Fan with connecting buckle and fan with connecting buckle

Abstract

We provide a connecting bracket and a fan equipped with a connecting bracket. [Solution] The device is equipped with a connecting fastener consisting of a rotating body structure 10 and a movable structure 20. The movable structure has a rotating positioning groove 21 into which the rotating body structure is inserted and made rotatable, and an insertion groove 22 that enters from the radial direction. The rotating body structure is provided with an annular projection 11 coaxially, and a locking portion 23 is provided on the rotating positioning groove side to prevent the annular projection from coming out in the axial direction. Furthermore, a first positioning steel ball 30 is formed on one of the mounting surfaces, a first positioning recess is formed on the other, and a second positioning steel ball 50 is provided at an eccentric position, enabling stable positioning in multiple stages. This suppresses wear and maintains rotational resistance over a long period of time, and facilitates attachment / detachment and angle adjustment of the fan body and clip. Conventional clip-type fans have problems such as the rotating part being prone to wear, the angle holding force decreasing with long-term use, and the inability to stably fix it at the desired angle. In addition, there was a problem that attachment / detachment of the fan body and clip was not easy, limiting the usage scenarios.

Description

Technical Field

[0001] This invention belongs to the technical field related to the shape, structure, and combination of articles, and particularly relates to a connecting buckle structure for detachably attaching to devices such as fans.

Background Art

[0002] In recent years, under environments with strong sunlight and high temperatures, umbrellas are widely used as a means to block ultraviolet rays and direct sunlight. However, ordinary umbrellas do not have a temperature adjustment function, and may lack comfort for users walking outdoors. Therefore, for the purpose of reducing the perceived temperature during use, a technology of attaching a small fan to an umbrella has been proposed. Generally, a structure in which the fan is integrally incorporated inside the umbrella frame is adopted. Although the effect of reducing the stuffiness during umbrella use can be obtained, there is a problem that since the fan and the umbrella are integrated, they cannot be used individually. Also, a structure that separates the fan and the umbrella is known. For example, a detachable clip is used to attach the fan to the umbrella handle, and the wind direction is changed by adjusting the angle of the clip. However, in this type of structure, the rotational positioning between the fan body and the clip mainly utilizes only frictional resistance, so wear progresses due to long-term use, and appropriate rotational resistance cannot be maintained, making it difficult to adjust the wind direction.

Summary of the Invention

Problems to be Solved by the Invention

[0003] An object of this invention is to provide a connecting buckle with high durability, capable of maintaining appropriate resistance during rotation, and easy to attach and detach, and a fan equipped with the same.

Means for Solving the Problems

[0004] The connecting buckle according to this invention is The system includes a rotating body member, a movable member having a rotational positioning groove into which the rotating body member is inserted and rotatable, and an insertion groove for the rotating body member to be transferred into the rotational positioning groove from the radial direction. A coaxial annular projection is formed on the side wall of the rotating member, and a limiting portion is provided on the side wall of the rotational positioning groove to prevent the annular projection from coming out in the axial direction. Mounting surfaces are formed on the bottom surface of the rotational positioning groove and the first end surface of the rotating body member, respectively. A first positioning sphere is coaxially mounted on one of these mounting surfaces, and a first positioning recess for housing the first positioning sphere is provided on the other. Furthermore, a second positioning sphere is provided at an eccentric position on one of the two mounting surfaces. [Effects of the Invention]

[0005] According to this invention, by employing an axial holding structure equipped with an annular projection and a limiting portion between the rotating member and the movable member, it is possible to reliably prevent the rotating member from falling out of the rotation positioning groove in the axial direction, making assembly and disassembly easy and ensuring a high level of safety when using portable fans and the like.

[0006] By providing a first positioning sphere and a first positioning recess between the bottom surface of the rotational positioning groove and the first end surface of the rotating body member, the rotating body member is stably held at multiple angular positions, improving operability during angle adjustment. As a result, the reliability of the rotational position is dramatically increased compared to conventional holding mechanisms that rely solely on frictional resistance.

[0007] The auxiliary positioning mechanism, which combines a second positioning sphere and multiple second positioning recesses, improves the accuracy of position holding during rotational operation and significantly reduces wear during long-term use. In particular, because the second positioning recesses are arranged in a ring shape in large numbers, fine angle adjustments are possible, resulting in a comfortable operating feel.

[0008] By providing two elastic members that bias the first and second positioning spheres, an appropriate pressing force is maintained between the rotating member and the movable member, and the desired rotational resistance is stably maintained even during long-term repetitive rotational operations. In addition, the small axial cushioning effect of the elastic members can prevent localized wear and damage to the constituent members.

[0009] The structure of the movable member, which includes a groove body structure with interconnected rotational positioning grooves and insertion grooves, a U-shaped through hole, and multiple connecting reinforcing bars, simultaneously achieves weight reduction and ensures strength. Furthermore, the elastic deformation caused by the through hole and connecting reinforcing bars enhances the contact with the rotating member, allowing for appropriate maintenance of the engagement force with the limiting part and the positioning sphere.

[0010] When the connecting fastener of this invention is applied to the clip structure of a fan, the wind direction angle can be easily adjusted via the rotating member, and the position retention performance after adjustment is excellent. As a result, a portable fan can be stably fixed to a parasol handle, umbrella rib, backpack, or other mounting object, greatly improving the comfort and convenience of the user.

[0011] Furthermore, by providing multiple connecting grooves, positioning pins, and annular protrusions between the rotating member and the fan body, the attachment and detachment of the fan body and the clip member becomes easier, allowing for simple switching between using the fan alone and using it with the clip attached. This expands the range of applications for the product and further enhances the practicality of the portable fan.

[0012] Other aspects and advantages of the present invention are partially described below, some of which become clear through the following description or can be understood by putting the present invention into practice. [Brief explanation of the drawing]

[0013] [Figure 1] This is a perspective view showing the overall configuration of the connecting fastener according to the present invention. [Figure 2] This diagram shows the structure of the first end of the rotating body member. [Figure 3] Figure 2 is a structural diagram of the rotating body member viewed from a different angle. [Figure 4] This figure shows the structure of a fan body equipped with the connecting fastener of the present invention. [Figure 5] This figure shows the overall configuration of a fan equipped with the connecting fastener of the present invention. [Figure 6] This is a cross-sectional view along line AA in Figure 5. [Figure 7] Figure 6 is an enlarged view of the substructure shown. [Modes for carrying out the invention]

[0014] In describing the embodiments for carrying out the present invention below, terms such as "first," "second," "third," and "fourth" in the specification, claims, and drawings are used to distinguish between objects and do not indicate a specific order or priority. Furthermore, terms such as "includes" and "possesses" imply non-exclusive inclusion and do not exclude the possibility of adding elements other than those listed or substituting those elements. In other words, it may include other components besides those listed, and all or part of the components may be omitted or replaced. In this specification, “Examples” means that certain features, structures, or functions described may be included in at least one embodiment of the present invention. When this term is used in different parts of this specification, it does not necessarily refer to the same embodiment, nor does it indicate that the embodiments are mutually exclusive. Those skilled in the art may also combine the embodiments described. Furthermore, "plural" refers to two or more items, and expressions like "A and / or B" include A alone, B alone, or the coexistence of A and B. A slash ( / ) may indicate "or" in context. Terms indicating position and direction, such as "up," "down," "left," "right," "upper end," "lower end," and "vertical direction," are based on the orientation of the device of this invention when it is in its normal operating state. Hereinafter, in order to clarify the object, structure, and effects of the present invention, specific embodiments will be described in detail while referring to the drawings. However, the embodiments described herein do not limit the present invention, and those skilled in the art can make various changes, improvements, and additional configurations based on the technical idea of the present invention, and all of them are included in the technical scope of the present invention.

Example

Example

[0015] As shown in FIGS. 1 to 7, the connecting fastener according to this embodiment includes a rotating body member 10 and a movable member 20, which are generally formed by resin molding. The rotating body member 10 can adopt a cylindrical shape, an upper trapezoidal shape, a lower trapezoidal shape, or a combination of these shapes, etc. In this embodiment, a cylindrical shape is used.

[0016] The movable member 20 is provided with a rotation positioning groove 21 into which the rotating body member 10 is inserted and can rotate, whereby the user can arbitrarily adjust the angle of a clip or the like. In this embodiment, the movable member 20 is in the shape of a rectangular plate and is configured as the movable part of the clip.

[0017] Furthermore, the movable member 20 is provided with an insertion groove 22 for moving the rotating body member 10 in the radial direction and guiding it into the rotation positioning groove 21. An annular convex portion 11 coaxial with the rotating body member 10 is formed on the side wall of the rotating body member 10, and a locking member 23 for preventing the axial detachment of the annular convex portion 11 is provided on the side wall of the rotation positioning groove 21.

[0018] The first end face of the rotating body member 10 and the bottom surface of the rotation positioning groove 21 respectively constitute mounting surfaces, and a first positioning steel ball 30 is provided in a semi-fitted state on one side, and a first positioning concave portion 40 that engages with the first positioning steel ball 30 is formed on the other side. Thereby, the rotating body member 10 can rotate without directly rubbing against the groove bottom, and wear is significantly reduced.

[0019] Furthermore, this connecting fastener includes a second positioning steel ball 50 that is eccentrically mounted on one of the mounting surfaces and has the same diameter as the first positioning steel ball 30. The two steel balls work together to prevent axial misalignment of the rotating body structure 10, ensure uniform contact between the annular projection 11 and the locking member 23, and suppress wear during long-term use.

[0020] In this embodiment, the first positioning steel ball 30 and the second positioning steel ball 50 are each fitted with an elastic member 60 (such as a spring). The elastic member 60 absorbs minute axial displacements during the rotation process, stabilizes the contact force with the locking member 23, and maintains good rotational resistance for a long period of time.

[0021] Multiple second positioning recesses 70 are provided and arranged in an annular pattern on the outside of the first positioning recess 40. This creates a moderate clicking sensation when the steel ball moves between the recesses during rotation, improving the accuracy of angular positioning and the user experience.

[0022] Mounting grooves 80 for steel balls are formed on the bottom surface of the rotational positioning groove 21. The opening diameter is smaller than the diameter of each steel ball, and the steel balls are supported with a portion of them protruding. The mounting grooves 80 are formed from a metal cylindrical member 200, and the structure is designed so that the steel balls do not directly wear down the movable structure 20.

[0023] The rotational positioning groove 21 and the insertion groove 22 are in communication, forming a rectangular groove body with arc-shaped ends. The side walls are provided with circumferentially extending protrusions, which constitute the locking member 23. Guide portions extending toward the insertion groove 22 are formed at both ends of the locking member 23 to facilitate the insertion of the annular protrusion 11.

[0024] Multiple axial notches 231 are provided at equal intervals on the inner wall of the locking member 23, thereby increasing the elasticity of the locking member 23 and preventing damage due to local stress.

[0025] Furthermore, a U-shaped through-hole 210 is formed in the bottom surface of the rotational positioning groove 21, and the steel balls 30 and 50 are positioned on its two arms. The through-hole 210 makes the bottom surface an elastic member, assisting the locking force and the pressing force of the steel balls, thereby achieving long-term stable rotational torque.

[0026] Multiple reinforcing ribs 90 are formed on the outer wall side of the through-hole 210, enabling prevention of fracture at the bottom and maintaining appropriate elasticity. [Examples]

[0027] This embodiment relates to a fan equipped with the connecting clip of Embodiment 1. As shown in Figures 3 to 7, the fan has a fan body 100 and a clip plate 110 positioned on the opposite side of the movable structure 20. The clip plate 110 and the movable structure 20 are pivotally connected by a shaft 120, and a torsion spring is provided to form an openable and closable clip structure.

[0028] The rotating body structure 10 is cylindrical and can be detachably attached to the fan body 100. Three connecting grooves 140 are formed on the second end face of the rotating body structure 10, and these are made of integrally molded cylindrical members. A large annular enclosure structure 150 is formed on the outer circumference, reducing material usage while maintaining strength.

[0029] Multiple positioning pins 160 are provided on the fan body 100, and initial fixing is performed by press-fitting them into the connection groove 140. In addition, a screw hole 170 coaxial with one of the positioning pins 160 is formed on the first end face of the rotating body structure 10, and it is securely fixed by a screw.

[0030] Annular protrusions 180 surrounding multiple positioning pins 160 are formed on the outside of the fan body 100, and these engage with insertion grooves 190 (spaces inside the annular enclosure structure 150) formed on the second end face side of the rotating body structure 10, enabling stable positioning.

[0031] Furthermore, those skilled in the art can make various modifications and equivalent substitutions based on the technical concept of this embodiment, and these are also included within the technical scope of the present invention. [Industrial applicability]

[0032] The connecting fastener according to this invention and the fan equipped therewith are widely applicable industrially as follows.

[0033] The connecting fastener of this invention has a simple structure, excellent ease of assembly and attachment / detachment, and maintains a stable positioning function over a long period of time while reducing wear on the rotating parts. Therefore, it can be widely applied as an angle adjustment structure or movable connecting part in a variety of products such as small home appliances, portable fans, clip-on fans, and umbrella accessories.

[0034] In particular, applying the connecting fastener of this invention to portable fans and clip-on fans makes it easier to fix them to umbrella ribs and handles, and to attach them to bags, clothing, furniture, etc., allowing them to be adapted to a variety of usage scenarios. Furthermore, since rotational resistance is stably maintained even with repeated use over a long period of time, it contributes to improved product reliability and user convenience.

[0035] Furthermore, this invention is highly versatile and can be repurposed as a modular component for other movable structures and angle adjustment mechanisms, making it useful in a wide range of industrial fields, including home appliances, outdoor equipment, daily necessities, and mobile device accessories. [Explanation of symbols]

[0036] TIFF0003255720000002.tif16493

Claims

1. A connecting fastener comprising a rotating body member, a movable member having a rotational positioning groove into which the rotating body member is inserted and rotatable, and an insertion groove for the rotating body member to enter the rotational positioning groove from the radial direction, A coaxial annular projection is formed on the side wall of the rotating body member, and a limiting portion is provided on the side wall of the rotational positioning groove to prevent the annular projection from coming out in the axial direction. The bottom surface of the rotational positioning groove and the first end surface of the rotating body member each form a mounting surface, a first positioning sphere is provided coaxially on one of these mounting surfaces, and a first positioning recess for housing the first positioning sphere is provided on the other. Furthermore, the connecting fastener is characterized by comprising a second positioning sphere that is eccentrically provided on one of the two mounting surfaces.

2. In the connecting fastener described in claim 1, The connecting fastener further comprises two elastic members that bias the first positioning sphere and the second positioning sphere toward the opposing mounting surface, and is characterized in that, during assembly, the annular protrusion abuts against and engages with the limiting portion due to the elasticity of the elastic members.

3. In the connecting fastener described in claim 2, The first positioning sphere and the second positioning sphere are provided on the bottom surface of the rotational positioning groove. The first end face is provided with the first positioning recess and a plurality of second positioning recesses for accommodating the second positioning sphere. The connecting fastener is characterized in that the second positioning recess is arranged in an annular shape on the outside of the first positioning recess.

4. In the connecting fastener described in claim 3, A connecting fastener characterized in that the distance between the centers of two adjacent second positioning recesses is less than the sum of their diameters.

5. In the connecting fastener according to claim 3 or 4, A connecting fastener characterized in that the bottom surfaces of both the first positioning recess and the second positioning recess are circular surfaces.

6. In the connecting fastener described in claim 3, Mounting grooves for accommodating the first positioning sphere and the second positioning sphere are formed on the bottom surface of the rotational positioning groove. The two elastic members are arranged in the two mounting grooves. The connecting fastener is characterized in that the opening diameter of the mounting groove is smaller than the diameters of the first and second positioning spheres, and during assembly, a portion of the positioning spheres protrudes from the mounting groove due to the elastic member.

7. In the connecting fastener described in claim 1, The rotational positioning groove and the insertion groove are in communication with each other, forming a rectangular groove body, and both ends of the groove body are arc-shaped. The side wall of the rotational positioning groove is provided with circumferentially extending protrusions, and these protrusions form the limiting portion. A connecting fastener characterized in that extensions extending toward the insertion groove are provided at both ends of the limiting portion.

8. In the connecting fastener described in claim 7, A connecting fastener characterized in that the inner wall of the limiting portion has a plurality of notches that penetrate axially in a manner corresponding to the rotational positioning groove, provided at equal intervals.

9. In the connecting fastener described in claim 1, A U-shaped through hole is formed in the bottom surface of the rotational positioning groove, and its opening faces the insertion groove side. A connecting fastener characterized in that the first positioning sphere and the second positioning sphere are arranged between the two legs of the through hole.

10. In the connecting fastener described in claim 9, Multiple connecting ribs are provided within the through hole to connect its inner and outer walls. The connecting fastener is characterized in that the connecting rib is positioned on the side away from the insertion groove.

11. A fan body, a connecting fastener according to any one of claims 1 to 10, The system comprises a clip plate connected to the movable member located on the opposite side of the rotating member, The rotating member is provided on the outer wall of the fan body. The electric fan is characterized in that the clip plate and the movable member are hinge-connected, and a torsion spring is provided on their pivot axis to form an openable and closable clip structure.

12. In the electric fan according to claim 11, The rotating member is cylindrical and is detachably attached to the fan body, characterized in that it is a fan.

13. In the electric fan according to claim 12, Multiple connecting grooves are formed on the second end face of the rotating body member. The fan body is provided with a plurality of positioning pins corresponding to each connecting groove. A fan characterized in that a connecting hole is formed in the first end face, passing through it axially and coaxially with one of the positioning pins.

14. In the electric fan according to claim 13, The fan body is provided with annular protrusions surrounding a plurality of positioning pins. A fan characterized in that the second end face is provided with a fitting groove for inserting the annular protrusion.

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