A fan duct positioning device for ventilation equipment

Abstract

This utility model discloses a fan duct positioning device for ventilation equipment, relating to the field of fan duct positioning technology. It includes a fan duct body, on one side surface of which a first snap-fit ​​mounting plate and a second snap-fit ​​mounting plate are detachably mounted. A connecting block is fixedly mounted on one side surface of the top of the first snap-fit ​​mounting plate, and a pin head is fixedly connected to one side top surface of the connecting block. A first locking connection hole is formed on one side surface of the pin head. By setting the first and second snap-fit ​​mounting plates to directly fit against one side surface of the fan duct body, the pin head is directly inserted into the pin slot, at which point the first and second locking connection holes are directly aligned. A fixing screw is directly inserted into the first and second locking connection holes to achieve a fixed operation, ensuring stable fixation between the pin head and the limiting box, thereby achieving a direct fixed connection between the connecting block and the limiting box.

Description

Technical Field

[0001] This utility model relates to the field of fan duct positioning technology, and in particular to a fan duct positioning device for ventilation equipment. Background Technology

[0002] Duct fans refer to fans whose control parameters include air volume, total pressure, efficiency, noise, and motor power; they are also known as duct ventilation fans. Different types of fans are selected based on the physical and chemical properties of the gas being transported. The fan ducts need to be connected. Due to the different diameters of the ducts, some larger diameter ducts require positioning devices to limit and fix them, facilitating subsequent connections. However, existing positioning devices for duct installation cannot accommodate ducts of different sizes, making it inconvenient to use the same type of positioning device to limit the ducts when installing multiple types of ducts, resulting in low work efficiency. Therefore, we have redesigned a fan duct positioning device for ventilation equipment. Utility Model Content

[0003] The purpose of this utility model is to provide a positioning device for fan ducts in ventilation equipment.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a fan duct positioning device for ventilation equipment, comprising a fan duct body, a first snap-fit ​​mounting plate and a second snap-fit ​​mounting plate detachably mounted on one side surface of the fan duct body, a connecting block fixedly mounted on one top side surface of the first snap-fit ​​mounting plate, a pin head fixedly connected to one top side surface of the connecting block, a first locking connection hole being formed on one side surface of the pin head, a limit box fixedly mounted on the edge of one top side surface of the second snap-fit ​​mounting plate, a pin groove being formed inside the limit box, a second locking connection hole being formed on one top side surface of the limit box, and a pin fixing screw being detachably mounted in the second locking connection hole.

[0005] Preferably, the positions of the connecting block and the limiting box correspond one-to-one, the connection relationship between the pin head and the pin groove is a pin connection, the positions of the first locking connection hole and the second locking connection hole correspond one-to-one, the cross-sectional diameter of the second locking connection hole and the first locking connection hole is the same, the connection relationship between the pin fixing screw and the second locking connection hole is a pin connection, and the connection relationship between the pin fixing screw and the first locking connection hole is a pin connection.

[0006] Preferably, a connecting plate is fixedly installed on the top of the back side of one side of the first buckle mounting plate, a sliding limiting plate is fixedly installed on one side surface of the connecting plate, a sliding limiting groove is opened inside the sliding limiting groove, a sliding adjusting rail is fixedly connected to one side inner wall of the sliding limiting groove, and a sliding adjusting plate is movably installed on one side surface of the sliding adjusting rail.

[0007] Preferably, a threaded extrusion adjusting rod is movably installed inside one side of the sliding adjusting disc, a rotating disc is fixedly connected to the top of the back side of one side of the threaded extrusion adjusting rod, a rotating handle is fixedly connected to one side surface of the rotating disc, a rotating connecting bearing is rotatably connected to the top of the side of the threaded extrusion adjusting rod away from the rotating disc, and a snap-fit ​​extrusion disc is fixedly connected to the top of one side of the rotating connecting bearing.

[0008] Preferably, the sliding adjustment disc is located inside the sliding limiting groove, and there are two sliding adjustment rails, which are symmetrically distributed on the inner wall of the sliding limiting groove. The connection between the sliding adjustment disc and the sliding adjustment rails is a sliding connection.

[0009] Preferably, the threaded compression adjusting rod passes through the interior of the sliding adjusting disc, the threaded compression adjusting rod and the sliding adjusting disc are connected by a threaded connection, the number of rotating handles is several, the several rotating handles are distributed in a circle on one side edge surface of the rotating disc, and the surface connection between the snap-fit ​​compression disc and the fan duct body is a compression contact connection.

[0010] Compared with related technologies, the ventilation equipment fan duct positioning device provided by this utility model has the following advantages:

[0011] 1. This utility model provides a fan duct positioning device for ventilation equipment. It involves setting a first and a second snap-fit ​​mounting plate to directly fit against one side surface of the fan duct body. A pin head is directly inserted into the pin slot, aligning the first and second locking connection holes. A pin fixing screw is then inserted into the first and second locking connection holes to achieve a secure connection, ensuring stable fixation between the pin head and the limiting box. Connecting blocks and limiting boxes are provided at the top and bottom of both the first and second snap-fit ​​mounting plates to ensure connection stability, thus completing the fixing snap-fit ​​operation between the first and second snap-fit ​​mounting plates and the fan duct body.

[0012] 2. This utility model provides a fan duct positioning device for ventilation equipment. A connecting plate is installed at the top back of the first snap-fit ​​mounting plate. Sliding limiting plates are installed on both sides of the connecting plate. The horizontal position of the snap-fit ​​pressing plate is adjusted by the position of the sliding adjusting plate within the sliding limiting groove. The position of the threaded pressing adjusting rod within the sliding adjusting plate is adjusted by rotating the handle. The snap-fit ​​pressing plate directly presses against the surface of the fan duct body to achieve the pressing and limiting operation. Multiple snap-fit ​​pressing plates at different positions can achieve positioning operations at different locations on the fan duct body, ensuring the positioning device's stability for the fan duct body. Multiple rotating handles on the rotating plate facilitate convenient and labor-saving rotation. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This utility model Figure 1 A magnified structural diagram at point A;

[0015] Figure 3 This is a schematic diagram of the initial fixed connection structure of the positioning device and the fan duct of this utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure of the fan duct and positioning device of this utility model.

[0017] The following are the labeling elements in the diagram: 1. Main body of the fan duct; 2. First snap-fit ​​mounting plate; 3. Second snap-fit ​​mounting plate; 4. Connecting block; 5. Pin head; 6. First locking connection hole; 7. Limit box; 8. Pin groove; 9. Second locking connection hole; 10. Pin fixing screw; 11. Connecting plate; 12. Sliding limit plate; 13. Sliding limit groove; 14. Sliding adjusting rail; 15. Sliding adjusting plate; 16. Threaded compression adjusting rod; 17. Rotating plate; 18. Rotating handle; 19. Rotating connecting bearing; 20. Snap-fit ​​compression plate. Detailed Implementation

[0018] Example 1:

[0019] Please see Figure 1-4This utility model provides a technical solution: a fan duct positioning device for ventilation equipment, including a fan duct body 1. A first snap-fit ​​mounting plate 2 and a second snap-fit ​​mounting plate 3 are detachably installed on one side surface of the fan duct body 1. A connecting block 4 is fixedly installed on one side surface of the top of the first snap-fit ​​mounting plate 2. A pin head 5 is fixedly connected to one side surface of the top of the connecting block 4. A first locking connection hole 6 is opened on one side surface of the pin head 5. A limit box 7 is fixedly installed on the edge of one side surface of the top of the second snap-fit ​​mounting plate 3. A pin groove 8 is opened inside the limit box 7. A second locking connection hole 9 is provided on the top surface of one side of the box 7. A pin fixing screw 10 is detachably installed in the second locking connection hole 9. The positions of the connecting block 4 and the limiting box 7 are one-to-one. The connection relationship between the pin head 5 and the pin groove 8 is a pin connection. The positions of the first locking connection hole 6 and the second locking connection hole 9 are one-to-one. The cross-sectional diameters of the second locking connection hole 9 and the first locking connection hole 6 are the same. The connection relationship between the pin fixing screw 10 and the second locking connection hole 9 is a pin connection. The connection relationship between the pin fixing screw 10 and the first locking connection hole 6 is a pin connection.

[0020] In the implementation plan, the first snap-fit ​​mounting plate 2 and the second snap-fit ​​mounting plate 3 are directly attached to one side surface of the fan duct body 1. The pin head 5 is directly inserted into the pin groove 8. At this time, the first locking connection hole 6 and the second locking connection hole 9 are directly aligned. The pin fixing screw 10 is directly inserted into the first locking connection hole 6 and the second locking connection hole 9 to achieve the fixing operation. The pin head 5 and the limit box 7 are stably fixed, thereby realizing the direct fixed connection between the connecting block 4 and the limit box 7. The connecting block 4 and the limit box 7 are set at the top and bottom of the first snap-fit ​​mounting plate 2 and the second snap-fit ​​mounting plate 3 to ensure the connection stability between the first snap-fit ​​mounting plate 2 and the second snap-fit ​​mounting plate 3, and complete the fixing snap-fit ​​operation between the first snap-fit ​​mounting plate 2, the second snap-fit ​​mounting plate 3 and the fan duct body 1.

[0021] Example 2:

[0022] Please see Figure 1-4This utility model provides a technical solution: a fan duct positioning device for ventilation equipment, comprising a connecting plate 11 fixedly installed on the top of one side of a first snap-fit ​​mounting plate 2, a sliding limiting plate 12 fixedly installed on one side surface of the connecting plate 11, a sliding limiting groove 13 opened inside the sliding limiting groove 12, a sliding adjusting rail 14 fixedly connected to one side inner wall of the sliding limiting groove 13, a sliding adjusting plate 15 movably installed on one side surface of the sliding adjusting rail 14, a threaded pressing adjusting rod 16 movably installed inside one side of the sliding adjusting plate 15, a rotating plate 17 fixedly connected to the top of one side of the threaded pressing adjusting rod 16, a rotating handle 18 fixedly connected to one side surface of the rotating plate 17, and a threaded pressing adjusting rod 16 on the side away from the rotating plate 17. A rotating bearing 19 is rotatably connected to the end of the rotating bearing 19. A snap-fit ​​pressing disc 20 is fixedly connected to one side of the top of the rotating bearing 19. A sliding adjusting disc 15 is located inside the sliding limiting groove 13. There are two sliding adjusting rails 14, which are symmetrically distributed on the inner wall of the sliding limiting groove 13. The sliding adjusting disc 15 and the sliding adjusting rails 14 are connected by a sliding connection. A threaded pressing adjusting rod 16 passes through the interior of the sliding adjusting disc 15. The threaded pressing adjusting rod 16 and the sliding adjusting disc 15 are connected by a threaded connection. There are several rotating handles 18, which are distributed in a circle on one side edge surface of the rotating disc 17. The snap-fit ​​pressing disc 20 and the surface of the fan duct body 1 are connected by a pressing contact connection.

[0023] In the implementation scheme, a connecting plate 11 is set on the top of the back of the first snap-fit ​​mounting plate 2, and sliding limit plates 12 are set on both sides of the connecting plate 11. The horizontal position of the snap-fit ​​pressing plate 20 is adjusted by the position of the sliding adjustment plate 15 inside the sliding limit groove 13. Then, by rotating the handle 18 to rotate the rotating plate 17, the position of the threaded pressing adjustment rod 16 inside the sliding adjustment plate 15 is adjusted. The snap-fit ​​pressing plate 20 directly presses and limits the surface of the fan duct body 1. The snap-fit ​​pressing plates 20 in multiple positions can achieve positioning operations at different positions of the fan duct body 1, ensuring the fixed stability of the positioning device for the fan duct body 1. The multiple rotating handles 18 on the rotating plate 17 facilitate the effortless rotation.

[0024] Working principle:

[0025] By setting the first snap-fit ​​mounting plate 2 and the second snap-fit ​​mounting plate 3 to directly fit one side surface of the fan duct body 1, and inserting the pin head 5 directly into the pin groove 8, the first locking connection hole 6 and the second locking connection hole 9 are directly aligned. The pin fixing screw 10 is directly inserted into the first locking connection hole 6 and the second locking connection hole 9 to achieve the fixing operation. This ensures the stable fixing between the pin head 5 and the limit box 7, thereby achieving the direct fixed connection between the connecting block 4 and the limit box 7. The connecting block 4 and the limit box 7 are set at the top and bottom of the first snap-fit ​​mounting plate 2 and the second snap-fit ​​mounting plate 3 to ensure the connection stability between the first snap-fit ​​mounting plate 2 and the second snap-fit ​​mounting plate 3, and complete the fixing snap-fit ​​operation between the first snap-fit ​​mounting plate 2, the second snap-fit ​​mounting plate 3 and the fan duct body 1.

[0026] A connecting plate 11 is set on the top of the back of the first snap-fit ​​mounting plate 2. Sliding limit plates 12 are set on both sides of the connecting plate 11. The horizontal position of the snap-fit ​​pressing plate 20 is adjusted by the position of the sliding adjustment plate 15 inside the sliding limit groove 13. Then, by rotating the handle 18 to rotate the rotating plate 17, the position of the threaded pressing adjustment rod 16 inside the sliding adjustment plate 15 is adjusted. The snap-fit ​​pressing plate 20 directly presses and limits the surface of the fan duct body 1. The snap-fit ​​pressing plates 20 in multiple positions can achieve positioning operations at different positions of the fan duct body 1, ensuring the fixed stability of the positioning device for the fan duct body 1. The rotating handles 18 in multiple positions on the rotating plate 17 facilitate the effortless rotation.

Claims

1. A fan duct positioning device for ventilation equipment, comprising a fan duct body (1), wherein a first snap-fit ​​mounting plate (2) and a second snap-fit ​​mounting plate (3) are detachably mounted on one side surface of the fan duct body (1), characterized in that: A connecting block (4) is fixedly installed on one side of the top of the first snap-fit ​​mounting plate (2). A pin head (5) is fixedly connected to one side of the top surface of the connecting block (4). A first locking connection hole (6) is opened on one side of the pin head (5). A limit box (7) is fixedly installed on the edge of one side of the top surface of the second snap-fit ​​mounting plate (3). A pin groove (8) is opened inside the limit box (7). A second locking connection hole (9) is opened on one side of the top surface of the limit box (7). A pin fixing screw (10) is detachably installed in the second locking connection hole (9).

2. The fan duct positioning device for ventilation equipment according to claim 1, characterized in that, The positions of the connecting block (4) and the limiting box (7) correspond one-to-one. The connection relationship between the pin head (5) and the pin groove (8) is a pin connection. The positions of the first locking connection hole (6) and the second locking connection hole (9) correspond one-to-one. The cross-sectional diameters of the second locking connection hole (9) and the first locking connection hole (6) are the same. The connection relationship between the pin fixing screw (10) and the second locking connection hole (9) is a pin connection. The connection relationship between the pin fixing screw (10) and the first locking connection hole (6) is a pin connection.

3. The fan duct positioning device for ventilation equipment according to claim 1, characterized in that, A connecting plate (11) is fixedly installed on the top of the back side of one side of the first buckle mounting plate (2). A sliding limiting plate (12) is fixedly installed on one side surface of the connecting plate (11). A sliding limiting groove (13) is opened inside the sliding limiting groove (13). A sliding adjusting rail (14) is fixedly connected to one side inner wall of the sliding limiting groove (13). A sliding adjusting plate (15) is movably installed on one side surface of the sliding adjusting rail (14).

4. A fan duct positioning device for ventilation equipment according to claim 3, characterized in that, A threaded compression adjustment rod (16) is movably installed inside one side of the sliding adjustment disc (15). A rotating disc (17) is fixedly connected to the top of the back side of one side of the threaded compression adjustment rod (16). A rotating handle (18) is fixedly connected to one side surface of the rotating disc (17). A rotating connecting bearing (19) is rotatably connected to the top of the side of the threaded compression adjustment rod (16) away from the rotating disc (17). A snap-fit ​​compression disc (20) is fixedly connected to the top of one side of the rotating connecting bearing (19).

5. A fan duct positioning device for ventilation equipment according to claim 4, characterized in that, The sliding adjustment disc (15) is located inside the sliding limiting groove (13). There are two sliding adjustment rails (14), which are symmetrically distributed on the inner wall of the sliding limiting groove (13). The connection between the sliding adjustment disc (15) and the sliding adjustment rails (14) is a sliding connection.

6. A fan duct positioning device for ventilation equipment according to claim 4, characterized in that, The threaded extrusion adjusting rod (16) passes through the interior of the sliding adjusting disc (15). The threaded extrusion adjusting rod (16) and the sliding adjusting disc (15) are connected by a threaded connection. There are several rotating handles (18), which are distributed in a circle on one side edge surface of the rotating disc (17). The surface connection between the snap-fit ​​extrusion disc (20) and the fan duct body (1) is an extrusion contact connection.

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