CN112896733A

CN112896733A - Folding hinge mechanism with good linkage and support

Info

Publication number: CN112896733A
Application number: CN202110073845.3A
Authority: CN
Inventors: 李康星; 赵永泰; 邓敏; 王茜
Original assignee: Tuomi Chengdu Applied Technology Research Institute Co ltd
Current assignee: Tuomi Chengdu Applied Technology Research Institute Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-06-04

Abstract

The invention discloses a folding hinge mechanism with good linkage and support, belonging to the technical field of flexible screen equipment, the folding hinge mechanism comprises: a hinge housing; the hinge comprises shell components symmetrically arranged on two sides of a hinge shell, wherein each shell component is connected with a connecting piece respectively, the connecting pieces are flush with the supporting plane of the shell components, the connecting pieces are hinged to the hinge shell, and each connecting piece is movably connected with a rotating arm; the rotating module is arranged in the hinge shell and used for linking the rotating arms to synchronously rotate so as to achieve the purpose of good linkage and support of the flexible screen in the folding equipment in motion.

Description

Folding hinge mechanism with good linkage and support

Technical Field

The invention belongs to the technical field of flexible screen equipment, and particularly relates to a folding hinge mechanism with good linkage and support.

Background

Aiming at the field of folding equipment matched with a flexible screen in the current market, the linkage and the support of the folding equipment are greatly required, and the folding rotary hinge mechanism can form extrusion force on the flexible screen in the movement process of the whole folding equipment, so that the service life of the flexible screen is reduced.

Disclosure of Invention

In view of the above, in order to solve the above problems in the prior art, the present invention provides a folding hinge mechanism with good linkage and support properties to achieve the purpose of good linkage and support properties for the flexible screen in the folding device during the movement.

The technical scheme adopted by the invention is as follows: a folding hinge mechanism having good interlocking and supporting properties, the folding hinge mechanism comprising:

a hinge housing;

the hinge comprises shell components symmetrically arranged on two sides of a hinge shell, wherein each shell component is connected with a connecting piece respectively, the connecting pieces are flush with the supporting plane of the shell components, the connecting pieces are hinged to the hinge shell, and each connecting piece is movably connected with a rotating arm;

and the rotating module is arranged in the hinge shell and used for linking each rotating arm to synchronously rotate.

Further, the housing assembly includes:

the shell main frame is fixedly connected with the connecting piece;

and the surface of the supporting plate is a supporting plane and is flush with the plane of the connecting piece.

Furthermore, a supporting seat is arranged in the hinge shell, a hinge rotating groove is arranged on the supporting seat, a fixed shaft matched with the hinge rotating groove is arranged in the hinge rotating groove, and a rotating guide cavity is formed between the fixed shaft and the hinge rotating groove; the end part of the connecting piece is provided with a rotating head matched with the rotating guide cavity, and one side of the connecting piece is abutted against the side edge of the hinge shell when the connecting piece rotates, so that the over-bending prevention effect is achieved.

Further, the hinge rotating groove and the rotating head are both designed to be arc-shaped structures.

Furthermore, a connecting plate is arranged on the connecting piece, and a strip-shaped guide hole is formed in the connecting plate; one end of the rotating arm is provided with a connecting shaft which is movably sleeved in the guide hole.

Furthermore, the end of the rotating arm is provided with a connector, and the connecting shaft is sleeved in the connector and is fixedly locked through a bolt.

Further, the rotation module includes:

a shaft support disposed within the hinge housing;

the hinge comprises main gear shafts respectively connected with rotating arms, each main gear shaft is rotatably sleeved in a shaft supporting piece, the main gear shafts are synchronously transmitted through gear pairs, the rotating arms rotate under the driving of the main gear shafts, and one side of each rotating arm abuts against the side edge of the hinge shell to achieve the effect of preventing overbending.

Further, the gear pair includes:

the main gears are respectively sleeved on the main gear shaft and synchronously rotate with the main gear shaft;

the auxiliary gear shaft is arranged on the shaft supporting part, an auxiliary gear is sleeved on the auxiliary gear shaft, and the main gear and the auxiliary gear are in meshed transmission with each other.

Further, the rotation module further includes:

the cam seat is sleeved with each main gear shaft, and the cam seat and the main gear shaft rotate asynchronously;

the cam is arranged on the main gear shaft and synchronously rotates with the main gear shaft, each cam is respectively meshed with the cam seat, and the cam seat is provided with an elastic piece for providing thrust to the cam seat.

Furthermore, the end of the rotating arm is sleeved on the main gear shaft and is integrally formed with a cam, and the cam and the main gear shaft synchronously rotate.

Further, the rotation module further includes:

the elastic piece is a spring which is sleeved on the main gear shaft, and two ends of the spring respectively abut against the snap spring fixing seat and the cam seat.

The invention has the beneficial effects that:

1. the folding hinge mechanism with good linkage and support performance mainly comprises a hinge shell, a shell component, a rotating module and the like, can meet the use habit of a user and can be folded up and down, and in the use process, the folding hinge mechanism can play a good support role on a flexible screen by matching with a support plate through the design optimization of a connecting piece; meanwhile, under the action of the rotating module, the stop at any angle can be realized, so that the use feeling of a user is improved; synchronous linkage rotation can be realized to prevent the screen from being damaged and improve the whole service life.

Drawings

FIG. 1 is a schematic view of the overall structure of the folding hinge mechanism with good linkage and support provided by the present invention when deployed;

FIG. 2 is a schematic view of the overall structure of the folding hinge mechanism with good interlocking and supporting properties provided by the present invention when closed;

FIG. 3 is a schematic view of the internal structure of FIG. 1;

FIG. 4 is a schematic diagram of the structure of the rotating part of the folding hinge mechanism with good linkage and support provided by the present invention;

FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;

FIG. 6 is a schematic view of the assembly structure of the rotating module in the folding hinge mechanism with good linkage and support provided by the present invention;

FIG. 7 is a schematic view of the structure of FIG. 6 from another perspective;

FIG. 8 is a schematic illustration of the disassembled structure of FIG. 6;

FIG. 9 is a schematic view of the disassembled structure of the rotating module in the folding hinge mechanism with good linkage and support provided by the present invention;

FIG. 10 is a schematic view of the structure of the link in the folding hinge mechanism with good linkage and support provided by the present invention;

FIG. 11 is a schematic structural view of the swivel arm in the folding hinge mechanism with good linkage and support provided by the present invention;

the drawings are labeled as follows:

1-housing main frame, 2-connecting piece, 3-connecting head, 4-supporting plate, 5-hinge housing, 6-rotating arm, 7-shaft supporting piece, 8-connecting plate, 9-connecting shaft, 10-clamp spring fixing seat, 11-fixing shaft, 12-supporting seat, 13-spring, 14-cam, 15-cam seat, 16-main gear shaft, 17-main gear, 18-auxiliary gear and 19-rotating head.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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 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 figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that 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 orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, or the orientation or the positional relationship which is usually understood by those skilled in the art, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, 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 the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases by those skilled in the art; the drawings in the embodiments are used for clearly and completely describing the technical scheme in the embodiments of the invention, and obviously, the described embodiments are a part of the embodiments of the invention, but not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Example 1

The folding hinge mechanism with good linkage and support is provided in the embodiment, and the purpose is that by using the folding hinge mechanism, extrusion force cannot be formed on the flexible screen in the movement process of the whole machine, so that the service life of the flexible screen is prolonged. This folding hinge mechanism mainly includes: hinge shell 5, shell subassembly, several parts such as rotation module are constituteed, as shown in fig. 1, fig. 2, and the concrete design is as follows:

hinge shell

As shown in fig. 3, 4 and 5, the hinge housing 5 carries the main body of the rotation module for the folding hinge mechanism, and the hinge housing 5 serves as the rotational symmetry center of the two side housing components. In the present embodiment, the hinge housing 5 is provided as a shell structure with an open end, and the hinge housing 5 itself is a symmetric structure, the length of the hinge housing 5 should be adapted to the housing component, and in order to ensure that the appearance of the folding device is beautiful when the folding device is folded, the appearance structure of the hinge housing 5 should be rounded properly.

The rotating modules are respectively arranged in the two ends of the hinge shell 5, and the rotating modules are used as main components for linking the shell components on the two sides to synchronously rotate. The hinge device plays an important role in supporting the screen, and if the poor supporting performance of the screen pasting part occurs, the screen is damaged in the folding process, so that the requirement on the supporting performance of the screen is high. For satisfying the required support nature to flexible screen, set up a plurality of screw holes on hinge shell 5, its purpose is fixed in order to rotate the module, when rotating module and hinge shell 5 and fixing the device, makes the center of rotation of whole device obtain fixing, thereby makes flexible screen can not cause the damage because of receiving unnecessary pulling force.

In order to ensure that the folding hinge mechanism can move stably in the whole movement and has good support performance, the assembly mode between the hinge shell 5 and the connecting piece 2 is as follows: a supporting seat 12 is arranged in the hinge shell 5, a hinge rotating groove is formed in the supporting seat 12, a fixing shaft 11 matched with the hinge rotating groove is arranged in the hinge rotating groove, the fixing shaft 11 can be arranged at the opening end of the hinge rotating groove in a welding or clamping assembly mode, a rotating guide cavity is formed between the fixing shaft 11 and the hinge rotating groove, and the rotating guide cavity is of an arc-shaped structure so as to ensure that the connecting piece 2 can stably rotate relative to the hinge shell 5. The motion of connecting piece 2 uses fixed axle 11 as rotation center, and the arc motion has the steady characteristic that just can not block the shell to the existence of fixed axle 11 not only makes connecting piece 2 can the steady motion but also can make whole folding hinge mechanism not take place the overbending condition, has and prevents the overbending function, can prevent that flexible screen is impaired and improve whole life.

A rotating head 19 matched with the rotating guide cavity is arranged at the end part of the connecting piece 2, the rotating head 19 is assembled inside the rotating guide cavity, and the rotating head 19 can freely rotate in the rotating guide cavity. In practical application, the hinge rotating groove and the rotating head 19 are both designed to be arc-shaped structures, so that the rotating function of the connecting piece 2 relative to the hinge shell 5 is realized, and meanwhile, good stability can be ensured in the rotating process.

Because the connecting plate 8 is the design of flat board, when connecting piece 2 is when rotating, when rotating to folding hinge mechanism completely expansion state, one side of connecting plate 8 supports and leans on the side of hinge shell 5 to play supplementary effect of preventing the overbending, prevent that the too big production of flexible screen turned angle from damaging.

② casing component

As shown in fig. 1 and 3, the housing assembly serves as a main carrying component of the flexible screen, and comprises: the shell main frame 1 is fixedly connected with the connecting piece 2 through a plurality of bolts; the supporting plate 4 is arranged on the shell main frame 1, the surface of the supporting plate 4 is a supporting plane, the supporting plane is flush with the plane where the connecting piece 2 is located, and the surface where the supporting plate 4 and the connecting piece 2 are located bears the flexible screen together.

In this embodiment, as shown in fig. 8, 10 and 11, the two housing assemblies are symmetrically disposed on two sides of the hinge housing 5, each housing assembly is connected with the connecting element 2, and the connecting element 2 is flush with a supporting plane of the housing assembly, the connecting element 2 is hinged to the hinge housing 5, and each connecting element 2 is movably connected with the rotating arm 6, and the rotating arm 6 is driven by the rotating module to realize that the connecting elements 2 on two sides of the hinge housing 5 can rotate synchronously.

The mounting between the link 2 and the swivel arm 6 is as follows: a connecting plate 8 is arranged on the connecting piece 2, and a strip-shaped guide hole is formed in the connecting plate 8; one end of the rotating arm 6 is provided with a connecting shaft 9, the connecting shaft 9 is movably sleeved in the guide hole, and the connecting shaft 9 and the guide hole can do relative rotation movement and relative displacement movement.

For the installation of realization to connecting axle 9 the tip of rotor arm 6 is equipped with connector 3, has seted up the through-hole on the connector 3, and connecting axle 9 passes the through-hole of guiding hole and connector 3 in proper order to it is spacing through the jump ring at the tip of connecting axle 9, simultaneously, fix the locking through the bolt of threaded connection on connector 3 to connecting axle 9, make and not produce between connecting axle 9 and the rotor arm 6 and rock, and then can not produce the abnormal sound. In this embodiment, the side of the swivel arm 6 should be flush with the surface of the attachment 2 when the folding hinge mechanism is in the fully unfolded state.

③ rotating module group

In order to carry the flexible display screen and enable the screen not to be subjected to tensile stress in the folding process, the hinge mechanism needs to realize synchronous motion in the rotating process, and the synchronous motion is realized through the rotating module.

As shown in fig. 4, the rotation module has two ends respectively disposed in the hinge housing 5, and the rotation module is used to link the rotation arms 6 to rotate synchronously, when the housing assemblies on the two sides move, the connecting member 2 is used to link the rotation arms 6 to move, and the rotation arms 6 are used to link synchronously under the action of the rotation module. Because the left and the right of the whole folding hinge mechanism are respectively provided with one rotating module, the whole folding hinge mechanism can stably operate and has good linkage.

As shown in fig. 6-9, the design for the rotating module is as follows: the rotation module includes: the hinge comprises a shaft supporting piece 7 and main gear shafts 16 respectively connected with the rotating arms 6, wherein the shaft supporting piece 7 is arranged in the hinge shell 5, each main gear shaft 16 is rotatably sleeved in the shaft supporting piece 7, and the main gear shafts 16 are synchronously transmitted through gear pairs. The gear pair comprises two main gears 17 and two auxiliary gears 18, the two main gears 17 are respectively sleeved on the main gear shaft 16, and the two main gears 17 respectively rotate synchronously with the main gear shaft 16 on which the two main gears 17 are arranged; two pinion 18 shafts are arranged on the shaft support member 7, the pinion 18 is movably sleeved on the two pinion 18 shafts, and the main gear 17 and the pinion 18 are mutually meshed for transmission so as to finally realize the synchronous linkage rotation of the two main gear shafts 16. In the above, 4 gears (2

main gears

17 and 2 pinions 18) with the same basic parameters are adopted, and the high-precision synchronous rotation is ensured by utilizing the characteristics of high gear transmission efficiency and accurate transmission.

In the practical application process, the rotating arm 6 rotates under the linkage action of the main gear shaft 16, and when the shell components on the two sides are in the fully unfolded state, the side face of one side of the rotating arm 6 abuts against the side edge of the hinge shell 5, so that the effect of assisting in preventing the over-bending is achieved, and the damage of the flexible screen caused by the over-bending is prevented.

The linkage working principle of the folding hinge mechanism is as follows: carry out swing joint with rotor arm 6 and connecting piece 2 through connecting axle 9, when the connecting piece 2 of one end carries out rotary motion, drive rotor arm 6 through connecting axle 9 and rotate, and then make the gear in the rotation module rotate, because the linkage effect of gear, so drive the connecting piece 2 of the other end and move, connecting piece 2 carries out fixed connection through the screw with the shell subassembly, consequently realizes the simultaneous movement of whole mechanism.

When the screen is completely unfolded to 180 degrees, the plane of the connecting piece 2, the plane of the supporting seat 12 and the plane of the shaft support 7 need to be kept on the same plane, so that the screen is well supported; meanwhile, in the movement process of the mechanism, the bending track of the flexible screen is limited in the movement process through the connecting piece 2, so that the screen is protected.

In order to provide good support for the equipment, the folding hinge mechanism needs to be designed in such a way that all exposed parts and the support plate 4 need to maintain good flatness, and therefore, high requirements on machining precision are required.

Example 2

In order to further improve the user experience of the folding hinge mechanism in the using process and design the function of stopping at any angle, a further improvement is made on the basis of the embodiment 1, as shown in fig. 8 and 9, as follows:

the rotating module also comprises a cam seat 15 and a cam 14, and the function of stopping at any angle is realized in a manner that the cam seat 15 is in snap fit with the cam 14. The cam 14 is integrally formed at the end of the rotating arm 6, the end of the rotating arm 6 is sleeved on the main gear shaft 16, at this time, the cam 14 is also sleeved on the main gear shaft 16, the cam 14 and the main gear shaft 16 synchronously rotate, and the main gear shaft 16 and the cam 14 are assembled by adopting an interference fit method to ensure that the two connecting plates do not rotate relatively, so that the two connecting plates 8 synchronously move. The cam 14 and the rotating arm 6 are designed into a whole, so that the whole device can realize better linkage, and the best effect can be achieved under the condition of the simplest structure; in addition, the cam 14 is designed as a one-piece structure, and provides reliable guarantee for the folding angle.

The cam seat 15 is an integral piece, each main gear shaft 16 is sleeved on the cam seat 15, and the cam seat 15 and the main gear shaft 16 rotate asynchronously, i.e. the main gear shaft 16 and the cam seat 15 can rotate relatively; the cams 14 are respectively engaged with the cam seat 15, the cam seat 15 is provided with an elastic member for providing thrust to the cam seat 15, the elastic member is a spring 13, and under the action of the elastic force provided by the spring 13, the cams 14 respectively abut against the cam seat 15 and are engaged with each other.

In order to realize the installation and the limitation of the spring 13, a clamp spring fixing seat 10 is arranged in the hinge shell 5, the clamp spring fixing seat 10 is connected to the hinge shell 5 through a bolt, the spring 13 is sleeved on the main gear shaft 16, and two ends of the spring 13 respectively abut against the clamp spring fixing seat 10 and the cam seat 15 so as to provide thrust for the cam seat 15 through the spring 13.

A cam 14, a cam seat 15 and a spring 13 are arranged on the main gear shaft 16, the cam 14 is matched with the cam seat 15, the whole device can realize the stop at any angle of 30-150 degrees under the engagement of the cam 14 and the action of the spring 13, and the semi-automatic state is realized at 0-30 degrees and 150-180 degrees.

The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.

Claims

1. A folding hinge mechanism having excellent interlocking and supporting properties, characterized by comprising:

a hinge housing;

2. A folding hinge mechanism with good linkage and support according to claim 1, characterized in that the housing assembly comprises:

the shell main frame is fixedly connected with the connecting piece;

3. The folding hinge mechanism with good linkage and support according to claim 1, characterized in that a support seat is arranged in the hinge housing, a hinge rotating groove is arranged on the support seat, the hinge rotating groove is provided with a fixed shaft matched with the hinge rotating groove, and a rotating guide cavity is formed between the fixed shaft and the hinge rotating groove; the end part of the connecting piece is provided with a rotating head matched with the rotating guide cavity.

4. The folding hinge mechanism with good linkage and support according to claim 1, characterized in that the connecting piece is provided with a connecting plate and the connecting plate is provided with a strip-shaped guiding hole; one end of the rotating arm is provided with a connecting shaft which is movably sleeved in the guide hole.

5. The folding hinge mechanism with good linkage and support according to claim 4, characterized in that the end of the rotating arm is provided with a connector, and the connecting shaft is sleeved in the connector and is fixed and locked by a bolt.

6. A folding hinge mechanism with good linkage and support according to claim 1, characterised in that the rotation module comprises:

a shaft support disposed within the hinge housing;

the main gear shafts are respectively connected with the rotating arms, each main gear shaft is rotatably sleeved in the shaft supporting piece, and the main gear shafts are synchronously transmitted through gear pairs.

7. A folding hinge mechanism with good linkage and support according to claim 6, characterised in that the gear pair comprises:

8. A folding hinge mechanism with good linkage and support according to claim 6, characterised in that the rotation module further comprises:

9. A folding hinge mechanism with improved linkage and support as claimed in claim 8, wherein the end of the rotating arm is fitted over the main gear shaft and has a cam integrally formed therewith, the cam and the main gear shaft rotating synchronously.

10. A folding hinge mechanism with good linkage and support according to claim 8, characterised in that the rotation module further comprises: