as Figure 32 As shown, the support block 5 has guide positions 57 on both side walls 13 of the opening 56. The guide positions 57 are used to guide the flange 4 into the limiting port 58. Specifically, the guide position 57 is a guide inclined surface 52, such as... Figure 32 As shown, the guide inclined surface 52 includes an outer inclined surface 57152 and an inner inclined surface 57252. The outer inclined surface 57152 extends from the outside of the opening 56 to the inside of the snap-fit ​​position 55 and towards the center of the opening 56, while the inner inclined surface extends from the outside of the opening 56 to the inside of the snap-fit ​​position 55 and away from the center of the opening 56. The outer inclined surface 57152 is located outside the inner inclined surface 57252 and they are connected to each other. With the addition of the guide inclined surface 52, the flange 4 can more easily snap into the snap-fit ​​position 55 of the support block 5.

[0133] Furthermore, preferably, the support block 5 is made of a flexible and elastic material. Therefore, when the flange 4 is assembled with the support block 5, the guide part contacts the flange 4. As assembly continues, the guide part deforms and expands outward. At this time, the flange 4 enters the snap-fit ​​position 55 until the flange 4 and the snap-fit ​​position 55 are properly engaged.

[0134] Specifically, such as Figures 31 to 33 As shown, the snap-fit ​​position 55 is a circular hole, and a transition fit or clearance fit is preferably used between the flange 4 and the circular hole. Of course, an interference fit can also be used between the flange 4 and the circular hole.

[0135] In this embodiment and the first embodiment above, the support block 5 and support base 6 can be supported by plastic materials, or they can be made of other materials, such as wood, silicone, rubber, etc.

[0136] In addition, to strengthen the discharge valve 3, such as Figure 27 and Figure 31As shown, the discharge valve 3 generally has a limiting plate 31, which is located on the side of the discharge valve 3 facing the flange 4. A portion of the limiting plate 31 protrudes towards the discharge valve 3, forming a protrusion 311. Simultaneously, a receiving groove 53312 is formed on the side facing the discharge valve 3, and the valve control switch 32 of the discharge valve 3 is located within this receiving groove 53312. Preferably, the support block 5 has a limiting opening 58 on the side facing the limiting plate 31, and the protrusion 311 is located within this limiting opening 58. Through the mutual cooperation and limiting between the protrusion 311 and the limiting opening 58, the support block 5 can be prevented from rotating relative to the flange 4, further effectively preventing damage to the liner 2 due to relative shaking between the support block 5 and the flange 4 during transportation.

[0137] Preferably, the limiting port 58 and the open port 56 are arranged opposite each other on both sides of the support block 5 along the thickness direction perpendicular to the support block 5. The limiting port 58 is an elongated groove 121, and the shape of the protrusion 311 matches the shape of the limiting port 58. The limiting port 58 extends in the direction from the open port 56 to the limiting port 58, so that when the support block 5 is inserted into the flange 4, the limiting port 58 is inserted into the protrusion 311.

[0138] The fourth embodiment of the present invention also provides a method for manufacturing a liner bag. Specifically, the liner bag can be manufactured by the following method: First, a reinforcing sheet is attached to the liner bag body. This reinforcing sheet is the same as the reinforcing sheet in the above embodiments, and therefore has an opening. Simultaneously, the liner bag body is also the same as the liner bag body in the above embodiments, and has a drainage port. The opening on the reinforcing sheet communicates with the drainage port on the liner bag body. Preferably, the opening on the reinforcing sheet and the drainage port on the liner bag body are coaxially arranged.

[0139] Then, the flange in the above embodiment is heat-fused onto the reinforcing plate. The flange has a through-hole, and the through-hole on the flange, the opening on the reinforcing plate, and the drain port on the liner body are all connected, so that the liquid inside the liner can be drained out.

[0140] When the reinforcing sheet is a thin sheet, such as a rubber sheet, silicone sheet, or plastic sheet, when the flange is heat-melted onto the reinforcing sheet, the reinforcing sheet is also heat-melted onto the liner body, thus reducing the number of welding steps.

[0141] In addition, when the reinforcing sheet is an airbag type reinforcing sheet, the liner body and the airbag type reinforcing sheet can be heat-fused together first, and then the flange and the airbag type reinforcing sheet can be heat-fused together. Of course, the above welding steps can be reversed.

[0142] The preferred embodiments of the present invention have been described in detail above, but it should be understood that, if necessary, aspects of the embodiments can be modified to utilize aspects, features, and concepts from various patents, applications, and publications to provide other embodiments.

[0143] In light of the detailed description above, these and other changes can be made to the embodiments. Generally, the terminology used in the claims should not be considered limited to the specific embodiments disclosed in the specification and claims, but should be understood to include all possible embodiments together with the full scope of equivalents enjoyed by these claims.

[0144] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes in form and detail may be made without departing from the spirit and scope of the present invention.

Claims

1. A bulk container, characterized in that, The bulk containers include: The housing has a discharge port on its lower side, and the discharge port contains a discharge valve. A liner bag, with a flange connected to it, the flange being operably connected to and communicating with the discharge valve, wherein, after the flange is connected to the discharge valve, a gap is formed between the liner bag and the side portion at the discharge port; and A support member is provided at the gap to support the liner and prevent the connection between the flange of the liner and the liner body from tearing. The support is a support block, which is at least partially located above the flange, fills the gap between the liner and the side and supports the liner to prevent the liner from tearing; The support block has a snap-fit ​​position that extends through the support block along its thickness direction and opens towards the side of the support block to form an opening. The flange is engaged in the snap-fit ​​position through the open port, and the axial direction of the flange is substantially parallel to the thickness direction of the support block.

2. The bulk container according to claim 1, characterized in that, The upper surface of the portion of the support block above the flange is an inclined surface, which slopes downwards towards the center of the bulk container to support the liner bag. Alternatively, the support block is detachably fixed to the flange; Or, the inclined surface is an arc surface that convexes toward the lining bag; Alternatively, the support block may be made of a flexible and elastic material.

3. The bulk container according to claim 1, characterized in that, The support block is made of elastic material or foam material.

4. The bulk container according to claim 1, characterized in that, The discharge valve has a limiting plate on the side facing the flange. A portion of the limiting plate protrudes away from the discharge valve to form a protrusion and a receiving groove is formed on the side facing the discharge valve. The valve control switch of the discharge valve is located in the receiving groove. The support block has a limiting port on the side facing the limiting plate, and the protrusion is located in the limiting port.

5. The bulk container according to claim 4, characterized in that, The limiting opening and the open opening are disposed opposite to each other on both sides of the support block along a direction perpendicular to the thickness of the support block; wherein, the limiting opening is an elongated groove, and the limiting opening extends in the direction from the open opening to the limiting opening; Or, the snap-fit ​​position is a circular hole, and the flange is fitted with or clearance-fitted to the circular hole; Alternatively, the support block has guide portions on both sides of the opening, which are used to guide the flange into the limiting opening.

6. The bulk container according to claim 4, characterized in that, The support block is clamped to the outside of the flange and attached to the side of the box body where the discharge port is located.

7. The bulk container according to claim 6, characterized in that, The housing includes: a base and a side wall mounted on the base, wherein a groove is provided on the base and the discharge port is located on the groove wall; The housing also includes a support base, which is disposed relative to the flange along the axial direction of the flange. The support base is disposed in the groove, and a guide groove is formed on the side of the support base facing the flange. The guide groove is connected to the upper surface of the flange and the base respectively.

8. The bulk container according to claim 6, characterized in that, A slot is formed on the lower surface of the support block, the slot passes through the support block along the axial direction of the flange, and at least a portion of the flange facing the side is located in the slot.

9. The bulk container according to claim 8, characterized in that, The bottom of the slot is arc-shaped.

10. The bulk container according to claim 7, characterized in that, The support block has a first snap-fit ​​groove on each end face in the width direction, and the two ends of the support base in the width direction are respectively snapped into the two first snap-fit ​​grooves.

11. The bulk container according to claim 10, characterized in that, The first snap-fit ​​groove is formed on the lower section of the side of the support block; one end of the support base in the width direction is snapped into the first snap-fit ​​groove, and the upper surface of the support base abuts against the bottom of the first snap-fit ​​groove along the height direction of the support base. Alternatively, a second snap-fit ​​groove is provided at one end of the support base facing the support block, and the end of the support block facing the support base snaps into the second snap-fit ​​groove.

12. The bulk container according to claim 6, characterized in that, The support block has a storage groove at one end facing the side, and the portion of the discharge valve exposed outside the side is stored in the storage groove.

13. The bulk container according to claim 7, characterized in that, The support base and the support block are fixedly connected to each other; Or, the material of the support base is an elastic material; Or, the guide groove is an arc-shaped groove, which is a fan shape that gradually expands from the flange toward the upper surface of the base; Or, the upper surface of the support is flush with the upper surface of the base; Alternatively, the inner sides of both ends of the support base in the width direction are located on the outer sides of both ends of the support block in the width direction; the inner sides of both ends of the support base in the width direction and the outer sides of both ends of the support block in the width direction are hinged to each other. The support base has a receiving groove at its bottom, and the support block can be operably flipped relative to the support base until it is stored in the receiving groove.

14. The bulk container according to claim 1, characterized in that, The liner bag has a liner bag body, and the liner bag body has a drain outlet; The support is a reinforcing sheet, which is attached to the outer surface of the liner body and has an opening that communicates with the drain port. The flange is fixedly connected to the reinforcing plate, and the flange has a through port, which is connected to the drain port.

15. The bulk container according to claim 14, characterized in that, The reinforcing sheet is a reinforcing sheet made of a tough and high-strength film.

16. The bulk container according to claim 15, characterized in that, The reinforcing sheet is a rubber sheet, a silicone sheet, or a plastic sheet; Or, the reinforcing sheet is an airbag-type reinforcing sheet or a reinforcing sheet made of irregularly shaped foam material.

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