Fan convenient to plug in

Abstract

The utility model discloses a fan convenient to plug, relate to fan technical field. The fan convenient to plug includes fan main part and fan blade, a plurality of fan core is arranged to fan main body along the circumference, the fan blade has the interface of plugging, is provided with the joint part and a plurality of spacing rib board on the inner wall of interface of plugging, the fan core is respectively with joint part, spacing rib board is adapted, and the fan core is adapted and plugs in interface of plugging. In the utility model, the fan core cooperates with the joint part and the fixed rib plate, not only is convenient for the plug-in installation of fan core and fan blade, avoids the complicated installation process, improves the speed of staff installation, dismounts the fan blade, significantly improves work efficiency, and can also effectively improve the fixing strength between fan core and fan blade, avoids the problem that the fan core is loose after long -time use with fan blade, significantly improves use security.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a fan that is easy to plug in. Background Technology

[0002] Currently, industrial ceiling fan blades are typically manufactured using a one-piece molding process. While this ensures structural strength and aerodynamic performance, it presents significant limitations as fan size increases, such as large industrial fans with diameters exceeding 2 meters. Firstly, the large individual blades are susceptible to space constraints during transportation, leading to high logistics costs and the risk of damage and deformation. Secondly, on-site installation requires heavy lifting equipment, raising safety requirements for high-altitude operations and increasing the difficulty of manual coordination, thus reducing installation efficiency. Existing technologies include split-blade and folding-blade designs. Split-blade designs rely solely on bolt connections, often resulting in stress concentration at the joints, reducing overall rigidity. Furthermore, insufficient splicing precision can affect the overall dynamic balance of the ceiling fan. Folding-blade designs suffer from insufficient hinge strength, easily generating noise during high-speed fan rotation. Utility Model Content

[0003] In view of the problems of existing ceiling fans being inconvenient to install and having insufficient structural strength at the blade connection, this utility model provides a fan that is easy to plug in.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A fan that is easy to plug in includes a fan body and fan blades. The fan body is provided with a plurality of fan blade cores along the circumference. The fan blades have a plug-in interface. The inner wall of the plug-in interface is provided with a snap-fit ​​part and a plurality of limiting ribs. The fan blade cores are respectively adapted to the snap-fit ​​part and the limiting ribs, and the fan blade cores are adapted to be plugged into the plug-in interface.

[0006] Furthermore, the fan blade has several through fixing holes and is fixedly connected to the fan blade core by several bolts.

[0007] Furthermore, the limiting rib includes a first limiting rib and a second limiting rib, both of which are fixedly connected to the inner wall of one side of the insertion interface, and the protrusion height of the snap-fit ​​part is less than the protrusion height of the limiting rib.

[0008] Furthermore, the limiting rib plate also includes a third limiting rib plate and a fourth limiting rib plate, both of which are fixedly connected to the inner wall of the other side of the insertion interface.

[0009] Furthermore, the third limiting rib plate is arranged opposite to the first limiting rib plate, and there is a gap between them. The fourth limiting rib plate is arranged opposite to the second limiting rib plate, and there is a gap between them.

[0010] Furthermore, the snap-fit ​​portion includes a plurality of first fixing ribs and a plurality of second fixing ribs. Each first fixing rib is located between the first limiting rib and the second limiting rib and is fixedly connected to the inner wall of the insertion interface. Each second fixing rib is located between the third limiting rib and the fourth limiting rib and is fixedly connected to the inner wall of the insertion interface. The first fixing ribs and the second fixing ribs are arranged opposite to each other.

[0011] Furthermore, the fan blade core is a first fan blade core, the top of the first fan blade core is provided with a plurality of first limiting grooves adapted to the first fixing rib plate, and the bottom is provided with a plurality of second limiting grooves adapted to the second fixing rib plate.

[0012] Furthermore, the top right side of the first fan blade core protrudes upward to form a protrusion, which is arc-shaped. There are two first limiting grooves: the left first limiting groove is located on the top left side of the first fan blade core, and the right first limiting groove is located on the protrusion.

[0013] Furthermore, the snap-fit ​​portion includes a first limiting block and a second limiting block. The first limiting block is located between the first limiting rib and the second limiting rib and is fixedly connected to the inner wall of the insertion interface. The protrusion height of the first limiting block is less than the protrusion height of the first limiting rib and the second limiting rib. The second limiting block is fixedly connected to the inner wall of the other side of the insertion interface and is spaced apart from the first limiting block.

[0014] Furthermore, the fan blade core is a second fan blade core, the cross-section of which is rectangular, and it is disposed within the interval between the first limiting block and the second limiting block.

[0015] The beneficial effects of this utility model are as follows: In this utility model, the fan blade core, the snap-fit ​​part, and the fixing rib plate cooperate to facilitate the insertion and installation of the fan blade core and the fan blade, avoid the cumbersome installation process, increase the speed of the workers to install and disassemble the fan blade, and significantly improve work efficiency. Moreover, it can effectively improve the fixing strength between the fan blade core and the fan blade, avoid the problem of the fan blade loosening from the fan blade core after long-term use, and significantly improve the safety of use. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic diagram of the structural principle of one embodiment of this utility model.

[0017] Figure 2 As shown Figure 1 Partial structural diagram of the middle part.

[0018] Figure 3 The diagram shown is a structural schematic of the first fan blade core in one embodiment of this utility model.

[0019] Figure 4 As shown Figure 3 The front view.

[0020] Figure 5 The image shown is a cross-sectional view of the first fan blade in one embodiment of this utility model.

[0021] Figure 6 The above is a schematic diagram of the installation of the first blade and the first blade core.

[0022] Figure 7 The diagram shown is a structural schematic of the second fan blade core in another embodiment of this utility model.

[0023] Figure 8 The figure shown is a cross-sectional view of the second blade in another embodiment of the present invention.

[0024] Figure 9 The diagram shows the installation of the second blade and the second blade core.

[0025] Explanation of reference numerals in the attached drawings: 1. Fan body; 2. First fan blade; 3. First fan blade core; 301. Protrusion; 302. First limiting groove; 303. Second limiting groove; 4. First limiting rib; 5. Second limiting rib; 6. Third limiting rib; 7. Fourth limiting rib; 8. First fixing rib; 9. Second fixing rib; 10. Second fan blade core; 11. Second fan blade; 12. First limiting block; 13. Second limiting block. Detailed Implementation

[0026] This utility model discloses a fan that is easy to plug in. The following describes one embodiment of this utility model in detail with reference to the accompanying drawings.

[0027] Combination Figure 1 and Figure 2As shown, a plug-in fan includes a fan body 1 and first blades 2. The fan body 1 has a plurality of first blade cores 3 evenly arranged circumferentially. The first blades 2 have a through-hole connector, making them hollow to significantly reduce their weight. The inner wall of the connector has a snap-fit ​​part and a plurality of limiting ribs. The first blade cores 3 are respectively adapted to the snap-fit ​​part and the limiting ribs, and are inserted into the connector accordingly. Both the first blades 2 and the first blade cores 3 have a plurality of through-hole fixing holes, and the fixing holes on the first blades 2 correspond to the fixing holes on the first blade cores 3. The first blades 2 and the first blade cores 3 are fixedly connected by bolts.

[0028] Combination Figure 3 and Figure 4 As shown, the limiting ribs include a first limiting rib 4, a second limiting rib 5, a third limiting rib 6, and a fourth limiting rib 7. There is a gap between the first limiting rib 4 and the second limiting rib 5, and both the first and second limiting ribs 4 and 5 are fixedly connected to the upper inner wall of the insertion interface. There is also a gap between the third limiting rib 6 and the fourth limiting rib 7, and both are fixedly connected to the lower inner wall of the insertion interface. The first limiting rib 4 and the third limiting rib 6 are arranged vertically opposite each other, with a gap between them. Similarly, the second limiting rib 5 and the fourth limiting rib 7 are arranged vertically opposite each other, with a gap between them. The cross-sections of the first limiting rib 4, the second limiting rib 5, the third limiting rib 6, and the fourth limiting rib 7 are all rectangular, and all corners are chamfered.

[0029] like Figure 5As shown, the snap-fit ​​part includes several first fixing ribs 8 and several second fixing ribs 9. Each first fixing rib 8 is located between a first limiting rib 4 and a second limiting rib 5, and is fixedly connected to the upper inner wall of the insertion interface. The protrusion height of each first fixing rib 8 relative to the upper inner wall of the insertion interface is less than the protrusion height of the first limiting rib 4 and the second limiting rib 5 relative to the upper inner wall of the insertion interface. Each second fixing rib 9 is located between a third limiting rib 6 and a fourth limiting rib 7, and is fixedly connected to the lower inner wall of the insertion interface. The protrusion height of each second fixing rib 9 relative to the lower inner wall of the insertion interface is less than the protrusion height of the third limiting rib 6 and the fourth limiting rib 7 relative to the lower inner wall of the insertion interface. The first fixing ribs 8 located on the upper side of the insertion interface and the second fixing ribs 9 located on the lower side of the insertion interface are arranged opposite each other in the vertical direction, achieving a one-to-one correspondence. The front end of the first blade core 3 is inclined. The top of the first blade core 3 has several first limiting grooves 302 that adapt to the first fixing rib 8, and the bottom has several second limiting grooves 303 that adapt to the second fixing rib 9. In this embodiment, the top right side of the first blade core 3 protrudes upward to form a protrusion 301. The upper surface of the protrusion 301 is arc-shaped to adapt to the arc-shaped surface of the first blade 2, reducing the gap between them and improving the structural strength of the connection. There are two first limiting grooves 302: the left first limiting groove 302 is located on the top left side of the first blade core 3, and the right first limiting groove 302 is located on the protrusion 301.

[0030] like Figure 6 As shown, during installation, the worker aligns the first blade core 3 with the insertion interface, ensuring that the first limiting grooves 302 correspond to the first fixing ribs 8, and the second limiting grooves 303 correspond to the second fixing ribs 9. A receiving space is formed between the first limiting ribs 4, 5, 6, and 7. The first blade core 3 is inserted into this receiving space, and under continuous external force, the first fixing ribs 8 slide along the first limiting grooves 302, and the second fixing ribs 9 slide along the second limiting grooves 303, until they reach the appropriate position. At this point, the fixing holes of the first blade 2 and the first blade core 3 are on the same axis. Finally, the worker uses bolts, nuts, and washers to securely connect the blade to the first blade core 3.

[0031] The following describes another embodiment of the present invention in detail with reference to the accompanying drawings.

[0032] A plug-in fan includes a fan body 1 and second blades 11. The fan body 1 has a plurality of second blade cores 10 evenly arranged circumferentially. Each second blade 11 has a through-hole connector, making it a hollow structure to significantly reduce its weight. The inner wall of the connector has a snap-fit ​​part and a plurality of limiting ribs. The second blade cores 10 are respectively adapted to the snap-fit ​​part and the limiting ribs, and are inserted into the connector accordingly. Both the second blades 11 and the second blade cores 10 have a plurality of through-hole fixing holes, and the fixing holes on the second blades 11 correspond to the fixing holes on the second blade cores 10. The second blades 11 and the second blade cores 10 are fixedly connected by bolts.

[0033] Combination Figure 7 , Figure 8 as well as Figure 9 As shown, the limiting ribs include a first limiting rib 4 and a second limiting rib 5, which are fixedly connected to the upper inner wall of the insertion interface. Both the first limiting rib 4 and the second limiting rib 5 have rectangular cross-sections. The snap-fit ​​part includes a first limiting block 12 and a second limiting block 13. The first limiting block 12 is located between the first limiting rib 4 and the second limiting rib 5 and is fixedly connected to the upper inner wall of the insertion interface. The second limiting block 13 corresponds to the first limiting block 12 and is fixedly connected to the lower inner wall of the insertion interface. The protrusion height of the first limiting block 12 relative to the upper inner wall of the insertion interface is less than the protrusion heights of the first limiting rib 4 and the second limiting rib 5 relative to the upper inner wall of the insertion interface. There is a gap between the first limiting block 12 and the second limiting block 13, and this gap is adapted to the second fan blade core 10. The cross-section of the second blade core 10 is rectangular. During installation, the worker aligns the second blade core 10 with the insertion interface and applies force. The left and right outer walls of the second blade core 10 contact the first limiting rib plate 4 and the second limiting rib plate 5 and slide relative to each other. At the same time, the upper and lower outer walls of the second blade core 10 contact the first limiting block 12 and the second limiting block 13 and slide until they are in the correct position. At this time, the fixing hole of the second blade 11 and the fixing hole of the second blade core 10 are on the same axis. Finally, the worker fixes the second blade 11 and the second blade core 10 together with bolts, nuts and washers.

[0034] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A fan that is easy to plug in, characterized in that: The fan body (1) includes a fan body (1) and fan blades. The fan body (1) is provided with a plurality of fan blade cores along the circumferential direction. The fan blades have an insertion interface. The inner wall of the insertion interface is provided with a snap-fit ​​part and a plurality of limiting ribs. The fan blade cores are respectively adapted to the snap-fit ​​part and the limiting ribs. The fan blade cores are adapted to be inserted into the insertion interface. The fan blade has several through fixing holes and is fixedly connected to the fan blade core by several bolts; The limiting ribs include a first limiting rib (4) and a second limiting rib (5). The first limiting rib (4) and the second limiting rib (5) are both fixedly connected to the inner wall of one side of the insertion interface. The protrusion height of the snap-fit ​​part is less than the protrusion height of the limiting rib.

2. The easy-to-plug fan according to claim 1, characterized in that: The limiting rib plate also includes a third limiting rib plate (6) and a fourth limiting rib plate (7), and the third limiting rib plate (6) and the fourth limiting rib plate (7) are both fixedly connected to the inner wall of the other side of the insertion interface.

3. A plug-in fan according to claim 2, characterized in that: The third limiting rib (6) and the first limiting rib (4) are arranged opposite to each other and are spaced apart; The fourth limiting rib (7) and the second limiting rib (5) are arranged opposite to each other and are spaced apart.

4. A plug-in fan according to claim 3, characterized in that: The snap-fit ​​part includes a plurality of first fixing ribs (8) and a plurality of second fixing ribs (9). Each first fixing rib (8) is located between the first limiting rib (4) and the second limiting rib (5) and is fixedly connected to the inner wall of the insertion interface. Each of the second fixing ribs (9) is located between the third limiting rib (6) and the fourth limiting rib (7), and is fixedly connected to the inner wall of the insertion interface; Each of the first fixing ribs (8) and each of the second fixing ribs (9) are arranged opposite to each other.

5. A plug-in fan according to claim 4, characterized in that: The fan blade core adopts a first fan blade core (3). The top of the first fan blade core (3) is provided with a number of first limiting grooves (302) that are adapted to the first fixing rib plate (8), and the bottom is provided with a number of second limiting grooves (303) that are adapted to the second fixing rib plate (9).

6. A plug-in fan according to claim 5, characterized in that: The top right side of the first fan blade core (3) protrudes upward to form a protrusion (301), and the protrusion (301) is arc-shaped; There are two first limiting grooves (302). The first limiting groove (302) on the left is located on the top left side of the first fan blade core (3), and the first limiting groove (302) on the right is located on the protrusion (301).

7. A plug-in fan according to claim 1, characterized in that: The snap-fit ​​part includes a first limiting block (12) and a second limiting block (13). The first limiting block (12) is located between the first limiting rib (4) and the second limiting rib (5) and is fixedly connected to the inner wall of the insertion interface. The protrusion height of the first limiting block (12) is less than the protrusion height of the first limiting rib (4) and the second limiting rib (5); The second limiting block (13) is fixedly connected to the inner wall of the other side of the insertion interface and has a gap between it and the first limiting block (12).

8. A plug-in fan according to claim 7, characterized in that: The fan blade core adopts a second fan blade core (10), the cross section of the second fan blade core is rectangular, and it is arranged in the interval between the first limiting block (12) and the second limiting block (13).

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