Quick disassembly and assembly structure of fan mesh enclosure

Abstract

The utility model relates to a quick disassembly and assembly structure of a fan mesh enclosure, which comprises a fan motor seat body, a fan rear mesh enclosure is clamped on the fan motor seat body through a first rotary clamping structure, a second rotary clamping structure, a first limiting structure and a first clamping structure, and a through hole is formed in the middle of the fan rear mesh enclosure. An inner ring and an outer ring located on the periphery of the inner ring are arranged on the face, facing the fan motor base, of the fan rear mesh enclosure, a mounting cavity is formed between the inner ring and the outer ring, and the inner ring is arranged on the periphery of the through hole. According to the scheme, the fan motor base body and the fan rear mesh enclosure are quickly disassembled and assembled through the first rotary clamping structure, the second rotary clamping structure, the first limiting structure and the first clamping structure. Through the combined action of the structures, it is ensured that the fan rear mesh enclosure can be stably installed on the fan motor base body, and a user can disassemble or assemble the fan rear mesh enclosure and the fan motor base body only through simple rotating actions without the help of tools.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric fan, concretely relates to a quick dismounting structure of fan mesh enclosure. BACKGROUND

[0002] In the traditional fan design, the fan rear mesh enclosure and the motor seat body usually adopt two main connection methods: one is to fix them together through multiple independent connecting pieces; the other is to use a threaded connection method, that is, to fasten the fan rear mesh enclosure and the motor seat body through screws. Although these two methods can ensure the safety and stability of the connection, they also have obvious shortcomings.

[0003] Among them, the method of using multiple independent connecting pieces such as fixing plates, hooks, etc. for fixing, although it can provide good stability, but it needs to operate each connecting piece one by one during installation or disassembly, which not only increases the time cost of assembly, but also easily causes the whole device to malfunction due to the damage or loss of single parts.

[0004] Although the screw connection method provides strong fixing force, this connection method requires the user to use tools to tighten or loosen the screws every time when disassembling or assembling, which undoubtedly increases the complexity of operation, and long-term repeated use may cause thread wear, thereby affecting the connection quality. In addition, the use of screws and other auxiliary parts also increases the manufacturing cost and weight of the product.

[0005] In summary, the connection between the fan rear mesh enclosure and the motor seat body in the prior art has the defects of inconvenient disassembly, low efficiency, and increased material cost.

[0006] In view of these problems in the prior art, there is an urgent need in the market for a more convenient and efficient connection solution between the fan rear mesh enclosure and the motor seat body. The ideal solution should be able to simplify the disassembly process, reduce the number of required parts, while ensuring sufficient stability and safety. Therefore, developing a design that can realize the quick disassembly of the fan rear mesh enclosure and the motor seat body without the aid of external tools has become an important issue to be solved in the industry. UTILITY MODEL CONTENTS

[0007] The utility model overcomes the above technical deficiencies, and provides a quick dismounting structure of fan mesh enclosure

[0008] To achieve the above purpose, the utility model adopts the following technical solutions:

[0009] The application discloses a quick dismounting structure of a fan net cover.

[0010] Further, the first rotating clamping structure comprises first protrusions arranged on the fan motor seat body, and first clamping grooves arranged in the mounting cavity and matched with the first protrusions; the first protrusions are protruded towards the fan rear net cover; at least two first protrusions are equidistantly arranged along the circumference of the fan motor seat body; the first protrusions are clamped into the first clamping grooves and are fixed in position by rotating the fan rear net cover relative to the fan motor seat body; one of the first protrusions comprises a positioning pin, and one of the first clamping grooves comprises a strip-shaped groove for clamping the positioning pin and allowing the positioning pin to move in the strip-shaped groove.

[0011] Further, the second rotating clamping structure comprises second protrusions arranged on the fan motor seat body, and second clamping grooves arranged in the mounting cavity and matched with the second protrusions; the second protrusions are protruded towards the fan rear net cover; at least two second protrusions are equidistantly arranged along the circumference of the fan motor seat body; the second protrusions are clamped into the second clamping grooves and are fixed in position by rotating the fan rear net cover relative to the fan motor seat body.

[0012] Further, the second clamping grooves are provided with deformable guide pieces, the second protrusions are in the shape of slopes, and one end of each guide piece is fixedly connected to the fan rear net cover and the other end is a free end; when the fan rear net cover is rotated relative to the fan motor seat body, the second protrusions are clamped into the second clamping grooves by pushing the guide pieces apart and are fixed in position.

[0013] Further, the first limiting structure comprises limiting protrusions which are equidistantly arranged on the middle part of the fan motor seat body; when the fan rear net cover is clamped to the fan motor seat body, the limiting protrusions are inserted into the through hole and tightly abut against the inner wall of the inner ring.

[0014] Further, the first clamping structure comprises elastic clamping blocks which are equidistantly arranged on the circumferential side wall of the fan motor seat body; when the fan rear net cover is clamped to the fan motor seat body, the elastic clamping blocks are clamped into and tightly pressed against the inner wall of the outer ring.

[0015] Further, the fan rear net cover is clamped to the fan front net cover through a third rotating clamping structure; the fan rear net cover comprises an annular connecting part; and the inner side of the fan front net cover is provided with an annular groove for inserting the annular connecting part.

[0016] Further, the third rotating clamping structure comprises a third protrusion arranged on the inner wall surface of the annular connecting portion in a circumferential direction, and a third clamping groove arranged on the inner wall surface of the annular groove and used for clamping the third protrusion, and rotating the front fan cover relative to the rear fan cover can make the third protrusion clamped into the third clamping groove and be limited and fixed.

[0017] Further, the third protrusion is arranged equidistantly at least two, and the third clamping groove comprises a bevel end and a parallel end; when the front fan cover is rotated relative to the rear fan cover, the third protrusion is clamped into the third clamping groove along the bevel end and the rotation of the front fan cover is limited by the parallel end.

[0018] Further, the outer wall surface of the front fan cover and / or the rear fan cover is provided with an arrow indicating mark and a rotation locking and unlocking mark.

[0019] Compared with the prior art, the fan motor seat body and the rear fan cover are quickly disassembled and assembled through the first rotating clamping structure, the second rotating clamping structure, the first limiting structure and the first clamping structure.

[0020] The fan motor seat body and the rear fan cover are quickly disassembled and assembled through the first rotating clamping structure, the second rotating clamping structure, the first limiting structure and the first clamping structure. Through the cooperation of the above structures, it is ensured that the rear fan cover can be stably mounted on the fan motor seat body, and the user can complete the disassembly or assembly of the two only by a simple rotating action without the aid of tools. When all the technical features are combined together, the application provides a high-efficiency and simple quick disassembly and assembly structure between the rear fan cover and the fan motor seat body. The user can complete the disassembly and assembly between the rear fan cover and the fan motor seat body only by a simple rotating operation without additional tools or complex steps, which greatly facilitates daily disassembly, maintenance and cleaning work. In addition, since the traditional screws and other connecting parts are removed, not only the manufacturing cost is reduced, but also the total weight of the product is reduced, which is conducive to transportation and use. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a component exploded view of the overall structure of the case.

[0022] Figure 2 is a structure schematic view of the fan motor seat body of the case.

[0023] Figure 3 is a structure schematic view of the rear fan cover of the case.

[0024] Figure 4 is the case Figure 3 is an enlarged view of A in the case.

[0025] Figure 5 is a structure schematic view of the fan motor seat body and the rear fan cover of the case after assembly.

[0026] Figure 6 is the case Figure 5 enlarged view of B in the case.

[0027] Figure 7 is one of the structure schematic views of the assembled fan motor base body, fan rear mesh cover and fan front mesh cover of the case.

[0028] Figure 8 is Figure 7 the sectional view of A-A direction in the case.

[0029] Figure 9 is the enlarged view of C in the case Figure 8

[0030] Figure 10 is the second structure schematic view of the assembled fan motor base body, fan rear mesh cover and fan front mesh cover of the case.

[0031] Figure 11 is the enlarged view of D in the case Figure 10 DETAILED DESCRIPTION

[0032] The features of the present application and other related features are further described in detail below by way of examples, so as to facilitate the understanding of the skilled in the art:

[0033] As Figures 1 to 11 ​​As shown, the present application discloses a quick disassembly and assembly structure of a fan mesh cover, which comprises a fan motor seat body 1, and a fan rear mesh cover 2 is connected to the fan motor seat body 1 through a first rotating clamping structure, a second rotating clamping structure, a first limiting structure, and a first clamping structure. The first rotating clamping structure is responsible for guiding the fan rear mesh cover 2 to preliminarily position relative to the fan motor seat body 1, and through rotation, the two parts are tightly attached. It simplifies the assembly process, reduces the demand for tools, and improves work efficiency. The second rotating clamping structure serves as an auxiliary first rotating clamping structure, and the two parts are synchronized to provide additional safety and stability. The second clamping structure can further lock the fan rear mesh cover 2 to prevent accidental loosening, thereby enhancing the reliability of the entire system. The first limiting structure realizes quick positioning and limiting of the fan rear mesh cover 2 and the fan motor seat body 1 during installation through a through hole 21. The first limiting structure ensures that the fan rear mesh cover 2 can be accurately and correctly docked with the fan motor seat body 1 during initial installation, avoiding installation failure or instability due to positional deviation. The first clamping structure also plays a role in quick positioning and limiting. The first clamping structure not only helps users intuitively feel the correct installation position during installation, but also automatically locks the fan rear mesh cover 2 and the fan motor seat body 1, thereby ensuring a stable connection between the two and simplifying the user's operation steps. The fan rear mesh cover 2 has a through hole 21 in the middle, and the through hole 21 is used to accommodate the fan blade shaft or other central components, allowing them to pass through the through hole into the fan rear mesh cover 2. The side of the fan rear mesh cover 2 facing the fan motor seat body 1 is provided with an inner ring 22 and an outer ring 23 located outside the inner ring 22, and an installation cavity 200 is formed between the inner ring 22 and the outer ring 23. The inner ring 22 is located outside the through hole 21. The inner ring 22 surrounds the through hole 21, while the outer ring 23 is located outside the inner ring 22, and the installation cavity 200 formed between the two provides space for internal components. The installation cavity 200 is the annular area between the inner ring 22 and the outer ring 23, designed to accommodate rotating clamping structures and other related components to ensure that they can operate on the correct path without interference.

[0034] It should be noted that by designing the first rotating clamping structure and the second rotating clamping structure, more dispersed rotating clamping points are added to improve the connection strength and evenly distribute the load, which is particularly suitable for large-size or high-air-volume fans. In specific implementation, users can set more rotating clamping structures to improve the stability of the connection between the fan motor seat body 1 and the fan rear mesh cover 2.

[0035] As Figures 1-6As shown, specifically, the first rotating clamping structure includes first protrusions 11 arranged on the fan motor base body 1 and first clamping grooves 24 arranged in the mounting cavity 200 for the first protrusions 11 to be clamped into. Through the cooperation of the first protrusions 11 and the first clamping grooves 24, the fan rear mesh cover 2 and the fan motor base body 1 are quickly connected and fixed through relative rotation. The first protrusions 11 protrude towards the fan rear mesh cover 2, and at least two first protrusions 11 are arranged equidistantly along the circumference of the fan motor base body 1. The first protrusions 11 act as driving elements and play a guiding and preliminary positioning role during the rotation of the fan rear mesh cover 2, ensuring that they can enter the corresponding first clamping grooves 24 accurately. To make the connection between the fan rear mesh cover 2 and the fan motor base body 1 more stable and the rotating clamping more rapid, preferably, in this case, the first protrusions 11 and the first clamping grooves 24 are each correspondingly provided with four. Rotating the fan rear mesh cover 2 relative to the fan motor base body 1 can make the first protrusions 11 clamped into the first clamping grooves 24 and limitedly fixed. When the fan rear mesh cover 2 and the fan motor base body 1 are rotationally connected, the first protrusions 11 and the first clamping grooves 24 form a mortise and tenon structure. The first clamping grooves 24 act as passive elements, responsible for receiving the first protrusions 11 and firmly combining the two through a clamping mechanism. By arranging the first rotating clamping structure, the assembly process is simplified, and the user only needs to rotate to complete the connection and disassembly of the fan rear mesh cover 2 and the fan motor base body 1 without the need for additional tools or complex operation steps; in addition, this design also reduces the need for other auxiliary connecting parts, reducing production costs and product weight. One of the first protrusions 11 includes a positioning pin 111, and one of the first clamping grooves 24 includes a strip-shaped groove 241 for the positioning pin 111 to be clamped into and move in. The positioning pin 111 moves in the strip-shaped groove 241, guiding the rotation path of the fan rear mesh cover 2 and ensuring the correct alignment between the fan rear mesh cover 2 and the fan motor base body 1. This improves the installation precision and prevents installation failure due to incorrect rotation angle; in addition, the strip-shaped groove 241 allows a certain range of movement, accommodating manufacturing tolerances and assembly errors and increasing the fault tolerance of the system.

[0036] Specifically, continuing as Figures 1-6As shown, the second rotating clamping structure includes a second protrusion 12 arranged on the fan motor seat body 1 and a second clamping groove 25 arranged in the mounting cavity 200 for clamping the second protrusion 12. Through the cooperation of the second protrusion 12 and the second clamping groove 25, the fan rear mesh cover 2 and the fan motor seat body 1 are further connected and fixed by relative rotation, and double limiting and fixing are realized in cooperation with the first rotating clamping structure. The second protrusion 12 protrudes towards the fan rear mesh cover 2. In order to ensure the stability and redundancy of the connection, at least two second protrusions 12 are arranged equidistantly along the circumference of the fan motor seat body 1, and at this time, two second clamping grooves 25 are arranged in cooperation. In specific implementation, the second protrusion 12 and the second clamping groove 25 are preferably arranged two respectively, which is beneficial to the design and layout of the structure in limited space. Of course, the user can also arrange more. The second clamping groove 25 is arranged inside the mounting cavity 200 of the fan rear mesh cover 2 and is designed to have a shape and size capable of receiving the second protrusion 12, so that when the fan rear mesh cover 2 rotates relative to the fan motor seat body 1, the second protrusion 12 can smoothly slide into and be embedded in the second clamping groove 25. When the user rotates the fan rear mesh cover 2 to make it rotate relative to the fan motor seat body 1, the second protrusion 12 can be clamped into the second clamping groove 25 and limited and fixed. The second rotating clamping structure further simplifies the assembly process. Through the cooperation of the first rotating clamping structure and the second rotating clamping structure, the user only needs to rotate once to complete the primary positioning and secondary locking, without the need for additional operation steps; at the same time, the need for other auxiliary connecting pieces is reduced, and the production cost and product weight are reduced. The arrangement of the second rotating clamping structure increases the number of connection points between the fan rear mesh cover 2 and the fan motor seat body 1, improves the torsional strength, and makes the connection more firm; even in the case of failure of the first rotating clamping structure, a certain connection strength can still be maintained, thereby increasing the fault tolerance of the system.

[0037] Continue as Figures 1-6As shown, further, the second slot 25 is provided with a deformable guide piece 251, and the second protrusion 12 is ramp-shaped. The ramp design reduces the resistance during insertion, and plays a guiding role, making the installation more smooth; at the same time, it increases the torsional stiffness of the system, and enhances the stability and reliability of the connection. The guide piece 251 is fixedly connected to the fan rear net cover 2 at one end, and is a free end at the other end; when the fan rear net cover 2 is rotated to rotate relative to the fan motor base body 1, the second protrusion 12 pushes open the guide piece 251 and is clamped into the second slot 25 along the guide piece 251 to limit and fix. The guide piece 251 deforms when the second protrusion 12 enters, and then restores to its original state, firmly holding the second protrusion 12 in the second slot 25. The guide piece 251 provides a flexible guiding mechanism, reducing the friction and impact force during assembly, protecting the clamping components from damage; at the same time, the elastic recovery characteristics of the guide piece 251 ensure the tightness of the connection. The second rotary clamping structure introduces the deformable guide piece 251, and the first protrusion 11 with the positioning pin 111 in the improved first rotary clamping structure and the corresponding strip-shaped slot 241. These components work together to achieve a more precise, stable and easy-to-operate connection and fixation of the fan rear net cover 2 and the fan motor base body 1 through relative rotation.

[0038] Specifically, as shown in Figures 1-6 The first limiting structure includes a limiting protrusion 13 circumferentially arranged in the middle of the fan motor base body 1, and the limiting protrusion 13 is arranged equidistantly with at least two groups; when the fan rear net cover 2 is clamped on the fan motor base body 1, the limiting protrusion 13 extends into the through hole 21 and tightly abuts the inner wall surface of the inner ring 22. Through the above-mentioned first limiting structure, the quick positioning between the fan motor base body 1 and the fan rear net cover 2 is realized. Specifically, when the user installs, the through hole 21 on the fan rear net cover 2 is inserted into the fan motor base body 1, at which time the limiting protrusion 13 extends into the through hole 21 and tightly abuts the inner wall surface of the inner ring 22, completing the preliminary positioning, at which time the user continues to rotate the fan rear net cover 2 to complete the installation, further improving the installation efficiency of the two. In this case, preferably, to accurately and quickly position, and facilitate the rotation of the fan rear net cover 2 relative to the fan motor base body 1, the limiting protrusion 13 is provided with four groups.

[0039] Specifically, as shown in Figures 1-6As shown, to further improve the stability of the connection between the fan rear net cover 2 and the fan motor seat body 1. The first clamping structure includes a plurality of elastic clamping blocks 14 arranged circumferentially on the outer circumferential side wall of the fan motor seat body 1, and the elastic clamping blocks 14 are equidistantly arranged. When the fan rear net cover 2 is clamped on the fan motor seat body 1, the elastic clamping blocks 14 are clamped into and pressed against the inner wall surface of the outer ring 23. In specific implementation, to improve the connection stability, the elastic clamping blocks 14 are provided with four. The arrangement of the elastic clamping blocks 14 provides a firm locking mechanism, which further enhances the stability and reliability of the connection between the fan rear net cover 2 and the fan motor seat body 1.

[0040] In summary, it should be noted that in this case, when installing the fan rear net cover 2, the rotation direction relative to the fan motor seat body 1 is preferably clockwise rotation, at which time the first and second rotation clamping structures need to be set to enable the user to accurately install clockwise. Of course, it can also be achieved by changing the structure to realize counterclockwise installation.

[0041] Further, as shown in Figure 1 , Figures 7-10 , the fan rear net cover 2 is clamped with the fan front net cover 4 through the third rotation clamping structure, and the fan rear net cover 2 includes an annular connecting portion 26, and the inner side of the fan front net cover 4 is provided with an annular groove 41 for the annular connecting portion 26 to correspondingly insert. The annular connecting portion 26 is designed in a ring shape and is arranged at the end of the fan rear net cover 2, used for inserting into the annular groove 41 of the fan front net cover 4. The annular groove 41 is arranged on the inner side of the fan front net cover 4 and matches the annular connecting portion 26 to ensure that the two can be closely fitted. The third clamping structure cooperates with the structure of the annular connecting portion 26 and the annular groove 41, which simplifies the assembly process of the fan rear net cover 2 and the fan front net cover 4. The user only needs to align and insert to complete the connection without the need for additional tools or complex operation steps; in addition, this design also reduces the need for other auxiliary connecting parts, reduces production cost and product weight.

[0042] Continuing to refer to as Figure 1 , Figures 7-10As shown, specifically, the third rotating clamping structure includes a third protrusion 261 circumferentially arranged on the inner wall surface of the annular connecting portion 26, and a third clamping groove 411 arranged on the inner wall surface of the annular groove 41 and matched with the third protrusion 261 to be clamped into. The third protrusion 261 can be clamped into the third clamping groove 411 and fixed by rotating the front fan cover 4 relative to the rear fan cover 2. The third protrusion 261 and the third clamping groove 411 are arranged in matching, thereby providing a clear connection point for the connection between the rear fan cover 2 and the front fan cover 4, and enhancing the reliability and stability of the connection between the two. Meanwhile, the multi-point distribution design increases the torsional resistance of the overall structure and prevents accidental loosening. The third protrusion 261 and the third clamping groove 411 simplify the assembly process, and the user can complete the connection by simply rotating without the need for additional tools or complex operation steps. In addition, this design also reduces the need for other auxiliary connecting components, thereby reducing production costs and product weight.

[0043] Continuing to refer to the Figure 1 , Figures 7-10 As shown, further, the third protrusion 261 is equidistantly arranged with at least two. In specific implementation, to make the connection between the rear fan cover 2 and the front fan cover 4 more stable, the third protrusion 261 and the third clamping groove 411 are preferably arranged in matching with four respectively. The third clamping groove 411 includes a beveled end 4111 and a parallel end 4112. When the front fan cover 4 is rotated relative to the rear fan cover 2, the third protrusion 261 is clamped into the third clamping groove 411 along the beveled end 4111 and is limited from continuing to rotate by the parallel end 4112. The beveled end 4111 serves as a guide surface to help the third protrusion 261 smoothly slide into the third clamping groove 411. The parallel end 4112 serves as a limiting surface to ensure that the third protrusion 261 cannot continue to rotate after being clamped in, thereby fixing the position of the front fan cover 4. The structure design of the third protrusion 261 and the third clamping groove 411, in combination with the beveled end 4111 and the parallel end 4112 of the third clamping groove 411, simplifies the assembly process of the front fan cover 4 and the rear fan cover 2, and the user can complete the connection by simply rotating without the need for additional tools or complex operation steps. In addition, this design also reduces the need for other auxiliary connecting components, thereby reducing production costs and product weight. The design of the beveled end 4111 and the parallel end 4112 provides smooth guidance and reliable locking, thereby improving the user experience.

[0044] Referring to Figure 1 , Figure 10 , Figure 11As shown, the arrow indicating mark 5 and the rotation locking and unlocking mark 6 are arranged on the outer wall surface of the fan front grille 4 and / or the fan rear grille 2. In specific implementation, the arrow indicating mark 5 is a clear arrow pattern, easy to identify, used to guide the user to rotate the fan front grille 4 or the fan rear grille 2 in the correct direction, and provide specific rotation position, to ensure the smooth progress of the installation or disassembly process. Reduces the assembly error caused by misoperation; improves the user experience, especially for new users who are not familiar with the product; at the same time, clear identification helps to quickly locate, saves time and effort. In specific implementation, the rotation locking and unlocking mark 6 is usually the locking or unlocking pattern of a padlock, and can also be "LOCK" locking and "UNLOCK" unlocking patterns, or use different colored marks to distinguish, the rotation locking and unlocking mark 6 can prompt the user from where to lock and unlock, and clearly inform the user when to reach the locked or unlocked state, to prevent excessive rotation or incomplete fixation. Enhances the safety of operation, avoids unstable connection caused by uncertainty of whether to reach the position; provides an intuitive feedback mechanism, allowing the user to confirm whether the operation is successful; at the same time, it also increases the professionalism and quality of the product.

[0045] The quick disassembly and assembly principle of the fan grille of the present case is as follows:

[0046] First of all, make sure that the fan motor seat body 1 has been firmly fixed in the predetermined position, and all the connecting parts such as power cord have been properly connected. Align the through hole 21 of the fan rear grille 2 with the fan motor seat body 1, so that the fan motor shaft can smoothly pass through. Confirm that the limiting protrusion 13 can accurately extend into the through hole 21 and tightly fit the inner wall surface of the inner ring 22, to realize quick positioning. Rotate the fan rear grille 2 in the direction indicated by the arrow indicating mark 5, until you hear a "click" sound indicating that the first protrusion 11 in the first rotation joint structure has successfully entered the first card slot 24. At the same time, the second protrusion 12 in the second rotation joint structure slides into the second card slot 25 along the guide piece 251, completing the secondary locking. Finally, confirm that the elastic clamping block 14 in the first joint structure has been pressed tightly on the inner wall surface of the outer ring 23, to ensure the stable connection between the fan rear grille 2 and the fan motor seat body 1.

[0047] Then, the annular groove 41 of the fan front net cover 4 is aligned with the annular connecting part 26 of the fan rear net cover 2, and the third protrusion 261 is roughly aligned with the inclined end 4111 of the third clamping groove 411. The correct rotation direction is determined by observing the arrow indication mark 5. The fan front net cover 4 is gently pushed towards the fan rear net cover 2 until the annular connecting part 26 is completely inserted into the annular groove 41. The fan front net cover 4 is rotated in the direction indicated by the arrow indication mark 5, so that the third protrusion 261 slides along the inclined end 4111 into the third clamping groove 411 until a “click” sound is heard and the rotation locking / unlocking mark 6 is seen, indicating that the successful clamping and limiting fixing have been achieved. Finally, the fan front net cover 4 is slightly pulled to confirm whether it has been firmly installed. If it feels tight without looseness, it means that the installation is successful.

[0048] The disassembly mode is reversed.

[0049] As described above, the protection of the present case is a quick disassembly structure of a fan net cover, and all technical solutions identical or similar to the present case should be shown to fall within the protection scope of the present case.

Claims

1. A quick disassembly and assembly structure for a fan guard, characterized by: The application relates to a fan motor seat body (1) which is provided with a fan rear mesh cover (2) through a first rotating clamping structure, a second rotating clamping structure, a first limiting structure and a first clamping structure.

2. The quick release structure of a fan cover according to claim 1, wherein: The first rotating clamping structure comprises first protrusions (11) arranged on the fan motor seat body (1), first clamping grooves (24) arranged in the mounting cavity (200) and matched with the first protrusions (11), the first protrusions (11) protrude towards the fan rear mesh cover (2), at least two first protrusions (11) are arranged on the fan motor seat body (1) at equal intervals in the circumferential direction, the fan rear mesh cover (2) is rotated relative to the fan motor seat body (1), the first protrusions (11) are clamped into the first clamping grooves (24) and are limited and fixed, and one of the first protrusions (11) comprises a positioning pin (111), one of the first clamping grooves (24) comprises a strip-shaped groove (241) for clamping the positioning pin (111) and allowing the positioning pin (111) to move in the strip-shaped groove (241).

3. The quick release structure of a fan cover according to claim 1, wherein: The second rotating clamping structure comprises second protrusions (12) arranged on the fan motor seat body (1), second clamping grooves (25) arranged in the mounting cavity (200) and matched with the second protrusions (12), the second protrusions (12) protrude towards the fan rear mesh cover (2), at least two second protrusions (12) are arranged on the fan motor seat body (1) at equal intervals in the circumferential direction, the fan rear mesh cover (2) is rotated relative to the fan motor seat body (1), the second protrusions (12) are clamped into the second clamping grooves (25) and are limited and fixed.

4. The quick release structure of a fan cover according to claim 3, wherein: The second clamping groove (25) is provided with a deformable guide piece (251), the second protrusion (12) is in the shape of a slope, one end of the guide piece (251) is fixedly connected to the fan rear mesh cover (2) and the other end is a free end; when the fan rear mesh cover (2) is rotated relative to the fan motor seat body (1), the second protrusion (12) pushes open the guide piece (251) and is clamped into the second clamping groove (25) along the guide piece (251) to be limited and fixed.

5. The quick release structure of a fan cover according to claim 1, wherein: The first limiting structure comprises limiting protrusions (13) arranged at the middle part of the fan motor seat body (1) in the circumferential direction, at least two groups of the limiting protrusions (13) are arranged at equal intervals; when the fan rear mesh cover (2) is clamped on the fan motor seat body (1), the limiting protrusions (13) extend into the through hole (21) and are tightly attached to the inner wall surface of the inner ring (22).

6. The quick release structure of a fan cover according to claim 1, wherein: The first clamping structure comprises elastic clamping blocks (14) arranged on the outer peripheral sidewall of the fan motor seat body (1) in the circumferential direction, at least two elastic clamping blocks (14) are arranged at equal intervals; when the fan rear mesh cover (2) is clamped on the fan motor seat body (1), the elastic clamping blocks (14) are clamped into and pressed against the inner wall surface of the outer ring (23).

7. The quick release structure of a fan cover according to any one of claims 1-6, characterized in that: The fan rear net cover (2) is clamped with a fan front net cover (4) through a third rotating clamping structure, the fan rear net cover (2) comprises an annular connecting part (26), and the inner side of the fan front net cover (4) is provided with an annular groove (41) for corresponding insertion of the annular connecting part (26).

8. The quick release structure of a fan cover according to claim 7, wherein: The third rotating clamping structure comprises third protrusions (261) circumferentially arranged on the inner wall surface of the annular connecting part (26), third clamping grooves (411) arranged on the inner wall surface of the annular groove (41) and clamped with the third protrusions (261), and the third protrusions (261) are clamped into the third clamping grooves (411) and are limited and fixed by rotating the fan front net cover (4) relative to the fan rear net cover (2).

9. The quick release structure of a fan cover according to claim 8, wherein: The third protrusions (261) are equidistantly arranged at least two, and the third clamping grooves (411) comprise inclined ends (4111) and parallel ends (4112); when the fan front net cover (4) is rotated relative to the fan rear net cover (2), the third protrusions (261) are clamped into the third clamping grooves (411) along the inclined ends (4111) and the rotation of the fan front net cover (4) is limited by the parallel ends (4112).

10. The quick release structure of a fan cover according to claim 7, wherein: The outer wall surface of the fan front net cover (4) and / or the fan rear net cover (2) is provided with an arrow indicating mark (5) and a rotating locking and unlocking mark (6).

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