A foldable container profile structure

Abstract

This utility model discloses a foldable container profile structure, including an upper profile and a lower profile. The bottom of the upper profile has an upwardly bulging sealing groove, and the top of the lower profile has an upwardly bulging sealing protrusion. The sealing protrusion and the sealing groove are opposite to each other. At least two sealing grooves are provided on the lower profile, distributed on both sides of the sealing protrusion. A sealing strip is provided within the sealing groove so that when the upper profile is fastened onto the lower profile, the sealing strip seals the mating surface between the upper and lower profiles. This utility model prevents external air from entering the container by sealing the gap between the upper and lower profiles with a sealing strip. A locking mechanism is also provided to lock the upper and lower profiles, ensuring stable locking of the upper and lower side panels and preventing damage to the internal structure and personnel from sudden loss of stability.

Description

Technical Field

[0001] This utility model relates to the field of profile structure technology, specifically to a profile structure for foldable containers. Background Technology

[0002] A collapsible container is a logistics vehicle with compressible volume. By folding the side walls, end walls, and top, the height of the empty container is reduced during return transport, significantly lowering transportation costs. It employs a hinged structure for the side walls, end walls, and top, and a balancing system enables rapid manual folding.

[0003] Chinese Patent Publication No. CN212333532U discloses a foldable container-specific profile, the structure of which includes an upper frame plate, a lower frame plate, an upper side plate, and a lower side plate. The top of the upper side plate is movably hinged to the upper frame plate through a connecting component, and the bottom of the lower side plate is movably hinged to the lower frame plate through a connecting component. A profile connecting component for sealing, waterproofing, and windproofing is connected between the upper side plate and the lower side plate. The profile connecting component includes an upper profile, a lower profile, and connecting components of different shapes and sizes.

[0004] In this type of profile disclosed, the gaps are blocked by circular protrusions on the upper and lower profiles, making it difficult for external rainwater and debris to enter the interior. However, gaps still exist between the upper and lower profiles, allowing external air to flow into the interior and easily contaminating the contents. Furthermore, after the end panels at both ends of the container are folded, the top panel loses the stable support provided by the end panels, and the hinge position between the upper and lower side panels is prone to instability. This can easily lead to folding without being fully and accurately completed, causing the upper top panel to collapse and injuring the contents or personnel inside. Utility Model Content

[0005] The purpose of this invention is to solve the technical problems of existing folding container side panel profiles that cannot effectively block and seal gas, and are prone to instability during use, leading to folding when not fully prepared. This invention provides a folding container profile structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A folding container profile structure includes an upper profile and a lower profile. The upper profile is fixed to the bottom of an upper side panel, and the lower profile is fixed to the top of a lower side panel. The upper and lower profiles are hinged together. The bottom of the upper profile has an upwardly bulging sealing groove, and the top of the lower profile has an upwardly bulging sealing protrusion. The sealing protrusion is opposite to the sealing groove. The lower profile has at least two sealing grooves distributed on both sides of the sealing protrusion. A sealing strip is provided in the sealing groove so that when the upper profile is fastened to the lower profile, the sealing strip seals the mating surface between the upper and lower profiles.

[0008] Furthermore, the sealing groove includes an upper opening and a lower groove bottom. The width of the upper opening is smaller than the width of the lower groove bottom. The width of the sealing strip is greater than the width of the upper opening, and the width of the sealing strip is smaller than the width of the lower groove bottom.

[0009] Furthermore, the height of the sealing strip is greater than the depth of the sealing groove.

[0010] Furthermore, an accommodating gap is formed between the sidewall of the sealing groove and the sealing strip.

[0011] Furthermore, a hinge is installed on the same side of the upper profile and the lower profile, with one of the hinge blades fixed to the upper profile and the other blade fixed to the lower profile.

[0012] Furthermore, a locking mechanism is installed on the side of the upper profile. The locking mechanism is located on the side of the upper profile away from the hinge and near both ends of the upper profile. The locking mechanism is used to lock the upper profile and the lower profile together.

[0013] Furthermore, the locking mechanism includes a locking pin, a fixed plate, and a movable plate. The locking pin is fixed to the side of the upper profile, the fixed plate is fixed to the side of the lower profile, and the movable plate has a C-shaped structure. The bottom side of the movable plate is hinged to the lower profile. A rectangular locking groove is formed on the middle of the movable plate facing the fixed plate, and a guide wedge surface is formed on the upper end of the movable plate. A tension spring is provided between the fixed plate and the movable plate. The tension spring provides elastic force so that the upper end of the movable plate abuts against the fixed plate. The locking pin and the guide wedge surface are arranged opposite each other. When the upper profile and the lower profile are close together, the locking pin abuts against the guide wedge surface, pushing the movable plate away from the fixed plate so that the locking pin is pressed into the locking groove.

[0014] Furthermore, a lever for actuating the movable plate is fixedly connected to the movable plate, and the lever is fixed to one side of the movable plate; the hook point between the tension spring and the fixed plate is the first connection point, the hook point between the tension spring and the movable plate is the second connection point, the hinge point between the movable plate and the lower profile is the hinge point, and the second connection point moves from above the line connecting the first connection point and the hinge point to below the line when the movable plate rotates; the fixed plate extends to a position below the hinge point to limit the movement of the movable plate.

[0015] Furthermore, the sealing groove is configured as one or more combinations of arc, triangle or trapezoid, and the sealing protrusion is configured to match the sealing groove.

[0016] In another embodiment, an upper profile and a lower profile are included. The upper profile is used to fix the bottom of the upper side panel, and the lower profile is used to fix the top of the lower side panel. The upper profile and the lower profile are hinged together. The bottom end face of the upper profile is provided with a first stepped surface, and the bottom of the lower profile is provided with a second stepped surface that matches the first stepped surface. A sealing groove is provided on the lower profile. At least two sealing grooves are provided and distributed on both sides of the step of the second stepped surface. A sealing strip is provided in the sealing groove so that when the upper profile is fastened to the lower profile, the sealing strip seals the mating surface between the upper profile and the lower profile.

[0017] The foldable container profile structure provided by this utility model has the following beneficial effects: by adding a sealing strip to seal the gap between the upper and lower profiles, external air is prevented from entering the container and causing gas pollution inside the container; by setting a locking mechanism to lock the upper and lower profiles, the upper and lower side panels remain locked and stable after the end panels at both ends of the container are folded, avoiding sudden loss of stability and damage to the internal structure and personnel; by releasing the locking mechanism, the upper and lower side panels can be folded to compress the container volume as a whole, making the folding operation convenient. Attached Figure Description

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings:

[0019] Figure 1 A structural schematic diagram of a foldable container profile structure provided by this utility model;

[0020] Figure 2 A schematic diagram of the end structure of a foldable container profile structure provided by this utility model;

[0021] Figure 3 A partial structural diagram of the sealing groove in a folding container profile structure provided by this utility model;

[0022] Figure 4 This is a schematic diagram of the end of a foldable container profile structure according to another embodiment of the present invention;

[0023] Figure 5 for Figure 4 A schematic diagram of the left-side structure of the central locking mechanism;

[0024] Figure 6 This is a schematic diagram of the movable plate in the locking mechanism of this utility model in the open state;

[0025] Figure 7 A schematic diagram of a frame for a foldable container profile structure provided by this utility model, used in a foldable container;

[0026] Figure 8 A schematic diagram of the end structure of a triangular sealing groove in a folding container profile structure provided by this utility model;

[0027] Figure 9 A schematic diagram of the end structure of a folding container profile structure in which the sealing groove is trapezoidal;

[0028] Figure 10 This utility model provides a structural diagram of a foldable container profile structure in which the lower end of the upper profile has a stepped surface.

[0029] The following are the labels in the diagram: 1. Upper profile; 11. Sealing groove; 2. Lower profile; 21. Sealing protrusion; 22. Sealing groove; 221. Gap accommodator; 3. Sealing strip; 4. Hinge; 5. Locking mechanism; 51. Locking pin; 52. Fixed plate; 53. Movable plate; 531. Locking groove; 532. Guide wedge surface; 54. Tension spring; 55. Pulley; A1. First connection point; A2. Second connection point; A3. Hinge point; 6. Upper side plate; 7. Lower side plate; 8. Top plate; 9. Bottom plate. Detailed Implementation

[0030] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0031] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0033] like Figures 1-3 As shown, in one embodiment, a profile structure for a folding container includes an upper profile 1 and a lower profile 2. The upper profile 1 is fixed to the bottom of an upper side panel 6, and the lower profile 2 is fixed to the top of a lower side panel 7. The upper profile 1 and the lower profile 2 are hinged together, allowing the upper side panel 6 and the lower side panel 7 to be folded to form a folding side panel of a folding container. The bottom of the upper profile 1 is provided with an upwardly bulging sealing groove 11, and the top of the lower profile 2 is provided with... An upwardly bulging sealing protrusion 21 is provided, which is opposite to the sealing groove 11 so that when the upper profile 1 and the lower profile 2 are fastened together, the sealing groove 11 is fastened to the sealing protrusion 21. The lower profile 2 is provided with a sealing groove 22, which is provided at least in two places and distributed on both sides of the sealing protrusion 21. A sealing strip 3 is provided in the sealing groove 22 so that when the upper profile 1 is fastened to the lower profile 2, the sealing strip 3 seals the mating surface between the upper profile 1 and the lower profile 2.

[0034] Through the above technical solution, matching sealing grooves 11 and sealing protrusions 21 are provided on the upper profile 1 and the lower profile 2, so that the sealing grooves 11 and sealing protrusions 21 can be matched and positioned during assembly, and external rainwater and debris can be prevented from entering the container. Sealing grooves 22 and sealing strips 3 are provided on both sides of the sealing protrusion 21 to cooperate, and the sealing strips 3 seal the gap between the upper profile 1 and the lower profile 2, preventing external air from entering the container. Sealing strips 3 are provided on both sides of the sealing protrusion 21, which provides multi-layer protection for the gap, and at the same time, can keep the upper profile 1 and the lower profile 2 balanced, and prevent the upper profile 1 from tilting due to uneven force on the bottom surface of the upper profile 1 supported by a single sealing strip 3, thereby improving structural stability.

[0035] Specifically, the sealing groove 22 includes an upper opening and a lower groove bottom. The width of the upper opening is smaller than the width of the lower groove bottom. The width of the sealing strip 3 is greater than the width of the upper opening, and the width of the sealing strip 3 is smaller than the width of the lower groove bottom. The sealing strip 3 is narrower than the upper opening, which makes it easier for the sealing strip 3 to stay firmly in place within the sealing groove 22 and prevents it from falling out.

[0036] Specifically, the height of the sealing strip 3 is greater than the depth of the sealing groove 22. The upper end of the sealing strip 3 protrudes from the upper end of the lower profile 2, thereby causing the upper end of the sealing strip 3 to be pressed and sealed against the bottom surface of the upper profile 1.

[0037] Specifically, a receiving gap 221 is formed between the side wall of the sealing groove 22 and the sealing strip 3. After the sealing strip 3 is compressed, its width increases, and the receiving gap 221 accommodates the lateral deformation of the sealing strip 3 after compression.

[0038] Specifically, a hinge 4 is installed on the same side of the upper profile 1 and the lower profile 2. One of the blades of the hinge 4 is fixed on the upper profile 1, and the other blade is fixed on the lower profile 2, thereby realizing the hinged connection between the upper profile 1 and the lower profile 2, making it convenient for the upper profile 1 and the lower profile 2 to be folded.

[0039] In another embodiment, such as Figures 4-6 As shown, a locking mechanism 5 is installed on the side of the upper profile 1. The locking mechanism 5 is located on the side of the upper profile 1 away from the hinge 4 and near both ends of the upper profile 1. The locking mechanism 5 is used to lock the upper profile 1 and the lower profile 2. It is located near the end for easy operation to release the locking mechanism 5 from the locked state.

[0040] Specifically, the locking mechanism 5 includes a locking pin 51, a fixed plate 52, and a movable plate 53. The locking pin 51 is fixed to the side of the upper profile 1, the fixed plate 52 is fixed to the side of the lower profile 2, and the movable plate 53 has a C-shaped structure. The bottom side of the movable plate 53 is hinged to the lower profile 2. A rectangular locking groove 531 is provided on the side of the movable plate 53 facing the fixed plate 52. A guide wedge surface 532 is provided on the upper end of the movable plate 53. A tension spring 54 is provided between the fixed plate 52 and the movable plate 53. The tension spring 54 provides elastic force so that the upper side of the movable plate 53 abuts against the fixed plate 52. The locking pin 51 and the guide wedge surface 532 are arranged opposite each other. When the upper profile 1 and the lower profile 2 are close together, the locking pin 51 abuts against the guide wedge surface 532, pushing the movable plate 53 away from the fixed plate 52 so that the locking pin 51 is pressed into the locking groove 531. When the upper profile 1 and the lower profile 2 are fastened together, the locking pin is pressed into the locking groove 531, which limits the locking pin within the locking groove 531 of the movable plate 53, thereby locking the upper profile 1 and the lower profile 2 together and maintaining structural stability. When it is necessary to fold the upper side plate 6 on the upper profile 1 and the lower side plate 7 on the lower profile 2, the movable plate 53 is rotated to release the locking pin 51, making folding convenient.

[0041] Specifically, a lever 55 for actuating the movable plate 53 is fixedly connected to the movable plate 53, and the lever 55 is fixed to one side of the movable plate 53; the hook point between the tension spring 54 and the fixed plate 52 is the first connection point A1, the hook point between the tension spring 54 and the movable plate 53 is the second connection point A2, and the hinge point between the movable plate 53 and the lower profile 2 is the hinge point A3. The second connection point A2 moves from above the line connecting the first connection point A1 and the hinge point A3 to below the line when the movable plate 53 rotates; the fixed plate 52 extends to a position below the hinge point A3 to limit the movement of the movable plate 53. As the movable plate 53 rotates, it drives the second connection point A2 to rotate from above the connection line to below, causing the pull rope spring to first lengthen and then shorten during the rotation, so that the movable plate 53 remains in the open state with the fixed plate 52 after rotation; under the action of external force, the movable plate 53 is rotated upward, causing the tension spring 54 to pass the critical point and drive the movable plate 53 to automatically rebound and restore the upper side wall to fit against the fixed plate 52.

[0042] It should be noted that the upper profile 1 and the lower profile 2 can be formed by extruding and welding steel plates, or by extruding steel or aluminum alloy materials.

[0043] In one embodiment, such as Figure 2 As shown, the sealing groove 11 is configured as an arc shape, and the sealing protrusion 21 is configured as an arc shape that matches the sealing groove 11.

[0044] In another embodiment, such as Figure 8 As shown, the sealing groove 11 is configured as a triangle, and the sealing protrusion 21 is configured as a triangle that matches the sealing groove 11.

[0045] In another embodiment, such as Figure 9 As shown, the sealing groove 11 is configured as a trapezoid, and the sealing protrusion 21 is configured as a trapezoid that matches the sealing groove 11.

[0046] In another embodiment, such as Figure 10 As shown, a foldable container profile structure includes an upper profile 1 and a lower profile 2. The upper profile 1 is fixed to the bottom of an upper side panel 6, and the lower profile 2 is fixed to the top of a lower side panel 7. The upper profile 1 and the lower profile 2 are hinged together. The bottom end face of the upper profile 1 is provided with a first stepped surface, and the bottom of the lower profile 2 is provided with a second stepped surface that matches the first stepped surface. A sealing groove 22 is provided on the lower profile 2. The sealing groove 22 is provided in at least two locations and is distributed on both sides of the step of the second stepped surface. A sealing strip 3 is provided in the sealing groove 22 so that when the upper profile 1 is fastened to the lower profile 2, the sealing strip 3 seals the mating surface between the upper profile 1 and the lower profile 2.

[0047] When using, such as Figure 7 As shown, the upper profile 1 is fixed to the bottom of the upper side panel 6, and the lower profile 2 is fixed to the top of the lower side panel 7. The upper profile 1 and the lower profile 2 are hinged to enable the upper side panel 6 and the lower side panel 7 to be folded together. The upper side panel 6 and the lower side panel 7 are arranged symmetrically in pairs on the bottom panel 9, and the lower side panels 7 on both sides of the bottom panel 9 are hinged to the bottom panel 9. The upper end of the upper side panel 6 is hinged to the top panel 8. By folding, the upper side panel 6 and the lower side panel 7 can be folded between the top panel 8 and the bottom panel 9 to compress the volume. After the upper side panel 6 and the lower side panel 7 are extended, they form upright side panels to support the top panel 8. The two ends of the bottom panel 9 are then flipped to connect to the end panels, which support both ends, thus forming a cubic container structure.

[0048] The parts not covered in this technical solution can be implemented using existing technologies.

[0049] The foregoing has shown and described the basic principles, main features, and characteristics of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model includes the appended claims and their equivalents.

Claims

1. A profile structure for a folding container, characterized in that: The device includes an upper profile (1) and a lower profile (2). The upper profile (1) is fixed to the bottom of the upper side plate (6), and the lower profile (2) is fixed to the top of the lower side plate (7). The upper profile (1) and the lower profile (2) are hinged together. The bottom of the upper profile (1) is provided with an upwardly bulging sealing groove (11), and the top of the lower profile (2) is provided with an upwardly bulging sealing protrusion (21). The sealing protrusion (21) is opposite to the sealing groove (11). The lower profile (2) is provided with a sealing groove (22). The sealing groove (22) is provided in at least two places and is distributed on both sides of the sealing protrusion (21). A sealing strip (3) is provided in the sealing groove (22) so that when the upper profile (1) is fastened to the lower profile (2), the sealing strip (3) seals the mating surface between the upper profile (1) and the lower profile (2).

2. A profile structure for a folding container according to claim 1, characterized in that: The sealing groove (22) includes an upper opening and a lower groove bottom. The width of the upper opening is smaller than the width of the lower groove bottom. The width of the sealing strip (3) is larger than the width of the upper opening, and the width of the sealing strip (3) is smaller than the width of the lower groove bottom.

3. A profile structure for a folding container according to claim 2, characterized in that: The height of the sealing strip (3) is greater than the depth of the sealing groove (22).

4. A profile structure for a folding container according to claim 2, characterized in that: A receiving gap (221) is formed between the side wall of the sealing groove (22) and the sealing strip (3).

5. A profile structure for a folding container according to any one of claims 1-4, characterized in that: A hinge (4) is installed on the same side of the upper profile (1) and the lower profile (2). One of the blades of the hinge (4) is fixed on the upper profile (1), and the other blade of the hinge (4) is fixed on the lower profile (2).

6. A profile structure for a folding container according to claim 5, characterized in that: A locking mechanism (5) is installed on the side of the upper profile (1). The locking mechanism (5) is located on the side of the upper profile (1) away from the hinge and near both ends of the upper profile (1). The locking mechanism (5) is used to lock the upper profile (1) and the lower profile (2).

7. A profile structure for a folding container according to claim 6, characterized in that: The locking mechanism (5) includes a locking pin (51), a fixed plate (52), and a movable plate (53). The locking pin (51) is fixed to the side of the upper profile (1), the fixed plate (52) is fixed to the side of the lower profile (2), and the movable plate (53) has a C-shaped structure. The bottom side of the movable plate (53) is hinged to the lower profile (2). A rectangular locking groove (531) is provided on the side of the movable plate (53) facing the fixed plate (52), and a guide wedge surface is provided on the upper end of the movable plate (53). (532) A tension spring (54) is provided between the fixed plate (52) and the movable plate (53). The tension spring (54) provides elastic force so that the upper side of the movable plate (53) abuts against the fixed plate (52). The locking pin (51) is arranged opposite to the guide wedge surface (532). When the upper profile (1) and the lower profile (2) are close, the locking pin (51) abuts against the guide wedge surface (532) to push the movable plate (53) away from the fixed plate (52) so that the locking pin (51) is pressed into the locking groove (531).

8. A profile structure for a folding container according to claim 7, characterized in that: A lever (55) for actuating the movable plate (53) is fixedly connected to the movable plate (53), and the lever (55) is fixed to one side of the movable plate (53); the hook point between the tension spring (54) and the fixed plate (52) is the first connection point (A1), the hook point between the tension spring (54) and the movable plate (53) is the second connection point (A2), the hinge point between the movable plate (53) and the lower profile (2) is the hinge point (A3), and the second connection point (A2) moves from above the line connecting the first connection point (A1) and the hinge point (A3) to below the line when the movable plate (53) rotates; the fixed plate (52) extends to a position below the hinge point (A3) to limit the movable plate (53).

9. A profile structure for a folding container according to claim 1, characterized in that: The sealing groove (11) is configured as one or more combinations of arc, triangle or trapezoid, and the sealing protrusion (21) is configured to match the sealing groove (11).

10. A profile structure for a folding container, characterized by The device includes an upper profile (1) and a lower profile (2). The upper profile (1) is used to fix the bottom of the upper side plate (6), and the lower profile (2) is used to fix the top of the lower side plate (7). The upper profile (1) and the lower profile (2) are hinged together. The bottom end face of the upper profile (1) is provided with a first step surface, and the bottom of the lower profile (2) is provided with a second step surface that matches the first step surface. A sealing groove (22) is provided on the lower profile (2). The sealing groove (22) is provided at least in two places and is distributed on both sides of the step of the second step surface. A sealing strip (3) is provided in the sealing groove (22) so that when the upper profile (1) is fastened to the lower profile (2), the sealing strip (3) seals the upper profile (1) and the lower profile (2).

Images