CN111770217A

CN111770217A - Rotating mechanism and electronic equipment thereof

Info

Publication number: CN111770217A
Application number: CN202010513747.2A
Authority: CN
Inventors: 张前; 曾传华; 沈烈康
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-10-13
Also published as: CN114938403A

Abstract

The application provides a slewing mechanism with locking function, slewing mechanism includes: the device comprises a rotating shaft, a fixed table, a sliding frame, a sliding rod and a first elastic piece; the fixed table is arranged on the rotating shaft; the sliding frame is hinged with the rotating shaft and can rotate based on the rotating shaft; the sliding rod is inserted in the sliding frame and is hinged with the fixed platform; when the sliding frame rotates based on the rotating shaft, the sliding rod can slide based on the sliding frame, and the sliding rod can also rotate based on the fixed platform; the first elastic piece is arranged on the sliding frame and is abutted against the sliding rod; wherein: the slide bar is provided with a groove, and when the slide bar slides based on the sliding frame, the first elastic piece can rebound to the groove to clamp the slide bar. In such a way, when the first elastic piece rebounds to the groove, the rotating mechanism can realize self-locking, so that the stability of the rotating mechanism in a locking state is improved.

Description

Rotating mechanism and electronic equipment thereof

Technical Field

The application relates to the technical field of electronic equipment, in particular to a rotating mechanism and electronic equipment thereof.

Background

With the continuous development of the flexible screen, more and more mobile phone manufacturers begin to adopt the flexible screen as the screen of the mobile phone, and the folding of the mobile phone screen is realized through the flexible screen, so that the mobile phone has the function of a tablet personal computer.

The existing folding screen mobile phone generally adopts a mechanical rotating shaft structure, and the flexible screen is driven by the rotating shaft to be bent to a certain degree, so that the folding of the flexible screen is realized. The mechanical rotating shaft structure is mainly used for realizing folding of the mobile phone through shaft pin type connection or gear meshing. However, the mobile phone is easy to shake under the influence of external force when being unfolded or folded, and self-locking cannot be realized within a certain angle, so that the stability of the mobile phone after being unfolded or folded is influenced.

Disclosure of Invention

An aspect of an embodiment of the present application provides a rotation mechanism having a lock function, including: the device comprises a rotating shaft, a fixed table, a sliding frame, a sliding rod and a first elastic piece; the fixed table is arranged on the rotating shaft; the sliding frame is hinged with the rotating shaft and can rotate based on the rotating shaft; the sliding rod is inserted in the sliding frame and is hinged with the fixed platform; when the sliding frame rotates based on the rotating shaft, the sliding rod can slide based on the sliding frame, and the sliding rod can also rotate based on the fixed table; the first elastic piece is arranged on the sliding frame and is abutted against the sliding rod; wherein: the slide bar is provided with a groove, and when the slide bar slides based on the sliding frame, the first elastic piece can rebound into the groove to clamp the slide bar.

Another aspect of the embodiments of the present application provides an electronic device, including: the flexible display screen, the middle frame, the rear cover and the rotating mechanism are arranged on the front cover; the flexible display screen is attached to one surface of the middle frame, and the rear cover is arranged on the other surface of the middle frame in a covering mode; the rotating shaft is arranged on the middle frame along the axis and is hinged with the middle frame, so that the flexible display screen and the rear cover can be folded based on the rotating shaft under the driving of the middle frame; wherein: the rotating mechanism further comprises a flexible piece; the flexible piece is arranged between the rotating shaft and the middle frame.

The rotating mechanism and the electronic equipment thereof provided by the embodiment of the application are hinged to the rotating shaft through the sliding frame, the sliding rod is hinged to the fixed station on the rotating shaft, and the sliding rod is further inserted into the sliding frame, so that the rotating centers of the sliding frame and the sliding rod are inconsistent. When the sliding frame rotates based on the rotating shaft, the sliding rod can slide based on the sliding frame due to the fact that the radius difference and the rotation center are inconsistent. Furthermore, through setting up first elastic component on the carriage, set up the recess on the slide bar, and first elastic component and slide bar butt setting for when the slide bar slided on the carriage, first elastic component can kick-back to the recess in order to block the slide bar under self elasticity effect, thereby restricts the rotation of pivot through blocking the slide bar, realizes slewing mechanism's locking function.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device 10 provided in an embodiment of the present application;

FIG. 2 is an exploded view of the electronic device 10 of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the flexible display screen 100 of FIG. 1 along V-V;

FIG. 4 is an enlarged view of a portion of FIG. 3 at D;

FIG. 5 is another enlarged partial view taken at D in FIG. 3;

FIG. 6 is a schematic structural view of the support plate 120 of FIG. 3;

FIG. 7 is a schematic structural diagram of the buffer layer 130 in FIG. 3;

FIG. 8 is an exploded view of the rotation mechanism 300 of FIG. 2;

fig. 9 is a schematic view of a connection structure of the middle frame 210 and the rotating mechanism 300;

fig. 10 is a partial enlarged view at E in fig. 9;

fig. 11 is a partially enlarged view of the coupling structure of the rotating mechanism 300 and the middle frame 210 in fig. 9;

FIG. 12 is a partial cross-sectional view of the middle shaft 310 and the middle frame 210 of FIG. 9 along VI-VI;

fig. 13 is a partial sectional view of the hinge 310 and the middle frame 210 of fig. 12 in a folded state;

FIG. 14 is a schematic view of the carriage 320 of FIG. 8;

FIG. 15 is a schematic view of the connection structure of the sliding frame 320 and the sliding rod 330 in FIG. 8;

FIG. 16 is a schematic view of a connection structure of the slide rod 330 and the synchronizing gear 340 in FIG. 8;

fig. 17 is a schematic view illustrating a connection structure of the slide bar 330 and the first elastic member 360 in fig. 8;

fig. 18 is a schematic structural view of the first elastic member 360 of fig. 17;

fig. 19 is a schematic structural view of the contact portion 361 in fig. 18;

FIG. 20 is a schematic structural view of the support bracket 350 of FIG. 8;

FIG. 21 is a schematic view of the carriage 320 of FIG. 8 from another perspective;

FIG. 22 is a schematic view of the connection between the support bracket 350 and the carriage 320 of FIG. 8;

fig. 23 is a schematic sectional view of the support frame 350 and the sliding frame 320 of fig. 22 taken along ix-ix.

Detailed Description

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.

The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive work are within the scope of the present application. Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device 10 according to an embodiment of the present disclosure, and fig. 2 is an exploded structural diagram of the electronic device 10 in fig. 1.

Referring to fig. 1 to 2, as shown in fig. 1, an electronic device 10 provided in the present embodiment may be a foldable mobile phone, a foldable tablet computer, a foldable personal digital assistant, a foldable electronic book reader, etc., and the present embodiment takes the foldable mobile phone as an example to be described as follows. The electronic device 10 may include: flexible display screen 100, housing 200, and rotation mechanism 300. The flexible display screen 100 and the housing 200 enclose together to form an accommodating space, and the rotating mechanism 300 is connected with the flexible display screen 100 and the housing 200 respectively and is located in the accommodating space. The flexible display screen 100 and the housing 200 can be unfolded and folded along the axis 11 by the rotation mechanism 300. The rotation mechanism 300 not only has the function of locking the unfolded state and the folded state of the electronic device 10, but also can improve the flatness of the flexible display 100 in the unfolded state. In this embodiment, the axis 11 may be a symmetrical folding line of the electronic device 10, i.e. the electronic device 10 may be symmetrical about the axis 11. In some embodiments, the axis 11 may also be an asymmetric folding line, for example, a third or a fourth of the area of the electronic device 10 may be folded along the axis 11, and the specific folding area setting may be adjusted according to actual requirements, which is not limited in this embodiment. Further, the axis 11 may not only be placed longitudinally as shown in the drawings, so that the electronic apparatus 10 is folded left and right based on the axis 11. It may also be placed laterally so that the electronic device 10 folds up and down based on the axis 11.

Referring to fig. 3 to 7 in conjunction with fig. 1, fig. 3 is a schematic cross-sectional view of the flexible display panel 100 of fig. 1 along v-v, fig. 4 is a partial enlarged view of D in fig. 3, fig. 5 is another partial enlarged view of D in fig. 3, fig. 6 is a schematic structural view of the supporting plate 120 of fig. 3, and fig. 7 is a schematic structural view of the buffer film layer 130 of fig. 3.

As shown in fig. 1 and 3, the flexible display screen 100 may be attached to one surface of the housing 200 and connected to related functional devices in the electronic device 10, so as to display images on the electronic device 10. The flexible display screen 100 may include: a display module 110, a support plate 120 and a buffer layer 130. The buffer layer 130 is attached to the housing 200, the supporting plate 120 is attached to a surface of the buffer layer 130 away from the housing 200, and the display module 110 is attached to a surface of the supporting plate 120 away from the housing 200. That is, the buffer layer 130 and the supporting plate 120 are stacked on a surface of the display module 110 away from the display area. The display module 110 may form a corresponding image frame according to the electrical signal of the electronic device 10, so as to display an image on the electronic device 10. The supporting plate 120 is used for supporting and fixing the display module 110 to maintain the flat shape of the display module 110. The buffer layer 130 is used for protecting the display module 110 and plays a role in buffering.

Further, the display module 110 includes a back film 111, a flexible display substrate 112, a polarizer 113, a touch panel 114, and a protection film 115, which are sequentially stacked in a direction away from the supporting board 120. The back film 111 is attached to one surface of the support plate 120 close to the display module 110 to separate the support plate 120 and the flexible display substrate 112, so that the support plate 120 is prevented from being damaged to cause the flexible display substrate 112 in the folding process of the electronic device 10 along the axis 11. The flexible display substrate 112 may in particular be an OLED screen, the organic plastic layer of which is thinner, lighter and more flexible than the crystalline layer of an LED or LCD. Meanwhile, the light emitting layer of the OLED is light, and the base layer can be made of a material with high flexibility instead of a rigid material. Therefore, the OLED screen is used for image display, and the folding performance required by the flexible display screen 100 can be satisfied. The polarizer 113 is a circular polarizer and is used to prevent the display module 110 from reflecting and shining after being irradiated by light. The touch panel 114 may be an integrated circuit for responding to a touch operation on the flexible display screen 100 to implement a touch operation function of the electronic device 10. The protective film 115 may be a CPI (color Polyimide) film, which has a heat resistance superior to other plastic materials such as polyethylene Terephthalate (PET), Polycarbonate (PC), etc., and is not fragile after being bent, so that not only can the folding performance required by the flexible display panel 100 be satisfied, but also a certain protective effect can be achieved.

As shown in fig. 4 to 6, the support plate 120 may include: a body portion 121 and a plurality of filling portions 122 provided on the body portion 121. The main body 121 may be formed with a plurality of through grooves 1210, the plurality of filling portions 122 are disposed in the plurality of through grooves 1210, and the shape of the filling portions 122 is adapted to the through grooves 1210. The plurality of through grooves 1210 are used to reduce the rigidity of the main body 121 and facilitate the folding of the support plate 120. The filling portions 122 are used for filling the through grooves 1210 to support the display module 110, so as to prevent the display module 110 from sinking in the areas of the through grooves 1210, and improve the flatness of the flexible display screen 100. The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.

Specifically, body portion 121 may include a first planar region 1211, a second planar region 1212, and a fold region 1213. Wherein the folding area 1213 is foldable based on the axis 11, the first and second

planar areas

1211 and 1212 are respectively connected to two sides of the folding area 1213 parallel to the axis 11, and the first and second

planar areas

1211 and 1212 are further symmetrically disposed about the folding area 1213. The folding region 1213 may be a region of the support plate 120 corresponding to the rotation mechanism 300, and the folding region 1213 is opened with a plurality of through slots 1210. In this embodiment, the through grooves 1210 may be arranged in multiple rows in parallel to the axis 11 in the folding region 1213, and the through grooves 1210 in two adjacent rows may be staggered, that is, the through grooves 1210 in one of the two adjacent rows may be aligned with the gaps between the through grooves 1210 in the other row. In some embodiments, the plurality of through slots 1210 may also be arranged in a matrix, and only the plurality of through slots 1210 need to be disposed at the folding region 1213. The plurality of through grooves 1210 may not penetrate the folding region 1213 in the thickness direction of the main body 121, and the rigidity of the main body 121 in the folding region 1213 may be reduced to satisfy the bendability required for the support plate 120. Therefore, the rigidity of the support plate 120 in the folding area 1213 can be reduced by forming the through groove 1210 in the folding area 1213, so that the folding area 1213 can have a certain bending performance and a certain deformation recovery capability, thereby realizing the unfolding and folding of the support plate 120.

Further, the body portion 121 may be made of a metal material, such as steel, copper, aluminum, or the like. This allows the support plate 120 to have a certain structural strength and also a certain ductility. In the present embodiment, the body part 121 may be a steel sheet made of stainless steel, and may have a thickness of 0.08mm to 0.12 mm. For example, the thickness of the main body 121 in this embodiment may be 0.1mm, and a steel sheet with a thickness of 0.1mm can optimize the supporting performance of the supporting plate 120 for the display module 110 on the basis of ensuring that the thickness of the flexible display screen 100 is not too thick.

Further, the plurality of filling parts 122 may be optical glue. For example, in the present embodiment, the optical cement may be filled into the plurality of through grooves 1210. During filling, a layer of release paper is attached to the folding area 1213 to prevent the optical adhesive from leaking out of the through grooves 1210. The flowing of optical cement is limited by a limiting jig on the surface of the folding area 1213 departing from the release paper, so that the optical cement is only filled in the through grooves 1210, and the optical cement is uniformly filled by the scraper. After filling, the optical cement is cured and shaped by UV illumination, so that the optical cement is fixed in the through grooves 1210. Since the cured optical cement still has strong flexibility, the optical cement filled in the cured optical cement does not affect the bending performance of the folding region 1213. In some embodiments, the number of filling portions 122 may also be liquid silicone gel. For example, the filling portion 122 may be injection-molded into the through grooves 1210 by an injection molding machine, and after the injection molding, the curing is completed under the pressure maintaining of the mold, so as to fix the liquid silicone rubber in the through grooves 1210. In addition, in order to facilitate filling and injection molding of the liquid silicone rubber, in some embodiments, the filling part 122 may be further disposed to protrude from a side of the main body part 121 away from the display module 110 during the injection molding process, and the filling part 122 extends to two sides of the folding region 1213 parallel to the axis 11. For example, filler portion 122 may extend to first planar region 1211 and second planar region 1212. Specifically, the thickness of the filling part 122 protruding the main body part 121 away from the display module 110 may be 0.08mm to 0.12 mm. For example 0.09mm, 0.1mm, 0.11 mm. The filling part 122 may extend between the first planar region 1211 and the second planar region 1212 by a length of 0.3mm to 0.7 mm. For example 0.4mm, 0.5mm, 0.6 mm. Through the setting mode of the filling part 122, the filling and injection molding of the liquid silica gel can be facilitated, and the support performance after the liquid silica gel is solidified is improved. Accordingly, by providing a plurality of through grooves 1210 in main body 121, the rigidity of main body 121 can be reduced, and main body 121 can be folded while maintaining the support of main body 121. Through set up filling portion 122 in a plurality of logical groove 1210, when not influencing main part 121 bending, can also guarantee the planarization of display module assembly 110 in folding region 1213, avoid flexible display screen 100 to appear sunken phenomenon.

As shown in fig. 4 and 7, one surface of the buffer film layer 130 is attached to the housing 200, and the other surface is attached to the supporting plate 120. The buffer film layer 130 has a certain creep buffering effect, and when the flexible display screen 100 is impacted by an external force, the impact force on the display module 110 can be reduced. The buffer film layer 130 may include: a first attachment region 131, a second attachment region 132, and a third attachment region 133. Wherein the third conformable region 133 is foldable about axis 11, the first conformable region 131 and the second conformable region 132 respectively meet the third conformable region 133 on two sides parallel about axis 11. The projection of the first planar area 1211 on the buffer film layer 130 overlaps with the first attaching area 131; the projection of the second planar area 1212 on the buffer film layer 130 overlaps with the second attaching area 132; the projection of the folding region 1213 on the buffer film layer 130 overlaps the third fitting region 133. Correspondingly, the third attaching area 133 is also provided with a plurality of through holes 1331. The plurality of through holes 1331 are formed in the third attaching region 133 of the buffer film layer 130, so that the creep buffering effect of the buffer film layer 130 in the third attaching region 133 can be further enhanced, and the influence of the buffer film layer 130 on the bending property of the flexible display screen 100 is reduced. When the electronic device 10 falls, the housing 200 and the rotating mechanism 300 are twisted and deformed to drive the flexible display screen 100 to deform, and because the buffer film layer 130 has a good creep effect, the same deformation amount brings smaller impact force, so that the pulling force of the twisting deformation of the housing 200 and the rotating mechanism 300 on the flexible display screen 100 can be reduced. In this embodiment, the thicknesses of the first attaching region 131, the second attaching region 132 and the third attaching region 133 may be the same or different, and the specific thickness values of the first attaching region 131, the second attaching region 132 and the third attaching region 133 may be specifically set according to the requirement of the structure. In some embodiments, the through grooves 1210 may be disposed opposite to the through holes 1331, or may not be disposed opposite to the through holes 1331, and only the third bonding region 133 and the folding region 1213 are required to be disposed correspondingly.

Further, the buffer film layer 130 may further include a first adhesive layer 1301, a second adhesive layer 1302, and a flexible layer 1303 made of a flexible material, which are stacked. The through hole 1331 may penetrate the first adhesive layer 1301, the second adhesive layer 1302, and the flexible layer 1303 at the third attaching region 133. The flexible layer 1303 is disposed between the first adhesive layer 1301 and the second adhesive layer 1302, and the through holes 1331 penetrate through the first adhesive layer 1301, the second adhesive layer 1302, and the flexible layer 1303. The first adhesive layer 1301 is attached to the support plate 120, and the second adhesive layer 1302 is attached to the case 200. The impact force of the flexible display screen 100 from the impact is reduced by the flexible layer 1303 made of a flexible material. In this embodiment, the first adhesive layer 1301 and the second adhesive layer 1302 may be specifically back glue, and the flexible layer 1303 may be specifically made of flexible materials such as foam, rubber, and the like. Therefore, the buffer film layer 130 can not only be attached to the support plate 120 and the shell 200, but also have a better creep buffering effect. When the electronic device 10 is impacted, the impact force can be weakened, so that the probability that the flexible display screen 100 is damaged by the impact force is reduced.

As shown in fig. 1 to 2, the case 200 may include: a middle frame 210 and a rear cover 220. The flexible display screen 100 covers one side of the middle frame 210, the rear cover 220 covers the other side of the middle frame 210, and the three surround together to form an accommodating space. The accommodating space may be used to install the rotating mechanism 300, and may also be used to install other functional devices of the electronic device 10, such as a battery, a camera, a fingerprint sensor, and the like. The middle frame 210 is mainly used for supporting and fixing the functional devices installed in the accommodating space. For example, the middle frame 210 may be divided into a first middle frame 211 and a second middle frame 212 along the axis 11, and the rotating mechanism 300 may be disposed between the first middle frame 211 and the second middle frame 212 along the axis 11 and connected to the first middle frame 211 and the second middle frame 212, respectively. Thereby allowing the first middle frame 211 and the second middle frame 212 to be folded along the axis 11 by the rotation mechanism 300. Accordingly, the rear cover 220 may be divided into a first rear cover 221 and a second rear cover 222, which are respectively covered on the first middle frame 211 and the second middle frame 212 to improve the appearance integrity of the electronic device 10.

Further, the first rear cover 221 and the second rear cover 222 can be connected through a flexible material, and the flexible material is disposed in a region corresponding to the rotating mechanism 300, so that the rotating mechanism 300 can be shielded by the flexible material, the bending property required by the electronic device 10 in the region of the rotating mechanism 300 is further satisfied, and meanwhile, a certain waterproof and dustproof effect can be achieved. In addition, the flexible material can be arranged at intervals with the rotating mechanism 300, and a certain deformation space is provided for the rotating mechanism 300 after bending and deforming. In this embodiment, the material of the middle frame 210 may be glass, metal, hard plastic, etc., so that the middle frame 210 has a certain structural strength and can support the functional devices in the accommodating space. Accordingly, the material of the rear cover 220 may also be glass, metal, hard plastic, etc., so that the rear cover 220 also has a certain structural strength, which may protect the electronic device 10. In addition, since the middle frame 210 and the rear cover 220 are generally directly exposed to the external environment, the middle frame 210 and the rear cover 220 may preferably have certain wear-resistant, corrosion-resistant, scratch-resistant, and other properties, or the outer surfaces of the middle frame 210 and the rear cover 220 (i.e., the outer surfaces of the electronic device 10) may be coated with a layer of functional material for wear-resistant, corrosion-resistant, scratch-resistant. In some embodiments, the rear cover 220 may also be made of a flexible material, and the whole surface of the rear cover is attached to the surface of the middle frame 210 away from the flexible display screen 100, so as to improve the appearance integrity of the electronic device 10.

All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Referring to fig. 8 to 13, fig. 8 is an exploded view of the rotation mechanism 300 in fig. 2, fig. 9 is a schematic view of a connection structure between the middle frame 210 and the rotation mechanism 300, fig. 10 is a partial enlarged view of a portion E in fig. 9, fig. 11 is a partial enlarged view of a connection structure between the rotation mechanism 300 and the middle frame 210 in fig. 9, fig. 12 is a schematic view of a partial cross-sectional structure of the rotation shaft 310 and the middle frame 210 along vi-vi in fig. 9, and fig. 13 is a schematic view of a partial cross-sectional structure of a folded state of the rotation shaft 310 and the middle frame 210 in fig. 12.

As shown in fig. 8 to 9, the rotating mechanism 300 may be disposed on the middle frame 210 along the axis 11, one surface of the flexible display screen 100 close to the middle frame 210 is attached to the rotating mechanism 300, and the rear cover 220 covers one surface of the middle frame 210 far from the flexible display screen 100. Therefore, the flexible display screen 100, the middle frame 210 and the rear cover 220 can be folded under the driving of the rotating mechanism 300, so as to realize the folding function of the electronic device 10. The rotating mechanism 300 may include: the rotating shaft 310, the sliding rack 320, the sliding rod 330, the synchronizing gear 340, the supporting rack 350, the first elastic member 360, the second elastic member 370, the pin 380 and the fixed table 390. Wherein, the rotating shaft 310 may be disposed between the first middle frame 211 and the second middle frame 212 along the axis 11, and connected with the first middle frame 211 and the second middle frame 212, such that the first middle frame 211 and the second middle frame 212 may be rotatably folded based on the rotating shaft 310. A fixed stage 390 is provided on the rotation shaft 310 for mounting the sliding bar 330 and the synchronizing gear 340. The sliding frame 320 is hinged to the rotating shaft 310 and can rotate based on the rotating shaft 310, and the sliding frame 320 is also connected to the middle frame 210. The sliding bar 330 is slidably connected to the sliding frame 320 and is hinged to the fixed stage 390. The first elastic element 360 is disposed on the sliding frame 320 and abuts against the sliding rod 330. The sliding rack 320, the sliding rod 330, the first elastic member 360 and the fixing stand 390 cooperate to lock the electronic device 10 in the unfolded state or the folded state. The synchronizing gear 340 is disposed on the stationary stage 390 and is rotatable based on the rotation shaft 310. The synchronizing gear 340 is used to maintain the consistency of the rotation of the first middle frame 211 and the second middle frame 212. The support frame 350 is disposed on the first middle frame 211 and the second middle frame 212, and the sliding frame 320 is slidably connected to the support frame 350, and the two are fixed by a pin 380. The second elastic member 370 is disposed between the support frame 350 and the carriage 320 and abuts against the support frame 350 and the carriage 320, respectively. The sliding frame 320, the supporting frame 350 and the second elastic member 370 cooperate to improve the flatness of the flexible display screen 100 in the unfolded state.

As shown in fig. 10 to 11, the rotation shaft 310 is disposed between the first middle frame 211 and the second middle frame 212. The hinge 310 may include: a support shaft 311, a connection shaft 312, and a flexible member 313. Wherein the support shaft 311 is hinged with the connection shaft 312 such that the connection shaft 312 can rotate based on the support shaft 311. For example, the support shaft 311 and the connecting shaft 312 are provided with a plurality of hinges 3101, and the plurality of hinges 3101 are hinged to each other such that the support shaft 311 and the connecting shaft 312 are hinged. The connecting shaft 312 is also connected with the first and second

middle frames

211 and 212 so that the first and second

middle frames

211 and 212 can be rotated for folding based on the supporting shaft 311. For example, the number of the connecting shafts 312 may be two, two connecting shafts 312 are respectively provided at both sides of the supporting shaft 311 in parallel with respect to the axis 11, and the two connecting shafts 312 are also respectively connected with the first middle frame 211 and the second middle frame 212, thereby allowing the first middle frame 211 and the second middle frame 212 to be folded by rotating based on the supporting shaft 311. In this embodiment, the supporting shaft 311 is used to support the flexible display screen 100, limit the bending angle of the flexible display screen 100, and prevent the flexible display screen 100 from being excessively folded and damaged. For example, the number of the support shafts 311 may be three, and the three support shafts 311 are hinged to each other by a plurality of hinges 3101. The three support shafts 311 may be disposed side by side along the axis 11 between the first middle frame 211 and the second middle frame 212. When the first middle frame 211 and the second middle frame 212 are folded based on the rotation of the supporting shafts 311, the three supporting shafts 311 are rotated and bent to form an arc surface with a certain radian, and the flexible display screen 100 attached to the middle frame 210 can be bent with the same radian under the support of the supporting shafts 311, so that the flexible display screen 100 is prevented from being excessively bent. In some embodiments, the number of the supporting shafts 311 can be specifically set according to the actually required bending arc.

As shown in fig. 12 to fig. 13, during the folding process of the electronic device 10, the structures of the flexible display screen 100 may be dislocated due to inconsistent bending radii, the middle frame 210 and the rotation shaft 310 may be pressed, and the middle frame 210 and the rotation shaft 310 are rigid structures and cannot be pressed to deform, which may cause the flexible display screen 100 to be damaged due to the pulling of the middle frame 210 and the rotation shaft 310. Therefore, in the present embodiment, the flexible member 313 is disposed between the middle frame 210 and the connection shaft 312, and the flexible member 313 is also disposed between the support shaft 311 and the connection shaft 312, so that the middle frame 210 and the rotation shaft 310 can be buffered by the flexible member 313 when being subjected to a large impact force, thereby canceling out the corresponding pressing force. By arranging the flexible member 313 among the middle frame 210, the supporting shaft 311 and the connecting shaft 312 for supporting, the probability of damage to the flexible display screen 100 due to the pressing displacement when the middle frame 210 and the rotating shaft 310 are impacted can be reduced. Specifically, the flexible member 313 may be made of flexible materials such as foam, and rubber. For example, in the present embodiment, foam may be used as the material for the flexible member 313. Foam has the property of increasing viscosity with increasing applied pressure relative to rubber and foam. Namely, when the foam is subjected to external instant large impact force, the foam has certain structural strength and is not easy to deform; when the force to which the foam is subjected is slowly applied, it exhibits its normal characteristics, becoming soft and easily deformable. Therefore, the foam is used as the material for the flexible member 313, which not only can support the middle frame 210 and the rotation shaft 310 when the electronic device 10 is dropped and subjected to a large impact force, but also can satisfy the flexibility and deformability required in the conventional folding process of the electronic device 10.

Referring to fig. 14 to 19 in conjunction with fig. 10, fig. 14 is a schematic structural view of the sliding rack 320 in fig. 8, fig. 15 is a schematic structural view of a connection structure of the sliding rack 320 and the sliding rod 330 in fig. 8, fig. 16 is a schematic structural view of a connection structure of the sliding rod 330 and the synchronizing gear 340 in fig. 8, fig. 17 is a schematic structural view of a connection structure of the sliding rod 330 and the first elastic member 360 in fig. 8, fig. 18 is a schematic structural view of the first elastic member 360 in fig. 17, and fig. 19 is a schematic structural view of the contact portion 361 in fig. 18.

As shown in fig. 10 and 14, the carriage 320 is connected to the connecting shaft 312 and is rotatable by the connecting shaft 312 based on the supporting shaft 311. The sliding bracket 320 may also be coupled to the center frame 210 to improve the security of the installation of the sliding bracket 320. The sliding bar 330 is inserted into the sliding frame 320 and is hinged to the fixed stage 390 on the supporting shaft 311. Since the rotation center of the sliding frame 320 is the supporting shaft 311 and the rotation center of the sliding bar 330 is the fixed stage 390, the rotation radii of the sliding frame 320 and the sliding bar 330 are not uniform. Therefore, when the carriage 320 rotates based on the support shaft 311, the sliding rod 330 may not only rotate around the fixed stage 390 by the carriage 320, but also slide based on the carriage 320. In addition, since the connecting shaft 312 is connected to the middle frame 210 and the sliding frame 320 is connected to the connecting shaft 312, when the middle frame 210 is folded along with the rotation of the supporting shaft 311, the sliding frame 320 moves along with the middle frame 210 and the sliding rod 330 moves along with the sliding frame 320. That is, the middle frame 210, the sliding frame 320 and the sliding rod 330 are linked. For example, the number of the sliding frames 320 may be two, and the number of the sliding bars 330 may also be two. The two sliding frames 320 are respectively disposed on the two connecting shafts 312, and the two sliding rods 330 are respectively inserted on the two sliding frames 320 and hinged to the fixed table 390. Since the two connecting shafts 312 are connected to the first and second

middle frames

211 and 212, respectively, the two carriages 320 and the two slide bars 330 can perform a linked motion with the rotation of the first and second

middle frames

211 and 212 when the first and second

middle frames

211 and 212 are rotated based on the supporting shafts 311 to be folded. In this embodiment, the fixed stage 390 is used not only for connecting the sliding bar 330 but also for mounting the synchronizing gear 340. The synchronizing gear 340 is also disposed on the fixed stage 390 and can be rotated based on the fixed stage 390 by the sliding bar 330. Which serves to maintain the consistency of the rotation of the first and second

middle frames

211 and 212 based on the support shaft 311. For example, the synchronizing gear 340 may include a first synchronizing gear 341 and a second synchronizing gear 342. Wherein the first and second synchronizing gears 341 and 342 are engaged with each other, and both the first and second synchronizing gears 341 and 342 are provided on the fixed stage 390. The first and second synchronizing gears 341 and 342 are connected to the two sliding bars 330, respectively. When the sliding rod 330 starts to rotate under the driving of the sliding rack 320, the first synchronizing gear 341 and the second synchronizing gear 342 start to rotate synchronously under the driving of the sliding rod 330, and the middle frame 210, the sliding rack 320 and the sliding rod 330 are in linkage. Therefore, the first and second synchronizing gears 341 and 342 can maintain the consistency of the rotational folding of the first and second

middle frames

211 and 212 based on the support shaft 311 by the two slide bars 330. In the present embodiment, the rotation direction of the synchronization gear 340 may be an unfolding direction and a folding direction of the electronic device 10. In some embodiments, the number of the synchronous gears 340 is four or more, and only two synchronous gears need to be meshed with one group of synchronous gears and arranged on the corresponding fixed table 390 and connected with the corresponding sliding rod 330.

As shown in fig. 15 to 17, the first elastic member 360 is disposed on the sliding frame 320 and abuts against the sliding rod 330. When the sliding rod 330 slides based on the sliding frame 320, the first elastic member 360 can lock the sliding rod 330, and the middle frame 210, the sliding frame 320 and the sliding rod 330 have linkage, so that the rotation of the middle frame 210 based on the supporting shaft 311 can be limited by locking the sliding rod 330, and the purpose of locking the unfolded state and the folded state of the electronic device 10 is achieved. For example, the sliding rod 330 has a groove 301, and when the sliding rod 330 slides based on the sliding rack 320, the first elastic member 360 is abutted against the sliding rod 330, so that the first elastic member 360 can rebound into the groove 301 under the action of its own elastic force to clamp the sliding rod 330, thereby stopping the rotation of the middle frame 210. In this embodiment, when the sliding bar 330 slides on the sliding frame 320 in a direction away from the fixed stage 390, the middle frame 210 may be in the process of folding; the middle frame 210 may be in the process of being unfolded when the sliding bar 330 slides on the sliding frame 320 in a direction to approach the fixed stage 390. When the middle frame 210 is completely unfolded or completely folded, the first elastic member 360 may be caught in the groove 301 of the sliding rod 330, so as to limit the rotation of the middle frame 210, improve the stability of the electronic device 10 in the unfolded state and the folded state, and prevent the electronic device 10 from being accidentally opened or closed. Further, the full expansion of the middle frame 210 in the present embodiment refers to a case where the first middle frame 211 and the second middle frame 212 are in the same plane; the full folding of the middle frame 210 refers to a case where the first middle frame 211 and the second middle frame 212 are in two different planes, and the two planes are parallel.

In particular, the slide bar 330 may comprise a first slide bar 331 and a second slide bar 332. The grooves 301 may include a first groove 3011, a second groove 3012, a third groove 3013, and a fourth groove 3014. Wherein, the first slide bar 331 and the second slide bar 332 are respectively hinged with the fixed table 390 on the support shaft 311, and both the first slide bar 331 and the second slide bar 332 are inserted on the sliding frame 320 and can slide in a direction away from or close to the fixed table 390 based on the sliding frame 320. For example, the sliding frame 320 is provided with a first sliding chute 321 and a second sliding chute 322, and the first sliding chute 321 is communicated with the second sliding chute 322. The first sliding bar 331 and the second sliding bar 332 are respectively inserted into the first sliding slot 321 and the second sliding slot 322, and can slide in the first sliding slot 321 and the second sliding slot 322 in a direction away from or close to the fixed platform 390. Further, the first slide bar 331 may also be connected with the second slide bar 332 to maintain the consistency of the sliding of the first slide bar 331 and the second slide bar 332. For example, a partial region of the first slider 331 not disposed in the first sliding slot 321 may extend in the direction of the second slider 332 to form a first connection portion 3311, and a partial region of the second slider 332 not disposed in the second sliding slot 322 may extend in the direction of the first slider 331 to form a second connection portion 3321. The first connecting portion 3311 and the second connecting portion 3321 are projected on the flexible display screen 100 to overlap each other, and are fixedly connected to each other by a screw. Meanwhile, the first connecting portion 3311 is also used to connect the synchronizing gear 340 to maintain the consistency of the rotation and folding of the middle frame 210. For example, the synchronizing gear 340 is provided with a connecting rod 343, the connecting rod 343 and the synchronizing gear 340 may be an integrally formed structure, and one end of the connecting rod 343 and the synchronizing gear 340 is hinged to the first connecting portion 3311, so as to drive the synchronizing gear 340 to rotate through the first sliding bar 331 and the second sliding bar 332.

Further, the first slide bar 331 and the second slide bar 332 can also be oppositely disposed so as to be abutted with both ends of the first elastic member 360, thereby catching the first slide bar 331 and the second slide bar 332 through the first elastic member 360. For example, a first slide rail 3310 may be formed on a surface of the first slide bar 331 disposed opposite to the second slide bar 332, and a second slide rail 3320 may be formed on a surface of the second slide bar 332 disposed opposite to the first slide bar 331. The two ends of the first elastic member 360 are respectively abutted against the first slide rail 3310 and the second slide rail 3320, and can slide based on the first slide rail 3310 and the second slide rail 3320. Thereby forming a structure in which the first and second slide bars 331 and 332 clamp the first elastic member 360. The first slide rail 3310 is provided with a first groove 3011 and a third groove 3013, and the first groove 3011 and the third groove 3013 are arranged at intervals. The second sliding rail 3320 is provided with a second groove 3012 and a fourth groove 3014, and the second groove 3012 and the fourth groove 3014 are disposed at intervals. Because the first sliding groove 321 is communicated with the second sliding groove 322, the first groove 3011 may be disposed opposite to the second groove 3012 to form a first clamping position a, and the third groove 3013 may be disposed opposite to the fourth groove 3014 to form a second clamping position B. The first clamping position a may be located on a side of the second clamping position B away from the stationary stage 390. When the first elastic member 360 slides on the first slide rail 3310 and the second slide rail 3320, it can be clamped at the first clamping position a or the second clamping position B, so as to clamp the first slide bar 331 and the second slide bar 332, so that the middle frame 210 stops rotating, and the extended state and the folded state of the electronic device 10 are locked. For example, in the present embodiment, since the first clamping position a is located on a side of the second clamping position B away from the synchronizing gear 340, when the first sliding bar 331 and the second sliding bar 332 slide toward the synchronizing gear 340, the first elastic member 360 can be clamped to the first clamping position a along the first sliding rail 3310 and the second sliding rail 3320, and the middle frame 210 can be in a fully extended state. When the first sliding bar 331 and the second sliding bar 332 slide away from the synchronizing gear 340, the first elastic member 360 can be locked to the second locking position B along the first sliding rail 3310 and the second sliding rail 3320, and the middle frame 210 can be in a fully folded state. From this, through with the card of first elastic component 360 in first joint position A and second joint position B, can lock electronic equipment 10's expansion state and fold condition, improved electronic equipment 10 at the stability of expansion state and fold condition, avoid electronic equipment 10 unexpected opening or closing. In some embodiments, the first slide rail 3310 and the second slide rail 3320 may not be provided, and only the surfaces of the first slide bar 331 and the second slide bar 332 opposite to each other are provided with corresponding grooves 301, and the first elastic member 360 can slide on the first slide bar 331 and the second slide bar 332.

As shown in fig. 17 to 19, in the present embodiment, a distance from a middle position of the first groove 3011 to a middle position of the third groove 3013 may be determined by a specific bending radius of the electronic device 10. For example, the formula for calculating the distance from the middle position of the first slot 3011 to the middle position of the third slot 3013 may be: l ≈ pi (R)₁-R₂). Wherein L is the distance between the first and

third grooves

3011 and 3013, and R is₁Refers to the bend radius of the neutral layer of the flexible display screen 100; r₂Refers to the bending radius at which the first slide bar 331 and the second slide bar 332 are located. In addition, in the present embodiment, the first groove 3011, the second groove 3012, and the third groove 3013And the side wall surface in the fourth recess 3014 may be an inclined surface or an arc surface, so as to facilitate the sliding of the first elastic element 360 and prevent the first elastic element 360 from being stuck in the recess 301. When the side wall surfaces in the first groove 3011, the second groove 3012, the third groove 3013, and the fourth groove 3014 are inclined surfaces, the inclination angle thereof may be specifically set according to actual requirements, and the closer the inclination angle is to the vertical angle, the larger the pushing force required for opening and closing the electronic device 10 is. In some embodiments, the distance between the first clamping position a and the second clamping position B may also be adjusted according to an actually required locking angle of the electronic device 10, so as to achieve locking of the electronic device 10 at different folding angles. Furthermore, multiple fold angle locking of the electronic device 10 may also be achieved by forming more than two snap-in positions.

Further, the sliding frame 320 is further provided with an installation groove 323. The first sliding groove 321, the second sliding groove 322 and the mounting groove 323 are communicated. The mounting groove 323 is used for mounting the first elastic member 360, so that the first elastic member 360 can be fixed on the sliding frame 320, and can also abut against the first sliding bar 331 and the second sliding bar 332 through the mounting groove 323 communicated with the first sliding slot 321 and the second sliding slot 322. Specifically, the first elastic member 360 may further include: the contact portion 361 and the elastic portion 362 are integrally formed. Here, the number of the contact portions 361 may be two, and the contact portions are respectively disposed at both ends of the elastic portion 362. The elastic part 362 is always in a compressed state, so that the two contact parts 361 can respectively abut against the first slide rail 3310 and the second slide rail 3320, thereby improving the firmness of the first elastic member 360 clamping the first slide bar 331 and the second slide bar 332. In this embodiment, the shape of the contact portion 361 can be adapted to the groove 301, so that the contact portion 361 can be smoothly clamped at the first clamping position a or the second clamping position B, and the probability of clamping is reduced. The one side that contact portion 361 deviates from the bottom wall of recess 301 can be provided with fixed column 3611, and elastic component 362 can overlap on fixed column 3611 to realize the fixed connection of contact portion 361 and elastic component 362. In the present embodiment, the elastic portion 362 may be a spring, and it may also form the first elastic member 360 together with the contact portion 361 by means of a metal insert. In some embodiments, the elastic portion 362 may also be made of other materials with elasticity, such as rubber, foam, plastic, etc.

Referring to fig. 20 to 23, fig. 20 is a schematic structural view of the support frame 350 in fig. 8, fig. 21 is a schematic structural view of the sliding frame 320 in fig. 8 from another view, fig. 22 is a schematic structural view of the support frame 350 and the sliding frame 320 in fig. 8, and fig. 23 is a schematic structural view of the support frame 350 and the sliding frame 320 in fig. 22 along the section ix-ix.

As shown in fig. 20 to 23, the support frame 350 is disposed on a side of the sliding frame 320 away from the rotating shaft 310, and at least a portion of the sliding frame 320 is disposed in the support frame 350, while the sliding frame 320 can slide on the support frame 350. For example, a third sliding groove 351 is formed on a surface of the support frame 350 close to the sliding frame 320, and at least a partial region of the sliding frame 320 is disposed in the third sliding groove 351 and can slide in the third sliding groove 351. The second elastic member 370 is disposed inside the third sliding groove 351, and both ends of the second elastic member 370 abut the carriage 320 and the support bracket 350, respectively, in the sliding direction of the carriage 320. For example, the sliding frame 320 has a first positioning column 326 formed thereon, the supporting frame 350 has a second positioning column 352 formed thereon, and the first positioning column 326 and the second positioning column 352 are disposed opposite to each other. One end of the second elastic element 370 is sleeved on the first positioning post 326, and the other end thereof is sleeved on the second positioning post 352. The assembly carriage 320, the support bracket 350 and the second elastic member 370 are positioned by the first positioning post 326 and the second positioning post 352.

Further, in the present embodiment, the second elastic element 370 may be always in a compressed state and respectively abut against the sliding frame 320 and the supporting frame 350, so that the sliding frame 320 has a tendency to slide out of the third sliding groove 351. The sliding frame 320 and the supporting frame 350 are fixed through a pin 380, so that the sliding frame 320 is prevented from sliding out of the supporting frame 350. For example, the support frame 350 is provided with a limiting hole 353, and the pin 380 passes through the limiting hole 353 and is disposed in the overlapping area of the sliding frame 320 and the support frame 350, so as to prevent the sliding frame 320 from sliding out of the support frame 350. The partial area of the pin 380 disposed in the position-limiting hole 353 is spaced from the inner wall of the position-limiting hole 353, and the spacing is smaller than the compression amount of the second elastic member 370, so that the second elastic member 370 is in a compressed state, and the sliding frame 320 and the support frame 350 always have a tendency to move away from each other. Meanwhile, the interval amount may be used to control a sliding stroke between the carriage 320 and the support frame 350. In the present embodiment, the second elastic member 370 may be a spring, and the number of the second elastic members 370 may be two. Accordingly, the number of the first positioning posts 326 and the second positioning posts 352 may be two.

In order to maintain the flatness of the flexible display 100 after the electronic device 10 is unfolded, when the flexible display 100 is assembled, the first middle frame 211 and the second middle frame 212 need to be pressed toward the synchronizing gear 340 in the unfolded state of the electronic device 10. Since the supporting frame 350 is disposed on the middle frame 210, the supporting frame 350 is also pressed toward the sliding frame 320, thereby compressing the second elastic member 370. The amount of movement of the pressing member toward the sliding frame 320 can be controlled by the distance between the pin 380 and the stopper hole 353. The flexible display screen 100 is attached to the middle frame 210 and the supporting frame 350 in a state that the first middle frame 211 and the second middle frame 212 are pressed against the synchronizing gear 340, and the pressing forces of the first middle frame 211 and the second middle frame 212 are released after pressure maintaining. At this time, due to the second elastic member 370, the supporting frame 350 and the sliding frame 320 tend to separate from each other, and the supporting frame 350 is fixed on the middle frame 210 and attached to the flexible display 100, so that the movement tendency is transmitted to the flexible display 100, and the flexible display 100 has a tensile force stretching in a direction away from the rotating shaft 310. From this, through the cooperation of carriage 320, support frame 350 and second elastic component 370, can make flexible display screen 100 receive certain pulling force after expanding, supplementary flexible display screen 100 exhibition is flat, and then has reduced the probability that flexible display screen 100 is folding back the stress influence and is arching in slewing mechanism 300 correspondence region, has improved flexible display screen 100's planarization.

The rotating mechanism 300 and the electronic device 10 thereof provided by the embodiment of the present application are hinged to the rotating shaft 310 through the sliding frame 320, the sliding bar 330 is hinged to the fixed platform 390 on the rotating shaft 310, and the sliding bar 330 is further inserted into the sliding frame 320, so that the rotation centers of the sliding frame 320 and the sliding bar 330 are inconsistent. When the sliding frame 320 rotates based on the rotation shaft 310, the sliding bar 330 may slide based on the sliding frame 320 due to the difference in radius and the inconsistency in the center of rotation. Further, the sliding frame 320 is provided with the first elastic member 360, the sliding rod 330 is provided with the groove 301, and the first elastic member 360 is abutted against the sliding rod 330, so that when the sliding rod 330 slides on the sliding frame 320, the first elastic member 360 can rebound into the groove 301 under the action of self elastic force to clamp the sliding rod 330, thereby limiting the rotation of the rotating shaft 310 by clamping the sliding rod 330, and realizing the locking function of the rotating mechanism 300.

The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. A rotating mechanism having a lock function, characterized by comprising: the device comprises a rotating shaft, a fixed table, a sliding frame, a sliding rod and a first elastic piece;

the fixed table is arranged on the rotating shaft;

the sliding frame is hinged with the rotating shaft and can rotate based on the rotating shaft; the sliding rod is inserted in the sliding frame and is hinged with the fixed platform;

when the sliding frame rotates based on the rotating shaft, the sliding rod can slide based on the sliding frame, and the sliding rod can also rotate based on the fixed table;

the first elastic piece is arranged on the sliding frame and is abutted against the sliding rod; wherein:

the slide bar is provided with a groove, and when the slide bar slides based on the sliding frame, the first elastic piece can rebound into the groove to clamp the slide bar.

2. The rotating mechanism of claim 1 wherein the slide bars comprise a first slide bar and a second slide bar connected; the groove includes: a first groove and a second groove;

the first sliding rod and the second sliding rod are inserted into the sliding frame and are respectively abutted against two ends of the first elastic piece;

the first sliding rod is provided with a first groove, the second sliding rod is provided with a second groove, and the first groove and the second groove are oppositely arranged;

when the first and second slide bars slide based on the carriage, both ends of the first elastic member may be rebounded into the first and second grooves to seize the first and second slide bars.

3. The rotation mechanism of claim 2, wherein the groove further comprises: a third groove and a fourth groove;

the third groove is formed in one side, adjacent to the first groove, of the first groove, and the third groove and the first groove are arranged at intervals; the adjacent side of the second groove is provided with the fourth groove, and the fourth groove and the second groove are arranged at intervals; wherein:

the third groove and the fourth groove are oppositely arranged, when the first slide bar and the second slide bar slide based on the sliding frame, two ends of the first elastic piece can also rebound to the third groove and the fourth groove so as to clamp the first slide bar and the second slide bar.

4. The rotation mechanism of claim 1, wherein the groove sidewall surface is a slope or a cambered surface.

5. The rotating mechanism according to claim 4, wherein the first elastic member comprises: an elastic portion and a contact portion;

the contact part is abutted against the sliding rod, and the shape of the contact part is matched with that of the groove;

the contact site deviates from the one side of recess diapire is provided with the fixed column, the elastic component cover is located the fixed column.

6. The rotating mechanism of claim 1, wherein the shaft comprises: the supporting shaft, the connecting shaft and the flexible piece;

the support shaft is hinged with the connecting shaft, and the sliding frame is connected with the connecting shaft;

the supporting shaft is provided with the fixed table, and the sliding rod is hinged with the fixed table and can rotate based on the fixed table;

the flexible piece is arranged between the supporting shaft and the connecting shaft.

7. The rotation mechanism of claim 6, wherein the flexible member is any one of foam, rubber, and foam.

8. The rotating mechanism of claim 6 further comprising a synchronizing gear;

the synchronous gear is arranged on the fixed table and is also connected with the sliding rod; when the slide bar rotates based on the fixed station, the synchronous gear is driven by the slide bar to rotate based on the fixed station.

9. The rotating mechanism of claim 1, further comprising: the support frame, the second elastic piece and the pin;

the support frame is positioned on one side of the sliding frame, which is far away from the rotating shaft, and at least part of area of the sliding frame is arranged in the support frame and can slide based on the support frame;

two ends of the second elastic piece are respectively abutted against the support frame and the sliding frame in the sliding direction of the sliding frame;

the pin is worn to locate the support frame with the carriage avoids the carriage is followed roll-off in the support frame.

10. The rotating mechanism according to claim 9, wherein the support frame is provided with a limiting hole, and the pin is inserted into the support frame and the sliding frame through the limiting hole; wherein:

the pin is arranged in the partial area of the limiting hole and the inner wall of the limiting hole at intervals.

11. An electronic device, characterized in that the electronic device comprises: a flexible display, a middle frame, a rear cover and a turning mechanism according to any one of claims 1 to 10;

the flexible display screen is attached to one surface of the middle frame, and the rear cover is arranged on the other surface of the middle frame in a covering mode; the rotating shaft is arranged on the middle frame along the axis and is hinged with the middle frame, so that the flexible display screen and the rear cover can be folded based on the rotating shaft under the driving of the middle frame; wherein:

the rotating mechanism further comprises a flexible piece; the flexible piece is arranged between the rotating shaft and the middle frame.

12. The electronic device of claim 11, wherein the rotation mechanism further comprises: the support frame, the second elastic piece and the pin;

the support frame is positioned on one side of the sliding frame, which is far away from the rotating shaft, and the support frame is arranged on the middle frame and is attached to the flexible display screen;

the sliding frame is at least partially arranged in the support frame and can slide based on the support frame;