Buckle structure and range hood

Abstract

The utility model discloses a buckle structure and a range hood. The buckle structure is used for installing a first to-be-assembled part to a second to-be-assembled part, the buckle structure comprises a guide sleeve and a clamping jaw part, a first avoiding structure is arranged on the side wall of the guide sleeve in a penetrating mode, the clamping jaw part is inserted into the guide sleeve in the first direction, an outwards-protruding elastic protruding part on the clamping jaw part is arranged in the first avoiding structure in a penetrating mode, and the elastic protruding part is inserted into the first avoiding structure in the first direction. And a first inclined surface part inclined towards the outer side of the guide sleeve and a second inclined surface part inclined towards the inner side of the guide sleeve are sequentially formed on the outer wall surface of the elastic convex part. The buckle structure is installed on the first to-be-assembled part, and the buckle structure can be arranged in the assembly hole of the second to-be-assembled part in a penetrating mode and achieve limiting, so that the disassembly and assembly process of the first to-be-assembled part and the second to-be-assembled part is simple and easy to operate, and the strength and stability of the first to-be-assembled part and the second to-be-assembled part after assembly are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, and in particular to a buckle structure and a range hood. Background Art

[0002] The range hood is an essential household appliance in the kitchen. It is usually installed above or beside the stove to absorb the fumes generated by the stove, thereby improving the cooking environment of the user in the kitchen. The range hood has a filter installed at the smoke outlet. The filter can separate the fumes as the first barrier to isolate the fumes. After a period of use, a large amount of oil stains will adhere to the filter, so it is necessary to remove the filter from the smoke outlet for cleaning.

[0003] At present, the main methods of fixing the filter include screw fixing, hardware buckle fixing and magnetic fixing. However, screw fixing requires the use of tools for disassembly and assembly, which is cumbersome and has low disassembly and assembly efficiency; the hardware buckle fixing with hardware buckle has a complex structure and high cost; the fixing strength of magnetic fixing is low and is prone to accidental detachment. Therefore, how to propose a filter fixing structure with simple structure, easy disassembly and assembly, and stable connection is a technical problem that needs to be solved urgently. Utility Model Content

[0004] The first object of the utility model is to provide a buckle structure, which has a simple structure, can achieve a stable connection between two parts to be assembled, and makes it easy to assemble and disassemble the two parts to be assembled.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A snap-fit ​​structure is used to install a first part to be assembled on a second part to be assembled, and the snap-fit ​​structure includes: a guide sleeve, a first avoidance structure is penetrated on the side wall of the guide sleeve; a claw member, the claw member is inserted into the guide sleeve along a first direction, the claw member includes an outwardly protruding elastic protrusion, the elastic protrusion is penetrated in the first avoidance structure, and along the first direction, a first inclined portion inclined toward the outside of the guide sleeve and a second inclined portion inclined toward the inside of the guide sleeve are sequentially formed on the outer wall surface of the elastic protrusion; wherein, the snap-fit ​​structure can be installed on the first part to be assembled, and the snap-fit ​​structure can be penetrated in the assembly hole of the second part to be assembled and realize limiting.

[0007] Preferably, the first avoidance structure is a spring sheet hole, the elastic protrusion is a spring sheet structure, and the buckle structure passes through the assembly hole by squeezing the spring sheet structure.

[0008] Preferably, the elastic protrusion includes a first elastic piece and a second elastic piece connected at an angle, an outer wall surface of the first elastic piece is the first inclined portion, and an outer wall surface of the second elastic piece is the second inclined portion.

[0009] Preferably, the claw member further comprises a mounting portion, one end of the elastic protrusion is connected to the mounting portion, and the mounting portion is detachably connected to the guide sleeve.

[0010] Preferably, a protruding structure is provided on one of the guide sleeve and the mounting portion, and a second avoidance structure is provided on the other, and the protruding structure is limited at the second avoidance structure.

[0011] Preferably, the protruding structure is an insert, the second avoidance structure is a limiting notch, and the insert is limited in the limiting notch; or, the protruding structure is a block, the second avoidance structure is a limiting hole, and the block is limited in the limiting hole.

[0012] Preferably, the insert is riveted into the limiting notch.

[0013] Preferably, the number of the protruding structures and the second avoiding structures are both plural and are arranged in one-to-one correspondence.

[0014] Preferably, the claw member also includes a mounting portion, one end of the elastic protrusion is connected to the mounting portion, a plurality of the elastic protrusions are provided, and the plurality of the elastic protrusions are spaced apart in the circumferential direction of the mounting portion; a plurality of the first avoidance structures are provided, and the plurality of the first avoidance structures are spaced apart in the circumferential direction of the guide sleeve, and are plugged into the plurality of the elastic protrusions one-to-one.

[0015] Preferably, the mounting portion forms a first mounting position between two adjacent elastic protrusions, and at least one of a second avoidance structure and a protruding structure is provided at the first mounting position; the guide sleeve is circumferentially provided with a plurality of second mounting positions, and each of the second mounting positions is provided with at least the other of the second avoidance structure and the protruding structure; wherein the protruding structure on the guide sleeve is used for limiting connection with the second avoidance structure on the mounting portion, and the protruding structure on the mounting portion is used for limiting connection with the second avoidance structure on the guide sleeve.

[0016] Preferably, one end of the guide sleeve forms a socket for the claw member to be inserted into, and the end of the guide sleeve away from the socket forms a guide end.

[0017] Preferably, the guide end is a cone-shaped structure.

[0018] Preferably, the claw member further comprises a mounting portion, one end of the elastic protrusion is connected to the mounting portion, and the mounting portion is provided with a mounting hole for connecting with the first to-be-assembled member.

[0019] The second object of the utility model is to provide a range hood, the filter screen of which can not only be stably assembled to the casing, but also be easy to assemble and disassemble from the casing.

[0020] To achieve this purpose, the utility model adopts the following technical solutions:

[0021] A range hood comprises a filter, a casing and the above-mentioned buckle structure, wherein the filter is a first component to be assembled; and / or the casing is a second component to be assembled.

[0022] Preferably, a plurality of the snap-fit ​​structures are provided on the filter screen, a plurality of assembly holes are provided on the casing, and the plurality of the snap-fit ​​structures are arranged in one-to-one correspondence with the plurality of assembly holes.

[0023] Beneficial effects of the utility model:

[0024] The buckle structure provided by the utility model is used to install the first to-be-assembled part on the second to-be-assembled part, the buckle structure includes a guide sleeve and a claw part, the side wall of the guide sleeve is provided with a first avoidance structure, the claw part is inserted into the guide sleeve along a first direction, the claw part includes an outwardly convex elastic protrusion, the elastic protrusion is inserted into the first avoidance structure, along the first direction, the outer wall surface of the elastic protrusion is sequentially formed with a first inclined surface inclined toward the outer side of the guide sleeve and a second inclined surface inclined toward the inner side of the guide sleeve. The buckle structure is installed on the first to-be-assembled part, and the buckle structure can be inserted into the assembly hole of the second to-be-assembled part and realize position limiting, so that not only the disassembly and assembly process of the first to-be-assembled part and the second to-be-assembled part are simple and easy to operate, but also the strength and stability of the first to-be-assembled part and the second to-be-assembled part after assembly are improved.

[0025] The range hood provided by the utility model comprises a filter, a casing and a snap-on structure, wherein the filter is snap-connected to an assembly hole of the casing via the snap-on structure. By using the snap-on structure, not only is the strength and stability of the filter assembled to the casing high, but the filter can also be conveniently assembled and disassembled relative to the casing and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the buckle structure provided by the embodiment of the utility model at a certain viewing angle;

[0027] Figure 2 is a schematic diagram of the buckle structure provided by an embodiment of the utility model at another viewing angle;

[0028] Figure 3It is a bottom view of the buckle structure provided by an embodiment of the utility model;

[0029] Figure 4 It is a schematic diagram of the guide sleeve provided by the embodiment of the utility model at a certain viewing angle;

[0030] Figure 5 is a schematic diagram of the guide sleeve provided by the embodiment of the utility model from another viewing angle;

[0031] Figure 6 It is a schematic diagram of a clamping claw provided by an embodiment of the utility model at a certain viewing angle;

[0032] Figure 7 is a schematic diagram of the claw member provided by the embodiment of the utility model at another viewing angle;

[0033] Figure 8 It is an exploded view of the filter screen, housing and buckle structure of the range hood provided by the embodiment of the utility model;

[0034] Fig. 9 It is an assembly diagram of the filter screen, housing and buckle structure of the range hood provided by the embodiment of the utility model;

[0035] Fig.10 yes Fig. 9 Partial cross-sectional view along the AA direction.

[0036] In the figure:

[0037] 100, guide sleeve; 110, first avoidance structure; 120, protruding structure; 101, first main body; 102, second main body; 103, guide end;

[0038] 200, claw member; 201, first inclined portion; 202, second inclined portion; 210, elastic protrusion; 211, first spring sheet; 212, second spring sheet; 220, mounting portion; 221, second avoidance structure; 222, mounting hole; 10, snap structure; 20, filter screen; 30, housing; 31, assembly hole. DETAILED DESCRIPTION

[0039] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figures 1 to 10 As shown, the utility model provides a buckle structure 10, which can realize the assembly of two parts to be assembled. In order to facilitate the description of the specific structure of the buckle structure 10, the two parts to be assembled are defined as a first part to be assembled and a second part to be assembled. The buckle structure 10 can be used in the field of household appliances, for example, on a range hood to realize the assembly of two parts on the range hood. Of course, in addition to the field of household appliances, the buckle structure 10 provided by the utility model can also be used on other devices in other fields that need to realize the assembly of two parts, which will not be listed here one by one.

[0043] Specifically, Figures 1 to 7 As shown, the buckle structure 10 includes a guide sleeve 100 and a claw member 200. The guide sleeve 100 is used to install the claw member 200 and to guide the assembly of the buckle structure 10 and the assembly to be assembled. A chamber for accommodating the claw member 200 is formed in the guide sleeve 100. A socket for inserting the claw member 200 into the chamber is formed at one end of the guide sleeve 100. A first avoidance structure 110 is provided through the side wall of the guide sleeve 100. The claw member 200 is inserted into the guide sleeve 100 along a first direction. The first direction is as shown in FIG. Figure 1As shown in , the first direction is the depth direction of the chamber, the claw member 200 includes an outwardly convex elastic protrusion 210, and after the claw member 200 is inserted into the guide sleeve 100, the elastic protrusion 210 is inserted into the first avoidance structure 110. And along the first direction, the outer wall surface of the elastic protrusion 210 is sequentially formed with a first inclined surface 201 inclined toward the outside of the guide sleeve 100 and a second inclined surface 202 inclined toward the inside of the guide sleeve 100. The buckle structure 10 can be installed on the first to-be-assembled component, and the buckle structure 10 can be inserted into the assembly hole 31 of the second to-be-assembled component and realize position limiting.

[0044] It should be noted that the elastic protrusion 210 is made of a material that can be deformed under the action of external force, and has the ability to elastically deform under the action of external force. Therefore, the claw member 200 can enter the guide sleeve 100 by squeezing the elastic protrusion 210 to deform. Under the limitation of the guide sleeve 100, the elastic protrusion 210 can move to the first avoidance structure 110, and at least partially restore the deformation at the first avoidance structure 110 so that the elastic protrusion 210 is inserted into the first avoidance structure 110. When the elastic protrusion 210 is subjected to an external force radially inward along the guide sleeve 100 in the first avoidance structure 110, the elastic protrusion 210 can be deformed toward the inner side of the guide sleeve 100.

[0045] Furthermore, since the elastic protrusion 210 can undergo elastic deformation, the deformation of the elastic protrusion 210 can change the shape of the entire snap structure 10 and the maximum size of the cross section perpendicular to the first direction, so that the snap structure 10 can pass through the assembly hole 31 of the second part to be assembled more easily. Moreover, after the snap structure 10 is assembled with the second part to be assembled, there is a certain limiting effect between the two. This limiting effect can ensure that the first part to be assembled and the second part to be assembled will not be separated in the absence of external force or under the action of a small external force, thereby ensuring the assembly strength and assembly stability of the first part to be assembled and the second part to be assembled.

[0046] In detail, the process of assembling the first component to be assembled and the second component to be assembled using the snap-fit ​​structure 10 is as follows: first, install the snap-fit ​​structure 10 on the first component to be assembled; then, move the first component to be assembled so that the first component to be assembled and the snap-fit ​​structure 10 thereon are close to the second component to be assembled, until the snap-fit ​​structure 10 is close to and aligned with the assembly hole 31 of the second component to be assembled; finally, the snap-fit ​​structure 10 is passed through the assembly hole 31 by squeezing the elastic protrusion 210. At this time, the second inclined surface 202 of the elastic protrusion 210 is pressed against the inner wall surface of the assembly hole 31 and forms an extrusion force that enables the elastic protrusion 210 to move toward the inner side of the guide sleeve 100. After the elastic protrusion 210 enters the assembly hole 31, the elastic protrusion 210 at least recovers part of its deformation and moves to the outside of the guide sleeve 100, finally achieving a limited snap connection with the assembly hole 31. At this time, the first inclined surface 201 of the elastic protrusion 210 is pressed against the edge of the assembly hole 31. When it is necessary to disassemble the first component to be assembled and the second component to be assembled, force is applied to the first component to be assembled in the opposite direction of the first direction, so that the first inclined portion 201 of the elastic protrusion 210 presses against the inner wall of the assembly hole 31 and forms an extrusion force that causes the elastic protrusion 210 to move toward the inner side of the guide sleeve 100 again; when the largest part of the elastic protrusion 210 passes through the assembly hole 31, force is continued to be applied to the first component to be assembled in the opposite direction of the first direction, and the first component to be assembled and the second component to be assembled can be separated smoothly.

[0047] The snap-fit ​​structure 10 has a simple and compact structure. The snap-fit ​​structure 10 not only makes the disassembly and assembly process of the first component to be assembled and the second component to be assembled simple and easy to operate, but also improves the strength and stability of the first component to be assembled and the second component to be assembled after assembly. The setting of the first inclined portion 201 enables the elastic protrusion 210 to form a stable snap-fit ​​structure, and the setting of the second inclined portion 202 enables the elastic protrusion 210 to more easily enter the first avoidance structure 110 and the assembly hole 31.

[0048] In some embodiments, the claw member 200 is made of a thin plate elastic metal material, and optionally, the thin plate elastic metal material can be spring steel. Optionally, the elastic protrusion 210 is a spring sheet structure, and the buckle structure 10 passes through the assembly hole 31 by squeezing the spring sheet structure. In order to reduce the difficulty of the elastic protrusion 210 entering and exiting the first avoidance structure 110, in a specific embodiment, the first avoidance structure 110 is a long strip of spring sheet hole. Optionally, the spring sheet hole is extended along the axial direction of the guide sleeve 100, and optionally, the spring sheet hole is a rectangular hole, a waist-shaped hole or an elliptical hole. In a parallel embodiment, the first avoidance structure 110 is an avoidance groove, one end of which passes through one end of the guide sleeve 100, thereby forming an opening for the elastic protrusion 210 to enter and exit, and the avoidance groove includes at least a first groove section and a second groove section of different widths, the width of the first groove section is smaller than the width of the second groove section, the width of the first groove section is smaller than the width of the elastic protrusion 210, and the width of the second groove section is larger than the width of the elastic protrusion 210, part of the elastic protrusion 210 passes through the first groove section by extrusion, and recovers its deformation when it moves to the second groove section, and the remaining part of the elastic protrusion 210 remains in the first groove section to achieve limited fixation.

[0049] Continue to refer to Figure 4 and Figure 5 As shown, in some embodiments, a guide end 103 is formed at one end of the guide sleeve 100 away from the socket. By setting the guide end 103, not only the guide sleeve 100 as a whole is more regular and beautiful, but also the guide sleeve 100 has a vertical guiding function, which can provide a guiding function when the buckle structure 10 passes through the assembly hole 31. Optionally, the guide end 103 is conical. In one embodiment, the guide end 103 is in the shape of a truncated cone, and the cross-section of the guide end 103 in the direction perpendicular to the central axis of the guide sleeve 100 can be circular or polygonal.

[0050] Continue to refer to Figure 4 and Figure 5 As shown, the guide sleeve 100 also includes a cylindrical first main body 101 and a second main body 102, the first main body 101 is arranged between the second main body 102 and the guide end 103, and the end of the second main body 102 away from the first main body 101 forms a socket. In some embodiments, the outer diameter of the first main body 101 is smaller than the outer diameter of the second main body 102, and the inner diameter of the first main body 101 is smaller than the inner diameter of the second main body 102, so that the opening size of the socket can be increased, so that the claw member 200 can be more easily inserted into the guide sleeve 100 through the socket. In one embodiment, the first avoidance structure 110 is simultaneously arranged on the first main body 101 and the second main body 102, so that the elastic protrusion 210 can more easily enter the first avoidance structure 110.

[0051] In one embodiment, the guide sleeve 100 is an integrally formed structure, that is, the first main body 101, the second main body 102 and the guide end 103 are directly formed during the manufacturing process; in a parallel embodiment, the guide sleeve 100 is a combined structure formed by a plurality of split structures, and the connection methods include but are not limited to connection by a connector, welding, clamping, etc. It should be noted that the first main body 101, the second main body 102 and the guide end 103 can be three split structures, which are fixed by a connection method after being manufactured and formed separately; of course, the guide sleeve 100 can also be divided into several parts in the circumferential direction, such as two parts, three parts, four parts or more parts, each of which includes a part of the first main body 101, the second main body 102 and the guide end 103.

[0052] Continue to refer to Figure 6 and Figure 7 As shown, the claw member 200 further includes a mounting portion 220, which is used to mount the elastic protrusion 210, and one end of the elastic protrusion 210 is connected to the mounting portion 220. In one embodiment, the mounting portion 220 is a plate-like structure, and its plane is perpendicular to the first direction.

[0053] In some embodiments, the elastic protrusion 210 is a V-shaped spring clip structure, which includes a first spring clip 211 and a second spring clip 212 connected at an angle, and the end of the first spring clip 211 away from the second spring clip 212 is connected to the mounting portion 220, the outer wall surface of the first spring clip 211 is the first inclined portion 201, and the outer wall surface of the second spring clip 212 is the second inclined portion 202.

[0054] In some parallel embodiments, the elastic protrusion 210 includes a first elastic sheet 211, a connecting elastic sheet and a second elastic sheet 212 connected in sequence. The first elastic sheet 211 and the second elastic sheet 212 are located on the same side of the connecting elastic sheet and are both connected to the connecting elastic sheet at an obtuse angle. The outer wall surface of the first elastic sheet 211 is the first inclined portion 201, and the outer wall surface of the second elastic sheet 212 is the second inclined portion 202.

[0055] In some parallel embodiments, the elastic protrusion 210 is a triangular block, and the two sidewalls of the elastic protrusion 210 are respectively the first inclined portion 201 and the second inclined portion 202. In some parallel embodiments, the elastic protrusion 210 is a trapezoidal block, and the outer sidewall of the elastic protrusion 210 includes two inclined surfaces and a vertical surface, and the two inclined surfaces are respectively the first inclined portion 201 and the second inclined portion 202.

[0056] In order to improve the connection strength between the guide sleeve 100 and the claw member 200, in some embodiments, a plurality of elastic protrusions 210 are provided, and the plurality of elastic protrusions 210 are arranged at intervals in the circumferential direction of the mounting portion 220. Correspondingly, a plurality of first avoidance structures 110 are provided, and the plurality of first avoidance structures 110 are arranged at intervals in the circumferential direction of the guide sleeve 100, and are plugged in one-to-one with the plurality of elastic protrusions 210.

[0057] In a specific embodiment, three elastic protrusions 210 are provided, and the three elastic protrusions 210 are spaced apart in the circumferential direction of the mounting portion 220; three first avoidance structures 110 are provided, and the three first avoidance structures 110 are spaced apart in the circumferential direction of the guide sleeve 100; the three elastic protrusions 210 are plugged into the three first avoidance structures 110 in a one-to-one correspondence.

[0058] In another specific embodiment, two elastic protrusions 210 are provided, and the two elastic protrusions 210 are directly opposite to the mounting portion 220. Two first avoidance structures 110 are provided, and the two first avoidance structures 110 are directly opposite to each other in the circumferential direction of the guide sleeve 100. The two elastic protrusions 210 are plugged into the two first avoidance structures 110 in a one-to-one correspondence.

[0059] In another specific embodiment, four elastic protrusions 210 are provided, and the four elastic protrusions 210 are spaced apart in the circumferential direction of the mounting portion 220; four first avoidance structures 110 are provided, and the four first avoidance structures 110 are spaced apart in the circumferential direction of the guide sleeve 100; and the four elastic protrusions 210 are plugged into the four first avoidance structures 110 in a one-to-one correspondence.

[0060] Of course, in other embodiments, the number of the elastic protrusions 210 and the first avoidance structures 110 can be adjusted to more according to needs.

[0061] In order to further improve the connection strength between the claw member 200 and the guide sleeve 100, after the claw member 200 is inserted into the guide sleeve 100, the mounting portion 220 is detachably connected to the guide sleeve 100, thereby realizing the limited fixation of the guide sleeve 100 and the claw member 200. Such a setting can prevent the guide sleeve 100 and the claw member 200 from accidentally separating, thereby preventing the first assembly component from accidentally separating from the second assembly component.

[0062] In order to achieve the limiting fixation of the guide sleeve 100 and the claw member 200, in some embodiments, a protruding structure 120 is provided on one of the guide sleeve 100 and the mounting portion 220, and a second avoidance structure 221 is provided on the other, and the protruding structure 120 is riveted in the second avoidance structure 221, so as to achieve the fixing of the guide sleeve 100 and the claw member 200. In one embodiment, the protruding structure 120 is a plug, and the second avoidance structure 221 is a limiting notch. In another embodiment, the protruding structure 120 is a bump, and the second avoidance structure 221 is a limiting hole.

[0063] In one embodiment, the protruding structure 120 is disposed at the end of the guide sleeve 100 where the socket is formed, and the protruding structure 120 is extended in a direction parallel to the axial direction of the guide sleeve 100. The second avoidance structure 221 is disposed at the edge of the mounting portion 220 of the claw member 200. The protruding structure 120 passes through the second avoidance structure 221 in the first direction and then is bent and flattened to abut against the end surface of the mounting portion 220 away from the elastic protrusion 210. Figure 1 As shown, the maximum radial dimension of the mounting portion 220 is larger than the inner diameter of the socket, so that the edge of the mounting portion 220 can overlap the annular end face of the guide sleeve 100, and the radial dimension of the second avoidance structure 221 formed on the mounting portion 220 is smaller than the inner diameter of the socket, so that the protruding structure 120 can be inserted into the second avoidance structure 221.

[0064] In another embodiment, the protruding structure 120 is protruded from the side wall of the mounting portion 220 and extends radially outward, and the second avoidance structure 221 is arranged at the end of the guide sleeve 100 to form a socket. The protruding structure 120 passes through the second avoidance structure 221 and is bent and flattened to abut against the outer wall surface of the guide sleeve 100.

[0065] In another embodiment, a protruding structure 120 and a second avoidance structure 221 are provided at the end of the guide sleeve 100 where the port is formed, and a protruding structure 120 and a second avoidance structure 221 are also provided at the edge of the mounting portion 220. The protruding structure 120 on the guide sleeve 100 is used for riveting with the second avoidance structure 221 on the mounting portion 220, and the protruding structure 120 on the mounting portion 220 is used for riveting with the second avoidance structure 221 on the guide sleeve 100.

[0066] In order to improve the riveting strength, in some embodiments, the number of the protruding structures 120 and the second avoidance structures 221 are both multiple, and they are riveted one by one. In one embodiment, there are three protruding structures 120, and the three protruding structures 120 are arranged at intervals in the circumferential direction of the guide sleeve 100, and there are three second avoidance structures 221, and the three second avoidance structures 221 are arranged at intervals in the circumferential direction of the mounting portion 220. Of course, in other embodiments, the number of the protruding structures 120 and the second avoidance structures 221 can also be set to two, four or more according to needs.

[0067] In some embodiments, the mounting portion 220 forms a first mounting position between two adjacent elastic protrusions 210, and at least one of the second avoidance structure 221 and the protruding structure 120 is provided at the first mounting position. The guide sleeve 100 is provided with a plurality of second mounting positions along the circumference, and at least one of the second avoidance structure 221 and the protruding structure 120 is provided at each second mounting position. The protruding structure 120 on the guide sleeve 100 is used for riveting with the second avoidance structure 221 on the mounting portion 220, and the protruding structure 120 on the mounting portion 220 is used for riveting with the second avoidance structure 221 on the guide sleeve 100. Such a configuration makes the guide sleeve 100 and the claw member 200 compact in structure, reasonable in layout, and balanced in structural strength.

[0068] Of course, in addition to using the second avoidance structure 221 and the protruding structure 120 to rivet together to achieve the limiting fixation of the guide sleeve 100 and the claw member 200, other methods can also be used to achieve the limiting fixation of the guide sleeve 100 and the claw member 200, such as screw connection, snap connection, etc.

[0069] In order to realize the assembly of the buckle structure 10 and the first part to be assembled, in some embodiments, the mounting portion 220 is further provided with a mounting hole 222, and the buckle structure 10 and the first part to be assembled are assembled by passing a connecting piece such as a screw or an anchor through the mounting hole 222 and fixing it on the first part to be assembled. In some parallel embodiments, an assembly hole (not shown in the figure) is provided on the first part to be assembled, and a limited position surface (not shown in the figure) is formed on the outer wall surface of the guide sleeve 100, and the buckle structure 10 is passed through the assembly hole, and the limited position surface is limitedly abutted against the plate surface of the first part to be assembled, thereby realizing the assembly of the buckle structure 10 and the first part to be assembled.

[0070] The utility model also provides a range hood, such as Figures 8 to 10 As shown, the range hood comprises a filter 20, a housing 30 and the above-mentioned buckle structure 10, wherein the filter 20 is a first component to be assembled and the housing 30 is a second component to be assembled. By using the above-mentioned buckle structure 10, not only the strength and stability of the filter 20 assembled to the housing 30 are high, but also the filter 20 is convenient to assemble and disassemble relative to the housing 30 and easy to operate.

[0071] In some embodiments, the filter 20 is provided with a plurality of buckle structures 10, and the housing 30 is provided with a plurality of assembly holes 31, and the plurality of buckle structures 10 are provided in a one-to-one correspondence with the plurality of assembly holes 31. In one embodiment, two buckle structures 10 are provided on the filter 20, and two assembly holes 31 are provided on the housing 30, and the two buckle structures 10 are buckled in a one-to-one correspondence with the two assembly holes 31. Of course, in other embodiments, the number of buckle structures 10 and assembly holes 31 can also be flexibly adjusted according to needs.

[0072] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A buckle structure, characterized in that: The buckle structure is used to install the first to-be-assembled part onto the second to-be-assembled part, and the buckle structure includes: A guide sleeve (100), wherein a first avoidance structure (110) is provided through a side wall of the guide sleeve (100); A claw member (200), the claw member (200) being inserted into the guide sleeve (100) along a first direction, the claw member (200) comprising an elastic protrusion (210), the elastic protrusion (210) being inserted into the first avoidance structure (110), and a first inclined portion (201) inclined toward the outside of the guide sleeve (100) and a second inclined portion (202) inclined toward the inside of the guide sleeve (100) being sequentially formed on an outer wall surface of the elastic protrusion (210) along the first direction; The buckle structure can be installed on the first component to be assembled, and the buckle structure can be inserted into the assembly hole (31) of the second component to be assembled to achieve position limiting.

2. The buckle structure according to claim 1, characterized in that: The first avoidance structure (110) is a spring sheet hole, the elastic protrusion (210) is a spring sheet structure, and the buckle structure passes through the assembly hole (31) by squeezing the spring sheet structure.

3. The buckle structure according to claim 2, characterized in that: The elastic protrusion (210) comprises a first elastic piece (211) and a second elastic piece (212) connected at an angle, the outer wall surface of the first elastic piece (211) being the first inclined portion (201), and the outer wall surface of the second elastic piece (212) being the second inclined portion (202).

4. The buckle structure according to claim 1, characterized in that: The clamping claw member (200) further comprises a mounting portion (220), one end of the elastic protrusion (210) is connected to the mounting portion (220), and the mounting portion (220) is detachably connected to the guide sleeve (100).

5. The buckle structure according to claim 4, characterized in that: One of the guide sleeve (100) and the mounting portion (220) is provided with a protruding structure (120), and the other is provided with a second avoidance structure (221), and the protruding structure (120) is limited at the second avoidance structure (221).

6. The buckle structure according to claim 5, characterized in that: The protruding structure (120) is an insert, the second avoidance structure (221) is a limiting notch, and the insert is limited in the limiting notch; Alternatively, the protruding structure (120) is a convex block, the second avoidance structure (221) is a limiting hole, and the convex block is limited in the limiting hole.

7. The buckle structure according to claim 1, characterized in that: The claw member (200) further comprises a mounting portion (220), one end of the elastic protrusion (210) being connected to the mounting portion (220), a plurality of the elastic protrusions (210) being provided, and the plurality of the elastic protrusions (210) being arranged at intervals in the circumferential direction of the mounting portion (220); A plurality of the first avoidance structures (110) are provided, and the plurality of the first avoidance structures (110) are arranged at intervals in the circumferential direction of the guide sleeve (100) and are plugged into the plurality of elastic protrusions (210) in a one-to-one correspondence.

8. The buckle structure according to claim 7, characterized in that: The mounting portion (220) forms a first mounting position between two adjacent elastic protrusions (210), and at least one of a second avoidance structure (221) and a protruding structure (120) is provided at the first mounting position; The guide sleeve (100) is provided with a plurality of second installation positions along the circumferential direction, and at least one of the second avoidance structure (221) and the protruding structure (120) is provided at each of the second installation positions; The protruding structure (120) on the guide sleeve (100) is used for being connected in a limited position with the second avoidance structure (221) on the mounting portion (220), and the protruding structure (120) on the mounting portion (220) is used for being connected in a limited position with the second avoidance structure (221) on the guide sleeve (100).

9. The buckle structure according to any one of claims 1 to 8, characterized in that: One end of the guide sleeve (100) forms a socket for the claw member (200) to be plugged into, and one end of the guide sleeve (100) away from the socket forms a guide end (103).

10. The buckle structure according to any one of claims 1 to 3, characterized in that: The claw member (200) further comprises a mounting portion (220), one end of the elastic protrusion (210) being connected to the mounting portion (220), and a mounting hole (222) for connecting to the first component to be assembled is provided on the mounting portion (220).

11. A range hood, characterized in that: It comprises a filter screen (20), a housing (30) and the buckle structure according to any one of claims 1 to 10, wherein the filter screen (20) is a first component to be assembled; And / or, the housing (30) is a second component to be assembled.

12. The range hood according to claim 11, characterized in that: The filter screen (20) is provided with a plurality of buckle structures, the housing (30) is provided with a plurality of assembly holes (31), and the plurality of buckle structures and the plurality of assembly holes (31) are arranged in a one-to-one correspondence.

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