Turnover structure
By employing a multi-axis hole and rotating shaft design in the flipping structure, the bending force of the hole wall and rotating shaft is used to increase friction, thus solving the problem of high mold processing and injection molding stability requirements in traditional flipping structures and achieving stable hovering of the flipped body.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-10
AI Technical Summary
In traditional flip-over structures, the interference fit between the flipping body and the fixed body is required to be strict, which makes it difficult to control the stability of mold processing and injection molding, thus affecting the realization of the hovering function.
The design employs at least two rotating shafts and corresponding first and second shaft holes. By utilizing the bending force between the hole walls and the rotating shafts, friction is increased to achieve the hovering function, reducing the stringent requirements on hole diameter and diameter tolerances.
This achieves stable hovering of the flipped body relative to the fixed body, reducing the requirements for mold processing and injection molding stability, and improving the stability and reliability of the flipped structure.
Smart Images
Figure CN223982463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flip structure technology, and in particular to flip structures. Background Technology
[0002] As people's living standards continue to improve, many of the flip structures in in-vehicle products now need to have a hovering function. For example, the flip body and fixed body of the rearview mirror and vanity mirror used in the car must be designed with a damping structure to overcome the angle change caused by the self-weight or other forces of the flip body.
[0003] In traditional designs, the flipping structure includes a flipping body, a fixed body, and a rotating shaft. One end of the rotating shaft is interference-fitted with the flipping body, and the other end is interference-fitted with the fixed body. When the flipping body and the fixed body rotate around the axis of the rotating shaft at any angle, the friction generated by the interference fit between the rotating shaft and the flipping body and the fixed body at both ends causes the flipping body to hover relative to the fixed body at the specified angle, thus achieving the hovering function.
[0004] This design requires an interference fit between the flipper and the pivot, as well as between the pivot and the stationary body. The tolerances for the bore diameter of the flipper, the pivot diameter, and the stationary body are extremely stringent; any dimensional failure will disable the hovering function. It also places very high demands on mold processing and injection molding stability.
[0005] Therefore, it is urgent to reverse the structure to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide a flipping structure to solve the problem in related technologies where the mold processing and injection molding stability requirements are very high in order to achieve relative suspension of the flipping body and the fixed body.
[0007] This utility model provides a flipping structure, which includes:
[0008] A rotating shaft, wherein at least two rotating shafts are provided;
[0009] A fixing body, wherein at least two first shaft holes are provided at intervals along a preset direction;
[0010] A flipping body, wherein at least two second shaft holes are provided at intervals along the preset direction, and at least two rotating shafts, at least two first shaft holes and at least two second shaft holes correspond one-to-one with each other;
[0011] The rotating shaft is sequentially inserted into the corresponding first shaft hole and the corresponding second shaft hole, and the hole wall of the first shaft hole and the hole wall of the corresponding second shaft hole respectively act on the bending force of the corresponding rotating shaft.
[0012] As a preferred technical solution for the flipping structure, the axis of the first shaft hole and the axis of the corresponding second shaft hole form a preset angle α.
[0013] As a preferred technical solution for the flipping structure, the axis of the first shaft hole extends along the preset direction.
[0014] As a preferred technical solution for the flipping structure, the wall of the second shaft hole is interference-fitted with the rotating shaft.
[0015] As a preferred technical solution for the flipping structure, the axis of the second shaft hole extends along the preset direction.
[0016] As a preferred technical solution for the flipping structure, the wall of the first shaft hole is interference-fitted with the rotating shaft.
[0017] As a preferred technical solution for the flipping structure, the axis of the first shaft hole and the axis of the second shaft hole both extend along the preset direction;
[0018] The portion of the rotating shaft located in the corresponding first shaft hole and the portion located in the corresponding second shaft hole form a preset angle b.
[0019] As a preferred technical solution for the flipping structure, two first shaft holes and two second shaft holes are provided;
[0020] The two first shaft holes are located between the two second shaft holes, or the two second shaft holes are located between the two first shaft holes.
[0021] As a preferred technical solution for the flipping structure, the outer peripheral wall of the rotating shaft is provided with a friction-enhancing layer.
[0022] As a preferred technical solution for the flipping structure, the rotating shaft is elastic.
[0023] The beneficial effects of this utility model are as follows:
[0024] This utility model provides a flipping structure, which includes a rotating shaft, a fixed body, and a flipping body. At least two rotating shafts are provided. The fixed body has at least two first shaft holes spaced apart along a preset direction. The flipping body has at least two second shaft holes spaced apart along a preset direction. The at least two rotating shafts, at least two first shaft holes, and at least two second shaft holes correspond one-to-one. The rotating shafts are sequentially inserted into the corresponding first shaft holes and corresponding second shaft holes. The wall of the first shaft hole and the wall of the corresponding second shaft hole respectively act on the corresponding bending force of the rotating shaft. In this flipping structure, when the rotating shaft is sequentially inserted into the corresponding first shaft hole and second shaft hole, the wall of the first shaft hole and the wall of the corresponding second shaft hole respectively act on the corresponding bending force of the rotating shaft, thereby increasing the friction between the inner wall of the first shaft hole and the portion of the rotating shaft located within the first shaft hole. Similarly, this increases the friction between the inner wall of the second shaft hole and the portion of the rotating shaft located within the second shaft hole, so that after the flipping body rotates at any angle relative to the fixed body, the flipping body can be suspended relative to the fixed body. The flipping structure does not have strict requirements on the diameter tolerance of the first shaft hole, the diameter tolerance of the second shaft hole, and the diameter of the rotating shaft, thus the requirements for mold processing and injection molding stability are not high. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the flipping structure in an embodiment of the present invention. Figure 1 ;
[0026] Figure 2 This is an exploded view of the flipping structure in an embodiment of this utility model;
[0027] Figure 3 This is a schematic diagram of the flipping structure in an embodiment of the present invention. Figure 2 ;
[0028] Figure 4 for Figure 3 Sectional view at point AA.
[0029] In the picture:
[0030] X, preset direction;
[0031] 1. Shaft;
[0032] 2. Fixing body; 21. First shaft hole;
[0033] 3. Flip-over body; 31. Second shaft hole. Detailed Implementation
[0034] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0038] Example 1
[0039] like Figures 1-4As shown, this embodiment provides a flipping structure, which includes a rotating shaft 1, a fixed body 2, and a flipping body 3. The rotating shaft 1 has at least two shafts; the fixed body 2 has at least two first shaft holes 21 spaced apart along a preset direction X; the flipping body 3 has at least two second shaft holes 31 spaced apart along the preset direction X. The at least two rotating shafts 1, at least two first shaft holes 21, and at least two second shaft holes 31 correspond one-to-one. The rotating shaft 1 passes sequentially through the corresponding first shaft hole 21 and the corresponding second shaft hole 31. The wall of the first shaft hole 21 and the wall of the corresponding second shaft hole 31 respectively act on the bending force of the corresponding rotating shaft 1. In this flipping structure, the flipping body 3 can rotate relative to the fixed body 2 around the rotating shaft 1.
[0040] The rotating shaft 1 passes sequentially through the corresponding first shaft hole 21 and second shaft hole 31. The walls of the first shaft hole 21 and the corresponding second shaft hole 31 exert bending forces on the rotating shaft 1. Under its own strength, the rotating shaft 1 abuts against the portion of the first shaft hole 21 located within it, increasing the friction between them. Similarly, the inner wall of the second shaft hole 31 abuts against the portion of the rotating shaft 1 located within it, further increasing the friction. This allows the rotating body 3 to hover relative to the fixed body 2 after rotating at any angle. This rotating structure does not have strict requirements on the diameter tolerances of the first shaft hole 21, the second shaft hole 31, and the diameter of the rotating shaft 1, thus reducing the requirements for mold processing and injection molding stability.
[0041] Optionally, the first shaft hole 21 and the rotating shaft 1 are clearance-fitted, and / or the second shaft hole 31 and the rotating shaft 1 are clearance-fitted.
[0042] Optionally, the axis of the first shaft hole 21 and the axis of the corresponding second shaft hole 31 form a preset angle α. In this embodiment, since the axis of the first shaft hole 21 and the axis of the corresponding second shaft hole 31 form a preset angle α, and the axis of the rotating shaft 1 is a straight line, when the rotating shaft 1 passes through the corresponding first shaft hole 21 and second shaft hole 31 in sequence, the part of the rotating shaft 1 located in the first shaft hole 21 abuts against the inner wall of the first shaft hole 21, thereby increasing the static friction between the part of the rotating shaft 1 located in the first shaft hole 21 and the inner wall of the first shaft hole 21. The part of the rotating shaft 1 located in the second shaft hole 31 abuts against the inner wall of the second shaft hole 31, thereby increasing the static friction between the part of the rotating shaft 1 located in the second shaft hole 31 and the inner wall of the second shaft hole 31, ultimately achieving the suspension of the flipping body 3 relative to the fixed body 2.
[0043] Optionally, the preset included angle α is in the range of 160° < α < 180°, preferably 175°.
[0044] Optionally, the axis of the first shaft hole 21 extends along a preset direction X. In this embodiment, when the axis of the first shaft hole 21 extends along the preset direction X, the axial direction of the corresponding second shaft hole 31 is obliquely set to the preset direction X. After the rotating shaft 1 passes through the first shaft hole 21 and the second shaft hole 31 in sequence, the inner wall of the second shaft hole 31 abuts against the portion of the rotating shaft 1 located inside the second shaft hole 31, and at the same time, the inner wall of the first shaft hole 21 abuts against the portion of the rotating shaft 1 located inside the first shaft hole 21, so as to realize the suspension function between the flipping body 3 and the fixed body 2. Since the first shaft hole 21 on the fixed body 2 is set along the preset direction X, when the flipping body 3 flips relative to the fixed body 2, the flipping body 3 rotates around the axis of the first shaft hole 21.
[0045] Optionally, the wall of the second shaft hole 31 is interference-fitted with the rotating shaft 1. In this embodiment, since the axial direction of the second shaft hole 31 is offset from the preset direction X, the interference fit between the wall of the second shaft hole 31 and the rotating shaft 1 causes the flipping body 3 to bend and deform, thereby applying an inclined force to the rotating shaft 1. Under this force, the rotating shaft 1 will always press against the inner wall of the second shaft hole 31, forming a positive pressure, which in turn generates static friction to resist the movement tendency of the flipping body 3, ultimately achieving the hovering function.
[0046] Optionally, two first shaft holes 21 and two second shaft holes 31 are provided; the two first shaft holes 21 are located between the two second shaft holes 31, or the two second shaft holes 31 are located between the two first shaft holes 21. In this embodiment, this arrangement can limit the range of movement of the rotating body 3 relative to the fixed body 2 along the preset direction X, thereby preventing the rotating shaft 1 from coming out of the corresponding first shaft hole 21 or the corresponding second shaft hole 31.
[0047] Preferably, the fixed body 2 is provided with a first pivot lug and a first shaft hole 21 is located on the first pivot lug, and the flipping body 3 is provided with a second pivot lug and a second shaft hole 31 is located on the second pivot lug. The first pivot lug and the corresponding second pivot lug abut against each other along a preset direction X. This arrangement can restrict the movement of the flipping body 3 relative to the fixed body 2 along the preset direction X.
[0048] Optionally, a friction-enhancing layer is provided on the outer peripheral wall of the rotating shaft 1. In this embodiment, this feature can further enhance the static friction between the inner wall of the first shaft hole 21 and the rotating shaft 1 located within the first shaft hole 21, and similarly enhance the static friction between the inner wall of the second shaft hole 31 and the rotating shaft 1 located within the second shaft hole 31. This improves the stability of the rotating body 3 when suspended relative to the fixed body 2.
[0049] Optionally, the friction-enhancing layer can be a plurality of protruding teeth on the rotating shaft 1, with the protruding teeth arranged sequentially around the circumference of the rotating shaft 1. In other embodiments, the outer surface of the rotating shaft 1 can also be knurled.
[0050] Optionally, the pivot 1 is elastic. In this embodiment, this arrangement facilitates the assembly of the pivot 1 with the flipping body 3 and the fixing body 2. On the other hand, it converts the elastic deformation of the flipping body 3 and / or the fixing body 2 into the deformation of the pivot 1, thereby improving the durability and stability of the flipping body 3 and the fixing body 2, as well as the assembly fit between the flipping body 3 and the fixing body 2.
[0051] Example 2
[0052] This embodiment is basically the same as Embodiment 1, except that the axis of the second shaft hole 31 extends along a preset direction X. In this embodiment, when the axis of the second shaft hole 31 extends along the preset direction X, the axial direction of the corresponding first shaft hole 21 is offset from the preset direction X. When the rotating shaft 1 passes through the first shaft hole 21 and the second shaft hole 31 in sequence, the inner wall of the first shaft hole 21 abuts against the portion of the rotating shaft 1 located inside the first shaft hole 21, and at the same time, the inner wall of the second shaft hole 31 abuts against the portion of the rotating shaft 1 located inside the second shaft hole 31, so as to realize the suspension function between the flipping body 3 and the fixed body 2. Since the second shaft hole 31 on the fixed body 2 is set along the preset direction X, when the flipping body 3 flips relative to the fixed body 2, the flipping body 3 rotates around the axis where the second shaft hole 31 is located.
[0053] Optionally, the wall of the first shaft hole 21 is interference-fitted with the rotating shaft 1. In this embodiment, since the axial direction of the first shaft hole 21 is offset from the preset direction X, the wall of the first shaft hole 21 is interference-fitted with the rotating shaft 1. As a result, the fixed body 2 will bend and deform, thereby applying an inclined force to the rotating shaft 1. Under this force, the rotating shaft 1 will always press against the inner wall of the second shaft hole 31, forming a positive pressure, which in turn generates static friction to resist the movement tendency of the flipping body 3, and finally achieves the hovering function.
[0054] Example 3
[0055] This embodiment is basically the same as Embodiment 1, except that: optionally, the axis of the first shaft hole 21 and the axis of the second shaft hole 31 both extend along a preset direction X; the portion of the rotating shaft 1 located in the corresponding first shaft hole 21 and the portion located in the corresponding second shaft hole 31 form a preset angle b. In this embodiment, the axis of the first shaft hole 21 and the axis of the second shaft hole 31 both extend along a preset direction X. If the rotating shaft 1 forms a preset angle b, after inserting both ends of the rotating shaft 1 into the first shaft hole 21 and the second shaft hole 31 respectively, the portion of the rotating shaft 1 located in the first shaft hole 21 abuts against the inner wall of the first shaft hole 21, thereby increasing the static friction between the portion of the rotating shaft 1 located in the first shaft hole 21 and the inner wall of the first shaft hole 21, and the portion of the rotating shaft 1 located in the second shaft hole 31 abuts against the inner wall of the second shaft hole 31, thereby increasing the static friction between the portion of the rotating shaft 1 located in the second shaft hole 31 and the inner wall of the second shaft hole 31. This achieves the suspension of the rotating body 3 relative to the fixed body 2.
[0056] Optionally, the preset included angle b is in the range of 160° < a < 180°, preferably 175°.
[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A turnover structure comprising: a plurality of rotating shafts (1); a fixed body (2) provided with a plurality of first shaft holes (21) at intervals along a preset direction (X); a turnover body (3) provided with a plurality of second shaft holes (31) at intervals along the preset direction (X), the plurality of rotating shafts (1), the plurality of first shaft holes (21) and the plurality of second shaft holes (31) corresponding to each other one by one; characterized in that the rotating shafts (1) are sequentially arranged in the corresponding first shaft holes (21) and the corresponding second shaft holes (31), and the hole walls of the first shaft holes (21) and the corresponding second shaft holes (31) respectively act on the bending force of the corresponding rotating shafts (1).
2. The flip structure of claim 1, wherein The axis of the first shaft hole (21) and the axis of the corresponding second shaft hole (31) form a preset included angle a.
3. The flip structure of claim 2, wherein, The axis of the first shaft hole (21) extends along the preset direction (X).
4. The flip structure of claim 3, wherein, The hole wall of the second shaft hole (31) is in interference fit with the rotating shaft (1).
5. The flip structure of claim 2, wherein, The axis of the second shaft hole (31) extends along the preset direction (X).
6. The flip structure of claim 5, wherein, The hole wall of the first shaft hole (21) is in interference fit with the rotating shaft (1).
7. The flip structure of claim 1, wherein The axis of the first shaft hole (21) and the axis of the second shaft hole (31) both extend along the preset direction (X). The part of the rotating shaft (1) located in the corresponding first shaft hole (21) and the part of the rotating shaft (1) located in the corresponding second shaft hole (31) form a preset included angle b.
8. Flip structure according to any of claims 1-7, characterized in that The first shaft hole (21) is provided with two, and the second shaft hole (31) is provided with two. The two first shaft holes (21) are located between the two second shaft holes (31), or the two second shaft holes (31) are located between the two first shaft holes (21).
9. Flip structure according to any of claims 1-7, characterized in that The outer peripheral wall of the rotating shaft (1) is provided with a friction-increasing layer.
10. The flip structure according to any one of claims 1 to 7, wherein The rotating shaft (1) has elasticity.