CN-115460309-B - Mobile phone external folding screen rotating shaft

Abstract

The invention relates to a mobile phone external folding screen rotating shaft, which is provided with a connecting base, wherein connecting plates are arranged on two sides of the connecting base, a plurality of rotating assemblies are arranged on the connecting base, the connecting plates on two sides are rotationally connected to the connecting base, each rotating assembly comprises a limiting plate, a positioning shaft, rotating plates, sliding plates and a reset spring, each rotating plate is rotationally connected to the corresponding positioning shaft, the sliding direction of each sliding plate is parallel to the axis of the positioning shaft, a first convex tooth part circumferentially distributed on the sliding plate along the axis of the corresponding positioning shaft is arranged on each sliding plate, a second convex tooth part corresponding to each first convex tooth part and capable of being matched and connected with the first convex tooth part is arranged on each rotating plate, and each connecting plate is rotationally connected to the connecting base through the matching of the rotating plates and the positioning shaft and is used for continuously applying force to each sliding plate through the reset spring and matching each first convex tooth part with the corresponding second convex tooth part. The invention has smart structure, and is convenient and practical.

Inventors

• Tian Hongshuai
• CHEN RONG
• ZHU WEIDONG

Assignees

• 江苏精研动力系统有限公司

Dates

Publication Date

20260508

Application Date

20220923

Claims (5)

1. 1. The mobile phone outer folding screen rotating shaft is characterized in that connecting plates which can be connected with a mobile phone screen are arranged on two sides of the connecting base, a plurality of rotating assemblies which are distributed on the connecting base along the extending direction of the connecting base are arranged on the connecting base, the connecting plates on two sides are connected on the connecting base in a rotating way through the rotating assemblies, the rotating assemblies comprise two limiting plates which are oppositely arranged, positioning shafts which are fixed on the two limiting plates and are arranged in parallel, two rotating plates which are oppositely arranged, two sliding plates which are oppositely arranged and are connected on the two positioning shafts in a sliding way, and reset springs which are sleeved on the positioning shafts are arranged in parallel, the rotating plates are connected on the corresponding positioning shafts in a rotating way along the axes of the corresponding positioning shafts, one end of each rotating plate is pressed on the limiting plate, the sliding direction of each sliding plate is parallel to the axes of the positioning shafts, each reset spring is arranged between the two sliding plates, a first tooth part which is correspondingly arranged on the sliding plate and is correspondingly matched with a second tooth part which is correspondingly arranged on the connecting plate in a sliding way, and can be matched with a convex tooth part which is correspondingly arranged on the connecting plate through a first tooth part which is matched with the corresponding convex tooth part which is arranged on the connecting plate; The rotating plate comprises two rotating sleeves which can be rotationally connected to the positioning shaft after the same positioning shaft passes through the rotating sleeve and a plate body which can connect the two rotating sleeves into a whole, one end of each rotating sleeve is pressed against the corresponding limiting plate, each second convex tooth part is arranged at one end of each rotating sleeve far away from the limiting plate, each second convex tooth part is coaxially arranged with the rotating sleeve, the sliding plate and the reset spring which are oppositely arranged are positioned between the two rotating sleeves, and the rotating plate presses the limiting plate through the rotating sleeve, the reset spring continuously applies force to each sliding plate and the self-locking after the first convex tooth part and the second convex tooth part are matched for rotation; the outer wall of any rotating sleeve on the same positioning shaft is provided with a first transmission tooth part which is integrally formed with the rotating sleeve and is coaxially arranged, the outer wall of the opposite rotating sleeve on the other positioning shaft is provided with a second transmission tooth part which is correspondingly matched with the first transmission tooth part, and the oppositely arranged rotating plates are oppositely rotated through the transmission matching of the first transmission tooth part and the second transmission tooth part; The connecting base and each connecting plate are respectively provided with a turnover base, each turnover base extends to the other end along one end of the connecting base, a limiting assembly is arranged between each connecting block and each connecting plate, each limiting assembly comprises a middle block fixed on the turnover base, a first turnover arc block and a second turnover arc block fixed on two sides of the middle block, each connecting block is provided with a first turnover arc groove corresponding to the first turnover arc block, each connecting plate is provided with a second turnover arc groove corresponding to the second turnover arc block, and each connecting plate is rotationally connected to the connecting base through the rotation fit of the second turnover arc block and the second turnover arc groove along a virtual shaft and the rotation fit of the first turnover arc block and the first turnover arc groove along the virtual shaft; the two ends of the connecting base are respectively provided with a first arc end cover, the two ends of each overturning base are respectively provided with a second arc end cover, and the projection of each second arc end cover of each overturning base after overturning coincides with the projection of the first arc end cover.
2. 2. The mobile phone outward folding screen rotating shaft according to claim 1, wherein guide sliding blocks integrally formed with the plate bodies are arranged on two sides of each plate body, guide sliding grooves allowing the guide sliding blocks to slide are arranged on each connecting plate, the guide sliding grooves are arranged in a non-horizontal mode, extend to the outer sides of the connecting plates from the connecting plates, and the connecting plates are in sliding connection with the connecting plates through the matched sliding of the guide sliding blocks and the corresponding guide sliding grooves.
3. 3. The mobile phone outward folding screen rotating shaft according to claim 2, wherein two ends of each positioning shaft extend out of the limiting plates, connecting blocks are arranged between two adjacent rotating assemblies, two ends of each connecting block are pressed against the corresponding limiting plates, positioning grooves into which the positioning shafts extend are formed in two ends of each connecting block, cover plates are arranged on each connecting block, and each connecting block is fixed on the connecting base through the cooperation of each positioning shaft and the positioning grooves and the pressing of the cover plates on the positioning shafts.
4. 4. The mobile phone outward folding screen rotating shaft according to claim 3, wherein each connecting plate is provided with opposite side baffles, each side baffle extends from one end of the connecting plate to the other end of the connecting plate along the extending direction of the connecting plate, a gap with a constant width is formed between the two side baffles, an upper baffle capable of shielding each rotating assembly is fixedly arranged in the gap, the upper baffle is fixed on the connecting base, each connecting plate is provided with a plurality of mounting clamping strips integrally formed with the connecting plate, the extending direction of the mounting clamping strips is perpendicular to the extending direction of the connecting plate, each side baffle is provided with a mounting clamping groove for clamping the mounting clamping strips, and each side baffle is fixedly arranged on the corresponding connecting plate through the matching of each mounting clamping strip and the mounting clamping groove.
5. 5. The mobile phone outer folding screen rotating shaft according to claim 4, wherein a plurality of middle blocks are fixedly arranged at the bottom of each side baffle, limiting blocks are rotatably arranged on each middle block, pin shafts with the same extending directions as those of the connecting base are fixedly arranged on the limiting blocks, pin holes through which the pin shafts can pass are formed in the middle blocks, each limiting block is rotatably connected to the middle block through the matching of the pin shafts and the pin holes, one end, far away from the middle block, of each limiting block is rotatably connected to the connecting block, each limiting block is provided with a limiting shaft, the axis of each limiting shaft is parallel to the extending directions of the connecting base, each connecting plate is provided with a limiting through groove, each limiting through groove is horizontally arranged, the extending directions of the limiting through grooves are perpendicular to the extending directions of the connecting base, and each side baffle is rotatably connected with the connecting plate through the limiting blocks, and the sliding fit of the limiting shaft and the limiting through grooves is slidably connected with the connecting plate.

Description

Mobile phone external folding screen rotating shaft Technical Field The invention relates to the field of mobile phones with external folding screens, in particular to a mobile phone external folding screen rotating shaft. Background Along with the continuous progress and expansion of technology in the field of mobile terminals and the coming of the 5G network age, the dependence of people on the mobile terminals is increasing. Today, with the continuous update of various chat, video and other software, conventional touch screen mobile phones or tablet computers are perceived to be inadequate, mainly because the size of the screen is limited by the size of the mobile terminal. In order to solve the problem, people invented a flexible screen and apply the flexible screen to a mobile terminal, and through folding design, the mobile terminal can meet the requirements of people on carrying and expand the screen of the mobile terminal when the mobile terminal is required to be used. In order to achieve this, it is critical whether the design of the hinge mechanism is reasonable. At present, a hinge mechanism of a mobile terminal adopting a folding screen can be complex in mechanical structure, and different mechanical components are often required to be designed to meet requirements in order to realize synchronous overturning, damping handfeel and the like in a limited space. However, these components in the existing rotating shaft occupy a large amount of internal space, so that the thickness and quality of the whole rotating shaft are increased, and the whole rotating shaft is scrapped due to a little error between parts, which is quite unsafe. Disclosure of Invention The invention aims to provide the rotating shaft of the mobile phone outer folding screen, so that the inner space of the rotating shaft can be effectively optimized, and the rotating shaft is ingenious in structure, convenient and practical. The mobile phone connecting base is provided with a connecting base, connecting plates capable of being connected with a mobile phone screen are arranged on two sides of the connecting base, a plurality of rotating assemblies distributed on the connecting base along the extending direction of the connecting base are arranged on the connecting base, the connecting plates on two sides are connected on the connecting base in a rotating mode through the rotating assemblies, the rotating assemblies comprise two limiting plates which are oppositely arranged, positioning shafts which are fixed on the two limiting plates and are arranged in parallel, two rotating plates which are oppositely arranged, two sliding plates which are oppositely arranged and are connected on the two positioning shafts in a sliding mode, and reset springs which are sleeved on the positioning shafts are arranged in parallel, the rotating plates are connected on the corresponding positioning shafts in a rotating mode along the axes of the corresponding positioning shafts, one end of each rotating plate is pressed on the limiting plates, the sliding direction of each sliding plate is parallel to the axes of the positioning shafts, each reset spring is arranged between the two sliding plates, a first tooth is arranged on the sliding plate, and is matched with a second tooth on the corresponding protruding portion, which is matched with the protruding portion, on the protruding portion, which is correspondingly arranged on the protruding portion, and is matched with the protruding portion, and can be connected with the protruding portion through the corresponding protruding portion. Further, the rotating plate comprises two rotating sleeves which can be rotatably connected to the positioning shaft after penetrating through the same positioning shaft, and a plate body which can integrally connect the two rotating sleeves, one end of each rotating sleeve is pressed against the corresponding limiting plate, each second convex tooth part is arranged at one end of each rotating sleeve far away from the limiting plate, each second convex tooth part is coaxially arranged with the rotating sleeve, the sliding plate and the reset spring which are oppositely arranged are positioned between the two rotating sleeves, and the rotating plate presses the limiting plate through the rotating sleeve, the reset spring continuously applies force to each sliding plate and the cooperation of the first convex tooth part and the second convex tooth part rotates to perform self-locking. Further, a first transmission tooth part which is integrally formed with the rotary sleeve and coaxially arranged is arranged on the outer wall of any rotary sleeve on the same positioning shaft, a second transmission tooth part which is correspondingly matched with the first transmission tooth part is arranged on the outer wall of the opposite rotary sleeve on the other positioning shaft, and the oppositely arranged rotary plates are oppositely rotated through transmission matching of