CN115653943A - Positioning structure and fan - Google Patents

Abstract

The application relates to a location structure and fan, a location structure for fixed first part and second part, the second part has the spacing groove, location structure includes: the second fixing piece is fixedly connected to the first part, the first fixing piece is movably inserted into the second fixing piece along a first direction, and the second part penetrates through the first fixing piece and the second fixing piece along a second direction perpendicular to the first direction; the first fixing part is provided with a clamping part and an anti-falling part clamped on the second fixing part; when the second part penetrates through the first fixing part, the second part is pushed against and enables the anti-falling part to be separated from the second fixing part, the first fixing part moves along the first direction, and the clamping part is in limit fit with the limiting groove. A fan comprises the positioning structure. The positioning structure and the fan can ensure that the second part and the first part are fastened in the axial direction and the circumferential direction, and the structural stability of the positioning structure is improved.

Description

Positioning structure and fan

Technical Field

The application relates to the technical field of fans, in particular to a positioning structure and a fan.

Background

At present, a first part of a fan is mostly fixed to a second part through a first part knob, the first part knob and the first part are fixed through axial pressure, no circumferential limiting effect is generated on the first part, and the first part is complex to disassemble and assemble. Different users 'installation pressure is different, and if user's installation pressure is too big can lead to first part knob smooth tooth, first part and second part can't be fixed firm, and balanced out of control when leading to first part to the screen panel shake problem appears in the messenger fan, and location structure's structural stability is relatively poor.

Disclosure of Invention

Accordingly, it is desirable to provide a positioning structure and a fan, which can solve the problem of poor structural stability of the conventional positioning structure.

A positioning structure is used for fixing a first part and a second part, wherein the second part is provided with a limiting groove, and the positioning structure comprises:

the second fixing piece is fixedly connected to the first part, the first fixing piece is movably inserted into the second fixing piece along a first direction, and the second part penetrates through the first fixing piece and the second fixing piece along a second direction perpendicular to the first direction;

the first fixing part is provided with a clamping part and an anti-falling part clamped on the second fixing part; when the second part is arranged on the first fixing part in a penetrating mode, the second part pushes the anti-falling part to enable the anti-falling part to be separated from the second fixing part, the first fixing part moves along the first direction, and the limiting part is in limiting fit with the limiting groove.

In the positioning structure, the first fixing piece is movably inserted into the second fixing piece along the first direction, and the anti-falling part of the first fixing piece is clamped on the second fixing piece, so that the first fixing piece and the second fixing piece can be effectively prevented from being separated, and meanwhile, the circumferential self-positioning of the second part and the first part is realized; through the spacing cooperation of spacing portion with the spacing groove, realize the axial positioning of second part and first part to make second part and first part fasten in axial and circumference, improve location structure's structural stability.

In one embodiment, the first fixing member has a first shaft hole for the second member to pass through, the locking portion is disposed on an inner wall of the first shaft hole, and the anti-disengaging portion is disposed outside the first shaft hole and opposite to the locking portion.

In one embodiment, the second fixing member is provided with a second shaft hole for the second component to pass through, the second shaft hole and the first shaft hole are at least partially overlapped in the second direction, and the anti-falling part is clamped in the second shaft hole and located on one side of the second component, which is far away from the limiting groove.

In one embodiment, the anti-slip portion includes a fixing plate and a fastening plate, which are vertically connected, the fixing plate is abutted against the second fixing member, and the fastening plate is inserted through and fastened to an inner wall of the second shaft hole.

In one embodiment, a driving surface is arranged on a side of the second member departing from the limiting groove, and when the second member is inserted into the first fixing member, the driving surface can push the anti-disengaging portion so that the anti-disengaging portion is disengaged from the second fixing member.

In one embodiment, the positioning structure further includes an elastic member, and the elastic member is disposed between the first fixing member and the second fixing member, so that the first fixing member elastically stretches along a first direction.

In one embodiment, a first position-limiting portion is disposed on a side of the first fixing member facing the second fixing member, a second position-limiting portion is disposed on a side of the second fixing member facing the first fixing member, and two ends of the elastic member elastically abut against the first position-limiting portion and the second position-limiting portion respectively.

In one embodiment, the second fixing member is provided with a cavity along a side surface in the first direction, the first fixing member is at least partially inserted into the cavity, a first clamping portion is arranged on the peripheral side of the first fixing member, a second clamping portion is arranged on the inner wall of the cavity, and the second clamping portion and the first clamping portion can be clamped with each other.

In one embodiment, the positioning structure further includes a pressing member fixed to the second fixing member and having a third shaft hole for the second component to pass through.

In one embodiment, a first positioning portion is disposed on a bottom side of the second fixing member, a positioning groove is disposed in the first positioning portion, and the pressing member is received in the positioning groove.

In one embodiment, a hub is arranged in the middle of the first part, a slot is formed in the hub, and a second positioning part inserted into the slot is arranged on the bottom side of the second fixing part.

In one embodiment, a first operation position is arranged on one side, away from the second fixing part, of the first fixing part, a second operation position is arranged on one side, away from the first fixing part, of the second fixing part, and the first operation position and the second operation position are a plurality of protruding ridges uniformly distributed along the second direction.

A fan comprises the positioning structure.

The fan enables the second component and the first component to be fastened in the axial direction and the circumferential direction, and the structural stability of the positioning structure is improved.

Drawings

FIG. 1 is a schematic view of a positioning structure according to an embodiment;

FIG. 2 is an enlarged view of a portion A of the positioning structure shown in FIG. 1;

FIG. 3 is a schematic view of the positioning structure of FIG. 1 with the second member in a first position;

FIG. 4 is a schematic view of the positioning structure of FIG. 1 with the second member in a second position;

FIG. 5 is a schematic view of the positioning structure of FIG. 1 with the second member in a third position;

FIG. 6 is a first cross-sectional view of the positioning structure of FIG. 1;

FIG. 7 is an exploded view of the positioning structure of FIG. 1;

FIG. 8 is a top view of the positioning structure of FIG. 7;

FIG. 9 is an assembled cross-sectional view of the positioning structure of FIG. 7;

fig. 10 is an assembled top view of the positioning structure of fig. 7.

Reference numerals are as follows:

100. a first member; 101. a slot; 102. installing the shaft hole; 200. a second component; 201. a limiting groove; 202. a drive face; 300. a positioning structure; 310. a first fixing member; 311. a clamping part; 312. a retaining part; 312a, a fixing plate; 312b, a buckle plate; 313. a first shaft hole; 314. a first limiting part; 315. a first clamping part; 316. a first operation position; 320. a second fixing member; 321. a second shaft hole; 322. a second limiting part; 323. a cavity; 324. a second clamping part; 325. a first positioning portion; 326. a second positioning portion; 327. a second operation position; 330. an elastic member; 400. a compression member; 401. a third shaft hole.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiment in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and therefore the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "initially", "connected", "secured", and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, an embodiment of a fan includes a positioning structure 300.

Specifically, the fan further includes a body, a head, a first member 100 and a second member 200, the head is fixed to a top end of the body, the first member 100 and the second member 200 are disposed on the head and used for driving an airflow to flow, and the positioning structure 300 is used for fixing the first member 100 and the second member 200.

In the above embodiment, the first member 100 is a fan blade, and the second member 200 is a motor shaft, and the first member 100 is driven to rotate by the rotation of the motor shaft. Specifically, the positioning structure includes a motor, the motor includes a body and a motor shaft connected to the body, the motor shaft is fixedly connected to the first component 100, the type of the motor may be a servo motor, a stepping motor or other types, and the type of the motor is not particularly limited herein. In other embodiments, the second member 200 may be another type of rotatable drive shaft, and the first member 100 and the second member 200 may be another member.

Referring to fig. 1 to 3, in an embodiment, a positioning structure 300 is used to fix a second component 200 and a first component 100, and the second component 200 has a limiting groove 201. The positioning structure 300 includes a first fixing member 310 and a second fixing member 320, the second fixing member 320 is fixedly connected to the first member 100, the first fixing member 310 is movably inserted into the second fixing member 320 along a first direction, and the second member 200 is inserted into the first fixing member 310 and the second fixing member 320 along a second direction perpendicular to the first direction.

Referring to fig. 3, the first fixing member 310 has a positioning portion 311 and an anti-falling portion 312 clamped to the second fixing member 320; when the second part 200 penetrates through the first fixing member 310, the second part 200 pushes the anti-falling portion 312 and makes it separate from the second fixing member 320, the first fixing member 310 moves along the first direction, and the positioning portion 311 is in spacing fit with the limiting groove 201.

It should be noted that the first direction is the X direction shown in fig. 3, i.e., the radial direction of the second member 200. The second direction is the Y direction shown in fig. 3, i.e., the axial direction of the second member 200.

In the above positioning structure, the first fixing member 310 is movably inserted into the second fixing member 320 along the first direction, and the anti-falling portion 312 of the first fixing member 310 is clamped in the second fixing member 320, so that the first fixing member 310 and the second fixing member 320 can be effectively prevented from being separated, and meanwhile, the circumferential self-positioning of the second component 200 and the first component 100 is realized; the axial positioning of the second component 200 and the first component 100 is realized through the limiting matching of the limiting part 311 and the limiting groove 201, so that the second component 200 and the first component 100 are fastened in the axial direction and the circumferential direction, and the structural stability of the positioning structure is improved.

Specifically, referring to fig. 3, the first fixing member 310 has a first shaft hole 313 for the second component 200 to pass through, the locking portion 311 is disposed on an inner wall of the first shaft hole 313, and the anti-releasing portion 312 is disposed outside the first shaft hole 313 and opposite to the locking portion 311.

With the above arrangement, the engaging portion 311 and the disengagement preventing portion 312 do not interfere with each other, and the space utilization rate of the first fixture 310 can be improved.

In this embodiment, the cross-section of the second member 200 is D-shaped, and accordingly, the first shaft hole 313 is also D-shaped to fit the second member 200. In other embodiments, the cross-section of the second member 200 may also be square or have other shapes, and accordingly, the first axial hole 313 may also be a square hole or a hole having other shapes.

In some embodiments of the present application, referring to fig. 3, the second fixing element 320 is provided with a second shaft hole 321 for the second component 200 to pass through, the second shaft hole 321 and the first shaft hole 313 are at least partially overlapped in the second direction, and the anti-falling portion 312 is clamped in the second shaft hole 321 and is located on a side of the second component 200 away from the limiting groove 201.

Here, the second shaft hole 321 and the first shaft hole 313 at least partially overlap in the second direction, and it is understood that the second shaft hole 321 and the first shaft hole 313 are completely or partially in communication in the second direction. In this way, the second member 200 can be smoothly inserted through the second shaft hole 321 and the first shaft hole 313 in the second direction, and the second member 200 cannot be mounted because the second shaft hole 321 and the first shaft hole 313 are not in conduction.

In the present embodiment, the second member 200 has a D-shaped cross-section, and accordingly, the second shaft hole 321 has a D-shaped hole to be fitted to the second member 200. In other embodiments, the cross-section of the second member 200 may also be square or have other shapes, and correspondingly, the second shaft hole 321 may also be a square hole or a hole with other shapes.

In the present embodiment, the inner diameters of the second shaft hole 321 and the first shaft hole 313 are larger than the outer diameter of the second member 200, so that the second member 200 can pass through the second shaft hole 321 and the first shaft hole 313.

In some embodiments of the present application, referring to fig. 3 and fig. 6, the anti-releasing portion 312 includes a fixing plate 312a and a fastening plate 312b that are vertically connected, the fixing plate 312a is abutted against the second fixing member 320, and the fastening plate 312b is inserted through and fastened to an inner wall of the second shaft hole 321.

Through the above arrangement, the fastening plate 312b is inserted into and clamped on the inner wall of the second shaft hole 321, so that the anti-slip portion 312 can be better clamped in the second shaft hole 321.

In the present embodiment, the fixing plate 312a and the fastening plate 312b are integrally formed, and both have fixed sizes, so that they have good integrity and high mechanical strength, and are convenient for quick assembly and disassembly. In other embodiments, the fixing plate 312a may also be a telescopic structure to change the size of the fixing plate 312a so as to fit the second shaft holes 321 with different sizes.

In some embodiments of the present application, referring to fig. 3, a driving surface 202 is disposed on a side of the second part 200 departing from the limiting groove 201, and when the second part 200 is inserted into the first fixing member 310, the driving surface 202 can push against the anti-separation portion 312 to separate the anti-separation portion 312 from the second fixing member 320.

For example, referring to fig. 3, at the start of installation, the second member 200 is located at the first position, and the driving surface 202 of the second member 200 is located on the left side of the first shaft hole 313; referring to fig. 4, the second member 200 is moved rightward in the second direction to the second position, and the driving surface 202 of the second member 200 abuts against the retaining portion 312; referring to fig. 5, the second member 200 is moved to the third position, and at this time, the driving surface 202 pushes the anti-falling portion 312 and disengages the anti-falling portion 312 from the second fixing member 320, and the first fixing member 310 moves downward along the first direction, and the limiting portion 311 is engaged in the limiting groove 201.

Specifically, referring to fig. 3, the driving surface 202 is a stepped surface or an inclined surface that expands outward away from the central axis of the second member 200. Here, the central axis direction of the second member 200 is also the Y direction shown in fig. 3. Thus, the second member 200 can smoothly pass through the first fixing member 310, and the first fixing member 310 is driven to move by pushing against the driving surface 202 during the threading process.

In this embodiment, the driving surface 202 is a smooth plane. In other embodiments, the driving surface 202 may be curved, or a plurality of protrusions may be provided on the driving surface 202 to increase the friction between the driving surface 202 and the second member 200 when the second member 200 abuts the driving surface 202.

Referring to fig. 3, the positioning structure 300 further includes an elastic member 330, and the elastic member 330 is disposed between the first fixing member 310 and the second fixing member 320, so that the first fixing member 310 elastically stretches along the first direction.

Through the above arrangement, the second component 200 penetrates through the first fixing member 310 and the second fixing member 320 along the second direction, and the first fixing member 310 can elastically stretch along the first direction, so that the circumferential self-positioning of the second component 200 and the first component 100 is realized.

For example, referring to fig. 3, at the beginning of installation, the second member 200 is in the first position, the driving surface 202 of the second member 200 is located at the left side of the first shaft hole 313, and the elastic member 330 is in a compressed state; referring to fig. 4, the second member 200 is moved rightwards along the second direction to the second position, the driving surface 202 of the second member 200 abuts against the anti-falling portion 312, and the elastic member 330 is in a compressed state; referring to fig. 5, the second member 200 moves to the third position continuously, the driving surface 202 pushes the anti-separation portion 312 and separates the anti-separation portion 312 from the second fixing member 320, and the elastic member 330 drives the first fixing member 310 to move downward along the radial direction of the second member 200 to allow the limiting portion 311 to be clamped in the limiting groove 201 because the elastic member 330 is about to recover its original shape.

Optionally, the elastic member 330 is a spring or a leaf spring.

In this embodiment, the number of the elastic members 330 is one. In other embodiments, the number of the elastic elements 330 may also be at least two, and all the elastic elements 330 are arranged between the first fixing element 310 and the second fixing element side by side along the first direction.

In some embodiments of the present application, referring to fig. 7 to fig. 9, a first position-limiting portion 314 is disposed on a side of the first fixing element 310 facing the second fixing element 320, a second position-limiting portion 322 is disposed on a side of the second fixing element 320 facing the first fixing element 310, and two ends of the elastic element 330 elastically abut against the first position-limiting portion 314 and the second position-limiting portion 322, respectively.

Through the above arrangement, two ends of the elastic member 330 are respectively limited by the first limiting portion 314 and the second limiting portion 322, so that the elastic member 330 is effectively prevented from moving in the stretching process.

Specifically, in the present embodiment, one of the first position-limiting portion 314 and the second position-limiting portion 322 is a position-limiting post, and the other of the first position-limiting portion 314 and the second position-limiting portion 322 is a fixing groove. Wherein, the fixed column is cylindric, and the fixed slot is also the cylinder groove.

In other embodiments, the fixing posts may also be prism-shaped or in other shapes, and the fixing grooves may also be prism-shaped or in other shapes.

In the present embodiment, the number of the elastic elements 330 is one, and accordingly, the first position-limiting portion 314 and the second position-limiting portion 322 are both one. In other embodiments, the number of the elastic elements 330 may also be at least two, and accordingly, the number of the first position-limiting portions 314 and the second position-limiting portions 322 is corresponding to the number of the elastic elements 330.

In this embodiment, one end of the elastic element 330 is detachably connected to the first position-limiting portion 314, and the other end of the elastic element 330 is detachably connected to the second position-limiting portion 322. For example, a bump is disposed on the first position-limiting portion 314, and one end of the elastic element 330 is sleeved on the first position-limiting portion 314 and is limited on the first position-limiting portion 314 by the bump; for another example, a fixing hole is formed on the first position-limiting portion 314, and a hook is formed at one end of the elastic member 330 so as to penetrate through the fixing hole. In other embodiments, one end of the elastic element 330 and the first position-limiting portion 314, and the other end of the elastic element 330 and the second position-limiting portion 322 may be non-detachably connected. For example, one end of the elastic element 330 is connected to the first position-limiting portion 314, and the other end of the elastic element 330 is connected to the second position-limiting portion 322 by welding or riveting.

In some embodiments of the present application, referring to fig. 9, a containing cavity 323 is formed in a side surface of the second fixing element 320 along the first direction, at least a portion of the first fixing element 310 is inserted into the containing cavity 323, a first clamping portion 315 is disposed on a peripheral side of the first fixing element 310, a second clamping portion 324 is disposed on an inner wall of the containing cavity 323, and the second clamping portion 324 and the first clamping portion 315 can be clamped with each other.

Here, the first fixing member 310 is at least partially inserted into the cavity 323, and it is understood that the first fixing member 310 is partially located in the cavity 323 and the other portion of the first fixing member 310 is located outside the cavity 323. Through the above arrangement, the first fixing member 310 and the second fixing member 320 are matched with each other in an inserting manner along the first direction, so that the space utilization rate of the first fixing member 310 can be improved, and the positioning structure 300 is more compact and is convenient to disassemble and assemble quickly.

Specifically, referring to fig. 9 and 7, the cavity 323 penetrates through the periphery of the second fixing element 320 along the first direction and has an opening, and the first fixing element 310 is inserted into the cavity 323 through the opening, so as to realize the insertion and engagement of the first fixing element 310 and the second fixing element 320.

In the present embodiment, one of the first clip portion 315 and the second clip portion 324 is a clip, and the other of the first clip portion 315 and the second clip portion 324 is a slot. Wherein, the clamping groove is rectangular. In other embodiments, the slot may also be circular or other shapes.

For example, referring to fig. 9, two opposite sides of the first fixing member 310 are provided with a buckle, two opposite sides of the cavity wall of the cavity 323 are provided with a slot, and when the first fixing member 310 is inserted into the cavity 323, the buckle is clamped in the slot. Since the first fixing member 310 is movable in the first direction relative to the second fixing member 320, the clip can also move in the first direction.

In this embodiment, the number of the first clamping portions 315 and the number of the second clamping portions 324 are not limited to one, that is, the number of the first clamping portions 315 and the number of the second clamping portions 324 may be at least two, and all the first clamping portions 315 and all the second clamping portions 324 may be arranged side by side or in other arrangements.

In some embodiments of the present application, please refer to fig. 10 and fig. 7, the positioning structure further includes a pressing member 400, and the pressing member 400 is fixed to the second fixing member 320 and has a third shaft hole 401 for the second component 200 to pass through.

It can be understood that the pressing member 400 is made of rubber, the second component 200 penetrates through the third shaft hole 401 of the pressing member 400, and the compression amount of the rubber is fixed, so that the axial pressure generated by the pressing member 400 on the first component 100 is uniformly fixed, and the first component 100 can be prevented from being skewed.

Here, the third shaft hole 401, the second shaft hole 321, and the first shaft hole 313 at least partially overlap in the second direction.

In some embodiments of the present application, please refer to fig. 10, a first positioning portion 325 is disposed on a bottom side of the second fixing member 320, a positioning groove is disposed in the first positioning portion 325, and the pressing member 400 is disposed in the positioning groove.

In this embodiment, referring to fig. 1, the bottom side of the second fixing member 320 is provided with two first positioning portions 325, and the pressing member 400 is accommodated in the two positioning grooves. The pressing member 400 is annular, and the first positioning portion 325 is in the shape of a long arc. In other embodiments, the first positioning portion 325 may also be in the shape of a dot or other shapes.

In some embodiments of the present application, please refer to fig. 2, the first member 100 has a hub in the middle, the hub is provided with a slot 101, and the bottom side of the second fixing member 320 is provided with a second positioning portion 326 inserted into the slot 101.

Through the arrangement, the first component 100 and the second fixing piece 320 can be detachably connected, so that the disassembly and the assembly are convenient.

Here, the middle part of the hub is further provided with a mounting shaft hole 102 for the second member 200 to pass through.

In the present embodiment, the second positioning portion 326 has a long arc shape, and accordingly, the slot 101 also has an arc hole to fit the second positioning portion 326. In other embodiments, the second positioning portion 326 may also be in a round shape, and correspondingly, the slot 101 may also be in a round shape.

In this embodiment, the number of the second positioning portions 326 is two, the two second positioning portions 326 are disposed opposite to each other, the number and the positions of the slots 101 and the second positioning portions 326 are disposed in a one-to-one correspondence, and all the second positioning portions 326 and all the first positioning portions 325 are distributed at the periphery of the second shaft hole 321 at intervals. In other embodiments, the number of the second positioning portions 326 may also be at least three, and at least two second positioning portions 326 may also be inserted into each slot 101.

In the present embodiment, the second positioning portion 326, the first positioning portion 325 and the second fixing member 320 are integrally formed, so that the integrity is good and the rapid assembly is facilitated.

In some embodiments of the present application, referring to fig. 3, a first operation position 316 is disposed on a side of the first fixing member 310 away from the second fixing member 320, a second operation position 327 is disposed on a side of the second fixing member 320 away from the first fixing member 310, and the first operation position 316 and the second operation position 327 are a plurality of protruding ridges uniformly distributed along the second direction.

Specifically, two fingers are respectively placed on the first operation position 316 and the second operation position 327, the two fingers exert opposite force to compress the elastic member 330, the limiting portion 311 is separated from the limiting groove 201 of the second component 200, then the positioning structure 300 is taken out, the dismounting of the positioning structure 300 is completed, and the first component 100 can be dismounted on the second component 200 without being fixed after the dismounting.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (13)

1. A positioning structure (300) for fixing a first member (100) and a second member (200), the second member (200) having a limiting groove (201), the positioning structure (300) comprising:

the first fixing piece (310) and the second fixing piece (320), the second fixing piece (320) is fixedly connected to the first component (100), the first fixing piece (310) is movably inserted into the second fixing piece (320) along a first direction, and the second component (200) penetrates through the first fixing piece (310) and the second fixing piece (320) along a second direction perpendicular to the first direction;

the first fixing part (310) is provided with a clamping part (311) and an anti-falling part (312) clamped on the second fixing part (320); when the second part (200) penetrates through the first fixing part (310), the second part (200) pushes the anti-falling part (312) and enables the anti-falling part to be separated from the second fixing part (320), the first fixing part (310) moves along the first direction, and the limiting part is in limiting fit with the limiting groove (201).

2. The positioning structure (300) according to claim 1, wherein the first fixing member (310) is provided with a first shaft hole (313) for the second member (200) to pass through, the locking portion (311) is provided on an inner wall of the first shaft hole (313), and the retaining portion (312) is provided outside the first shaft hole (313) and opposite to the locking portion (311).

3. The positioning structure (300) according to claim 2, wherein the second fixing member (320) is provided with a second shaft hole (321) for the second component (200) to pass through, the second shaft hole (321) and the first shaft hole (313) at least partially overlap in the second direction, and the anti-separation portion (312) is clamped in the second shaft hole (321) and located on a side of the second component (200) facing away from the limiting groove (201).

4. The positioning structure (300) according to claim 3, wherein the anti-separation portion (312) comprises a fixing plate (312 a) and a fastening plate (312 b) connected vertically, the fixing plate (312 a) abuts against the second fixing member (320), and the fastening plate (312 b) is disposed through and fastened to an inner wall of the second shaft hole (321).

5. The positioning structure (300) according to claim 3, wherein a driving surface (202) is disposed on a side of the second member (200) facing away from the limiting groove (201), and when the second member (200) is inserted into the first fixing member (310), the driving surface (202) can push the anti-falling portion (312) to separate the anti-falling portion (312) from the second fixing member (320).

6. The positioning structure (300) according to claim 1, wherein the positioning structure (300) further comprises an elastic member (330), the elastic member (330) is disposed between the first fixing member (310) and the second fixing member (320) to elastically expand and contract the first fixing member (310) along a first direction.

7. The positioning structure (300) according to claim 6, wherein a first position-limiting portion (314) is disposed on a side of the first fixing member (310) facing the second fixing member (320), a second position-limiting portion (322) is disposed on a side of the second fixing member (320) facing the first fixing member (310), and two ends of the elastic member (330) elastically abut against the first position-limiting portion (314) and the second position-limiting portion (322), respectively.

8. The positioning structure (300) according to claim 1, wherein a cavity (323) is formed in a side surface of the second fixing member (320) along the first direction, the first fixing member (310) is at least partially inserted into the cavity (323), a first clamping portion (315) is disposed on a peripheral side of the first fixing member (310), a second clamping portion (324) is disposed on an inner wall of the cavity (323), and the second clamping portion (324) and the first clamping portion (315) can be clamped with each other.

9. The positioning structure (300) according to claim 1, wherein the positioning structure (300) further comprises a pressing member (400), and the pressing member (400) is fixed to the second fixing member (320) and has a third shaft hole (401) for the second component (200) to pass through.

10. The positioning structure (300) according to claim 9, wherein the second fixing member (320) has a first positioning portion (325) at a bottom side thereof, the first positioning portion (325) has a positioning slot therein, and the pressing member (400) is received in the positioning slot.

11. The positioning structure (300) according to claim 1, wherein the first member (100) has a hub in the middle, the hub is provided with a slot (101), and the bottom side of the second fixing member (320) is provided with a second positioning portion (326) inserted into the slot (101).

12. The positioning structure (300) according to claim 1, wherein a first operation position (316) is disposed on a side of the first fixing member (310) away from the second fixing member (320), a second operation position (327) is disposed on a side of the second fixing member (320) away from the first fixing member (310), and the first operation position (316) and the second operation position (327) are a plurality of protruding ribs uniformly distributed along the second direction.

13. A fan, characterized in that it comprises a positioning structure (300) according to any one of claims 1-12.

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