Rotary locking structure and folding fan

Abstract

The utility model provides a rotation locking structure and a folding fan, the rotation locking structure comprises a rotation seat, a fixed seat, a fixed lining ring, an elastic lining ring and a rotation rod, one end of the rotation seat is provided with a first socket cylinder, the fixed seat is provided with a sleeve, and one end of the sleeve is fixedly connected with a second socket cylinder; the rotating rod comprises a rod body and a rod seat; a plurality of supporting bridges are formed on the elastic lining ring, and the supporting bridges can generate elastic deformation in the axis direction of the elastic lining ring; locking clamping bases protruding towards the fixed lining ring are formed on the two centrosymmetric supporting bridges, the outer contour of each locking clamping base is in an arc shape, two locking hole sets are formed in the fixed lining ring in a centrosymmetric mode, each locking hole set comprises a plurality of locking holes, and the locking holes are used for being embedded into the locking clamping bases. According to the utility model, through the matching of the elastic lining ring and the fixed lining ring, the locking can be realized on the basis of realizing the relative position adjustment of the fixed seat and the rotating seat, and the assembly can be completed only by assembling in the axial direction, so that the installation process is simple and easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, concretely relates to a rotary locking structure and folding fan. BACKGROUND

[0002] In order to facilitate packing and storage, the fan in the prior art is usually designed as foldable, and is usually folded by rotation, and the base can rotate relative to the support. Since users have the need to adjust the angle of the fan, the rotation of the base and the support should also be able to lock the angle. For example, the patent document with the document number CN216922578U discloses a telescopic and foldable fan, which is provided with a adjusting groove similar to a gear in the through hole of the adjusting seat, and a spring-driven limiting table is arranged on the driving rod, and the locking is achieved by pushing the limiting table into the adjusting groove by the spring. However, the spring and the limiting table in the rotary locking parts need to be installed radially, and other main parts are axially assembled, so that the installation process is not simple. SUMMARY

[0003] The utility model embodiment provides a rotary locking structure and folding fan to solve the problem of poor structure design of the rotary locking structure of the folding fan in the prior art and not simple installation process.

[0004] To achieve the above-mentioned purpose, the utility model embodiment adopts the following technical scheme:

[0005] A rotary locking structure, comprising a rotating seat, a fixed seat, a fixed gasket, an elastic gasket and a rotating rod, one end of the rotating seat is provided with a first socket, the fixed seat is provided with a sleeve, one end of the sleeve is fixedly connected with a second socket coaxial with the sleeve;

[0006] The rotating rod comprises a rod body and a rod seat fixedly connected, the rod body and the rod seat are both cylindrical, and the rod body and the rod seat are coaxial;

[0007] When the rotary locking structure is installed, the elastic gasket passes through the rod body and is fixedly installed on the rod seat, the fixed gasket is fixedly installed in the second socket, the rod body passes through the fixed gasket and the sleeve and is inserted into the first socket, and is fixedly opposite to the first socket;

[0008] A plurality of support bridges uniformly distributed around the axis of the elastic gasket are formed on the elastic gasket, the support bridges are raised and close to the fixed gasket, and the support bridges can be elastically deformed in the axial direction of the elastic gasket;

[0009] The number of support bridges is even, two support bridges symmetrically arranged at the center are formed with locking seats raised towards the fixed gasket, and the outer contour of the locking seat is arc-shaped, two groups of locking hole groups are symmetrically arranged around the axis center of the fixed gasket, each locking hole group comprises a plurality of locking holes arranged at equal intervals, and the locking hole is used for embedding the locking seat.

[0010] Further, two first positioning holes are symmetrically arranged on the fixing ring around the axis center of the fixing ring, and a first positioning seat corresponding in position and number to the first positioning holes is arranged on the inner bottom surface of the second socket.

[0011] Further, the rod body is formed with an embedded slope at the end away from the rod base, so that the cross section of the rod body at the embedded slope is non-circular.

[0012] The inner side of the first socket is provided with a plurality of fixing teeth, and the contour formed by the plurality of fixing teeth is matched with the cross section contour of the rod body at the embedded slope.

[0013] Further, a plurality of first fixing holes are through arranged on the inner bottom of the first socket, and a plurality of second fixing holes are arranged on the end of the rod body away from the rod base.

[0014] Further, a fixing platform protruding towards the rod base is formed between the two adjacent support bridges on the elastic ring, a second positioning hole is arranged in the fixing platform, and a second positioning seat corresponding in position and number to the second positioning hole is arranged on the rod base.

[0015] Further, a third positioning hole is arranged on at least one support bridge, and a third positioning seat corresponding in position and number to the third positioning hole is further arranged on the rod base.

[0016] A folding fan comprises a base, a support, a fan body and the aforementioned rotating locking structure, the support is assembled into a U shape by an arc-shaped frame and two cantilevers;

[0017] One rotating locking structure is mounted on each side of the base, wherein the fixed seat is fixedly mounted in the interior of the base, and the rotating seat is fixedly connected with the end of the cantilever away from the arc-shaped frame;

[0018] The two sides of the fan body are rotatably connected with the two cantilevers of the support, and the mounting position of the fan body is close to the arc-shaped frame.

[0019] Further, the cantilever comprises a first cantilever and a second cantilever, wherein the first cantilever is hollow, so that the second cantilever can be inserted into the interior of the first cantilever and moved along the length direction of the first cantilever, so that the cantilever is telescopic.

[0020] The folding fan has the advantages that:

[0021] In the utility model, the relative position adjustment of the fixed seat and the rotating seat can be locked by the cooperation of the elastic ring and the fixing ring, and the assembly can be completed only by assembling in the axial direction, so that the installation process is simple. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of the folding fan.

[0023] Figure 2 exploded view of the rotating locking structure;

[0024] Figure 3 perspective view of the rotating base;

[0025] Figure 4 side view of the rotating base;

[0026] Figure 5 perspective view of the fixed base;

[0027] Figure 6 perspective view of the fixed base from another angle;

[0028] Figure 7 perspective view of the fixed grommet;

[0029] Figure 8 side view of the fixed grommet;

[0030] Figure 9 perspective view of the elastic grommet;

[0031] Figure 10 side view of the elastic grommet;

[0032] Figure 11 perspective view of the rotating rod;

[0033] Figure 12 side view of the rotating rod;

[0034] Figure 13 schematic view of the folding fan fully folded;

[0035] Figure 14 front view of the folding fan in cantilevered extension;

[0036] Figure 15 side view of the folding fan in cantilevered extension.

[0037] BRIEF DESCRIPTION OF THE DRAWINGS:

[0038] 1. Base; 2. Bracket; 21. Arc-shaped frame; 22. Cantilever; 221. First cantilever; 222. Second cantilever; 3. Fan body; 4. Rotary locking structure; 41. Rotating seat; 411. First socket; 412. Fixing tooth; 413. First fixing hole; 42. Fixing seat; 421. Sleeve; 4211. Second socket; 42111. First positioning seat; 43. Fixing bushing; 431. 432. Positioning hole; 432. Locking hole group; 4321. Locking hole; 44. Elastic bushing; 441. Fixing platform; 4411. Second positioning hole; 442. Support bridge; 443. Locking bracket; 444. Third positioning hole; 45. Rotating rod; 451. Rod body; 4511. Fitting slope; 4512. Second fixing hole; 452. Rod seat; 4521. Second positioning seat; 4522. Third positioning seat. Detailed Implementation

[0039] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0040] like Figure 1 As shown, this utility model embodiment provides a folding fan, which includes a base 1, a support 2, a fan body 3, and a rotation locking structure 4. The support 2 is assembled into a U-shape by an arc-shaped frame 21 and two cantilever arms 22. A rotation locking structure 4 is installed on each side of the base 1. The end of the cantilever arm 22 away from the arc-shaped frame 21 is rotatably connected to the rotation locking structure 4, allowing the support 2 to rotate around the base 1. The two sides of the fan body 3 are rotatably connected to the two cantilever arms 22 of the support 2, and the installation position of the fan body 3 is close to the arc-shaped frame 21. Through the design that the support 2 can rotate around the base 1, combined with the design that the fan body 3 can rotate within the support 2, the folding of the folding fan is achieved. Figure 13 As shown, in the fully folded state, both the base 1 and the fan body 3 can be rotated to be parallel to the extension direction of the cantilever 22, thus facilitating storage.

[0041] like Figures 2-12 As shown, this utility model embodiment provides a rotary locking structure 4, which includes a rotating seat 41, a fixed seat 42, a fixed bushing 43, an elastic bushing 44, and a rotating rod 45; wherein, the rotating seat 41 is used to connect the bracket 2 in the folding fan (specifically connected to the end of the cantilever 22 away from the arc frame 21), and a first socket 411 is provided at one end of the rotating seat 41; the fixed seat 42 is used to be fixedly installed inside the base 1, and a sleeve 421 is provided on the fixed seat 42, and a second socket 4211 coaxial with the sleeve 421 is fixedly connected at one end of the sleeve 421; the rotating rod 45 includes a rod body 451 and a rod seat 452 fixedly connected, both of which are cylindrical and coaxial;

[0042] When the rotation locking structure 4 is installed, the elastic ring 44 passes through the rod body 451 and is fixedly installed on the rod seat 452 (the rod seat 452 cannot rotate relative to the elastic ring 44), the fixed ring 43 is fixedly installed in the second socket 4211 (the fixed ring 43 cannot rotate relative to the second socket 4211), the rod body 451 passes through the fixed ring 43 and the sleeve 421 and is inserted into the first socket 411 and is fixed relative to the first socket 411 (at this time, the rod body 451, the elastic ring 44, the fixed ring 43, the sleeve 421 and the first socket 411 are coaxial);

[0043] As the main improvement of the utility model, a plurality of support bridges 442 which are uniformly distributed around the axis of the elastic ring 44 are formed on the elastic ring 44, the support bridges 442 are raised and close to the fixed ring 43, obviously, the support bridges 442 can be elastically deformed in the direction of the axis of the elastic ring 44; the number of the support bridges 442 is even (in one preferred embodiment, four support bridges 442 are formed on the elastic ring 44), wherein the two support bridges 442 which are centrally symmetrical are formed with locking seats 443 which are raised towards the fixed ring 43, and the outer contour of the locking seat 443 is arc-shaped, two groups of locking hole groups 432 which are centrally symmetrical around the axis center of the fixed ring 43 are arranged on the fixed ring 43, each locking hole group 432 comprises a plurality of locking holes 4321 which are distributed at equal intervals, and the locking hole 4321 is used for being fitted with the locking seat 443.

[0044] In the assembled state, the rotation locking structure 4 provided by the utility model, the locking seat 443 is fitted with the locking hole 4321, so that the elastic ring 44 and the fixed ring 43 cannot rotate relative to each other, but since the support bridges 442 can be elastically deformed in the direction of the axis of the elastic ring 44, and the outer contour of the locking seat 443 is arc-shaped, when an external force is applied to drive the elastic ring 44 and the fixed ring 43 to relatively twist, the support bridges 442 are compressed in the direction of the axis of the elastic ring 44 due to the extrusion of the locking seat 443, so that the locking seat 443 is separated from the locking hole 4321 and is slidably fitted into another locking hole 4321 which is adjacent to the separated locking hole 4321 in the locking hole group 432, and thereafter, if the external force is stopped, the relative position of the elastic ring 44 and the fixed ring 43 is fixed again; in the rotation locking structure 4 of the utility model, through the cooperation of the elastic ring 44 and the fixed ring 43, on the basis of being capable of adjusting the relative position of the fixed seat 42 and the rotating seat 41, locking can also be achieved, and assembly can be completed only by assembling in the axial direction, and the installation process is simple.

[0045] Specifically, to achieve the fixing of the fixed gasket 43 and the second socket 4211, the fixed gasket 43 is provided with two first positioning holes 431 which are symmetrically arranged around the center of the axis of the fixed gasket 43, and the inner bottom surface of the second socket 4211 is provided with first positioning seats 42111 corresponding to the positions and number of the first positioning holes 431 (obviously, the positions of the first positioning holes 431 are staggered with the locking hole groups 432).

[0046] Specifically, to achieve the fixing of the rotating rod 45 and the first socket 411, the rod body 451 is formed with an embedded slope surface 4511 at the end away from the rod base 452, so that the cross section of the rod body 451 at the embedded slope surface 4511 is non-circular; the inner side of the first socket 411 is provided with a plurality of fixing teeth 412, and the contour formed by the plurality of fixing teeth 412 is matched with the cross section contour of the rod body 451 at the embedded slope surface 4511, so that the rod body 451 can be inserted and installed into the first socket 411, and the rod body 451 and the first socket 411 cannot rotate relative to each other.

[0047] Further, to reinforce the fixed connection of the rod body 451 and the first socket 411, the inner bottom of the first socket 411 is provided with a plurality of first fixing holes 413, and the end of the rod body 451 away from the rod base 452 is provided with a plurality of second fixing holes 4512; after the rod body 451 is inserted and installed into the first socket 411, fasteners such as insertion bolts, screws, etc. are inserted through the first fixing holes 413 and the second fixing holes 4512 to fix the relative positions of the rod body 451 and the first socket 411.

[0048] Specifically, to achieve the fixing of the elastic gasket 44 and the rod base 452, the elastic gasket 44 is formed with a fixing platform 441 protruding towards the rod base 452 between two adjacent support bridges 442, the fixing platform 441 is provided with a second positioning hole 4411, and the rod base 452 is provided with a second positioning seat 4521 corresponding to the position and number of the second positioning hole 4411; the fixing of the elastic gasket 44 and the rod base 452 is achieved by embedding the second positioning seat 4521 into the second positioning hole 4411.

[0049] Further, to make the relative positions of the elastic gasket 44 and the rod base 452 constant when repeatedly assembled, at least one support bridge 442 is provided with a third positioning hole 444, and the rod base 452 is further provided with a third positioning seat 4522 corresponding to the position and number of the third positioning hole 444; the relative positions of the elastic gasket 44 and the rod base 452 when repeatedly assembled are made constant by embedding the third positioning seat 4522 into the third positioning hole 444.

[0050] In addition, considering the height adjustment requirement of the fan body 3 in the folding fan use scenario, such as Figures 13-15As shown, in an improved embodiment of the folding fan, the cantilever 22 is telescopic, the cantilever 22 comprises a first cantilever 221 and a second cantilever 222, wherein the first cantilever 221 is hollow, so that the second cantilever 222 can be inserted into the inside of the first cantilever 221 and move along the length direction of the first cantilever, thereby realizing the telescoping of the cantilever 22 to adjust the height of the fan body 3.

[0051] The above-mentioned embodiments only express the implementation manners of the present application, but cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that, for the ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A rotation locking structure (4) characterized by, The utility model relates to a rotating locking structure (4) of a rotating seat (41), a fixed seat (42), a fixed gasket (43), an elastic gasket (44) and a rotating rod (45), one end of the rotating seat (41) is provided with a first socket (411), the fixed seat (42) is provided with a sleeve (421), one end of the sleeve (421) is fixedly connected with the second socket (4211) coaxial with the sleeve (421); The rotating rod (45) includes a fixedly connected rod body (451) and a rod seat (452), the rod body (451) and the rod seat (452) are both cylindrical, and the rod body (451) and the rod seat (452) are coaxial; When the rotating locking structure (4) is installed, the elastic gasket (44) passes through the rod body (451) and is fixedly installed on the rod seat (452), the fixed gasket (43) is fixedly installed in the second socket (4211), the rod body (451) passes through the fixed gasket (43) and the sleeve (421) and is inserted into the first socket (411), and is fixedly opposite to the first socket (411); A plurality of support bridges (442) are formed on the elastic gasket (44) and uniformly distributed around the axis of the elastic gasket (44), the support bridges (442) are raised and close to the fixed gasket (43), and the support bridges (442) can be elastically deformed in the axial direction of the elastic gasket (44); The number of support bridges (442) is even, and two support bridges (442) that are centrally symmetrical have locking seats (443) raised towards the fixed gasket (43), and the outer contour of the locking seats (443) is arc-shaped, the fixed gasket (43) is centrally and symmetrically provided with two groups of locking hole groups (432) around the axis of the fixed gasket (43), each locking hole group (432) includes a plurality of locking holes (4321) distributed at equal intervals, and the locking holes (4321) are used for being fitted with the locking seats (443).

2. The rotational locking structure of claim 1, wherein, The fixed gasket (43) is centrally and symmetrically provided with two first positioning holes (431) around the axis of the fixed gasket (43), and the inner bottom surface of the second socket (4211) is provided with a first positioning seat (42111) corresponding in position and number to the first positioning holes (431).

3. A rotational locking structure (4) according to claim 1, characterized in that The end of the rod body (451) away from the rod seat (452) is formed with a fitting slope (4511), so that the cross section of the rod body (451) at the fitting slope (4511) is non-circular; The inner side of the first socket (411) is provided with a plurality of fixing teeth (412), and the outline formed by the plurality of fixing teeth (412) is matched with the cross-sectional outline of the rod body (451) at the fitting slope (4511).

4. A rotation locking structure (4) according to claim 3, characterized in that A plurality of first fixing holes (413) are throughly provided in the inner bottom of the first socket (411), and the end of the rod body (451) away from the rod seat (452) is provided with a plurality of second fixing holes (4512).

5. A rotation locking structure (4) according to claim 1, characterized in that, The elastic gasket (44) is provided with a fixed platform (441) between two adjacent support bridges (442), the fixed platform (441) is protruded towards the rod base (452), the second positioning hole (4411) is arranged in the fixed platform (441), and the second positioning seat (4521) corresponding in position and number to the second positioning hole (4411) is arranged on the rod base (452).

6. A rotational locking structure (4) according to claim 5, characterized in that The third positioning hole (444) is arranged on at least one support bridge (442), and the third positioning seat (4522) corresponding in position and number to the third positioning hole (444) is further arranged on the rod base (452).

7. A foldable fan characterized by, The fan body (3) is rotatably connected to the two cantilever arms (22) of the support frame (2), and the installation position of the fan body (3) is close to the arc-shaped frame (21). The two cantilever arms (22) of the support frame (2) are respectively rotatably connected to the two sides of the fan body (3), and the installation position of the fan body (3) is close to the arc-shaped frame (21). The cantilever arm (22) comprises a first cantilever arm (221) and a second cantilever arm (222), wherein the first cantilever arm (221) is hollow, so that the second cantilever arm (222) can be inserted into the first cantilever arm (221) and moved along the length direction of the first cantilever arm (221), so that the cantilever arm (22) is telescopic.

8. The fan as claimed in claim 7, wherein, ​

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