Rust-proof envelope bag

Abstract

The utility model relates to rust -proof packaging technical field discloses a rust -proof envelope bag, including packing bag, the sealing strip and sealing groove of being located in the inside of opening, the opening end of packing bag still fixedly connected with sealing mechanism, sealing mechanism includes the opening and closing mouth, opposite fixed rubber groove and rubber strip, and has U shape sliding groove channel and is slidably sleeved in the opening and closing mouth outside push -and -pull block, the inner wall of push -and -pull block extrude rubber groove and rubber strip when sliding, the side of packing bag is provided with the observation port, the inside fixed of observation port has transparent film, and the inside of packing bag is opposite state indicating paste and is provided with the observation port, the utility model discloses through double -sealed structure, has greatly promoted the sealing reliability, prevents the corrosion inhibitor leakage and the moisture invasion, simultaneously, through the observation port and state indicating paste, has realized to the nondestructive visual monitoring of rust -proof environment in bag, solved the single sealing of prior art and the problem of unable monitoring.

Description

Technical Field

[0001] This utility model relates to the field of rust-proof packaging technology, and in particular to a rust-proof envelope bag. Background Technology

[0002] Metal parts, especially precision electronic components, automotive parts, or mechanical spare parts, are highly susceptible to corrosion from moisture, oxygen, and other corrosive media in the air during storage and transportation.

[0003] To address this issue, vapor phase corrosion inhibitor bags are widely used. The inner lining of these bags contains vapor phase corrosion inhibitors. Within the sealed space, the inhibitor molecules evaporate and adhere to the metal surface, forming a dense protective film that isolates corrosive media, thus achieving active rust prevention.

[0004] However, the effectiveness of this active rust prevention is highly dependent on the sealing performance of the enclosed space formed by the packaging bag. Most existing rust-proof bags use ordinary self-sealing strips or tape for sealing. This single sealing structure has limited airtightness, and its sealing performance is prone to decline during long-term storage, temperature and humidity changes, or repeated use.

[0005] On the one hand, this causes the vapor phase corrosion inhibitor molecules inside the bag to continuously leak outwards, making it impossible for them to maintain an effective protective concentration in the sealed space, thus shortening the effective period of rust prevention. On the other hand, moisture and corrosive gases in the external environment can also seep back into the bag through the loose seal, which not only accelerates the consumption of corrosion inhibitors but may even directly cause metal parts to rust inside the rust-proof packaging.

[0006] Even more seriously, users cannot judge the rust prevention status inside the bag from the outside. Due to the lack of effective monitoring methods, whether the humidity inside the packaging exceeds the standard or whether the corrosion inhibitor is still effective remains a black box. Users can only discover the problem when they finally open the packaging, and by then the parts have already rusted, often resulting in irreparable damage.

[0007] Therefore, this utility model proposes a rust-proof envelope to address the shortcomings of the prior art. Utility Model Content

[0008] In view of the problems of existing rust-proof envelopes, such as insufficient airtightness due to a single sealing structure, easy leakage of corrosion inhibitors and easy intrusion of external moisture, and inability to visually monitor the internal rust-proof environment without opening the packaging, this utility model aims to provide a rust-proof envelope with an improved structure that can effectively solve the above problems.

[0009] This utility model provides a rust-proof envelope bag, comprising: a packaging bag having an opening; a sealing strip and a sealing groove that interlock with each other are fixedly connected to the inner side of the opening of the packaging bag for achieving a first seal; the rust-proof envelope bag further comprises a sealing mechanism fixedly connected to the opening end of the packaging bag for achieving a second seal.

[0010] The sealing mechanism includes an opening, a rubber groove, a rubber strip, and a push-pull block. The opening serves as the base of the sealing mechanism and is fixedly connected to the open end of the packaging bag. The rubber groove and the rubber strip are fixed relative to each other on the inner side of the opening along its length. The push-pull block has a U-shaped sliding channel and is slidably fitted onto the outside of the opening. When the push-pull block slides along the opening, the inner walls on both sides of the U-shaped sliding channel contact and apply pressure to the outside of the rubber groove and the rubber strip, respectively, thereby forming a highly airtight external lock.

[0011] Furthermore, to enable visual monitoring, an observation port is provided on one side of the packaging bag, and a transparent film is fixedly connected to the inside of the observation port. A status indicator sticker is placed inside the packaging bag directly opposite the observation port.

[0012] Preferably, to achieve active rust prevention and in conjunction with physical barrier properties, the packaging bag is made of a multi-layer composite material, which includes, from the outside to the inside, a barrier layer, an adhesive layer, and a rust-preventive layer. To achieve active rust prevention, the rust-preventive layer contains VCI microcapsules.

[0013] Preferably, to enhance the sealing and fixation reliability of the observation port, the transparent film is fixedly connected to the inside of the observation port by a sealing edge, and the sealing edge surrounds the edge of the transparent film and heat-presses it to the inner wall of the packaging bag.

[0014] Preferably, the bag structure is formed by fixing its edges. Specifically, the edges of the bag, except for the opening, are sealed by hot-press welding to form a sturdy bag-shaped container.

[0015] Preferably, in order to monitor the internal environment, the status indicator sticker includes a substrate and a color developer impregnated on the substrate, which is sensitive to preset chemical substances and humidity. The color change of the color developer can intuitively reflect the internal environment status.

[0016] Preferably, for ease of information management and traceability, an information tag is also fixedly attached to the outside of the packaging bag. As one specific embodiment, the information tag has a QR code printed on its surface, allowing external devices to read the information.

[0017] 1. This utility model solves the problems of existing rust-proof bags relying solely on a single sealing strip, resulting in insufficient airtightness, easy leakage of corrosion inhibitor gas, and intrusion of external moisture by setting interlocking sealing strips and sealing grooves at the opening of the packaging bag, and adding a sliding sealing mechanism on the outside by a push-pull block to squeeze the rubber parts. It achieves the technical effect of double locking and greatly improves the reliability and durability of the seal.

[0018] 2. This utility model solves the problem that existing rust-proof packaging is in a black box state, and users cannot intuitively understand whether the internal rust-proof environment is effective without breaking the seal, by opening an observation port on one side of the packaging bag and using a transparent film on the inside and an internal status indicator sticker. It achieves the technical effect of non-destructive and visual monitoring of the environment inside the bag, which facilitates quality control and status assessment.

[0019] 3. This utility model solves the problems of unstable protective effect and inability to track and confirm the traditional rust-proof bag by combining a high-barrier multi-layer composite bag, a double sealing structure and a visual monitoring window. It achieves efficient synergy between active chemical protection and passive physical isolation, significantly extends the effective protection period and improves the overall performance of product protection. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a rust-proof envelope bag proposed in this utility model; Figure 2 This is a cross-sectional schematic diagram of the packaging bag for a rust-proof envelope bag proposed in this utility model; Figure 3 This is a cross-sectional schematic diagram of the sealing mechanism of a rust-proof envelope bag proposed in this utility model.

[0021] Legend: 1. Packaging bag; 101. Barrier layer; 102. Adhesive layer; 103. Rust-proof layer; 104. VCI microcapsule; 2. Edge sealing; 3. Observation port; 4. Sealed edge wrapping; 5. Status indicator sticker; 6. Transparent film; 7. Information label; 8. Sealing mechanism; 801. Opening and closing port; 802. Rubber groove; 803. Rubber strip; 804. Push-pull block; 9. Sealing strip; 10. Sealing groove. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in 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. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example

[0023] Please refer to Figures 1 to 3 This utility model provides a rust-proof envelope bag, which aims to solve the problems of insufficient air tightness, easy leakage of corrosion inhibitors, and easy intrusion of external moisture caused by the single sealing structure of existing rust-proof bags. It also solves the defect that the internal rust-proof environment cannot be directly monitored without opening the packaging.

[0024] like Figures 1 to 3 As shown, the rust-proof envelope includes a packaging bag 1; the main body of the packaging bag 1 is made of multi-layer composite material, including a barrier layer 101, an adhesive layer 102, and a rust-proof layer 103 from the outside to the inside; the adhesive layer 102 fixes and adheres the barrier layer 101 and the rust-proof layer 103; the rust-proof layer 103 contains VCI microcapsules 104; the edges of the packaging bag 1, except for the opening, are formed by hot-press welding with a sealing edge 2; the packaging bag 1 has an opening, and a sealing strip 9 and a sealing groove 10 are fixedly connected to the inside of the opening of the packaging bag 1; a sealing mechanism 8 is also fixedly connected to the opening end of the packaging bag 1; the sealing mechanism 8 includes an opening 801, a rubber groove 802, a rubber strip 803, and a push-pull block 804; the opening 801 is fixedly connected to the packaging bag 1. The bag 1 has an open end; rubber groove 802 and rubber strip 803 are fixed to the inside of the opening 801 along the length of the opening 801; the push-pull block 804 has a U-shaped sliding groove and is slidably sleeved on the outside of the opening 801. When the push-pull block 804 slides along the opening 801, the inner walls on both sides of the U-shaped sliding groove contact the outside of the rubber groove 802 and rubber strip 803 respectively and apply pressure to them; an observation port 3 is provided on one side of the packaging bag 1, and a transparent film 6 is fixedly connected to the inside of the observation port 3; the transparent film 6 is fixedly connected to the inside of the observation port 3 through a sealing edge 4; a status indicator sticker 5 is provided inside the packaging bag 1 directly opposite the observation port 3; an information label 7 is also fixedly connected to the outside of the packaging bag 1.

[0025] Please refer to the following carefully. Figure 1 and Figure 3 The sealing mechanism 8 is described in detail below: The sealing mechanism 8 is fixedly connected to the open end of the packaging bag 1; the sealing mechanism 8 includes an opening 801, a rubber groove 802, a rubber strip 803, and a push-pull block 804; the opening 801 serves as the base of the sealing mechanism 8 and is fixedly connected to the opening of the packaging bag 1; the rubber groove 802 and the rubber strip 803 are fixed relative to each other on the inner side of the opening 801 along the length direction of the opening 801; the push-pull block 804 has a U-shaped sliding channel and is slidably fitted onto the outside of the opening 801; when the push-pull block 804 slides along the length direction of the opening 801, the inner walls on both sides of the U-shaped sliding channel contact the outside of the rubber groove 802 and the rubber strip 803 respectively and apply pressure to them, forcing the rubber groove 802 and the rubber strip 803 to undergo elastic deformation and fit tightly together, forming a highly airtight external lock.

[0026] Please refer to the following carefully. Figure 1 and Figure 2 The observation port 3 component is described in detail below: An observation port 3 is provided on one side of the packaging bag 1; a transparent film 6 is fixedly connected to the inside of the observation port 3 to transparently seal the observation port 3; specifically, the transparent film 6 is fixedly connected to the inside of the observation port 3 by a sealing edge 4, which surrounds the edge of the transparent film 6 and heat-presses it to the inner wall of the packaging bag 1, thereby enhancing the strength and sealing of the connection; a status indicator sticker 5 is provided inside the packaging bag 1, directly opposite the observation port 3; the status indicator sticker 5 includes a substrate and a color developer impregnated on the substrate, which is sensitive to a preset chemical substance and humidity; with this structure, the user can observe the color change of the status indicator sticker 5 at any time through the observation port 3 and the transparent film 6 without breaking the seal of the packaging bag 1.

[0027] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, please refer to Figure 2 The packaging bag 1 is made of a multi-layer composite material, which includes, from the outside to the inside, a barrier layer 101, an adhesive layer 102, and a rust-preventive layer 103. The barrier layer 101 is used to block external moisture and oxygen, the rust-preventive layer 103 is used to provide corrosion inhibitors, and the adhesive layer 102 fixes and bonds the barrier layer 101 and the rust-preventive layer 103. The rust-preventive layer 103 contains VCI microcapsules 104.

[0028] As another preferred embodiment, please refer to Figure 1 The edges of the packaging bag 1, except for the opening, are hot-pressed and welded together by the sealing edge 2 to form a sturdy bag structure.

[0029] As another preferred embodiment, please refer to Figure 1 An information label 7 is also fixedly attached to the outside of the packaging bag 1; the surface of the information label 7 is printed with a QR code for information recording and traceability.

[0030] The working principle of this rust-proof envelope is as follows: When metal parts are placed in packaging bag 1 and need to be sealed, the user first presses the sealing strip 9 inside the opening into the sealing groove 10. The first preliminary seal is completed through the interlocking of the two. Then, the user holds the push-pull block 804 on the sealing mechanism 8 and slides it along the length of the opening 801. When the push-pull block 804 slides, the inner walls on both sides of the U-shaped sliding channel inside it will continuously squeeze the rubber groove 802 and rubber strip 803 that are fixed to the inside of the opening 801. This squeezing force forces the rubber groove 802 and rubber strip 803 to undergo elastic deformation and fit tightly together, forming a second high-airtightness external lock. The double sealing structure formed by the internal snapping of the sealing strip 9 and the sealing groove 10, and the external squeezing of the sealing mechanism 8, greatly improves the sealing reliability of the bag opening and minimizes internal gas leakage and external moisture intrusion.

[0031] After the packaging bag 1 is double-sealed, a closed space is formed inside. At this time, the VCI microcapsules 104 in the anti-rust layer 103 begin to volatilize, releasing vapor-phase corrosion inhibitor molecules. These molecules fill the space inside the bag and are adsorbed on the surface of the metal parts to form a monomolecular protective film. This protective film isolates the metal surface from contact with water vapor and oxygen, inhibits electrochemical reactions, and thus prevents rusting. At the same time, the barrier layer 101 of the bag itself acts as a physical barrier and effectively prevents external corrosive media from penetrating into the bag.

[0032] During storage or transportation, users can directly observe the status indicator sticker 5 inside the packaging bag 1 at any time through the observation port 3 on one side of the packaging bag 1 and the transparent film 6 fixed thereon without breaking the double seal. The status indicator sticker 5 includes a color developer, and its color change can intuitively reflect whether the humidity or corrosion inhibitor concentration inside the bag meets the standard. In addition, the information label 7 fixed on the outside of the packaging bag 1 has a QR code on its surface that can be used for product information traceability and management.

[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A rust-proof envelope, comprising: Packaging bag (1), said packaging bag (1) having an opening; The inner side of the opening of the packaging bag (1) is fixedly connected with a sealing strip (9) and a sealing groove (10) that interlock with each other. The packaging bag (1) is characterized in that a sealing mechanism (8) is fixedly connected to the open end of the packaging bag (1). The sealing mechanism (8) includes an opening (801), a rubber groove (802), a rubber strip (803), and a push-pull block (804). The opening (801) is fixedly connected to the open end of the packaging bag (1). The rubber groove (802) and the rubber strip (803) are fixedly positioned relative to each other along the length of the opening (801) on the inner side of the opening (801). The push-pull block (804) has a U-shaped sliding surface. The moving channel is slidably sleeved on the outside of the opening (801). When the push-pull block (804) slides along the opening (801), the inner walls of both sides of the U-shaped sliding channel contact the outside of the rubber groove (802) and the rubber strip (803) respectively and apply pressure to them. An observation port (3) is provided on one side of the packaging bag (1). A transparent film (6) is fixedly connected to the inside of the observation port (3). A status indicator sticker (5) is provided inside the packaging bag (1) at the position opposite to the observation port (3).

2. The rust-proof envelope bag according to claim 1, characterized in that, The packaging bag (1) is made of a multi-layer composite material, which includes a barrier layer (101), an adhesive layer (102) and a rust-proof layer (103) from the outside to the inside.

3. The rust-proof envelope bag according to claim 2, characterized in that, The rust-preventive layer (103) contains VCI microcapsules (104).

4. The rust-proof envelope bag according to claim 1, characterized in that, The transparent film (6) is fixedly connected to the inside of the observation port (3) by a sealing edge (4).

5. The rust-proof envelope bag according to claim 1, characterized in that, The packaging bag (1) is formed by hot-pressing and welding the remaining edges, except for the opening, by sealing (2).

6. The rust-proof envelope bag according to claim 1, characterized in that, The status indicator sticker (5) includes a substrate and a color developer impregnated on the substrate that is sensitive to a preset chemical substance and humidity.

7. The rust-proof envelope bag according to claim 1, characterized in that, An information label (7) is also fixedly attached to the outside of the packaging bag (1).

8. The rust-proof envelope bag according to claim 7, characterized in that, The information label (7) has a QR code printed on its surface.

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