Foldable storage bag frame, storage bag and pushcart

Abstract

To provide a foldable storage bag frame, a storage bag including the foldable storage bag frame, and a handcart using the storage bag, which are easy to operate and use and effectively reduce the space occupied when storing or transporting the storage bag on the premise of maintaining good structural stability of the storage bag. [Solution] The storage bag framework includes a base frame, side frames, and a fixed frame. A U-shaped fixed plate is attached to the long base frame tube of the base frame. An upward-facing slot is formed in the U-shaped fixed plate. The fixed frame is inserted into the U-shaped fixed plate by bending structures at the bottom corner positions on both sides and is hingedly connected to the base frame. A hinge member for opening and closing / rotating the side frame is fitted into the long side frame tube at the bottom of the side frame. The hinge member for opening and rotating the side frame is connected to the long base frame tube of the base frame, hinge-connecting the side frame to the base frame. A side locking section is provided between the adjacent short side frame tube and side tube of the fixed frame on the side frame and the fixed frame, and the side locking section locks the side frame to the fixed frame.

Description

[Technical Field]

[0001] The present invention relates to a storage bag, and more particularly to a foldable storage bag framework, a storage bag, and a pushcart using the foldable storage bag. [Background technology]

[0002] Currently, most of the storage bags on the market with good support properties are one-piece molded, which can meet the need for large-capacity use, but they have the disadvantage of not being able to be folded for storage. The non-foldable structure not only occupies a large amount of space during transportation and increases logistics costs, but also means that when the storage bag is not in use, it still occupies almost the same amount of space as when it is in use, which causes great inconvenience when storing it at home or in a warehouse. To solve the above problem of not being able to be folded, foldable storage bags that are assembled with fasteners such as screws are currently available on the market, but storage bags that rely on screw fastening and unfastening have the disadvantage of being inconvenient to assemble and use and requiring cumbersome operation. Summary of the Invention

[0003] SUMMARY OF THE INVENTION In order to solve the drawbacks of the above-mentioned technologies, the present invention provides a foldable storage bag framework, a storage bag, and a pushcart.

[0004] In order to solve the above technical problems, the technical solution of the present invention is a foldable storage bag frame, which includes a base frame, side frames arranged on both long sides of the base frame, and fixing frames arranged on both short sides of the base frame, A U-shaped fixing plate is attached to the base frame long tube of the base frame, and an upwardly facing slot is formed in the U-shaped fixing plate. The fixing frame is inserted into the U-shaped fixing plate by bending structures at the bottom corner positions on both sides, and is hingedly connected to the base frame; A hinge member for opening and closing the side frame is fitted to the long side frame tube at the bottom of the side frame, and the hinge member for opening and closing the side frame is connected to the long base frame tube of the base frame, thereby hinge-connecting the side frame and the base frame; A side locking section is provided between the adjacent short tube of the side frame and the side tube of the fixed frame in the side frame and the fixed frame, and the side frame and the fixed frame are locked together by the side locking section, in this foldable storage bag framework.

[0005] Preferably, a positioning ring is attached to the side frame short pipe of the side frame, and the side locking part is hingedly connected to the side frame short pipe by the positioning ring; The side locking portion is formed with a projection groove for engagement that fits into the side pipe of the fixed frame.

[0006] Preferably, a stopper block is attached to the fixed frame side pipe of the fixed frame for positioning by contacting the side frame.

[0007] Preferably, the long side frame tubes and the short side frame tubes of the side frames are assembled and connected at adjacent end positions by a single bend joint, The horizontal pipe and the side pipe of the fixed frame are assembled and connected at the adjacent end positions by a double bend joint; The long base frame tube and the short base frame tube of the base frame are assembled and connected at adjacent end positions by a single bend joint.

[0008] Preferably, a reinforcing horizontal pipe is provided inside the frame body of the base frame, and the reinforcing horizontal pipe is connected to the frame body of the base frame via horizontal sleeves on both ends.

[0009] Preferably, a positioning post is attached to the base frame short tube of the base frame, and a positioning pad is attached to the base frame long tube of the base frame.

[0010] The foldable storage bag includes a foldable storage bag frame, and the foldable storage bag further includes side cloths attached to the side frames, a fixing cloth attached to the fixing frame, and a bottom cloth attached to the base frame.

[0011] Preferably, the side fabrics, the fixing fabric and the bottom fabric are all provided with hook-and-loop fasteners.

[0012] The stroller includes a collapsible storage bag, and the collapsible storage bag is disposed on the carrier frame of the stroller.

[0013] Preferably, the bed frame is provided with positioning holes that fit the positioning posts, and the bed frame is further provided with locking buckles that fit the positioning pads.

[0014] The present invention discloses a foldable storage bag frame, a storage bag including the foldable storage bag frame, and a pushcart using the storage bag. Based on the foldable storage frame structure, by opening and closing the side locking parts and folding back the side frames and fixing frame, it can be conveniently folded for storage or unfolded for use. Compared to detachable structures such as screws, the present invention has the advantage of being easy to operate and use, while maintaining good structural stability of the storage bag. It also effectively reduces the space taken up by the storage bag when storing or transporting, and is expected to be well received in the market. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a schematic diagram of the disassembled foldable storage bag of the present invention; [Figure 2] 1 is a schematic diagram of the entire assembled state of the storage bag of the present invention; [Figure 3] FIG. 2 is a schematic diagram of a side frame in FIG. 1. [Figure 4] FIG. 2 is a schematic diagram of a fixed frame in FIG. [Figure 5] FIG. 2 is a schematic configuration diagram of a base frame in FIG. [Figure 6] 4 is a schematic view of the side locking portion of the present invention in a locked state; FIG. [Figure 7] 4 is a schematic view of the side locking portion of the present invention in an unlocked state; FIG. [Figure 8] 1A-1C are schematic diagrams of the foldable storage bag frame of the present invention in the retracted, half-open, and open states. [Figure 9] 1 is a schematic diagram of a process for using the foldable storage bag of the present invention; [Figure 10] 1 is a schematic diagram of the pushcart of the present invention; [Figure 11] 3 is a schematic view of the present invention when the locking buckle and the foldable storage bag are locked. [Figure 12] 3 is a schematic view of the pushcart of the present invention when the locking buckle and the foldable storage bag are unlocked; FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] The present invention will now be described in more detail with reference to the drawings and specific embodiments.

[0017] Example 1 This embodiment discloses a foldable storage bag frame. As shown in Fig. 1 and Fig. 8, the frame structure mainly includes three parts: a side frame 1, a fixed frame 2 and a base frame 3. Among them, the base frame 3 is the bottom support part, there are two sets of side frames 1, which are symmetrically distributed on both long sides of the base frame 3, and there are two sets of fixed frames 2, which are symmetrically distributed on both short sides of the base frame 3. The base frame 3, side frames 1 and fixed frames 2 distributed in the above positions together constitute the main structural part of the foldable storage bag framework.

[0018] Hereinafter, the specific configurations of the three structural parts of the foldable storage bag framework of this embodiment will be described in detail with reference to FIGS.

[0019] First, as shown in FIG. 3, the entire frame of the side frame 1 is designed to be disassembled, and includes short side frame tubes 16 on both sides and long side frame tubes 12 on the top and bottom. The long side frame tubes 12 and the short side frame tubes 16 are assembled and connected at their adjacent end positions by single bend joints 13. Next, the single bend joints 13 and the corresponding frame tubes are riveted and fixed at pre-set holes, thereby forming the entire frame of the side frame 1. A hinge member 17 for rotating the side frame when it is opened and closed is fitted to the long side frame tube 12 located at the bottom of the side frame 1, and is further connected to the long base frame tube 37 of the base frame 3 by the hinge member 17 for rotating the side frame when it is opened and closed. Mounting holes are provided in advance in the hinge member 17 for rotating the side frame when it is opened and closed and the long base frame tube 37, and rivets 4 are crimped and fixed into the mounting holes. By providing the hinge member 17 for rotating the side frame when it is opened and closed, the side frame 1 and the base frame 3 are hingedly connected, and the side frame 1 can be rotated relative to the base frame 3 to realize the need for folding or opening / closing.

[0020] Furthermore, side locking parts 14 are hingedly connected to the side frame short tubes 16 on both sides of the side frame by positioning rings 15, and after both the positioning rings 15 and the side locking parts 14 are attached to the side frame short tubes 16 and set in place, the positioning rings 15 and the side frame short tubes 16 can be fixedly connected with rivets.

[0021] 6 and 7, the side locking parts 14 are also formed with engaging protrusion grooves that fit the fixed frame side tubes 24 of the fixed frame 2, and the side locking parts 14 are mounted using a positioning ring 15, allowing the side locking parts 14 to complete their rotation, and the engaging protrusion grooves fit into the fixed frame side tubes 24 to form an engaging lock structure. As can be seen from this, the side locking parts 14 distributed between the adjacent side frame short tubes 16 and fixed frame side tubes 24 of the side frame 1 and fixed frame 2 allow for lock adjustment when the side frame 1 and fixed frame 2 are in the open or retracted state.

[0022] Next, as shown in Figure 4, the entire frame of the fixed frame 2 is also designed to be disassembled, and includes fixed frame side pipes 24 at both sides and fixed frame horizontal pipes 22 at the top and bottom, and the fixed frame horizontal pipes 22 and fixed frame side pipes 24 of the fixed frame 2 are assembled and connected at adjacent end positions by double bend joints 23. Similarly, the double bend joints 23 and the corresponding frame pipes are riveted and fixed at the positions of pre-set holes, thereby forming the entire frame of the fixed frame 1. In the fixed frame 2, the fixed frame side tube 24 and the fixed frame horizontal tube 22 are assembled and connected using a double bend joint 23, forming a structural form with a stepped height, thereby satisfying the storage of structures such as the protruding side locking part 14 when the foldable storage bag framework is stored.

[0023] Furthermore, since the side frame 1 is distributed between the two fixed frames 2, it does not affect the sequential storage operation of the side frame 1 and the fixed frame 2.

[0024] Furthermore, a stopper block 25 is attached to the fixed frame side tube 24 of the fixed frame 2, which abuts against the side frame 1 to position it, and a recessed groove is formed in the stopper block 25 to fit the frame tube of the side frame 1. As can be seen from the open state diagram in Figure 8, when the foldable storage bag framework is in the open state, the stopper block 25 abuts against the short side frame tube 16 of the side frame 1 to position it and prevent it from opening too much, and as can be seen from the stored state diagram in Figure 8, when the foldable storage bag framework is in the stored state, the stopper block 25 abuts against the long side frame tube 12 of the side frame 1 to position it and ensure good storage.

[0025] 5, the entire frame of the base frame 3 is also designed to be disassembled, and includes base frame short pipes 34 at the front and rear positions and base frame long pipes 37 at both sides, and the base frame long pipes 37 and base frame short pipes 34 of the base frame 3 are assembled and connected at adjacent end positions by single bend joints 13 (with the same structure as the single bend joints 13 of the side frames 1). Similarly, the single bend joints 13 and the corresponding frame pipes are riveted and fixed at the positions of pre-made holes, thereby forming the frames on the four sides of the base frame.

[0026] Preferably, a reinforcing horizontal pipe 38 is provided inside the frame body of the base frame 3, and the reinforcing horizontal pipe 38 is fitted to the base frame 3 via horizontal sleeves 36 at both ends, and the reinforcing horizontal pipe 38 and the base frame 3 are assembled by inserting rivets into pre-drilled holes and crimping them. A plurality of sets of reinforcing horizontal pipes 38 may be arranged at intervals to increase the structural strength and supportability of the base frame 3.

[0027] U-shaped fixing plates 32 are attached to the base frame long tube 37 of the base frame 3 with rivets 4, and the U-shaped fixing plates 32 are distributed at positions close to both ends of the base frame long tube 37 to match the positional characteristics of the side frame 1 being distributed between the two fixing frames 2.

[0028] An upward-facing slot is formed in the U-shaped fixing plate 32, and the folded structure formed by connecting the double-bend joints 23 at the two bottom corner positions of the fixing frame 2 and the fixing frame side tube 24 is inserted into the U-shaped fixing plate 32.Furthermore, the fixing frame 2 and the base frame 3 are assembled and connected by inserting rivets 4 into mounting holes pre-provided in the U-shaped fixing plate 32 and the fixing frame side tube 24.

[0029] The U-shaped fixed plate 32 has an open slot structure and is hingedly connected to the fixed frame side tube 24, so that the fixed frame 2 can rotate relative to the base frame 3 and meet the needs of folding or opening / closing.

[0030] The rivet mounting holes in the U-shaped fixing plate 32 are provided in advance at a position close to the top of the U-shaped fixing plate 32, and this configuration allows the fixing frame 2 to be raised when folded and stored, thereby meeting the need for folding and storage with the fixing frame 2 on the upper side and the side frame 1 on the lower side.

[0031] In addition, a positioning post 33 is further attached to the base frame short tube 34 of the base frame 3, and a positioning pad 35 is further attached to the base frame long tube 37 of the base frame 3. The positioning post 33 corresponds to the positioning hole on the pushcart, facilitating quick installation and positioning, and the positioning pad 35 corresponds to the locking buckle 5 on the pushcart, facilitating detachable installation.

[0032] As can be seen from the above, the specific structural assembly operations of the foldable storage bag framework disclosed in this embodiment include:

[0033] 1) About Base Frame 3 1.1. After attaching the horizontal tube sleeve 36 to the base frame long tube 37 and moving it to the mounting hole, insert the rivet 4 and crimp it to fix it. 1.2. After attaching the positioning pad 35 to the base frame long tube 37 and moving it to the mounting hole, insert the rivet 4 and caulk it to fix it. 1.3. After attaching one end of the single bend joint 13 and the U-shaped fixing plate 32 to the base frame long pipe 37, insert the rivet 4 into the mounting hole and caulk it to fix it. 1.4. After the positioning column 33 is attached to the mounting hole position of the base frame short pipe 34, the rivet 4 is inserted and caulked to fix it. 1.5. Both ends of the reinforcing horizontal pipe 38 are attached to the horizontal pipe sleeve 36, both ends of the base frame short pipe 34 are attached to the other end of the single bend joint 13, and the rivets 4 are inserted into the mounting holes of the frame pipe and the joint, and then crimped and fixed. This completes the assembly of the base frame.

[0034] 2) Regarding fixed frame 2 2.1. The stopper block 25 is attached to the side tube 24 of the fixed frame, and after moving it to the mounting hole, the rivet 4 is inserted and crimped to fix it. 2.2. After the frame is formed by connecting the horizontal tube 22 and the side tube 24 of the fixed frame with the double bend joint 23, the bent structures at the two bottom corners of the fixed frame 2 where the double bend joints 23 are located are inserted into the U-shaped fixed plate 32, and the rivets 4 are inserted into the mounting holes of the horizontal tube and the joint, and into the mounting holes of the side tube of the fixed frame, the joint and the U-shaped fixed plate 32, and then crimped and fixed; As a result, the fixed frame 2 is assembled to the base frame 3.

[0035] 3. Side frame 1 3.1. After attaching the positioning ring 15 and the side locking part 14 to the side frame short pipe 16 and moving them to the mounting hole, insert the rivet 4 at the position of the positioning ring 15 and crimp it to fix it. 3.2. After connecting the long side frame pipe 12 and the short side frame pipe 16 with a single bend joint 13 to form a frame, insert the rivet 4 into the mounting holes of the frame pipe and the joint and caulk and fix it. 3.3. The hinge member 17 for opening and closing the side frame and rotating it is fitted into the long tube 12 of the side frame at the bottom position, and the hinge member 17 for opening and closing the side frame and rotating it is moved to the mounting hole of the long tube 37 of the base frame 3, and then the rivet 4 is inserted and crimped to fix it.

[0036] As a result, the side frame 1 is assembled to the base frame 3.

[0037] The foldable storage bag framework of this embodiment obtained after the above assembly operation is, as shown in Figure 8, in a folded state, the side frame 1 is located below the fixed frame 2, and the two sets of side frames are stored vertically apart, and the two sets of fixed frames 2 are stored flat within the two sets of side frames. When it is necessary to use the bag, the fixed frame 2 is opened outward by 90° from the stored state to the open state, then the side frame 1 is opened outward by 90° and until it abuts against the stopper block 25, and then the side locking part 14 is rotated outward and inserted into the side frame short tube 16 to be fixed, thereby fixing the storage bag framework in a stable open state with the locking buckle.

[0038] Similarly, when changing from the open state to the stored state, the side locking parts 14 are rotated inward to release the locking action of the side frame short tubes 16, then the side frames 1 are folded inward so as to be parallel to the base frame 3, and finally the fixed frame 2 is folded inward so as to be parallel to the base frame 3, and the storage bag framework is stored by the hinge connection.

[0039] Example 2 This embodiment discloses a foldable storage bag, and according to the foldable storage bag frame disclosed in embodiment 1, as shown in Figures 1 and 2, side cloth 11 is attached to the side frame 1 of the storage bag frame, fixed cloth 21 is attached to the fixed frame 2, and bottom cloth 31 is attached to the base frame 3.

[0040] The side cloth 11, the fixing cloth 21, and the bottom cloth 31 have escape holes at the side edge positions to avoid the side locking parts 14, the stopper block 15, the hinge members 17 for opening and closing the side frames, and hook-and-loop fasteners are provided in other positions. The side cloth 11, the fixing cloth 21, and the bottom cloth 31 can be easily attached or removed by peeling off the hook-and-loop fasteners attached to the side cloth 11, the fixing cloth 21, and the bottom cloth 31 and then placing them over the corresponding side frames, fixing frames, and base frames, and then bonding and fastening them together.

[0041] FIG. 9 is a schematic diagram of a usage flowchart of the foldable storage bag from the closed state to the open state, and the usage principle is the same as that of the foldable storage bag framework of the first embodiment.

[0042] Step 1: Lay the storage bag flat with the opening facing up.

[0043] Step 2: Open the fixed frame 2 outward to 90°.

[0044] Step 3: Open the side frame 1 outward by 90° until it abuts against the stopper block 25. In this case, both the fixed frame 2 and the side frame 1 are perpendicular to the base frame 3.

[0045] Step 4: Rotate the side locking parts 14 outward and lock them into the side frame short tubes 16 to lock all four of the side locking parts 14 in place.

[0046] Step 5: Open the storage bag and use it.

[0047] To change the foldable storage bag from the open state to the stored state, the operation is reversed, but the side locking part 14 is rotated inward to release the locking action of the side frame short tube 16, then the side frame 1 is folded inward so as to be parallel to the base frame 3, and finally the fixed frame 2 is folded inward so as to be parallel to the base frame 3, and the storage bag is stored by the hinge connection.

[0048] Example 3 This embodiment discloses a pushcart, and as shown in FIG. 10, the foldable storage bag of the second embodiment is placed on the platform frame of the pushcart.

[0049] Based on the positioning pillars 33 provided on the base frame 3 of the foldable storage bag, the loading platform frame is provided with positioning holes that fit the positioning pillars 33, making it easy to quickly position and arrange the storage bag.

[0050] At the same time, as shown in Figures 11 and 12, a locking buckle 5 that fits the positioning pad 35 is further attached to the loading platform frame, and a locking buckle 5 is provided on both the left and right sides. When the locking buckle 5 is closed, it is locked and fixed with the positioning pad, thereby allowing the storage bag to be detachably attached to the stroller so that it can be removed and used separately.

[0051] As can be seen from the above, the foldable storage bag frame, the storage bag including the foldable storage bag frame, and the pushcart using the storage bag disclosed in this invention have the advantages of being easy to operate and use, provided that the storage bag maintains good structural stability. In addition, the foldability effectively reduces the space occupied by the storage bag when storing or transporting it, and is expected to be well-sought after in the market.

[0052] The above embodiments do not limit the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solutions of the present invention fall within the protection scope of the present invention. [Explanation of symbols]

[0053] 1 Side frame 11 Side cloth 12 Side frame long tube 13 Single bend joint 14 Side locking part 15 Locating ring 16 Side frame short pipe 17 Side frame opening / closing rotation hinge member 2 Fixed Frame 21 Fixed cloth 22 Fixed frame horizontal pipe 23 Double bend joint 24 Fixed frame side tube 25 Stopper block 3 Base Frame 31 Bottom cloth 32 U-shaped fixing plate 33 Positioning pillar 34 Base frame short pipe 35 Positioning pad 36 Horizontal sleeve 37 Base frame long pipe 4 Rivets 5 Locking buckle

Claims

1. The device includes a base frame (3), side frames (1) arranged along the long sides of the base frame (3), and fixed frames (2) arranged along the short sides of the base frame (3), A U-shaped fixing plate (32) is attached to the base frame long tube (37) of the base frame (3), and an upwardly facing slot is formed in the U-shaped fixing plate (32). The fixing frame (2) is inserted into the U-shaped fixing plate (32) by bending structures at the bottom corner positions on both sides, and is hingedly connected to the base frame (3); A side frame opening / closing / rotating hinge member (17) is fitted to the side frame long tube (12) at the bottom of the side frame (1), and the side frame opening / closing / rotating hinge member (17) is connected to the base frame long tube (37) of the base frame (3), hinge-connecting the side frame (1) and the base frame (3); A foldable storage bag framework is characterized in that a side locking section (14) is provided between the adjacent side frame short tube (16) and fixed frame side tube (24) of the side frame (1) and fixed frame (2), and the side frame (1) and fixed frame (2) are locked together by the side locking section (14).

2. A positioning ring (15) is attached to the side frame short pipe (16) of the side frame (1), and the side locking part (14) is hingedly connected to the side frame short pipe (16) by the positioning ring (15), 2. The foldable storage bag framework according to claim 1, wherein the side locking portion (14) is formed with an engaging protrusion groove that fits into the fixed frame side tube (24) of the fixed frame (2).

3. 2. The foldable storage bag framework according to claim 1, wherein a stopper block (25) is attached to the fixed frame side tube (24) of the fixed frame (2) to abut against the side frame (1) for positioning.

4. The long side frame tube (12) and the short side frame tube (16) of the side frame (1) are assembled and connected at adjacent end positions by a single bend joint (13), The horizontal pipe (22) and the side pipe (24) of the fixed frame (2) are assembled and connected at adjacent end positions by a double bend joint (23), 2. The foldable storage bag framework according to claim 1, wherein the long base frame tubes (37) and the short base frame tubes (34) of the base frame (3) are assembled and connected at adjacent end positions by single bend joints (13).

5. 2. The foldable storage bag framework according to claim 1, wherein a reinforcing horizontal tube (38) is provided inside the frame body of the base frame (3), and the reinforcing horizontal tube (38) is connected to the frame body of the base frame (3) via horizontal sleeves (36) on both ends.

6. The foldable storage bag framework according to claim 5, characterized in that a positioning pillar (33) is attached to the base frame short tube (34) of the base frame (3), and a positioning pad (35) is attached to the base frame long tube (37) of the base frame (3).

7. A foldable storage bag framework according to any one of claims 1 to 6, The foldable storage bag further includes side fabrics (11) attached to the side frames (1), fixed fabrics (21) attached to the fixed frames (2), and a bottom fabric (31) attached to the base frame (3).

8. 8. The foldable storage bag according to claim 7, wherein the side fabric (11), the fixing fabric (21), and the bottom fabric (31) are all provided with hook-and-loop fasteners.

9. 10. A pushcart comprising the foldable storage bag of claim 8, wherein the foldable storage bag is disposed on a carrier frame of the pushcart.

10. 10. The handcart according to claim 9, wherein the carrier frame is provided with positioning holes that fit onto positioning posts (33), and the carrier frame is further provided with locking buckles (5) that fit onto positioning pads (35).

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