JP3246535U - Arc arm type shaft mechanism and electronic device - Google Patents

Abstract

[Problem] To provide an arc arm type shaft mechanism that stores a flexible screen in a folded state, effectively avoids wrinkles, and extends the service life, and an electronic device including the shaft mechanism. [Solution] The shaft mechanism has an unfolded state and a folded state, and includes a base and a rotating body that is rotatably connected to both the left and right sides of the base via a pivot, the base includes a base body, a lifting board that is mounted on the base body so as to be able to move up and down, and an elastic member connected between the base body and the lifting board, the elastic member drives the lifting board to maintain a downward tendency, the shaft mechanism further includes an arc arm mounted on both the left and right sides of the base, one end of the arc arm is rotatably connected to a corresponding rotating body, and the other end is formed with an arc-shaped slide part, the base is formed with a slide groove that matches the slide part, and the slide part is slidably installed in the slide groove. [Selected Figure] Figure 2

Description

This utility model belongs to the field of electronic product accessories, and specifically relates to an arc arm type shaft mechanism, as well as an electronic device having the shaft mechanism.

Flexible screen refers to flexible OLED. The successful mass production of flexible screens will not only bring great benefits to the manufacturing of new generation high-end smartphones, but also have a major impact on the application of wearable devices due to their low power consumption and bendable characteristics.

Currently, shaft structures used in electronic devices using flexible screens generally include a base and a rotating body that is rotatably connected to both the left and right sides of the base. The rotating body is used to connect to the shell of the electronic device and can be rotated 0° to 180° relative to the base, and the flexible screen is attached to the shell.

However, during actual use, the flexible screen has a minimum radius of curvature and cannot be completely folded in half or extended (i.e., the surface area of the flexible screen remains unchanged). In order to obtain the support effect in the middle of the screen after unfolding, the conventional shaft structure has a support plate between the rotating bodies on both sides. Therefore, after the rotating bodies on both sides are folded, the internal space of the shaft structure formed between the rotating bodies on both sides and the middle support plate becomes insufficient, and the flexible screen is easily compressed, which is likely to cause scratches on the screen during long-term use and may even cause damage to the screen.

The technical problem that this utility model aims to solve is to eliminate the shortcomings of the conventional technology and provide an improved arc arm shaft mechanism.

At the same time, this utility model also provides an electronic device image.

To solve the above technical problems, this utility model adopts the following technical solutions:

An arc arm type shaft mechanism having an unfolded state and a folded state, comprising a base and a rotating body rotatably connected to the left and right sides of the base via a pivot, the base comprising a base body, a lifting board mounted on the base body so as to be movable up and down, and an elastic member connected between the base body and the lifting board, the elastic member driving the lifting board so as to maintain a downward tendency, the shaft mechanism further comprising an arc arm mounted on the left and right sides of the base, one end of the arc arm being movably connected to the corresponding rotating body and the other end having an arc-shaped slide section is formed, a slide groove is formed in the base to match the slide part, the slide part is slidably installed in the slide groove, when the shaft mechanism is in the unfolded state, the slide part supports the lifting board upward along the slide groove, the lifting board rises synchronously accordingly, and the rotating bodies on both the left and right sides are aligned, when the shaft mechanism is in the folded state, the slide part moves downward along the slide groove and disengages from the lifting board, and the elastic member drives the lifting board to descend synchronously, and a teardrop-shaped space is formed between the rotating bodies on both the left and right sides and the lifting board.

Preferably, each slide section is formed with a support surface that is attached to the bottom surface of the lifting board, and when the shaft mechanism is in an unfolded state, the two corresponding left and right support surfaces are joined together and supported synchronously by the bottom surface of the lifting board. Here, in the unfolded state, the two left and right support surfaces are firmly connected, improving support for the screen.

Preferably, the opposing sides of the slide section are recessed inward to form an insertion groove, and an insertion portion that fits into the insertion groove is formed on the inner wall of the slide groove, and during assembly, the insertion portion is inserted into the insertion groove. Here, the slide connection is stable.

Preferably, two arc arms are provided on each of the left and right sides of the base, spaced apart from one another, and each pivot is provided between the corresponding two arc arms.

Preferably, there are at least two elastic members and they are spaced apart along the length of the pivot, ensuring a uniform force on the lifting board during the lifting process and ensuring smooth movement.

Specifically, the elastic member is a spring, and the base body is provided with two mounting grooves that penetrate vertically, two springs are provided corresponding to each mounting groove, and bolts are connected to the bottom surface of the lifting board, and during assembly, the bolts are inserted into each mounting groove in one-to-one correspondence, and each spring is fitted onto the corresponding bolt and abutted between the lower end of the bolt and the upper end of the mounting groove. Here, the structure is simple, and installation and implementation are convenient.

Preferably, the rotating body includes a rotating module, a backrest provided on the rotating module, and a rotating arm connected between the rotating module and a corresponding pivot, one end of the arc arm is rotatably connected to the corresponding rotating module, and when the shaft mechanism is in a folded state, a teardrop-shaped space is formed between the backrests on both the left and right sides and the lifting board, and when the shaft mechanism is in an unfolded state, the backrests on both the left and right sides and the lifting board are aligned.

Specifically, a first slide groove is formed in the rotating module, one end of the rotating arm is fitted onto the corresponding pivot, and the other end is inserted into the first slide groove, allowing it to slide straight, and/or a synchronous gear is provided between the rotating arms on both the left and right sides. The rotating bodies on both the left and right sides can be folded and unfolded synchronously.

Furthermore, the bottom of the backrest is provided with a sliding connection part which is slidably connected to the end of each connection module in one-to-one correspondence, a second sliding groove is further formed in the middle of the backrest, the rotating body further includes an auxiliary arm, an arc groove is formed in the base, one end of the auxiliary arm is inserted into the arc groove and the other end is inserted into the second sliding groove, and when the shaft mechanism is switched between the unfolded state and the folded state, one end of the auxiliary arm slides along the arc groove and the other end slides straight along the second sliding groove. Here, during folding, while the backrest slides relative to the connection module, it can move away from the lifting board to further increase the size of the teardrop-shaped space.

Another technical solution of this utility model is an electronic device that includes a left shell and a right shell, and the electronic device further includes the shaft mechanism described above, and the left shell and the right shell are fixedly connected to correspond to the rotating bodies on both the left and right sides.

Due to the implementation of the above technical solutions, this utility model has the following advantages over the prior art:

In the conventional shaft structure, in order to obtain a support effect in the middle of the screen after unfolding, a support plate is provided between the rotating bodies on both sides. As a result, after the rotating bodies on both sides are folded, the internal space of the shaft structure formed between the rotating bodies on both sides and the middle support plate becomes insufficient, making it easy for the flexible screen to be compressed and prone to causing scratches on the screen during long-term use, and even causing defects such as damage to the screen. On the other hand, the present utility model designs the shaft structure as a whole, ingeniously resolving various shortcomings of the conventional structure. When using this shaft structure, when unfolding, the support from the arc arm to the lifting board drives the lifting board to align with the rotating body to form support for the flexible screen, and when folding, the elastic member is reset to drive the lifting board to descend, effectively expanding the teardrop-shaped space formed between the left and right rotating bodies and the lifting board after folding. Compared to the prior art, this utility model increases the internal space of the shaft mechanism by the descending action of the lifting board during folding to accommodate the flexible screen in the folded state, thereby effectively avoiding wrinkles in the screen and extending the service life of the screen.

The present utility model will now be described in more detail with reference to the drawings and specific examples.

FIG. 2 is a schematic perspective view of the shaft mechanism of the present invention; FIG. 2 is a schematic exploded view of the shaft mechanism of the present invention; FIG. 2 is a schematic plan view of the shaft mechanism of the present invention. FIG. 4 is an enlarged schematic view (unfolded state) taken along the line AA in FIG. 3 . FIG. 4 is an enlarged schematic view (unfolded state) taken along the line BB in FIG. 3 . FIG. 4 is an enlarged schematic cross-sectional view taken along the line BB in FIG. 3 (the shaft mechanism is deployed to 140°). FIG. 4 is an enlarged schematic cross-sectional view taken along the line BB of FIG. 3 (folded state).

In order to make the above-mentioned objects, features and advantages of the present invention more clear, specific embodiments of the present invention will be described in detail below with reference to the drawings. In the following description, many specific details will be described to fully understand the present invention. However, the present invention is not limited to the specific examples disclosed below, since the present invention can be embodied in many ways different from those described herein, and similar improvements can be made by those skilled in the art without departing from the scope of the present invention.

In describing the present invention, the orientations or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like, are based on those shown in the accompanying drawings and are intended merely to facilitate and simplify the description of the present invention, and are not intended to indicate or suggest that the indicated devices or elements have a particular orientation or must be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present invention.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and cannot be understood to indicate or imply the relative importance or number of the indicated technical features. This may explicitly or implicitly state that the feature to which it is qualified includes at least one of the said feature. In the description of the present invention, "plurality" means at least two, e.g., two, three, etc., unless otherwise expressly and specifically limited.

In the present invention, unless otherwise clearly specified and limited, the terms "attached," "connected," "connected," "fixed," etc. should be understood broadly, and unless otherwise clearly limited, they may be, for example, fixedly connected, detachably connected, or integral, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or an internal communication between two elements or an interactive relationship between two elements. Those skilled in the art may understand the specific meaning of the above terms in the present utility model according to the specific circumstances.

In the present invention, unless otherwise specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact with each other, or that the first and second features are in indirect contact with each other through an intermediate medium. And a first feature being "above", "above" and "on the upper surface" of a second feature may mean that the first feature is directly above or diagonally above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. A first feature being "below", "below" and "on the lower surface" of a second feature may mean that the first feature is directly below or diagonally below the second feature, or only means that the horizontal height of the first feature is lower than that of the second feature. It should be noted that when an element is said to be "fixed" or "mounted" on another element, it may be directly on the other element, or there may be a centered element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or a centering element may be present at the same time. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar terms used herein are for illustrative purposes only and do not represent the only embodiment.

As shown in Figures 1 to 7, the electronic device of this embodiment includes a left shell, a right shell, and a shaft mechanism, the left shell and the right shell are respectively connected to the left and right sides of the shaft mechanism, and are used for mounting various types of electronic accessories, and the flexible screen is connected to the left shell and the right shell.

Specifically, the shaft mechanism has an unfolded state and a folded state, and includes a base 1, a rotating body 2 rotatably connected to the left and right sides of the base 1 via a pivot s, and an arc arm 3 provided on the left and right sides of the base 1 and correspondingly connected between the rotating body 2 and the base 1, and the left and right shells are connected to the rotating bodies 2 on the left and right sides, respectively. The pivot s is a damping shaft, which is a common technical means and will not be described here.

In this example, the base 1 includes a base body 10, a lifting board 11 that is arranged above the base body 10 so as to be able to move up and down, and an elastic member 12 that is connected between the base body 10 and the lifting board 11, and pivots s are arranged on both the left and right sides of the base body 10, and the elastic member 12 has a tendency to drive the lifting board 11 to move downward relative to the base body 10.

Specifically, there are two elastic members 12, which are spaced apart along the length of the pivot s, and the elastic members 12 are springs. The base body 10 is provided with two mounting grooves 100 that penetrate vertically, and there are two springs that are provided in each mounting groove 100. The bottom surface of the lifting board 11 is connected to a bolt 110. During assembly, the bolts 110 are inserted into each mounting groove 100 in one-to-one correspondence, and each spring is fitted onto the corresponding bolt 110 and abuts between the lower end of the bolt 110 and the upper end of the mounting groove 100. In some specific embodiments, when the left and right rotating bodies 2 are deployed 140° opposite each other, the lifting board 11 hits the bottom.

At the same time, for ease of implementation, guide grooves 101 extending vertically are provided on both ends of the base body 10, and a guide column 111 aligned with the guide groove 100 is further provided on the bottom of the lifting board 11. When unfolding or folding, the guide column 111 is inserted into the guide groove 101 and moves along the guide groove 101.

In this example, each rotating body 2 includes a rotating module 20, a backrest 21 provided on the rotating module 20, and a rotating arm 22 provided between the rotating module 20 and the corresponding pivot s. There are two rotating modules 20, which are arranged side by side and spaced apart along the length of the pivot s. When the shaft mechanism is in a folded state, a teardrop-shaped space is formed between the backrests 21 on both the left and right sides and the lifting board 11. When the shaft mechanism is in an unfolded state, the backrests 21 on both the left and right sides and the lifting board 11 are aligned, and a synchronization gear b is provided between the rotating arms 22 on both the left and right sides.

Specifically, the first slide groove c1 is formed in the rotating module 20, one end of the rotating arm 22 is fitted onto the corresponding pivot s, and the other end is inserted into the first slide groove c1 and installed so as to be able to slide straight; the bottom of the backrest 21 is formed with a slide connection part 210 which is slidably connected to the end of each connection module 20 in a one-to-one correspondence, and a second slide groove c2 is further formed in the middle of the backrest 21; the rotating body 2 further includes an auxiliary arm 23; the base body 10 is formed with an arc groove 102, one end of the auxiliary arm 23 is inserted into the arc groove 102, and the other end is inserted into the second slide groove c2; when the shaft mechanism is switched between the unfolded state and the folded state, one end of the auxiliary arm 23 slides along the arc groove 102, and the other end slides straight along the second slide groove c2.

In this example, two arc arms 3 are provided on each of the left and right sides of the base 1, spaced apart from one another, and each pivot s is provided between the corresponding two arc arms 3.

Specifically, one end of the arc arm 3 is movably connected to the corresponding rotating body 2, and an arc-shaped slide part 30 is formed at the other end. An arc-shaped slide groove 103 is formed in the base 1 to match the slide part 30, and the slide part 30 is slidably provided within the slide groove 103. When the shaft mechanism is in the unfolded state, the slide part 30 supports the lifting board 11 upward along the slide groove 103, and the lifting board 11 rises synchronously accordingly, and the rotating bodies 2 on both the left and right sides are aligned. When the shaft mechanism is in the folded state, the slide part 30 moves downward along the slide groove 103 and disengages from the lifting board 11, and the elastic member 12 drives the lifting board 11 to descend synchronously, forming a teardrop-shaped space between the rotating bodies 2 on both the left and right sides and the lifting board 11.

In other words, one end of the arc arm 3 is rotatably connected to the corresponding rotating module 20, each slide section 30 is formed with a support surface that is bonded to the bottom surface of the lifting board 11, and when the shaft mechanism is in an unfolded state, the two corresponding left and right support surfaces are joined together and supported on the bottom surface of the lifting board 11, the opposing sides of the slide section 30 are recessed inward to form an insertion groove 300, and an insertion portion a that fits into the insertion groove is formed on the inner wall of the slide groove 103, and the insertion portion a is inserted into the insertion groove 300 during assembly.

In short, when using this shaft structure, when unfolding, the support from the arc arm to the lifting board drives the lifting board to align with the rotating body to form support for the flexible screen, and when folding, the elastic member is reset to drive the lifting board to descend, thereby effectively expanding the teardrop-shaped space formed between the left and right rotating bodies and the lifting board after folding. Therefore, compared to the prior art, on the one hand, during folding, the descending action of the lifting board increases the internal space of the shaft mechanism to store the flexible screen in the folded state, and therefore , effectively avoiding wrinkles on the screen and extending the service life of the screen; secondly, the structure is compact and stable, and at the same time, when unfolded, the two left and right support surfaces are firmly connected, improving the support for the screen and improving the flatness of the flexible screen after unfolding; thirdly, when folding, the backrest can be separated from the lifting board while sliding against the connection module, so as to further increase the size of the teardrop-shaped space; fourthly, the use of the damping shaft improves the feel when unfolding or folding, and at the same time allows the shaft mechanism to stop at any angle during the unfolding or folding process.

The above describes this utility model in detail, with the purpose of enabling a person skilled in the art to understand and implement the content of the invention, and does not limit the scope of protection of this utility model. Any equivalent changes or modifications made based on the concept of this utility model should be included in the scope of protection of this utility model.

1, base 10, base body 100, mounting groove 101, guide groove 102, arc groove 103, slide groove a, insertion portion 11, lifting board 110, bolt 111, guide column 12, elastic member s, pivot 2, rotating body 20, rotating module c1, first slide groove 21, backrest 210, slide connection portion c2, second slide groove 22, rotating arm b, synchronous gear 23, auxiliary arm 3, arc arm 30, slide portion 300, insertion groove

Claims (18)

An arc arm type shaft mechanism having an unfolded state and a folded state, the arc arm type shaft mechanism including a base and a rotating body rotatably connected to both left and right sides of the base via a pivot,
the base includes a base body, a lifting board mounted on the base body so as to be able to move up and down, and an elastic member connected between the base body and the lifting board, the elastic member drives the lifting board to maintain a downward tendency, the shaft mechanism further includes arc arms mounted on both left and right sides of the base, one end of each of the arc arms is movably connected to a corresponding one of the rotating bodies and an arc-shaped slide part is formed on the other end, and a slide groove is formed in the base to match the slide part, when the shaft mechanism is in an unfolded state, the slide part supports the lifting board upward along the slide groove, and the lifting board rises synchronously with the rotating bodies on the left and right sides until they are aligned, when the shaft mechanism is in a folded state, the slide part moves downward along the slide groove and disengages from the lifting board, and the elastic member drives the lifting board to descend synchronously, and a teardrop-shaped space is formed between the rotating bodies on the left and right sides and the lifting board. The arc arm type shaft mechanism described in claim 1, characterized in that each slide portion is formed with a support surface to be attached to the bottom surface of the lifting board, and when the shaft mechanism is in an unfolded state, the two corresponding left and right support surfaces are supported synchronously with the bottom surface of the lifting board. The arc arm type shaft mechanism according to claim 2, characterized in that, when the shaft mechanism is in an unfolded state, the two corresponding left and right support surfaces are joined to each other and supported on the bottom surface of the lifting board. The arc arm type shaft mechanism according to claim 1, characterized in that the opposing sides of the slide portion are recessed inward to form an insertion groove, an insertion portion that fits into the insertion groove is formed on the inner wall of the slide groove, and the insertion portion is inserted into the insertion groove during assembly. The arc arm type shaft mechanism according to claim 1, characterized in that two arc arms are provided on each of the left and right sides of the base, arranged side by side and spaced apart, and each pivot is provided between the corresponding two arc arms. 2. The arc arm shaft mechanism of claim 1, wherein said elastic members are at least two in number and are spaced apart along the length of said pivot. 7. The arc arm type shaft mechanism according to claim 6, wherein the elastic member is a spring. The arc arm type shaft mechanism according to claim 7, characterized in that the elastic member is a spring, the base body is provided with two mounting grooves penetrating vertically, and there are two springs, each of which is provided in a corresponding one of the mounting grooves. The arc arm type shaft mechanism according to claim 8, characterized in that a bolt is connected to the bottom surface of the lifting board, and when assembled, the bolt is inserted into each of the mounting grooves in a one-to-one correspondence, and each of the springs is fitted onto the corresponding bolt and abutted between the lower end of the bolt and the upper end of the mounting groove. The arc arm type shaft mechanism of claim 1, characterized in that the rotating body includes a rotating module, a backrest provided on the rotating module, and a rotating arm connected between the rotating module and the corresponding pivot, one end of the arc arm is rotatably connected to the corresponding rotating module, and when the shaft mechanism is in a folded state, a teardrop-shaped space is formed between the backrests and the lifting board on both the left and right sides, and when the shaft mechanism is in an unfolded state, the backrests and the lifting board on both the left and right sides are aligned. The arc arm type shaft mechanism according to claim 10, wherein the rotating module is formed with a first slide groove, one end of the rotating arm is fitted onto the corresponding pivot, and the other end of the rotating arm is inserted into the first slide groove and installed so as to be able to slide straight. 11. The arc arm type shaft mechanism according to claim 10, wherein a synchronous gear is provided between the left and right rotating arms. The arc arm type shaft mechanism according to claim 10, wherein a slide connection portion is provided at the bottom of the backrest in one-to-one correspondence with an end portion of each connection module and slidably connected thereto. 11. The arc arm type shaft mechanism of claim 10, wherein a second slide groove is further formed in the middle of the backrest, the rotating body further includes an auxiliary arm, an arc groove is formed in the base, and one end of the auxiliary arm is inserted into the arc groove and the other end is inserted into the second slide groove. The arc arm type shaft mechanism of claim 14, wherein when the shaft mechanism is switched between the unfolded state and the folded state, one end of the auxiliary arm slides along the arc groove and the other end slides straight along the second slide groove. 2. The arc arm shaft mechanism of claim 1, wherein said pivot is a damped shaft. The arc arm type shaft mechanism of claim 1, characterized in that the base body is provided with guide grooves extending vertically at both ends, and the bottom of the lifting board is further provided with a guide column aligned with the guide groove, and when unfolding or folding, the guide column is inserted into the guide groove and moves along the guide groove. 1. An electronic device including a left shell and a right shell,
The electronic device further includes the arc arm type shaft mechanism according to any one of claims 1 to 17, wherein the left shell and the right shell are fixedly connected to the rotating bodies on both the left and right sides.