A substation terminal box control cabinet flood-proof sealing bag

By designing a flood-proof sealing bag for the substation terminal box control cabinet, and utilizing air pressure balance and locking components to achieve a water seal, the problem of cumbersome and costly flood protection measures was solved, achieving a fast and economical sealing effect.

CN122246578APending Publication Date: 2026-06-19STATE GRID HUNAN ELECTRIC POWER COMPANY LIMITED +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID HUNAN ELECTRIC POWER COMPANY LIMITED
Filing Date
2026-05-21
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing technologies for protecting substation terminal boxes and control cabinets during the flood season are cumbersome, costly, and ineffective at preventing flood intrusion, and cannot adapt to equipment of different terrains and specifications.

Method used

A flood-proof sealing bag for substation terminal box control cabinet was designed. By utilizing the air pressure balance formed in the inner cavity of the sealing bag, combined with locking parts and Velcro, a water-sealed state is achieved, simplifying installation and improving waterproof effect.

🎯Benefits of technology

It reduces flood control costs and installation difficulty, can be quickly deployed by a single person, improves the response speed and operational efficiency of flood control and disaster relief, and has a long-lasting sealing effect that is adaptable to complex environments.

✦ Generated by Eureka AI based on patent content.

Smart Images

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    Figure CN122246578A_ABST
Patent Text Reader

Abstract

A flood-prevention sealing bag for substation terminal boxes and control cabinets includes a sealing bag body. The inner cavity shape of the sealing bag body matches the outer shape of the component to be sealed, and the inner cavity space of the sealing bag body is larger than that of the component to be sealed. The opening of the sealing bag body matches the circumferential shape and size of the bottom of the component to be sealed. A locking component is provided at the opening of the sealing bag body. In the working state, the sealing bag body is fitted onto the component to be sealed with its opening facing downwards. The locking component is used to press and fix the inner wall of the sealing bag body at its opening to the outer wall of the component to be sealed. This device ensures the firmness and stability of the sealing bag body fitted onto the component to be sealed through the fixing and locking components. At the same time, combined with the principle of air sealing pressure balance, it effectively prevents external water from penetrating into the sealing bag body. It is suitable for sealing substation terminal boxes and control cabinets during flood prevention and emergency rescue, and is easy to operate with a long-lasting sealing effect.
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Description

Technical Field

[0001] This invention relates to a flood-proof sealing bag for substation terminal boxes and control cabinets. Background Technology

[0002] In the current operation of the power system, substations are key hubs for power transmission and distribution, and the safe and stable operation of their equipment is of paramount importance. Terminal boxes and control cabinets, as important electrical equipment in substations, are responsible for key functions such as transferring and controlling various signals and monitoring the operating status of equipment. However, during the flood season, terminal boxes and control cabinets face the challenge of waterproofing and flood prevention.

[0003] Currently, during the flood season, the main protective measures for substation terminal boxes or control cabinets are to use tarpaulins, flood barriers, or sandbags to compact and secure the bottom of these structures. However, using tarpaulins, flood barriers, and sandbags for protection requires a large amount of manpower to move sandbags, install barriers, lay tarpaulins, and fix them. The process is cumbersome and inefficient. To complete the protection in a short time, a large amount of manpower is needed, which not only increases the manpower burden of flood control work but also increases the cost of protection.

[0004] On the other hand, tarpaulins are easily damaged or displaced by wind and water flow, making them ineffective in preventing flood intrusion; flood control barriers are difficult to completely seal with the ground, terminal boxes, or control cabinets, leaving gaps through which floodwaters may seep in; while flood control sandbags can block water flow to some extent, they may become loose and leak after prolonged soaking, leading to a decrease in waterproof performance. Moreover, these traditional protective measures are difficult to precisely adapt to different terrains and terminal boxes and control cabinets of different specifications, further affecting the waterproof effect.

[0005] Therefore, in order to ensure the safe and stable operation of substations during the flood season, there is an urgent need for a flood prevention solution for terminal boxes and control cabinets to ensure that important equipment such as terminal boxes and control cabinets are not damaged by floods during the flood season. Summary of the Invention

[0006] This invention addresses the shortcomings of existing technologies by providing a flood control sealing bag for substation terminal boxes and control cabinets. This device has a simple structure, reduces costs and installation difficulty, and can be quickly deployed by a single person, significantly improving the response speed and operational efficiency of flood control and disaster relief.

[0007] To achieve the above objectives, the present invention proposes a flood control sealing bag for substation terminal box control cabinet, including a sealing bag body, the inner cavity of the sealing bag body being larger than the part to be sealed, and a locking component at the bag opening of the sealing bag body. In the working state, the sealing bag body is fitted with the bag opening facing downwards outside the part to be sealed, and the locking component is used to press and fix the inner wall of the bag opening of the sealing bag body to the outer wall of the part to be sealed.

[0008] In this embodiment, a non-slip layer is provided on the inner wall of the sealed bag body at the bag opening along the bag opening.

[0009] In this embodiment, at least one set of counterweights can be detachably installed on the outer wall of the sealed bag body near the bag opening. Multiple sets of counterweights are arranged along the depth direction of the sealed bag body, and each set of counterweights includes multiple counterweights evenly arranged along the circumference of the sealed bag body.

[0010] In this embodiment, the sealed bag body includes an inner bag and an outer bag. The outer bag is fitted over the outer side of the inner bag, and the inner bag and the outer bag are fixedly connected by a fastener. The inner bag is made of a waterproof and sealing material, and the outer bag is made of an anti-aging and tear-resistant material.

[0011] In this embodiment, on the inner bag wall near the bag opening, an outward-folding section and an anti-slip section are sequentially provided from the edge of the bag opening along the depth direction of the inner bag. The widths of the outward-folding section and the anti-slip section are matched and both are larger than the size of the locking member. A hook and loop fastener male face is fixed on the outer wall of the outward-folding section of the inner bag, and an anti-slip layer is fixed on the inner wall of the anti-slip section of the inner bag. A hook and loop fastener female face matching the hook and loop fastener male face is provided on the outer wall of the bag opening end of the outer bag. In the working state, the locking member is fitted onto the position of the hook and loop fastener female face of the outer bag.

[0012] In this embodiment, the depth of the outer bag is less than that of the inner bag, so that after the outer bag is fitted over the outer side of the inner bag, the position of the Velcro fastener matches the position of the anti-slip layer of the inner bag.

[0013] In this embodiment, liquid adhesive is used to fill the space between the inner bag and the outer bag.

[0014] In this embodiment, a hook assembly is fixed on the outer wall of the outer bag near the bag opening. The hook assembly includes multiple hooks evenly arranged along the circumference of the sealed bag body, and a counterweight is detachably fixed to the hooks.

[0015] In this embodiment, the outer bag has multiple annular channels sewn circumferentially on its inner wall near the bottom of the bag. The multiple annular channels are arranged along the depth direction of the outer bag. The size of the annular channels matches that of the locking member. The annular channels have inlets and outlets, and the locking member passes through the annular channels.

[0016] In this embodiment, both the fixing member and the locking member are hose clamps.

[0017] Compared with the prior art, the present invention has the following technical effects:

[0018] 1. This device is based on the hydrostatic pressure of water and the principle of liquid seal isolation. It utilizes the air pressure balance formed by the sealed air cavity inside the sealed bag to create waterproofing, thereby forming a "water seal" at the bag opening. As long as the air pressure inside the bag is not lower than the hydrostatic pressure at the opening, the air inside the bag will not leak out from the gap at the bag opening, thus preventing external water from entering the sealed bag body. Furthermore, the bag opening of the sealed bag body in this application does not need to be completely sealed with the object to be sealed. It is only necessary to tie and fix the bag opening of the sealed bag body tightly with locking components to restrict the shape of the bag opening, so that the bag opening is always taut and closed. By ensuring small gaps, the air inside the sealed bag is confined to a fixed space, maintaining a "water seal" at the bag opening. Simultaneously, the cooperation of fixing and locking components ensures the sealed bag is stably fixed to the object to be sealed, preventing the bag from moving under buoyancy and causing the opening to rise and break the water seal. Therefore, this device utilizes hydrostatic pressure and the principle of liquid seal isolation, simplifying the device and significantly reducing its cost and installation difficulty. It can be quickly deployed by a single person, greatly improving the response speed and operational efficiency of flood control and disaster relief.

[0019] 2. The sealing bag body of this device consists of an inner bag and an outer bag. The inner bag is made of waterproof and sealing material, which can effectively prevent water penetration and provide a waterproof barrier for the sealing bag body. It can reliably prevent external water from entering the interior of the sealing bag body, thereby protecting the sealed substation terminal box or control cabinet from water immersion damage. The outer bag is made of anti-aging and tear-resistant material, which allows the sealing bag to adapt to complex and changing outdoor environmental conditions, reducing the possibility of the outer bag becoming brittle and breaking due to aging. It can also resist accidental pulling, friction and other external forces, thus protecting the inner bag and greatly extending its service life. The extended lifespan of the sealed bag body reduces replacement costs, making it more reliable for applications in scenarios with high requirements for sealing and durability, such as flood control in substations. Furthermore, the traditional stitching method for fixing the inner and outer bags is abandoned. Instead, liquid adhesive is used for sealing between the inner and outer bags. Additionally, multiple annular channels are sewn circumferentially along the inner wall of the outer bag near the bottom, allowing the fasteners to be fixedly connected to the outer bag through these channels. This placement of the fasteners between the inner and outer bags prevents them from directly contacting and scratching the inner bag during the tightening and compression process, thus avoiding damage to the inner bag.

[0020] 3. This device is equipped with foldable Velcro. The inner bag folds outward and upward, and the inner bag folds outward and upward to be fixed to the outer bag's Velcro female surface through the male side of the Velcro. On the one hand, it can protect the locking element. On the other hand, when the sealed bag body is subjected to upward buoyancy, the locking element provides radial clamping force to prevent the inner bag from slipping, while the Velcro can also resist the axial peeling of the upward buoyancy through shearing force. The cooperation of the locking element and the Velcro forms a double anti-detachment mechanism.

[0021] 4. This device consists only of an inner bag, an outer bag, Velcro, and a hose clamp. It has no complex or precision components, the raw materials are readily available, the production process is simple, and the yield rate is high. While ensuring waterproof performance, it effectively reduces production and warehousing and transportation costs, and is easy to mass-produce. Moreover, after the device is used, the original shape of the sealed bag can be restored by loosening the hose clamp and tearing off the Velcro. After washing and drying, it can be reused. It is economical and environmentally friendly. The device is also lightweight, which can significantly reduce the physical exertion of rescue personnel during installation, disassembly, and turnover, and improve emergency response capabilities.

[0022] In summary, this device ensures the firmness and stability of the sealing bag body fitted outside the object to be sealed through fixing and locking components. At the same time, combined with the principle of air tightness and pressure balance, it effectively prevents external water from penetrating into the sealing bag body. It is suitable for sealing substation terminal boxes and control cabinets in flood control and disaster relief. It is easy to operate and has a long-lasting sealing effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a cross-sectional view of the sealing bag body of the present invention;

[0025] Figure 3 This is a structural diagram showing the connection between the locking component and the hook and loop fastener of the present invention.

[0026] Figure 4 This is a flowchart illustrating the installation process of the present invention.

[0027] In the picture: 1. Male side of hook and loop fastener; 2. Fastener; 3. Outer pocket; 4. Inner pocket; 5. Anti-slip layer; 6. Locking device; 7. Female side of hook and loop fastener; 8. Hook. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention 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 the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0030] like Figures 1 to 4As shown, a flood control sealing bag for a substation terminal box control cabinet includes a sealing bag body. The shape of the inner cavity of the sealing bag body matches the outer shape of the part to be sealed. The inner cavity space of the sealing bag body is larger than that of the part to be sealed. The bag opening of the sealing bag body matches the bottom circumferential shape and size of the part to be sealed. A locking member 6 is provided at the bag opening of the sealing bag body. In the working state, the bag opening of the sealing bag body is placed on the outside of the part to be sealed with the bag opening facing down. The locking member 6 is used to press and fix the inner wall of the bag opening of the sealing bag body to the outer wall of the part to be sealed.

[0031] Furthermore, an anti-slip layer 5 is provided on the inner wall of the sealed bag body at the bag opening; at least one set of counterweights can be detachably installed on the outer wall of the sealed bag body near the bag opening, and multiple sets of counterweights are arranged along the depth direction of the sealed bag body. Each set of counterweights includes multiple counterweights evenly arranged along the circumference of the sealed bag body. In the working state, the sealed bag body contacts the outer wall of the part to be sealed through the anti-slip layer 5, and then the locking part 6 presses the anti-slip layer 5 against the outer wall of the part to be sealed, thereby increasing the friction between the sealed bag body and the part to be sealed; the counterweights are used for the anti-buoyancy of the sealed bag body;

[0032] This invention utilizes the hydrostatic pressure of water and the principle of liquid seal isolation. When the sealing bag body is fitted over the component to be sealed, and the opening of the sealing bag body is secured to the component by the locking member 6, the cavity between the sealing bag body and the component to be sealed forms a sealed cavity. The air inside the cavity is confined within a fixed space. When the air pressure inside the bag is greater than or equal to the external water pressure, the internal air pressure of the sealing bag body will form a water seal barrier at the opening of the sealing bag body, preventing external water from entering the sealing bag body. Using this principle, the opening of the sealing bag body and the component to be sealed do not need to be completely sealed, thus greatly reducing the cost of the device and the difficulty of installation. This device, through the locking member 6, on the one hand, prevents the sealing bag body from moving upward under the action of buoyancy, and on the other hand, tightens the opening of the sealing bag body, restricts the shape of the opening, and prevents the opening from being deformed by the water flow, so that the opening of the bag is always taut and closed, ensuring that the gap is small and the air inside the sealing bag body cannot escape.

[0033] In this embodiment, the sealed bag body includes an inner bag 4 and an outer bag 3. The outer bag 3 is fitted over the inner bag 4, and liquid adhesive is filled between the inner bag 4 and the outer bag 3. The inner bag 4 and the outer bag 3 are fixedly connected by a fastener 2. The inner bag 4 is made of a waterproof and sealing material, such as TPU (thermoplastic polyurethane), PE (polyethylene), or PVC (polyvinyl chloride). The outer bag 3 is made of an anti-aging and tear-resistant material, such as PET (polyester), PP (polypropylene), or high-toughness nylon. Furthermore, on the bag wall near the bag opening of the inner bag 4, an outward-folding section and an anti-slip section are sequentially provided from the edge of the bag opening along the depth direction of the inner bag 4. The widths of the outward-folding section and the anti-slip section are matched and both are larger than the size of the locking member 6. A magic seal is fixed to the outer wall of the outward-folding section of the inner bag 4. The inner bag 4 has an anti-slip layer 5 fixed on the inner wall of the anti-slip section of the hook and loop fastener male face 1. The outer bag 3 has a hook and loop fastener female face 7 on the outer wall of the bag opening end that matches the hook and loop fastener male face 1. The depth of the outer bag 3 is less than that of the inner bag 4, so that after the outer bag 3 is fitted outside the inner bag 4, the position of the hook and loop fastener female face 7 matches the position of the anti-slip layer 5 of the inner bag 4. In the working state, the locking member 6 is fitted on the position of the hook and loop fastener female face 7 of the outer bag 3, thereby pressing the anti-slip layer 5 of the inner bag 4 against the outer wall of the part to be sealed. Then, the outward folding section of the inner bag 4 is folded outward and upward, and the outward folding section of the inner bag 4 is fixed to the hook and loop fastener female face 7 of the outer bag 3 through the hook and loop fastener male face 1, which not only protects the locking member 6, but also further locks the locking member 6 to prevent it from loosening. Furthermore, as Figure 1 As shown, in this embodiment, both the inner bag 4 and the outer bag 3 are rectangular bags. The depth a of the inner bag 4 is 110cm, the width b of the outer bag 3 is 35cm, the length c of the outer bag 3 is 75cm, and the width d of the folded section is 10cm.

[0034] In this embodiment, both the fixing member 2 and the locking member 6 are hose clamps, and more specifically, self-tightening hose clamps can be used. The hose clamp is 5cm wide, and its self-locking structure ensures stable and consistent pressure, preventing loosening due to vibration or temperature changes. The outer bag 3 has multiple annular channels sewn circumferentially on its inner wall near the bottom. These channels are arranged along the depth of the outer bag 3, and their size matches the hose clamp. Each annular channel has an inlet and an outlet. The hose clamp passes through these annular channels to connect with the outer bag 3. Figure 1 As shown, in this embodiment, there are two annular channels. In the working state, the sealing bag body is put on the outside of the component to be sealed. By tightening the hose clamp, on the one hand, the outer bag 3 and the inner bag 4 can be fixed on the sealing component, while maintaining the fit between the outer bag 3 and the inner bag 4. On the other hand, the hose clamp contacts the inner bag 4 through the annular channel, preventing the hose clamp from directly contacting the inner bag 4 during the tightening and squeezing process and scratching the inner bag 4, causing the inner bag 4 to break.

[0035] With the above structure, when the sealed bag body is subjected to upward buoyancy, the hose clamp provides radial clamping force to prevent the inner bag 4 from slipping, while the Velcro resists the axial peeling of the upward buoyancy through shearing force, so that the hose clamp and Velcro work together to form a dual anti-detachment mechanism.

[0036] Furthermore, the outer bag 3 has a hook assembly fixed on its outer wall near the bag opening. The hook assembly includes multiple hooks 8 evenly arranged along the circumference of the sealed bag body; the counterweight is detachably fixed to the hooks 8.

[0037] In this embodiment, the component to be sealed is a substation terminal box or control cabinet; an outer door frame is provided between the bottom of the substation terminal box or control cabinet and the opening of the cabinet door bag. The opening of the sealing bag body is locked in the position of this outer door frame by the locking member 6, so as to completely wrap the opening of the cabinet door bag body and prevent water from entering the cabinet from the cabinet door.

[0038] This device achieves its purpose through the following steps, ultimately forming a sealed cavity that meets the pressure balance requirements:

[0039] S1. Unfold the main body of the sealed bag and put the sealed bag body on the sealing element from top to bottom. Put the locking element 6 on the Velcro mother side 7 of the outer bag 3. By adjusting the locking degree of the locking element 6, the locking element 6 generates radial pressure on the bag opening of the sealed bag body to achieve the initial fixation of the outer bag 3.

[0040] S2. Then tighten the fastener 2 on the sealed bag body. On the one hand, this keeps the inner bag 4 and the outer bag 3 in a close fit. On the other hand, after the fastener 2 is tightened, it ensures that the inner bag 4 has a cavity between adjacent fasteners 2 and that the cavity contains a sufficient amount of air.

[0041] S3. Fold the inner bag 4 outward and upward to fix the inner bag 4 outward to the outer bag 3 via the hook and loop fastener male side 1, thus completing the installation of the sealed bag body.

[0042] After the sealing cavity inside the sealed bag is formed, when the external water body submerges the opening of the sealed bag body, the air inside the sealing cavity is compressed to generate reverse pressure, thereby resisting water penetration and achieving flood prevention sealing.

[0043] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A flood-proof sealing bag for a substation terminal box control cabinet, characterized in that, It includes a sealing bag body, the internal cavity of which is larger than the object to be sealed, and a locking device at the opening of the sealing bag body. In the working state, the sealing bag body is fitted with the opening facing down on the outside of the object to be sealed, and the locking device is used to press and fix the inner wall of the opening of the sealing bag body to the outer wall of the object to be sealed.

2. The flood control sealing bag for substation terminal box control cabinet according to claim 1, characterized in that, A non-slip layer is provided on the inner wall of the sealed bag body at the bag opening, along the bag opening.

3. The flood control sealing bag for substation terminal box control cabinet according to claim 1, characterized in that, At least one set of counterweights can be detachably installed on the outer wall of the sealed bag body near the bag opening. Multiple sets of counterweights are arranged along the depth direction of the sealed bag body, and each set of counterweights includes multiple counterweights evenly arranged along the circumference of the sealed bag body.

4. The flood control sealing bag for substation terminal box control cabinet according to claim 1, characterized in that, The sealed bag body includes an inner bag and an outer bag. The outer bag is fitted over the inner bag, and the inner bag and outer bag are fixedly connected by fasteners. The inner bag is waterproof and sealed.

5. The flood control sealing bag for substation terminal box control cabinet according to claim 4, characterized in that, On the inner bag wall near the bag opening, an outward-folding section and an anti-slip section are arranged sequentially from the edge of the bag opening along the depth direction of the inner bag. The widths of the outward-folding section and the anti-slip section are matched and both are larger than the size of the locking component. The inner bag has a hook and loop fastener male face fixed on the outer wall of the outward-folding section, and an anti-slip layer fixed on the inner wall of the anti-slip section. The outer bag has a hook and loop fastener female face on the outer wall at the bag opening end that matches the hook and loop fastener male face. In the working state, the locking component is fitted onto the position of the hook and loop fastener female face of the outer bag.

6. The flood control sealing bag for substation terminal box control cabinet according to claim 5, characterized in that, The outer bag is less deep than the inner bag, so that when the outer bag is fitted over the inner bag, the position of the Velcro fastener matches the position of the anti-slip layer on the inner bag.

7. The flood control sealing bag for substation terminal box control cabinet according to claim 4, characterized in that, Liquid adhesive is used to fill the space between the inner and outer bags.

8. The flood control sealing bag for substation terminal box control cabinet according to claim 4, characterized in that, The outer bag has a hook assembly fixed on its outer wall near the bag opening. The hook assembly includes multiple hooks evenly arranged along the circumference of the sealed bag body, and the counterweight is detachably fixed to the hooks.

9. The flood control sealing bag for substation terminal box control cabinet according to claim 4, characterized in that, The outer bag has multiple annular channels sewn circumferentially on its inner wall near the bottom of the bag. The multiple annular channels are arranged along the depth direction of the outer bag. The size of the annular channels matches that of the locking element. The annular channels have inlets and outlets, and the locking element passes through the annular channels.

10. The flood-proof sealing bag for substation terminal box control cabinet according to any one of claims 1 to 9, characterized in that, Both the fixing and locking components are hose clamps.