A new type of air duct device
By combining guide rods, supports, flexible hoses, sealing rings, pressure plates, cylinders, and rubber guide sleeves, the problem of inconvenient connection between air ducts and static air chambers is solved, achieving fast, sealed, and energy-saving air duct connection, and reducing the difficulty and cost of equipment disassembly and assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOYANG TEXTILE MACHINERY
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-30
AI Technical Summary
In existing polypropylene melt-rolled nonwoven fabric equipment, the connection method between the air duct and the static air chamber has problems such as inconvenience in disassembly and assembly, large space occupation, poor sealing and high cost.
The system employs a combination structure of guide rods, supports, flexible hose fittings, sealing rings, pressure plates, cylinders, and rubber guide sleeves to achieve rapid connection and disconnection between the duct and the static air chamber. The flexible hose fittings are connected to the duct fittings with rivet nuts, and insulation cotton is used for heat preservation, ensuring sealing and energy-saving effects.
It enables quick and easy connection between air ducts and quiet air chambers, has a compact structure, occupies little space, has good sealing performance, and reduces the difficulty and cost of installation and maintenance.
Smart Images
Figure CN224433753U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polypropylene melt-rolled nonwoven fabric technology, specifically to a novel air duct device. Background Technology
[0002] With the increasing proportion of aging population in my country, the demand for hygiene materials such as adult diapers is constantly increasing, thus the market demand for polypropylene melt-bonded nonwoven fabric equipment is also increasing accordingly. With social development, technological advancements, and growing demand, equipment with better performance and higher output is more readily accepted by the market. In polypropylene melt-bonded nonwoven fabric equipment, the static air chamber needs to be moved before disassembling the spinning machine die head to allow space for disassembly and assembly. Currently, most nonwoven fabric equipment's cooling and stretching air inlet and outlet ducts (upper and lower, large and small ducts) are connected to the static air chamber separately by bolts. This rigid connection method is extremely inconvenient for disassembly and assembly and occupies a large space; alternatively, a cylinder-driven pressure plate is used with a circular hole in the pressure plate. However, if the hole is too large, the pressure plate's shaking during cylinder operation increases, easily causing poor sealing; if it is too small, the cylinder is prone to jamming and sluggish operation. The duct connection methods either involve machining threads on thick plates, which is costly; or welding nuts into thin plates, which involves complex welding processes and requires high dimensional accuracy in the welding position. Summary of the Invention
[0003] The purpose of this utility model is to address the problems in related technologies by proposing a novel air duct device for connecting to the static air chamber in a polypropylene melt-rolled nonwoven fabric equipment, thereby overcoming the aforementioned technical problems in existing related technologies.
[0004] The technical solution of this utility model is as follows: This utility model includes a duct connector, characterized in that it further includes a guide rod, a support, a retractable flexible hose, a sealing ring, a pressure plate, a cylinder, and a rubber guide sleeve. The pressure plate, the retractable flexible hose, and the duct connector are connected as a whole from left to right by bolts. The duct connector is covered with insulation cotton. The cylinder's support end is mounted on the duct connector, and the other end is connected to the pressure plate. The sealing ring is mounted on the left end face of the pressure plate. The rubber guide sleeve is mounted on the pressure plate. One end of the guide rod can movably pass through the rubber guide sleeve, and the other end is connected to the duct connector through the support. During operation, the cylinder can drive the pressure plate and the retractable flexible hose to move together, achieving rapid contact and disengagement with the still air chamber. The sealing ring on the pressure plate ensures a sealed connection with the still air chamber, and the insulation cotton can keep the circulating hot air warm to achieve energy saving. The rubber guide sleeve added to the pressure plate can play a good guiding role. Rubber is a soft material, which can ensure that when the cylinder drives the pressure plate to move on the guide rod shaft, the movement is smooth and without jamming, and the pressure plate will not wobble too much up, down and left and right, resulting in poor sealing when the pressure plate is attached.
[0005] Preferably, the flexible hose of the retractable hose fitting can be detached and installed using clamps, which can further reduce the difficulty of installation and maintenance.
[0006] As a preferred option, the flexible hose fitting and the duct connector are bolted together using rivets and nuts, which is simple and saves materials.
[0007] The beneficial effects of this utility model are as follows: This utility model is used for connection with the still air chamber, realizing a boltless sealed connection with the still air chamber, which can be quickly and freely docked, with a compact structure and small space occupation, and solves the problems existing in the industry mentioned above. Attached Figure Description
[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0009] Figure 1 : A schematic diagram of the structure of this utility model;
[0010] Figure 2 : Cross-sectional view of this utility model;
[0011] Figure 3 : Figure 2 AA section view;
[0012] Figure 4 : Figure 1 BB cross-sectional view:
[0013] Figure 5 : Figure 2 A magnified view of a portion of the image;
[0014] In the diagram: 1. Guide rod, 2. Clamp, 3. Support, 4. Telescopic flexible hose, 5. Sealing ring, 6. Pressure plate, 7. Flexible hose, 8. Cylinder, 9. Duct connector, 10. Insulation cotton, 11. Rivet nut, 12. Rubber guide sleeve. Detailed Implementation
[0015] like Figures 1 to 5As shown, this utility model includes a duct connector 9, characterized in that it also includes a guide rod 1, a support 3, a retractable flexible hose 4, a sealing ring 5, a pressure plate 6, a cylinder 8, and a rubber guide sleeve 12. The pressure plate 6, the retractable flexible hose 4, and the duct connector 9 are connected as a whole from left to right by bolts. The duct connector 9 is covered with insulation cotton 10. The support end of the cylinder 8 is installed on the duct connector 9, and the other end is connected to the pressure plate 6. The sealing ring 5 is installed on the left end face of the pressure plate 6. The rubber guide sleeve 12 is installed on the pressure plate 6. One end of the guide rod 1 can movably pass through the rubber guide sleeve 12, and the other end is connected to the duct connector 9 through the support 3. The hose 7 of the retractable flexible hose 4 can be detachably installed by a clamp 2. The retractable flexible hose 4 and the duct connector 9 are bolted together by a rivet nut 11.
[0016] During operation, cylinder 8 drives pressure plate 6 and retractable hose fitting 4 to move together, achieving rapid engagement and disengagement with the still air chamber. The sealing ring 5 on pressure plate 6 ensures a sealed connection with the still air chamber, while insulation cotton 10 keeps the circulating hot air warm for energy saving. The rubber guide sleeve 12 added to pressure plate 6 provides excellent guidance. Rubber, being a soft material, ensures smooth and uninterrupted movement of pressure plate 6 along guide rod 1 when cylinder 8 drives it, without excessive swaying that could lead to a poor seal during engagement. The hose 7 of retractable hose fitting 4 is detachable via clamp 2, further reducing installation and maintenance difficulty. The retractable hose fitting 4 and ductwork connector 9 are bolted together using rivet nuts 11, a simple and material-saving process.
[0017] The beneficial effects of this utility model are as follows: This utility model is used for connection with the still air chamber, realizing a boltless sealed connection with the still air chamber, which can be quickly and freely docked, with a compact structure and small space occupation, and solves the problems existing in the industry mentioned above.
[0018] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 new ducting device comprising a ducting joint (9), characterized in that It also includes a guide rod (1), a support (3), a retractable hose fitting (4), a sealing ring (5), a pressure plate (6), a cylinder (8), and a rubber guide sleeve (12). The pressure plate (6), the retractable hose fitting (4), and the duct connector (9) are connected as a whole from left to right by bolts. The duct connector (9) is wrapped with insulation cotton (10). The support end of the cylinder (8) is installed on the duct connector (9), and the other end is connected to the pressure plate (6). The sealing ring (5) is installed on the left end face of the pressure plate (6). The rubber guide sleeve (12) is installed on the pressure plate (6). One end of the guide rod (1) can move through the rubber guide sleeve (12), and the other end is connected to the duct connector (9) through the support (3).
2. A novel ducting device as claimed in claim 1, wherein The hose (7) of the retractable hose fitting (4) can be detachably installed via clamp (2).
3. A novel duct device according to claim 1 or 2, characterized in that... The flexible hose fitting (4) and the duct connector (9) are bolted together by a rivet nut (11).