A foldable and retractable PU duct storage device

By designing a foldable and retractable PU duct storage device, the problems of deformation and messiness during PU duct storage were solved by using support and auxiliary devices, achieving effective support and positioning, and improving storage management efficiency and ventilation system performance.

CN224278061UActive Publication Date: 2026-05-26YANCHENG LEHAHA PIPE IND TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANCHENG LEHAHA PIPE IND TECHNOLOGY CO LTD
Filing Date
2025-08-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In existing technologies, PU ducts are easily deformed by pressure from other objects during storage. The lack of proper support and storage methods leads to a decline in installation and usage effectiveness. Furthermore, the storage area is cluttered, making it time-consuming to find ducts and reducing work efficiency.

Method used

A foldable and retractable PU duct storage device was designed, comprising a support device and an auxiliary device. The support device consists of vertical plates, horizontal plates, rings, round rods, U-shaped frames, and L-shaped frames, while the auxiliary device consists of drive rods, drive plates, sliding rods, and torsion springs, which support and position the duct to prevent deformation and slippage.

Benefits of technology

It effectively supports and positions the ductwork, preventing deformation and slippage, saving storage space, improving storage management efficiency, facilitating duct access, and enhancing the performance and efficiency of the ventilation system.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of PU duct storage devices, specifically a foldable and retractable PU duct storage device. The utility model includes a duct body with a support device on its surface. The support device includes two vertical plates, one side of which is slidably connected to the surface of the duct body. A horizontal plate is fixedly connected to the side of the two vertical plates that are close to each other. A support plate is fixedly connected to the side of the two vertical plates that are close to each other. A ring is fixedly connected to one side of each vertical plate, and a circle is fixedly connected to the inner surface of the ring. This invention solves the problems of duct body deformation due to pressure from other objects, duct body deformation due to its own weight without proper support and storage, affecting the installation and use of the duct, leading to a decrease in the performance of the ventilation system, and the need to spend a lot of time searching for suitable duct bodies in cluttered storage areas without a dedicated support method, thus reducing work efficiency.
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Description

Technical Field

[0001] This utility model relates to the technical field of PU duct storage devices, and in particular to a foldable and retractable PU duct storage device. Background Technology

[0002] PU ducts are lightweight, flexible, elastic, and stretchable, while also possessing properties such as resistance to torsion, resistance to most chemicals, mineral oils, ozone, low temperatures, and aging. They are widely used in industries such as mining, agriculture, water conservancy, civil engineering, food, petroleum, chemicals, and sanitation, as well as in dynamic applications such as docks, oil tankers, petrochemical storage facilities, tank trucks, and chemical plants. They are used for vacuum suction of powders and particles, conveying water, oil, chemical materials, and food, and can also be used for agricultural irrigation and indoor gas, powder, and dust absorption and emission. However, in practical applications, traditional duct storage methods present many problems for foldable and stretchable PU ducts; for example, the lack of specialized storage solutions... When storing PU ducts, haphazard placement makes them susceptible to damage from impacts and compression. Prolonged exposure to harsh environments can also lead to rust and corrosion. Furthermore, the large size of ducts means that random stacking consumes significant space, resulting in cluttered storage areas that are difficult to manage and locate, wasting considerable time and reducing work efficiency. Given the widespread use of PU ducts and the shortcomings of existing storage methods, a specialized storage device is needed to address these issues. This device must not only protect the PU ducts from damage but also facilitate storage and management, save storage space, and allow for easy retrieval and transport of the ducts, thereby improving work efficiency and meeting the storage needs of various industries.

[0003] Regarding the above-mentioned and existing related technologies, the inventor believes that the following defects often exist: the duct body is deformed by pressure from other objects; the duct body does not have a proper support and storage method and will deform due to its own weight, affecting the installation and use of the duct and leading to a decrease in the performance of the ventilation system; there is no special support method, and a lot of time needs to be spent searching for suitable duct bodies in a cluttered storage area, which reduces work efficiency; therefore, a foldable and retractable PU duct storage device is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as duct deformation due to pressure from other objects, lack of proper support and storage, deformation due to weight, impacting installation and use, leading to decreased ventilation system performance, and the need to spend considerable time searching for suitable ducts in cluttered storage areas due to the lack of dedicated support methods, thus reducing work efficiency. Therefore, this invention proposes a foldable and retractable PU duct storage device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a foldable and retractable PU duct storage device, comprising a duct body, a support device provided on the surface of the duct body, the support device comprising two vertical plates, one side of the two vertical plates being slidably connected to the surface of the duct body, a horizontal plate being fixedly connected to the side of the two vertical plates that are close to each other, a support plate being fixedly connected to the side of the two vertical plates that are close to each other, a ring being fixedly connected to one side of the vertical plates, a round rod being fixedly connected to the inner surface of the ring, a U-shaped frame being fixedly connected to one side of the two vertical plates, and an L-shaped frame being fixedly connected to one side of the vertical plates.

[0006] The aforementioned components achieve the following effects: by setting up support devices, the duct body is supported, preventing it from being deformed by pressure from other objects. Without proper support and storage, the duct body will deform due to its own weight, affecting the installation and use of the duct and leading to a decline in the performance of the ventilation system. Without a dedicated support method, a lot of time needs to be spent searching for suitable duct bodies in cluttered storage areas, which reduces work efficiency.

[0007] Preferably, the L-shaped frame has a threaded rod inserted into its internal thread, and one end of the threaded rod is rotatably connected to an extrusion plate.

[0008] The effect achieved by the above components is: rotating the threaded rod pushes the extrusion plate to limit the duct body, preventing the duct body from slipping.

[0009] Preferably, a guide rod is slidably inserted into the L-shaped frame, and one end of the guide rod is fixedly connected to the extrusion plate.

[0010] The effect achieved by the above components is that the threaded rod rotates within the L-shaped frame, and the extrusion plate drives the guide rod to slide within the L-shaped frame, thus preventing the extrusion plate from rotating along with the threaded rod.

[0011] Preferably, a fixing rod is fixedly connected to the surface of the U-shaped frame, and a blocking frame is rotatably connected to the arc surface of the fixing rod. A limiting rod is slidably inserted into the blocking frame.

[0012] The effect achieved by the above components is as follows: since the duct body is a circular structure, by setting up a blocking frame to block the duct body, the duct body can be prevented from slipping during the support process.

[0013] Preferably, the surface of the vertical plate is provided with an auxiliary device, which includes two drive rods. Both drive rods are fixedly connected to the surface of the vertical plate. The arc surface of the drive rod is rotatably connected to a drive plate. The surface of the drive plate is provided with an elliptical hole. The inner surfaces of the two elliptical holes are slidably connected to a sliding rod. The arc surface of the rod is rotatably connected to a moving plate.

[0014] The effect achieved by the above-mentioned components is as follows: by setting up auxiliary devices, the duct body is positioned, preventing the duct body from slipping and deforming. When the duct body slips, the surface will be dented, bent and deformed. In particular, some duct bodies made of softer materials are more likely to be significantly deformed when they fall. This will not only affect the appearance of the duct body, but also cause problems in the connection between the duct body and other components, affecting sales.

[0015] Preferably, the arc surface of the drive rod is fitted with a torsion spring, and the two ends of the torsion spring are fixedly connected to one side of the vertical plate and one side of the drive plate, respectively.

[0016] The effect achieved by the above components is that when the drive plate is not needed, the torque of the torsion spring drives the drive plate to rotate, reducing the space occupied by the device.

[0017] Preferably, a positioning hole is provided on one side of the movable plate, and a positioning rod is slidably inserted into the inner surface of the positioning hole.

[0018] The effect achieved by the above components is that the positioning rod limits the sliding rod and the moving plate, preventing the sliding rod from sliding during use.

[0019] In summary, the beneficial effects of this utility model are as follows:

[0020] 1. In this utility model, by setting a support device, the effect of supporting the duct body is achieved, avoiding the deformation of the duct body due to pressure from other objects. Without proper support and storage, the duct body will deform due to its own weight, affecting the installation and use of the duct, and causing a decline in the performance of the ventilation system. Without a dedicated support method, a lot of time needs to be spent searching for a suitable duct body in a cluttered storage area, which will reduce work efficiency.

[0021] 2. In this utility model, by setting an auxiliary device, the duct body is positioned, which avoids the duct body from slipping and deforming. When the duct body slips, the surface will be deformed such as dents and bends. In particular, some duct bodies made of softer materials are more likely to be significantly deformed when they fall. This will not only affect the appearance of the duct body, but also cause problems in the connection between the duct body and other components, affecting sales. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the support device in this utility model;

[0024] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0025] Figure 4 This is a schematic diagram of the auxiliary device in this utility model.

[0026] Legend: 1. Duct body; 2. Support device; 201. Vertical plate; 202. Horizontal plate; 203. Support plate; 204. Ring; 205. Round rod; 206. U-shaped frame; 207. L-shaped frame; 208. Threaded rod; 209. Extrusion plate; 210. Guide rod; 211. Fixing rod; 212. Blocking frame; 213. Limiting rod; 3. Auxiliary device; 31. Drive rod; 32. Drive plate; 33. Elliptical hole; 34. Sliding rod; 35. Moving plate; 36. Torsion spring; 37. Positioning hole; 38. Positioning rod. Detailed Implementation

[0027] Reference Figure 1 As shown, this utility model provides a technical solution: a foldable and retractable PU duct storage device, including a duct body 1. A support device 2 is provided on the surface of the duct body 1. By setting the support device 2, the duct body 1 is supported, preventing deformation caused by pressure from other objects. Without proper support and storage, the duct body 1 will deform due to its own weight, affecting the installation and use of the duct and leading to a decrease in the performance of the ventilation system. Without a dedicated support method, a significant amount of time needs to be spent searching for a suitable duct body 1 in a cluttered storage area, reducing work efficiency. An auxiliary device 3 is provided on the surface of the vertical plate 201. By setting the auxiliary device 3, the duct body 1 is positioned, preventing it from slipping and deforming. If the duct body 1 slips, its surface will show dents, bends, and other deformations. Especially for duct bodies made of softer materials, significant deformation is more likely to occur upon falling, affecting not only the appearance of the duct body 1 but also the connection between the duct body 1 and other components, impacting sales.

[0028] The specific setup and function of its support device 2 and auxiliary device 3 will be described in detail below.

[0029] Reference Figure 2 and Figure 3As shown in this embodiment: the support device 2 includes two vertical plates 201. One side of each vertical plate 201 is slidably connected to the surface of the duct body 1. A horizontal plate 202 is fixedly connected to the side of each vertical plate 201 that is close to each other. A support plate 203 is fixedly connected to the side of each vertical plate 201 that is close to each other. A ring 204 is fixedly connected to one side of each vertical plate 201. A round rod 205 is fixedly connected to the inner surface of the ring 204. A U-shaped frame 206 is fixedly connected to one side of each vertical plate 201. An L-shaped frame 207 is fixedly connected to one side of each vertical plate 201. A threaded rod 208 is threadedly inserted into the L-shaped frame 207. One end of the threaded rod 208 is rotatably connected to a pressing plate 209. Rotating the threaded rod 208 pushes the pressing plate 209 to limit the duct body 1, preventing the duct body 1 from slipping. A guide rod 210 is slidably inserted into the L-shaped frame 207. One end of the guide rod 210 is fixedly connected to the pressing plate 209. The threaded rod 208 rotates within the L-shaped frame 207, and the extrusion plate 209 drives the guide rod 210 to slide within the L-shaped frame 207, preventing the extrusion plate 209 from rotating along with the threaded rod 208. A fixing rod 211 is fixedly connected to the surface of the U-shaped frame 206, and a blocking frame 212 is rotatably connected to the arc surface of the fixing rod 211. A limiting rod 213 is slidably inserted within the blocking frame 212. Since the duct body 1 has a circular structure, the blocking frame 212 is used to block the duct body 1, preventing it from slipping during support.

[0030] Reference Figure 4 As shown, specifically, the auxiliary device 3 includes two drive rods 31, both of which are fixedly connected to the surface of the vertical plate 201. A drive plate 32 is rotatably connected to the arc surface of the drive rods 31. Elliptical holes 33 are formed on the surface of the drive plate 32, and sliding rods 34 are slidably connected to the inner surfaces of the two elliptical holes 33. A movable plate 35 is rotatably connected to the arc surface of the round rod 205. A torsion spring 36 is fitted onto the arc surface of the drive rods 31, with both ends of the torsion spring 36 fixedly connected to one side of the vertical plate 201 and one side of the drive plate 32, respectively. When the drive plate 32 is not needed, the torque of the torsion spring 36 drives the drive plate 32 to rotate, reducing the space occupied by the device. A positioning hole 37 is formed on one side of the movable plate 35, and a positioning rod 38 is slidably inserted into the inner surface of the positioning hole 37. The positioning rod 38 limits the sliding rod 34 and the movable plate 35, preventing the sliding rod 34 from sliding during use.

[0031] Working principle: When the operator needs to use the support device 2 to support the duct body 1, firstly, the sliding limit rod 213 slides within the blocking frame 212 and the U-shaped frame 206 until the limit rod 213 slides out of the U-shaped frame 206. Then, the blocking frame 212 rotates on the arc surface of the fixed rod 211. After the blocking frame 212 rotates 180 degrees, the duct body 1 is placed on the surface of the U-shaped frame 206, and both ends of the duct body 1 are placed on the inner surface of the L-shaped frame 207. Under the support of the vertical plate 201, the horizontal plate 202, and the support plate 203, the duct body 1 is... The duct body 1 is stabilized on the surface of the U-shaped frame 206. The rotating threaded rod 208 rotates on the inner surface of the L-shaped frame 207, thereby driving the extrusion plate 209 to move forward under the guidance of the guide rod 210. When the extrusion plate 209 tightly extrudes the duct body 1, the rotating blocking frame 212 rotates on the arc surface of the fixed rod 211. After the blocking frame 212 rotates 180 degrees, the sliding limit rod 213 slides within the blocking frame 212 and the U-shaped frame 206 until the limit rod 213 enters the U-shaped frame 206, thus completing the support of the duct body 1.

[0032] When the staff needs to use the auxiliary device 3 to position the duct body 1, the two drive plates 32 rotate on the arc surface of the drive rod 31 respectively, and the torsion spring 36 rotates. When the drive plate 32 rotates to the appropriate position, the sliding rod 34 slides on the inner surface of the elliptical hole 33 until it reaches the other side of the elliptical hole 33. Then, the moving plate 35 rotates on the arc surface of the round rod 205, and the sliding rod 34 is placed into the groove of the moving plate 35. The sliding positioning rod 38 slides on the inner surface of the positioning hole 37. When the positioning rod 38 enters the sliding rod 3... Within 4, the sliding rod 34 and the moving plate 35 are limited, stabilizing the duct body 1 between the moving plate 35 and the vertical plate 201. When the staff does not use the auxiliary device 3, the sliding positioning rod 38 slides on the inner surface of the positioning hole 37. When the positioning rod 38 disengages from the sliding rod 34, the sliding rod 34 and the moving plate 35 are no longer limited, the torsion spring 36 rebounds, the drive plate 32 rotates on the arc surface of the drive rod 31, the sliding rod 34 slides on the inner surface of the elliptical hole 33, and the moving plate 35 automatically droops, reducing the space of the auxiliary device 3.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A foldable and retractable PU duct storage device, comprising a duct body (1), characterized in that: The surface of the duct body (1) is provided with a support device (2). The support device (2) includes two vertical plates (201). One side of the two vertical plates (201) is slidably connected to the surface of the duct body (1). A horizontal plate (202) is fixedly connected to the side of the two vertical plates (201) that is close to each other. A support plate (203) is fixedly connected to the side of the two vertical plates (201) that is close to each other. A ring (204) is fixedly connected to one side of the vertical plate (201). A round rod (205) is fixedly connected to the inner surface of the ring (204). A U-shaped frame (206) is fixedly connected to one side of the two vertical plates (201). An L-shaped frame (207) is fixedly connected to one side of the vertical plate (201).

2. The foldable and retractable PU duct storage device according to claim 1, characterized in that: The L-shaped frame (207) has a threaded rod (208) inserted into its internal thread, and one end of the threaded rod (208) is rotatably connected to an extrusion plate (209).

3. The foldable and retractable PU duct storage device according to claim 1, characterized in that: A guide rod (210) is slidably inserted inside the L-shaped frame (207), and one end of the guide rod (210) is fixedly connected to the extrusion plate (209).

4. The foldable and retractable PU duct storage device according to claim 1, characterized in that: A fixing rod (211) is fixedly connected to the surface of the U-shaped frame (206), and a blocking frame (212) is rotatably connected to the arc surface of the fixing rod (211). A limiting rod (213) is slidably inserted inside the blocking frame (212).

5. The foldable and retractable PU duct storage device according to claim 1, characterized in that: The surface of the vertical plate (201) is provided with an auxiliary device (3), which includes two drive rods (31). Both drive rods (31) are fixedly connected to the surface of the vertical plate (201). The arc surface of the drive rod (31) is rotatably connected to a drive plate (32). The surface of the drive plate (32) is provided with an elliptical hole (33). The inner surfaces of the two elliptical holes (33) are slidably connected to a sliding rod (34). The arc surface of the round rod (205) is rotatably connected to a moving plate (35).

6. The foldable and retractable PU duct storage device according to claim 5, characterized in that: The arc surface of the drive rod (31) is fitted with a torsion spring (36), and the two ends of the torsion spring (36) are fixedly connected to one side of the vertical plate (201) and one side of the drive plate (32), respectively.

7. A foldable and retractable PU duct storage device according to claim 5, characterized in that: A positioning hole (37) is provided on one side of the movable plate (35), and a positioning rod (38) is slidably inserted into the inner surface of the positioning hole (37).