Foldable variable-diameter cloth bag air pipe

Abstract

The utility model relates to the technical field of air pipes, and discloses a foldable variable-diameter cloth bag air pipe which comprises a shell, an adjusting block is rotatably connected to the inner wall of the shell, a rotating rod is rotatably connected to the outer wall of the adjusting block, a sliding block is rotatably connected to the outer wall of the rotating rod, and a sliding strip is slidably connected to the inner wall of the sliding block. The outer wall of the sliding strip is fixedly connected to the inner wall of the shell, the outer wall of the sliding block is fixedly connected with a clamping block, the outer wall of the clamping block is slidably connected to the inner wall of the shell, the outer wall of the first spring is fixedly connected to the outer wall of a pawl, the inner wall of the pawl is fixedly connected with a pull rod, and the outer wall of the pull rod is slidably connected to the inner wall of a hollow column. A fixing assembly is arranged on the inner wall of the shell. According to the device, the adjusting block is pushed to push the rotating rod to rotate, the rotating rod can push the sliding block to slide on the inner wall of the sliding strip, the clamping block drives the telescopic ring to stretch out and draw back, the arranged adjusting block can accurately adjust the inner diameter of the cloth bag air pipe, and the effects of stable sealing and noise rising prevention are achieved.

Description

Technical Field

[0001] This utility model relates to the field of duct technology, and in particular to a foldable variable diameter fabric duct. Background Technology

[0002] Fabric ducts, also known as fiber fabric ducts or cloth ducts, are a type of ventilation duct system made of flexible fiber materials. Unlike traditional metal ducts, they utilize the breathability of the fabric or nozzle design to control airflow distribution and achieve air delivery. They are lightweight, flexible, and customizable.

[0003] The diameter of the foldable variable diameter fabric duct can be flexibly adjusted within a certain range. It can adapt to branch pipes without additional accessories. When not in use, it can be compressed and folded to a very small size, which is convenient for warehousing, transportation, temporary storage and reuse.

[0004] In the existing technology, the foldable variable diameter fabric duct requires adjustment of the fabric duct according to the interface size during installation. This is not only time-consuming and labor-intensive, but also prone to poor sealing due to improper operation. In addition, irregular cross-sections may occur, leading to increased airflow turbulence and noise. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a foldable variable diameter fabric duct, which aims to solve the problem that in the prior art, it is impossible to accurately adjust the interface size of the fabric duct during installation. This not only takes time and effort, but also leads to poor sealing due to improper operation, and irregular cross-sections, which result in increased airflow turbulence and noise.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A foldable variable diameter fabric duct includes an outer shell. An adjusting block is rotatably connected to the inner wall of the outer shell. A rotating rod is rotatably connected to the outer wall of the adjusting block. A slider is rotatably connected to the outer wall of the rotating rod. A slide bar is slidably connected to the inner wall of the slider. The outer wall of the slide bar is fixedly connected to the inner wall of the outer shell. A clamping block is fixedly connected to the outer wall of the slider. The outer wall of the clamping block is slidably connected to the inner wall of the outer shell. A ratchet is fixedly connected to the outer wall of the adjusting block. A pawl is engaged with the toothed end of the ratchet. A hollow column is slidably connected to the outer wall of the pawl. The outer wall of the hollow column is fixedly connected to the inner wall of the outer shell. The outer wall of the hollow column is slidably connected to the outer wall of the adjusting block. A spring is provided on the inner wall of the hollow column. The outer wall of the spring is fixedly connected to the outer wall of the pawl. A pull rod is fixedly connected to the inner wall of the pawl. The outer wall of the pull rod is slidably connected to the inner wall of the hollow column. A fixing assembly is provided on the inner wall of the outer shell.

[0008] Preferably, the fixing component includes a locking post, the outer wall of which is fixedly connected to the inner wall of the outer shell, a fixing plate is rotatably connected to the outer wall of the locking post, a telescopic ring is detachably installed on the inner wall of the clamping block, a fabric duct body is provided on the outer wall of the telescopic ring, a fixing ring is provided on the outer wall of the fabric duct body, and the outer wall of the fixing ring is slidably connected to the inside of the outer shell.

[0009] Preferably, the outer wall of the fixing ring is slidably connected to a sliding column, the outer wall of the sliding column is detachably fitted with a hollow block, and the inner wall of the hollow block is slidably connected to an mounting block.

[0010] Preferably, a sliding rod is fixedly connected to the outer wall of the mounting block, the outer wall of the sliding rod is slidably connected to the inner wall of the hollow block, and a second spring is provided on the inner wall of the hollow block, the right outer wall of the second spring being fixedly connected to the outer wall of the mounting block.

[0011] Preferably, the outer wall of the mounting block is rotatably connected to a rack, and the outer wall of the rack is slidably connected to the inner wall of the hollow block.

[0012] Preferably, the hollow block is connected to a sector gear by meshing teeth, and a connecting rod is fixedly connected to the outer wall of the sector gear.

[0013] Preferably, a fixed column is rotatably connected to the inner wall of the first connecting rod, the outer wall of the fixed column is fixedly connected to the inner wall of the hollow block, and a support block is rotatably connected to the outer wall of the first connecting rod.

[0014] Preferably, the outer wall of the support block is rotatably connected to a second connecting rod, the outer wall of the second connecting rod is rotatably connected to the inner wall of the hollow block, and the outer wall of the support block is detachably installed on the outer wall of the fixing ring.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, pushing the adjusting block causes it to rotate the rotating rod, which in turn pushes the slider to slide on the inner wall of the slide bar, causing the clamping block to extend and retract the telescopic ring. At the same time, the adjusting block drives the ratchet to rotate at the tooth end of the pawl. The adjusting block can precisely adjust the inner diameter of the fabric duct, achieving a stable seal and preventing noise increase.

[0017] 2. In this utility model, the fixed ring pushes the rack to slide, so that the rack drives the sector gear to rotate and drives the connecting rod to rotate synchronously. The connecting rod will drive the support block to clamp the fixed ring in the center. The support block can achieve the effect of quickly retracting the folded cloth bag air duct and can adjust the angle of the cloth bag air duct to achieve the effect of precise guiding and transmission. Attached Figure Description

[0018] Figure 1 This is a perspective view of the foldable variable diameter fabric duct proposed in this utility model;

[0019] Figure 2 This is a partial structural diagram of the rotating rod of the foldable variable diameter fabric duct proposed in this utility model;

[0020] Figure 3 This is a partial structural diagram of the ratchet of the foldable variable diameter fabric duct proposed in this utility model.

[0021] Figure 4 This is a partial structural diagram of the support block for the foldable variable diameter fabric duct proposed in this utility model.

[0022] Legend:

[0023] 1. Outer shell; 2. Adjusting block; 3. Rotating rod; 4. Slider; 5. Sliding bar; 6. Clamping block; 7. Ratchet; 8. Pad; 9. Hollow column; 10. Spring 1; 11. Pull rod; 12. Telescopic ring; 13. Fabric duct body; 14. Locking post; 15. Fixing plate; 16. Fixing ring; 17. Sliding column; 18. Hollow block; 19. Mounting block; 20. Sliding rod; 21. Spring 2; 22. Rack; 23. Sector gear; 24. Connecting rod 1; 25. Fixing column; 26. Support block; 27. Connecting rod 2. Detailed Implementation

[0024] The technical solutions of 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 some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Reference Figures 1-3This utility model provides an embodiment of a foldable variable diameter fabric duct, comprising a housing 1, an adjusting block 2 rotatably connected to the inner wall of the housing 1, a rotating rod 3 rotatably connected to the outer wall of the adjusting block 2, a slider 4 rotatably connected to the outer wall of the rotating rod 3, a sliding strip 5 slidably connected to the inner wall of the slider 4, the outer wall of the sliding strip 5 being fixedly connected to the inner wall of the housing 1, a clamping block 6 fixedly connected to the outer wall of the slider 4, the outer wall of the clamping block 6 being slidably connected to the inner wall of the housing 1, a ratchet 7 fixedly connected to the outer wall of the adjusting block 2, a pawl 8 meshing with the teeth of the ratchet 7, a hollow column 9 slidably connected to the outer wall of the pawl 8, the outer wall of the hollow column 9 being fixedly connected to the inner wall of the housing 1, and the outer wall of the hollow column 9 being slidably connected to... On the outer wall of the adjusting block 2, a spring 10 is provided on the inner wall of the hollow column 9. The outer wall of the spring 10 is fixedly connected to the outer wall of the pawl 8. A pull rod 11 is fixedly connected to the inner wall of the pawl 8. The outer wall of the pull rod 11 is slidably connected to the inner wall of the hollow column 9. A fixing component is provided on the inner wall of the outer shell 1. The fixing component includes a locking post 14. The outer wall of the locking post 14 is fixedly connected to the inner wall of the outer shell 1. A fixing plate 15 is rotatably connected to the outer wall of the locking post 14. A telescopic ring 12 is detachably installed on the inner wall of the clamping block 6. A fabric duct body 13 is provided on the outer wall of the telescopic ring 12. A fixing ring 16 is provided on the outer wall of the fabric duct body 13. The outer wall of the fixing ring 16 is slidably connected to the inside of the outer shell 1.

[0026] Specifically, rotating the adjusting block 2 on the inner wall of the outer casing 1 causes the adjusting block 2 to push the rotating rod 3 to rotate, which in turn pushes the slider 4 to slide on the inner wall of the slide bar 5. The slide bar 5 is fixed to the inner wall of the outer casing 1, achieving a stable sliding effect. By installing the telescopic ring 12 into the clamping block 6, the clamping block 6 pushes the telescopic ring 12 to extend or retract, allowing the telescopic ring 12 to drive the fabric duct body 13 to achieve a stable adjustment of its inner diameter. The adjusting block 2 drives the ratchet 7 to rotate on the toothed end of the pawl 8, and the pawl 8 slides on the inner wall of the hollow column 9, achieving a self-locking effect. Pulling the lever 11 causes the pawl 8 to slide away from the ratchet 7. At the same time, the pawl 8 compresses the spring 10. When the lever 11 is released, the spring 10 pushes the pawl 8 to reset and re-lock the ratchet 7, achieving a quick reset effect. When the fixing ring 16 is installed inside the housing 1, the fixing ring 16 can fold the fabric duct body 13, and at the same time, the fixing piece 15 locks the locking post 14, achieving a quick retraction of the fabric duct body 13. The adjustable block 2 can precisely adjust the inner diameter of the fabric duct, achieving a stable seal and preventing noise increase.

[0027] Reference Figure 1 and Figure 4A sliding column 17 is slidably connected to the outer wall of the fixed ring 16. A hollow block 18 is detachably installed on the outer wall of the sliding column 17. An installation block 19 is slidably connected to the inner wall of the hollow block 18. A sliding rod 20 is fixedly connected to the outer wall of the installation block 19. The outer wall of the sliding rod 20 is slidably connected to the inner wall of the hollow block 18. A second spring 21 is provided on the inner wall of the hollow block 18. The right outer wall of the second spring 21 is fixedly connected to the outer wall of the installation block 19. A rack 22 is rotatably connected to the outer wall of the installation block 19. The outer wall of the rack 22 is slidably connected to the inner wall of the hollow block 18.

[0028] Specifically, by installing the hollow block 18 onto the sliding column 17, and the sliding column 17 sliding on the outer wall of the fixing ring 16, the angle of the fabric duct body 13 can be adjusted. As the fixing ring 16 pushes the rack 22 to slide, it also pushes the mounting block 19 to slide synchronously on the inner wall of the hollow block 18, which can prevent it from falling off. The mounting block 19 pushes the sliding rod 20 to slide on the inner wall of the hollow block 18, and at the same time, the mounting block 19 will compress the spring 21. When the sliding rod 20 slides to the appropriate position, rotating the sliding rod 20 will cause the mounting block 19 to lock the hollow block 18, which can achieve a self-locking effect.

[0029] Reference Figure 4 The hollow block 18 is connected to a sector gear 23 by meshing at its toothed end. A connecting rod 24 is fixedly connected to the outer wall of the sector gear 23. A fixing post 25 is rotatably connected to the inner wall of the connecting rod 24. The outer wall of the fixing post 25 is fixedly connected to the inner wall of the hollow block 18. A support block 26 is rotatably connected to the outer wall of the connecting rod 24. A connecting rod 27 is rotatably connected to the outer wall of the support block 26. The outer wall of the connecting rod 27 is rotatably connected to the inner wall of the hollow block 18. The outer wall of the support block 26 is detachably installed on the outer wall of the fixing ring 16.

[0030] Specifically, the rack 22 drives the sector gear 23 to rotate, causing the sector gear 23 to drive the connecting rod 24 to rotate on the outer wall of the fixed column 25. The fixed column 25 is fixed on the inner wall of the hollow block 18, which can prevent the connecting rod 24 from falling off. The connecting rod 24 drives the support block 26 to rotate, so that the support block 26 clamps the fixing ring 16 in the center, which can achieve the effect of quick installation. The support block 26 drives the connecting rod 27 to rotate on the inner wall of the hollow block 18, which can prevent the support block 26 from falling off. The support block 26 can achieve the effect of quick retraction of the folded fabric duct and can adjust the angle of the fabric duct to achieve the effect of precise guidance and transmission.

[0031] Working principle: When the fabric duct is needed, the telescopic ring 12 connected to the fabric duct body 13 is installed into the clamping block 6. Then, the adjusting block 2 is pushed to rotate the rotating rod 3. The rotating rod 3 pushes the slider 4 to slide against the inner wall of the slide bar 5, which can prevent the slider 4 from falling off. The slider 4 pushes the clamping block 6 to slide, which can adjust the inner diameter of the telescopic ring 12. At the same time, the rotation of the adjusting block 2 will drive the ratchet 7 to rotate synchronously, so that the ratchet 7 rotates at the tooth end of the pawl 8, which can achieve a self-locking effect. Pulling the lever 11 causes the pawl 8 to slide against the inner wall of the hollow column 9. When the lever 11 is released, the spring 10 pushes the pawl 8 back to its original position, achieving a quick release of the self-locking mechanism. By installing the retaining ring 16 inside the outer casing 1 and having the retaining plate 15 lock the retaining post 14, the fabric duct body 13 can be quickly retracted. When the angle needs to be adjusted, the hollow block 18 is installed inside the sliding post 17. By sliding the sliding post 17 to the appropriate position, the support block 26 is aligned and clamps the retaining ring 16, thus achieving the desired effect. This design allows for rapid angle adjustment. The fixed ring 16 pushes the rack 22 to slide, causing the rack 22 to slide the slide rod 20 fixed to the inner wall of the mounting block 19, preventing it from falling off. Rotating the mounting block 19 to lock it into the hollow block 18 achieves a self-locking effect. The spring 21 pushes the mounting block 19, enabling rapid reset. The rack 22 drives the sector gear 23 to rotate, causing the sector gear 23 to rotate the connecting rod 24 on the outer wall of the fixed column 25, which is fixed to the inner wall of the hollow block 18, ensuring stable rotation. The connecting rod 24 pushes the support block 26 to clamp the fixed ring 16, causing the support block 26 to rotate the connecting rod 27 on the inner wall of the hollow block 18, preventing it from falling off. This fabric duct not only allows for precise adjustment of the inner diameter of the fabric duct, achieving stable sealing and preventing noise increase, but also enables rapid retraction and folding of the fabric duct, and allows for adjustment of the angle of the fabric duct, achieving precise guiding and transmission.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foldable variable diameter fabric duct, comprising an outer shell (1), characterized in that: An adjusting block (2) is rotatably connected to the inner wall of the outer shell (1). A rotating rod (3) is rotatably connected to the outer wall of the adjusting block (2). A slider (4) is rotatably connected to the outer wall of the rotating rod (3). A slide bar (5) is slidably connected to the inner wall of the slider (4). The outer wall of the slide bar (5) is fixedly connected to the inner wall of the outer shell (1). A clamping block (6) is fixedly connected to the outer wall of the slider (4). The outer wall of the clamping block (6) is slidably connected to the inner wall of the outer shell (1). A ratchet (7) is fixedly connected to the outer wall of the adjusting block (2). The teeth of the ratchet (7) are engaged with... A pawl (8) is provided with a hollow column (9) slidably connected to its outer wall. The outer wall of the hollow column (9) is fixedly connected to the inner wall of the outer shell (1). The outer wall of the hollow column (9) is slidably connected to the outer wall of the adjusting block (2). A spring (10) is provided on the inner wall of the hollow column (9). The outer wall of the spring (10) is fixedly connected to the outer wall of the pawl (8). A pull rod (11) is fixedly connected to the inner wall of the pawl (8). The outer wall of the pull rod (11) is slidably connected to the inner wall of the hollow column (9). A fixing component is provided on the inner wall of the outer shell (1).

2. The foldable variable diameter fabric duct according to claim 1, characterized in that: The fixing component includes a locking post (14), the outer wall of which is fixedly connected to the inner wall of the outer shell (1), a fixing piece (15) is rotatably connected to the outer wall of the locking post (14), a telescopic ring (12) is detachably installed on the inner wall of the clamping block (6), a fabric duct body (13) is provided on the outer wall of the telescopic ring (12), a fixing ring (16) is provided on the outer wall of the fabric duct body (13), and the outer wall of the fixing ring (16) is slidably connected to the inside of the outer shell (1).

3. The foldable variable diameter fabric duct according to claim 2, characterized in that: The outer wall of the fixing ring (16) is slidably connected to a sliding column (17), the outer wall of the sliding column (17) is detachably mounted with a hollow block (18), and the inner wall of the hollow block (18) is slidably connected to an mounting block (19).

4. The foldable variable diameter fabric duct according to claim 3, characterized in that: The outer wall of the mounting block (19) is fixedly connected to a slide rod (20), the outer wall of the slide rod (20) is slidably connected to the inner wall of the hollow block (18), the inner wall of the hollow block (18) is provided with a second spring (21), and the right outer wall of the second spring (21) is fixedly connected to the outer wall of the mounting block (19).

5. The foldable variable diameter fabric duct according to claim 4, characterized in that: The outer wall of the mounting block (19) is rotatably connected to a rack (22), and the outer wall of the rack (22) is slidably connected to the inner wall of the hollow block (18).

6. The foldable variable diameter fabric duct according to claim 5, characterized in that: The hollow block (18) is connected to a sector gear (23) by meshing at the tooth end, and a connecting rod (24) is fixedly connected to the outer wall of the sector gear (23).

7. The foldable variable diameter fabric duct according to claim 6, characterized in that: The inner wall of the connecting rod (24) is rotatably connected to a fixed column (25), the outer wall of the fixed column (25) is fixedly connected to the inner wall of the hollow block (18), and the outer wall of the connecting rod (24) is rotatably connected to a support block (26).

8. The foldable variable diameter fabric duct according to claim 7, characterized in that: The outer wall of the support block (26) is rotatably connected to the connecting rod two (27), and the outer wall of the connecting rod two (27) is rotatably connected to the inner wall of the hollow block (18). The outer wall of the support block (26) is detachably installed on the outer wall of the fixing ring (16).

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