A fan device

Abstract

This utility model provides a fan device, relating to the field of fan technology. The fan device includes a fan shroud, a motor head, and a locking assembly. The fan shroud and the motor head are adapted to rotate relative to each other. One of the fan shroud and the motor head has a receiving portion. The other of the fan shroud and the motor head is equipped with the locking assembly. The locking assembly includes a pull rod and an elastic element. The pull rod is slidably connected to the fan shroud or the motor head. The elastic element contacts the pull rod. When the pull rod is in the receiving portion, the pull rod restricts the relative rotation of the fan shroud and the motor head. When the pull rod is disengaged from the receiving portion, the pull rod is adapted to compress the elastic element. This utility model's fan device effectively improves the situation where the fan shroud and the motor head are prone to loosening.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and more specifically, to a fan device. Background Technology

[0002] In related technologies, common fan devices include a detachable fan cover and a fan head, which are connected by a rotating snap-fit ​​structure. That is, after the fan cover and the fan head are rotated into place, they are connected by the cooperation of snaps and slots.

[0003] However, when the fan is running, the high-speed operation of its internal motor and the rapid rotation of its blades generate a certain degree of vibration. This vibration is transmitted to various components of the fan, especially the connection between the fan shroud and the fan head. Because the rotary snap-fit ​​connection is relatively simple, its stability is easily affected by vibration. Under prolonged use or severe vibration, the snap-fit ​​between the fan shroud and the fan head may gradually loosen, causing a change in their relative positions. This not only affects the fan's appearance and overall structural stability but may also lead to safety issues; for example, the fan shroud may accidentally detach after loosening, causing injury to those nearby. Utility Model Content

[0004] The problem solved by this invention is how to improve the situation where the fan cover and the machine head are prone to loosening.

[0005] To address the aforementioned problems, this utility model provides a fan device, including a fan shroud, a motor head, and a locking assembly; the fan shroud and the motor head are adapted to rotate relative to each other; one of the fan shroud and the motor head is provided with a receiving portion; the other of the fan shroud and the motor head is equipped with the locking assembly; the locking assembly includes a pull rod and an elastic element; the pull rod is slidably connected to the fan shroud or the motor head; the elastic element is in contact with the pull rod; when the pull rod is located in the receiving portion, the pull rod restricts the relative rotation of the fan shroud and the motor head; when the pull rod retracts from the receiving portion, the pull rod is adapted to compress the elastic element.

[0006] Optionally, the sliding direction of the pull rod is perpendicular to the relative rotation plane of the shroud and the machine head.

[0007] Optionally, the fan device further includes a slide structure disposed on the fan cover or the fan head, the end of the pull rod away from the receiving part being slidably disposed on the slide structure, the elastic element being located within the slide structure and abutting against the pull rod along the sliding direction of the pull rod.

[0008] Optionally, the fan device further includes a guide device disposed on the fan cover or the fan head, the guide device having a through guide channel, and one end of the pull rod extending into the receiving part passing through the guide channel.

[0009] Optionally, the machine head has a receiving cavity inside; when the machine head is equipped with the locking assembly, the slide structure, the guide device, the elastic element and one end of the pull rod are all located in the receiving cavity, and the other end of the pull rod extends to the outside of the machine head.

[0010] Optionally, the machine head includes a cover plate and a housing body; the housing body has an installation port, the cover plate is detachably installed at the installation port, and the cover plate has a through opening; the guide device is disposed on the cover plate, and the through opening is connected to the guide channel; the slide structure is disposed within the housing body.

[0011] Optionally, the locking assembly further includes a wrench connected to the lever.

[0012] Optionally, the outer wall of the machine head is provided with an opening communicating with the receiving cavity. The opening extends along the sliding direction of the pull rod. One end of the wrench is connected to the pull rod through the opening, and the other end extends out of the opening. The wrench is configured to move along the extension direction of the opening when force is applied.

[0013] Optionally, one of the pull rod and the wrench is provided with a slot, and the other of the pull rod and the wrench is provided with a buckle, the buckle being engaged in the slot.

[0014] Optionally, one of the fan cover and the machine head is provided with a screw groove, and the other of the fan cover and the machine head is provided with a locking block; when the fan cover and the machine head rotate relative to each other, the locking block is adapted to enter or exit the screw groove.

[0015] Compared with related technologies, the beneficial effects of this utility model are as follows:

[0016] When relative rotation of the fan shroud and the fan head is required, the operator can apply force to the pull rod, causing it to disengage from the receiving part and compress the elastic element. At this point, the fan shroud and the fan head can rotate smoothly relative to each other, facilitating the installation and removal of the fan shroud. When the pull rod is aligned with the receiving part, the operator can release the force on the pull rod, causing the elastic element to return to its original position and pull the pull rod back into the receiving part. The elasticity of the elastic element ensures that the pull rod remains stably within the receiving part, firmly restricting the relative rotation of the fan shroud and the fan head. Even when the fan vibrates during operation, the elasticity of the elastic element effectively buffers the impact of vibration on the position of the pull rod, ensuring that the pull rod will not easily detach from the receiving part, thus effectively preventing loosening due to vibration. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the fan device according to an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional view of the fan device according to an embodiment of the present utility model;

[0019] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the locking component according to an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the shell body structure according to an embodiment of the present utility model. Figure 1 ;

[0022] Figure 6 This is a schematic diagram of the cover plate in an embodiment of the present utility model. Figure 1 ;

[0023] Figure 7 This is a schematic diagram of the shell body structure according to an embodiment of the present utility model. Figure 2 ;

[0024] Figure 8 This is a schematic diagram of the cover plate in an embodiment of the present utility model. Figure 2 .

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Fan cover; 101. Receiving section; 200. Head unit; 201. Receiving cavity; 202. Cover plate; 2021. Through opening; 203. Shell body; 2031. Mounting port; 2032. Opening; 300. Locking assembly; 301. Pull rod; 302. Elastic element; 303. Wrench; 400. Slide structure; 500. Guide device; 501. Guide channel. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0028] In the attached diagram, the Z-axis represents the vertical direction, i.e., up and down, with the positive direction of the Z-axis representing up and the negative direction representing down. The X-axis represents the horizontal direction and is designated as the front and back position, with the positive direction of the X-axis representing the front and the negative direction representing the back. The Y-axis represents the left and right position, with the positive direction of the Y-axis representing the left and the negative direction representing the right. It should be noted that the aforementioned representations of the Z, Y, and X axes are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this application, it should be understood that the terms "height", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] The fan device of this utility model embodiment includes a fan cover 100, a motor head 200, and a locking component 300; the fan cover 100 and the motor head 200 are adapted to rotate relative to each other; one of the fan cover 100 and the motor head 200 is provided with a receiving portion 101; the other of the fan cover 100 and the motor head 200 is equipped with a locking component 300; the locking component 300 includes a pull rod 301 and an elastic element 302; the pull rod 301 is slidably connected to the fan cover 100 or the motor head 200; the elastic element 302 is in contact with the pull rod 301; when the pull rod 301 is located in the receiving portion 101, the pull rod 301 restricts the relative rotation of the fan cover 100 and the motor head 200; when the pull rod 301 is removed from the receiving portion 101, the pull rod 301 is adapted to compress the elastic element 302.

[0031] Specifically, such as Figures 1 to 4As shown, the shroud 100 is provided with a receiving portion 101, and the head unit 200 is equipped with a locking assembly 300; wherein, the receiving portion 101 has a hole structure; the locking assembly 300 includes a pull rod 301 and an elastic element 302; the pull rod 301 is slidably connected to the head unit 200; the elastic element 302 is in contact with the pull rod 301 along the sliding direction of the pull rod 301 (that is, the direction of the X-axis); when the pull rod 301 is located in the receiving portion 101, the elastic element 302 can be in an uncompressed state or a semi-compressed state to prevent the pull rod 301 from exiting the receiving portion 101, thereby restricting the relative rotation between the shroud 100 and the head unit 200; when the pull rod 301 exits the receiving portion 101, the pull rod 301 compresses the elastic element 302, and the elastic element 302 can accumulate elastic potential energy.

[0032] In this embodiment, when it is necessary to rotate the shroud 100 and the head 200 relative to each other, the operator can apply force to the pull rod 301 so that the pull rod 301 exits the receiving part 101 and compresses the elastic element 302. At this time, the shroud 100 and the head 200 can rotate relative to each other smoothly, which facilitates the installation and removal of the shroud 100. When the pull rod 301 is aligned with the receiving part 101, the operator can release the force applied to the pull rod 301, and the elastic element 302 resets to drive the pull rod 301 to extend into the receiving part 101. The elastic effect of the elastic element 302 can make the pull rod 301 stably held in the receiving part 101. This stable holding state allows the pull rod 301 to firmly restrict the relative rotation of the shroud 100 and the head 200. Even when the fan vibrates during operation, the elasticity of the elastic element 302 can effectively buffer the impact of vibration on the position of the pull rod 301, ensuring that the pull rod 301 will not easily detach from the receiving part 101, thereby effectively avoiding loosening caused by vibration.

[0033] In other embodiments, the head unit 200 is provided with a receiving portion 101, and the fan shroud 100 is equipped with a locking component 300. No limitation is made here; it depends on the actual needs.

[0034] Optionally, one of the shroud 100 and the head unit 200 is provided with a screw groove, and the other of the shroud 100 and the head unit 200 is provided with a locking block; when the shroud 100 and the head unit 200 rotate relative to each other, the locking block is adapted to enter or exit the screw groove.

[0035] It should be noted that, in order to facilitate the smooth entry of the locking block into the rotary groove, the rotary groove has a clearance opening that communicates with the inlet of the rotary groove to avoid the locking block; or, the locking block has a clearance groove to avoid the inner wall of the rotary groove.

[0036] In this optional embodiment, the engagement of the rotary groove and the locking block allows the fan cover 100 and the head 200 to quickly engage or disengage during relative rotation. This design enables the fan cover 100 to be quickly disassembled, allowing users to easily install and remove it without tools.

[0037] Optionally, the sliding direction of the pull rod 301 is perpendicular to the relative rotation plane of the shroud 100 and the head 200.

[0038] Specifically, such as Figure 2 As shown, the sliding direction of the pull rod 301 is the direction of the X-axis; the relative rotation plane of the shroud 100 and the head 200 is the plane of YZ; that is, the sliding direction of the pull rod 301 is perpendicular to the relative rotation plane of the shroud 100 and the head 200.

[0039] In this optional embodiment, when the pull rod 301 enters the receiving part 101, the vertical sliding direction ensures that the pull rod 301 can quickly and accurately reach the designated position, thereby firmly restricting the relative rotation between the fan cover 100 and the machine head 200, effectively avoiding loosening caused by vibration. At the same time, when it is necessary to perform relative rotation operations on the fan cover 100 and the machine head 200, the pull rod 301 can smoothly exit the receiving part 101 without jamming or uneven force, ensuring the convenience of installing and removing the fan cover 100.

[0040] Optionally, the fan device further includes a slide structure 400, which is disposed on the fan cover 100 or the head 200. The end of the pull rod 301 away from the receiving part 101 is slidably disposed on the slide structure 400. The elastic element 302 is located inside the slide structure 400 and abuts against the pull rod 301 along the sliding direction of the pull rod 301.

[0041] Specifically, such as Figure 5 As shown, the slide structure 400 is located inside the machine head 200, and the rear end of the pull rod 301 is slidably located in the slide structure 400; the elastic element 302 is a spring or an elastic rubber element, which is located inside the slide structure 400, and the elastic element 302 abuts against the pull rod 301 along the X-axis direction.

[0042] In this optional embodiment, the fan device provides a clear and stable path for the pull rod 301 to slide on the fan cover 100 or the head 200 by setting a slide structure 400. The presence of the slide structure 400 allows the pull rod 301 to slide smoothly in a predetermined direction, ensuring the accuracy and smoothness of the pull rod 301 when entering and exiting the receiving part 101. At the same time, the elastic element 302 is located within the slide structure 400 and abuts against the pull rod along the sliding direction of the pull rod 301. This design not only allows the elastic element 302 to apply elastic force more evenly and effectively, but also further enhances the stability of the pull rod 301 in the receiving part 101. When the pull rod 301 enters the receiving part 101, the elastic force of the elastic element 302 ensures that the pull rod 301 is firmly locked in the receiving part 101, preventing loosening due to vibration; and when it is necessary to unlock, the operator can pull the pull rod 301 to overcome the elastic force of the elastic element 302, allowing the pull rod 301 to smoothly exit the receiving part 101.

[0043] Optionally, the fan device further includes a guide device 500, which is disposed on the fan cover 100 or the head 200. The guide device 500 has a through guide channel 501, and one end of the pull rod 301 that extends into the receiving part 101 passes through the guide channel 501.

[0044] Specifically, such as Figure 6 As shown, the guide device 500 is located on the machine head 200. It has a columnar structure and a through guide channel 501 along the X-axis. The front end of the pull rod 301 passes through the guide channel 501, and the part of the pull rod 301 that passes through the guide channel 501 fits into the inner wall of the guide channel 501.

[0045] In this optional embodiment, the guide channel 501 provides a fixed sliding path for the pull rod 301, ensuring that the pull rod 301 will not deviate or get stuck when entering and exiting the receiving part 101, thereby improving the reliability and convenience of operation. In other words, the presence of the guide device 500 enhances the stability of the movement of the pull rod 301.

[0046] Optionally, the machine head 200 has a receiving cavity 201 inside; when the machine head 200 is equipped with a locking component 300, one end of the slide structure 400, the guide device 500, the elastic element 302 and the pull rod 301 are all located in the receiving cavity 201, and the other end of the pull rod 301 extends to the outside of the machine head 200.

[0047] Specifically, such as Figure 2 , 3As shown, the machine head 200 has a receiving cavity 201 inside, wherein the guide device 500 is disposed in the front section of the receiving cavity 201, the slide structure 400 is disposed in the rear section of the receiving cavity 201, the rear end of the pull rod 301 and the elastic element 302 are located in the slide structure 400; the other end of the pull rod 301 extends to the outside of the machine head 200 for cooperating with the receiving part 101.

[0048] In this optional embodiment, key components such as the slide structure 400, guide device 500, and elastic element 302 are concentrated in the receiving cavity 201, which not only effectively protects these components and reduces the risk of collisions, but also effectively reduces the probability of dust entering the guide device 500 and slide structure 400, ensuring the smoothness and accuracy of the pull rod 301 during the sliding process.

[0049] Optionally, the head unit 200 includes a cover plate 202 and a housing body 203; the housing body 203 is provided with an installation port 2031, the cover plate 202 is detachably installed at the installation port 2031, and the cover plate 202 is provided with a through opening 2021; a guide device 500 is provided on the cover plate 202, and the through opening 2021 is connected to the guide channel 501; and a slide structure 400 is provided inside the housing body 203.

[0050] Specifically, the nose section 200 comprises two parts, such as... Figure 7 As shown, its shell body 203 is similar to a rectangle and has a mounting port 2031 at the front end; the slide structure 400 is located inside the shell body 203 at a rear position; the cover plate 202 is detachably installed at the mounting port 2031, and the connection between the two is including but not limited to snap-fit ​​or screw connection; as Figure 8 As shown, the cover plate 202 has a through opening 2021 along the X-axis; the guide device 500 is disposed on the rear end face of the cover plate 202, and the guide channel 501 is connected to the through opening 2021.

[0051] In this optional embodiment, when installing the locking assembly 300, the slide structure 400 and the housing body 203 are integrated as a whole, and the guide device 500 and the cover plate 202 are integrated as a whole. First, components such as the pull rod 301 and the elastic element 302 are installed into the slide structure 400. Then, the cover plate 202 with the guide device 500 is installed into the mounting port 2031 of the housing body 203, and the pull rod 301 is passed through the guide channel 501 and the through hole 2021 in sequence, thereby completing the quick installation and removal of the locking assembly 300.

[0052] Optionally, the locking assembly 300 also includes a wrench 303 connected to the lever 301.

[0053] Specifically, the wrench 303 can be installed on the outer wall or the tail of the lever 301, and the connection method between the two includes, but is not limited to, adhesive bonding, snap-fitting, or screw connection. There are no restrictions here, and it depends on the actual needs.

[0054] In this embodiment, the wrench 303 provides a larger operating area and a more comfortable grip, allowing the operator to apply greater force when pulling or pushing the lever 301, thereby making it easier to complete the locking and unlocking operations. Furthermore, the wrench 303 can also protect the lever 301 to some extent, avoiding damage that may result from directly applying force to the lever 301 and extending its service life.

[0055] Optionally, the outer wall of the machine head 200 is provided with an opening 2032 that communicates with the receiving cavity 201. The opening 2032 extends along the sliding direction of the pull rod 301. One end of the wrench 303 is connected to the pull rod 301 through the opening 2032, and the other end extends out of the opening 2032. The wrench 303 is configured to move along the extending direction of the opening 2032 when force is applied.

[0056] Specifically, such as Figure 7 As shown, the rear section of the outer wall of the machine head 200 is provided with an opening 2032 that communicates with the receiving cavity 201. The opening 2032 extends along the X-axis and is generally a waist-shaped hole or an elongated hole. The right end of the wrench 303 is connected to the pull rod 301 through the opening 2032, and the left end of the wrench 303 extends out of the opening 2032 to be located outside the machine head 200. When the wrench 303 is subjected to a rearward force, the wrench 303 can move along the extension direction of the opening 2032.

[0057] In this optional embodiment, when the lever 301 is located inside the machine head 200, the operator can drive the lever 301 to move by using an external wrench 303 without directly contacting the lever 301 itself, thereby reducing the difficulty of operation.

[0058] Optionally, one of the lever 301 and the wrench 303 is provided with a slot, and the other of the lever 301 and the wrench 303 is provided with a buckle, which is engaged in the slot.

[0059] Specifically, the pull rod 301 is provided with a slot, and the wrench 303 is provided with a buckle that cooperates with the slot. After the pull rod 301 is assembled into the machine head 200, the opening 2032 on the outer wall of the machine head 200 exposes the slot. The buckle on the wrench 303 is engaged in the slot through the opening 2032 to realize the connection between the wrench 303 and the pull rod 301.

[0060] In this optional embodiment, during operation, the wrench 303 can be securely fixed to the pull rod 301 through the engagement of the snap and the slot, ensuring that the wrench 303 and the pull rod 301 will not slip or disengage when the pull rod 301 is pulled or pushed, thereby improving the reliability and safety of operation. At the same time, this snap-fit ​​method facilitates installation and disassembly, allowing operators to easily connect or disconnect the wrench 303 from the pull rod 301, further enhancing ease of use.

[0061] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A fan device, characterized in that, It includes a fan shroud (100), a head unit (200), and a locking assembly (300); the fan shroud (100) and the head unit (200) are adapted to rotate relative to each other; one of the fan shroud (100) and the head unit (200) is provided with a receiving portion (101); the other of the fan shroud (100) and the head unit (200) is equipped with the locking assembly (300); the locking assembly (300) includes a pull rod (301) and an elastic element (302); the... The pull rod (301) is slidably connected to the shroud (100) or the head (200); the elastic element (302) is in contact with the pull rod (301); when the pull rod (301) is located in the receiving part (101), the pull rod (301) restricts the relative rotation of the shroud (100) and the head (200); when the pull rod (301) is removed from the receiving part (101), the pull rod (301) is adapted to compress the elastic element (302).

2. The fan device according to claim 1, characterized in that, The sliding direction of the pull rod (301) is perpendicular to the relative rotation plane of the wind shield (100) and the machine head (200).

3. The fan device according to claim 1, characterized in that, It also includes a slide structure (400), which is disposed on the wind cover (100) or the head (200). The end of the pull rod (301) away from the receiving part (101) is slidably disposed on the slide structure (400). The elastic element (302) is located in the slide structure (400) and abuts against the pull rod (301) along the sliding direction of the pull rod (301).

4. The fan device according to claim 3, characterized in that, It also includes a guide device (500), which is disposed on the wind shield (100) or the head (200). The guide device (500) has a through guide channel (501), and one end of the pull rod (301) extending into the receiving part (101) passes through the guide channel (501).

5. The fan device according to claim 4, characterized in that, The machine head (200) has a receiving cavity (201) inside; when the machine head (200) is equipped with the locking assembly (300), one end of the slide structure (400), the guide device (500), the elastic element (302) and the pull rod (301) are all located in the receiving cavity (201), and the other end of the pull rod (301) extends to the outside of the machine head (200).

6. The fan device according to claim 5, characterized in that, The machine head (200) includes a cover plate (202) and a shell body (203); the shell body (203) is provided with an installation port (2031), the cover plate (202) is detachably installed at the installation port (2031), and the cover plate (202) is provided with a through opening (2021); the guide device (500) is disposed on the cover plate (202), and the through opening (2021) is connected to the guide channel (501); the slide structure (400) is disposed inside the shell body (203).

7. The fan device according to claim 5, characterized in that, The locking assembly (300) also includes a wrench (303) connected to the lever (301).

8. The fan device according to claim 7, characterized in that, The outer wall of the machine head (200) is provided with an opening (2032) communicating with the receiving cavity (201). The opening (2032) extends along the sliding direction of the pull rod (301). One end of the wrench (303) is connected to the pull rod (301) through the opening (2032), and the other end extends out of the opening (2032). The wrench (303) is configured to move along the extending direction of the opening (2032) when force is applied.

9. The fan device according to claim 8, characterized in that, One of the pull rod (301) and the wrench (303) is provided with a slot, and the other of the pull rod (301) and the wrench (303) is provided with a buckle, which is engaged in the slot.

10. The fan device according to claim 9, characterized in that, One of the wind shield (100) and the machine head (200) is provided with a screw groove, and the other of the wind shield (100) and the machine head (200) is provided with a locking block; when the wind shield (100) and the machine head (200) rotate relative to each other, the locking block is adapted to enter or exit the screw groove.

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