High strength tear resistant air duct

Abstract

The utility model discloses a high strength tear -resistant wind tube, including fixed ring, the one side of fixed ring is provided with wind tube cloth subassembly, the upper end of wind tube cloth subassembly is provided with limit mechanism, wind tube cloth subassembly includes first anti -tear cloth layer, first polyvinyl chloride layer, base cloth, second polyvinyl chloride layer, second anti -tear cloth layer, reinforcing rib and reinforcing ring, limit mechanism includes fixed plate, guide rod, limit block and slide hole, first polyvinyl chloride layer is located the inner wall of base cloth, second polyvinyl chloride layer is located the outer wall of base cloth, second anti -tear cloth layer is located the outer wall of second polyvinyl chloride layer. The utility model discloses a high strength tear -resistant wind tube can strengthen base cloth strength through reinforcing rib and reinforcing ring, can improve the impact resistance and anti -tear performance through the setting of anti -tear cloth layer, polyvinyl chloride layer, can drive wind tube cloth subassembly to use stably and expand, brings better use prospect.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof mining, specifically a high-strength tear-resistant ventilation duct. Background Technology

[0002] Explosion-proof ventilation ducts for mines are ventilation devices specifically designed for mining environments. They possess explosion-proof, flame-retardant, and anti-static properties and are mainly used for local ventilation in underground projects such as coal mines, tunnels, and subways. Existing explosion-proof ventilation ducts for mines are prone to tearing during use, and because the ducts need to be stretched, uneven stretching affects their use and makes them easy to tear, which brings certain adverse effects to the user experience. Therefore, we propose a high-strength tear-resistant ventilation duct. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a high-strength tear-resistant duct, which has the advantages of strengthening the base fabric through reinforcing ribs and reinforcing rings, improving impact resistance and tear resistance through the setting of tear-resistant fabric layers and polyvinyl chloride layers, and enabling the duct fabric assembly to be smoothly deployed and used. It can effectively solve the problems in the background technology.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-strength tear-resistant duct includes a fixing ring, a duct fabric assembly is provided on one side of the fixing ring, a limiting mechanism is provided at the upper end of the duct fabric assembly, the duct fabric assembly includes a first tear-resistant fabric layer, a first polyvinyl chloride layer, a base fabric, a second polyvinyl chloride layer, a second tear-resistant fabric layer, reinforcing ribs and reinforcing rings, the limiting mechanism includes a fixing plate, a guide rod, a limiting block and a sliding hole, the first polyvinyl chloride layer is located on the inner wall of the base fabric, the second polyvinyl chloride layer is located on the outer wall of the base fabric, the second tear-resistant fabric layer is located on the outer wall of the second polyvinyl chloride layer, the first tear-resistant fabric layer is located on the inner wall of the first polyvinyl chloride layer, and the reinforcing ribs are located in the middle of the base fabric.

[0007] Preferably, the reinforcing ring is located in the middle of the reinforcing rib, and the two sets of fixing plates are located on the outer surfaces of the upper and lower ends of the fixing ring, respectively.

[0008] Preferably, the two sets of limiting blocks are located on the outer surfaces of the upper and lower ends of another set of fixing rings, the sliding hole is located in the middle of the limiting block, and the guide rod is located on the outer surface of one side of the fixing plate.

[0009] Preferably, the limiting block is slidably connected to the guide rod through a sliding hole.

[0010] (III) Beneficial Effects

[0011] Compared with the prior art, this utility model provides a high-strength tear-resistant duct with the following beneficial effects:

[0012] 1. This high-strength tear-resistant duct can strengthen the base fabric by reinforcing ribs and reinforcing rings.

[0013] 2. This high-strength tear-resistant duct improves impact resistance and tear resistance through the addition of tear-resistant fabric layers and polyvinyl chloride layers, enabling the duct fabric assembly to be deployed smoothly for use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a high-strength tear-resistant ventilation duct according to the present invention.

[0015] Figure 2 This is a side sectional view of a high-strength tear-resistant ventilation duct according to the present invention.

[0016] Figure 3 This is a frontal sectional view of a high-strength tear-resistant ventilation duct according to the present invention.

[0017] Figure 4 This utility model relates to a high-strength tear-resistant ventilation duct. Figure 1 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Fixing ring; 2. Ventilation duct fabric assembly; 3. Limiting mechanism; 4. First tear-resistant fabric layer; 5. First polyvinyl chloride layer; 6. Base fabric; 7. Second polyvinyl chloride layer; 8. Second tear-resistant fabric layer; 9. Reinforcing rib; 10. Reinforcing ring; 11. Fixing plate; 12. Guide rod; 13. Limiting block; 14. Sliding hole. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] This embodiment is a high-strength tear-resistant ventilation duct.

[0021] like Figure 1-4As shown, the device includes a fixing ring 1, a duct fabric assembly 2 on one side of the fixing ring 1, and a limiting mechanism 3 at the upper end of the duct fabric assembly 2. The duct fabric assembly 2 includes a first tear-resistant fabric layer 4, a first polyvinyl chloride layer 5, a base fabric 6, a second polyvinyl chloride layer 7, a second tear-resistant fabric layer 8, a reinforcing rib 9, and a reinforcing ring 10. The limiting mechanism 3 includes a fixing plate 11, a guide rod 12, a limiting block 13, and a sliding hole 14. The first polyvinyl chloride layer 5 is located on the inner wall of the base fabric 6, the second polyvinyl chloride layer 7 is located on the outer wall of the base fabric 6, the second tear-resistant fabric layer 8 is located on the outer wall of the second polyvinyl chloride layer 7, the first tear-resistant fabric layer 4 is located on the inner wall of the first polyvinyl chloride layer 5, and the reinforcing rib 9 is located in the middle of the base fabric 6.

[0022] The reinforcing ring 10 is located in the middle of the reinforcing rib 9, and the two sets of fixing plates 11 are located on the outer surfaces of the upper and lower ends of the fixing ring 1 respectively; the two sets of limiting blocks 13 are located on the outer surfaces of the upper and lower ends of the other fixing ring 1 respectively, the sliding hole 14 is located in the middle of the limiting block 13, and the guide rod 12 is located on the outer surface of one side of the fixing plate 11; the limiting block 13 is slidably connected to the guide rod 12 through the sliding hole 14.

[0023] It should be noted that this utility model is a high-strength tear-resistant duct. The structure is strengthened by setting reinforcing ribs 9 and reinforcing rings 10 inside the base fabric 6. The first polyvinyl chloride layer 5 and the second polyvinyl chloride layer 7 improve the impact resistance of the base fabric 6. The first tear-resistant fabric layer 4 and the second tear-resistant fabric layer 8 are high-strength fiber fabrics, typically made of high-density polyester or nylon. This fabric can withstand high-strength tensile and heavy-duty forces without damage and has excellent abrasion resistance and waterproof properties, thus improving tear resistance. By pulling the fixing ring 1, the duct fabric assembly 2 unfolds, simultaneously causing the limiting block 13 to slide along the guide rod 12 through the sliding hole 14, allowing the duct fabric assembly 2 to unfold for use. The reinforcing ribs 9 and reinforcing rings 10 strengthen the base fabric, and the tear-resistant fabric layer and polyvinyl chloride layer improve impact and tear resistance, enabling the duct fabric assembly 2 to unfold smoothly for use.

[0024] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength tear-resistant duct, comprising a retaining ring (1), characterized in that: A duct fabric assembly (2) is provided on one side of the fixing ring (1). A limiting mechanism (3) is provided at the upper end of the duct fabric assembly (2). The duct fabric assembly (2) includes a first tear-resistant fabric layer (4), a first polyvinyl chloride layer (5), a base fabric (6), a second polyvinyl chloride layer (7), a second tear-resistant fabric layer (8), a reinforcing rib (9), and a reinforcing ring (10). The limiting mechanism (3) includes a fixing plate (11), a guide rod (12), a limiting block (13), and a sliding hole (14). The first polyvinyl chloride layer (5) is located on the inner wall of the base fabric (6), the second polyvinyl chloride layer (7) is located on the outer wall of the base fabric (6), the second tear-resistant fabric layer (8) is located on the outer wall of the second polyvinyl chloride layer (7), the first tear-resistant fabric layer (4) is located on the inner wall of the first polyvinyl chloride layer (5), and the reinforcing rib (9) is located in the middle of the base fabric (6).

2. The high-strength tear-resistant duct according to claim 1, characterized in that: The reinforcing ring (10) is located in the middle of the reinforcing rib (9), and the two sets of fixing plates (11) are located on the upper and lower outer surfaces of the fixing ring (1).

3. The high-strength tear-resistant ventilation duct according to claim 2, characterized in that: The two sets of limiting blocks (13) are located on the outer surfaces of the upper and lower ends of another set of fixing rings (1), the sliding hole (14) is located in the middle of the limiting block (13), and the guide rod (12) is located on the outer surface of one side of the fixing plate (11).

4. A high-strength tear-resistant ventilation duct according to claim 3, characterized in that: The limiting block (13) is slidably connected to the guide rod (12) through the sliding hole (14).

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