Hinge synchronous opening and closing automatic balance supporting device capable of preventing folding screen from being damaged due to uneven stress

Abstract

The invention relates to a hinge synchronous opening and closing automatic balancing support device for preventing a folding screen from being damaged due to uneven stress. The hinge synchronous opening and closing automatic balancing support device consists of a middle frame 1, movable wings with shafts, namely a left movable wing 2 and a right movable wing 3, and an opening and closing control device, a left front driving gear 4 and a left rear driving gear 5 are arranged at the front end and the rear end of a rotating shaft sleeve close to a shaft of the left movable wing 2; a right front driving gear 6 and a right rear driving gear 7 are arranged at the front end and the rear end of a rotating shaft sleeve of the right movable wing 3. A front left side shaft 10, a front right side shaft 11, a rear left side shaft 14 and a rear right side shaft 15, a front left driven gear 12, a front right driven gear 13, a rear left driven gear 16 and a rear right driven gear 17 are arranged on the frame front side wall 8 and the frame rear side wall 9 respectively, and the front left driven gear 12, the front right driven gear 13, the rear left driven gear 16 and the rear right driven gear 17 are correspondingly sleeved in respective shafts to rotate respectively. Therefore, a chain reaction stabilizing system which takes the front and rear synchronous and same-frequency four axes as an operation closed loop, is automatically balanced and is in mutual linkage support is formed. The folding screen is stable in structure, can be opened and closed synchronously, is stressed uniformly, and has the characteristics of effectively avoiding damage, liquid leakage and the like caused by non-uniform stress during folding of the folding screen and hovering at any angle.

Description

Technical Field

[0001] An automatic balancing support device for synchronous opening and closing of hinges to avoid damage caused by uneven stress on folding screens relates to the field of electronic display folding device manufacturing. Background Technology

[0002] The hinges of existing electronic folding display devices rely on flexible folding screens for stability. They are made up of dozens or even hundreds of tightly packed structural components such as multiple teeth, multiple wheels, and multiple springs. The manufacturing process is complex, the yield rate is low, and the cost is high. Even so, uneven force is still inevitable when opening and closing, which can cause screen torsion damage.

[0003] Purpose of the invention

[0004] The purpose of this invention is to design a hinge device that provides uniform support and protection for a screen by means of shaft-tooth linkage and synchronous opening and closing. Summary of the Invention

[0005] This invention comprises a central frame 1 and movable wings with shafts on both sides of its upper end, namely a left movable wing 2 and a right movable wing 3, and an opening and closing control device. A fine-pitch gear, the left front drive gear 4, is integral with the left movable wing 2 at the front end of the rotating sleeve near the shaft. A fine-pitch gear, the left rear drive gear 5, is integral with the left movable wing 2 at the rear end of the rotating sleeve near the shaft on the same side of the left movable wing 2. The left front drive gear 4 and the left rear drive gear 5 are pierced by the same shaft, corresponding to each other, and rotate synchronously with the shaft as the left movable wing 2 moves. A fine-pitch gear, the right front drive gear 6, is integral with the right movable wing 3 at the front end of the rotating sleeve near the shaft. A fine-pitch gear, the right rear drive gear 7, is integral with the right movable wing 3 at the rear end of the rotating sleeve near the shaft on the same side of the right movable wing 3. The right front drive gear 6 and the right rear drive gear 7 are connected by the same shaft, corresponding to each other, and rotate synchronously with the shaft as the right movable wing 3 moves. A shaft, the front left shaft 10, is located slightly to the left of the center of the front sidewall 8 of the frame, and a shaft, the front right shaft 11, is located slightly to the right of the center. The front left shaft 10 and the front right shaft 11 are arranged horizontally, one on the left and one on the right. Two driven gears are provided: the front left driven gear 12 and the front right driven gear 13. The front left driven gear 12 and the front right driven gear 13 have holes in the middle, allowing them to rotate freely within the front left shaft 10 and the front right shaft 11, respectively. A shaft, the rear left shaft 14, is located slightly to the left of the center of the rear sidewall 9 of the frame, and a shaft, the rear right shaft 15, is located slightly to the right of the center. The rear left shaft 14 and the rear right shaft 15 are arranged horizontally, one on the left and one on the right. Two driven gears are provided: the rear left driven gear 16 and the rear right driven gear 17. The rear left driven gear 16 and rear right driven gear 17 have holes in the middle, allowing them to rotate freely within the rear left shaft 14 and rear right shaft 15, respectively. Together, the left front driving gear 4, the front left driven gear 12, the right front driving gear 6, and the front right driven gear 13 mesh with each other, maintaining close contact. This also determines the distance between the front left shaft 10 and the front right shaft 11, and between the right front driving gear 6 and the front right driven gear 13. Similarly, the right rear driving gear 7 and rear right driven gear 17 mesh with the left rear driving gear 5 and rear right driven gear 17, maintaining close contact. This also determines the distance between the rear left shaft 14 and the rear right shaft 15, and between the left rear driving gear 5 and the rear left driven gear 16. Thus, a closed-loop interlocking system is formed, with two separate but synchronously operating axes as the running trajectories. This system is a support system in which the left movable wing 2 and the right movable wing 3 open and close synchronously and operate smoothly and evenly. As soon as the left movable wing 2 moves, the right movable wing 3 follows suit, and vice versa. Alternatively, if one of the gears is subjected to force and moves, a chain reaction will cause the entire system to interact, opening and closing synchronously and supporting each other.At the top of the front left axle 10 and the front right axle 11, respectively, there are protruding front left axle limiting flanges 18 and 19, which respectively limit the front left driven gear 12 and the front right driven gear 13 fitted on them, ensuring they rotate against the front sidewall 8 of the frame and cannot disengage from the axle. At the top of the rear left axle 14 and the rear right axle 15, respectively, there are protruding rear left axle limiting flanges 20 and 21, which respectively limit the rear left driven gear 16 and the rear right driven gear 17 fitted on them, ensuring they rotate against the rear sidewall 9 of the frame and cannot disengage from the axle. At the middle of the front left axle 10 and the front right axle 11, there is a vertical notch that does not reach the bottom, namely the front left axle notch 22 and the front right axle notch 23. The function of these notches is to utilize the elastic space created by the notches to facilitate the entry of the front left driven gear 12 and the front right driven gear 13 into their respective front left axle 10 and front right axle 11. There is a vertical notch that does not reach the bottom in the middle of the rear left shaft 14 and the rear right shaft 15, namely the rear left shaft notch 24 and the rear right shaft notch 25. The function of the notch is to make use of the elastic space formed by the notch to facilitate the rear left driven gear 16 and the rear right driven gear 17 to enter their respective rear left shaft 14 and rear right shaft 15.

[0006] The present invention has a stable structure, opens and closes synchronously, and is evenly stressed, which effectively avoids damage such as folding and leakage caused by uneven stress during folding of the foldable screen, and has the characteristics of hovering at any angle. Attached Figure Description

[0007] Figure 1 This is the main view of the active state of the present invention.

[0008] Figure 2 This is a plan view from below of the present invention.

[0009] Figure 3 This is a side view of the present invention.

[0010] Figure 4 This is a partial view of the side shaft of the present invention. Detailed Implementation

[0011] Example: This example consists of a central frame 1 and movable wings with shafts on both sides of its upper end, namely the left movable wing 2 and the right movable wing 3, as well as an opening and closing control device. A fine-pitch gear, the left front drive gear 4, is integral with the left movable wing 2 at the front end of the rotating sleeve near the shaft. A fine-pitch gear, the left rear drive gear 5, is integral with the left movable wing 2 at the rear end of the rotating sleeve near the shaft on the same side of the left movable wing 2. The left front drive gear 4 and the left rear drive gear 5 are pierced by the same shaft, corresponding to each other, and rotate synchronously with the shaft as the left movable wing 2 moves. A fine-pitch gear, the right front drive gear 6, is integral with the right movable wing 3 at the front end of the rotating sleeve near the shaft. A fine-pitch gear, the right rear drive gear 7, is integral with the right movable wing 3 at the rear end of the rotating sleeve near the shaft on the same side of the right movable wing 3. The right front drive gear 6 and the right rear drive gear 7 are pierced by the same shaft, corresponding to each other front and rear, and rotate synchronously with the shaft according to the movement angle of the right movable wing 3. The left front drive gear 4, left rear drive gear 5, right front drive gear 6, and right rear drive gear 7 are symmetrical and corresponding, and each protrudes beyond the top sidewall of the middle frame 1, that is, beyond the front sidewall 8 and the rear sidewall 9 of the frame. The thickness of each protruding gear is about millimeters, and the diameter of the gear is less than or equal to the diameter of the bushing, about 3-5 millimeters, and moves as an integral part of the bushing and the wing. There is a shaft on the left side of the center of the front sidewall 8 of the frame, namely the front left shaft 10, and a shaft on the right side of the center, namely the front right shaft 11. The front left shaft 10 and the front right shaft 11 are arranged horizontally, one on the left and one on the right. There are two driven movable gears, namely the front left driven gear 12 and the front right driven gear 13. The front left driven gear 12 and the front right driven gear 13 have holes in the middle, allowing them to rotate freely within the front left shaft 10 and the front right shaft 11, respectively. Their teeth are parallel, interlocking, and meshing closely. The front left driven gear 12 and the front right driven gear 13 have the same diameter, slightly larger than the diameters of their corresponding left front driving gear 4 and right front driving gear 6, and have the same tooth pitch, meshing closely with each other. A shaft, the rear left shaft 14, is located slightly to the left of the center of the rear sidewall 9 of the frame, and a shaft, the rear right shaft 15, is located slightly to the right of the center. The rear left shaft 14 and the rear right shaft 15 are arranged horizontally, one on the left and one on the right. Two driven gears are also present: the rear left driven gear 16 and the rear right driven gear 17. These two gears have holes in the middle, allowing them to rotate freely within the rear left shaft 14 and the rear right shaft 15, respectively. Their teeth are parallel, interlocking, and meshing closely. The rear left driven gear 16 and rear right driven gear 17 have the same diameter, slightly larger than the diameters of their corresponding upper and lower left rear driving gears 5 and right rear driving gears 7, and have the same tooth pitch, meshing closely with each other. Combined, the left front driving gear 4, the front left driven gear 12, the right front driving gear 6, and the front right driven gear 13 mesh with each other, maintaining close contact. This also determines the distances between the front left axle 10 and the front right axle 11, and between the right front driving gear 6 and the front right driven gear 13.The right rear drive gear 7, the rear right driven gear 17, the left rear drive gear 5, and the rear right driven gear 17 mesh with each other, maintaining close contact. This also determines the distance between the rear left axle 14 and the rear right axle 15, and between the left rear drive gear 5 and the rear left driven gear 16. Thus, a stable, interconnected system is formed, with two separate but synchronously operating four axes forming a closed loop, automatically balancing and mutually supporting each other. This system ensures the smooth and uniform opening and closing of the left movable wing 2 and the right movable wing 3: whenever the left movable wing 2 moves, the right movable wing 3 moves accordingly, and vice versa. Alternatively, if one of the gears is subjected to force, a chain reaction occurs, causing the entire system to interact, opening and closing synchronously and supporting each other. This fundamentally eliminates the risk of torsional damage caused by uneven force during the opening and closing of the flexible folding screen covering it. Furthermore, if the tightness of the meshing between the gears increases, generating greater rotational friction resistance, this structure also plays a crucial damping role in the interactive hovering of the left and right wings. At the top of the front left axle 10 and the front right axle 11, respectively, there are protruding front left axle limiting flanges 18 and 19, which respectively limit the front left driven gear 12 and the front right driven gear 13 fitted on them, ensuring they rotate against the front sidewall 8 of the frame and cannot disengage from the axle. At the top of the rear left axle 14 and the rear right axle 15, respectively, there are protruding rear left axle limiting flanges 20 and 21, which respectively limit the rear left driven gear 16 and the rear right driven gear 17 fitted on them, ensuring they rotate against the rear sidewall 9 of the frame and cannot disengage from the axle. At the middle of the front left axle 10 and the front right axle 11, there is a vertical notch that does not reach the bottom, namely the front left axle notch 22 and the front right axle notch 23. The function of these notches is to utilize the elastic space created by the notches to facilitate the entry of the front left driven gear 12 and the front right driven gear 13 into their respective front left axle 10 and front right axle 11. There is a vertical notch that does not reach the bottom in the middle of the rear left shaft 14 and the rear right shaft 15, namely the rear left shaft notch 24 and the rear right shaft notch 25. The function of the notch is to make use of the elastic space formed by the notch to facilitate the rear left driven gear 16 and the rear right driven gear 17 to enter their respective rear left shaft 14 and rear right shaft 15.

Claims

1. A hinge-synchronized opening and closing automatic balancing support device to avoid damage to folding screens due to uneven force distribution, comprising a middle frame (1) and movable wings with shafts on both sides of its upper end, namely a left movable wing (2) and a right movable wing (3), and an opening and closing control device, characterized in that, A fine-pitch gear, namely the left front drive gear (4), is integral with the left movable wing (2) at the front end of the pivot sleeve near the axis. A fine-pitch gear, namely the left front drive gear (4), is integral with the left movable wing (2). A fine-pitch gear, namely the left rear drive gear (5), is integral with the left movable wing (2) at the rear end of the pivot sleeve near the axis on the same side as the left movable wing (2). The left front drive gear (4) and the left rear drive gear (5) are connected by the same axis and correspond to each other, rotating synchronously with the axis as the left movable wing (2) moves. A fine-pitch gear, namely the right front drive gear (6), is integral with the right movable wing (3) at the front end of the pivot sleeve near the axis. A fine-pitch gear, namely the right front drive gear (6), is integral with the right movable wing (3). A fine-pitch gear, namely the right front drive gear (6), is integral with the right movable wing (3) at the rear end of the pivot sleeve near the axis on the same side as the right movable wing (3). The right movable wing (3) has a finely spaced gear, namely the right rear drive gear (7), the right front drive gear (6), and the right rear drive gear (7). The shafts through which they are connected are the same, corresponding to each other, and they rotate synchronously with the shafts according to the movement angle of the right movable wing (3). The left front drive gear (4), the left rear drive gear (5), the right front drive gear (6), and the right rear drive gear (7) are symmetrical and correspond to each other, and each protrudes beyond the top sidewall of the middle frame (1), that is, beyond the front sidewall (8) and the rear sidewall (9) of the frame. The thickness of each protruding gear is about millimeters, and the diameter of the gear is less than or equal to the diameter of the bushing, about 3-5 millimeters. It moves with the bushing and the wing as one. On the front sidewall (8) of the frame, there is a shaft on the left side of the center, namely the front left shaft (10), and on the right side of the center, there is a shaft on the right side, namely the front right shaft (11). The front left shaft (10) and the front right shaft (11) are arranged horizontally, one on the left and one on the right. There are two driven moving gears, namely the front left driven gear (12) and the front right driven gear (13). The front left driven gear (12) and the front right driven gear (13) have holes in the middle, which are respectively fitted into the front left shaft (10) and the front right shaft (11) and rotate freely. The two teeth are side by side, matched and interact, and closely mesh. The diameter of the front left driven gear (12) and the front right driven gear (13) is the same, which is slightly larger than the diameter of the left front driving gear (4) and the right front driving gear (6) above and below them, and the tooth pitch is the same and closely meshes with them. On the rear sidewall (9) of the frame, there is a shaft on the left side of the center, namely the rear left shaft (14), and on the right side of the center, there is a shaft on the right side, namely the rear right shaft (15). The rear left shaft (14) and the rear right shaft (15) are arranged horizontally, one on the left and one on the right. There are two driven moving gears, namely the rear left driven gear (16) and the rear right driven gear (17). The rear left driven gear (16) and the rear right driven gear (17) have holes in the middle, which are respectively fitted into the rear left shaft (14) and the rear right shaft (15) and rotate freely. The two teeth are side by side, matched and interact, and closely mesh. The diameter of the rear left driven gear (16) and the rear right driven gear (17) is the same, which is slightly larger than the diameter of the left rear driving gear (5) and the right rear driving gear (7) above and below it, and the tooth pitch is the same and closely meshes with them. When combined, the left front drive gear (4), the front left driven gear (12), the right front drive gear (6), and the front right driven gear (13) mesh with each other and are closely connected. This also determines the distance between the front left axle (10) and the front right axle (11), and between the right front drive gear (6) and the front right driven gear (13). The right rear drive gear (7), the rear right driven gear (17), the left rear drive gear (5), and the rear right driven gear (17) mesh with each other and are closely connected. This also determines the distance between the rear left axle (14) and the rear right axle (15), and between the left rear drive gear (5) and the rear left driven gear (16). Thus, a synchronous and synchronous gear is formed between the front and rear. The four axes form a closed-loop, automatically balanced, and mutually supportive chain reaction stabilization system, namely the support system for the synchronous opening and closing of the left movable wing (2) and the right movable wing (3) to operate smoothly and evenly: as soon as the left movable wing (2) moves, the right movable wing (3) moves accordingly, and vice versa, or one of the gears is subjected to force and moves, causing a chain reaction that triggers the interaction of the entire system, opening and closing synchronously and supporting each other. This fundamentally eliminates the torsional damage caused by uneven force during the opening and closing of the flexible folding screen covering it; at the same time, if the tightness of the fit between each gear axis increases, generating greater rotational friction resistance, this structure can also play a key damping role in the interactive hovering of the left and right wings.

2. The hinge synchronous opening and closing automatic balancing support device for avoiding damage to folding screens due to uneven force distribution, as described in claim 1, is characterized in that... Front left shaft limiting flange (18) and front right shaft limiting flange (19) are respectively made on the top of the front left shaft (10) and the front right shaft (11), protruding out to limit the front left driven gear (12) and the front right driven gear (13) fitted on them, so that they can rotate against the front side wall (8) of the frame and cannot be dislodged from the shaft; rear left shaft limiting flange (20) and rear right shaft limiting flange (21) are respectively made on the top of the rear left shaft (14) and the rear right shaft (15), protruding out to limit the rear left driven gear (16) and the rear right driven gear (17) fitted on them, so that they can rotate against the rear side wall (9) of the frame and cannot be dislodged from the shaft.

3. The hinge synchronous opening and closing automatic balancing support device for avoiding damage to folding screens due to uneven force distribution, as described in claim 1, is characterized in that... There is a vertical notch that does not reach the bottom in the middle of the front left shaft (10) and the front right shaft (11), namely the front left shaft notch (22) and the front right shaft notch (23). The function of the notch is to make use of the elastic space formed by the notch to facilitate the front left driven gear (12) and the front right driven gear (13) to enter their respective front left shaft (10) and front right shaft (11). There is a vertical notch that does not reach the bottom in the middle of the rear left shaft (14) and the rear right shaft (15), namely the rear left shaft notch (24) and the rear right shaft notch (25). The function of the notch is to make use of the elastic space formed by the notch to facilitate the rear left driven gear (16) and the rear right driven gear (17) to enter their respective rear left shaft (14) and rear right shaft (15).

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