A reinforcing device for a pressure-proof food bag

By combining a frame and positioning rods, the problem of temporary food bags collapsing under external forces is solved, achieving both pressure resistance and convenient use of the food bags.

CN224477284UActive Publication Date: 2026-07-10QINGDAO SHUNXIN PACKING PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO SHUNXIN PACKING PROD CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing temporary food bags are prone to collapse during external pressure, handling, or stacking, leading to food damage. Existing compression-resistant solutions are difficult to apply to temporary packaging scenarios.

Method used

The system employs a combination of a first frame, a second frame, connectors, and positioning rods to form a stable support system. Its threaded connection and foldable design allow it to accommodate various sizes of food bags.

Benefits of technology

The temporary food bags have improved compressive strength, preventing food from being crushed and damaged, and are easy to store and quickly assembled.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of reinforcing devices for anti-pressure food bag, it is related to packaging container technical field.A kind of reinforcing devices for anti-pressure food bag, comprising: first frame, second frame, connecting piece and positioning rod;First frame, second frame are all in mouth shape;First frame, second frame are connected across and are rotationally connected in cross position by pin shaft;The upper bar position of first frame and the lower bar position of second frame are all rotationally connected with connecting piece;Connecting piece includes shaft sleeve and the joint fixedly connected with shaft sleeve;Connecting piece is rotationally connected on first frame by shaft sleeve.The utility model is innovated by first frame, second frame, connecting piece and positioning rod and the like structure cooperation, forms stable support system, effectively promotes temporary food bag compression resistance, prevents internal food from being extruded damage;Foldable structure and screw connection mode make device convenient to store and quickly assemble, adapt to multiple sizes food bag.
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Description

Technical Field

[0001] This utility model relates to the field of packaging container technology, specifically to a reinforcing device for pressure-resistant food bags. Background Technology

[0002] In temporary food packaging scenarios, such as homemade food repackaging or temporary packaging by market vendors, simple food bags are often used for temporary food loading. These temporary food bags are mostly disposable plastic film bags, paper bags, and other non-industrially produced packaging carriers, and their materials are usually thin and not designed to withstand pressure.

[0003] When temporarily loading fragile items such as biscuits, pastries, and fried foods, the bags are prone to collapse and deformation during external pressure, handling, collision, or stacking, which can cause the food inside to be crushed, stuck together, or damaged. Especially in scenarios where frequent moving or temporary storage is required in a short period of time, the integrity of the food cannot be effectively guaranteed.

[0004] In existing technologies, there are various compression-resistant solutions for commercially available food bags used in industrial production, such as inflatable packaging and rigid cardboard inner linings. However, these solutions are difficult to directly apply to temporary food bag scenarios. Because existing solutions cannot achieve universal compression protection, the problem of food being damaged due to the bag's lack of compression resistance in temporary packaging scenarios has persisted for a long time.

[0005] Therefore, the inventors believe that how to solve the above-mentioned technical problems is a technical problem that needs to be solved in the field of packaging container technology.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] To address the aforementioned technical problems, this utility model provides a reinforcing device for pressure-resistant food bags, thereby solving the problems mentioned in the background art.

[0008] This utility model provides the following technical solution: a reinforcing device for anti-pressure food bags, comprising: a first frame, a second frame, a connector, and a positioning rod;

[0009] Both the first and second frames are U-shaped; the first and second frames are intersecting and rotatably connected at the intersection by a pin.

[0010] Connectors are rotatably connected to the upper rod position of the first frame and the lower rod position of the second frame; the connectors include bushings and joints fixedly connected to the bushings; the connectors are rotatably connected to the first frame through the bushings.

[0011] One end of the positioning rod is detachably and fixedly connected to the connector; the other end of the positioning rod has a slot on its body; the slot is used to engage with the rods of the first and second frames on the opposite side of the connector.

[0012] Preferably, the connector is a pipe structure with an internal thread in the inner cavity; the other end of the positioning rod is provided with an external thread that mates with the internal thread, and the end of the positioning rod is connected to the internal thread in the inner cavity of the connector through the external thread.

[0013] Preferably, the first frame, the second frame, the connector, and the positioning rod are all made of metal or hard plastic.

[0014] Preferably, the bottom surface of the lower rod on the first frame and the second frame is provided with several anti-slip ridges.

[0015] Preferably, two connectors are rotatably connected to the upper rod position of the first frame and the lower rod position of the second frame.

[0016] The present invention provides a reinforcing device for pressure-resistant food bags, which has the following advantages: The present invention forms a stable support system through the innovative combination of a first frame, a second frame, connectors and positioning rods, which effectively improves the pressure resistance of temporary food bags and prevents the internal food from being squeezed and damaged; the foldable structure and threaded connection make the device easy to store and quickly assemble, and it is suitable for food bags of various sizes. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the present invention at a first angle in the open state;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention at a second angle in the open state;

[0019] Figure 3 This is a structural schematic diagram of the present invention at a first angle in the folded state;

[0020] Figure 4 This utility model Figure 3 Exploded view of the middle section of the structure;

[0021] Figure 5 This utility model Figure 4 A magnified view of part A in the image;

[0022] Figure 6 This utility model Figure 4 A magnified view of part B in the image. Detailed Implementation

[0023] 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.

[0024] See Figures 1-6 To address the problems mentioned in the background section, this utility model provides a reinforcing device for pressure-resistant food bags to solve the aforementioned technical problems. The technical solution is as follows:

[0025] A reinforcing device for a pressure-resistant food bag includes: a first frame 110, a second frame 120, a connector 130, and a positioning rod 140;

[0026] Both the first frame 110 and the second frame 120 are in the shape of a square; both the first frame 110 and the second frame 120 are composed of four rods connected end to end; the first frame 110 and the second frame 120 are cross-connected and rotatably connected at the cross position by a pin 150.

[0027] Connectors 130 are rotatably connected to the upper rod position of the first frame 110 and the lower rod position of the second frame 120. The connector 130 is T-shaped and includes a bushing 131 and a joint 132 fixedly connected to the bushing 131. The connector 130 is rotatably connected to the first frame 110 through the bushing 131.

[0028] One end of the positioning rod 140 is detachably and fixedly connected to the connector 132 of the connector 130; the other end of the positioning rod 140 has a slot 141 on its rod body; the slot 141 is used to engage with the rod body 120 of the first frame and the second frame on the opposite side of the connector; specifically, it engages with the lower rod position of the first frame and the upper rod position of the second frame on the opposite side of the connector.

[0029] In this embodiment, the connector 132 is a pipe structure, and the inner cavity of the connector 132 is provided with an internal thread 133; the other end of the positioning rod 140 is provided with an external thread 141 that mates with the internal thread 133, and the positioning rod 140 is connected to the internal thread 133 of the inner cavity of the connector 132 through the external thread 141; the threaded connection facilitates connection.

[0030] In this embodiment, the first frame 110, the second frame 120, the connector 130, and the positioning rod 140 are all made of metal or hard plastic.

[0031] If the first frame 110, the second frame 120, the connector 130, and the positioning rod 140 are made of metal, then the first frame 110, the second frame 120, and the positioning rod 140 are tubular components used to reduce the weight of the accessories.

[0032] In this embodiment, the bottom surfaces of the lower rods on the first frame 110 and the second frame 120 are provided with a plurality of anti-slip ridges. The anti-slip ridges design enhances the friction between the device and the bottom of the bag, preventing slippage and displacement.

[0033] In this embodiment, two connectors 130 are rotatably connected to the upper rod position of the first frame 110 and the lower rod position of the second frame. The present invention provides a method for using a reinforcing device for pressure-resistant food bags:

[0034] (1) Preparation and unfolding of the frame: Open the temporary food bag (such as a plastic film bag or paper bag) and ensure that the inside of the bag is clean; take out the folded reinforcing device, hold the first frame 110 and the second frame 120, and rotate along the pin 150 to unfold the frame so that the two frames are in an X shape; at this time the frame is in the initial unfolded state.

[0035] (2) Positioning rod connection and locking: Rotate the bushing 131 of the connector 130 along the upper and lower rods of the first frame 110 to adjust to a suitable angle; screw the external thread 141 of one end of the positioning rod 140 into the connector 132 of the connector 130, align the groove 141 of the other end with the rod body of the second frame 120, and press firmly to lock the groove 141. At this time, the first frame, the second frame, and the positioning rod form a stable support structure; Figure 1-2 As shown.

[0036] (3) Putting food into the bag and loading food: Place the unfolded and locked reinforcing device at the bottom of the food bag to ensure that the anti-slip ribs of the frame fit against the bottom of the bag to prevent slippage; put fragile foods such as biscuits and pastries into the bag and place them in the support space formed by the frame to avoid direct contact between the food and the bag wall.

[0037] (4) Storage and Reuse: After use, remove the slot 141 from the second frame and disassemble the positioning rod 140 (unscrew the threaded connection); fold the first and second frames along the pin 150, return the connector 130 to its original position, and the device is folded into a flat shape for easy storage and future use; Figure 3 As shown.

[0038] It should be noted that in step (2) above, if the first frame 110 and the second frame 120 are rotated and unfolded and fixed by the positioning rod 140, it is inconvenient to put fragile foods such as biscuits and pastries into the bag. You can first position the positioning rod 140 at the bottom of the first frame 110, and then position the positioning rod 140 at the top of the first frame 110 after all the food is put into the bag.

[0039] The present invention provides a reinforcing device for pressure-resistant food bags, which has the following advantages: The present invention forms a stable support system through the innovative combination of a first frame, a second frame, a connector, and a positioning rod, which effectively improves the pressure resistance of temporary food bags and prevents the internal food from being squeezed and damaged; the foldable structure and threaded connection make the device easy to store and quickly assemble, and it is suitable for food bags of various sizes.

[0040] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims.

Claims

1. A reinforcing device for pressure-resistant food bags, characterized in that, include: First frame, second frame, connectors and positioning rods; Both the first and second frames are U-shaped; the first and second frames are intersecting and rotatably connected at the intersection by a pin. Connectors are rotatably connected to the upper rod position of the first frame and the lower rod position of the second frame; the connectors include bushings and joints fixedly connected to the bushings; the connectors are rotatably connected to the first frame through the bushings. One end of the positioning rod is detachably and fixedly connected to the connector; the other end of the positioning rod has a slot on its body; the slot is used to engage with the rods of the first and second frames on the opposite side of the connector.

2. The reinforcing device for pressure-resistant food bags according to claim 1, characterized in that, The connector is a pipe structure with an internal thread inside the cavity; the other end of the positioning rod has an external thread that mates with the internal thread, and the end of the positioning rod is connected to the internal thread inside the cavity of the connector through the external thread.

3. The reinforcing device for pressure-resistant food bags according to claim 1, characterized in that, The first frame, the second frame, the connectors, and the positioning rods are all made of metal or hard plastic.

4. The reinforcing device for pressure-resistant food bags according to claim 1, characterized in that, The bottom surface of the lower rod on the first and second frames has several anti-slip ridges.

5. The reinforcing device for pressure-resistant food bags according to claim 1, characterized in that, Two connecting pieces are rotatably connected at the upper rod position of the first frame and the lower rod position of the second frame.