CN219317424U - Folding screen bending linkage mechanism - Google Patents

Abstract

The utility model relates to the technical field of folding screens, and discloses a folding screen bending linkage mechanism which comprises a sliding panel, a lower panel and an upper panel, wherein the sliding panel can slide relative to the lower panel, and the upper panel rotates by 0-180 degrees relative to the lower panel and the sliding panel through a rotating cylinder and a rotating column along a semicircular rotating groove fixed on the lower panel. The folding screen bending linkage mechanism achieves large-angle bending of the folding screen by arranging the bent rod, the supporting rod, the rotating groove and the sliding column to be matched. And secondly, when the folding screen is completely unfolded or completely folded and closed, the locking can be formed by providing reverse force through the bent rod. Solves the problems of no locking, friction locking and spring ball locking in the prior art.

Description

A folding screen bending linkage mechanism

technical field

The utility model relates to the technical field of folding screens, in particular to a folding linkage mechanism for folding screens.

Background technique

The development and application of OLED flexible screen technology has become more and more mature, which has promoted the birth and development of foldable mobile phones. Part of the existing folding screen linkage mechanism has no locking mechanism, the other part is locked by friction, and the other part is locked by a spring ball. locked. The main problem that prior art exists is:

1. Without a locking mechanism, the folding screen’s own damping effect is completely relied on to limit the displacement of the folding screen, so it is easy to cause the folding screen to collide back and forth due to vibration and vibration during use.

2. Friction lock On the one hand, there is a problem of serious wear of the friction mechanism, on the other hand, the friction lock mechanism often requires the user to use a lot of force to release the lock, which is easy to damage the screen or break the folding screen.

3. The locking structure of the spring ball is relatively complicated, and the matching degree of the locking structure is relatively high. Once the spring has a problem of resilience or the cooperation between the ball and the spherical groove, it is difficult to lock and the maintenance is also difficult.

Utility model content

Aiming at the deficiencies of the existing technology, the utility model provides a folding screen bending linkage mechanism to solve the problems existing in the existing folding screen linkage mechanism mentioned in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a folding screen bending linkage mechanism, including a sliding panel, a lower panel, and an upper panel, the sliding panel can slide relative to the lower panel, and the outer surface of the upper panel is fixed A rotating cylinder is connected, and the inner surfaces of the left and right sides of the rotating cylinder are fixedly connected with rotating columns. The panel rotates 0-180°.

The outer surfaces of the left and right sides of the sliding panel are rotatably connected with support arms, and the outer surface of the rotating cylinder is rotatably connected with curved rods, and the curved rods are rotatably connected with the support arms, and when the upper panel is folded at 0° relative to the sliding panel Or when the upper panel is opened at 180° relative to the sliding panel, one arm of the curved rod is coaxial with the support arm and arranged along the longitudinal axis of the sliding panel, and the other arm of the curved rod is inclined towards the bottom angle of the rotating groove.

Preferably, on the outer surfaces of both sides of the sliding panel there are transfer platforms extending to the opposite side of the lower panel, one end of the support arm is rotatably connected to the part of the transfer platform on the opposite side of the lower panel, and the other end is rotatably connected to the curved rod.

Preferably, the transfer table is provided with a through hole on the opposite side of the lower panel, the support arm is fixed with a slide bar, and the slide bar passes through the through hole and is pressed and slidably connected with the lower panel.

Preferably, the support arm is provided with a sliding slot along the axial direction, and the curved rod is provided with a sliding column. The sliding post is inserted into the chute and slides along the chute.

Preferably, the sliding column is a stud screwed with a curved rod, and the curved rod is screwed with a polygonal nut that slides with the chute but cannot rotate on the other side of the chute.

Preferably, the included angle between the two arms of the curved rod is 110-130°.

Compared with the prior art, the beneficial effects of the utility model are:

1. The folding screen bending linkage mechanism achieves a large-angle bending of the folding screen through the cooperation of the curved rod, the support rod, the rotating groove, and the sliding column. Second, when the folding screen is fully opened or fully folded and closed, the curved rod can provide a reverse force to form a lock. The problems existing in the existing non-locking, frictional locking and spring ball locking are overcome.

2. The bending linkage mechanism of the folding screen can adjust the force required for bending and contact locking according to user habits.

Description of drawings

Fig. 1 is the structure schematic diagram when the utility model is folded 0°;

Fig. 2 is a structural schematic diagram when the utility model is folded at 45°;

Fig. 3 is a structural schematic diagram when the utility model is folded at 90°;

Fig. 4 is a structural schematic diagram when the utility model is folded at 135°;

Fig. 5 is a structural schematic diagram when the utility model is folded 180°;

Figure 6 is a schematic diagram of the enlarged structure at A in Figure 2;

Fig. 7 is a structural schematic diagram of the rotating cylinder of the utility model;

Fig. 8 is a schematic diagram of a back-facing structure of a chute of the present invention.

In the figure: 1, sliding panel; 2, upper panel; 3, support arm; 301, sliding groove; 4, chute; 5, rotating cylinder; 6, curved rod; 7, rotating seat; 8, rotating groove; 9, Rotation column; 12, lower panel; 13, transfer table; 14, slide bar; 15, slide column; 16, polygonal nut.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1

A folding screen bending linkage mechanism, as shown in Figure 1-7, includes a sliding panel 1, a lower panel 12, and an upper panel 2, the sliding panel 1 can slide relative to the lower panel 12, and the outer surface of the upper panel 2 A rotating cylinder 5 is fixedly connected, and the inner surfaces of the left and right sides of the rotating cylinder 5 are fixedly connected with a rotating column 9, and the upper panel 2 is fixed on the lower panel 12 along the semicircular The rotating groove 8 is rotated by 0-180° relative to the lower panel 12 and the sliding panel 1 . The outer surfaces of the left and right sides of the sliding panel 1 are rotatably connected with support arms 3, the outer surface of the rotating cylinder 5 is rotatably connected with a curved rod 6, and the curved rod 6 is rotatably connected with the support arm 3, and when the upper panel 2 When the relative sliding panel 1 is folded at 0° or the upper panel 2 is opened at 180° relative to the sliding panel 1, one arm of the curved rod 6 is coaxial with the support arm 3 and arranged along the longitudinal axis of the sliding panel 1, and the curved rod 6 The other arm is obliquely facing the direction of the bottom corner of the rotating groove 8 .

At this time, the folding screen is fixed on the right side surface of the sliding panel 1 and the upper panel 2 as shown in FIG. 1 .

The working process of the linkage mechanism is:

When in the fully open state as shown in Figure 1, one arm of the curved rod 6 is coaxial with the support arm 3 and arranged along the longitudinal axis of the sliding panel 1, and the other arm of the curved rod 6 is inclined towards the direction of the rotation groove 8. bottom corner direction. At this time, under the frictional force of the sliding panel 1 or the tension of the folding screen or the pressure of the user's hand, the curved rod 6 provides a reverse support force relative to the rotation direction of the upper panel 2 to form a certain locking effect, so the upper panel 2 The rotation will not occur under the action of a small external force, effectively avoiding the uncontrolled sudden bending of the upper panel 2 .

When it is necessary to change the upper panel 2 relative to the sliding panel 1 from the open state in Fig. 1 to the closed state: firstly apply a force to the lower right direction in Fig. 1 to the upper panel 2, so that the curved rod 6 is first forced to move to the left, Release the locking effect. At the same time, the rotating cylinder 5 rotates along the rotating groove 8 on the outer surface of the rotating base 7 under the limiting action of the rotating column 9 . At this time, the curved rod 6 drives the support arm 3 to lift up under the action of the rotation of the rotating cylinder 5, and the support arm 3 drives the sliding panel 1 to move upward relative to the lower panel 12, thereby causing the folding screen to bend in opposite directions until The folding shown in Figure 5 is complete.

When turning to the folded state as shown in Figure 5, the support arm 3 is in a vertical state, and one arm of the curved rod 6 is coaxial with the support arm 3 and arranged along the longitudinal axis of the sliding panel 1, and the curved rod 6 is in addition One arm is obliquely facing the direction of the bottom corner of the rotating groove 8 . At this time, under the friction force of the sliding panel 1 or the tension of the folding screen or the pressure of the user's hand, the curved rod 6 provides a reverse support force relative to the rotation direction of the upper panel 2 to form a certain locking effect, so the upper panel 2 It will rotate due to normal vibration (such as walking, riding, etc.), which significantly reduces the possibility of the folding screen colliding with each other due to normal vibration, and protects the folding screen.

Example 2

Based on the folding screen bending linkage mechanism of Embodiment 1, as shown in Figures 1-5, there are transfer platforms 13 extending to the opposite sides of the lower panel 12 on the outer surfaces of both sides of the sliding panel 1, and one end of the support arm 3 is connected to The part of the transfer table 13 located on the opposite side of the lower panel 12 is rotatably connected, and the other end is rotatably connected with the curved rod 6 .

Specifically: the transfer table 13 is provided with a through hole on the opposite side of the lower panel 12, the support arm 3 is screwed and fixed with a slide bar 14, and the slide bar 14 passes through the through hole and slides against the lower panel 12 connect.

The structure is simple and enables the sliding panel to slide stably on the lower panel, and at the same time facilitates the replacement and maintenance of components.

Example 3

Based on the folding linkage mechanism of the folding screen in Embodiment 1, as shown in FIG. 6 , the support arm 3 is provided with a chute 4 along the axial direction, and the curved rod 6 is provided with a sliding column 15 . The sliding column 15 is inserted into the chute 4 and slides along the chute 4 .

When the user uses the smart device, the upper panel 2 is generally fully opened to fully open the folding screen. At this time, when the user operates the smart device, the lower panel 12 may slide relative to the sliding panel 1 . The addition of the chute 4 can prevent the curved bar 6 from moving immediately when such relative sliding occurs, thereby maintaining the open state of the locked foldable screen of the curved bar 6 .

Example 4

Based on the folding screen bending linkage mechanism of Embodiment 3, as shown in Figure 8, the sliding column 15 is a stud screwed with the curved rod 6, and the curved rod 6 is screwed with the sliding groove 4 on the other side. The slot 4 slides the polygonal nut 16. The support arm 3 is provided with a sliding groove 301 matching the polygonal nut 16 on the side of the sliding groove 4 provided with the polygonal nut 16 , and the polygonal nut 16 can slide but cannot rotate in the sliding groove 301 . The sliding column 15 is provided with a cross groove or a slot or a hexagonal groove on one side of the curved rod 6 as required.

At this time, the user can adjust the pressure between the curved rod 6 and the chute 4 by rotating the sliding column 15 as required, thereby changing the friction between the curved rod 6 and the support arm 3, and correspondingly changing the pressure between the curved rod 6 and the support arm 3. The relative rotation and relative sliding resistance between the arms 3. Furthermore, it can be adjusted to the user's usual strength when opening or closing the folding screen, as well as the strength when the folding screen is locked, according to the user's habit.

According to an embodiment of the present invention, the included angle between the two arms of the curved rod 6 is 110-130°. This setting can make the curved rod 6 provide a good reverse force and lock when the folding screen is fully opened or fully folded, and the user does not need a lot of force to overcome the reverse force to release the lock end.

The selection of each device for the use of the above-mentioned equipment is different, and it is selected and used according to the actual situation, and various parameters are referred to, according to the function of the equipment used and the effect achieved.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a folding screen link gear of buckling, includes slip panel (1), lower panel (12), top panel (2), but slip panel (1) slip its characterized in that relative lower panel (12): the outer surface of the upper panel (2) is fixedly connected with a rotating cylinder (5), the inner surfaces of the left side and the right side of the rotating cylinder (5) are fixedly connected with rotating columns (9), and the upper panel (2) rotates by 0-180 degrees relative to the lower panel (12) and the sliding panel (1) along a semicircular rotating groove (8) fixed on the lower panel (12) through the rotating cylinder (5) and the rotating columns (9);

the left and right sides surface of slip panel (1) all rotates and is connected with support arm (3), rotate section of thick bamboo (5) surface rotation and be connected with knee (6), knee (6) and support arm (3) rotate and are connected, and when panel (2) are 0 folding or panel (2) are 180 opening relatively to panel (1) that slide relatively to panel (1), an arm and support arm (3) coaxial and follow the face longitudinal axis setting of panel (1) of sliding of knee (6), another arm slope orientation of knee (6) rotates the base angle direction of groove (8).

2. The folding screen bending linkage of claim 1, wherein: the outer surfaces of the two sides of the sliding panel (1) are provided with switching tables (13) extending to the opposite sides of the lower panel (12), one end of the supporting arm (3) is rotationally connected with the part of the switching table (13) located at the opposite sides of the lower panel (12), and the other end of the supporting arm is rotationally connected with the bent rod (6).

3. The folding screen bending linkage of claim 2, wherein: the switching platform (13) is provided with a through hole at the part of the opposite side surface of the lower panel (12), the supporting arm (3) is fixedly provided with a sliding rod (14), and the sliding rod (14) passes through the through hole to be in propping sliding connection with the lower panel (12).

4. The folding screen bending linkage of claim 1, wherein: the supporting arm (3) is axially provided with a sliding groove (4), and the curved rod (6) is provided with a sliding column (15); the sliding column (15) is inserted into the sliding groove (4) and slides along the sliding groove (4).

5. The folding screen bending linkage of claim 4, wherein: the sliding column (15) is a stud bolt in threaded connection with the curved rod (6), and the curved rod (6) is in threaded connection with a polygonal nut (16) which slides with the sliding groove (4) but cannot rotate on the other side of the sliding groove (4).

6. The folding screen bending linkage of claim 1, wherein: the included angle between the two arms of the curved rod (6) is 110-130 degrees.

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