CN212643302U - Hinge mechanism with length compensation function and folding display device - Google Patents
Hinge mechanism with length compensation function and folding display device Download PDFInfo
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- CN212643302U CN212643302U CN202021329227.8U CN202021329227U CN212643302U CN 212643302 U CN212643302 U CN 212643302U CN 202021329227 U CN202021329227 U CN 202021329227U CN 212643302 U CN212643302 U CN 212643302U
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Abstract
The utility model discloses a hinge mechanism with length compensation function, belonging to the technical field of flexible display equipment, comprising a hinge fixing piece and hinge frames symmetrically arranged at two sides of the hinge fixing piece, wherein the hinge frames at two sides are in symmetrical opening and closing movement relative to the hinge fixing piece; the folding device is characterized by further comprising hinge support plates arranged on the hinge frames in a sliding mode, the other ends of the hinge support plates are hinged with hinge connecting pieces, the hinge connecting pieces are assembled on the hinge fixing pieces through sliding groove assemblies and are linked with the hinge support plates to move in an arc mode relative to the hinge fixing pieces through the hinge support plates, and therefore the purpose that the length difference generated by equipment can be compensated in the folding process, and the screen is not damaged or arched due to the influence of acting forces such as pulling force is achieved.
Description
Technical Field
The utility model belongs to the technical field of flexible display device, particularly, relate to a hinge mechanism and folding display device with length compensation function.
Background
With the rapid development of the flexible display technology, in order to meet the requirements of the existing smart phone market, various flexible folding equipment products are successively released. The flexible folding equipment is designed through a core hinge mechanism, and a foldable flexible screen is carried on the hinge mechanism. The design of the hinge mechanism is directly related to the success or failure of folding products, including the operation feeling and durability of product bending, and directly influences the use feeling of users.
For the outward folding type flexible folding equipment, because the length difference is generated in the opening and closing process of the machine body, a set of fundamental solution is needed for solving the fundamental problem. The flexible outward folding type folding equipment in the current market is not good in handling the opening and closing length difference of the machine body, so that the screen is damaged due to the fact that the screen is folded, or the arching phenomenon occurs in the middle of the screen. This problem is urgently to be solved in terms of the life of the folding apparatus and the appearance beauty of the product.
In all the existing folding devices, the screen is damaged due to the increase of the folding times, or the screen is arched, and the like, so that the length difference generated by the device in the folding process needs to be designed, and the screen is not damaged or arched due to the influence of acting force such as pulling force and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, in order to solve the above problems in the prior art, the present invention provides a hinge mechanism with a length compensation function and a foldable display device, so as to achieve the purpose of compensating the length difference generated by the device during the folding process, so that the screen is not damaged or arched due to the influence of the acting force such as the pulling force.
The utility model discloses the technical scheme who adopts does: a hinge mechanism with a length compensation function comprises a hinge fixing piece and hinge frames symmetrically arranged on two sides of the hinge fixing piece, wherein the hinge frames on the two sides move symmetrically in an opening and closing mode relative to the hinge fixing piece;
the hinge support plate is slidably arranged on each hinge frame, the other end of the hinge support plate is hinged with a hinge connecting piece, and the hinge connecting piece is assembled on the hinge fixing piece through a sliding groove component and is linked with the hinge fixing piece through the hinge support plate to do arc motion relative to the hinge fixing piece.
Furthermore, the hinge frames on the two sides are driven to symmetrically open and close relative to the hinge fixing piece through the rotating modules, and the rotating modules are symmetrically arranged at the two ends of the hinge fixing piece so as to ensure the balance of synchronous linkage motion.
Furthermore, the hinge fixing pieces and the side faces of the hinge connecting pieces on the same side are all set to be arc-shaped faces, and the top points of the arc-shaped faces are located on the same arc line, so that a good supporting effect is provided for the flexible screen.
Further, the hinge fixing piece is designed to be a symmetrical body and comprises a fixing piece base and a fixing piece top cover, the fixing piece top cover is arranged on the fixing piece base, an inner cavity is formed between the fixing piece base and the fixing piece top cover, and the rotating module is arranged in the inner cavity, so that the hinge fixing piece has the advantages of being compact in structural design and reasonable in spatial arrangement.
Furthermore, the rotating module comprises a module shell arranged on the hinge fixing piece, a pair of gears in meshing transmission is arranged in the module shell, the two gears are the same in shape and size and are symmetrically arranged, the gears are linked with the hinge frame through gear connecting shafts to move, and synchronous linked motion of the hinge frame is realized by utilizing the characteristic of gear transmission.
The hinge assembly further comprises a rotating sleeve arranged in the module shell, the rotating sleeve is rotatably provided with the gear connecting shaft, one end of the gear connecting shaft is provided with the hinge frame, and the other end of the gear connecting shaft is provided with the gear, so that the torque transmitted by the gear can be transmitted to the hinge frame.
Furthermore, the gear connecting shaft is provided with an oblate shaft section, and the gear is sleeved on the shaft section; one end of the gear connecting shaft penetrates through the module shell, and a clamping ring is arranged at the end part of the gear connecting shaft so as to prevent the gear connecting shaft from axially moving in the moving process.
Furthermore, the hinge support plate is connected with a support sliding plate through a sliding bolt; the hinge frame is provided with a sliding groove matched with the supporting sliding plate, and the supporting sliding plate is arranged in the sliding groove in a sliding manner, so that the connection assembly between the hinge support plate and the hinge frame can be realized, and the linkage motion transmission between the hinge support plate and the hinge frame can also be realized.
Further, the spout subassembly is including locating a plurality of sliding guide on the hinge joint spare, be equipped with a plurality of sliding trays on the hinge mount, each sliding guide corresponds assembles to each sliding tray and makes arc motion along the notch of sliding tray to ensure that the hinge joint spare makes arc motion when linkage motion.
Further, the spout subassembly is including locating a plurality of guide rail axles on the hinged joint spare, be equipped with a plurality of butterfly guide rail grooves in the hinge mounting, each guide rail axle corresponds assembles to each butterfly guide rail groove and makes pitch arc motion along the notch in butterfly guide rail groove to ensure that the hinged joint spare does arc motion when the linkage motion, and the motion is reliable and stable.
The utility model discloses in still provide a folding display device, including the last shell and the lower shell that are symmetrical arrangement, through as above-mentioned the articulated mechanism drive that has the length compensation function go up the shell and its symmetrical central line of symmetry is to the symmetrical motion that opens and shuts down to improve this folding display device's motion reliability.
Furthermore, the screen support plate is arranged on the hinge fixing piece of the hinge mechanism, and two sides of the screen support plate are respectively connected to the corresponding hinge support plates.
The utility model has the advantages that:
1. the hinge mechanism with length compensation function and the folding display device provided by the utility model are based on that the folding device design of the folding type must ensure that the screen has the same length under the hinge mechanism state of 180 degrees and the hinge mechanism state of 90 degrees, and further ensures that the flexible screen is not influenced by tensile stress and torsion in the folding process, in the technology, the other end of the hinge support plate is hinged with the hinge connecting piece which is assembled on the hinge fixing piece through the chute component and is linked with the hinge fixing piece through the hinge support plate to do arc motion relative to the hinge fixing piece, therefore, the hinge connecting piece does the arc motion to ensure that the arc length formed between the hinge connecting piece and the hinge fixing piece is continuously changed in the opening and closing process of the hinge mechanism, thereby realizing the sliding length compensation of the whole hinge mechanism, and compensating the length difference generated by the folding motion in the folding process, so that the screen is not damaged or arched by the influence of the acting force such as pulling force.
Drawings
Fig. 1 is a schematic overall structure diagram of a hinge mechanism with a length compensation function provided by the present invention;
fig. 2 is a schematic structural diagram of the overall structure of the hinge mechanism with length compensation function provided by the present invention at another viewing angle;
fig. 3 is a partially enlarged schematic view of the internal structure of the hinge mechanism with length compensation function according to the present invention;
fig. 4 is a schematic view of the assembly between the hinge connecting member and the hinge fixing member in the hinge mechanism with length compensation function provided by the present invention;
fig. 5 is a schematic structural diagram of a hinge connector in a hinge mechanism with a length compensation function provided by the present invention;
fig. 6 is a schematic structural diagram of a hinge fixing member in a hinge mechanism with a length compensation function according to the present invention;
fig. 7 is an internal schematic view of a rotation module in a hinge mechanism with a length compensation function according to the present invention;
fig. 8 is a schematic view of the overall structure of the rotation module in the hinge mechanism with length compensation function provided by the present invention;
fig. 9 is a schematic cross-sectional view of the hinge mechanism with length compensation function provided by the present invention after being folded;
fig. 10 is a schematic cross-sectional view of the hinge mechanism with length compensation function provided by the utility model at a 90 ° state;
fig. 11 is a schematic cross-sectional view of the hinge mechanism with length compensation function provided by the utility model at a 180 ° state;
fig. 12 is a schematic view of the assembly between the hinge connecting member and the hinge fixing member in another embodiment of the hinge mechanism with length compensation according to the present invention;
FIG. 13 is a schematic view of a hinge mount of the hinge mechanism with length compensation provided by the present invention in another embodiment;
FIG. 14 is a schematic view of a hinge connection of the hinge mechanism with length compensation provided by the present invention in another embodiment;
fig. 15 is a schematic cross-sectional view of a hinge mechanism with length compensation provided by the present invention at a 180 ° state in another embodiment;
fig. 16 is a schematic partial structure diagram of a foldable display device provided by the present invention;
fig. 17 is a schematic view of the foldable display device provided by the present invention in a state of 180 °;
fig. 18 is a schematic view of a foldable display device provided by the present invention in a folded state;
the drawings are labeled as follows:
1-fastener top cover, 2-hinge connector, 3-hinge support plate, 4-hinge frame, 5-support sliding plate, 6-fastener base, 7-sliding groove, 8-sliding guide rail, 9-screw connector, 10-sliding groove, 11-rotating sleeve, 12-gear, 13-clamping ring, 14-gear connecting shaft, 15-module shell, 16-guide rail shaft, 17-butterfly-shaped guide rail groove, 18-hinge shell, 19-upper shell, 20-lower shell and 21-screen support plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the position or the positional relationship is based on the position or the positional relationship shown in the drawings, or the position or the positional relationship that the utility model is usually placed when using, or the position or the positional relationship that the skilled person conventionally understands, or the position or the positional relationship that the utility model is usually placed when using, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or suggest that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases for a person of ordinary skill in the art; the drawings in the embodiments are provided to clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Example 1
As shown in fig. 1 to 11, the hinge mechanism with a length compensation function is specifically provided in this embodiment, and the hinge mechanism is designed mainly for the problem of the length difference of the folding device before and after folding.
It includes the hinge mounting, establishes the hinge mounting as symmetrical body and regards its mean line as symmetrical central line, and the hinge mounting includes mounting base 6 and mounting top cap 1, mounting top cap 1 and mounting base 6 phase-match, and mounting top cap 1 adorns on mounting base 6 through a plurality of screws to form the inner chamber between mounting top cap 1 and mounting base 6, can arrange corresponding accessory through the inner chamber, for example: a rotating module, a chute assembly and the like. The folding device is characterized by further comprising hinge frames 4 symmetrically arranged on two sides of the symmetrical center line of the hinge fixing piece, wherein the hinge frames 4 on two sides move symmetrically in an opening and closing mode relative to the hinge fixing piece, and further the use requirements of the flexible folding device are met through the symmetrical opening and closing movement of the hinge frames 4.
In this embodiment, in order to realize that the hinge frame 4 can perform symmetrical opening and closing movements, two rotation modules are provided and are symmetrically arranged in the inner cavities at the two ends of the hinge fixing member, so that the hinge frames 4 at the two sides can be driven to perform symmetrical opening and closing movements relative to the hinge fixing member through the rotation modules. In order to further ensure the function realization in the operation process of the rotating module, the concrete design is as follows:
the hinge fixing piece comprises a module shell 15 arranged on the hinge fixing piece, wherein the module shell 15 is in an oblate shell shape, the module shell 15 is fixedly connected to a fixing piece base 6 through a screw, a pair of gears 12 in meshing transmission is arranged in the module shell 15, the two gears 12 are the same in shape and size, parameters of the two gears 12 are also the same, the two gears 12 are also symmetrically arranged on two sides of the symmetrical center line, and the gears 12 are linked with the hinge frame 4 through gear connecting shafts 14 to move. According to the transmission characteristics according to the gear 12, when the hinge bracket 4 of one side is rotated at a certain angle, the hinge bracket 4 of the other side is also rotated at the same angle.
Further, in order to ensure the reliability of the rotating module in the operation process, the rotating module further comprises a rotating sleeve 11 arranged in the module shell 15, the rotating sleeve 11 is matched with the inner cavity of the module shell 15 so as to embed the rotating sleeve 11 into the module shell 15, the gear connecting shafts 14 are rotatably arranged on the rotating sleeve 11 so as to realize that the two gear connecting shafts 14 are arranged in parallel and are symmetrically arranged relative to the symmetrical center line of the hinge fixing piece, the hinge frame 4 is arranged at one end of the gear connecting shaft 14, the hinge frame 4 is L-shaped, one arm of the hinge frame 4 is provided with an assembling hole matched with the gear connecting shaft 14, the gear 12 is arranged at the other end of the gear connecting shaft 14, and the rotating motion of the gear 12 and the gear connecting shaft 14 are in linkage motion. In this embodiment, the gear connecting shaft 14 is provided with an oblate shaft section, and the gear 12 is sleeved on the shaft section, so as to achieve a good anti-slip effect on the rotation of the gear 12, ensure that the gear 12 can be linked with the gear connecting shaft 14 to rotate, and further drive the hinge frame 4 to rotate through the gear connecting shaft 14; one end of the gear connecting shaft 14 penetrates through the module shell 15, the end part of the gear connecting shaft is provided with a clamping ring 13, and one side of the clamping ring 13 is tightly propped against the end surface of the module shell 15 so as to prevent the gear connecting shaft 14 from loosening in the movement process.
Through the structural design and optimization of the rotating module, the rotating module drives the two hinge frames 4 to synchronously move in a linkage manner relative to the symmetrical center line of the hinge fixing part, and finally, the two hinge frames 4 can move in an opening or closing linkage manner at the same angle and the same speed.
In order to realize the opening and closing process, the hinge mechanism has the length compensation function, and the design principle of the length compensation function is as follows: the length of the hinge mechanism in a 180-degree state, namely the plane length of the hinge mechanism in a 90-degree state and the arc surface length of a bending part, should be ensured, the length compensation mechanism mainly acts on the continuous change of the arc surface length in the folding process to ensure that the whole length of the hinge mechanism is not changed (which means the corresponding length of the installation area of the flexible screen), so as to ensure that the flexible screen is not influenced by tensile stress, torsion and the like in the folding and opening processes, and the service life of the flexible screen is prolonged. In the operation process, constitute the cambered surface of buckling jointly by hinge joint spare 2 and hinge mounting to realize that the length of this cambered surface changes in real time, its structural design is as follows:
the hinge support plate is characterized by further comprising hinge support plates 3 which are arranged on the hinge frames 4 in a sliding mode, the other ends of the hinge support plates 3 are hinged with hinge connecting pieces 2, and the hinge connecting pieces 2 are assembled on the hinge fixing pieces through sliding groove assemblies and are linked to move in an arc line relative to the hinge fixing pieces through the hinge support plates 3. In practical application, in order to ensure that a good supporting effect can be provided for a flexible screen, the side faces of the hinge fixing piece and the hinge connecting pieces 2 on the same side are all set to be arc-shaped faces, and the vertexes of the arc-shaped faces are located on the same arc line, namely, in the folding, opening and closing movement process, on one hand, the lengths of the arc-shaped faces formed by the hinge fixing piece and the hinge connecting pieces 2 are continuously changed; on the other hand, this arcwall face also can provide good support effect to flexible screen to prevent that the uneven phenomenon of atress from appearing in the flexible screen.
In order to realize the linkage motion between the hinge frame 4 and the hinge support plate 3, a support sliding plate 5 is connected on the hinge support plate 3 through a sliding bolt; the hinge frame 4 is provided with a sliding groove 7 matched with the supporting sliding plate 5, the supporting sliding plate 5 is nested in the sliding groove 7, at the moment, the supporting sliding plate 5 can freely slide in the sliding groove 7, so that the hinge support plate 3 can slide relative to the hinge frame 4, and when the hinge frame 4 rotates relative to the hinge fixing part, the hinge frame 4 is linked with the hinge support plate 3, and the hinge support plate 3 can also slide relative to the hinge frame 4. To further enable the arcuate movement of the hinge connector 2 relative to the hinge mount.
The spout subassembly is including locating a plurality of sliding guide 8 on the hinge joint spare 2 are equidistant between each sliding guide 8 and arrange be equipped with a plurality of sliding chutes 10 on the hinge mounting, the notch shape of sliding chute 10 with sliding guide 8's shape is the assorted, and each sliding guide 8 corresponds and assembles in each sliding chute 10 and sliding guide 8 can make pitch arc motion along the notch of sliding chute 10, and then, hinge joint spare 2 can make pitch arc motion under hinge joint spare 3's linkage effect. The motion principle is as follows:
when the hinge support plate 3 moves, the support sliding plate 5 is driven to freely slide in the sliding groove 7 in the hinge frame 4; the hinge support plate 3 is hinged with the hinge connecting piece 2 through a screw rod connecting piece 9, and a sliding guide rail 8 on the hinge connecting piece 2 is matched with a sliding chute 7 arranged on the hinge fixing piece;
when fold state moves to 90 from 180 in the hinge mechanism, the rotation module moves, correspondingly drives the hinge frame 4 to synchronously and symmetrically rotate, the support sliding plate 5 slides downwards in the sliding groove 7 of the hinge frame 4, then the hinge support plate 3 is driven to move, therefore, the hinge connecting piece 2 can carry out limiting movement through the sliding groove 7 of the hinge fixing piece, thereby realizing the sliding length compensation of the whole hinge mechanism, so that the whole length is not changed in the change of the hinge mechanism, and then the screen can not be under the action of tensile stress.
Example 2
In this embodiment, another schematic structure of the chute assembly is provided to achieve the same function and function, and the hinge connecting member 2 is driven to move in an arc when the hinge mechanism performs the opening and closing movement, and for this embodiment, as shown in fig. 12 to 15, the chute assembly is specifically designed as follows:
the chute assembly comprises a plurality of guide rail shafts 16 arranged on the hinge connecting piece 2, in the embodiment, two guide rail shafts 16 are arranged on one side of the hinge connecting piece 2, and a hollow gap is formed between each guide rail shaft 16 and the side edge of the hinge connecting piece 2; the hinge fixing piece is internally provided with a plurality of butterfly-shaped guide rail grooves 17, each guide rail shaft 16 is correspondingly assembled to each butterfly-shaped guide rail groove 17 and moves in an arc along the notch of the butterfly-shaped guide rail groove 17, in the embodiment, four butterfly-shaped guide rail grooves 17 are also arranged on the same side of the hinge fixing piece, every two butterfly-shaped guide rail grooves 17 are correspondingly matched with one guide rail shaft 16 on the side, preferably, a guide rail seat is arranged on the fixing piece base 6 of the hinge fixing piece, the guide rail seat is assembled on the fixing piece base 6, and a pair of butterfly-shaped guide rail grooves 17 are symmetrically arranged on the guide rail seat, so that the butterfly-shaped guide rail grooves 17 limit the movement of the. The matching mode of the butterfly-shaped guide rail groove 17 and the guide rail shaft 16 is adopted, and the arc guide rails between the hinge fixing piece and the hinge connecting piece 2 are matched with each other to slide in the moving process, so that the hinge fixing piece and the hinge connecting piece are ensured not to fall off, and the whole hinge mechanism can stably move.
By adopting the mode provided in the embodiment, because the guide rail shaft 16 is sleeved inside the butterfly-shaped guide rail groove 17, and the guide rail shaft 16 can do arc motion along the notch path of the butterfly-shaped guide rail groove 17, the reliability is higher, and the condition that the hinge connecting piece 2 and the hinge fixing piece fall off from each other cannot occur.
The butterfly-shaped guide rail groove 17 is formed in the hinge fixing piece, a hole, close to the central portion, of the hinge connecting piece 2 is a threaded hole, the guide rail shaft 16 can be installed and fixed on the hinge fixing piece, the guide rail shaft 16 is connected with the hinge fixing piece through the butterfly-shaped guide rail groove 17, when the hinge mechanism moves, the rotating module drives the whole hinge mechanism to rotate, and the guide rail shaft 16 moves in the butterfly-shaped guide rail groove 17 of the hinge fixing piece, so that length compensation is achieved, and the specific principle can be seen in embodiment 1.
Example 3
As shown in fig. 16 to 18, the present invention further provides a foldable display device, which comprises an upper housing 19 and a lower housing 20 arranged symmetrically, wherein the upper housing 19 and the lower housing 20 are driven to perform a symmetrical opening and closing motion relative to a symmetrical center line thereof by a hinge mechanism with a length compensation function as described in any one of embodiment 1 or embodiment 2. The specific connection structure is as follows:
including hinge mount with place the inside rotation module of this hinge mount in, the both ends of hinge mount all are equipped with the rotation module, every rotation module goes up the symmetry and is provided with hinge frame 4 to there are two parallel hinge frames 4 with one side at hinge mount, simultaneously, still be equipped with hinged joint spare 2 through spout subassembly on hinge mount, be connected with hinge support plate 3 through hinged joint spare 2 is with movable assembly between hinge support plate 3 and the hinge frame 4. The two hinge brackets 4 positioned on the same side of the hinge fixing part are provided with a hinge outer shell 18, and the hinge outer shell 18 has the functions of dust prevention and water prevention. The gear 12 of the folding module is prevented from being abraded and increased due to dust, the service life of the device is shortened, and the upper shell 19 or the lower shell 20 is arranged on the two hinge supporting plates 3 on the same side of the hinge fixing part, so that the folding display device is formed.
The motion principle is as follows: when the hinge frame 4 on any side rotates, the hinge frame 4 on the other side also synchronously rotates, and meanwhile, the torque generated in the rotating module is transmitted through the hinge connecting piece 2 and the hinge supporting plate 3 in sequence, the hinge supporting plate 3 is connected with the hinge frame 4, and the hinge frame 4 is connected with the upper shell 19 or the lower shell 20, so that the upper shell 20 and the lower shell 20 can have torque when being opened, and the accurate action track layout is formed by linkage of the gears 12 to realize the error-free action at the same angle, and the upper shell 19 and the lower shell 20 on the two sides of the folding display device are limited to synchronously linkage movement;
fold condition when the hinge mechanism from 180 when moving to 90, it moves to rotate the module, correspondingly drive hinge frame 4 also synchronous symmetry and rotate, support slide 5 and carry out the lapse in the spout 7 of hinge frame 4, then drive hinge backup pad 3 motion, thereby, hinge connection spare 2 can carry out spacing motion through the spout 7 of hinge mounting, thereby realize the sliding length compensation of whole hinge mechanism, so that whole length does not change in the change of hinge mechanism, then the screen can not receive the effect of tensile stress, and then the phenomenon of damage or hunch-up can not appear.
The screen support plate 21 is arranged on the hinge fixing piece of the hinge mechanism and assembled on the fixing piece base 6 through screws, and two sides of the screen support plate 21 are respectively connected to the hinge support plates 3 symmetrically distributed on two sides of the hinge fixing piece. In practical applications, the screen support plate 21 is made of a stainless steel sheet or the like, which is not easily deformed and has high plasticity. The main effects are as follows: the screen protection is carried out on the bending area, and the screen support plate 21 is fixed on the hinge fixing piece of the hinge mechanism and the material is not easy to deform, so that the length of the whole mechanism is not changed, and the screen is not subjected to tensile stress. Meanwhile, the screen support plate 21 also has a function of verifying whether the hinge mechanism having the length compensation function completes its effect.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (12)
1. A hinge mechanism with a length compensation function comprises a hinge fixing piece and is characterized by further comprising hinge frames symmetrically arranged on two sides of the hinge fixing piece, wherein the hinge frames on the two sides are in symmetrical opening and closing movement relative to the hinge fixing piece;
the hinge support plate is slidably arranged on each hinge frame, the other end of the hinge support plate is hinged with a hinge connecting piece, and the hinge connecting piece is assembled on the hinge fixing piece through a sliding groove component and is linked with the hinge fixing piece through the hinge support plate to do arc motion relative to the hinge fixing piece.
2. A hinge mechanism with length compensation function according to claim 1, wherein the hinge frames at two sides are driven by rotation modules to perform symmetrical opening and closing motion relative to the hinge fixing piece, and the rotation modules are symmetrically arranged at two ends of the hinge fixing piece.
3. A hinge mechanism with a length compensation function according to claim 1, wherein the hinge fixing member and the same side face of each hinge connecting member are provided with arc-shaped surfaces, and the vertexes of the arc-shaped surfaces are located on the same arc line.
4. A hinge mechanism with length compensation according to claim 2, wherein the hinge fixing member is a symmetrical body, and the hinge fixing member comprises a fixing member base and a fixing member top cover, the fixing member top cover is mounted on the fixing member base, and a cavity is formed between the fixing member base and the fixing member top cover, and the rotation module is mounted in the cavity.
5. A hinge mechanism with a length compensation function according to claim 2 or 4, wherein the rotation module comprises a module shell mounted on the hinge fixing piece, a pair of meshing transmission gears are mounted in the module shell, the gears are identical in shape and size and are symmetrically arranged, and the gears are linked with the hinge frame through gear connecting shafts to move.
6. A hinge mechanism with length compensation function according to claim 5, further comprising a rotating sleeve mounted in the module housing, wherein the rotating sleeve is rotatably provided with the gear connecting shaft, one end of the gear connecting shaft is provided with the hinge frame, and the other end is provided with the gear.
7. A hinge mechanism with length compensation function according to claim 5, wherein the gear connecting shaft is provided with an oblate shaft section, and the gear is sleeved on the shaft section; one end of the gear connecting shaft penetrates through the module shell, and a clamping ring is arranged at the end part of the gear connecting shaft.
8. A hinge mechanism with a length compensation function according to claim 1, wherein a support slide is attached to the hinge support plate via a slide pin; the hinge frame is provided with a sliding chute matched with the supporting sliding plate, and the supporting sliding plate is arranged in the sliding chute in a sliding manner.
9. A hinge mechanism with a length compensation function according to claim 1, wherein the sliding groove assembly comprises a plurality of sliding rails disposed on the hinge connecting member, and the hinge fixing member is provided with a plurality of sliding grooves, and each sliding rail is correspondingly assembled to each sliding groove and moves in an arc along the groove opening of the sliding groove.
10. A hinge mechanism with a length compensation function according to claim 1, wherein the sliding groove assembly includes a plurality of guide rail shafts disposed on the hinge connection member, and a plurality of butterfly-shaped guide rail grooves are disposed in the hinge fixing member, and each guide rail shaft is correspondingly fitted to each butterfly-shaped guide rail groove and moves in an arc along a notch of the butterfly-shaped guide rail groove.
11. A folding display device comprising an upper housing and a lower housing arranged symmetrically, characterized in that the upper housing and the lower housing are driven in a symmetrical opening and closing movement with respect to their centre line of symmetry by a hinge mechanism with length compensation according to any of claims 1-10.
12. The foldable display apparatus of claim 11, further comprising a screen support plate, wherein the screen support plate is mounted on the hinge fixing member of the hinge mechanism, and both sides of the screen support plate are respectively connected to the hinge support plates corresponding thereto.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021329227.8U CN212643302U (en) | 2020-07-08 | 2020-07-08 | Hinge mechanism with length compensation function and folding display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021329227.8U CN212643302U (en) | 2020-07-08 | 2020-07-08 | Hinge mechanism with length compensation function and folding display device |
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| CN212643302U true CN212643302U (en) | 2021-03-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115003072A (en) * | 2022-05-23 | 2022-09-02 | 中国船舶集团有限公司第七二三研究所 | High-bearing self-limiting hinge device |
-
2020
- 2020-07-08 CN CN202021329227.8U patent/CN212643302U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115003072A (en) * | 2022-05-23 | 2022-09-02 | 中国船舶集团有限公司第七二三研究所 | High-bearing self-limiting hinge device |
| CN115003072B (en) * | 2022-05-23 | 2023-05-26 | 中国船舶集团有限公司第七二三研究所 | High-bearing self-limiting hinge device |
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Effective date of registration: 20211111 Address after: No. 389 Wende West Street, Chengdu modern industrial port new economic Industrial Park, Pidu District, Chengdu, Sichuan 610000 Patentee after: Chengdu tuomi Electronic Equipment Manufacturing Co., Ltd Address before: 610000 building 7, phase II, Chuangke Park, Deyuan town (Jingrong town), Pidu District, Chengdu, Sichuan Patentee before: Tuomi (Chengdu) Applied Technology Research Institute Co., Ltd |
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