Inward folding flexible screen terminal

Abstract

The present invention discloses an inward folding flexible screen terminal, comprising a left shell body and a right shell body, wherein a hinge mechanism for providing torque, unfolding and locking, and driving the two to rotate synchronously is installed between the left shell body and the right shell body, wherein the hinge mechanism comprises a first shrimp shell member, a second shrimp shell member, and a third shrimp shell member, which are arranged in parallel, and a torque mechanism, a locking mechanism, and a synchronization mechanism for realizing synchronous linkage between the three shrimp shell members and the shell body are installed on the inner sides of the first shrimp shell member, the second shrimp shell member, and the third shrimp shell member; the present invention uses a locking mechanism to lock the hinge mechanism when the left shell body and the right shell body are fully unfolded, thereby avoiding accidental rotation of the left shell body and the right shell body, and the locking mechanism is simple and has good mechanical reliability, while increasing the user experience of the flexible screen terminal, and when the hinge mechanism is locked by using the locking mechanism, the left shell body and the right shell body are fully unfolded to 180 degrees, thereby avoiding stress on the flexible screen and further improving the service life of the flexible screen.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic equipment, and in particular to an inward-folding flexible screen terminal. Background Art

[0002] The screen is a device used to display images and colors in electronic devices. With the continuous development of science and technology, flexible screens are gradually used in current electronic devices. In order to meet people's growing demand for small size and large screens of electronic devices, using flexible screens for foldable displays has become a research and development hotspot for current researchers.

[0003] Flexible screens usually refer to OLED displays. Because of their thinner, lighter and more flexible characteristics, they are currently widely used in new-generation electronic devices to form foldable terminals. However, existing inward-folding flexible screen terminals have the following defects:

[0004] 1) When the shell of the inward-folding flexible screen terminal is unfolded, the hinge cannot provide torque and the synchronization is poor, so the terminal cannot stop as it folds, and the mechanical feedback is poor, which not only causes a poor user experience of the terminal, but also easily damages the flexible screen during the opening and closing process of the terminal, reducing the service life of the product;

[0005] 2) When the shell of the inward-folding flexible screen terminal is fully unfolded, the hinge lacks the necessary locking mechanism, which makes the terminal prone to accidental rotation during use, easily causing damage to the terminal device, further reducing the product's service life and user experience. Summary of the invention

[0006] The purpose of the present invention is to provide an inward-folding flexible screen terminal to solve the problems raised in the above-mentioned background technology that the hinges used in the existing flexible screen mobile phones cannot provide torque and have poor synchronization, so that the terminal cannot be folded and stopped, and the flexible screen is easily damaged during the opening and closing process of the terminal, and the hinge lacks the necessary locking mechanism, which causes the terminal to rotate accidentally during use.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an inward-folding flexible screen terminal, comprising a left shell body and a right shell body, a hinge mechanism for providing torque, unfolding and locking, and driving the two to rotate synchronously is installed between the left shell body and the right shell body, the hinge mechanism comprises three parallelly arranged first shrimp shell members, a second shrimp shell member and a third shrimp shell member, and a torque mechanism, a locking mechanism and a synchronization mechanism for realizing synchronous linkage between the three shrimp shell members and the shell are installed on the inner side of the first shrimp shell member, the second shrimp shell member and the third shrimp shell member.

[0008] As a preferred technical solution of the present invention, the torsion mechanism includes a first toothed sliding member and a second toothed sliding member fixedly installed with the left shell and the right shell respectively by screws, a first crescent member and a first arc-shaped vertical plate with grooves are arranged on both sides of the first toothed sliding member, and the inner sides of the first crescent member and the first arc-shaped vertical plate with grooves are both provided with an arc-shaped guide groove for guiding the sliding end of the first toothed sliding member, a second crescent member and an arc-shaped vertical plate with holes are arranged on both sides of the second toothed sliding member, and an arc-shaped vertical plate with holes are also arranged on the inner sides of the arc-shaped vertical plate with holes and the second crescent member, and a first double-toothed rotating shaft is inserted and connected between the opening at one end of the top of the first crescent member and the opening at one end of the top of the arc-shaped vertical plate with holes, and the ... first double-toothed rotating shaft is inserted and connected A second double-toothed shaft is inserted and connected between the opening at the other end of the top of the arc-shaped vertical plate with holes and the opening at one end of the top of the second crescent member, one of the ring teeth of the first double-toothed shaft is meshed and connected with the top rack of the sliding end of the first toothed sliding member, one of the ring teeth of the second double-toothed shaft is meshed and connected with the top rack of the sliding end of the second toothed sliding member, the other ring tooth of the first double-toothed shaft and the other ring tooth of the second double-toothed shaft are both placed between the first arc-shaped vertical plate with grooves and the arc-shaped vertical plate with holes, and four transmission gears that provide torque and can realize synchronous rotation of the first toothed sliding member and the second toothed sliding member are meshed and connected between the two ring teeth placed between the first arc-shaped vertical plate with grooves and the arc-shaped vertical plate with holes, and the four transmission gears are meshed and connected with each other and are respectively inserted and connected with the pin holes opened in the first arc-shaped vertical plate with grooves and the arc-shaped vertical plate with holes through pin shafts.

[0009] As a preferred technical solution of the present invention, the locking mechanism includes a U-shaped lock seat fixedly installed on the inner side of the first shrimp shell member by screws, two lock seat partitions located opposite to each other are fixedly installed in the middle of the U-shaped lock seat, a dumbbell-shaped lock tongue is provided on one side of the two lock seat partitions, and two spherical heads provided on one side of the two dumbbell-shaped lock tongues pass through the openings opened in the corresponding lock seat partitions and are placed between the two lock seat partitions, two convex columns provided on the other side of the two dumbbell-shaped lock tongues are sleeved with a spring 1 for resetting the dumbbell-shaped lock tongues, one end of the spring 1 is sleeved with a convex column corresponding to the end head of the U-shaped lock seat, the spherical heads of the two dumbbell-shaped lock tongues on the same side are interlaced and connected with the lock holes of the first T-shaped lock head, the spherical heads of the two dumbbell-shaped lock tongues on the other side are interlaced and connected with the lock holes of the second T-shaped lock head, and the first T-shaped lock head and the second T-shaped lock head are respectively installed and fixed to the left shell body and the right shell body by screws.

[0010] As a preferred technical solution of the present invention, the locking mechanism includes a straight lock head and a straight lock seat which are respectively fixed to the left shell body and the right shell body by screws, one end of the straight lock seat is provided with a U-shaped lock groove matching the end of the straight lock head, and the slot wall openings on both sides of the U-shaped lock groove are both inserted and connected with straight lock tongues which are positioned opposite to each other, the spherical head at one end of the straight lock tongue is inserted and connected with the lock hole provided at the end of the straight lock head, and the other end of the straight lock tongue is connected with a spring which is placed inside the straight lock seat and can reset it.

[0011] As a preferred technical solution of the present invention, the synchronization mechanism includes a first sliding member and a second sliding member which are respectively fixed to the inner sides of the left shell body and the right shell body by screws, a second arc-shaped vertical plate with a groove is provided between the first sliding member and the second sliding member, a third crescent member and a fourth crescent member which are respectively fixed to the inner sides of the first shrimp shell body by screws are provided on one side of the first sliding member and one side of the second sliding member, and an arc-shaped guide groove for guiding the sliding end of the first sliding member is provided on the inner side of the third crescent member and one side of the second arc-shaped vertical plate with a groove, and an arc-shaped guide groove for guiding the sliding end of the second sliding member is provided on the inner side of the fourth crescent member and the other side of the second arc-shaped vertical plate with a groove.

[0012] As a preferred technical solution of the present invention, a cover plate for smoothly supporting the flexible screen is installed on the inner top of the first shrimp shell by screws, and mounting plates flush with the cover plate and used to install the flexible screen are installed on the inner sides of the left shell and the right shell.

[0013] As a preferred technical solution of the present invention, arc-shaped limiting grooves are provided on the inner sides of the first shrimp shell member, the second shrimp shell member and the third shrimp shell member, which are directly opposite to the first arc-shaped vertical plate with grooves, the arc-shaped vertical plate with holes and the second arc-shaped vertical plate with grooves.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: an inward folding flexible screen terminal of the present invention has the following beneficial effects:

[0015] 1) The torque mechanism and synchronization mechanism are provided to simplify the structure of the hinge, thereby reducing the production cost of the hinge. At the same time, the ring gear in the torque mechanism cooperates with the rack and the transmission gear, so that the hinge mechanism has good synchronous rotation and linkage. The torque mechanism can provide good mechanical feedback when the shell is opened and closed, thereby avoiding damage to the flexible screen of the terminal due to excessive force and improving the service life of the flexible screen.

[0016] 2) The locking mechanism is provided to lock the hinge mechanism when the left shell and the right shell are fully unfolded, thereby preventing the left shell and the right shell from accidentally rotating. The locking mechanism is simple and has good mechanical reliability, while increasing the user experience of the flexible screen terminal. When the hinge mechanism is locked by the locking mechanism, the left shell and the right shell are fully unfolded to 180 degrees, thereby avoiding stress on the flexible screen and further improving the service life of the flexible screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of implementation 1 of the present invention;

[0018] Figure 2 This is a schematic diagram of the main structure of implementation 2 of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the torque mechanism of the present invention;

[0020] Figure 4 It is a schematic diagram of the split structure of the torque mechanism of the present invention;

[0021] Figure 5 This is a schematic diagram of the locking mechanism structure of Example 1 of the present invention;

[0022] Figure 6 This is a schematic diagram of the disassembled structure of the locking mechanism of Example 1 of the present invention;

[0023] Figure 7 This is a schematic diagram of the locking mechanism structure of Example 2 of the present invention;

[0024] Figure 8 This is a schematic diagram of the disassembled structure of the locking mechanism of Example 2 of the present invention.

[0025] In the figure: 1, left shell; 2, right shell; 3, hinge mechanism; 31, first shrimp shell member; 32, second shrimp shell member; 33, third shrimp shell member; 3a, torque mechanism; 3a1, first crescent member; 3a2, first toothed sliding member; 3a3, first arc-shaped vertical plate with groove; 3a4, first double-toothed rotating shaft; 3a5, second double-toothed rotating shaft; 3a6, transmission gear; 3a7, arc-shaped vertical plate with holes; 3a8, second toothed sliding member; 3a9, second crescent member; 3b, locking mechanism; 3b 1. First T-type lock head; 3b2. U-type lock seat; 3b21. Lock seat partition; 3b3. Second T-type lock head; 3b4. Spring 1; 3b5. Dumbbell-shaped lock tongue; 3b6. I-shaped lock head; 3b7. I-shaped lock seat; 3b71. U-shaped lock groove; 3b8. Spring 2; 3b9. I-shaped lock tongue; 3c. Synchronous mechanism; 3c1. First sliding member; 3c2. Third crescent member; 3c3. Second arc-shaped vertical plate with groove; 3c4. Second sliding member; 3c5. Fourth crescent member. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example 1

[0028] See also Figure 1-5 The present invention provides an inward folding flexible screen terminal, including a left shell body 1 and a right shell body 2, a hinge mechanism 3 for providing torque, unfolding and locking, and driving the two to rotate synchronously is installed between the left shell body 1 and the right shell body 2, the hinge mechanism 3 includes three parallel first shrimp shell members 31, second shrimp shell members 32 and third shrimp shell members 33, and the inner sides of the first shrimp shell members 31, the second shrimp shell members 32 and the third shrimp shell members 33 are installed with a torque mechanism 3a, a locking mechanism 3b and a synchronization mechanism 3c for realizing synchronous linkage between the three shrimp shell members and the shell, the torque mechanism 3a, the locking mechanism 3b and the synchronization mechanism 3c are provided, the hinge provides torque for the rotation of the shell, the shell can be self-locked when unfolded, and the shell can be synchronized when rotating.

[0029] Furthermore, the torque mechanism 3a includes a first toothed sliding member 3a2 and a second toothed sliding member 3a8 fixedly installed with the left shell 1 and the right shell 2 respectively by screws, and the first toothed sliding member 3a2 is provided with a first crescent member 3a1 and a first grooved arc-shaped vertical plate 3a3 fixedly installed with the inner side of the first shrimp shell member 31 by screws on both sides, and the inner sides of the first crescent member 3a1 and the first grooved arc-shaped vertical plate 3a3 are provided with an arc-shaped guide groove for guiding the sliding end of the first toothed sliding member 3a2, and the second toothed sliding member 3a8 is provided with a first crescent member 3a1 and a first grooved arc-shaped vertical plate 3a3 fixedly installed with the inner side of the first shrimp shell member 31 by screws. The second crescent member 3a9 and the arc-shaped vertical plate 3a7 with holes are fixedly installed on the inner side of the first shrimp shell member 31 by screws, and the inner sides of the arc-shaped vertical plate 3a7 with holes and the second crescent member 3a9 are also provided with an arc-shaped guide groove for guiding the sliding end of the second toothed sliding member 3a8, and the first double-toothed rotating shaft 3a4 is inserted and connected between the opening at one end of the top of the first crescent member 3a1 and the opening at one end of the top of the arc-shaped vertical plate 3a7 with holes, and the second double-toothed rotating shaft 3a4 is inserted and connected between the opening at the other end of the top of the arc-shaped vertical plate 3a7 with holes and the opening at one end of the top of the second crescent member 3a9. The gear shaft 3a5, one of the ring teeth of the first double-tooth shaft 3a4 is meshed with the top rack of the sliding end of the first toothed sliding member 3a2, one of the ring teeth of the second double-tooth shaft 3a5 is meshed with the top rack of the sliding end of the second toothed sliding member 3a8, the other ring tooth of the first double-tooth shaft 3a4 and the other ring tooth of the second double-tooth shaft 3a5 are both placed between the first grooved arc-shaped vertical plate 3a3 and the perforated arc-shaped vertical plate 3a7, and are placed between the two ring teeth between the first grooved arc-shaped vertical plate 3a3 and the perforated arc-shaped vertical plate 3a7. There are four transmission gears 3a6 meshingly connected to provide torque and realize synchronous rotation of the first toothed sliding member 3a2 and the second toothed sliding member 3a8, and the four transmission gears 3a6 are meshingly connected to each other and are respectively inserted and connected with the pin holes opened in the first grooved arc-shaped vertical plate 3a3 and the perforated arc-shaped vertical plate 3a7 through pins. During the rotation of the torque mechanism 3a, the ring teeth mesh with the corresponding racks and transmission gears 3a6, providing a certain torque and better mechanical feedback, and allowing the shell to be opened and closed at will, thereby facilitating the use of the terminal.

[0030] Further, the locking mechanism 3b includes a U-shaped lock seat 3b2 fixedly installed with the inner side of the first shrimp shell member 31 by screws, and two lock seat partitions 3b21 located opposite to each other are fixedly installed in the middle of the U-shaped lock seat 3b2, and dumbbell-shaped lock tongues 3b5 are provided on one side of the two lock seat partitions 3b21, and two spherical heads provided on one side of the two dumbbell-shaped lock tongues 3b5 pass through the openings of the corresponding lock seat partitions 3b21 and are placed between the two lock seat partitions 3b21, and two convex columns provided on the other side of the two dumbbell-shaped lock tongues 3b5 are sleeved with springs 3b4 for resetting the dumbbell-shaped lock tongues 3b5. One end of the spring 1 3b4 is sleeved with a convex column corresponding to the end of the U-shaped lock seat 3b2, and the spherical heads of the two dumbbell-shaped lock tongues 3b5 on the same side are inserted and connected with the lock hole of the first T-shaped lock head 3b1, and the spherical heads of the two dumbbell-shaped lock tongues 3b5 on the other side are inserted and connected with the lock hole of the second T-shaped lock head 3b3, and the first T-shaped lock head 3b1 and the second T-shaped lock head 3b3 are respectively installed and fixed to the left shell 1 and the right shell 2 by screws, and the self-locking of the hinge mechanism 3 is realized by the provided locking mechanism 3b to prevent the left shell 1 and the right shell 2 from rotating accidentally after being fully unfolded.

[0031] Furthermore, the synchronization mechanism 3c includes a first sliding member 3c1 and a second sliding member 3c4 which are respectively fixed to the inner sides of the left shell 1 and the right shell 2 by screws, a second grooved arc-shaped vertical plate 3c3 is provided between the first sliding member 3c1 and the second sliding member 3c4, a third crescent member 3c2 and a fourth crescent member 3c5 which are respectively fixed to the inner sides of the first shrimp shell 31 by screws are provided on one side of the first sliding member 3c1 and one side of the second sliding member 3c4, and an arc-shaped guide groove for guiding the sliding end of the first sliding member 3c1 is provided on the inner side of the third crescent member 3c2 and one side of the second grooved arc-shaped vertical plate 3c3, and an arc-shaped guide groove for guiding the sliding end of the second sliding member 3c4 is provided on the inner side of the fourth crescent member 3c5 and the other side of the second grooved arc-shaped vertical plate 3c3, and the synchronization mechanism 3c realizes synchronous rotation between the left shell 1 and the right shell 2 and the shrimp shell.

[0032] Furthermore, a cover plate for smoothly supporting the flexible screen is installed on the inner top of the first shrimp shell member 31 by screws, and mounting plates flush with the cover plate and used to install the flexible screen are installed on the inner sides of the left shell 1 and the right shell 2. The cover plate and the mounting plate can be used to smoothly support the flexible screen, thereby reducing the stress generated during the rotation of the hinge mechanism 3.

[0033] Specifically, when the inward folding flexible screen terminal is needed, the left housing 1 and the right housing 2 are first pulled, the torque mechanism 3a of the hinge mechanism 3 provides torque, and the synchronization mechanism 3c realizes the synchronous rotation of the left housing 1 and the right housing 2. The specific process is as follows:

[0034] When the left shell 1 and the right shell 2 are relatively unfolded, the forces act on the first toothed sliding member 3a2 and the second toothed sliding member 3a8 respectively, and the sliding end of the first toothed sliding member 3a2 slides within the arc-shaped guide grooves provided on the inner sides of the first crescent member 3a1 and the first grooved arc-shaped vertical plate 3a3, and because the rack of the first toothed sliding member 3a2 is meshed with one of the ring teeth of the first double-toothed rotating shaft 3a4, the sliding first toothed sliding member 3a2 drives the first double-toothed rotating shaft 3a4 to rotate; the second toothed sliding member 3a8 slides within the arc-shaped guide grooves provided on the inner sides of the first crescent member 3a1 and the first grooved arc-shaped vertical plate 3a3, and because the rack of the first toothed sliding member 3a2 is meshed with one of the ring teeth of the first double-toothed rotating shaft 3a4, the sliding first toothed sliding member 3a2 drives the first double-toothed rotating shaft 3a4 to rotate; The sliding end of the moving member 3a8 also performs limited sliding in the arc-shaped guide grooves provided on the inner sides of the second crescent member 3a9 and the arc-shaped vertical plate 3a7 with holes, and because the rack of the second toothed sliding member 3a8 is meshed with one of the ring teeth of the second double-toothed rotating shaft 3a5, the sliding second toothed sliding member 3a8 drives the second double-toothed rotating shaft 3a5 to rotate. During the rotation process, the other ring teeth of the first double-toothed rotating shaft 3a4 and the other ring teeth of the second double-toothed rotating shaft 3a5 are meshed with two of the transmission gears 3a6, and the first double-toothed rotating shaft 3a6 rotates. 3a4 and the second double-toothed shaft 3a5 are acted upon by four mutually meshing transmission gears 3a6, so that the first toothed sliding member 3a2 drives the left housing 1 and the second toothed sliding member 3a8 drives the right housing 2 to rotate synchronously, and in the process of rotation, the ring teeth mesh with the corresponding racks and transmission gears 3a6, providing a certain torque and good mechanical feedback, and allowing the housing to be opened and closed at will, which is convenient for the use of the terminal; when the left housing 1 and the right housing 2 are relatively unfolded, the force also acts on the first sliding member 3c1 and On the second sliding member 3c4, the sliding end of the first sliding member 3c1 performs limited sliding in the arc guide grooves provided on the inner side of the third crescent member 3c2 and on one side of the second grooved arc vertical plate 3c3, and the sliding end of the second sliding member 3c4 also performs limited sliding in the arc guide grooves provided on the inner side of the fourth crescent member 3c5 and on the other side of the second grooved arc vertical plate 3c3, so that the first sliding member 3c1 cooperates with the torque mechanism 3a to drive the left shell 1 and the second sliding member 3c4 cooperates with the torque mechanism 3a to drive the right shell 2 to perform synchronous linkage.

[0035] When the left shell 1 and the right shell 2 are unfolded, the rotating left shell 1 and the right shell 2 drive the first T-lock head 3b1 and the second T-lock head 3b3 to approach the U-shaped lock seat 3b2, and the locking hole at one end of the first T-lock head 3b1 is socketed and locked with the spherical head on the corresponding side of the two dumbbell-shaped lock tongues 3b5, and the locking hole at one end of the second T-lock head 3b3 is socketed and locked with the spherical head on the other side of the two dumbbell-shaped lock tongues 3b5, so as to realize the self-locking of the hinge mechanism 3 and avoid the accidental rotation of the left shell 1 and the right shell 2 after being fully unfolded. When the left shell 1 and the right shell 2 are closed, the rotating left shell 1 and the right shell 2 separate the first T-lock head 3b1 and the second T-lock head 3b3 from the U-shaped lock seat 3b2, without affecting the synchronous rotation and linkage process between the shrimp shell and the shell.

[0036] Example 2

[0037] See also Figure 6-8 The present invention provides an inward folding flexible screen terminal, comprising a left shell 1 and a right shell 2, wherein a hinge mechanism 3 for providing torque, unfolding and locking, and driving the two to rotate synchronously is installed between the left shell 1 and the right shell 2, the hinge mechanism 3 comprises a first shrimp shell member 31, a second shrimp shell member 32, and a third shrimp shell member 33 arranged in parallel, and a torque mechanism 3a, a locking mechanism 3b, and a synchronization mechanism 3c for realizing synchronous linkage between the three shrimp shell members and the shell are installed on the inner sides of the first shrimp shell member 31, the second shrimp shell member 32, and the third shrimp shell member 33, the locking mechanism 3b comprises a straight lock head 3b6 and a straight lock seat 3b7 respectively installed and fixed to the left shell 1 and the right shell 2 by screws, one end of the straight lock seat 3b7 is provided with a U-shaped lock groove 3b71 matching the end of the straight lock head 3b6, and the U-shaped lock groove 3b The slot walls on both sides of 71 are interspersed with and relatively positioned straight-line lock tongues 3b9, the spherical head at one end of the straight-line lock tongue 3b9 is interspersed with the lock hole provided at the end of the straight-line lock head 3b6, the other end of the straight-line lock tongue 3b9 is sleeved with a spring 3b8 placed inside the straight-line lock seat 3b7 and capable of resetting it, the inner sides of the first shrimp shell member 31, the second shrimp shell member 32 and the third shrimp shell member 33 are all provided with arc-shaped limiting grooves at positions directly opposite to the first arc-shaped vertical plate 3a3 with grooves, the arc-shaped vertical plate 3a7 with holes and the second arc-shaped vertical plate 3c3 with grooves, and the first arc-shaped vertical plate 3a3 with grooves, the arc-shaped vertical plate 3a7 with holes and the second arc-shaped vertical plate 3c3 with grooves are guided and limited and slid on the inner sides of the first shrimp shell member 31, the second shrimp shell member 32 and the third shrimp shell member 33 through the provided arc-shaped limiting grooves.

[0038] Specifically, when it is necessary to use this kind of inward-folding flexible screen device, in the process of pulling the left shell body 1 and the right shell body 2, the torque mechanism 3a of the hinge mechanism 3 is also consistent with the recorded process of providing torque in Example 1, and the synchronization mechanism 3c is also consistent with the process of realizing the synchronous rotation of the left shell body 1 and the right shell body 2 recorded in Example 1.

[0039] When the left shell 1 and the right shell 2 are unfolded, the rotating left shell 1 drives the I-shaped lock head 3b6 and the right shell 2 drives the I-shaped lock seat 3b7 to move closer, and the lock hole at the end of the I-shaped lock head 3b6 is socketed with the spherical head at one end of the I-shaped lock tongue 3b9, and the I-shaped lock tongue 3b9 cooperates with the I-shaped lock head 3b6 to achieve locking of the hinge mechanism 3, and further achieves locking of the left shell 1 and the right shell 2 in a fully unfolded state, avoiding accidental rotation of the unfolded left shell 1 and the right shell 2, and when closing the left shell 1 and the right shell 2, the rotating left shell 1 and the right shell 2 separate the I-shaped lock head 3b6 from the I-shaped lock seat 3b7, without affecting the synchronous rotation and linkage process between the shrimp shell and the shell.

[0040] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An inward folding flexible screen terminal, comprising a left shell and a right shell, characterized in that: A hinge mechanism is installed between the left shell and the right shell to provide torque, unfold and lock, and drive the two to rotate synchronously. The hinge mechanism includes three parallel first shrimp shell members, second shrimp shell members, and third shrimp shell members. Torque mechanisms, locking mechanisms, and synchronization mechanisms that realize synchronous linkage between the three shrimp shell members and the shell are installed on the inner sides of the first shrimp shell member, the second shrimp shell member, and the third shrimp shell member. The torsion mechanism comprises a first toothed sliding member and a second toothed sliding member fixedly installed with the left shell body and the right shell body respectively by screws, a first crescent member and a first arc-shaped vertical plate with grooves fixedly installed with the inner side of the first shrimp shell member by screws are arranged on both sides of the first toothed sliding member, an arc-shaped guide groove for guiding the sliding end of the first toothed sliding member is provided on the inner sides of the first crescent member and the first arc-shaped vertical plate with grooves for guiding the sliding end of the first toothed sliding member, a second crescent member and an arc-shaped vertical plate with holes fixedly installed with the inner side of the first shrimp shell member by screws are provided on both sides of the second toothed sliding member, and an arc-shaped vertical plate with holes for guiding the sliding end of the second toothed sliding member is also provided on the inner sides of the arc-shaped vertical plate with holes and the second crescent member, a first double-toothed rotating shaft is inserted and connected between the opening at one end of the top of the first crescent member and the opening at one end of the top of the arc-shaped vertical plate with holes, and the top of the arc-shaped vertical plate with holes is connected to the first double-toothed rotating shaft. A second double-toothed shaft is inserted and connected between the opening at the other end of the part and the opening at the top end of the second crescent part, one of the ring teeth of the first double-toothed shaft is meshed and connected with the rack at the top of the sliding end of the first toothed sliding member, and one of the ring teeth of the second double-toothed shaft is meshed and connected with the rack at the top of the sliding end of the second toothed sliding member, and the other ring tooth of the first double-toothed shaft and the other ring tooth of the second double-toothed shaft are both placed between the first arc-shaped vertical plate with grooves and the arc-shaped vertical plate with holes, and four transmission gears that provide torque and can realize synchronous rotation of the first toothed sliding member and the second toothed sliding member are meshed and connected between the two ring teeth placed between the first arc-shaped vertical plate with grooves and the arc-shaped vertical plate with holes, and the four transmission gears are meshed and connected with each other and are respectively inserted and connected with the pin holes opened in the first arc-shaped vertical plate with grooves and the arc-shaped vertical plate with holes through pin shafts; The locking mechanism comprises a U-shaped lock seat fixedly installed with the inner side of the first shrimp shell member by screws, two lock seat partitions in opposite positions are fixedly installed in the middle of the U-shaped lock seat, one side of the two lock seat partitions is provided with a dumbbell-shaped lock tongue, and two spherical heads provided on one side of the two dumbbell-shaped lock tongues pass through the openings opened in the corresponding lock seat partitions and are placed between the two lock seat partitions, two convex columns provided on the other side of the two dumbbell-shaped lock tongues are sleeved with a spring 1 for resetting the dumbbell-shaped lock tongues, one end of the spring 1 is sleeved with a convex column corresponding to the end of the U-shaped lock seat, the spherical heads of the two dumbbell-shaped lock tongues on the same side thereof are interlaced and connected with the lock hole of the first T-shaped lock head, the spherical heads of the two dumbbell-shaped lock tongues on the other side thereof are interlaced and connected with the lock hole of the second T-shaped lock head, and the first T-shaped lock head and the second T-shaped lock head are respectively installed and fixed with the left shell and the right shell by screws; The locking mechanism comprises a straight lock head and a straight lock seat respectively fixed to the left housing and the right housing by screws, one end of the straight lock seat is provided with a U-shaped lock groove matching the end of the straight lock head, both sides of the U-shaped lock groove are inserted and connected with straight lock tongues in opposite positions, a spherical head at one end of the straight lock tongue is inserted and connected with a lock hole provided at the end of the straight lock head, and the other end of the straight lock tongue is sleeved with a spring placed inside the straight lock seat and capable of resetting it; The synchronization mechanism includes a first sliding member and a second sliding member which are respectively fixed to the inner sides of the left shell body and the right shell body by screws, a second arc-shaped vertical plate with a groove is provided between the first sliding member and the second sliding member, a third crescent member and a fourth crescent member which are respectively fixed to the inner side of the first shrimp shell member by screws are provided on one side of the first sliding member and one side of the second sliding member, and an arc-shaped guide groove for guiding the sliding end of the first sliding member is provided on the inner side of the third crescent member and one side of the second arc-shaped vertical plate with a groove, and an arc-shaped guide groove for guiding the sliding end of the second sliding member is also provided on the inner side of the fourth crescent member and the other side of the second arc-shaped vertical plate with a groove.

2. The inward folding flexible screen terminal according to claim 1, characterized in that: A cover plate for smoothly supporting the flexible screen is installed on the inner top of the first shrimp shell by screws, and mounting plates flush with the cover plate and used for mounting the flexible screen are installed on the inner sides of the left shell and the right shell.

3. The inward folding flexible screen terminal according to claim 2, characterized in that: The first shrimp shell component, the second shrimp shell component and the third shrimp shell component are all provided with arc-shaped limiting grooves at positions opposite to the first arc-shaped vertical plate with grooves, the arc-shaped vertical plate with holes and the second arc-shaped vertical plate with grooves.

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