TWM657124U - Hinge device for flexible screen - Google Patents

Abstract

The present application relates to the technical field of folding screens, and specifically discloses a flexible screen hinge device. In the flexible screen hinge device, a first middle plate, a first rotating shaft assembly, and a second rotating shaft assembly are used to form an upper and lower folding screen hinge, and the first rotating shaft assembly and the second rotating shaft assembly are arranged opposite to each other. The first middle plate, at least one second middle plate, a first rotating shaft assembly, and at least two second rotating shaft assemblies are used to form a left and right folding screen hinge. The first rotating shaft assembly is arranged opposite to each of the at least two second rotating shaft assemblies; the first middle plate is connected between the first rotating shaft assembly and the corresponding second rotating shaft assembly, and the second middle plate is connected to one of the two second rotating shaft assemblies that is farther from the first rotating shaft assembly. The door panel assembly is arranged between the first rotating shaft assembly and the second rotating shaft assembly. When producing different types of flexible screen hinge devices, the above arrangement can share the molds of the first rotating shaft assembly, the second rotating shaft assembly and the first middle plate, thereby reducing production costs.

Description

Flexible screen hinge device

This application relates to the field of folding screen technology, and in particular to a flexible screen hinge device.

Flexible screen refers to flexible OLED. Due to its low power consumption and bendable characteristics, it is used in the manufacture of personal smart terminals such as high-end smartphones.

Currently, the flexible screen devices on the market are mainly inward-folding flexible screens. Inward-folding flexible screen devices can be divided into larger left-right folding devices and smaller top-bottom folding devices. Many brands on the market have top-bottom folding devices and left-right folding devices. Due to the size problem, the parts of the top-bottom folding devices and left-right folding devices cannot be shared and need to be molded separately, resulting in high production costs.

The purpose of this application is to provide a flexible screen hinge device to solve the problem in the prior art that the parts of the upper and lower folding devices and the left and right folding devices cannot be shared and need to be molded separately, resulting in high production costs.

To achieve the above-mentioned purpose, the present application adopts the following technical solution: The present application provides a flexible screen hinge chain device, which includes: a first middle plate, at least one second middle plate, a first rotating shaft assembly, and at least two second rotating shaft assemblies. The first middle plate, the first rotating shaft assembly, and the second rotating shaft assembly are used to form an upper and lower folding screen hinge chain, and the first rotating shaft assembly and the second rotating shaft assembly are arranged opposite to each other. The first middle plate, at least one second middle plate, the first rotating shaft assembly, and at least two second rotating shaft assemblies are used to form a left and right folding screen hinge chain, and the first rotating shaft assembly is arranged opposite to each second rotating shaft assembly. The first middle plate is connected between the first shaft assembly and the corresponding second shaft assembly, and each second middle plate is connected to one of the two second shaft assemblies that is farther from the first shaft assembly.

In some embodiments, the first middle plate includes a middle plate body and a middle upper and lower connecting portion and a middle upper and lower connecting portion respectively disposed at two ends of the middle plate body. The middle upper and lower connecting portion and the middle upper and lower connecting portion are symmetrical about the center line L of the middle plate body, and the middle upper and lower connecting portion and the middle upper and lower connecting portion are respectively connected to the first shaft assembly and the corresponding second shaft assembly.

In some embodiments, the flexible screen hinge device further includes an upper and lower door panel assembly, and a first notch is formed on the side of the middle panel body. The upper and lower door panel assemblies form a first protrusion that matches the first notch, and the first protrusion is arranged in the first notch.

In some embodiments, the first shaft assembly and each second shaft assembly include a damping assembly. Second notches are formed on the sides of the first middle upper and lower connecting parts and the second middle upper and lower connecting parts, respectively, and the second notch is located on one side close to the end of the first middle plate body. A first clearance groove is formed on the upper and lower door panel assemblies at the position corresponding to the second notch, and the first clearance groove cooperates with the second notch to form a first clearance part for avoiding the damping assembly.

In some embodiments, the first shaft assembly and each second shaft assembly further include a rotating assembly. The side of the middle upper and lower connecting portion and the side of the middle second upper and lower connecting portion also form a third notch respectively, and the third notch is located on a side far from the end of the middle plate body. A second clearance groove is formed on the upper and lower door panel assemblies at the position corresponding to the third notch, and the second clearance groove cooperates with the third notch to form a second clearance portion for avoiding the rotating assembly.

In some embodiments, each second middle plate includes a middle plate body and left and right connecting parts provided at one end of the middle plate body, the middle plate body is configured to be connected to the base, and the left and right connecting parts are connected to the second shaft assembly.

In some embodiments, the flexible screen hinge device further includes left and right door panel assemblies. A fourth notch is formed on the side of the middle second plate body, and the left and right door panel assemblies form a second protrusion that matches the fourth notch, and the second protrusion is arranged in the fourth notch.

In some embodiments, each second shaft assembly includes a damping assembly. A fifth notch is formed on the side of the left and right connecting parts, and the fifth notch is located on one side close to the end of the middle second plate body. A third clearance groove is formed on the left and right door panel assemblies at the position corresponding to the fifth notch, and the third clearance groove cooperates with the fifth notch to form a third avoidance portion for avoiding the damping assembly.

In some embodiments, the second shaft assembly further includes a rotating assembly. A sixth notch is formed on the side of the left and right connecting parts, and the sixth notch is located on a side far from the end of the middle second plate body. A fourth clearance groove is formed on the left and right door panel assemblies at the position corresponding to the sixth notch, and the fourth clearance groove cooperates with the sixth notch to form a fourth clearance part for avoiding the rotating assembly.

In some embodiments, the first middle plate and each second middle plate respectively form a first recessed portion and a second recessed portion for accommodating the screen.

The beneficial effects of the present application are as follows: the present application provides a flexible screen hinge device, in which a first rotating shaft assembly, a second rotating shaft assembly, a first middle plate and a second middle plate are provided, wherein the first middle plate, the first rotating shaft assembly and the second rotating shaft assembly can form an upper and lower folding screen hinge, and a left and right folding screen hinge can be formed by providing a first middle plate, at least one second middle plate, the first rotating shaft assembly and at least two second rotating shaft assemblies, thereby realizing that the first rotating shaft assembly, the second rotating shaft assembly and the first middle plate can be applied to different types of flexible screen hinge devices, and when producing different types of flexible screen hinge devices, the molds of the first rotating shaft assembly, the second rotating shaft assembly and the first middle plate can be shared, thereby reducing production costs.

110: First shaft assembly

111: Rotating assembly

112: Damping assembly

113: Rotating shaft base

120: Second shaft assembly

210: First middle plate

211: The main body of the first plate

2111: Middle one mounting hole

2112: The first gap

212: Middle and lower connection parts

2121: Second gap

2122: The third gap

213: Middle two upper and lower connection parts

214: First recessed portion

220: Second middle plate

221: The second board body

2211: Middle two mounting holes

2212: The fourth gap

222: Left and right connection parts

2221: The fifth gap

2222: The Sixth Gap

223: Second recessed portion

310: Upward Incline

311: Upper plate body

3111: The first bulge

3112: First yielding slot

3113: Second yielding slot

320: Downward inclined board

321: Lower plate body

331: First guide rail

332: Second guide rail

410: Left inclined board

411: Left plate body

4111: Second bulge

4112: Third yielding slot

4113: The fourth give-way slot

420:Right inclined board

421: Right plate body

Figure 1 is a structural schematic diagram of the upper and lower folding screen hinge chain at the first viewing angle in the embodiment of this application; Figure 2 is a structural schematic diagram of the upper and lower folding screen hinge chain at the second viewing angle in the embodiment of this application; Figure 3 is a structural schematic diagram of the left and right folding screen hinge chain at the first viewing angle in the embodiment of this application; Figure 4 is a structural schematic diagram of the left and right folding screen hinge chain at the second viewing angle in the embodiment of this application; Figure 5 is a structural schematic diagram of the first middle plate in the embodiment of this application; Figure 6 is a structural schematic diagram of the second middle plate in the embodiment of this application; Figure 7 is a structural schematic diagram of the upper inclined plate and the lower inclined plate in the embodiment of this application; Figure 8 is a structural schematic diagram of the left inclined plate and the right inclined plate in the embodiment of this application; Figure 9 is a structural schematic diagram of the first rotating shaft assembly in the embodiment of this application.

The following will clearly and completely describe the technical solution of this application in conjunction with the attached figures. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by a person with ordinary knowledge in the relevant technical field without making progressive labor are within the scope of protection of this application.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the directions or positional relationships shown in the attached drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between two components. For those with ordinary knowledge in the relevant technical field, the specific meanings of the above terms in this application can be understood in specific circumstances.

The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the attached drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the attached drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

As shown in FIGS. 1 to 9 , the present embodiment provides a flexible screen hinge device, a first middle plate 210, a second middle plate 220 and a door panel assembly. The first middle plate 210, the first shaft assembly 110 and the second shaft assembly 120 are used to form an upper and lower folding screen hinge, and the first shaft assembly 110 and the second shaft assembly 120 are arranged opposite to each other. The first middle plate 210, at least one second middle plate 220, the first shaft assembly 110 and at least two second shaft assemblies 120 are used to form a left and right folding screen hinge, and the first shaft assembly 110 and at least two second shaft assemblies 120 are arranged opposite to each other. The first middle plate 210 is connected between the first shaft assembly 110 and the corresponding second shaft assembly 120, and the second middle plate 220 is connected to one of the two second shaft assemblies 120 that is farther from the first shaft assembly 110.

With the above-mentioned structure, the first middle plate 210, the first rotating shaft assembly 110 and the second rotating shaft assembly 120 can form an upper and lower folding screen hinge, wherein the first rotating shaft assembly 110 and the second rotating shaft assembly 120 are arranged opposite to each other. The first middle plate 210, at least one second middle plate 220, the first rotating shaft assembly 110 and at least two second rotating shaft assemblies 120 can form a left and right folding screen hinge, wherein the first rotating shaft assembly 110 is arranged opposite to each second rotating shaft assembly 120. Thus, the first rotating shaft assembly 110, the second rotating shaft assembly 120 and the first middle plate 210 can be applied to different types of flexible screen hinge devices. When producing different types of flexible screen hinge devices, the molds of the first rotating shaft assembly 110, the second rotating shaft assembly 120 and the first middle plate 210 can be shared, thereby reducing production costs.

That is to say, when the flexible screen hinge device may include, for example, a first rotating shaft assembly 110 and a second rotating shaft assembly 120, it may be called an upper and lower folding screen hinge, which may be used in an upper and lower folding screen device; the flexible screen hinge device may also include, for example, a first rotating shaft assembly 110 and at least two second rotating shaft assemblies 120, which may be called a left and right folding screen hinge, which may be used in an upper and lower folding screen device or a left and right folding screen device.

More specifically, the length of the upper and lower folding screen hinges is set to 64mm to 78.1mm, which is the width of the upper and lower folding phone; the length of the left and right folding screen hinges is 128mm to 156.2mm, which is the width of the left and right folding phone.

In the upper and lower folding screen hinges or the left and right folding screen hinges, regarding the structure of the first middle plate 210, in some embodiments, the first middle plate 210 includes a middle plate body 211 and a middle upper and lower connecting portion 212 and a middle upper and lower connecting portion 213 respectively disposed at both ends of the middle plate body 211. The middle upper and lower connecting portion 212 and the middle upper and lower connecting portion 213 are symmetrical about the center line L of the middle plate body 211, and the middle upper and lower connecting portion 212 and the middle upper and lower connecting portion 213 are respectively connected to the first shaft assembly 110 and the corresponding second shaft assembly 120. With the above-mentioned structure, the purpose of connecting the first middle plate 210 to the first shaft assembly 110 and the second shaft assembly 120 is achieved, and the symmetrical arrangement of the middle first upper and lower connecting parts 212 and the middle second upper and lower connecting parts 213 with respect to the center line L of the middle first plate body 211 makes the design and manufacture of the mold simpler, and the first middle plate 210 does not need to consider the positions of the two ends when connecting, which reduces the difficulty of assembly and improves the assembly efficiency.

For the stability of the connection, it is necessary to set a middle mounting hole 2111 at both ends of the middle plate body 211, and the middle screw passes through the middle mounting hole 2111 and is connected to the screw hole on the base. There are four middle mounting holes 2111, and two middle mounting holes 2111 are respectively set at both ends of the middle plate body 211. In some embodiments, the door panel assembly includes an upper and lower door panel assembly. A first notch 2112 is formed on the side of the middle plate body 211, and the upper and lower door panel assemblies form a first protrusion 3111 that matches the first notch 2112, and the first protrusion 3111 is set in the first notch 2112. The above arrangement facilitates the arrangement of the middle mounting hole 2111; since the thickness of the first middle plate 210 is relatively large and the thickness of the upper and lower door panel assemblies is relatively small, the size of the middle plate body 211 is minimized as much as possible, which is beneficial to reducing costs.

The first rotating shaft assembly 110 and each second rotating shaft assembly 120 include a damping assembly 112. Second notches 2121 are formed on the sides of the first middle upper and lower connecting portion 212 and the second middle upper and lower connecting portion 213, respectively. The second notch 2121 is located on one side close to the end of the first middle plate body 211. A first clearance groove 3112 is formed on the upper and lower door panel assemblies at the position corresponding to the second notch 2121. The first clearance groove 3112 cooperates with the second notch 2121 to form a first clearance portion for avoiding the damping assembly 112. With the arrangement of the above structure, the damping assembly 112 can be partially sandwiched between the first middle upper and lower connecting portion 212 and the upper and lower door panel assemblies. In the thickness direction of the flexible screen hinge device, that is, in the direction perpendicular to the axis of the damping component 112, the thickness of the damping component 112 and the thickness of the middle upper and lower connecting portion 212 can partially overlap, thereby reducing the thickness dimension of the flexible screen hinge device at the damping component 112. Among them, the thickness of the middle upper and lower connecting portion 212 and the thickness of the middle upper and lower connecting portion 213 are the same.

The first shaft assembly 110 and each second shaft assembly 120 also include a rotating assembly 111. The sides of the middle upper and lower connecting parts 212 and the sides of the middle upper and lower connecting parts 213 also form third notches 2122 respectively, and the third notches 2122 are located on the side far from the end of the middle plate body 211. A second clearance groove 3113 is formed on the upper and lower door panel assemblies at the corresponding position of the third notch 2122, and the second clearance groove 3113 cooperates with the third notch 2122 to form a second clearance part for avoiding the rotating assembly 111. Similarly, the above arrangement allows the thickness of the rotating assembly 111 and the thickness of the middle upper and lower connecting parts 212 to partially overlap, thereby reducing the thickness dimension of the flexible screen hinge device at the rotating assembly 111.

The first shaft assembly 110 and each second shaft assembly 120 include a shaft base 113, and the rotating assembly 111 is arranged between the shaft base 113 and the damping assembly 112. The damping assembly 112 of the first shaft assembly 110 and the damping assembly 112 of the second shaft assembly 120 are arranged opposite to each other, and the damping assembly 112 in the first shaft assembly 110 and the damping assembly 112 in the second shaft assembly 120 are located between the shaft base 113 in the first shaft assembly 110 and the shaft base 113 in the second shaft assembly 120. It is worth noting that the first shaft assembly 110 and the second shaft assembly 120 can be regarded as the same structure, but the positions and angles of placement when in use are different.

In the upper and lower folding screen hinges, the upper and lower door panel assemblies include an upper inclined plate 310 and a lower inclined plate 320. The upper inclined plate 310 and the lower inclined plate 320 are respectively arranged between the first rotating shaft assembly 110 and the second rotating shaft assembly 120 of the upper and lower folding screen hinges, and the upper inclined plate 310 and the lower inclined plate 320 are located on both sides of the first middle plate 210. The above arrangement enables the upper inclined plate 310 and the lower inclined plate 320 to work together with the first middle plate 210 to support the screen, and the supported area of the screen is larger.

The upper and lower door panel assemblies include a first guide rail 331, a second guide rail 332, an upper plate body 311 and a lower plate body 321. The first guide rail 331 and the second guide rail 332 are arranged at intervals on the upper plate body 311 to form an upper inclined plate 310; the first guide rail 331 and the second guide rail 332 are arranged at intervals on the lower plate body 321 to form a lower inclined plate 320. With the above arrangement, the first guide rail 331 and the second guide rail 332 can be shared when producing the upper inclined plate 310 and the lower inclined plate 320, thereby reducing the number of molds and reducing costs.

The first guide rail 331 and the second guide rail 332 are made of metal or carbon fiber, and the upper plate body 311 and the lower plate body 321 are made of plastic.

The rotating assembly 111 includes a first swing arm and a second swing arm; the first swing arm and the second swing arm are synchronously rotated on the rotating shaft base 113, a first pin is provided at the end of the first swing arm, and a second pin is provided at the end of the second swing arm. The rotating assembly 111 also includes a first housing connecting rod and a second housing connecting rod, both of which are rotatably disposed on the rotating shaft base 113 and slideably cooperate with the first swing arm and the second swing arm respectively. The first guide rail 331 and the second guide rail 332 are respectively used for sliding cooperation with the first pin and the second pin. The upper inclined plate 310 and the lower inclined plate 320 are also respectively connected to the first housing connecting rod and the second housing connecting rod for rotation, so that the upper inclined plate 310 and the lower inclined plate 320 follow the rotation of the first housing connecting rod and the second housing connecting rod. In the process, the first swing arm and the second swing arm swing relative to each other, so that the screen forms a water drop shape when folded.

The specific usage of the first guide rail 331 and the second guide rail 332, as well as the technical means of forming a water drop-shaped screen after folding, are well known to those with ordinary knowledge in the relevant technical field and are not the content to be protected by this application, so they will not be elaborated here.

The upper plate body 311 and the lower plate body 321 are both provided with a first protrusion 3111. The upper plate body 311 and the lower plate body 321 are both provided with a first clearance groove 3112. The upper plate body 311 and the lower plate body 321 are both provided with a second clearance groove 3113.

In the left-right folding screen hinge, regarding the structure of the second middle plate 220, in some embodiments, the second middle plate 220 includes a middle plate body 221 and left-right connecting parts 222 provided at one end of the middle plate body 221; the middle plate body 221 is configured to be connected to the base, and the left-right connecting parts 222 are connected to the second shaft assembly 120. With the arrangement of the above structure, the effect of connecting the second middle plate 220 to the base and the second shaft assembly 120 is achieved. The above arrangement enables multiple second middle plates 220 to be used in parallel to increase the length of the entire flexible screen hinge device, thereby reducing the difficulty of assembly and improving the assembly efficiency.

For the stability of the connection, it is necessary to set the middle second mounting holes 2211 at both ends of the middle second plate body 221, and the middle second screws pass through the middle second mounting holes 2211 and connect with the screw holes on the base. There are four middle second mounting holes 2211, and two middle second mounting holes 2211 are set at each end of the middle second plate body 221. In some embodiments, the left and right folding screen hinges also include left and right door panel assemblies. A fourth notch 2212 is formed on the side of the middle second plate body 221, and the left and right door panel assemblies form a second protrusion 4111 that matches the fourth notch 2212, and the second protrusion 4111 is set in the fourth notch 2212. The above arrangement facilitates the arrangement of the second middle mounting hole 2211; since the thickness of the second middle plate 220 is relatively large and the thickness of the left and right door panel assemblies is relatively small, the size of the second middle plate body 221 is minimized as much as possible, which is conducive to reducing costs.

The second shaft assembly 120 includes a damping assembly 112. A fifth notch 2221 is formed on the side of the left and right connecting parts 222. The fifth notch 2221 is located on one side close to the end of the middle second plate body 221. A third evasion groove 4112 is formed on the left and right door panel assemblies at the position corresponding to the fifth notch 2221. The third evasion groove 4112 cooperates with the fifth notch 2221 to form a third evasion portion for evading the damping assembly 112. With the above-mentioned structure, the damping assembly 112 can be partially sandwiched between the left and right connecting parts 222 and the left and right door panel assemblies. In the thickness direction of the flexible screen hinge device, that is, in the direction perpendicular to the axis of the damping assembly 112, the thickness of the damping assembly 112 and the thickness of the left and right connecting parts 222 can partially overlap, thereby reducing the thickness dimension of the flexible screen hinge device at the damping assembly 112.

The second shaft assembly 120 also includes a rotating assembly 111. A sixth notch 2222 is formed on the side of the left and right connecting parts 222, and the sixth notch 2222 is located on a side far from the end of the middle second plate body 221. A fourth clearance groove 4113 is formed on the left and right door panel assemblies at the position corresponding to the sixth notch 2222, and the fourth clearance groove 4113 cooperates with the sixth notch 2222 to form a fourth avoidance part for avoiding the rotating assembly 111. Similarly, the above arrangement allows the thickness of the rotating assembly 111 and the thickness of the left and right connecting parts 222 to partially overlap, thereby reducing the thickness dimension of the flexible screen hinge device at the rotating assembly 111.

The left and right door panel assemblies include a left oblique panel 410 and a right oblique panel 420. The left oblique panel 410 is arranged on the left side of the first middle panel 210 and the second middle panel 220, and the right oblique panel 420 is arranged on the right side of the first middle panel 210 and the second middle panel 220, that is, the left oblique panel 410 and the right oblique panel 420 are located on both sides of the first middle panel 210 and also on both sides of the second middle panel 220. With the arrangement of the left oblique panel 410 and the right oblique panel 420, the screen can be supported together with the first middle panel 210 and the second middle panel 220, so that the supported area of the screen is larger.

The left and right door panel assemblies include a first guide member 331, a second guide member 332, a left panel body 411, and a right panel body 421. Two first guide members 331 and one second guide member 332 are spaced apart on the left panel body 411 to form a left inclined panel 410; one first guide member 331 and two second guide members 332 are spaced apart on the right panel body 421 to form a right inclined panel 420. With the above arrangement, the first guide member 331 and the second guide member 332 can be shared when producing the left inclined panel 410 and the right inclined panel 420, thereby reducing the number of molds and reducing costs. In other embodiments, the first guide rail 331 and the second guide rail 332 can be shared when producing the left inclined plate 410, the right inclined plate 420, the upper inclined plate 310 and the lower inclined plate 320, thereby reducing the number of molds and reducing costs.

The first guide rail 331 and the second guide rail 332 are made of metal or carbon fiber. The left plate body 411 and the right plate body 421 are made of plastic.

The left plate body 411 and the right plate body 421 are both provided with a second protrusion 4111. The left plate body 411 and the right plate body 421 are both provided with a third clearance groove 4112. The left plate body 411 and the right plate body 421 are both provided with a fourth clearance groove 4113.

It is worth noting that the left plate body 411 and the right plate body 421 are both provided with a first protrusion 3111. The left plate body 411 and the right plate body 421 are both provided with a first clearance groove 3112. The left plate body 411 and the right plate body 421 are both provided with a second clearance groove 3113. The matching relationship of the above structures can refer to the description of the upper and lower folding screen hinges.

In some embodiments, the first middle plate 210 and the second middle plate 220 respectively form a first recessed portion 214 and a second recessed portion 223 for accommodating the screen. The first recessed portion 214 and the second recessed portion 223 can provide a larger accommodating space for the screen after being shielded, avoiding contact with the screen, thereby avoiding creases on the screen.

In some embodiments, a first middle plate 210, two second middle plates 220, a first shaft assembly 110 and two second shaft assemblies 120 form a left and right folding screen hinge; wherein, a first shaft assembly 110 and two second shaft assemblies 120 are arranged at intervals to form three gaps, the first middle plate 210 is arranged at the first gap, and the two second middle plates 220 are arranged at the second gap and the third gap.

Obviously, the above embodiments of this application are only examples for the purpose of clearly explaining this application, and are not intended to limit the implementation of this application. For those with ordinary knowledge in the relevant technical field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. Any modification, equivalent replacement and improvement made within the spirit and principles of this application shall be included in the scope of protection of the patent scope of this application.

110: First shaft assembly

120: Second shaft assembly

210: First middle plate

310: Upward Incline

320: Downward inclined board

Claims (10)

A flexible screen hinge device comprises: a first middle plate (210), a first rotating shaft assembly (110) and a second rotating shaft assembly (120) for forming a vertical folding screen hinge, wherein the first rotating shaft assembly (110) and the second rotating shaft assembly (120) are arranged opposite to each other; the first middle plate (210), at least one second middle plate (220), the first rotating shaft assembly (110) and at least two second rotating shaft assemblies (120) are used to form a Left and right folding screen hinges, the first rotating shaft assembly (110) is respectively arranged opposite to each of the at least two second rotating shaft assemblies (120); the first middle plate (210) is connected between the first rotating shaft assembly (110) and the corresponding second rotating shaft assembly (120), and each of the at least one second middle plate (220) is connected to one of the two second rotating shaft assemblies (120) that is farther from the first rotating shaft assembly (110). According to the flexible screen hinge device described in claim 1, the first middle plate (210) includes a middle plate body (211) and a middle-first upper and lower connecting portion (212) and a middle-second upper and lower connecting portion (213) respectively arranged at two ends of the middle plate body (211), the middle-first upper and lower connecting portion (212) and the middle-second upper and lower connecting portion (213) are symmetrical about a center line L of the middle plate body (211), and the middle-first upper and lower connecting portion (212) and the middle-second upper and lower connecting portion (213) are respectively connected to the first rotating shaft assembly (110) and the corresponding second rotating shaft assembly (120). According to the flexible screen hinge device described in claim 2, it also includes an upper and lower door panel assembly, wherein a first notch (2112) is formed on the side of the middle panel body (211), and the upper and lower door panel assembly forms a first protrusion (3111) that matches the first notch (2112), and the first protrusion (3111) is arranged in the first notch (2112). According to the flexible screen hinge device described in claim 3, each of the first rotating shaft assembly (110) and at least two of the second rotating shaft assemblies (120) includes a damping assembly (112); a second notch (2121) is formed on the side of the middle upper and lower connecting portion (212) and the side of the middle second upper and lower connecting portion (213), and the second notch (2121) is located on a side close to the end of the middle plate body (211); a first clearance groove (3112) is formed on the upper and lower door panel assemblies at the position corresponding to the second notch (2121), and the first clearance groove (3112) cooperates with the second notch (2121) to form a first avoidance portion for avoiding the damping assembly (112). According to the flexible screen hinge device described in claim 4, each of the first rotating shaft assembly (110) and at least two of the second rotating shaft assemblies (120) further comprises a rotating assembly (111); a third notch (2122) is formed on the side of the middle upper and lower connecting portion (212) and the side of the middle second upper and lower connecting portion (213), and the third notch (2122) is located on a side far from the end of the middle plate body (211); a second clearance groove (3113) is formed on the upper and lower door panel assemblies at the position corresponding to the third notch (2122), and the second clearance groove (3113) cooperates with the third notch (2122) to form a second avoidance portion for avoiding the rotating assembly (111). According to the flexible screen hinge device described in claim 1, each of the at least one second middle plate (220) includes a middle plate body (221) and a left and right connecting portion (222) provided at one end of the middle plate body (221), the middle plate body (221) is configured to be connected to a base, and the left and right connecting portion (222) is connected to the corresponding second shaft assembly (120). According to the flexible screen hinge device described in claim 6, it also includes a left and right door panel assembly; The side of the middle second plate body (221) forms a fourth notch (2212), and the left and right door panel assembly forms a second protrusion (4111) that matches the fourth notch (2212), and the second protrusion (4111) is arranged in the fourth notch (2212). According to the flexible screen hinge device described in claim 7, each of at least two of the second rotating shaft components (120) includes a damping component (112); a fifth notch (2221) is formed on the side of the left and right connecting parts (222), and the fifth notch (2221) is located on one side close to the end of the middle second plate body (221); a third clearance groove (4112) is formed on the left and right door panel components at the position corresponding to the fifth notch (2221), and the third clearance groove (4112) cooperates with the fifth notch (2221) to form a third avoidance portion for avoiding the damping component (112). According to the flexible screen hinge device described in claim 8, the second shaft assembly (120) further includes a rotating assembly (111); a sixth notch (2222) is formed on the side of the left and right connecting parts (222), and the sixth notch (2222) is located on a side far from the end of the middle second plate body (221); a fourth clearance groove (4113) is formed on the left and right door panel assemblies at the position corresponding to the sixth notch (2222), and the fourth clearance groove (4113) cooperates with the sixth notch (2222) to form a fourth avoidance portion for avoiding the rotating assembly (111). According to the flexible screen hinge device described in claim 1, a first recessed portion (214) and a second recessed portion (223) for accommodating a screen are respectively formed on each of the first middle plate (210) and the at least one second middle plate (220).