Device for conveniently connecting low-power fan outside granary with ventilation duct opening

Abstract

The utility model discloses a device for conveniently connecting a low-power fan outside a warehouse with a ventilation duct opening, which belongs to the field of ventilation equipment and comprises a fan body, a connecting main body and a ventilation duct, an extension pipe is welded at the output end of the fan body, and a first clamping component is fixedly connected with the side surface of the upper end of the connecting main body. According to the quick connecting device, the first hook plate, the first clamping groove, the second hook plate and the second clamping groove of the quick connecting assembly are matched, quick connection and disassembly of the connecting main body and the ventilation pipeline can be achieved, compared with a traditional bundling mode, the mounting and disassembly time is greatly shortened, the working efficiency is improved, and an inserting cylinder at the connecting position is matched with an annular groove, so that the use is convenient. Good sealing is formed between the connecting body and the ventilation duct opening, the air leakage phenomenon is effectively prevented, the ventilation effect is guaranteed, energy waste is reduced, meanwhile, the elastic fastening long bolt and the fastening nut are matched with the vertical plate, and the connecting body and the ventilation duct are connected more firmly and not prone to falling off.

Description

Technical Field

[0001] This utility model belongs to the field of ventilation equipment technology, specifically relating to a device for conveniently connecting a small-power outdoor fan to a ventilation duct. Background Technology

[0002] In places such as grain storage facilities and industrial plants, it is often necessary to use small-power fans to ventilate the warehouse through ventilation ducts in order to regulate the temperature and humidity inside the warehouse and ensure air quality.

[0003] Currently, most small-power outdoor fans are connected to ventilation ducts using traditional methods, such as directly using canvas or plastic hoses to connect the ventilation duct and the fan outlet, and then securing them with wire or cable ties. This connection method has many drawbacks: firstly, the connection process is cumbersome, requiring a lot of time and effort for each installation and disassembly; secondly, the connection has poor sealing, which can easily lead to air leakage, affecting ventilation and causing energy waste. Utility Model Content

[0004] To solve the above-mentioned technical problems, the present invention provides a device for conveniently connecting a small-power outdoor fan to a ventilation duct, comprising a fan body, a connecting body, and a ventilation duct.

[0005] An extension tube is welded to the output end of the fan body. A first snap-fit ​​assembly is fixedly connected to the upper side surface of the connecting body. The first snap-fit ​​assembly includes a first mounting plate, a first slot and a first hook plate. The first slot is located on the lower surface of the first mounting plate. A vertical plate is fixedly connected to the upper surface of the first mounting plate. A fastening long bolt is fixedly connected to the side surface of the vertical plate. A fastening nut is threaded onto the side surface of the fastening long bolt.

[0006] A second snap-fit ​​assembly is fixedly connected to the input end side surface of the ventilation duct. The second snap-fit ​​assembly includes a second mounting plate, a second slot, and a second hook plate. The second slot is located on the upper surface of the second mounting plate. A plug is fixedly connected to the inner wall of the upper side of the connecting body. A sealing ring is movably connected to the side surface of the plug.

[0007] By using the above technical solution, and by setting up the first snap-fit ​​component and the second snap-fit ​​component, the connection method between the fan body, the connecting body and the ventilation duct is changed from the traditional complex binding or fixing to snap-fit ​​engagement, which greatly simplifies the installation and disassembly process, significantly improves the connection efficiency, and at the same time, the setting of the sealing ring can effectively fill the gap between the ventilation duct and the connecting body, enhance the sealing of the connection part, reduce air leakage during the ventilation process, ensure the ventilation effect, and reduce energy consumption.

[0008] The present invention is further configured such that a first flange plate is fixedly connected to the output end side surface of the fan body, and mounting bolts are arranged in an array on the upper surface of the first flange plate, and mounting nuts are threadedly connected to the side surface of the mounting bolts.

[0009] Through the above technical solution, the cooperation of the first flange plate, the second flange plate, the mounting bolts, and the mounting nuts provides a stable and detachable connection between the fan body and the connecting body. Compared with non-detachable connections such as welding, this method is more convenient and faster when the fan body needs to be repaired, replaced, or adjusted, reducing maintenance difficulty and cost. At the same time, the tight connection method can ensure the firmness of the connection, so that the fan body remains stable during operation and avoids vibration and noise caused by loose connection.

[0010] The present invention is further configured such that a second flange plate is fixedly connected to the lower end side surface of the connecting body, the mounting bolt passes through the second flange plate, and the upper surface of the second flange plate contacts the mounting nut.

[0011] The present invention is further configured such that the side surface of the connecting body is fixedly connected to the first hook plate, and the side surface of the ventilation duct is fixedly connected to the second hook plate.

[0012] Through the above technical solution, the first hook plate and the second hook plate are fixedly connected to the connecting body and the ventilation duct respectively, providing a stable connection foundation for the snap-fit ​​assembly. This fixed connection method can ensure that the hook plate will not loosen or fall off during the snap-fit ​​process, ensuring the reliability and stability of the snap-fit. At the same time, the fixedly connected hook plate is easy to operate during installation and disassembly, improving the convenience of connection.

[0013] The present invention is further configured such that the tip of the first hook plate is engaged in the second slot, and the tip of the second hook plate is engaged in the first slot.

[0014] Through the above technical solution, the first hook plate and the second slot, and the second hook plate and the first slot are interlocked to form a two-way locking connection structure. This structure can effectively fix the connecting body and the ventilation duct in the horizontal direction, preventing relative displacement of the two due to airflow impact or external force during ventilation, ensuring the tightness and stability of the connection. Moreover, the connection operation is simple, greatly saving installation time and labor costs.

[0015] The present invention is further configured such that a through groove is provided on the side surface of the second hook plate, the fastening long bolt passes through the through groove, a fastening nut is threadedly connected to the side surface of the fastening long bolt, and the two ends of the side surface of the second hook plate are in contact with the fastening nut and the vertical plate, respectively.

[0016] Through the above technical solution, the fastening long bolt passes through the through groove of the second hook plate and cooperates with the fastening nut. After the snap-fit ​​is completed, the second hook plate can be further tightened by tightening the fastening nut, which enhances the connection strength of the snap-fit ​​part.

[0017] The present invention is further configured such that the input end of the ventilation duct contacts the sealing ring, the side surface of the insert is provided with an annular groove, and the sealing ring is located in the annular groove.

[0018] The beneficial effects of this utility model are as follows:

[0019] By using the first hook plate, first slot, and second hook plate and second slot of the quick-connect component, the connection body and ventilation duct can be quickly connected and disassembled. Compared with the traditional binding method, the installation and disassembly time is greatly shortened, and the work efficiency is improved. The insertion sleeve and ring groove at the connection point form a good seal between the connection body and the ventilation duct opening, effectively preventing air leakage, ensuring ventilation effect, and reducing energy waste. At the same time, the spring-loaded long bolt, fastening nut and vertical plate work together to make the connection between the connection body and the ventilation duct more secure and less likely to fall off. Attached Figure Description

[0020] Figure 1 This is a first-view structural diagram of a device for conveniently connecting a small-power outdoor fan to a ventilation duct opening, according to this utility model.

[0021] Figure 2 This is a structural diagram of the fan body of a small-power fan for easy connection to a ventilation duct inlet according to the present invention;

[0022] Figure 3 This is a connection structure diagram of a device for conveniently connecting a small-power outdoor fan to a ventilation duct opening, which is a utility model.

[0023] Figure 4 This is a structural diagram of a ventilation duct for a convenient connection device between a small-power outdoor fan and a ventilation duct opening, according to this utility model.

[0024] Figure 5 This is a partially exploded view of a device for conveniently connecting a small-power outdoor fan to a ventilation duct in this utility model.

[0025] Figure 6 yes Figure 1 Enlarged view of point A in the middle.

[0026] Reference numerals in the attached drawings: 1. Fan body; 2. Extension pipe; 3. First flange plate; 4. Mounting bolt; 5. Mounting nut; 6. Connecting body; 7. Second flange plate; 8. First hook plate; 9. First mounting plate; 10. First slot; 11. Vertical plate; 12. Fastening long bolt; 13. Fastening nut; 14. Ventilation duct; 15. Second mounting plate; 16. Second slot; 17. Second hook plate; 18. Through groove; 19. Insert; 191. Annular groove; 20. Sealing ring. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] like Figures 1-6 As shown, this embodiment of a device for conveniently connecting a small-power outdoor fan to a ventilation duct includes a fan body 1, a connecting body 6, and a ventilation duct 14. A first flange plate 3 is fixedly connected to the output end side surface of the fan body 1. Mounting bolts 4 are arranged in an array on the upper surface of the first flange plate 3. Mounting nuts 5 are threadedly connected to the side surface of the mounting bolts 4. A second flange plate 7 is fixedly connected to the lower end side surface of the connecting body 6. The mounting bolts 4 penetrate the second flange plate 7, and the upper surface of the second flange plate 7 contacts the mounting nuts 5.

[0029] The cooperation of the first flange plate 3, the second flange plate 7, the mounting bolts 4, and the mounting nuts 5 provides a stable and detachable connection between the fan body 1 and the connecting body 6. Compared with non-detachable connections such as welding, this method is more convenient and faster when the fan body 1 needs to be repaired, replaced, or adjusted, reducing maintenance difficulty and cost. At the same time, the tight connection method can ensure the firmness of the connection, so that the fan body 1 remains stable during operation and avoids vibration and noise caused by loose connection.

[0030] An extension pipe 2 is welded to the output end of the fan body 1. The outer diameter of the extension pipe 2 is the same as the inner diameter of the connecting body 6. When the fan body 1 is connected to the connecting body 6, the extension pipe 2 is inserted into the connecting body 6 to increase the sealing of the connection. A first snap-fit ​​assembly is fixedly connected to the upper side surface of the connecting body 6. The first snap-fit ​​assembly includes a first mounting plate 9, a first slot 10 and a first hook plate 8. The first slot 10 is located on the lower surface of the first mounting plate 9. A vertical plate 11 is fixedly connected to the upper surface of the first mounting plate 9. A fastening long bolt 12 is fixedly connected to the side surface of the vertical plate 11. A fastening nut 13 is threadedly connected to the side surface of the fastening long bolt 12. The side surface of the connecting body 6 is fixedly connected to the first hook plate 8. The side surface of the ventilation duct 14 is fixedly connected to the second hook plate 17.

[0031] A second snap-fit ​​assembly is fixedly connected to the input end side surface of the ventilation duct 14. The second snap-fit ​​assembly includes a second mounting plate 15, a second slot 16, and a second hook plate 17. The second slot 16 is located on the upper surface of the second mounting plate 15. A plug 19 is fixedly connected to the inner wall of the upper side of the connecting body 6. A sealing ring 20 is movably connected to the side surface of the plug 19. The tip of the first hook plate 8 is snapped into the second slot 16, and the tip of the second hook plate 17 is snapped into the first slot 10.

[0032] When connecting the main body 6 and the ventilation duct 14, the sealing ring 20 is installed in the annular groove 191. Then, the first snap-fit ​​component and the second snap-fit ​​component are staggered to connect the main body 6 and the ventilation duct 14. At this time, the insert 19 is inserted into the ventilation duct 14. The outer diameter of the insert 19 is the same as the inner diameter of the ventilation duct 14. The lower end of the ventilation duct 14 contacts the sealing ring 20. At this time, the main body 6 is rotated so that the tip of the first hook plate 8 rotates into the second slot 16 and the tip of the second hook plate 17 rotates into the first slot 10, thus completing the initial positioning of the connection between the main body 6 and the ventilation duct 14. During the rotation of the main body 6, the long bolt 12 is tightened through the through groove 18. When the second hook plate 17 contacts the vertical plate 11, the fastening nut 13 is tightened to complete the installation.

[0033] The side surface of the second hook plate 17 is provided with a through groove 18, the fastening long bolt 12 passes through the through groove 18, and the side surface of the fastening long bolt 12 is threaded with a fastening nut 13. The two ends of the side surface of the second hook plate 17 are in contact with the fastening nut 13 and the vertical plate 11 respectively. The input end of the ventilation duct 14 is in contact with the sealing ring 20. The side surface of the insert 19 is provided with an annular groove 191, and the sealing ring 20 is located in the annular groove 191.

[0034] By setting up the first and second snap-fit ​​components, the connection method between the fan body 1, the connecting body 6, and the ventilation duct 14 is changed from the traditional complex binding or fixing to snap-fit ​​engagement, which greatly simplifies the installation and disassembly process and significantly improves the connection efficiency. At the same time, the setting of the sealing ring 20 can effectively fill the gap between the ventilation duct 14 and the connecting body 6, enhance the sealing of the connection, reduce air leakage during the ventilation process, ensure the ventilation effect, and reduce energy consumption. The mutual snap-fit ​​of the first hook plate 8 and the second slot 16, and the second hook plate 17 and the first slot 10 form a two-way locking connection structure. This structure can effectively fix the connecting body 6 and the ventilation duct 14 in the horizontal and vertical directions, preventing relative displacement of the two due to airflow impact or external force during the ventilation process, ensuring the tightness and stability of the connection. Moreover, the connection operation is simple, greatly saving installation time and labor costs.

[0035] The working principle of this utility model is as follows: When connecting the other end of the connecting body 6 to the ventilation duct 14, the sealing ring 20 is first installed in the annular groove 191 of the insert 19. At this time, the ventilation duct 14 and the connecting body 6 are connected, the insert 19 is inserted into the ventilation duct 14, and the connecting end of the ventilation duct 14 contacts the sealing ring 20. At this time, the connecting body 6 is rotated so that the first hook plate 8 is inserted into the second slot 16 during rotation, and the second hook plate 17 is inserted into the first slot 10. During rotation, the long bolt 12 is tightened through the through groove 18 so that the vertical plate 11 contacts the second hook plate 17. The fastening nut 13 is screwed in to complete the installation of the connecting body 6 and the ventilation duct 14. Then, the fan body 1 and the connecting body 6 are fixedly connected together by the first flange plate 3, the second flange plate 7, the mounting bolt 4, and the mounting nut 5. During connection, the extension tube 2 is inserted into the connecting body 6 to increase the sealing of the connection.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A convenient connection air duct port device for small power fan outside the warehouse, characterized in that: Includes the fan body (1), the connecting body (6) and the ventilation duct (14); The output end of the fan body (1) is welded with an extension pipe (2), and the upper side surface of the connecting body (6) is fixedly connected with a first snap-fit ​​assembly. The first snap-fit ​​assembly includes a first mounting plate (9), a first slot (10) and a first hook plate (8). The first slot (10) is located on the lower surface of the first mounting plate (9). The upper surface of the first mounting plate (9) is fixedly connected with a vertical plate (11). The side surface of the vertical plate (11) is fixedly connected with a fastening long bolt (12). The side surface of the fastening long bolt (12) is threaded with a fastening nut (13). The input end side surface of the ventilation duct (14) is fixedly connected to a second snap-fit ​​assembly. The second snap-fit ​​assembly includes a second mounting plate (15), a second slot (16) and a second hook plate (17). The second slot (16) is located on the upper surface of the second mounting plate (15). The upper inner wall of the connecting body (6) is fixedly connected to a plug (19). The side surface of the plug (19) is movably connected to a sealing ring (20).

2. The device according to claim 1, characterized in that, The output end side surface of the fan body (1) is fixedly connected to a first flange plate (3), and the upper surface of the first flange plate (3) is provided with an array of mounting bolts (4), and the side surface of the mounting bolts (4) is threaded with mounting nuts (5).

3. The device according to claim 2, characterized in that, The lower end side surface of the connecting body (6) is fixedly connected to a second flange plate (7), the mounting bolt (4) passes through the second flange plate (7), and the upper surface of the second flange plate (7) contacts the mounting nut (5).

4. The device according to claim 1, characterized in that, The side surface of the connecting body (6) is fixedly connected to the first hook plate (8), and the side surface of the ventilation duct (14) is fixedly connected to the second hook plate (17).

5. The device according to claim 1, characterized in that, The tip of the first hook plate (8) is engaged in the second slot (16), and the tip of the second hook plate (17) is engaged in the first slot (10).

6. The device according to claim 1, characterized in that, The second hook plate (17) has a through groove (18) on its side surface. The fastening long bolt (12) passes through the through groove (18). The fastening long bolt (12) has a fastening nut (13) threadedly connected to its side surface. The two ends of the side surface of the second hook plate (17) are in contact with the fastening nut (13) and the vertical plate (11), respectively.

7. The device according to claim 1, characterized in that, The inlet end of the ventilation duct (14) is in contact with the sealing ring (20), and the side surface of the insert (19) is provided with an annular groove (191), and the sealing ring (20) is located in the annular groove (191).

Images