A duct quick connector suitable for narrow space

Abstract

The application relates to the technical field of building construction, and discloses a duct quick connector suitable for narrow spaces, which comprises a wall body, a plurality of ducts arranged in a superposed mode in the wall body, a frame arranged at the edge of adjacent ducts, and a quick connecting assembly arranged on the frame. The quick connecting assembly comprises a nut, a bolt arranged in the nut, a sliding sleeve arranged outside the end of the bolt, and a pull rod arranged on the end surface of the sliding sleeve. A plurality of steering pull rods are further arranged on the pull rod, a fixing pull rod is arranged below each steering pull rod, and a U-shaped buckle connector is arranged between the fixing pull rod and the steering pull rod. The scheme has a novel structure, is simple and firm to install, light in weight, saves labor, and is simple, efficient and easy to operate. The scheme can effectively reduce labor intensity, speed up construction progress, and improve installation efficiency. In addition, each component is composed of a series of standardized components, all the components are completed by a factory by using a standardized production process, and the components have universality and interchangeability.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a quick connector for air ducts suitable for confined spaces. Background Technology

[0002] Construction refers to the construction, renovation, or expansion of buildings, structures, highways, railways, water conservancy, power, and other facilities, completed at a designated location and within a predetermined timeframe using various construction machinery, tools, materials, and components through a specific organizational structure. Construction is a complex and ever-changing field, involving knowledge from multiple disciplines, including architecture, structural engineering, civil engineering, mechanical engineering, and electrical engineering.

[0003] During duct installation in confined spaces, due to space limitations, duct joints on the wall side often require only two bolts for tightening. However, because tools cannot reach inside to tighten them, the middle bolt often fails to secure the connection. This situation frequently results in the middle bolt of the duct joint not being properly tightened, leading to quality and safety hazards such as air leaks, breaks, and severe vibrations throughout the ventilation duct.

[0004] In addition, due to poor air circulation in the confined space, people who are exposed to this area for a long time face a high safety risk.

[0005] Therefore, based on the above-mentioned technical problems, it is necessary for those skilled in the art to develop a quick connector for ducts suitable for confined spaces. Summary of the Invention

[0006] The purpose of this invention is to provide a quick-connect ductwork connector suitable for confined spaces. It can be used in ventilation shafts and confined spaces where walls are first constructed and then ductwork is installed, connecting the ductwork to the wall side. It allows for timely disassembly when ductwork needs maintenance or modification, and can be reused, effectively improving construction efficiency and reducing time spent in confined spaces.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a quick connector for ductwork suitable for confined spaces, comprising a wall, wherein multiple ducts are stacked within the wall, and a frame is provided at the edge of adjacent ducts. A quick connection assembly is provided on the frame, the quick connection assembly comprising a nut, a bolt inside the nut, a sliding sleeve outside the end of the bolt, a pull rod on the end face of the sliding sleeve, multiple steering pull rods on the pull rod, a fixed pull rod obliquely below each steering pull rod, and a U-shaped snap connector is provided between the fixed pull rod and the steering pull rod.

[0008] As a preferred technical solution, the U-shaped snap-fit ​​connector is composed of an upper snap-fit ​​and a lower snap-fit. The upper snap-fit ​​is movably connected to the steering tie rod via a rotating shaft, and the lower snap-fit ​​is connected to the fixed tie rod via a positioning bolt.

[0009] As a preferred technical solution, the fixed tie rod is connected to the frame via a positioning bolt, and the steering tie rod is connected to the tie rod via a positioning bolt.

[0010] As a preferred technical solution, the bolt end face is rotatably connected to the sliding sleeve, and the sliding sleeve is fixedly connected to the pull rod.

[0011] As a preferred technical solution, the pull rod is provided with multiple pull rod fixing rings, the pull rod fixing rings are slidably connected to the pull rod, and the pull rod fixing rings are connected to the air duct.

[0012] As a preferred technical solution, both ends of the steering tie rod are rotatably connected to the positioning bolt and the rotating shaft.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention relates to a quick-connect ductwork connector suitable for confined spaces. The quick-connect assembly features a bolt that moves along the nut during bolt rotation. This movement acts on a sliding sleeve, driving a pull rod. The pull rod's movement then exerts a force on a steering pull rod, causing it to rotate. This rotation controls the U-shaped snap-fit ​​connector, changing its orientation from parallel to the duct's angle steel frame to intersecting it. This allows the U-shaped snap-fit ​​connector to snap the angle steel frames of two duct sections together, achieving duct connection. This solution offers cost savings. Different connector models are available based on duct width, making it suitable for connecting wall-mounted ducts of various sizes and locations. Its high applicability allows for wide application in various duct connection projects, and its high turnover rate saves construction time and improves efficiency.

[0014] This invention is a quick-connector for ductwork in confined spaces. The solution features a novel structure, simple and secure installation, and lightweight components. Generally, only one worker is needed for installation and adjustment. The operation is simple and efficient, effectively reducing labor intensity, accelerating construction progress, and improving installation efficiency. Each component is composed of a series of standardized parts, all of which are manufactured in the factory using standardized production processes and mass-produced under a strict quality management system throughout the entire process, ensuring versatility and interchangeability.

[0015] This invention is a quick connector for ductwork suitable for confined spaces. This solution enables quick connection of ductwork joints in confined spaces. Using this device can effectively speed up construction progress and reduce the exposure time of personnel in unsafe conditions in confined spaces. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a quick connector for air ducts suitable for confined spaces; Figure 2 This is a schematic diagram of a duct quick connector assembly structure suitable for confined spaces. Figure 3 This is a partial structural diagram of a quick connector for ductwork suitable for confined spaces.

[0017] In the attached diagram, the following are the reference numerals: 1. Wall; 2. Air duct; 21. Frame; 31. Nut; 32. Bolt; 33. Sliding sleeve; 34. Tie rod; 35. Tie rod fixing ring; 36. Steering tie rod; 37. Positioning bolt; 38. Rotating shaft; 39. Fixed tie rod; 40. U-shaped snap connector. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification. Example

[0020] Please see Figure 1-3 As shown, this invention provides a quick-connector solution for ductwork in confined spaces: It includes a wall 1, within which multiple stacked ducts 2 are arranged. Each duct 2 has a frame 21 at its edge, and a quick-connect assembly is mounted on the frame 21. This quick-connect assembly consists of a nut 31, within which a bolt 32 is installed. A sliding sleeve 33 is provided on the outer end of the bolt 32, and a pull rod 34 is provided on the end face of the sliding sleeve 33. The end face of the bolt 32 is rotatably connected to the sliding sleeve 33, and the sliding sleeve 33 is fixedly connected to the pull rod 34.

[0021] The tie rod 34 is also equipped with multiple steering tie rods 36, and each steering tie rod 36 has a fixed tie rod 39 located diagonally below it. A U-shaped snap-fit ​​connector 40 is provided between the fixed tie rod 39 and the steering tie rod 36. This U-shaped snap-fit ​​connector 40 is composed of an upper snap and a lower snap, with the upper snap being movably connected to the steering tie rod 36 via a rotating shaft 38. Both ends of the steering tie rod 36 are rotatably connected to the positioning bolt 37 and the rotating shaft 38.

[0022] The lower latch and the fixed pull rod 39 are connected by a positioning bolt 37, a design that makes the connection more secure and prevents loosening due to external force. Furthermore, the U-shaped latch connector makes connection more convenient and quick; no tools are needed, simply snapping the upper and lower latches together completes the connection. This design not only improves work efficiency but also reduces operational difficulty, allowing anyone to easily complete the connection operation.

[0023] Furthermore, the design of duct 2 is also ingenious. Each edge of duct 2 is equipped with a frame 21, which not only increases the strength of duct 2 but also facilitates installation and disassembly. At the same time, the overlapping design of duct 2 makes full use of space, minimizing the space occupied by duct 2 within wall 1. This design is not only aesthetically pleasing but also practical, fully demonstrating the designer's ingenious conception and practical considerations.

[0024] In this embodiment, after the first section of duct 2 is installed and fixed, a pull rod 34 and a U-shaped snap connector 40 are installed on the wall-side frame 21 of the second section of duct 2 joint. This connector is installed on the frame 21 via a positioning bolt 37 and a fixing pull rod 39, providing a stable foundation for subsequent connections. One end of the steering pull rod 36 is fitted with the U-shaped snap connector 40, while the other end is connected to the pull rod 34. When the bolt 32 is rotated, the bolt 32 and nut 31 are threaded together, and the resulting tension causes the pull rod 34 to slide outwards from the duct 2. During this process, the steering pull rod 36 is driven to move, thereby controlling the direction of the U-shaped snap connector 40. This change in direction changes from being parallel to the frame 21 of the duct 2 to intersecting with the frame 2. This transformation process snaps the angle steel frames of the two sections of duct 2 together, thus achieving the purpose of connecting the duct 2. This design cleverly utilizes mechanical force, achieving a stable connection of the duct 2 through the cooperation of the pull rod and the U-shaped snap connector. This not only ensures a strong connection but also guarantees the smooth operation of the entire system.

[0025] Please see Figure 1-3 As shown, multiple tie rod retaining rings 35 are provided on the outer side of the tie rod 34, and these tie rod retaining rings 35 are distributed on the outside of the tie rod 34. Each tie rod retaining ring 35 is slidably connected to the tie rod 34, allowing the retaining ring to move freely on the tie rod. This design increases the flexibility of use. At the same time, the tie rod retaining rings 35 are connected to the air duct 2. This connection method effectively combines the air duct 2 with the tie rod 34 and the retaining rings 35 to form a stable and practical structure.

[0026] In this embodiment, when the pull ring 34 moves, it can slide along the pull rod fixing ring 35, thereby improving stability.

[0027] The working principle and usage process of this invention: After the invention is installed, it is operated according to the above implementation method until all working steps are completed.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0029] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick connector for ductwork suitable for confined spaces, characterized in that, The system includes a wall (1), within which multiple air ducts (2) are stacked. A frame (21) is provided at the edge of each adjacent air duct (2). A quick-connect assembly is provided on the frame (21). The quick-connect assembly includes a nut (31), with a bolt (32) inside the nut (31). A sliding sleeve (33) is provided on the outer end of the bolt (32). A pull rod (34) is provided on the end face of the sliding sleeve (33). Multiple steering pull rods (36) are provided on the pull rods (34). Each steering pull rod (36) has a fixed... A fixed pull rod (39) is provided with a U-shaped buckle connector (40) between the fixed pull rod (39) and the steering pull rod (36). The U-shaped buckle connector (40) is composed of an upper buckle and a lower buckle. The upper buckle is movably connected to the steering pull rod (36) through a rotating shaft (38). The lower buckle is connected to the fixed pull rod (39) through a positioning bolt (37). The fixed pull rod (39) is connected to the frame (21) through the positioning bolt (37). The steering pull rod (36) is connected to the pull rod (34) through the positioning bolt (37).

2. The quick connector for ductwork suitable for confined spaces according to claim 1, characterized in that: The end face of the bolt (32) is rotatably connected to the sliding sleeve (33), and the sliding sleeve (33) is fixedly connected to the pull rod (34).

3. The quick connector for ducts suitable for confined spaces according to claim 1, characterized in that: The pull rod (34) is provided with multiple pull rod fixing rings (35), which are slidably connected to the pull rod (34) and connected to the air duct (2).

4. A quick connector for ducts suitable for confined spaces according to claim 1, characterized in that: Both ends of the steering tie rod (36) are rotatably connected to the positioning bolt (37) and the rotating shaft (38).

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