CN219345012U - Net cover assembly and fan with same - Google Patents

Abstract

The utility model provides a mesh enclosure assembly and a fan with the mesh enclosure assembly, wherein the mesh enclosure assembly comprises: the front screen comprises a screen body, an annular mounting platform is arranged on the inner surface of the screen body, and at least one first buckle is arranged on the mounting platform; the back screen panel, back screen panel have hold the chamber, hold the lateral wall in chamber be provided with first buckle one-to-one's second buckle, first buckle and second buckle block to be connected preceding screen panel and back screen panel. By applying the technical scheme of the utility model, the annular mounting platform is arranged on the inner surface of the net cover body of the front net cover, at least one first buckle is arranged on the annular mounting platform, the second buckles corresponding to the first buckles one by one are arranged on the side wall of the accommodating cavity of the rear net cover, the first buckles are buckled with the second buckles, the assembly of the front net cover and the rear net cover is completed, the installation of the front net cover and the rear net cover is simple and convenient, and the assembly efficiency of the front net cover and the rear net cover is greatly improved.

Description

Net cover assembly and fan with same

Technical Field

The utility model relates to the technical field of fan equipment, in particular to a mesh enclosure assembly and a fan with the mesh enclosure assembly.

Background

In the current market, the types of fans are endless, the mesh enclosure is used as a necessary structure for most fans, and the fixing mode is updated continuously. Existing large-scale fans: the floor fan, the circulating fan and the like are all provided with a net cover structure. According to the relevant regulations of the state, the disassembly process of the product by the user cannot be finished by bare hands, so that the standard fan product in the market at present is mainly fixed by adopting a simple screw consolidation mode, the positioning and fixing structure of the screen is insufficient, the position guide cannot be accurately determined to guide the assembly during the assembly, the assembly efficiency is affected, and the standard fan product is not beneficial to the disassembly and cleaning of the user at ordinary times.

Disclosure of Invention

The utility model mainly aims to provide a net cover assembly and a fan with the same, so as to solve the problem of low assembly efficiency of front and rear net covers in the prior art.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a net cover assembly comprising: the front screen comprises a screen body, an annular mounting platform is arranged on the inner surface of the screen body, and at least one first buckle is arranged on the annular mounting platform; the back screen panel, back screen panel have hold the chamber, hold the lateral wall in chamber be provided with first buckle one-to-one's second buckle, first buckle and second buckle block to be connected preceding screen panel and back screen panel.

Further, the front mesh enclosure includes: the second end of the connecting cylinder is connected with the annular mounting platform, and a plurality of foolproof grooves are formed in the end part of the first end of the connecting cylinder at intervals.

Further, the width of at least one fool-proof groove is set differently from the width of the remaining fool-proof grooves.

Further, the first buckle includes first group section and second group section and direction section, the first end and the annular mounting platform of first group section are connected, the second end of first group section extends along the direction that is close to the first end of connecting cylinder and sets up and be connected with the first end of second group section, the second end of second group section extends along the circumference direction of annular mounting platform and sets up, the first end and the annular mounting platform of direction section are connected, the second end of direction section extends along the circumference direction of annular mounting platform and sets up and is connected with the second end of first group section and the first end of second group section, form first spacing space between second group section and the annular mounting platform, at least partial second buckle is located first spacing space.

Further, the second buckle includes third composition section, fourth composition section and fifth composition section, the first end of third composition section extends along the circumference direction of back screen panel and sets up, the second end of third composition section extends along the axial direction of back screen panel and is set up and is connected with the first end of fourth composition section, the second end of fourth composition section extends along the circumference direction of back screen panel and is set up and is connected with the first end of fifth composition section, the second end of fifth composition section extends along the circumference direction of back screen panel, wherein, third composition section and fourth composition section have first contained angle setting, fourth composition section and fifth composition section have second contained angle setting, and form the spacing space of second between third composition section and the fourth composition section, partial first buckle is located the spacing space of second, the first buckle of fourth composition section and fifth composition section forms the pre-installation guide surface towards the surface of one side of third composition section.

Further, the annular mounting platform is further provided with elastic buckles, the elastic buckles and the first buckles are arranged at intervals along the circumferential direction of the annular mounting platform, and the end parts of the second ends of the elastic buckles are abutted against the outer wall surface of the connecting cylinder.

Further, the annular mounting platform is provided with a limit box, and the limit box and the first buckle are positioned on the same side.

Further, the side wall of the accommodating cavity is also provided with a positioning rib, and the positioning rib and the second buckle are arranged at intervals.

Further, the end face of the first end of the elastic buckle is provided with a U-shaped groove, the bottom of the U-shaped groove is convexly provided with a limiting column, two sides of the limiting column are respectively provided with an elastic arm, and after the front net cover and the rear net cover are assembled in place, the limiting column is in tight contact with the positioning ribs.

Further, the side wall of the accommodating cavity is further provided with a first connecting piece, the first connecting piece is connected with the positioning rib, the outer wall surface of the connecting cylinder is provided with a second connecting piece matched with the first connecting piece, and the second connecting piece and the elastic buckle are arranged at intervals along the axial direction of the connecting cylinder.

According to another aspect of the present utility model, there is provided a fan including a mesh enclosure assembly, wherein the mesh enclosure assembly is the mesh enclosure assembly.

By applying the technical scheme of the utility model, the annular mounting platform is arranged on the inner surface of the net cover body of the front net cover, at least one first buckle is arranged on the annular mounting platform, the second buckles corresponding to the first buckles one by one are arranged on the side wall of the accommodating cavity of the rear net cover, the first buckles are buckled with the second buckles, the assembly of the front net cover and the rear net cover is completed, the installation of the front net cover and the rear net cover is simple and convenient, and the assembly efficiency of the front net cover and the rear net cover is greatly improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic structural view of a first embodiment of a screen assembly according to the present utility model;

fig. 2 shows a schematic structural view of a second embodiment of a screen assembly according to the present utility model;

fig. 3 shows a schematic structural view of a first embodiment of a front mesh enclosure according to the utility model;

fig. 4 shows a schematic structural view of an embodiment of a rear net cover according to the present utility model;

fig. 5 shows a schematic structural view of a second embodiment of a front mesh enclosure according to the utility model;

fig. 6 shows a schematic structural view of a third embodiment of a front mesh enclosure according to the utility model;

fig. 7 shows a schematic structural view of an embodiment of a second clasp according to the utility model.

Wherein the above figures include the following reference numerals:

10. a front mesh enclosure; 100. a mesh enclosure body; 101. an annular mounting platform; 102. a connecting cylinder; 11. a fool-proof groove; 12. a second connector; 13. an annular air duct; 14. spring buckle; 141. an elastic arm; 142. a limit column; 15. a limit box; 16. a first buckle; 161. a first component section; 162. a second component section; 163. a guide section;

20. a fastening screw;

30. a rear mesh enclosure; 300. a receiving chamber; 31. a first connector; 32. positioning ribs; 33. a second buckle; 331. a third component section; 332. a fourth component section; 333. and a fifth component section.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art, that in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and that identical reference numerals are used to designate identical devices, and thus descriptions thereof will be omitted.

As shown in connection with fig. 1-7, a mesh enclosure assembly is provided according to an embodiment of the present application.

Specifically, the screen assembly includes a front screen 10 and a rear screen 30, the front screen 10 includes a screen body 100, an inner surface of the screen body 100 is provided with an annular mounting platform 101, and the annular mounting platform 101 is provided with at least one first buckle 16. The rear mesh enclosure 30 is provided with a containing cavity 300, the side wall of the containing cavity 300 is provided with second buckles 33 corresponding to the first buckles 16 one by one, and the first buckles 16 are buckled with the second buckles 33 so as to connect the front mesh enclosure 10 with the rear mesh enclosure 30.

By applying the technical scheme of the embodiment, the annular mounting platform 101 is arranged on the inner surface of the screen body 100 of the front screen 10, at least one first buckle 16 is arranged on the annular mounting platform 101, the second buckles 33 corresponding to the first buckles 16 one by one are arranged on the side wall of the accommodating cavity of the rear screen 30, the first buckles 16 and the second buckles 33 are buckled, the front screen 10 and the rear screen 30 are assembled, the front screen 10 and the rear screen 30 are installed simply and conveniently, and the assembly efficiency of the front screen 10 and the rear screen 30 is greatly improved.

As shown in fig. 1 to 3, the front net cover 10 includes a connecting cylinder 102, a second end of the connecting cylinder 102 is connected with an annular mounting platform 101, and a plurality of fool-proof grooves 11 are formed at intervals at an end of a first end of the connecting cylinder 102. Specifically, the number of the fool-proof grooves 11 is four. It should be noted that, here, only one embodiment of the present application is provided, and in practical application, the number of the fool-proof slots 11 may be set according to practical requirements, and is not limited to four. Through setting up prevent slow-witted groove 11 so that current screen panel 10 and back screen panel 30 are correctly installed when putting in place, just can realize the zonulae occludens of preceding screen panel 10 and back screen panel 30, otherwise the assembly of preceding screen panel 10 and back screen panel 30 will not be accomplished, has set up the assembly reliability that has improved preceding screen panel 10 and back screen panel 30 like this.

Further, the width of at least one fool-proof groove 11 is set differently from the width of the remaining fool-proof grooves 11. Specifically, the widths of the three fool-proof grooves 11 are the same, and the width of the rest fool-proof groove 11 is smaller than the widths of the three fool-proof grooves 11, so that the tight connection between the front screen 10 and the rear screen 30 can be realized only when the front screen 10 and the rear screen 30 are correctly installed in place.

Specifically, the first fastener 16 includes a first component section 161, a second component section 162, and a guide section 163 (as shown in fig. 5), where a first end of the first component section 161 is connected to the annular mounting platform 101, a second end of the first component section 161 extends in a direction close to the first end of the connecting cylinder 102 and is connected to the first end of the second component section 162, a second end of the second component section 162 extends in a circumferential direction of the annular mounting platform 101, a first end of the guide section 163 is connected to the annular mounting platform 101, a second end of the guide section 163 extends in a circumferential direction of the annular mounting platform 101 and is connected to the second end of the first component section 161 and the first end of the second component section 162, a first limiting space is formed between the second component section 162 and the annular mounting platform 101, and at least a portion of the second fastener 33 is located in the first limiting space. This arrangement improves the reliability of the connection between the first 16 and second 33 catches, wherein the first component 161 serves as a positioning.

Further, the second buckle 33 includes a third component 331, a fourth component 332 and a fifth component 333 (as shown in fig. 7), the first end of the third component 331 extends along the circumferential direction of the rear screen 30, the second end of the third component 331 extends along the axial direction of the rear screen 30 and is connected to the first end of the fourth component 332, the second end of the fourth component 332 extends along the circumferential direction of the rear screen 30 and is connected to the first end of the fifth component 333, and the second end of the fifth component 333 extends along the circumferential direction of the rear screen 30. The third component section 331 and the fourth component section 332 are disposed at a first included angle, the fourth component section 332 and the fifth component section 333 are disposed at a second included angle, a second limiting space is formed between the third component section 331 and the fourth component section 332, a portion of the first fastener 16 is located in the second limiting space, a preassembly guiding surface is formed on a surface of one side of the fourth component section 332 and the fifth component section 333 facing the third component section 331, and the preassembly guiding surface is disposed in cooperation with the guiding section 163. In this embodiment, the guide section 163 includes a first straight line section and a first bending section, wherein a first end of the first straight line section is connected to the annular mounting platform 101, a second end of the first straight line section is connected to the first end of the first bending section, and a second end of the second bending section extends along the circumferential direction of the annular mounting platform 101 and is connected to the second end of the first component section 161 and the first end of the second component section 162. The fifth component 333 includes a second straight line segment and a second bent segment, where a first end of the second bent segment is connected to a second end of the fourth component 332, and a second end of the second bent segment is connected to a first end of the second straight line segment, and the second end of the second straight line segment extends along a circumferential direction of the rear mesh enclosure 30. In the assembly process of the front screen 10 and the rear screen 30, when the first straight line section of the guide section 163 is abutted against the second straight line section of the fifth component section 333, an included angle of 90 degrees is formed between the first straight line section and the second straight line section, and the first bending section of the guide section 163 is overlapped with the second bending section of the fifth component section 333, the front screen 10 and the rear screen 30 are initially installed, the assembly of the front screen 10 and the rear screen 30 is guided through preassembled guide faces, and the front screen 10 and the rear screen 30 are assembled in place. Specifically, when the second component section 162 is completely located in the second limiting space, the assembly of the front mesh enclosure 10 and the rear mesh enclosure 30 is completed. This arrangement makes the assembly of the front net cover 10 and the rear net cover 30 simpler and more reliable.

As shown in fig. 3, the annular mounting platform 101 is further provided with a snap 14, the snap 14 and the first buckle 16 are disposed at intervals along the circumferential direction of the annular mounting platform 101, and an end of the second end of the snap 14 abuts against the outer wall surface of the connecting tube 102. In this embodiment, the snap 14 plays a role in positioning the assembly of the front mesh enclosure 10 and the rear mesh enclosure 30, and further improves the reliability of the assembly of the front mesh enclosure 10 and the rear mesh enclosure 30.

In an exemplary embodiment of the present application, the annular mounting platform 101 is provided with a limit box 15, and the limit box 15 is located on the same side as the first buckle 16. When first buckle 16 and second buckle 33 block mutually, can play spacing effect to first buckle 16 and second buckle 33 through spacing box 15, guaranteed the firm installation of preceding screen panel 10 and back screen panel 30.

Further, a positioning rib 32 is further disposed on a side wall of the accommodating cavity 300, and the positioning rib 32 is disposed at a distance from the second buckle 33. By arranging the positioning ribs 32, the positioning function is achieved when the front screen 10 and the rear screen 30 are installed, and the assembly precision of the front screen 10 and the rear screen 30 is improved.

Further, a U-shaped groove is formed in the end face of the first end of the snap fastener 14, a limiting post 142 is convexly arranged at the bottom of the U-shaped groove, two elastic arms 141 are respectively arranged on two sides of the limiting post 142, and after the front net cover 10 and the rear net cover 30 are assembled in place, the limiting post 142 is in close contact with the positioning rib 32. In this embodiment, the tangential positioning of the front mesh enclosure 10 and the rear mesh enclosure 30 is completed through the limiting posts 142 and the positioning ribs 32, so that the problem that the front mesh enclosure 10 and the rear mesh enclosure 30 cannot accurately determine the position, guide and guide the assembly in the prior art is solved.

In another exemplary embodiment of the present application, the limit boxes 15 are plural, wherein one limit box 15 is also provided on the same side of the latch 14. The limiting box 15 arranged on the same side of the elastic buckle 14 can limit the positioning rib 32 and the elastic buckle 14, and further ensures the stable installation of the front net cover 10 and the rear net cover 30.

Specifically, the side wall of the accommodating cavity 300 is further provided with a first connecting piece 31, the first connecting piece 31 is connected with the positioning rib 32, the outer wall surface of the connecting cylinder 102 is provided with a second connecting piece 12 matched with the first connecting piece 31, and the second connecting piece 12 and the elastic buckle 14 are arranged at intervals along the axial direction of the connecting cylinder 102. In this embodiment, the first connecting member 31 is a connecting protrusion, wherein the connecting protrusion is in a cylindrical structure, the middle of the connecting protrusion is provided with a first connecting hole, the second connecting member 12 is a screw column, the middle of the second connecting member 12 is provided with a second connecting hole, the first buckle 16 and the second buckle 33 are engaged, when the limiting column 142 is in close contact with the positioning rib 32, the positioning of the front mesh enclosure 10 and the rear mesh enclosure 30 is completed, the first connecting hole is aligned with the second connecting hole, and at this time, the final fixing of the front mesh enclosure 10 and the rear mesh enclosure 30 is completed by driving fastening screws 20 in the first connecting hole and the second connecting hole, thereby further improving the assembly stability of the front mesh enclosure 10 and the rear mesh enclosure 30.

Wherein, an annular air duct 13 is formed between the annular mounting platform 101 of the front net cover 10 and the outer wall surface of the connecting cylinder 102. The assembly process of the mesh enclosure component is as follows: the connecting cylinder 102 is inserted into the rear net cover 30, and under the action of the four fool-proof grooves 11, the front net cover 10 can only be inserted from the bottom to the position of the snap 14, so that fool-proof assembly is realized. After the connecting cylinder 102 is inserted into the rear screen 30 and assembled in place, the guide section 163 of the first buckle 16 is contacted with the preassembled guide surface of the second buckle 33, then the front screen 10 is rotated clockwise, the first buckle 16 enters the second limit space of the second buckle 33 through the preassembled guide surface until the second component section of the first buckle 16 is completely positioned in the second limit space, and at the moment, the first component section 161 is contacted with the third component section 331, the rotation is stopped, and the limit assembly is completed. The front mesh enclosure 10 is provided with three first buckles 16, the rear mesh enclosure 30 is provided with three second buckles 33, the three first buckles 16 are respectively distributed on the annular mounting platform 101 in the 90-degree direction, the three second buckles are respectively distributed on the side wall of the accommodating cavity 300 in the 90-degree direction, and the three first buckles 16 and the three second buckles 33 reach limit positions at the same time, so that the circumferential freedom degree can be effectively limited. When the limiting of the first buckle 16 and the second buckle 33 is completed, the elastic arm 141 on one side of the elastic buckle 14 is compressed by the rear net positioning rib 32 and then rebounds, the positioning rib 32 passes through the elastic arm 141 on one side, the positioning rib 32 is in close contact with the limiting post 142, the tangential positioning of the front net cover 10 and the rear net cover 30 is completed, the compression and the recovery of the elastic arm 141 are also used for prompting an installer, the positioning is completed, the first connecting piece 31 is aligned with the second connecting piece 12, and the fastening screw 20 can be driven to complete the final fixing, so that the front net cover 10 and the rear net cover 30 are positioned accurately on the whole during the assembly, the limiting strength is enough, the front net cover 10 and the rear net cover 30 are assembled on the whole through rotation, the front net cover 10 can be screwed in and out only by small force, the assembly limiting prompt of the front net cover 10 and the rear net cover 30 is clear, and better experience is brought to a user. The fixation of front screen panel 10 and back screen panel 30 can effectively be easily accomplished to this scheme, has solved the problem that assembly efficiency is low of front and back screen panels among the prior art. As an alternative embodiment, the distribution manner of the first buckle 16 and the second buckle 33 may be appropriately adjusted according to the requirement, and is not limited to 90 ° uniform distribution, and the snap 14 may be replaced by a limit groove.

According to another embodiment of the present application, a fan is provided, including a mesh enclosure assembly, where the mesh enclosure assembly is the mesh enclosure assembly in the foregoing embodiment.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition to the foregoing, references in the specification to "one embodiment," "another embodiment," "an embodiment," etc., mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described in general terms in the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the utility model.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A screen assembly, comprising:

the front screen (10), the front screen (10) comprises a screen body (100), an annular mounting platform (101) is arranged on the inner surface of the screen body (100), and at least one first buckle (16) is arranged on the annular mounting platform (101);

the rear screen (30), the rear screen (30) is provided with a containing cavity (300), the side wall of the containing cavity (300) is provided with second buckles (33) corresponding to the first buckles (16) one by one, and the first buckles (16) are buckled with the second buckles (33) so as to connect the front screen (10) with the rear screen (30);

the front mesh enclosure (10) includes: the connecting cylinder (102), the second end of connecting cylinder (102) with annular mounting platform (101) are connected, a plurality of fool-proof grooves (11) have been seted up to the tip of the first end of connecting cylinder (102) at intervals.

2. The screen assembly according to claim 1, wherein the width of at least one of the fool-proof slots (11) is set differently from the width of the remaining fool-proof slots (11).

3. The screen assembly according to claim 1 or 2, wherein the first buckle (16) comprises a first component section (161) and a second component section (162) and a guide section (163), the first end of the first component section (161) is connected with the annular mounting platform (101), the second end of the first component section (161) is arranged in a direction close to the first end of the connecting cylinder (102) in an extending manner and is connected with the first end of the second component section (162), the second end of the second component section (162) is arranged in a circumferential direction of the annular mounting platform (101) in an extending manner, the first end of the guide section (163) is connected with the annular mounting platform (101), the second end of the guide section (163) is arranged in a circumferential direction of the annular mounting platform (101) in an extending manner and is connected with the second end of the first component section (161) and the first end of the second component section (162), the second component section (162) and the second buckle form at least a first limit space (33) between the annular mounting platform and the second buckle.

4. The screen assembly according to claim 3, wherein the second buckle (33) comprises a third component section (331), a fourth component section (332) and a fifth component section (333), a first end of the third component section (331) is arranged to extend in a circumferential direction of the rear screen (30), a second end of the third component section (331) is arranged to extend in an axial direction of the rear screen (30) and is connected to a first end of the fourth component section (332), a second end of the fourth component section (332) is arranged to extend in a circumferential direction of the rear screen (30) and is connected to a first end of the fifth component section (333), a second end of the fifth component section (333) is arranged to extend in a circumferential direction of the rear screen (30),

the third component section (331) and the fourth component section (332) are arranged in a first included angle manner, the fourth component section (332) and the fifth component section (333) are arranged in a second included angle manner, a second limiting space is formed between the third component section (331) and the fourth component section (332), part of the first buckle (16) is located in the second limiting space, and the surfaces of one side of the fourth component section (332) and the fifth component section (333) facing the third component section (331) form a preassembly guide surface.

5. The screen assembly according to claim 4, wherein the annular mounting platform (101) is further provided with snap buttons (14), the snap buttons (14) and the first snap buttons (16) are arranged at intervals along the circumferential direction of the annular mounting platform (101), and an end portion of the second end of the snap buttons (14) is abutted against the outer wall surface of the connecting cylinder (102).

6. The screen assembly according to claim 5, wherein a limit box (15) is arranged on the annular mounting platform (101), and the limit box (15) and the first buckle (16) are located on the same side.

7. The screen assembly according to claim 6, wherein a positioning rib (32) is further provided on a side wall of the accommodating cavity (300), and the positioning rib (32) is spaced from the second buckle (33).

8. The mesh enclosure assembly according to claim 7, characterized in that a U-shaped groove is formed in an end face of the first end of the elastic buckle (14), a limiting column (142) is convexly arranged at the bottom of the U-shaped groove, two elastic arms (141) are respectively arranged at two sides of the limiting column (142), and after the front mesh enclosure (10) and the rear mesh enclosure (30) are assembled in place, the limiting column (142) is in tight contact with the positioning rib (32).

9. The mesh enclosure assembly according to claim 8, characterized in that a first connecting piece (31) is further arranged on the side wall of the accommodating cavity (300), the first connecting piece (31) is connected with the positioning rib (32), a second connecting piece (12) matched with the first connecting piece (31) is arranged on the outer wall surface of the connecting cylinder (102), and the second connecting piece (12) and the elastic buckle (14) are arranged at intervals along the axial direction of the connecting cylinder (102).

10. A fan comprising a screen assembly as claimed in any one of claims 1 to 9.

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