Stainless steel angle iron flange air pipe
By designing a detachable stainless steel angle iron flange duct, and utilizing flange connections and a crank handle to control the position of the adjustment plate, the problem of airflow regulation was solved, enabling convenient transportation and flexible airflow adjustment, and improving transportation efficiency and sealing performance.
Patent Information
- Application Number
- CN202520267625.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Existing stainless steel ducts lack an effective control structure for airflow control, making it difficult to adjust the airflow.
A detachable stainless steel angle iron flange duct was designed. By connecting the first flange and the second flange, and combining the transmission component and the adjustment component, the position of the adjustment plate is controlled by a crank to adjust the air volume inside the duct.
It enables convenient transportation and flexible airflow adjustment of ducts, reduces transportation costs and improves transportation efficiency, while enhancing the sealing and flexibility of duct connections.
Smart Images

Figure CN223708904U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of air pipe equipment especially relates to stainless steel angle iron flange air pipe. BACKGROUND
[0002] Air ducts (or ventilation ducts) are key components for air delivery and are widely used in heating, ventilation, and air conditioning (HVAC) systems of buildings. Their main function is to deliver treated air (such as cool air, hot air, humidified or dehumidified air) to various rooms or spaces to ensure a comfortable indoor environment.
[0003] After searching, the corrosion-resistant stainless steel air pipe with publication number CN220523484U includes a stainless steel air pipe, an inner rubber frame is arranged in the inner layer of the stainless steel air pipe, and an outer rubber frame is arranged in the outer layer of the stainless steel air pipe, characterized in that a plurality of protrusions are arranged on the inner side of the outer rubber frame, an internal accommodation cavity is arranged in the protrusions, a plurality of convex parts are arranged in the stainless steel air pipe, the convex parts are recessed into the interior of the stainless steel air pipe, an inner cavity is arranged in the convex parts, the protrusions are clamped into the inner cavity, a plurality of grooves are arranged on the outer surface of the inner cavity, the convex parts are clamped into the grooves, and the device utilizes the outer support, the outer rubber frame, the stainless steel air pipe, the inner rubber frame, and the inner clamping plate to form a multi-layer nested structure, greatly improves the corrosion resistance of the device, and sets a protective layer on the joint and the inner and outer surfaces of the stainless steel air pipe, effectively avoiding corrosion.
[0004] Based on the above patent, the air volume is transmitted inside the air pipe, but there are still some deficiencies in use. Since there is a lack of control structure inside, it is not convenient to control the size of the transmitted air volume. To solve this technical problem, the stainless steel angle iron flange air pipe is proposed. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving the shortcomings in the prior art and provides a stainless steel angle iron flange air pipe. The air pipe one and the air pipe two are split for transportation, each section has relatively small length and weight, which is convenient for carrying and loading and unloading, reduces transportation cost, improves transportation efficiency, and controls the position of the adjusting plate through the crank handle to adjust the air volume inside the air pipe two.
[0006] In order to achieve the above object, the utility model provides the following technical scheme: the stainless steel angle iron flange air pipe, including air pipe no. 1 and air pipe no. 2, the first flange is fixedly connected with the right end of air pipe no. 1 outer wall, the second flange is fixedly connected with the left end of air pipe no. 2 outer wall, the first flange is connected through bolt with the second flange, air pipe no. 2 bottom end inner wall is rotatably connected with the shaft, the shaft outer wall is rotatably connected in the air pipe no. 2 bottom end inner wall, the shaft is connected with threaded rod through transmission assembly, the threaded rod left and right two ends outer wall is rotatably connected in the air pipe no. 2 inner wall bottom end left and right sides respectively, the threaded rod is connected with the adjusting plate through adjusting assembly, for adjusting the air volume in air pipe no. 2, the adjusting plate left end is rotatably connected in the air pipe no. 2 inner wall bottom end.
[0007] Further, the transmission assembly includes a first bevel gear fixedly connected to the rear end of the shaft, a second bevel gear meshingly connected to the outer diameter of the first bevel gear, and the threaded rod is fixedly connected to the left end of the second bevel gear.
[0008] Further, the adjusting assembly includes a sliding block threadedly connected to the outer wall of the threaded rod, the sliding block is slidably connected to the bottom end of the inner wall of the air pipe no. 2, and the top end of the sliding block is rotatably connected with a support rod, and the top end of the support rod is rotatably connected to the bottom end of the adjusting plate.
[0009] Further, the right end of the first flange is fixedly connected with positioning columns on four sides, the left end of the second flange is provided with positioning holes on four sides, and the positioning columns and the positioning holes are matched in shape.
[0010] Further, the right end of the air pipe no. 1 is provided with a sealing groove, the left end of the air pipe no. 2 is fixedly connected with a sealing ring, and the sealing groove and the sealing ring are matched in shape.
[0011] Further, the outer wall of the shaft is threadedly connected with a threaded sleeve at the front end, and the rear end of the threaded sleeve and the front end of the air pipe no. 2 are fixedly connected with annular protrusions.
[0012] Further, the front end of the shaft is fixedly connected with a crank handle for driving the shaft to rotate.
[0013] The utility model has the following beneficial effects:
[0014] 1、 in the utility model, the first flange and the second flange are connected to connect two air pipes, and air pipe no. 1 and air pipe no. 2 are split for transportation, the length and weight of each section are relatively small, which is convenient for carrying and unloading, not only reduces transportation cost, but also improves transportation efficiency.
[0015] 2、 in the utility model, the crank handle drives the threaded rod to rotate, the threaded rod controls the adjusting plate through the support rod, so that the air volume in air pipe no. 2 can be controlled, and the flexibility of the device is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 A perspective view of the stainless steel angle iron flange air pipe according to the present application is provided;
[0017] Figure 2 A structure schematic view of the air pipe one of the stainless steel angle iron flange air pipe according to the present application is provided;
[0018] Figure 3 A structure schematic view of the air pipe two of the stainless steel angle iron flange air pipe according to the present application is provided;
[0019] Figure 4 A schematic view of the adjusting plate of the stainless steel angle iron flange air pipe according to the present application is provided;
[0020] Figure 5 A schematic view of the supporting rod of the stainless steel angle iron flange air pipe according to the present application is provided;
[0021] Figure 6 A Figure 5 An enlarged view of A in FIG. 1.
[0022] Legend:
[0023] 1, air pipe one; 2, air pipe two; 3, first flange; 4, second flange; 5, positioning column; 6, positioning hole; 7, sealing groove; 8, sealing ring; 9, crank; 10, rotating shaft; 11, first bevel gear; 12, second bevel gear; 13, threaded rod; 14, sliding block; 15, supporting rod; 16, adjusting plate; 17, threaded sleeve. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0025] With reference to Figures 1-3 , the present application provides an embodiment: a stainless steel angle iron flange air pipe, comprising an air pipe one 1 and an air pipe two 2, the air pipe one 1 is fixedly connected with a first flange 3 at the right end of the outer wall, the air pipe two 2 is fixedly connected with a second flange 4 at the left end of the outer wall, the first flange 3 and the second flange 4 are connected through bolts, the first flange 3 is fixedly connected with a positioning column 5 at the right end of the four sides, the second flange 4 is provided with a positioning hole 6 at the left end of the four sides, the positioning column 5 and the positioning hole 6 are matched in shape, the air pipe one 1 is provided with a sealing groove 7 at the right end, the air pipe two 2 is fixedly connected with a sealing ring 8 at the left end, and the sealing groove 7 and the sealing ring 8 are matched in shape.
[0026] Specifically, the first flange 3 and the second flange 4 of the air pipe one 1 and the air pipe two 2 are made of stainless steel material, when the air pipe one 1 and the air pipe two 2 are fixedly connected together, the positioning column 5 on the first flange 3 is inserted into the positioning hole 6 on the second flange 4, the first flange 3 and the second flange 4 are preliminarily fixed, then the bolt is screwed from the left end of the first flange 3 into the inside of the first flange 3 and the second flange 4, and the first flange 3 and the second flange 4 are tightly fixed together, so that the air pipe one 1 and the air pipe two 2 are connected together, and the sealing ring 8 and the sealing groove 7 inside the air pipe one 1 and the air pipe two 2 can guarantee the sealing performance of the connection, so as to avoid the overflow of air from the connection.
[0027] With reference to Figures 4-6 , the inner wall of the bottom end of the air pipe two 2 is rotationally connected with a rotating shaft 10, the outer wall of the rotating shaft 10 is rotationally connected with the inner wall of the bottom end of the air pipe two 2, the rear end of the rotating shaft 10 is fixedly connected with a first bevel gear 11, the outer diameter of the first bevel gear 11 is meshingly connected with a second bevel gear 12, the right end of a threaded rod 13 is fixedly connected with the left end of the second bevel gear 12, the outer walls of the left and right ends of the threaded rod 13 are respectively rotationally connected with the inner wall of the bottom end of the air pipe two 2, the outer wall of the threaded rod 13 is threadedly connected with a sliding block 14, the bottom end of the sliding block 14 is slidingly connected with the inner wall of the bottom end of the air pipe two 2, the top end of the sliding block 14 is rotationally connected with a supporting rod 15, the top end of the supporting rod 15 is rotationally connected with the bottom end of an adjusting plate 16, so as to adjust the air volume inside the air pipe two 2, the left end of the adjusting plate 16 is rotationally connected with the inner wall of the bottom end of the air pipe two 2, the outer wall of the front end of the rotating shaft 10 is threadedly connected with a threaded sleeve 17, the rear end of the threaded sleeve 17 and the front end of the air pipe two 2 are fixedly connected with annular protrusions, and the front end of the rotating shaft 10 is fixedly connected with a crank 9, so as to drive the rotating shaft 10 to rotate.
[0028] Specifically, when the position of the adjusting plate 16 is controlled by rotating the rotating shaft 10 using the crank 9, if the air volume inside the air pipe two 2 is large, the adjusting plate 16 may be directly flipped down, at this time, the threaded sleeve 17 at the front end of the rotating shaft 10 can be rotated, so that the threaded sleeve 17 moves to the front end of the air pipe two 2 and is tightly attached, the annular protrusions on the threaded sleeve 17 and the annular protrusions on the air pipe two 2 are pressed against each other, so that the rotating shaft 10 is fixed, and the rotating shaft 10 cannot rotate until the threaded sleeve 17 is removed, so that the adjusting plate 16 cannot be pressed down and flipped by external force.
[0029] Working principle: when using, the plurality of positioning column 5 on the first flange 3 is inserted into the positioning hole 6 on the second flange 4, prevent the first flange 3 and the second flange 4 from being offset during installation, the screw hole is difficult to align and inconvenient to install, then the first flange 3 and the second flange 4 are fixed together through the bolt, when ventilating, the user may need to change the air volume in the air pipe two 2, at this time, the handle 9 can be rotated, the handle 9 drives the rotating shaft 10 to rotate, the rotating shaft 10 drives the first bevel gear 11 to rotate, the first bevel gear 11 drives the second bevel gear 12 to rotate, so that the threaded rod 13 rotates, the threaded rod 13 drives the sliding block 14 to move, the sliding block 14 drives the support rod 15 bottom end one side to move, so that the top end of the support rod 15 moves up and down, the right end of the adjusting plate 16 is controlled to flip, and the left end of the adjusting plate 16 rotates in the air pipe two 2, so that the space in the air pipe two 2 changes, so that the air volume changes.
[0030] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.
Claims
1. Stainless steel angle iron flange air duct, characterized in that, The system includes a duct 1 (1) and a duct 2 (2). The right end of the outer wall of the duct 1 (1) is fixedly connected to a first flange (3), and the left end of the outer wall of the duct 2 (2) is fixedly connected to a second flange (4). The first flange (3) and the second flange (4) are connected by bolts. The inner wall of the bottom end of the duct 2 (2) is rotatably connected to a rotating shaft (10). The outer wall of the rotating shaft (10) is rotatably connected to the inner wall of the bottom end of the duct 2 (2). The rotating shaft (10) is connected to a threaded rod (13) through a transmission assembly. The outer walls of the left and right ends of the threaded rod (13) are rotatably connected to the left and right sides of the bottom end of the inner wall of the duct 2 (2). The threaded rod (13) is connected to an adjusting plate (16) through an adjusting assembly to adjust the air volume inside the duct 2 (2). The left end of the adjusting plate (16) is rotatably connected to the bottom end of the inner wall of the duct 2 (2).
2. The stainless steel angle iron flange duct according to claim 1, characterized in that: The transmission assembly includes a first bevel gear (11) fixedly connected to the rear end of the rotating shaft (10), a second bevel gear (12) meshing with the outer diameter of the first bevel gear (11), and the right end of the threaded rod (13) fixedly connected to the left end of the second bevel gear (12).
3. The stainless steel angle iron flange duct according to claim 1, characterized in that: The adjustment assembly includes a slider (14) threaded to the outer wall of the threaded rod (13), the bottom end of the slider (14) is slidably connected to the bottom end of the inner wall of the second air duct (2), and the top end of the slider (14) is rotatably connected to a support rod (15), the top end of the support rod (15) is rotatably connected to the bottom end of the adjustment plate (16).
4. The stainless steel angle iron flange duct according to claim 1, characterized in that: The first flange (3) has four fixed connections to the right side of the first flange (3), and the second flange (4) has four fixed connections to the left side of the second flange (4). The positioning pins (5) and the positioning holes (6) are in the same shape.
5. The stainless steel angle iron flange duct according to claim 1, characterized in that: The right end of the first air duct (1) is provided with a sealing groove (7), and the left end of the second air duct (2) is fixedly connected with a sealing ring (8). The sealing groove (7) and the sealing ring (8) are in the same shape.
6. The stainless steel angle iron flange duct according to claim 1, characterized in that: The front end of the outer wall of the rotating shaft (10) is threadedly connected to a threaded sleeve (17), and the rear end of the threaded sleeve (17) and the front end of the second air duct (2) are both fixedly connected to annular protrusions.
7. The stainless steel angle iron flange duct according to claim 1, characterized in that: A crank (9) is fixedly connected to the front end of the rotating shaft (10) for driving the rotating shaft (10) to rotate.
Citation Information
Patent Citations
Corrosion-resistant stainless steel air pipe
CN220523484U