Fan convenient to disassemble and assemble and range hood

Abstract

The utility model discloses a fan convenient to disassemble and assemble and discloses a range hood, the fan convenient to disassemble and assemble comprises a volute assembly and a locking piece, the volute assembly comprises a first shell and a second shell which are detachably connected, and the first shell and the second shell define a containing cavity; the outer side of the first shell is provided with a plurality of first grooves arranged at intervals, notches of the first grooves deviate from the second shell, the outer side of the second shell is provided with a plurality of second grooves arranged at intervals, notches of the second grooves deviate from the first shell, and the locking piece comprises a first locking part, a connecting part and a second locking part which are sequentially connected. The first locking part is partially contained in the first groove and can abut against the side wall of the first groove, the second locking part is partially contained in the second groove and can abut against the side wall of the second groove, and the connecting part is elastic so that the first locking part and the second locking part can get close to each other or get away from each other. The volute assembly can be conveniently mounted or dismounted, so that the fan is conveniently dismounted and mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, and particularly relates to a fan and a range hood which are convenient to disassemble and assemble. Background Art

[0002] The existing fan of a range hood includes a volute assembly, a motor and an impeller. The output shaft of the motor is connected to the impeller to drive the impeller to rotate. The motor and the impeller are integrally installed in the volute assembly. The volute assembly includes a first housing and a second housing, and the first housing and the second housing are connected by a plurality of bolts. After the fan is used for a long time, it is necessary to maintain the motor or the impeller. Maintenance personnel need to disassemble a plurality of bolts to open and separate the first housing and the second housing. The operation is complex and it is not convenient to disassemble or assemble the fan. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, the utility model provides a fan which is convenient to disassemble and assemble, and can facilitate the disassembly or assembly of the fan.

[0004] The utility model also provides a range hood having the above-mentioned fan which is convenient to disassemble and assemble.

[0005] The fan which is convenient to disassemble and assemble according to the first aspect embodiment of the utility model includes:

[0006] A volute assembly, including a first housing and a second housing which are detachably connected. The first housing and the second housing enclose to form a receiving cavity. The receiving cavity has an air inlet and an air outlet. Along the circumferential direction of the first housing, a plurality of first grooves which are arranged at intervals are provided on the outer side of the first housing. The notch of the first groove faces away from the second housing. Along the circumferential direction of the second housing, a plurality of second grooves which are arranged at intervals are provided on the outer side of the second housing. The notch of the second groove faces away from the first housing;

[0007] A locking member, including a first locking portion, a connecting portion and a second locking portion which are connected in sequence. The first locking portion is partially received in the first groove and can abut against the side wall of the first groove. The second locking portion is partially received in the second groove and can abut against the side wall of the second groove. The connecting portion has elasticity, so that the first locking portion and the second locking portion can approach or separate from each other.

[0008] The fan which is convenient to disassemble and assemble according to the first aspect embodiment of the utility model has at least the following beneficial effects:

[0009] One end of the connecting part is connected to the first locking part, and the other end of the connecting part is connected to the second locking part. The first locking part and the second locking part are arranged opposite to each other. When assembling the volute component, the end of the second locking part far from the connecting part can be first inserted into the second groove. Then, the connecting part is bent to increase the distance between the first locking part and the second locking part, so as to insert the end of the first locking part far from the connecting part into the first groove. At this time, the connecting part rebounds, which can limit the separation of the first housing and the second housing, prevent the end of the first locking part far from the connecting part from automatically withdrawing from the first groove, and prevent the end of the second locking part far from the connecting part from automatically withdrawing from the second groove. When disassembling the volute component, use a flat-blade wrench or other tools to abut against the first locking part and pry out the first locking part from the first groove. The operation is simple, convenient and fast, which can facilitate the installation or disassembly of the volute component and thus facilitate the disassembly and assembly of the fan.

[0010] According to some embodiments of the present invention, the locking member further includes an abutting part, the abutting part is connected to the end of the first locking part far from the connecting part, and the abutting part is spaced from the side of the first groove far from the first locking part.

[0011] According to some embodiments of the present invention, the connecting part, the first locking part, the second locking part and the abutting part are of an integral structure.

[0012] According to some embodiments of the present invention, a positioning structure is provided between the first housing and the second housing.

[0013] According to some embodiments of the present invention, the positioning structure includes a positioning pin and a positioning hole. One of the positioning pin and the positioning hole is provided on the first housing, and the other is provided on the second housing, and the positioning pin is received in the positioning hole.

[0014] According to some embodiments of the present invention, the side of the first locking part facing the second locking part is a first arc surface, and in the direction from the second locking part to the first locking part, the first arc surface is recessed. The peripheral edge of the notch of the first groove near the connecting part is provided with a second arc surface, and the first arc surface matches the second arc surface.

[0015] According to some embodiments of the present invention, the side of the second locking part facing the first locking part is a third arc surface, and in the direction from the first locking part to the second locking part, the third arc surface is recessed. The peripheral edge of the notch of the second groove near the connecting part is provided with a fourth arc surface, and the third arc surface matches the fourth arc surface.

[0016] According to some embodiments of the present utility model, the first housing is provided with a first receiving groove, the second housing is provided with a second receiving groove, the first receiving groove and the second receiving groove enclose to form the receiving cavity, and a sealing structure is provided between the first housing and the second housing, and the sealing structure is used for sealing the first housing and the second housing.

[0017] According to some embodiments of the present utility model, the sealing structure includes a sealing groove and a sealing protrusion, one of the sealing groove and the sealing protrusion is provided at the periphery of the notch of the first receiving groove, and the other is provided at the periphery of the notch of the second receiving groove, and the sealing protrusion is received in the sealing groove.

[0018] The range hood according to the second aspect embodiment of the present utility model includes the blower that is easy to disassemble and assemble described in the above embodiments.

[0019] The range hood according to the second aspect embodiment of the present utility model has at least the following beneficial effects:

[0020] When assembling the volute assembly, the end of the second locking portion away from the connecting portion can be first inserted into the second groove. After that, the connecting portion is bent to increase the distance between the first locking portion and the second locking portion, so as to insert the end of the first locking portion away from the connecting portion into the first groove. At this time, the connecting portion rebounds, which can limit the separation of the first housing and the second housing, prevent the end of the first locking portion away from the connecting portion from automatically withdrawing from the first groove, and prevent the end of the second locking portion away from the connecting portion from automatically withdrawing from the second groove. When disassembling the volute assembly, use a tool such as a flat wrench to abut against the first locking portion and pry out the first locking portion from the first groove. The operation is simple, convenient and fast, which can facilitate the installation or disassembly of the volute assembly, so as to facilitate the disassembly and assembly of the blower.

[0021] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0023] Figure 1 is a schematic structural diagram of the blower that is easy to disassemble and assemble according to the embodiment of the present utility model;

[0024] Figure 2 is an exploded view of the blower that is easy to disassemble and assemble according to the embodiment of the present utility model;

[0025] Figure 3 is a top view of the blower that is easy to disassemble and assemble according to the embodiment of the present utility model;

[0026] Figure 4 is Figure 3 a sectional view taken along line A-A in

[0027] Figure 5 is Figure 4 an enlarged partial view of part B in

[0028] Figure 6 is Figure 5 a schematic diagram when the first locking portion does not enter the first groove in

[0029] Figure 7 a schematic structural view of the locking member according to an embodiment of the present utility model;

[0030] Figure 8 a schematic structural view of the first housing according to an embodiment of the present utility model;

[0031] Figure 9 a schematic structural view of the first housing according to an embodiment of the present utility model from another perspective;

[0032] Figure 10 a schematic structural view of the second housing according to an embodiment of the present utility model;

[0033] Figure 11 a schematic structural view of the second housing according to an embodiment of the present utility model from another perspective.

[0034] Reference numerals:

[0035] volute assembly 100, accommodation cavity 101, air inlet 102, air outlet 103, positioning pin 104, positioning hole 105, sealing groove 106, sealing protrusion 107, first housing 110, first accommodation groove 111, first groove 112, second arc surface 113, second housing 120, second accommodation groove 121, second groove 122, fourth arc surface 123, card slot 124, insertion hole 125, locking member 200, first locking portion 210, first arc surface 211, connecting portion 220, second locking portion 230, third arc surface 231, abutting portion 240, filter cover 300, buckle 310, insertion portion 320. Detailed implementation manners

[0036] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0037] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0038] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, above, below, within, etc. are understood as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0039] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present utility model in combination with the specific content of the technical solution.

[0040] Referring to Figures 1 to 6 , according to the blower that is easy to disassemble and assemble according to the first aspect embodiment of the present utility model, the volute assembly 100 includes a first housing 110 and a second housing 120 that are detachably connected. The first housing 110 and the second housing 120 enclose to form a receiving cavity 101. The receiving cavity 101 has an air inlet 102 and an air outlet 103. Along the circumferential direction of the first housing 110, a plurality of first grooves 112 are provided at intervals on the outer side of the first housing 110. The notch of the first groove 112 faces away from the second housing 120. Along the circumferential direction of the second housing 120, a plurality of second grooves 122 are provided at intervals on the outer side of the second housing 120. The notch of the second groove 122 faces away from the first housing 110. The locking member 200 includes a first locking portion 210, a connecting portion 220, and a second locking portion 230 that are connected in sequence. The first locking portion 210 is partially received in the first groove 112 and can abut against the side wall of the first groove 112. The second locking portion 230 is partially received in the second groove 122 and can abut against the side wall of the second groove 122. The connecting portion 220 has elasticity, so that the first locking portion 210 and the second locking portion 230 can approach or move away from each other. In this way, it is possible to facilitate the installation or disassembly of the volute assembly 100, so as to facilitate the disassembly and assembly of the blower.

[0041] Specifically, one end of the connecting portion 220 is connected to the first locking portion 210, and the other end of the connecting portion 220 is connected to the second locking portion 230. The first locking portion 210 and the second locking portion 230 are disposed opposite to each other. When assembling the volute component 100, the end of the second locking portion 230 away from the connecting portion 220 can be first inserted into the second groove 122. Then, the connecting portion 220 is bent to increase the distance between the first locking portion 210 and the second locking portion 230, so as to insert the end of the first locking portion 210 away from the connecting portion 220 into the first groove 112. At this time, the connecting portion 220 rebounds, which can limit the separation of the first housing 110 and the second housing 120, prevent the end of the first locking portion 210 away from the connecting portion 220 from automatically withdrawing from the first groove 112, and prevent the end of the second locking portion 230 away from the connecting portion 220 from automatically withdrawing from the second groove 122. When disassembling the volute component 100, a tool such as a flat wrench is used to abut against the first locking portion 210 to pry out the first locking portion 210 from the first groove 112. The operation is simple, convenient and fast, which can facilitate the installation or disassembly of the volute component 100, so as to facilitate the disassembly and assembly of the fan.

[0042] It should be noted that when disassembling the volute component 100, a tool such as a flat wrench can also be used to pry out the second locking portion 230 from the second groove 122, which is not limited herein.

[0043] It should be pointed out that the first housing 110 is provided with a first receiving groove 111, and the second housing 120 is provided with a second receiving groove 121. The first receiving groove 111 and the second receiving groove 121 enclose a receiving cavity 101, which will not be elaborated herein.

[0044] It should be noted that the fan further includes a motor and an impeller. The output shaft of the motor is connected to the impeller to drive the impeller to rotate. The motor and the impeller are integrally installed in the receiving cavity 101 so that the range hood can extract oil fume, which will not be elaborated herein.

[0045] Refer to Figure 5 、 Figure 6 In some embodiments of the present invention, the locking member 200 further includes an abutting portion 240. The abutting portion 240 is connected to the end of the first locking portion 210 away from the connecting portion 220. The abutting portion 240 is spaced from the side of the first groove 112 away from the first locking portion 210, which can facilitate the maintenance personnel to install and disassemble the volute component 100.

[0046] Specifically, by providing the abutting portion 240, when assembling the first housing 110 and the second housing 120, the contact area between the abutting portion 240 and the flat wrench can be increased, so as to facilitate prying out the first locking portion 210 from the first groove 112. When disassembling the first housing 110 and the second housing 120, the maintenance personnel can manually press the abutting portion 240 to press the first locking portion 210 into the first groove 112, which can facilitate the maintenance personnel to install and disassemble the volute component 100.

[0047] Referring to Figures 5 to 7 , in some embodiments of the present invention, the connecting portion 220, the first locking portion 210, the second locking portion 230 and the abutting portion 240 are of an integral structure, which can reduce the number of molds to reduce the production and manufacturing cost of the molds, thereby reducing the production and manufacturing cost of the fan.

[0048] Specifically, the locking member 200 is a sheet metal part, and the connecting portion 220, the first locking portion 210, the second locking portion 230 and the abutting portion 240 can be formed integrally by sheet metal bending, which can reduce the number of molds to reduce the production and manufacturing cost of the molds, thereby reducing the production and manufacturing cost of the fan.

[0049] Of course, in some other specific embodiments, the connecting portion 220, the first locking portion 210, the second locking portion 230 and the abutting portion 240 can also be connected by welding, wherein the welding methods include but are not limited to resistance welding or laser welding, which will not be elaborated here.

[0050] Referring to Figure 8 , Figure 10 , in some embodiments of the present invention, a positioning structure is provided between the first housing 110 and the second housing 120, which can position the relative positions of the first housing 110 and the second housing 120 to facilitate the assembly of the first housing 110 and the second housing 120.

[0051] Referring to Figure 8 , Figure 10 , in some embodiments of the present invention, the positioning structure includes a positioning pin 104 provided on the second housing 120 and a positioning hole 105 provided on the first housing 110. The positioning pin 104 is received in the positioning hole 105 and can abut against the side wall of the positioning hole 105, which can position the relative positions of the first housing 110 and the second housing 120 to facilitate the assembly of the first housing 110 and the second housing 120.

[0052] It should be noted that the positions of the positioning pin 104 and the positioning hole 105 can also be interchanged, that is, the positioning pin 104 is provided on the first housing 110 and the positioning hole 105 is provided on the second housing 120, which will not be elaborated here.

[0053] It should be noted that the positioning structure can also be a structure in which a positioning shaft cooperates with a positioning groove, which will not be elaborated here.

[0054] Referring to Figure 9 、 Figure 11 In some embodiments of the present invention, one side of the first locking portion 210 facing the second locking portion 230 is a first arc surface 211. In the direction from the second locking portion 230 to the first locking portion 210, the first arc surface 211 is recessed. A second arc surface 113 is provided on the periphery of the notch of the first groove 112 close to the connecting portion 220. The first arc surface 211 and the second arc surface 113 match each other, which can reduce the resistance when the end of the first locking portion 210 away from the connecting portion 220 is inserted into the first groove 112, so as to facilitate the assembly of the first housing 110 and the second housing 120.

[0055] Specifically, after the end of the second locking portion 230 away from the connecting portion 220 is inserted into the second groove 122, the user can press the connecting portion 220, so that the end of the first locking portion 210 away from the connecting portion 220 moves in the direction close to the first groove 112. At this time, the end of the first locking portion 210 away from the connecting portion 220 abuts against the second arc surface 113, which can guide the end of the first locking portion 210 away from the connecting portion 220 into the first groove 112, and can reduce the resistance when the end of the first locking portion 210 away from the connecting portion 220 is inserted into the first groove 112, so as to facilitate the assembly of the first housing 110 and the second housing 120.

[0056] It should be noted that since one side of the first locking portion 210 facing the second locking portion 230 is the first arc surface 211, on the one hand, when the maintenance personnel use a flat wrench to push and press the abutting portion 240, the first locking portion 210 can generate a slight deformation, so that the first locking portion 210 can smoothly withdraw from the first groove 112, so as to facilitate the disassembly of the first housing 110 and the second housing 120. On the other hand, it can increase the structural strength of the first locking portion 210 to improve the service life of the locking member 200.

[0057] Referring to Figure 9 、 Figure 11 In some embodiments of the present invention, one side of the second locking portion 230 facing the first locking portion 210 is a third arc surface 231. In the direction from the first locking portion 210 to the second locking portion 230, the third arc surface 231 is recessed. A fourth arc surface 123 is provided on the periphery of the notch of the second groove 122 close to the connecting portion 220. The third arc surface 231 and the fourth arc surface 123 match each other, which can facilitate the installation or disassembly of the volute component 100.

[0058] Specifically, when assembling the volute component 100, after the end of the second locking portion 230 away from the connecting portion 220 is inserted into the second groove 122, since the third arc surface 231 contacts the fourth arc surface 123, the third arc surface 231 can rotate around the axis of the fourth arc surface 123. During the process of inserting the end of the first locking portion 210 away from the connecting portion 220 into the first groove 112, under the guidance of the third arc surface 231 and the fourth arc surface 123, the end of the first locking portion 210 away from the connecting portion 220 gradually approaches the first groove 112 until the end of the first locking portion 210 away from the connecting portion 220 is inserted into the first groove 112, which facilitates the installation of the volute component 100.

[0059] When disassembling the volute component 100, when the maintenance personnel use a flat wrench to pry out the end of the first locking portion 210 away from the connecting portion 220 from the first groove 112, the connecting portion 220 and the first locking portion 210 rotate around the axis of the fourth arc surface 123 to guide the end of the first locking portion 210 away from the connecting portion 220 to exit the first groove 112, which facilitates the disassembly of the volute component 100.

[0060] Refer to Figure 8 、 Figure 10 In some embodiments of the present invention, a sealing structure is provided between the first housing 110 and the second housing 120, which can seal the first housing 110 and the second housing 120 to prevent oil fume from escaping from the gap between the periphery of the notch of the first receiving groove 111 and the periphery of the notch of the second receiving groove 121 out of the receiving cavity 101.

[0061] In some embodiments of the present invention, the sealing structure includes a sealing groove 106 provided at the periphery of the notch of the first receiving groove 111 and a sealing protrusion 107 provided at the periphery of the notch of the second receiving groove 121. The sealing protrusion 107 is received in the sealing groove 106, which can seal the first housing 110 and the second housing 120 to prevent oil fume from escaping from the gap between the periphery of the notch of the first receiving groove 111 and the periphery of the notch of the second receiving groove 121 out of the receiving cavity 101.

[0062] Specifically, the sealing groove 106 extends along the circumferential direction of the first housing 110, the sealing protrusion 107 extends along the circumferential direction of the second housing 120, and the sealing protrusion 107 is received in the sealing groove 106, which can seal the first housing 110 and the second housing 120 to prevent oil fume from escaping from the gap between the periphery of the notch of the first receiving groove 111 and the periphery of the notch of the second receiving groove 121 out of the receiving cavity 101.

[0063] It should be noted that the positions of the sealing groove 106 and the sealing protrusion 107 can also be interchanged, that is, the sealing groove 106 is provided at the periphery of the notch of the second receiving groove 121, and the sealing protrusion 107 is provided at the periphery of the notch of the first receiving groove 111, which will not be elaborated here.

[0064] Of course, in some other specific embodiments, the sealing structure can also be a sealing ring, and the sealing ring is clamped between the periphery of the notch of the first receiving groove 111 and the periphery of the notch of the second receiving groove 121, which can also seal the first housing 110 and the second housing 120, and there is no limitation here.

[0065] Referring to Figure 2 , in some embodiments of the present utility model, a filter cover 300 is further included. Activated carbon is provided in the filter cover 300, and the activated carbon is used to filter oil fumes and odors. The filter cover 300 is covered on the air inlet 102 and is detachably connected to the second housing 120, which can provide a better user experience.

[0066] Specifically, a buckle 310 is provided on one side of the filter cover 300, and a plug-in portion 320 is provided on the opposite side of the filter cover 300. A plug-in hole 125 and a card slot 124 are provided on the inner wall of the air inlet 102. The plug-in hole 125 and the card slot 124 are arranged opposite to each other along the circumferential direction of the air inlet 102. The plug-in portion 320 is inserted into the plug-in hole 125, and the buckle 310 is received in the card slot 124 and can abut against the side wall of the card slot 124 to realize the detachable connection between the filter cover 300 and the second housing 120, which is convenient for installing or removing the filter cover 300.

[0067] The range hood according to the second aspect embodiment of the present utility model includes the blower that is convenient for disassembly and assembly in the first aspect embodiment of the present utility model, which can facilitate the installation or removal of the volute assembly 100, so as to facilitate the disassembly and assembly of the blower.

[0068] Specifically, when assembling the volute assembly 100, the end of the second locking portion 230 far from the connecting portion 220 can be first inserted into the second groove 122. Then, the connecting portion 220 is bent so that the distance between the first locking portion 210 and the second locking portion 230 increases, so as to insert the end of the first locking portion 210 far from the connecting portion 220 into the first groove 112. At this time, the connecting portion 220 rebounds, which can limit the separation of the first housing 110 and the second housing 120, prevent the end of the first locking portion 210 far from the connecting portion 220 from automatically withdrawing from the first groove 112, and prevent the end of the second locking portion 230 far from the connecting portion 220 from automatically withdrawing from the second groove 122. When disassembling the volute assembly 100, a tool such as a flat wrench is used to abut against the first locking portion 210, and the first locking portion 210 can be pried out of the first groove 112. The operation is simple, convenient and fast, which can facilitate the installation or removal of the volute assembly 100, so as to facilitate the disassembly and assembly of the blower.

[0069] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0070] The above has described this embodiment in detail with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiment, and various changes can be made without departing from the gist thereof within the knowledge scope of those of ordinary skill in the art.

Claims

1. A fan that is easy to disassemble and assemble, characterized in that: include: A volute assembly (100) comprises a first shell (110) and a second shell (120) which are detachably connected, wherein the first shell (110) and the second shell (120) enclose a receiving chamber (101), wherein the receiving chamber (101) has an air inlet (102) and an air outlet (103), wherein a plurality of first grooves (112) are arranged at intervals on the outer side of the first shell (110) along the circumference of the first shell (110), wherein the notches of the first grooves (112) face away from the second shell (120), and wherein a plurality of second grooves (122) are arranged at intervals on the outer side of the second shell (120) along the circumference of the second shell (120), wherein the notches of the second grooves (122) face away from the first shell (110); The locking member (200) comprises a first locking portion (210), a connecting portion (220) and a second locking portion (230) which are connected in sequence, wherein the first locking portion (210) is partially accommodated in the first groove (112) and can abut against the side wall of the first groove (112), and the second locking portion (230) is partially accommodated in the second groove (122) and can abut against the side wall of the second groove (122), and the connecting portion (220) is elastic so that the first locking portion (210) and the second locking portion (230) can approach or move away from each other.

2. The fan that is easy to assemble and disassemble according to claim 1, characterized in that: The locking member (200) further comprises an abutment portion (240), the abutment portion (240) being connected to an end of the first locking portion (210) away from the connecting portion (220), and the abutment portion (240) being spaced apart from a side of the first groove (112) away from the first locking portion (210).

3. The fan that is easy to assemble and disassemble according to claim 2, characterized in that: The connecting portion (220), the first locking portion (210), the second locking portion (230) and the abutting portion (240) are an integrated structure.

4. The fan that is easy to assemble and disassemble according to claim 1, characterized in that: A positioning structure is provided between the first shell (110) and the second shell (120).

5. The fan that is easy to assemble and disassemble according to claim 4, characterized in that: The positioning structure comprises a positioning pin (104) and a positioning hole (105), one of the positioning pin (104) and the positioning hole (105) is arranged on the first shell (110), and the other is arranged on the second shell (120), and the positioning pin (104) is accommodated in the positioning hole (105).

6. The fan that is easy to assemble and disassemble according to claim 1, characterized in that: The side of the first locking portion (210) facing the second locking portion (230) is a first arcuate surface (211), and the first arcuate surface (211) is recessed in the direction from the second locking portion (230) to the first locking portion (210). A second arcuate surface (113) is provided on the periphery of the notch of the first groove (112) close to the connecting portion (220), and the first arcuate surface (211) matches the second arcuate surface (113).

7. The fan that is easy to assemble and disassemble according to claim 1, characterized in that: The side of the second locking portion (230) facing the first locking portion (210) is a third arcuate surface (231), and the third arcuate surface (231) is recessed in the direction from the first locking portion (210) to the second locking portion (230). A fourth arcuate surface (123) is provided on the periphery of the notch of the second groove (122) close to the connecting portion (220), and the third arcuate surface (231) matches the fourth arcuate surface (123).

8. The fan that is easy to assemble and disassemble according to claim 1, characterized in that: The first shell (110) is provided with a first accommodating groove (111), and the second shell (120) is provided with a second accommodating groove (121); the first accommodating groove (111) and the second accommodating groove (121) are combined to form the accommodating cavity (101); a sealing structure is provided between the first shell (110) and the second shell (120), and the sealing structure is used to seal the first shell (110) and the second shell (120).

9. The fan that is easy to assemble and disassemble according to claim 8, characterized in that: The sealing structure comprises a sealing groove (106) and a sealing protrusion (107), one of the sealing groove (106) and the sealing protrusion (107) being arranged at the periphery of the notch of the first receiving groove (111), and the other being arranged at the periphery of the notch of the second receiving groove (121), and the sealing protrusion (107) being accommodated in the sealing groove (106).

10. A range hood, characterized in that: It comprises a fan that is easy to disassemble and assemble as described in any one of claims 1 to 9.

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