Strip-shaped sealing structure, strip-shaped sealing method and application of strip-shaped sealing structure and strip-shaped sealing method in storage roadway

Abstract

The invention discloses a strip-shaped sealing structure, a strip-shaped sealing method and application of the strip-shaped sealing structure and the strip-shaped sealing method in a storage roadway. The structure comprises a sealing device main body (1), a convex pressing strip (2) and a concave pressing strip (3), wherein the sealing device main body (1) is clamped between the convex pressing strip (2) and the concave pressing strip (3); the convex pressing strip (2) is provided with a first boss (21) and a first groove (22), and the concave pressing strip (3) is provided with a second boss (31) and a second groove (32). The method comprises the steps that the sealing device body (1) is in a strip shape through diagonal pulling and merging, the convex pressing strip (2) and the concave pressing strip (3) are symmetrically pressed, the first boss (21) is embedded into the second groove (32), the second boss (31) is embedded into the first groove (22), and the sealing device body (1) forms a folded labyrinth type sealing path. The sealing structure is suitable for sealing an inlet and / or an outlet of a stereoscopic warehouse roadway, a clean room channel or a special article warehouse roadway.

Description

Technical Field

[0001] This invention belongs to the field of sealing technology, specifically relating to a strip-shaped sealing structure, a strip-shaped sealing method, and its application in storage tunnels. Background Technology

[0002] In fields such as automated warehousing, cleanrooms, or special item storage, storage aisles are required. To prevent interference between the environments inside and outside the aisles, or to maintain the cleanliness and pressure balance of specific areas, the entrances and exits of these aisles need to be effectively sealed.

[0003] Currently, the common methods for sealing off alleyway entrances and exits are as follows, but all of them have certain shortcomings:

[0004] 1. Standard roller shutter / sliding door:

[0005] These types of doors are typically made of metal or rigid materials. While they maintain a certain level of sealing, their thickness and volume occupy horizontal or vertical space at the entrance of the passageway, potentially obstructing the operation of automated handling equipment such as stacker cranes, AGVs, and shuttle cars, thus affecting the normal layout and passage efficiency of the equipment. Furthermore, the sealing strips of rigid doors are usually single-layered and flat, making them prone to wear and aging over time, leading to a decline in sealing performance.

[0006] 2. PVC door curtain:

[0007] Flexible PVC curtain doors are thin and make minimal obstruction to equipment passage. Their sealing mechanism primarily relies on the overlap of the curtain slats or the compression between the curtain and the door frame. This sealing method has limited sealing performance and is unsuitable for environments with extremely high pressure differential or cleanliness requirements. Furthermore, flexible curtain doors typically require manual closing, have low automation, and are prone to deformation and damage after prolonged use, resulting in inconsistent sealing performance.

[0008] 3. Inflatable sealing door:

[0009] The door is sealed by filling the cavity between the door and the frame with gas to form an airbag. This method provides a good seal, but it requires a stable gas source, consumes a lot of energy, and the seal fails quickly if there is a leak. Furthermore, its structure is relatively complex, its cost is high, and it is not conducive to the smooth passage of automated equipment.

[0010] 4. Traditional folding sealing device:

[0011] Flexible materials are used for folding, but the structure is often simple, with few sealing layers, or the fixing and tensioning of the sealing materials are unreasonable, resulting in poor sealing or easy damage, and it is difficult to adapt to the slight deformation or unevenness that may exist at the tunnel entrance.

[0012] Therefore, there is an urgent need for a new type of tunnel sealing structure and sealing method that can minimize the encroachment on the working space of automated equipment while ensuring high sealing performance, without hindering the smooth passage of automated equipment, with a simple and reliable structure, easy maintenance, and the ability to maintain a good sealing effect for a long time.

[0013] To address the aforementioned problems, this invention is proposed. Summary of the Invention

[0014] The purpose of this invention is to overcome the shortcomings of the prior art and provide a strip-shaped sealing structure, a strip-shaped sealing method, and its application in storage tunnels.

[0015] To achieve the above objectives, the present invention adopts the following technical solution:

[0016] The first aspect of the present invention provides a strip-shaped sealing structure, comprising: a sealing device body (1), a convex pressure strip (2), and a concave pressure strip (3).

[0017] The sealing device body (1) is located between the convex pressure strip (2) and the concave pressure strip (3);

[0018] The convex pressure strip (2) is provided with a plurality of first protrusions (21) along its length direction, and a first groove (22) is formed between adjacent first protrusions (21).

[0019] The concave pressure strip (3) is provided with a plurality of second protrusions (31) along its length direction, and a second groove (32) is formed between adjacent second protrusions (31) and on one side of the second protrusion (31) located at the end.

[0020] The first boss (21) is fitted inside the second groove (32), and the second boss (31) is fitted inside the first groove (22), so that the sealing device body (1) forms a multi-level folded labyrinth sealing path.

[0021] Preferably, the main body (1) of the sealing device is rectangular and made of rubber film, neoprene composite film, PVC composite film or TPU composite film, with a thickness of 0.8mm to 5mm.

[0022] Preferably, the bottom wall of the first groove (22) is provided with a sealing airbag (4).

[0023] Preferably, the convex strip (2) and concave strip (3) are made of metal or engineering plastic, and the surfaces of the convex strip (2) and concave strip (3) are also provided with a wear-resistant and corrosion-resistant coating, which is an anodized layer, a sprayed layer or an electroplated layer.

[0024] Preferably, the first boss (21) and the second boss (31), the first groove (22) and the second groove (32) are rectangular in shape.

[0025] A second aspect of the present invention provides a strip sealing method based on the above-described strip sealing structure, the method comprising the following steps:

[0026] (a) Connect diagonal pulling and merging mechanisms (100) to the two diagonal regions of the sealing device body (1) to apply diagonal pulling force to the sealing device body (1) so that the four sides of the sealing device body (1) are gathered and merged towards the center, so that the sealing device body (1) forms a strip.

[0027] (b) At least one pair of convex pressure strips (2) and concave pressure strips (3) are arranged on both sides of the strip-shaped sealing device body (1), and the convex pressure strips (2) and the concave pressure strips (3) are symmetrically pressed together so that the strip-shaped sealing device body (1) is clamped and compacted; wherein, after pressing, the first boss (21) is fitted into the second groove (32), and the second boss (31) is fitted into the first groove (22), so that the sealing device body (1) forms a multi-level folded labyrinth sealing path;

[0028] (c) The sealing airbag (4) disposed on the bottom wall of the first groove (22) is compressed during the pressing process in step (b) to fill the gap between the bottom wall of the first groove (22) and the strip-shaped sealing device body (1) and the top wall of the second boss (31) and enhance the seal.

[0029] Preferably, the diagonal pulling and merging mechanism (100) is a pull strap, pull rod, pull ring, or reinforcing rib.

[0030] A third aspect of the invention also provides the use of the strip-shaped sealing structure for installing the strip-shaped sealing at the entrance and / or exit of a storage tunnel.

[0031] Preferably, the storage aisles include automated storage and retrieval system (AS / RS) aisles, cleanroom material passageways, or special goods storage aisles.

[0032] The beneficial effects of this invention are:

[0033] Compared with existing ordinary roller shutters / sliding doors, soft curtain doors, inflatable sealing doors, and traditional folding sealing devices, the strip-shaped sealing structure and strip-shaped sealing method provided by this invention have at least the following beneficial effects:

[0034] 1. Multi-stage labyrinth seal significantly improves sealing performance and pressure differential resistance.

[0035] By interlocking the first boss (21) and the second groove (32) on the convex pressure strip (2) and the concave pressure strip (3), and the second boss (31) and the first groove (22), the main body (1) of the sealing device forms a multi-level folding labyrinth sealing path. The leakage channel is lengthened and multiple folding and throttling are generated, which effectively reduces gas / dust penetration. It is very suitable for sealing scenarios at the roadway entrance with high requirements for pressure difference and cleanliness, and achieves a high level of sealing effect.

[0036] 2. Airbag elasticity compensation enhances long-term sealing stability and adaptability.

[0037] A sealing airbag (4) is provided on the bottom wall of the first groove (22). When pressed, the sealing airbag (4) is compressed and generates elastic compensation, which can automatically fill the thickness tolerance and assembly gap of the sealing device body (1), reduce the sealing attenuation caused by wear, aging or slight deformation, effectively extend the service life, and avoid the problem of easy failure of traditional single-layer sealing strips.

[0038] 3. Strip-shaped compression molding, small space occupation, compatible with automated equipment.

[0039] This invention combines the main body (1) of the sealing device into a strip shape and clamps and compacts it with a convex pressure strip (2) and a concave pressure strip (3). After sealing, a narrow strip-shaped sealing area is formed, rather than a large-volume door or an outwardly convex airbag door structure. This significantly reduces the encroachment on the horizontal / vertical space of the roadway entrance, reduces the impact on the passage and layout of equipment such as stacker cranes, AGVs, and shuttle cars, and improves the passage efficiency and available space of the roadway entrance.

[0040] 4. Simple and reliable structure, convenient assembly and maintenance, and better overall cost.

[0041] It is mainly composed of a sealing device body (1), a convex pressure strip (2), a concave pressure strip (3), and an optional sealing airbag (4). It has fewer parts and, compared with the inflatable sealing door, it is highly dependent on a stable air source, has a complex structure, and consumes a lot of energy. This invention does not rely on a continuous air supply and can maintain a seal through the sealing airbag (4). It has less maintenance workload, lower failure risk, and more controllable overall usage cost.

[0042] 5. The sealing layer is expandable, facilitating configuration and upgrades as needed.

[0043] Through the multi-level structure of bosses / grooves and the elastic compensation of airbags (4), the present invention can achieve multiple sealing barriers without significantly increasing the volume. In roadway scenarios with different cleanliness levels and different pressure difference requirements, performance matching can be achieved by adjusting the pressure strip structure, the thickness of the main material, etc., which has good engineering adaptability and scalability. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the strip-shaped sealing structure provided by the present invention.

[0045] Figure 2 This is a schematic diagram of the strip-shaped sealing structure provided by the present invention before sealing is completed.

[0046] Figure 3 This is a schematic diagram of the diagonal pulling and merging mechanism and the main body of the sealing device in the strip sealing method provided by the present invention.

[0047] Figure 4 This is a schematic diagram of the structure of the diagonal pulling and merging mechanism after pulling the main body of the sealing device in the strip sealing method provided by the present invention.

[0048] The meanings of the reference numerals in each figure are as follows:

[0049] 1-Sealing device body; 2-convex pressure strip; 3-concave pressure strip; 4-Sealing airbag; 21-First boss; 22-First groove; 31-Second boss; 32-Second groove; Diagonal pulling and merging mechanism (100). Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the embodiments.

[0051] Those skilled in the art will understand that the following embodiments are for illustrative purposes only and should not be construed as limiting the scope of the invention. Where specific techniques or conditions are not specified in the embodiments, they are performed in accordance with the techniques or conditions described in technical literature in the field or according to product instructions. Materials or equipment whose manufacturers are not specified are all conventional products that can be obtained by purchase.

[0052] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. In the description of this invention, unless otherwise stated, “a plurality” means two or more. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0053] Example 1

[0054] like Figure 1-2 As shown, a strip-shaped sealing structure includes: a sealing device body (1), a convex pressure strip (2), and a concave pressure strip (3).

[0055] The sealing device body (1) is located between the convex pressure strip (2) and the concave pressure strip (3);

[0056] The convex pressure strip (2) has four first protrusions (21) along its length direction, and a first groove (22) is formed between adjacent first protrusions (21).

[0057] The concave pressure strip (3) has three second protrusions (31) along its length direction, and a second groove (32) is formed between adjacent second protrusions (31) and on one side of the second protrusion (31) at the end.

[0058] The first boss (21) is fitted inside the second groove (32), and the second boss (31) is fitted inside the first groove (22), so that the sealing device body (1) forms a multi-level folded labyrinth sealing path.

[0059] The main body (1) of the sealing device is rectangular, made of rubber membrane, and has a thickness of 3mm.

[0060] The bottom wall of the first groove (22) is provided with a sealing airbag (4).

[0061] The convex strip (2) and concave strip (3) are made of engineering plastics. The surfaces of the convex strip (2) and concave strip (3) are also provided with a wear-resistant and corrosion-resistant coating, which is a spray coating.

[0062] The first boss (21) and the second boss (31), the first groove (22) and the second groove (32) are rectangular in shape.

[0063] A strip sealing method based on the above-mentioned strip sealing structure, the method comprising the following steps:

[0064] (a) such as Figure 3 As shown, diagonal pulling and merging mechanisms (100) are connected to two diagonal regions of the sealing device body (1) to apply diagonal pulling force to the sealing device body (1), causing the four sides of the sealing device body (1) to converge and merge towards the center, forming a strip shape, as shown. Figure 4 As shown;

[0065] (b) At least one pair of convex pressure strips (2) and concave pressure strips (3) are arranged on both sides of the strip-shaped sealing device body (1), and the convex pressure strips (2) and the concave pressure strips (3) are symmetrically pressed together so that the strip-shaped sealing device body (1) is clamped and compacted; wherein, after pressing, the first boss (21) is fitted into the second groove (32), and the second boss (31) is fitted into the first groove (22), so that the sealing device body (1) forms a multi-level folded labyrinth sealing path;

[0066] (c) The sealing airbag (4) disposed on the bottom wall of the first groove (22) is compressed during the pressing process in step (b) to fill the gap between the bottom wall of the first groove (22) and the strip-shaped sealing device body (1) and the top wall of the second boss (31) and enhance the seal.

[0067] The diagonal pulling and merging mechanism (100) is a pull rod.

[0068] One application of the strip-shaped sealing structure is to install the strip-shaped seal at the entrance and / or exit position of a storage tunnel that is adapted to the cross-section of the strip-shaped seal.

[0069] The storage aisles include automated storage and retrieval system (AS / RS) aisles, cleanroom material passageways, or special goods storage aisles.

[0070] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A strip-shaped sealing structure, characterized in that, include: The sealing device body (1), the convex pressure strip (2), and the concave pressure strip (3); The sealing device body (1) is located between the convex pressure strip (2) and the concave pressure strip (3); The convex pressure strip (2) is provided with a plurality of first protrusions (21) along its length direction, and a first groove (22) is formed between adjacent first protrusions (21). The concave pressure strip (3) is provided with a plurality of second protrusions (31) along its length direction, and a second groove (32) is formed between adjacent second protrusions (31) and on one side of the second protrusion (31) located at the end. The first boss (21) is fitted inside the second groove (32), and the second boss (31) is fitted inside the first groove (22), so that the sealing device body (1) forms a multi-level folded labyrinth sealing path.

2. The strip-shaped sealing structure according to claim 1, characterized in that, The main body (1) of the sealing device is rectangular and made of rubber film, neoprene composite film, PVC composite film or TPU composite film with a thickness of 0.8mm to 5mm.

3. The strip-shaped sealing structure according to claim 2, characterized in that, The bottom wall of the first groove (22) is provided with a sealing airbag (4).

4. The strip-shaped sealing structure according to claim 1, characterized in that, The convex strip (2) and concave strip (3) are made of metal or engineering plastic. The surfaces of the convex strip (2) and concave strip (3) are also provided with a wear-resistant and corrosion-resistant coating, which is an anodized layer, a sprayed layer or an electroplated layer.

5. The strip-shaped sealing structure according to claim 3, characterized in that, The first boss (21) and the second boss (31), the first groove (22) and the second groove (32) are rectangular in shape.

6. A strip-shaped sealing method based on the strip-shaped sealing structure of claim 5, characterized in that, The method includes the following steps: (a) Connect diagonal pulling and merging mechanisms (100) to the two diagonal regions of the sealing device body (1) to apply diagonal pulling force to the sealing device body (1) so that the four sides of the sealing device body (1) are gathered and merged towards the center, so that the sealing device body (1) forms a strip. (b) At least one pair of convex pressure strips (2) and concave pressure strips (3) are arranged on both sides of the strip-shaped sealing device body (1), and the convex pressure strips (2) and the concave pressure strips (3) are symmetrically pressed together so that the strip-shaped sealing device body (1) is clamped and compacted; wherein, after pressing, the first boss (21) is fitted into the second groove (32), and the second boss (31) is fitted into the first groove (22), so that the sealing device body (1) forms a multi-level folded labyrinth sealing path; (c) The sealing airbag (4) disposed on the bottom wall of the first groove (22) is compressed during the pressing process in step (b) to fill the gap between the bottom wall of the first groove (22) and the strip-shaped sealing device body (1) and the top wall of the second boss (31) and enhance the seal.

7. The strip sealing method according to claim 6, characterized in that, The diagonal pulling and merging mechanism (100) is a pull strap, pull rod, pull ring or reinforcing rib.

8. The use of the strip-shaped sealing structure as described in any one of claims 1-5 in a storage tunnel, characterized in that, The strip seal is installed at the entrance and / or exit of the storage tunnel.

9. The use according to claim 8, characterized in that, The storage aisles include automated storage and retrieval system (AS / RS) aisles, cleanroom material passageways, or special goods storage aisles.

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