Bottom foot and base connecting structure of bulk container

By designing a connection structure between the feet and the base, and utilizing components such as clips, lead screws, and springs, the feet can be quickly disassembled and replaced. This solves the problem of damage to the inner container caused by foot deformation, reduces maintenance costs, and extends the service life of the feet.

CN223792232UActive Publication Date: 2026-01-13SHANGHAI SAKURA PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202520262644.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-19
Publication Date
2026-01-13
Estimated Expiration
2035-02-19

AI Technical Summary

Technical Problem

The base of existing medium-sized bulk containers is prone to irreversible deformation under ground friction and external impact, which can damage the inner container. Moreover, the metal base cannot be repaired after damage, and the entire base must be replaced, resulting in high maintenance costs.

Method used

Design a foot-to-base connection structure that enables quick disassembly and replacement of the foot through components such as locking blocks, lead screws, and springs. Utilize telescopic rods and support rods to distribute pressure, reduce single-point stress, and extend the service life of the foot.

Benefits of technology

It enables quick replacement of the base, reduces maintenance costs, extends the service life of the base, avoids damage to the inner container, and simplifies the maintenance process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bulk container footing and base connecting structure which comprises a base, a ton barrel and a frame, a connecting groove is formed in the bottom face of the base, a connecting block is installed in the connecting groove, the connecting block is connected with a footing, a clamping groove is formed in one side face of the connecting block, a sliding groove, a communicating groove and a strip-shaped groove are formed in the base, and a sliding plate is installed in the sliding groove. The sliding plate is connected with a clamping block and a connecting rod, the peripheral side face of the clamping block is provided with a second spring, the connecting rod is connected with a push block, the front surface and the rear surface of the base are both provided with threaded sleeves, and lead screws are installed in the threaded sleeves and connected with extrusion blocks. In the utility model, the base is in direct contact with the inner container, and the bottom feet are in direct contact with the ground, so that the bottom feet are easy to generate irreversible deformation under the action of ground friction and external force collision, the deformation parts of the bottom feet can influence the placement of the inner container and even cause the damage of the inner container, and the metal bottom feet cannot be maintained after being damaged, so that the maintenance cost is reduced. And only the whole base can be replaced, so that the maintenance cost is high.
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Description

Technical Field

[0001] This utility model belongs to the field of bulk container technology, and in particular relates to a connection structure between the bottom feet and the base of a bulk container. Background Technology

[0002] Medium bulk containers, also known as IBCs, are packaging containers used for loading bulk goods such as liquids, pastes, and solids (e.g., powders, granules). They are essential tools for modern warehousing and transportation of liquid products. IBCs consist of an inner container and a metal frame. The inner container is made of high-molecular-weight, high-density polyethylene through blow molding, resulting in high strength, corrosion resistance, and good hygiene.

[0003] Existing medium-sized bulk containers are generally placed inside an outer sheath, which typically includes the following structure: a frame, a base, and feet. The frame is a grid welded from galvanized steel pipes, welded to the upper surface of the base. The base uses a four-way forklift all-steel pallet. To support the base, multiple metal feet are generally welded to the bottom surface of the base.

[0004] However, the above-mentioned outer sheath still has the following defects: Since the base is in direct contact with the inner container and the feet are in direct contact with the ground, the feet are prone to irreversible deformation under the action of ground friction and external force collision. The deformation of the feet will also affect the placement of the inner container, and may even cause damage to the inner container. Moreover, the metal feet cannot be repaired after damage, and the entire base must be replaced, which results in high maintenance costs. In order to solve the above problems, a connection structure between the feet and the base of the bulk container is proposed. Summary of the Invention

[0005] The purpose of this utility model is to provide a connection structure between the bottom foot and the base of a bulk container, which solves the problem that since the base is in direct contact with the inner container and the bottom foot is in direct contact with the ground, the bottom foot is prone to irreversible deformation under the action of ground friction and external force collision. The deformed bottom foot will also affect the placement of the inner container and may even cause damage to the inner container. Moreover, the metal bottom foot cannot be repaired after it is damaged, and the entire base must be replaced, resulting in high maintenance costs.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A foot-to-base connection structure for a bulk container includes a base, a ton container, and a frame. The base has several connecting grooves on its bottom surface, and connecting blocks are installed within these grooves. A foot is fixedly connected to the bottom surface of each connecting block. A slot is formed on one side of each connecting block. The base has a sliding groove, a connecting groove, and a strip groove inside. A sliding plate is installed within the sliding groove. A locking block is fixedly connected to one surface of the sliding plate, and a second spring is installed on the periphery of the locking block. A connecting rod is fixedly connected to the other surface of the sliding plate, and a push block is fixedly connected to one end of the connecting rod. The base has slots on both its front and rear surfaces, and threaded sleeves are fixedly installed within these slots. A lead screw is installed within each threaded sleeve, and a pressing block is connected to one end of the lead screw.

[0008] Preferably, the base has several slots on its peripheral side, each slot has a plug installed in it, a telescopic rod is fixedly connected to one surface of the plug, a support rod is installed on the peripheral side of the telescopic rod, a connecting plate is fixedly connected to the support rod, and a first spring is fixedly connected to both sides of the connecting plate, with one end of the first spring fixedly connected to the telescopic rod.

[0009] Preferably, one end of the card block is installed in the card slot, and the card block and the card slot are slidably engaged.

[0010] Preferably, the slide plate is slidably engaged with the chute, and the extrusion block is slidably engaged with the strip groove.

[0011] Preferably, the extrusion block and the pusher block are the same size and shape.

[0012] Preferably, the lead screw is threadedly engaged with the threaded sleeve, and the push block is slidably engaged with the connecting groove.

[0013] Preferably, the insert block is slidably engaged with the slot, and the telescopic rod is slidably engaged with the support rod.

[0014] This utility model has the following beneficial effects:

[0015] This invention utilizes a locking block, a lead screw, and a second spring. When a foot is damaged, rotating the lead screw counterclockwise causes the pressing block to move outward along the groove. At this point, the pressing block no longer exerts a pushing force on the push block, and the second spring is no longer compressed, resetting its position. The second spring then pushes the sliding plate towards the side closer to the connecting groove. The sliding plate further moves the locking block, causing it to be pulled out of the slot. Then, the base is lifted, and the foot is pulled down to remove the connecting block from the connecting groove, thus completing the foot disassembly. This allows for quick foot replacement without replacing the entire base, saving costs.

[0016] This invention, by incorporating telescopic rods, support rods, and a first spring, allows the feet to support the ton container by pressing two telescopic rods inward. The telescopic rods compress the first spring, and then the inserts on both sides are inserted into the slots. The first spring then resets, providing support to the telescopic rods and ensuring a tight fit with the feet. This allows multiple feet to form a closed frame through the telescopic rods and support rods, reducing single-point stress, distributing pressure among the feet, increasing their support capacity, and preventing deformation due to the pressure of the ton container. This effectively extends the service life of the feet. Furthermore, when replacing the feet, pushing the telescopic rods in opposite directions causes them to retract, allowing the inserts to be pulled out of the slots for easy disassembly. This simple operation facilitates the removal of the feet. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a first cross-sectional view of the present invention.

[0020] Figure 3 This is a second cross-sectional view of the present invention.

[0021] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0022] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0023] The components represented by each number in the attached diagram are listed below: 1. Base; 2. Tank; 3. Frame; 4. Foot; 5. Support rod; 6. Connecting plate; 7. First spring; 8. Telescopic rod; 9. Slot; 10. Insert block; 11. Connecting block; 12. Slot; 13. Slide groove; 14. Slide plate; 15. Connecting rod; 16. Push block; 17. Locking block; 18. Second spring; 19. Lead screw; 20. Strip groove; 21. Connecting groove; 22. Extrusion block; 23. Connecting groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Please see Figures 1-5 As shown, a foot-to-base connection structure for a bulk container includes a base 1, a ton container 2, and a frame 3. The bottom surface of the base 1 has several connecting grooves 23, and connecting blocks 11 are installed within the connecting grooves 23. Foot 4s are fixedly connected to the bottom surface of the connecting blocks 11. A slot 12 is provided on one side of the connecting blocks 11. The interior of the base 1 has a sliding groove 13, a connecting groove 21, and a strip groove 20. A sliding plate 14 is installed within the sliding groove 13, and a locking block 17 is fixedly connected to one surface of the sliding plate 14. A second spring 18 is installed on the periphery. A connecting rod 15 is fixedly connected to the other surface of the sliding plate 14. A push block 16 is fixedly connected to one end of the connecting rod 15. The front and rear surfaces of the base 1 are provided with slots. A screw sleeve is fixedly installed in the slot. A lead screw 19 is installed in the screw sleeve. One end of the lead screw 19 is connected to a pressing block 22. By setting up the locking block 17, the lead screw 19, and the second spring 18, when a foot 4 is damaged, the lead screw 19 at the corresponding position is rotated counterclockwise. The lead screw 19 drives the pressing block 22 to move outward along the strip groove 20. At this time, the pressing block 22 no longer exerts a pushing force on the push block 16, and the second spring 18 is no longer compressed. The second spring 18 resets and pushes the sliding plate 14 to move closer to the connecting groove 21. The sliding plate 14 further drives the locking block 17 to move, so that the locking block 17 is pulled out of the locking groove 12. Then, the base 1 is lifted, the foot 4 is pulled down, and the connecting block 11 is pulled out from the connecting groove 23 to complete the disassembly of the foot 4. The quick replacement of the base 4 eliminates the need to replace the entire base 1, saving costs. Similarly, when installing a new base 4, insert the connecting block 11 into the connecting groove 23, rotate the screw 20 clockwise, and the screw 20 pushes the pressing block 22 to move. The inclined surface of the pressing block 22 fits against the inclined surface of the push block 16, and the pressing block 22 pushes the push block 16 to one side of the connecting block 11. The push block 16 pushes the locking block 17 into the locking groove 12 through the sliding plate 14, completing the installation and fixing of the base 4. The operation is simple and quick.

[0027] The base 4 has several slots 9 on its peripheral side. Insert blocks 10 are installed in the slots 9. A telescopic rod 8 is fixedly connected to one surface of the insert block 10. A support rod 5 is installed on the peripheral side of the telescopic rod 8. A connecting plate 6 is fixedly connected inside the support rod 5. First springs 7 are fixedly connected to both sides of the connecting plate 6. One end of the first spring 7 is fixedly connected to the telescopic rod 8. By setting up the telescopic rod 8, support rod 5, and first springs 7, when the base 4 supports the ton container 2, it presses the two telescopic rods 8 inwards. The telescopic rods 8 compress the first springs 7, and then the insert blocks 10 on both sides are inserted into the slots. Inside slot 9, the first spring 7 resets, providing support for the telescopic rod 8, ensuring it fits tightly against the base 4. This allows multiple bases 4 to form a closed frame through the telescopic rod 8 and support rod 5, reducing single-point stress, distributing pressure across the bases 4, increasing their support capacity, and preventing deformation due to the pressure of the ton container 2. This effectively extends the service life of the bases 4. Furthermore, when replacing the bases 4, pushing the telescopic rod 8 in opposite directions causes it to retract, pulling the insert 10 out of the slot 9 for easy disassembly. This simplifies the operation of removing the bases 4.

[0028] One end of the locking block 17 is installed in the locking groove 12, and the locking block 17 and the locking groove 12 are slidably engaged. The sliding plate 14 is slidably engaged with the sliding groove 13, and the pressing block 22 is slidably engaged with the strip groove 20. The pressing block 22 and the push block 16 are the same size and shape. The lead screw 19 is threadedly engaged with the threaded sleeve, and the push block 16 is slidably engaged with the connecting groove 21. The insert block 10 is slidably engaged with the slot 9, and the telescopic rod 8 is slidably engaged with the support rod 5.

[0029] like Figures 1-5As shown, the method of using this utility model is as follows: When using this utility model, when the foot 4 supports the ton 2, it presses the two telescopic rods 8 inward. The telescopic rods 8 compress the first spring 7, and then the inserts 10 on both sides are inserted into the slots 9. The first spring 7 returns to its original position, providing support for the telescopic rods 8, so that they fit tightly against the foot 4. This allows multiple feet 4 to form a closed frame through the telescopic rods 8 and the support rods 5, reducing single-point stress, distributing pressure on the feet 4, improving the support force of the feet 4, and preventing deformation due to the pressure of the ton 2. This effectively extends the service life of the feet 4. When a foot 4 is damaged, the telescopic rods 8 are pushed in opposite directions, causing them to retract and pull the inserts 10 out of the slots 9. The telescopic rods 8 and the support rods 5 are then disassembled. The screw 19 in the corresponding position is rotated counterclockwise. The screw 19 drives the pressing block 22 to move outward along the strip groove 20. At this time, the pressing block 2... 2. When the pushing force on the push block 16 is no longer generated, the second spring 18 is no longer compressed and returns to its original position. The second spring 18 pushes the slide plate 14 to move closer to the connecting groove 21. The slide plate 14 further drives the locking block 17 to move, so that the locking block 17 is pulled out of the slot 12. Then, the base 1 is lifted and the foot 4 is pulled down to pull the connecting block 11 out of the connecting groove 23, thus completing the disassembly of the foot 4. This allows for quick replacement of the foot 4 without replacing the entire base 1, saving costs. When installing a new foot 4, the same principle applies: the connecting block 11 is inserted into the connecting groove 23, and the screw 20 is rotated clockwise. The screw 20 pushes the pressing block 22 to move. The inclined surface of the pressing block 22 fits against the inclined surface of the push block 16. The pressing block 22 pushes the push block 16 to move to the side of the connecting block 11. The push block 16 pushes the locking block 17 into the slot 12 through the slide plate 14, completing the installation and fixing of the foot 4. The operation is simple and quick.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A bottom-to-base connection structure for a bulk container, comprising a base (1), a ton container (2), and a frame (3), characterized in that, The base (1) has several connecting grooves (23) on its bottom surface. A connecting block (11) is installed in the connecting groove (23). A foot (4) is fixedly connected to the bottom surface of the connecting block (11). A slot (12) is opened on one side of the connecting block (11). A sliding groove (13), a connecting groove (21), and a strip groove (20) are opened inside the base (1). A sliding plate (14) is installed in the sliding groove (13). A locking block (17) is fixedly connected to one surface of the sliding plate (14). A second spring (18) is installed on the periphery of the locking block (17). A connecting rod (15) is fixedly connected to the other surface of the sliding plate (14). A push block (16) is fixedly connected to one end of the connecting rod (15). A slot is opened on both the front and rear surfaces of the base (1). A screw sleeve is fixedly installed in the slot. A lead screw (19) is installed in the screw sleeve. A pressing block (22) is connected to one end of the lead screw (19).

2. The connection structure between the bottom feet and the base of a bulk container according to claim 1, characterized in that, The base (4) has several slots (9) on its periphery. A plug (10) is installed in the slot (9). A telescopic rod (8) is fixedly connected to one surface of the plug (10). A support rod (5) is installed on the periphery of the telescopic rod (8). A connecting plate (6) is fixedly connected in the support rod (5). A first spring (7) is fixedly connected to both sides of the connecting plate (6). One end of the first spring (7) is fixedly connected to the telescopic rod (8).

3. The connection structure between the bottom feet and the base of a bulk container according to claim 1, characterized in that, One end of the card block (17) is installed in the card slot (12), and the card block (17) and the card slot (12) slide together.

4. The connection structure between the bottom feet and the base of a bulk container according to claim 1, characterized in that, The slide plate (14) is in sliding engagement with the slide groove (13), and the extrusion block (22) is in sliding engagement with the strip groove (20).

5. The connection structure between the bottom feet and the base of a bulk container according to claim 1, characterized in that, The extrusion block (22) and the push block (16) are identical in size and shape.

6. The connection structure between the bottom feet and the base of a bulk container according to claim 1, characterized in that, The lead screw (19) is threadedly engaged with the screw sleeve, and the push block (16) is slidably engaged with the connecting groove (21).

7. The connection structure between the bottom feet and the base of a bulk container according to claim 2, characterized in that, The insert (10) is slidably engaged with the slot (9), and the telescopic rod (8) is slidably engaged with the support rod (5).