A modular fan with detachable fan blades

Abstract

This utility model discloses a modular fan with detachable blades, including a support, a motor mounted on the support, a rotating base mounted on the output end of the motor, a plurality of slots arranged in a ring on the outer wall of the rotating base, an arc-shaped plate inserted into the slots, the arc-shaped plate being inserted along the extension direction of the slots, a fan blade body mounted on the arc-shaped plate, a cylindrical block fixedly mounted on the end of the rotating base away from the motor by screws, a ring rotatably connected to the cylindrical block, a plurality of protrusions arranged in a ring on the ring, the number of protrusions corresponding to the number of arc-shaped plates, the protrusions contacting the arc-shaped plates, a connecting locking groove provided between the protrusions and the arc-shaped plates, a limit pin inserted into the locking groove, the end of the limit pin away from the arc-shaped plate extending to the outside of the protrusion, and a limit block provided at the end, a return spring fixedly connected between the limit block and the protrusion. The fan blade body of this utility model can be disassembled and assembled without the aid of any tools, the operation is simple and quick, and the user experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric fan technology, specifically a modular fan with detachable blades. Background Technology

[0002] An electric fan, also known as a fan or ventilator, is a household appliance that uses an electric motor to drive fan blades to rotate, thereby accelerating air circulation. It is primarily used for cooling and air circulation. It is widely used in homes, classrooms, offices, shops, hospitals, hotels, and other places.

[0003] However, dust and dirt easily accumulate on the surface of the fan blades during long-term use. Traditional electric fans are usually designed with the fan blades and the rotating base molded as one piece, which makes it difficult for users to clean and maintain the fan, affecting its performance. If a fan with dirt continues to run, the dust attached to the fan blades may be blown towards the user. Utility Model Content

[0004] The purpose of this invention is to provide a modular fan with detachable blades to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A modular fan with detachable blades includes a support, on which a motor is mounted. A rotating base is mounted at the output end of the motor. The outer wall of the rotating base has a plurality of slots arranged in a ring. An arc-shaped plate is inserted into each of the slots, extending along the extension direction of the slot. A fan blade body is mounted on the arc-shaped plate. A cylindrical block is fixedly mounted to the rotating base away from the motor by screws. A ring is rotatably connected to the cylindrical block. A plurality of protrusions are arranged in a ring on the ring, the number of which corresponds to the number of arc-shaped plates. The protrusions contact the arc-shaped plates. A locking groove is provided between the protrusions and the arc-shaped plates. A limiting pin is inserted into the locking groove. The end of the limiting pin away from the arc-shaped plate extends to the outside of the protrusion and has a limiting block at its end. A return spring is fixedly connected between the limiting block and the protrusion.

[0007] Furthermore, a limiting part is provided at the end of the cylindrical block away from the rotating seat, and the limiting part contacts the side wall of the ring.

[0008] Furthermore, the card slot has insert blocks on both sides of its side walls, and the arc-shaped plate has slots on both sides for inserting the insert blocks.

[0009] Furthermore, the fan blade body is covered with a mesh cover, which is detachably connected to the motor.

[0010] Furthermore, the mesh cover includes two cover bodies, each of which has a raised strip on an adjacent side. The outer ends of the two raised strips are surrounded by a concave strip. Both ends of the concave strip have an extension block. The two extension blocks have corresponding through holes. A bolt passes through the through hole, and the other end of the bolt is threaded with a nut.

[0011] The beneficial effects of this utility model are:

[0012] When the user needs to clean and maintain the fan blade body, this utility model first pulls all the limit pins outwards simultaneously. At this time, the return spring is in a stretched state. Then, rotate the ring to displace the protrusions on the ring from the arc plate, releasing the obstruction of the protrusions on the arc plate. Then, put the limit pins back into the locking grooves of the corresponding protrusions. The ends of the limit pins abut against the ends of the rotating seats. At this time, the arc plate can be pulled out directly along the extension direction of the slot, thus completing the disassembly of the fan blade body module for easy cleaning. When reinstalling, first insert the arc plate with the fan blade body into place along the slot direction. Then, rotate the ring to make the protrusions on the ring contact the arc plate again. When the ring rotates, it drives the limit pins to rotate as well. When the locking grooves on the protrusions and arc plates are aligned, the stretched return spring returns to its original state, causing the limit pins to automatically insert into the locking grooves, completing the locking of the protrusions and arc plates. This makes the disassembly and assembly of the fan blade body simple and quick, without the need for any tools.

[0013] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0014] Figure 1 : Overall structural diagram of this utility model.

[0015] Figure 2 : Exploded view of this utility model.

[0016] Figure 3 : A diagram showing the connecting structure of the rotating seat of this utility model.

[0017] Figure 4 : Exploded view of the rotating seat of this utility model.

[0018] Figure 5 : Exploded view of the connection between the cylindrical block and the ring of this utility model.

[0019] Figure 6 : A cross-sectional view of the mesh cover of this utility model.

[0020] Reference numerals in the attached drawings: 1. Support; 2. Motor; 3. Rotating seat; 4. Mesh cover; 31. Slot; 32. Arc plate; 33. Cylindrical block; 41. Cover body; 42. Protruding strip; 43. Concave strip; 44. Extended block; 45. Through hole; 46. Bolt; 47. Nut; 311. Insert block; 321. Slot; 322. Fan blade body; 331. Ring; 332. Protrusion; 333. Locking groove; 334. Limiting pin; 335. Limiting block; 336. Return spring; 337. Limiting part. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Please refer to Figures 1-6 ;

[0023] A modular fan with detachable blades includes a support 1, a motor 2 mounted on the support 1, and a rotating base 3 mounted on the output end of the motor 2. The outer wall of the rotating base 3 has a ring array of slots 31, within which arc-shaped plates 32 are engaged. The arc-shaped plates 32 are inserted along the extension direction of the slots 31. Specifically, the side walls of the slots 31 are provided with insert blocks 311, and the sides of the arc-shaped plates 32 are provided with slots 321 for inserting the insert blocks 311. When the arc-shaped plates 32 are inserted into the slots 31 of the rotating base 3, the insert blocks 311 are inserted into the slots 321 on the sides of the arc-shaped plates 32, thereby securing and fixing the arc-shaped plates 32. The arc-shaped plates 32 are provided with fan blade bodies 322. When the motor 2 starts, it drives the rotating base 3 to rotate, thereby driving all the arc-shaped plates 32 and their fan blade bodies 322 to rotate synchronously, thus realizing the fan's air delivery function. A cylindrical block 33 is fixedly mounted on the rotating base 3 a section away from the motor 2 by screws. A ring 331 is rotatably connected to the cylindrical block 33, and the ring 331 can rotate relative to the cylindrical block 33. The ring 331 has a plurality of protrusions 332 arranged in a ring array. The number of protrusions 332 corresponds to the number of arc-shaped plates 32. Preferably, this application has three arc-shaped plates 32, so there are also three corresponding protrusions 332. The protrusions 332 contact the arc-shaped plates 32 and block the arc-shaped plates 32. When the fan rotates at high speed, it prevents the arc-shaped plates 32 from displacing and falling off, ensuring safety during use. The protrusion 332 and the arc-shaped plate 32 are provided with a connecting locking groove 333. A limiting pin 334 is inserted into the locking groove 333 to lock the protrusion 332 and the arc-shaped plate 32 together. This ensures that the protrusion 332 and the arc-shaped plate 32 will not be misaligned during high-speed operation of the fan, avoiding the risk of the arc-shaped plate 32 falling off and further improving the safety of use. The end of the limiting pin 334 away from the arc-shaped plate 32 extends to the outside of the protrusion 332 and is provided with a limiting block 335 at the end. A return spring 336 is fixedly connected between the limiting block 335 and the protrusion 332. Through the action of the return spring 336, the limiting pin 334 is always kept inserted into the locking groove 333, thereby ensuring that it can be stably inserted into the locking groove 333 and preventing the limiting pin 334 from loosening and falling off during use.

[0024] When the user needs to clean and maintain the fan blade body 322, firstly, all the limit pins 334 are pulled outwards at the same time. At this time, the return spring 336 is in a stretched state. Then, rotate the ring 331 so that the protrusion 332 on the ring 331 is misaligned with the arc plate 32, releasing the obstruction and limitation of the protrusion 332 on the arc plate 32. Then, put the limit pin 334 back into the locking groove 333 of the corresponding protrusion 332. The end of the limit pin 334 abuts against the end of the rotating seat 3. At this time, the arc plate 32 can be directly pulled out along the extension direction of the slot 31, thereby completing the disassembly of the fan blade body 322 module and facilitating cleaning. During reinstallation, first insert the arc plate 32 with the fan blade body 322 into place along the direction of the slot 31. Then, rotate the ring 331 so that the protrusion 332 on the ring 331 re-contacts the arc plate 32. When the ring 331 rotates, it drives the limiting pin 334 to rotate together. When the protrusion 332 and the locking groove 333 on the arc plate 32 are aligned, the stretched return spring 336 returns to its original state, driving the limiting pin 334 to automatically insert into the locking groove 333, thus completing the locking of the protrusion 332 and the arc plate 32. This makes the disassembly and assembly of the fan blade body 322 simple and quick, without the need for any tools.

[0025] In this embodiment, a limiting part 337 is provided at the end of the cylindrical block 33 away from the rotating seat 3. The limiting part 337 contacts the side wall of the ring 331. The limiting part 337 is used to prevent the ring 331 from shifting and to prevent the ring 331 from slipping when the fan is rotating at high speed.

[0026] In this embodiment, a mesh cover 4 is provided on the outer surface of the fan blade body 322. The mesh cover 4 is detachably connected to the motor 2. The mesh cover 4 is used to prevent foreign objects from approaching the fan blade body 322, thereby protecting the fan blade body 322. The mesh cover 4 includes two cover bodies 41. Each of the two cover bodies 41 has a protruding strip 42 on an adjacent side. The outer ends of the two protruding strips 42 are surrounded by concave strips 43. Both ends of the concave strips 43 have extension blocks 44. The two extension blocks 44 have corresponding through holes 45. Bolts 46 pass through the through holes 45. The other end of the bolts 46 is threaded with a nut 47. During installation, the bolts 46 are passed through the pair of through holes 45, and the nuts 47 are tightened on the other end of the bolts 46. By tightening the bolts 46 and the nuts 47, the two extension blocks 44 can be locked together, thereby assembling the two cover bodies 41 together.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A modular fan with detachable blades, comprising a support (1), on which a motor (2) is mounted, and a rotating base (3) is mounted at the output end of the motor (2), characterized in that, The outer wall of the rotating base (3) has a plurality of slots (31) arranged in a ring. An arc-shaped plate (32) is inserted into each of the slots (31). The arc-shaped plate (32) is inserted along the extension direction of the slot (31). A fan blade body (322) is provided on the arc-shaped plate (32). A cylindrical block (33) is fixedly installed on the end of the rotating base (3) away from the motor (2) by screws. A ring (331) is rotatably connected to the cylindrical block (33). A plurality of protrusions (332) are arranged in a ring on the ring (331). The number of blocks (332) corresponds to the number of arc plates (32). The protrusions (332) are in contact with the arc plates (32). The protrusions (332) and the arc plates (32) are provided with a connecting locking groove (333). A limiting pin (334) is inserted into the locking groove (333). One end of the limiting pin (334) away from the arc plate (32) extends to the outside of the protrusions (332) and a limiting block (335) is provided at the end. A return spring (336) is fixedly connected between the limiting block (335) and the protrusions (332).

2. A modular fan with detachable blades according to claim 1, characterized in that, The cylindrical block (33) has a limiting part (337) at one end away from the rotating seat (3), and the limiting part (337) is in contact with the side wall of the ring (331).

3. A modular fan with detachable blades according to claim 1, characterized in that, The card slot (31) has insert blocks (311) on both sides of its side walls, and the arc plate (32) has slots (321) on both sides for inserting the insert blocks (311).

4. A modular fan with detachable blades according to claim 1, characterized in that, The fan blade body (322) is covered with a mesh cover (4), which is detachably connected to the motor (2).

5. A modular fan with detachable blades according to claim 4, characterized in that, The mesh cover (4) includes two cover bodies (41). Each of the two cover bodies (41) has a protruding strip (42) on one side adjacent to each other. The outer ends of the two protruding strips (42) are surrounded by concave strips (43). Both ends of the concave strips (43) are provided with extension blocks (44). The two extension blocks (44) are provided with corresponding through holes (45). Bolts (46) are passed through the through holes (45). The other end of the bolts (46) is threaded with a nut (47).

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