A type of air duct with a telescopic structure

Abstract

This utility model relates to a duct with a telescopic structure, comprising a duct body and two telescopic tubes, each passing through one side of the duct body and slidably connected to it. Each telescopic tube has a mounting plate fixedly installed at one end, and both mounting plates are slidably connected inside the duct body. Each mounting plate has a through hole on its surface that matches the airflow of the telescopic tube. Movable components, including threaded rods and connecting rods, are installed on both sides of the duct body to facilitate the movement of the telescopic tubes. This utility model, through the movable components, allows for the movement of the telescopic tubes on both sides, achieving flexible adjustment of the duct length. This adapts to different installation spaces and connection requirements, solving the problem that traditional ducts are mostly fixed-length structures, which often cannot accurately adapt to various construction environments, resulting in poor applicability and low flexibility.

Description

Technical Field

[0001] This utility model relates to the field of industrial pipeline technology, and in particular to a duct with a telescopic structure. Background Technology

[0002] In modern architecture and industry, ventilation and air conditioning systems are not only an indispensable and important component, but also a key factor in ensuring indoor environmental quality and production efficiency. As a core component of ventilation and air conditioning systems, ductwork undertakes the crucial task of transporting air, and its performance directly affects the overall system's operational efficiency and comfort.

[0003] Traditional air ducts are mostly of fixed length. Fixed-length ducts are often difficult to adapt precisely to various construction environments, requiring on-site cutting, welding, or splicing. This not only increases installation difficulty and construction time, but may also lead to reduced airtightness and air leakage due to improper cutting or welding. Utility Model Content

[0004] In existing technologies, most traditional air ducts are fixed-length structures. Fixed-length air ducts are often difficult to precisely adapt to various construction environments, requiring on-site cutting, welding, or splicing. This not only increases installation difficulty and construction time but may also lead to reduced airtightness and air leakage due to improper cutting or welding. This utility model provides an air duct with a telescopic structure.

[0005] The technical solution adopted by this utility model is as follows: a duct with a telescopic structure, including a duct body and two telescopic tubes, each passing through one side of the duct body and slidably connected to one side of the duct body. One end of each of the two telescopic tubes is fixedly mounted with an mounting plate. Both mounting plates are slidably connected inside the duct body, and each mounting plate has a through hole on its surface that matches the airflow path of the telescopic tube. Movable components for moving the telescopic tubes are installed on both sides of the interior of the duct body. Each movable component includes a threaded rod and a connecting rod. The sliding connection between the two telescopic tubes and the duct body allows for flexible adjustment of the duct length, adapting to different installation spaces and connection requirements. The mounting plates slide inside the duct body and have through holes that match the airflow path of the telescopic tubes, ensuring the continuity of the airflow path during telescopic movement and reducing airflow resistance. The movable components facilitate the movement of the telescopic tubes, making adjustment operations more convenient and stable.

[0006] Furthermore, one end of the threaded rod is rotatably connected to the mounting plate on one side via a bearing seat. A movable block is threadedly connected to the surface of the threaded rod. The movable block is slidably connected inside the duct body, and the bottom of the movable block is fixedly connected to one side of the upper surface of the telescopic tube. The threaded connection between the threaded rod and the movable block converts rotational motion into linear motion, realizing precise movement of the telescopic tube and facilitating accurate control of the duct's extension and retraction length. The sliding connection between the movable block and the duct body, as well as the fixed connection with the telescopic tube, ensures the stability of the telescopic tube when it moves, preventing the telescopic tube from shifting or shaking during movement.

[0007] Furthermore, the connecting rod is fixedly installed between the mounting plate and one side of the inner wall of the duct body. A sliding block is slidably connected to the surface of the connecting rod. The sliding block is slidably connected inside the duct body. The upper surface of the sliding block is fixedly connected to the lower surface of the telescopic tube. The connecting rod provides a stable sliding track for the sliding block. The fixed connection between the sliding block and the telescopic tube, together with the threaded rod and the moving block, supports and guides the telescopic tube from different positions, further enhancing the stability and structural integrity of the telescopic tube during movement and reducing the risk of damage to the telescopic tube due to uneven force.

[0008] Furthermore, a handle is provided on one side of the duct body, and the handle is fixedly connected to the other end of the threaded rod. A sliding rod is slidably connected inside the handle, and the sliding rod passes through the handle. A limit rod is fixedly installed at one end of the sliding rod. Multiple limit grooves distributed in a circumferential array are opened on one side surface of the duct body. A limit block is fixedly installed at one end of the sliding rod, and the limit block is located on the outside of the handle. The handle makes it convenient for the operator to rotate the threaded rod, reducing the difficulty of operation. The cooperation of the sliding rod, the limit rod, and the limit groove can effectively limit and fix the telescopic tube after it is adjusted to a suitable position, preventing the telescopic tube from changing position due to external forces during use, and ensuring the stability of the duct operation. The limit block makes it easier for the operator to pull the sliding rod, making the limiting operation more convenient.

[0009] Furthermore, a return spring is fixedly installed on the surface of the sliding rod. After the operator releases the limiting block, the return spring can automatically push the sliding rod to return to its original position, allowing the limiting rod to quickly insert into the limiting groove, thereby achieving automatic limiting and fixing. This simplifies the operation steps, improves work efficiency, and also ensures the reliability of the limiting.

[0010] Furthermore, a connecting plate is fixedly installed at one end of each of the two telescopic pipes. The surface of the connecting plate is provided with multiple connecting holes arranged in a rectangular array. The connecting plate and connecting holes provide a convenient interface for connecting the telescopic pipe to other equipment or pipes, facilitating a quick and stable connection between the duct and related systems.

[0011] Furthermore, sealing rings are fixedly installed on both sides of the duct body. The sealing rings can effectively enhance the sealing of the connection between the duct body and the telescopic pipe, reduce air leakage at the connection, and improve the air delivery efficiency of the duct.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model, through the setting of a movable component, allows for the movement of the telescopic tubes on both sides, achieving flexible adjustment of the duct length. This adapts to different installation spaces and connection requirements, solving the problem that traditional ducts are mostly fixed-length structures. Fixed-length ducts often cannot accurately adapt to various construction environments, requiring on-site cutting, welding, or splicing. This not only increases installation difficulty and construction time but may also lead to reduced duct sealing and air leakage due to improper cutting or welding. Attached Figure Description

[0014] Figure 1 This is an overall drawing of the present invention;

[0015] Figure 2 This is a front sectional view of the present invention;

[0016] Figure 3 This is an enlarged view of point A of this utility model.

[0017] The following are marked in the diagram: 1. Duct body; 2. Telescopic pipe; 3. Mounting plate; 4. Through hole; 5. Moving component; 501. Threaded rod; 502. Moving block; 503. Connecting rod; 504. Sliding block; 505. Handle; 506. Sliding rod; 507. Limiting rod; 508. Limiting groove; 509. Limiting block; 510. Return spring; 6. Connecting plate; 7. Connecting hole; 8. Sealing ring. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", 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 utility model 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 limitations on this utility model.

[0019] 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 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.

[0020] The following is in conjunction with the appendix Figures 1-3 The present invention will be further described below.

[0021] To address the problems existing in the background technology, this application proposes the following technical solution: a duct with a telescopic structure.

[0022] The specific technical solution includes a duct body 1 and two telescopic pipes 2, each penetrating one side of the duct body 1 and slidably connected to it. One end of each telescopic pipe 2 is fixedly fitted with a mounting plate 3, which is slidably connected inside the duct body 1. Each mounting plate 3 has a through hole 4 on its surface that matches the airflow of the telescopic pipe 2. Movable components 5 are installed on both sides of the duct body 1 to facilitate the movement of the telescopic pipes 2. The movable components 5 include a threaded rod 501 and a connecting rod 503. The sliding connection between the two telescopic pipes 2 and the duct body 1 allows for flexible length adjustment, adapting to different installation spaces and connection requirements. The mounting plates 3 slide inside the duct body 1 and have through holes 4 that match the airflow of the telescopic pipes 2, ensuring the continuity of the airflow during expansion and contraction and reducing airflow resistance. The movable components 5 facilitate the movement of the telescopic pipes 2, making adjustment operations more convenient and stable.

[0023] Reference Figures 1 to 3As shown, one end of the threaded rod 501 is rotatably connected to a mounting plate 3 on one side via a bearing seat. A movable block 502 is threadedly connected to the surface of the threaded rod 501. The movable block 502 is slidably connected inside the duct body 1, and its bottom is fixedly connected to one side of the upper surface of the telescopic pipe 2. A connecting rod 503 is fixedly installed between the mounting plate 3 and one side of the inner wall of the duct body 1. A sliding block 504 is slidably connected to the surface of the connecting rod 503. The sliding block 504 is slidably connected inside the duct body 1, and its upper surface is fixedly connected to the lower surface of the telescopic pipe 2. A handle 505 is provided on one side of the duct body 1, and the handle 505 is fixedly connected to the other end of the threaded rod 501. A sliding rod 506 is slidably connected inside the handle 505. The sliding rod 506 passes through the handle 505. A limit rod 507 is fixedly installed at one end of the sliding rod 506. Multiple limit grooves 508 arranged in a circular array are opened on one side surface of the air duct body 1. A limit block 509 is fixedly installed at one end of the sliding rod 506. The limit block 509 is located on the outside of the handle 505. A return spring 510 is fixedly installed on the surface of the sliding rod 506. When the limit block 509 is pulled to move the sliding rod 506, the return spring 510 is compressed, and the limit rod 507 disengages from the limit groove 508. At this time, the handle 505 can be rotated freely, and the threaded rod 501 fixedly connected to the handle 505 rotates accordingly. Since one end of the threaded rod 501 is rotatably connected to the mounting plate 3 via a bearing seat, and the movable block 502 with its surface threaded connection is slidably connected inside the duct body 1, while the bottom of the movable block 502 is fixedly connected to one side of the upper surface of the telescopic tube 2, when the threaded rod 501 rotates, the movable block 502 will move along the axial direction of the threaded rod 501, thereby driving the telescopic tube 2 to move synchronously. As for the connecting rod 503, the connecting rod 503 is fixed between the mounting plate 3 and the inner wall of the duct body 1, and the sliding block 504 on its surface is fixedly connected to the lower surface of the telescopic tube 2. When the telescopic tube 2 moves, the sliding block 504 will slide along the connecting rod 503, cooperating with the movable block 502 to ensure the smoothness of the telescopic tube 2's movement. After the limiting block 509 is released, under the elastic force of the return spring 510, the sliding rod 506 returns to its original position, and the limiting rod 507 is inserted into the corresponding limiting groove 508, fixing the handle 505, thereby locking the position of the telescopic tube 2.

[0024] Reference Figure 1 and Figure 2 As shown, a connecting plate 6 is fixedly installed at one end of each of the two telescopic pipes 2. Multiple connecting holes 7 arranged in a rectangular array are opened on the surface of the connecting plate 6. Sealing rings 8 are fixedly installed on both sides of the duct body 1. The connecting holes 7 on the connecting plate 6 facilitate the connection of the telescopic pipe 2 with other equipment or pipes, ensuring the continuity of the entire duct system. The sealing rings 8 on both sides of the duct body 1 can enhance the sealing of the duct connection and reduce airflow leakage.

[0025] To ensure that those skilled in the art can fully understand the technical solution, this application provides the following overall overview:

[0026] In use, the operator pulls the limiting block 509 by hand. The limiting block 509 causes the sliding rod 506, which is fixedly connected to it, to slide inside the handle 505. At this time, the return spring 510 on the surface of the sliding rod 506 is compressed. At the same time, the limiting rod 507 at one end of the sliding rod 506 disengages from the limiting groove 508 on one side surface of the air duct body 1. After the limiting rod 507 disengages from the limiting groove 508, the operator can freely rotate the handle 505, and the threaded rod 501 fixedly connected to the handle 505 will rotate accordingly. Since one end of the threaded rod 501 is rotatably connected to the mounting plate 3 via a bearing seat, and the movable block 502, which is threadedly connected to its surface, is slidably connected to the inside of the duct body 1, and the bottom of the movable block 502 is fixedly connected to one side of the upper surface of the telescopic pipe 2, when the threaded rod 501 rotates, the movable block 502 will move along the axial direction of the threaded rod 501, thereby driving the telescopic pipe 2 to move synchronously. During the movement of the telescopic pipe 2, since the connecting rod 503 is fixedly installed between the mounting plate 3 and one side of the inner wall of the duct body 1, and the sliding block 504, which is slidably connected to its surface, is fixedly connected to the lower surface of the telescopic pipe 2, and the sliding block 504 is slidably connected to the inside of the duct body 1, the sliding block 504 will move along the axial direction of the threaded rod 501. The sliding rod 503 slides and cooperates with the moving block 502 to ensure the smoothness of the movement of the telescopic tube 2. When the telescopic tube 2 moves to the desired position, the operator releases the limiting block 509. Under the elastic force of the return spring 510, the sliding rod 506 returns to its original position, driving the limiting rod 507 to insert into the corresponding limiting groove 508 and fixing the handle 505, thereby locking the position of the telescopic tube 2. Through the connecting hole 7 on the surface of the connecting plate 6 fixedly installed at one end of the telescopic tube 2, the telescopic tube 2 can be connected to other equipment or pipelines to ensure the continuity of the entire air duct system. The sealing rings 8 fixedly installed on both sides of the air duct body 1 can enhance the sealing of the air duct connection and reduce airflow leakage.

[0027] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A duct having a telescopic structure, characterized by, The system includes a duct body (1) and a telescopic tube (2). There are two telescopic tubes (2), each of which passes through one side of the duct body (1) and is slidably connected to one side of the duct body (1). One end of each of the two telescopic tubes (2) is fixedly installed with an mounting plate (3). Both mounting plates (3) are slidably connected to the inside of the duct body (1). The surfaces of the two mounting plates (3) are provided with through holes (4) that fit the air duct of the telescopic tube (2). The inside of the duct body (1) is equipped with moving components (5) to facilitate the movement of the telescopic tube (2). The moving components (5) include a threaded rod (501) and a connecting rod (503).

2. The telescopic duct according to claim 1, wherein One end of the threaded rod (501) is rotatably connected to the mounting plate (3) on one side via a bearing seat. A movable block (502) is threadedly connected to the surface of the threaded rod (501). The movable block (502) is slidably connected inside the air duct body (1), and the bottom of the movable block (502) is fixedly connected to one side of the upper surface of the telescopic pipe (2).

3. The telescopic air hose according to claim 2, wherein The connecting rod (503) is fixedly installed between the mounting plate (3) and one side of the inner wall of the duct body (1). A sliding block (504) is slidably connected to the surface of the connecting rod (503). The sliding block (504) is slidably connected inside the duct body (1). The upper surface of the sliding block (504) is fixedly connected to the lower surface of the telescopic pipe (2).

4. The telescopic air pipe according to claim 2, wherein, A handle (505) is provided on one side of the duct body (1). The handle (505) is fixedly connected to the other end of the threaded rod (501). A sliding rod (506) is slidably connected inside the handle (505). The sliding rod (506) passes through the handle (505). A limiting rod (507) is fixedly installed at one end of the sliding rod (506). A plurality of limiting grooves (508) arranged in a circumferential array are opened on one side surface of the duct body (1). A limiting block (509) is fixedly installed at one end of the sliding rod (506). The limiting block (509) is located on the outside of the handle (505).

5. The telescopic air hose according to claim 4, wherein A return spring (510) is fixedly installed on the surface of the sliding rod (506).

6. The telescopic air pipe according to claim 1, wherein A connecting plate (6) is fixedly installed at one end of each of the two telescopic tubes (2), and the surface of the connecting plate (6) is provided with a plurality of connecting holes (7) arranged in a rectangular array.

7. The telescopic air hose according to claim 1, wherein Both sides of the duct body (1) are fixedly installed with sealing rings (8).

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