CN-121993485-A - Hinge synchronous opening and closing automatic balancing supporting device capable of avoiding uneven stress damage of folding screen

Abstract

A hinge synchronous opening and closing automatic balancing supporting device for preventing uneven stress damage of a folding screen is composed of a middle frame 1, movable wings with shafts on two sides of the upper end of the middle frame, namely a left movable wing 2, a right movable wing 3 and an opening and closing control device. The front and rear ends of the rotating shaft sleeve of the left movable wing 2, which is close to the shaft, are provided with a left front driving gear 4 and a left rear driving gear 5. The front and rear ends of the rotating shaft sleeve of the right movable wing 3, which is close to the shaft, are provided with a right front driving gear 6 and a right rear driving gear 7. The front left side wall 8 and the rear side wall 9 of the frame are respectively provided with 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, and respectively provided with 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 which are respectively correspondingly sleeved on the shafts for rotation. Thus, a chain reaction stabilizing system which takes four axes of front and rear synchronous same frequency as an operation closed loop, automatically balances and mutually supports in a linkage way is formed. The folding screen has the characteristics of stable structure, synchronous opening and closing and uniform stress, and has the characteristics of effectively avoiding damage such as liquid leakage caused by folding damage due to uneven stress when the folding screen is folded, and hovering at any angle.

Inventors

• TIAN MIN

Assignees

• 田珉

Dates

Publication Date

20260508

Application Date

20241108

Claims (3)

1. 1. The hinge synchronous opening and closing automatic balancing support device for preventing uneven stress of a folding screen is composed of a middle frame (1), a left movable wing (2) which is a movable wing with shafts at two sides of the middle frame, a right movable wing (3) and an opening and closing control device, and is characterized in that a gear with finer tooth pitch integrated with the left movable wing (2), namely a left front driving gear (4), is arranged at the front end of a rotating shaft sleeve of the left movable wing (2), a gear with finer tooth pitch integrated with the left movable wing (2), namely a left rear driving gear (5) is arranged at the rear end of a rotating shaft sleeve of the left movable wing (2), the left front driving gear (4) and the left rear driving gear (5) are identical in penetrating axis, correspond to each other in front-rear direction, synchronously rotate along with the moving angle of the left movable wing (2), a gear with the front end of a rotating shaft sleeve of the right movable wing (3), namely a right front driving gear (6), a gear with finer tooth pitch integrated with the right movable wing (3), a gear with the front end of the rotating shaft sleeve of the right movable wing (3), a front driving gear (6) and the front driving gear (7) which are identical in rotation with the front-rear end of the front driving gear (6) and the front-rear driving gear (7) which are identical in rotation The right rear driving gear (7) is bilaterally symmetrical and corresponds to the front driving gear, and is respectively protruded out of the top end side wall of the middle frame (1), namely is protruded out of the frame front side wall (8) and the frame rear side wall (9), the thickness of each protruded gear is about millimeter, the diameter of each gear is smaller than or equal to the diameter of the shaft sleeve, is about 3-5 millimeters, and moves along with the shaft sleeve and the wing; The front side wall (8) of the frame is provided with a shaft which is arranged near the left side in the eccentric center, namely a front left side shaft (10), a shaft which is arranged near the right side in the eccentric center, namely a front right side shaft (11), the front left side shaft (10) and the front right side shaft (11) are horizontally arranged left to right, two driven movable gears which are respectively sleeved in the front left side shaft (10) and the front right side shaft (11) in a free rotation mode, two teeth are matched and interacted and meshed, and the diameters of the front left driven gear (12) and the front right driven gear (13) are consistent and slightly larger than the diameters of a left front driving gear (4) and a right front driving gear (6) which are corresponding to the upper part and the lower part, and the tooth pitches are the same and are closely meshed with the front left driven gear (12) and the right front driving gear (6); The rear side wall (9) of the frame is provided with a shaft which is arranged near the left side and is a rear left side shaft (14), a shaft which is arranged near the right side and is a rear right side shaft (15), the rear left side shaft (14) and the rear right side shaft (15) are horizontally arranged left to right, two driven movable gears which are a rear left driven gear (16) and a rear right driven gear (17) are arranged, holes are formed in the middle of 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) are respectively correspondingly sleeved in the rear left side shaft (14) and the rear right side shaft (15) to freely rotate, two teeth are arranged side by side, are matched and interacted with each other to be meshed, and the diameters of the rear left driven gear (16) and the rear right driven gear (17) are consistent, and are slightly larger than the diameters of the upper and lower corresponding left rear driving gear (5) and the right driving gear (7) and are closely meshed with the same pitch; In combination, the left front driving gear (4), the front left driven gear (12) and the right front driving gear (6), the front right driven gear (13) are meshed with each other and are closely connected, and the distances between the front left side shaft (10) and the front right side shaft (11) and between the right front driving gear (6) and the front right driven gear (13) are determined; the right rear driving gear (7), the rear right driven gear (17) and the left rear driving gear (5) are meshed with each other, the rear right driven gear (17) is closely connected, the distance between the rear left side shaft (14) and the rear right side shaft (15) and the distance between the left rear driving gear (5) and the rear left driven gear (16) are determined, so far, a chain reaction stabilizing system which uses four axes with synchronous same frequency and front and rear as a running closed loop and automatic balancing and mutually linked support is formed, namely a supporting system which enables the left movable wing (2) and the right movable wing (3) to synchronously open and close and stably and uniformly run is formed, namely, as long as the left movable wing (2) moves, the right movable wing (3) moves along, or vice versa, or one of the gears is stressed, the chain reaction is caused to cause the interaction of the whole system, the open and close synchronization and the mutual support are basically eliminated, the flexible folding screen covered on the flexible folding screen is caused by uneven stress during the open and close degree of the bending friction is generated if the coordination between the tooth shafts is increased, the structure can play a key damping role in the interaction hovering of the left wing and the right wing.
2. 2. The automatic balanced support device for synchronous opening and closing of a hinge for preventing uneven stress damage of a folding screen according to claim 1 is characterized in that a front left shaft limit flange (18) and a front right shaft limit flange (19) are respectively arranged at the top of a front left shaft (10) and the front right shaft (11), and are protruded to limit a front left driven gear (12) and a front right driven gear (13) sleeved on the front left shaft limit flange respectively so as to enable the front left driven gear and the front right driven gear to rotate against a front side wall (8) of a frame and not to be separated from the shaft, and a rear left shaft limit flange (20) and a rear right shaft limit flange (21) are respectively arranged at the top of a rear left shaft (14) and a rear right shaft (15) so as to limit a rear left driven gear (16) and a rear right driven gear (17) sleeved on the front left shaft limit flange respectively, so that the front left driven gear and the front right driven gear are respectively abutted against a rear left driven gear (12) of the frame and the rear driven gear and cannot be separated from the shaft.
3. 3. The automatic balanced support device for synchronous opening and closing of hinges for preventing uneven stress damage of folding screens according to claim 1 is characterized in that a vertical opening which is not enough is formed in the middle of a front left shaft (10) and a front right shaft (11), namely a front left shaft opening (22) and a front right shaft opening (23), the function of the automatic balanced support device is to utilize elastic spaces formed by the openings to facilitate a front left driven gear (12) and a front right driven gear (13) to enter the respective front left shaft (10) and front right shaft (11), and a vertical opening which is not enough is formed in the middle of a rear left shaft (14) and a rear right shaft (15), namely a rear left shaft opening (24) and a rear right shaft opening (25), and the function of the automatic balanced support device is to utilize the elastic spaces formed by the openings to facilitate a rear left driven gear (16) and a rear right driven gear (17) to enter the respective rear left shaft (14) and a rear right shaft (15).

Description

Hinge synchronous opening and closing automatic balancing supporting device capable of avoiding uneven stress damage of folding screen Technical Field A hinge synchronous opening and closing automatic balance supporting device capable of avoiding uneven stress damage of a folding screen relates to the field of electronic display folding equipment manufacturing. Background The hinge of the existing electronic folding display device is a flexible folding screen, is formed by stacking tens of hundreds of compact structural members such as multiple gears, multiple springs and the like, has complex manufacturing process, low yield and high cost, and is inevitably subjected to uneven stress during opening even so as to cause deflection damage of the screen. Object of the Invention The invention aims to design a device for protecting a screen by uniformly supporting a hinge with synchronous opening and closing through shaft-tooth linkage. Disclosure of Invention The invention is composed of a middle frame 1, a left movable wing 2, a right movable wing 3 and an opening and closing control device, wherein the left movable wing and the right movable wing are made on two sides of the upper end of the middle frame and are provided with shafts. The front end of the rotating shaft sleeve of the shaft leaning on the left movable wing 2 is provided with a gear with finer tooth pitch integrated with the left movable wing 2, namely a left front driving gear 4, and the rear end of the rotating shaft sleeve of the shaft leaning on the same side of the left movable wing 2 is provided with a gear with finer tooth pitch integrated with the left movable wing 2, namely a left rear driving gear 5. The left front driving gear 4 and the left rear driving gear 5 have the same axle center penetrated by the two gears, and correspond to each other front and back, and synchronously rotate along with the axle along with the movable angle of the left movable wing 2. The front end of the rotating shaft sleeve of the shaft leaning on the right movable wing 3 is provided with a gear with finer tooth pitch integrated with the right movable wing 3, namely a right front driving gear 6, and the rear end of the rotating shaft sleeve of the shaft leaning on the same side of the right movable wing 3 is provided with a gear with finer tooth pitch integrated with the right movable wing 3, namely a right rear driving gear 7. The axle centers of the right front driving gear 6 and the right rear driving gear 7 which are penetrated are the same, and the front and the rear correspond to each other, and synchronously rotate along with the axle along with the movable angle of the right movable wing 3. An axle is provided on the front wall 8 of the frame on the left side of the centre, i.e. the front left axle 10, and an axle is provided on the right side of the centre, i.e. the front right axle 11. The front left side shaft 10 and the front right side shaft 11 are arranged horizontally one by one. Two passive movable gears, namely a front left passive gear 12 and a front right passive gear 13 are formed. The front left driven gear 12 and the front right driven gear 13 are provided with holes in the middle and are sleeved in the front left shaft 10 and the front right shaft 11 respectively to rotate freely. An axle is provided on the frame rear wall 9 on the left side of the center, i.e. the rear left axle 14, and an axle is provided on the right side of the center, i.e. the rear right axle 15. The rear left axle 14 and the rear right axle 15 are arranged horizontally one by one. Two passive movable gears, namely a rear left passive gear 16 and a rear right passive gear 17, are formed. The rear left driven gear 16 and the rear right driven gear 17 are provided with holes in the middle and are sleeved in the rear left shaft 14 and the rear right shaft 15 respectively to rotate freely. In combination, the left front driving gear 4, the front left driven gear 12 and the right front driving gear 6, and the front right driven gear 13 are meshed with each other and are closely connected. This also determines the distance between the front left axle 10 and the front right axle 11, between the right front driving gear 6 and the front right driven gear 13. The right rear driving gear 7, the rear right driven gear 17 and the left rear driving gear 5 are meshed with each other, and the rear right driven gear 17 is closely connected with each other. This also determines the distance between the rear left axle 14 and the rear right axle 15, between the left rear driving gear 5 and the rear left driven gear 16. The four axes which are separated from each other but are synchronous and have the same frequency are used as running tracks, and a linked ring-closed chain reaction system is formed, namely, a supporting system for synchronously and stably opening and closing the left movable wing 2 and the right movable wing 3 and uniformly running is formed, namely, as long a