A wind pipe reducing transition structure for reducing wind resistance

Abstract

The utility model discloses a kind of wind pipe reducing transition structure of wind resistance, belong to wind pipe technical field.This kind of wind pipe reducing transition structure of wind resistance, including a pair of wind pipe body and the connecting shell butting between them, the adjacent one end of a pair of wind pipe body is communicated with butting ring, transmission assembly is equipped between two butting rings, the top of transmission assembly is located in the side of connecting shell, the inside of transmission assembly is equipped with reducing mechanism, the reducing mechanism includes round hole cover, round hole plate and the triangular plate of circumferential distribution, the inside of one of butting ring is fixedly installed in the round hole plate, the inside one side of transmission assembly is provided with round hole cover, and the triangular plate is arranged between round hole cover and round hole plate, the utility model cooperates by butting ring, transmission assembly and reducing mechanism, so that the transition structure has the function of adjusting aperture.

Description

Technical Field

[0001] This utility model relates to the field of duct technology, specifically to a duct diameter transition structure that reduces air resistance. Background Technology

[0002] These are ducts used for air circulation, made of metal, non-metal sheet metal, or other materials. Metal ducts are made of various metal materials, commonly including galvanized iron and stainless steel. With the continuous development of the storage tank industry, more and more industries and enterprises are using storage tanks, and more and more companies are entering the storage tank industry. Composite ducts are made of various inorganic or organic materials, and are classified into many types according to their composition, but most are lightweight, porous, and have high thermal resistance.

[0003] Currently, when existing ducts are connected using transitional structures, the structure is relatively simple and can only serve a basic connection function. It is impossible to adjust the orifice diameter as needed to change the ventilation flow. Utility Model Content

[0004] To address the problem that existing transition structures cannot adjust the aperture, this invention provides a duct diameter-changing transition structure that reduces wind resistance.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows: A duct diameter-changing transition structure for reducing wind resistance includes a pair of duct bodies and a connecting shell connecting them. Adjacent ends of the pair of duct bodies are connected to a connecting ring. A transmission assembly is provided between the two connecting rings. The top of the transmission assembly is located on one side of the connecting shell. A diameter-changing mechanism is provided inside the transmission assembly. The diameter-changing mechanism includes a circular hole sleeve, a circular hole plate, and triangular plates distributed in a circle. The circular hole plate is fixedly installed inside one of the connecting rings. The circular hole sleeve is disposed on one side inside the transmission assembly, and the triangular plates are disposed between the circular hole sleeve and the circular hole plate.

[0006] Furthermore, a shaft is installed on one side of the edge of the triangular plate, and strip-shaped shaft holes for limiting the shaft are distributed circumferentially on the outer wall of the circular hole sleeve.

[0007] The beneficial effect of adopting the above-mentioned further solution is that the shaft on the edge of the triangle plate cooperates with the strip-shaped shaft hole on the outer wall of the round hole sleeve to provide limit and guide for the rotation of the triangle plate: when the round hole sleeve rotates, the shaft slides along the strip-shaped shaft hole, driving the triangle plate to rotate around the protrusion, ensuring that all triangle plates open and close synchronously. In addition, the length and angle design of the strip-shaped shaft hole can precisely control the opening and closing range of the triangle plate, so that the diameter of the hole after the change of diameter can be stably maintained at the target size, ensuring the stability of airflow transmission.

[0008] Furthermore, the triangular plate has a protrusion on the side opposite to the shaft, and the outer wall of the circular hole plate has a limiting groove that engages with the protrusion.

[0009] The beneficial effect of adopting the above-mentioned further solution is that the protrusion of the triangular plate engages with the limiting groove of the circular hole plate, fixing one end of the triangular plate to the circular hole plate, so that the triangular plate can only rotate around the protrusion, avoiding the overall displacement of the triangular plate during the diameter change process, and ensuring the stable operation of the diameter change mechanism. The precise engagement of the protrusion and the limiting groove also ensures that all triangular plates are initially in the same position, resulting in stronger synchronization during opening and closing and a more regular hole structure.

[0010] Furthermore, the triangular plates are sequentially fitted together to form a hole-like structure, and the hole-like structure is on the same axis as the circular hole sleeve and the circular hole plate.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the triangular plates fit together and form a hole-like structure coaxial with the round hole sleeve and the round hole plate, ensuring that the airflow can be transmitted in a straight line along the axis of the duct, avoiding airflow collision with the inner wall due to channel offset and generating wind resistance.

[0012] Furthermore, the transmission assembly includes a worm gear and a worm. The worm gear is fitted onto the outer wall of the circular hole sleeve, and the worm is rotatably connected inside the connecting shell. The worm gear and the worm mesh with each other, and one end of the worm extends to the outside of the connecting shell and is connected to a knob.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the worm gear of the transmission component is fitted on the outer wall of the round hole sleeve, the worm and the worm wheel mesh, and rotating the knob on the outside of the connecting shell can drive the worm to rotate, thereby driving the worm wheel and the round hole sleeve to rotate synchronously.

[0014] Furthermore, the connecting shell includes a housing, and a through hole is provided on one side of the housing for the worm gear to pass through.

[0015] The beneficial effects of adopting the above-mentioned further solution are that the shell of the connecting shell provides a closed protective space for the worm and worm wheel, preventing dust and moisture from entering and causing corrosion of the transmission components, thus ensuring transmission efficiency; the through hole on one side allows the worm to pass through, ensuring that one end of the worm can be connected to an external knob.

[0016] Furthermore, the pair of duct bodies includes a first duct body and a second duct body, with one adjacent end of the first duct body and the second duct body respectively connected to both sides of the connecting shell.

[0017] The advantage of adopting the above-mentioned further solution is that it clarifies the direction of airflow in and out, making it easier to connect with ducts at different locations in the ventilation system.

[0018] Furthermore, the inner walls of both duct bodies are provided with spiral textures.

[0019] The beneficial effect of adopting the above-mentioned further scheme is that the spiral texture can guide the airflow to move forward spirally along the pipe body, which can reduce the friction area between the airflow and the pipe wall, and at the same time avoid the airflow from generating turbulence in the pipe, which is conducive to reducing wind resistance.

[0020] Compared with the prior art, the beneficial effects of this utility model are: This type of duct diameter-changing transition structure, which reduces wind resistance, utilizes the cooperation of a connecting ring, transmission components, and a diameter-changing mechanism to enable the transition structure to adjust the orifice diameter. A pair of duct bodies provide a basic airflow channel, adapting to the airflow transmission needs at different locations within the ventilation system. The connecting shell between the two provides installation and protection space for the transmission components and diameter-changing mechanism, preventing external impurities from interfering with the operation of internal components, while ensuring the overall sealing of the diameter-changing transition structure to prevent airflow leakage. The connecting ring connects the ventilation duct body to the internal components, allowing airflow to smoothly enter the diameter-changing mechanism area. Furthermore, the circular orifice sleeve, circular orifice plate, and circumferentially distributed triangular plates of the diameter-changing mechanism cooperate to change the airflow channel orifice diameter by adjusting the opening and closing angle of the triangular plates. The circumferentially distributed triangular plates, when opened and closed, form a smooth inner wall of the perforated structure, guiding airflow along the axis and reducing wind resistance caused by airflow impact. Attached Figure Description

[0021] Figure 1 A three-dimensional schematic diagram of a duct diameter transition structure for reducing wind resistance provided by this utility model; Figure 2 A schematic diagram of a duct body with a variable diameter transition structure for reducing wind resistance, provided by this utility model; Figure 3 A schematic diagram of a transmission component for a duct diameter-changing transition structure that reduces wind resistance, provided by this utility model; Figure 4 A schematic diagram of the diameter-changing mechanism of a duct diameter-changing transition structure for reducing wind resistance provided by this utility model; Figure 5 A cross-sectional view of the duct body of a duct with a variable diameter transition structure for reducing wind resistance, provided by this utility model.

[0022] In the diagram: 1. Duct body; 101. First duct body; 102. Second duct body; 2. Connecting shell; 201. Shell; 202. Through hole; 3. Transmission assembly; 301. Worm gear; 302. Worm; 303. Knob; 4. Connecting ring; 5. Spiral texture; 6. Variable diameter mechanism; 601. Round hole sleeve; 602. Round hole plate; 603. Triangular plate; 604. Shaft; 605. Protrusion; 606. Strip shaft hole; 607. Limiting groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5 This utility model provides a technical solution: a duct diameter-changing transition structure to reduce wind resistance, including a pair of duct bodies 1 and a connecting shell 2 between them. The pair of duct bodies 1 provide a basic transport channel for airflow, adapting to the airflow transmission needs at different locations in the ventilation system; the connecting shell 2 between them provides installation and protection space for the transmission component 3 and the diameter-changing mechanism 6, preventing external impurities from interfering with the operation of internal components, while ensuring the overall sealing of the diameter-changing transition structure to prevent airflow leakage. Adjacent ends of the pair of duct bodies 1 are connected to a connecting ring 4, and a transmission component 3 is provided between the two connecting rings 4. The top of the transmission component 3 is located on one side of the connecting shell 2, and the diameter-changing mechanism 6 is provided inside the transmission component 3. The system includes a circular hole sleeve 601, a circular hole plate 602, and a triangular plate 603. The circular hole plate 602 is fixedly installed inside one of the docking rings 4. The circular hole sleeve 601 is located on one side of the inside of the transmission assembly 3, and the triangular plate 603 is located between the circular hole sleeve 601 and the circular hole plate 602. The docking ring 4 connects the ventilation pipe body 1 and the internal components, allowing airflow to smoothly enter the area of ​​the diameter-changing mechanism 6. The circular hole sleeve 601, the circular hole plate 602, and the circumferentially distributed triangular plate 603 of the diameter-changing mechanism 6 cooperate to change the diameter of the airflow channel by adjusting the opening and closing angle of the triangular plate 603. The triangular plate 603 is circumferentially distributed, and the inner wall of the hole structure formed after opening and closing is smooth, which can guide the airflow along the axis and reduce the wind resistance generated by the airflow impact.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] As an embodiment of this utility model, further, a shaft 604 is installed on one side of the edge of the triangular plate 603, and strip-shaped shaft holes 606 for limiting the shaft 604 are distributed circumferentially on the outer wall of the circular hole sleeve 601. The shaft 604 on the edge of the triangular plate 603 cooperates with the strip-shaped shaft holes 606 on the outer wall of the circular hole sleeve 601 to provide limiting and guiding for the rotation of the triangular plate 603. When the circular hole sleeve 601 rotates, the shaft 604 slides along the strip-shaped shaft holes 606, driving the triangular plate 603 to rotate around the protrusion 605, ensuring that all triangular plates 603 open and close synchronously. Furthermore, the length and angle of the strip-shaped shaft holes 606 are set... The design allows for precise control of the opening and closing range of the triangular plate 603, ensuring that the diameter of the orifice remains stable at the target size after the diameter change, thus guaranteeing the stability of airflow transmission. The triangular plate 603 has a protrusion 605 on the side opposite to the shaft 604, and the outer wall of the circular hole plate 602 has a limiting groove 607 that engages with the protrusion 605. The protrusion 605 of the triangular plate 603 engages with the limiting groove 607 of the circular hole plate 602, fixing one end of the triangular plate 603 onto the circular hole plate 602, so that the triangular plate 603 can only rotate around the protrusion 605, preventing the triangular plate 603 from shifting as a whole during the diameter change process, and ensuring the stable operation of the diameter change mechanism 6. The precise engagement of the protrusion 605 and the limiting groove 607 ensures that all the triangular plates 603 are initially in the same position, resulting in stronger synchronization during opening and closing and a more regular hole structure. The triangular plates 603 are sequentially fitted together to form a hole structure, which is on the same axis as the round hole sleeve 601 and the round hole plate 602. The triangular plates 603 are fitted together to form a hole structure coaxial with the round hole sleeve 601 and the round hole plate 602, ensuring that the airflow can be transmitted in a straight line along the axis of the duct, avoiding airflow collision with the inner wall and generating wind resistance due to channel offset.

[0027] In one embodiment of this utility model, the transmission assembly 3 further includes a worm gear 301 and a worm 302. The worm gear 301 is fitted onto the outer wall of the circular hole sleeve 601, and the worm 302 is rotatably connected inside the connecting shell 2. The worm gear 301 and the worm 302 mesh with each other. One end of the worm 302 extends to the outside of the connecting shell 2 and is connected to a knob 303. The worm gear 301 of the transmission assembly 3 is fitted onto the outer wall of the circular hole sleeve 601, and the worm 302 meshes with the worm gear 301. The knob 302 on the outside of the connecting shell 2 is rotated. 3 can drive the worm 302 to rotate, thereby driving the worm wheel 301 and the round hole sleeve 601 to rotate synchronously. The connecting shell 2 includes a shell 201. One side of the shell 201 has a through hole 202 for the worm 302 to pass through. The shell 201 of the connecting shell 2 provides a closed protective space for the worm 302 and the worm wheel 301 to prevent dust and moisture from entering and causing corrosion of the transmission components, thus ensuring transmission efficiency. The through hole 202 on one side allows the worm 302 to pass through, ensuring that one end of the worm 302 can be connected to the external knob 303.

[0028] As an embodiment of this utility model, further, a pair of duct bodies 1 includes a first duct body 101 and a second duct body 102. The adjacent ends of the first duct body 101 and the second duct body 102 are respectively connected to the two sides of the connecting shell 2, which clarifies the direction of airflow in and out, and facilitates docking with ducts at different positions in the ventilation system. The inner walls of the pair of duct bodies 1 are provided with spiral textures 5. The spiral textures 5 can guide the airflow to spiral forward along the duct body, which can reduce the friction area between the airflow and the duct wall, and at the same time avoid the airflow from generating turbulence in the duct, which is conducive to reducing wind resistance.

[0029] Specifically, the working principle of this duct diameter-changing transition structure that reduces wind resistance is as follows: In use, the ventilation system pipeline is first connected through a pair of duct bodies 1, the first pipe body 101 and the second pipe body 102. The connecting shell 2 between the two provides protection for the internal transmission components 3 and the diameter-changing mechanism 6. The through hole 202 on one side of the shell 201 allows the worm gear 302 to pass through, ensuring that the transmission components are not interfered with by external impurities and that the airflow does not leak. The airflow enters from one of the duct bodies and is smoothly guided into the area of ​​the diameter-changing mechanism 6 through the docking ring 4. When it is necessary to adjust the diameter of the airflow channel, the knob 303 on the outside of the connecting shell 2 is rotated to drive the worm gear 302 to rotate. The worm wheel 301 meshing with the worm gear drives the round hole sleeve to rotate synchronously. When the round hole sleeve rotates, the strip-shaped shaft hole 606 on its outer wall pushes the shaft 604 on the edge of the triangular plate 603 to slide, so that the triangular plate rotates around the protrusion 605, realizing the synchronous opening and closing of all triangular plates. The triangular plates are distributed in a circle and fit together. When opened and closed, they form a smooth hole structure coaxial with the circular hole sleeve 601 and the circular hole plate 602, which guides the airflow along the axis and reduces the impact resistance. At the same time, the spiral texture 5 on the inner wall of the duct body guides the airflow to spiral forward, avoids turbulence in the duct, and further reduces the resistance.

Claims

1. A duct diameter transition structure for reducing wind resistance, comprising a pair of duct bodies (1) and a connecting shell (2) connecting the two, characterized in that, A pair of duct bodies (1) are connected at one end to a docking ring (4), and a transmission assembly (3) is provided between the two docking rings (4). The top of the transmission assembly (3) is located on one side of the connecting shell (2). The transmission assembly (3) is provided with a diameter changing mechanism (6). The diameter changing mechanism (6) includes a round hole sleeve (601), a round hole plate (602), and a triangular plate (603) distributed in a circle. The round hole plate (602) is fixedly installed inside one of the docking rings (4). The round hole sleeve (601) is located on one side inside the transmission assembly (3), and the triangular plate (603) is located between the round hole sleeve (601) and the round hole plate (602).

2. The duct diameter transition structure for reducing wind resistance according to claim 1, characterized in that, A shaft (604) is installed on one side of the edge of the triangular plate (603), and the outer wall of the circular hole sleeve (601) is provided with strip-shaped shaft holes (606) for limiting the shaft (604).

3. The duct diameter transition structure for reducing wind resistance according to claim 2, characterized in that, The triangular plate (603) has a protrusion (605) on the side opposite to the shaft (604), and the outer wall of the circular hole plate (602) has a limiting groove (607) that engages with the protrusion (605).

4. The duct diameter transition structure for reducing wind resistance according to claim 3, characterized in that, The triangular plates (603) are sequentially attached to each other to form a hole-like structure, and the hole-like structure is on the same axis as the round hole sleeve (601) and the round hole plate (602).

5. The duct diameter transition structure for reducing wind resistance according to claim 1, characterized in that, The transmission assembly (3) includes a worm wheel (301) and a worm (302). The worm wheel (301) is fitted on the outer wall of the round hole sleeve (601). The worm (302) is rotatably connected inside the connecting shell (2). The worm wheel (301) and the worm (302) mesh with each other. One end of the worm (302) extends to the outside of the connecting shell (2) and is connected to a knob (303).

6. The duct diameter transition structure for reducing wind resistance according to claim 5, characterized in that, The connecting shell (2) includes a shell (201), and a through hole (202) is provided on one side of the shell (201) for the worm gear (302) to pass through.

7. The duct diameter transition structure for reducing wind resistance according to claim 1, characterized in that, The pair of duct bodies (1) includes a first duct body (101) and a second duct body (102), and the adjacent ends of the first duct body (101) and the second duct body (102) are respectively connected to the two sides of the connecting shell (2).

8. The duct diameter transition structure for reducing wind resistance according to claim 1, characterized in that, The inner walls of both duct bodies (1) are provided with spiral textures (5).

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