Detachable structure of fan back net

Abstract

The utility model discloses a detachable structure of fan rear net, including mutually pasting and connecting's rear net and motor casing, and the one end of motor casing forms first connecting area, and the center of rear net corresponds first connecting area and forms second connecting area, and motor casing and rear net are respectively in first, second connecting area and are provided with first clamping groove and first buckle, and first clamping groove and first buckle can mutually cooperate and connect, the one end of motor casing away from first connecting area forms third connecting area, and the part edge of rear net corresponds third connecting area and forms fourth connecting area, and motor casing and rear net are respectively provided with first rotation -stopping structure and second rotation -stopping structure in third, fourth connecting area, and after first clamping groove and first buckle are connected, first rotation -stopping structure and second rotation -stopping structure can mutually abut and limit position. The utility model technical scheme aims at making rear net and motor casing connect stable, convenient to dismantle, integral volume smaller, more cost -effective.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a detachable fan rear grille structure. Background Technology

[0002] Currently, the home fan market offers a wide variety of products in various forms. Regarding the method of fixing the rear grille, there are two designs: non-removable and removable. While non-removable structures are cheaper, they completely sacrifice user experience and cause significant inconvenience for users in cleaning and maintenance. The mainstream removable solution on the market generally uses a component called a mesh ring, or threaded tightening ring, to lock the rear grille to the front housing of the motor by rotating and tightening. This structure has obvious drawbacks: the external mesh ring itself has a certain width, resulting in a less compact overall structure and a somewhat bulky appearance; because it is a single-point threaded locking mechanism relying on the elastic deformation of the metal ring, the locking force is limited and unevenly distributed. When the fan runs at different speeds for extended periods, the rear grille is prone to shaking and abnormal noise, and disassembly is cumbersome, time-consuming, and labor-intensive. Utility Model Content

[0003] The main purpose of this utility model is to provide a detachable fan rear grille structure, which aims to make the connection between the rear grille and the motor housing stable, easy to disassemble, smaller in overall size, and more cost-effective.

[0004] To achieve the above objectives, this utility model proposes a detachable fan rear grille structure, including a rear grille and a motor housing that are fitted together. One end of the motor housing forms a first connection area, and the center of the rear grille forms a second connection area corresponding to the first connection area. The motor housing and the rear grille are respectively provided with a first slot and a first buckle in the first and second connection areas, and the first slot and the first buckle can cooperate with each other to connect.

[0005] A third connection area is formed at the end of the motor housing away from the first connection area, and a fourth connection area is formed at a portion of the edge of the rear mesh corresponding to the third connection area. The motor housing and the rear mesh are respectively provided with a first anti-rotation structure and a second anti-rotation structure in the third and fourth connection areas. After the first slot and the first buckle are connected, the first anti-rotation structure and the second anti-rotation structure can abut against each other and limit their movement.

[0006] In one possible implementation, the edges of the third and fourth connecting regions are respectively provided with a second slot and a second buckle, which can be connected to each other.

[0007] In one possible implementation, a protrusion is formed on one side edge of the first and second buckles, and a groove is formed in the first and second slots corresponding to the protrusion. The first and second buckles can slide in the first and second slots to allow the protrusion to be embedded in the groove.

[0008] In one possible implementation, one end of the second anti-rotation structure is connected to the fourth connection area, and the other end is a movable end with an abutment portion formed at the end. When the protrusion portion is embedded in the groove portion, the abutment portion abuts against the first anti-rotation structure. Moving the movable end of the second anti-rotation structure can cause the abutment portion to disengage from the first anti-rotation structure.

[0009] In one possible implementation, the motor housing also has an operating port in the third connection area, and the first and second anti-rotation structures are located within the operating port.

[0010] This utility model's technical solution employs a double-buckle locking mechanism at the center and edges, ensuring stable connection and effectively resisting vibration and torque during operation to prevent loosening. Simultaneously, the anti-rotation structure allows for tool-free disassembly of the rear net; a simple flick of the finger unlocks it, achieving highly user-friendly operation. Furthermore, the entire structure achieves connection and locking entirely through the design of its components, eliminating the need for additional screws, springs, and other fasteners, significantly simplifying the mold and assembly process, thereby substantially reducing production costs. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of one embodiment of the motor housing of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of one embodiment of the rear mesh of this utility model;

[0014] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0015] Figure 4 This is a schematic diagram of the locked state structure of an embodiment of the detachable fan rear grille structure of this utility model;

[0016] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0017] Figure 6 This is a schematic diagram of the unlocked state structure of an embodiment of the detachable fan rear grille structure of this utility model;

[0018] Figure 7 for Figure 6 A magnified view of a section at point C.

[0019] Explanation of icon numbers:

[0020] 1. Motor housing; 11. First connecting area; 12. Third connecting area; 13. Operating port; 2. Rear mesh; 21. Second connecting area; 22. Fourth connecting area; 31. First slot; 32. First buckle; 33. Protrusion; 34. Groove; 41. First anti-rotation structure; 42. Second anti-rotation structure; 43. Abutment; 51. Second slot; 52. Second buckle.

[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0023] Reference Figures 1 to 7 This utility model proposes a detachable structure for a fan rear grille 2, including a rear grille 2 and a motor housing 1 that are fitted together. One end of the motor housing 1 forms a first connecting area 11, and the center of the rear grille 2 forms a second connecting area 21 corresponding to the first connecting area 11. The motor housing 1 and the rear grille 2 are respectively provided with a first slot 31 and a first buckle 32 in the first and second connecting areas 21, respectively. The first slot 31 and the first buckle 32 can be connected to each other. The end of the motor housing 1 away from the first connecting area 11 forms a third connecting area 12, and a part of the edge of the rear grille 2 forms a fourth connecting area 22 corresponding to the third connecting area 12. The motor housing 1 and the rear grille 2 are respectively provided with a first anti-rotation structure 41 and a second anti-rotation structure 42 in the third and fourth connecting areas 22. After the first slot 31 and the first buckle 32 are connected, the first anti-rotation structure 41 and the second anti-rotation structure 42 can abut against each other and limit their movement.

[0024] Understandably, the central connecting portion is responsible for the main connection and fixation, including the first connecting area 11 on the motor housing 1 and the second connecting area 21 at the center of the rear net 2. A first recessed groove 31 is provided on the inner periphery of the first connecting area 11 of the motor housing 1, and a first snap fastener 32 is provided on the inner periphery of the second connecting area 21 of the rear net 2. During installation, the center of the rear net 2 is aligned with the motor housing 1, so that the first snap fastener 32 is inserted into the first groove 31, achieving the main connection between the rear net 2 and the motor housing 1 at the center position.

[0025] The edge locking section is responsible for preventing rotation and secondary fixation, including the third connecting area 12 on the edge of the motor housing 1 and the fourth connecting area 22 on the edge of the rear mesh 2. A first anti-rotation structure 41 is provided in the third connecting area 12, and a second anti-rotation structure 42 is provided in the fourth connecting area 22. The anti-rotation structures can be components that can interlock to prevent relative rotation, such as ribs and grooves, toothed structures, etc.

[0026] When the rear net 2 is rotated so that the first buckle 32 and the first slot 31 at the center are engaged, the first anti-rotation structure 41 and the second anti-rotation structure 42 at the edge come into contact with each other and abut against each other. This action not only locks the rear net 2, preventing it from rotating off due to vibration, but also provides an additional fixing point.

[0027] Reference Figures 1 to 2 In one embodiment of this utility model, the edges of the third connecting area 12 and the fourth connecting area 22 are respectively provided with a second slot 51 and a second buckle 52, and the second slot 51 and the second buckle 52 can cooperate with each other to connect.

[0028] Understandably, the third and fourth connection areas 22 are also provided with a second slot 51 and a second buckle 52. When the user holds the rear net 2 and rotates it in one direction, the second buckle 52 on the edge engages with the second slot 51 on the edge as the rotation occurs, and together with the center buckle, firmly locks the rear net 2 onto the motor housing 1 to prevent loosening and abnormal noise.

[0029] Reference Figures 1 to 3 In one embodiment of the present invention, a protrusion 33 is formed on one side edge of the first and second buckles 52, and a groove 34 is formed in the first and second slots 51 corresponding to the protrusion 33. The first and second buckles 52 can slide in the first and second slots 51 to allow the protrusion 33 to be embedded in the groove 34.

[0030] Understandably, the first and second buckles 52 are not simply protrusions, but sliders with bumps; the first and second slots 51 are not simple grooves, but tracks with recesses. The bump portion 33 is located on the side of the first buckle 32 and the second buckle 52, and the recess portion 34 is located inside the first slot 31 and the second slot 51, with its position precisely corresponding to the bump portion 33. When the back net 2 is first placed on, and the buckle enters the slot but has not yet rotated to its full position, the bump portion 33 slides on the smooth track of the slot. When the user rotates the back net 2, and the buckle slides to a specific position in the slot, the bump portion 33 will engage with the recess portion 34.

[0031] Reference Figures 4 to 7 In one embodiment of the present invention, one end of the second anti-rotation structure 42 is connected to the fourth connection area 22, and the other end is a movable end with an abutment portion 43 formed at the end. When the protrusion portion 33 is embedded in the groove portion 34, the abutment portion 43 abuts against the first anti-rotation structure 41. Moving the movable end of the second anti-rotation structure 42 can cause the abutment portion 43 to disengage from the first anti-rotation structure 41.

[0032] Understandably, the second anti-rotation structure 42 is actually a lever, with one end connected to the fourth connection area 22 as a fulcrum, and the other end free and can be manually moved as a point of force application. The abutment part 43 is the part at the movable end that contacts the first anti-rotation structure 41.

[0033] First, align the rear mesh 2 with the motor housing 1. The central first buckle 32 falls into the first slot 31. Rotate the rear mesh 2, and the buckle slides within the slot. Simultaneously, the movable end of the second anti-rotation structure 42 moves close to the first anti-rotation structure 41. When rotated to the correct position, the protrusion 33 engages with the groove 34. At the same time, the abutting part 43 of the lever of the second anti-rotation structure 42 also moves away from the first anti-rotation structure 41, and the movable end springs upward, causing the abutting part 43 to firmly press against the first anti-rotation structure 41.

[0034] During the unlocking process, the user locates and moves the movable end of the second anti-rotation structure 42. This displacement causes the abutment part 43 to separate from the first anti-rotation structure 41, releasing the rotational constraint on the rear net 2. At this time, the user only needs to gently rotate the rear net 2 in the opposite direction, and the movable end will be in close contact with the first anti-rotation structure 41. At the same time, the protrusion part 33 can easily slide out from the groove part 34, thereby removing the rear net 2.

[0035] Reference Figure 1 In one embodiment of the present invention, the motor housing 1 is further provided with an operation port 13 in the third connection area 12, and the first and second anti-rotation structures 42 are located in the operation port 13.

[0036] Understandably, the operating port 13 is located in the third connection area 12 of the motor housing 1. After assembly, the first anti-rotation structure 41 and the second anti-rotation structure 42 are both located within the internal space of this operating port 13. As a distinct physical feature, the operating port 13 directly guides the user to the correct operating position. This opening is specifically designed for finger contact, ensuring that the user can apply the lever force in the most direct way, thus improving the convenience and comfort of operation.

[0037] This utility model's technical solution employs a double-buckle locking mechanism at the center and edges, ensuring stable connection and effectively resisting vibration and torque during operation to prevent loosening. Simultaneously, the anti-rotation structure allows for easy unlocking of the rear net 2 without tools, requiring only a single finger to operate, achieving highly user-friendly operation. Furthermore, the entire structure achieves connection and locking entirely through the design of its components, eliminating the need for additional screws, springs, and other fasteners, significantly simplifying the mold and assembly process, thereby substantially reducing production costs.

[0038] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0039] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A detachable fan rear grille structure, characterized in that, The device includes a motor housing and a rear mesh that are fitted together. One end of the motor housing forms a first connection area, and the center of the rear mesh forms a second connection area corresponding to the first connection area. The motor housing and the rear mesh are respectively provided with a first slot and a first buckle in the first and second connection areas, and the first slot and the first buckle can be connected to each other. A third connection area is formed at the end of the motor housing away from the first connection area, and a fourth connection area is formed at a portion of the edge of the rear mesh corresponding to the third connection area. The motor housing and the rear mesh are respectively provided with a first anti-rotation structure and a second anti-rotation structure in the third and fourth connection areas. After the first slot and the first buckle are connected, the first anti-rotation structure and the second anti-rotation structure can abut against each other and limit their movement.

2. The detachable fan rear grille structure according to claim 1, characterized in that, The edges of the third and fourth connecting areas are respectively provided with a second slot and a second buckle, which can be connected to each other.

3. The detachable fan rear grille structure according to claim 2, characterized in that, One side edge of the first and second buckles forms a protrusion, and the first and second slots have corresponding grooves. The first and second buckles can slide in the first and second slots to allow the protrusion to be embedded in the groove.

4. The detachable fan rear grille structure according to claim 3, characterized in that, One end of the second anti-rotation structure is connected to the fourth connection area, and the other end is a movable end with an abutment portion formed at the end. When the protrusion portion is embedded in the groove portion, the abutment portion abuts against the first anti-rotation structure. Moving the movable end of the second anti-rotation structure can cause the abutment portion to disengage from the first anti-rotation structure.

5. The detachable fan rear grille structure according to claim 4, characterized in that, The motor housing also has an operating port in the third connection area, and the first and second anti-rotation structures are located inside the operating port.

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