CN106917814B

CN106917814B - Rotating shaft and electronic equipment

Info

Publication number: CN106917814B
Application number: CN201510990144.0A
Authority: CN
Inventors: 范小利; 马雷; 左常龙
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2015-12-24
Filing date: 2015-12-24
Publication date: 2024-06-18
Anticipated expiration: 2035-12-24
Also published as: CN106917814A

Abstract

The invention discloses a rotating shaft and electronic equipment. Wherein, the pivot includes: the gear rotating shafts are meshed together through gear teeth on the gear rotating shafts, and after an external force is born, each of the gear rotating shafts is meshed and driven through the change of the meshing position, so that the rotating shafts are bent to a state under a preset condition; and the connecting parts are used for connecting the gear-shaped rotating shafts.

Description

Rotating shaft and electronic equipment

Technical Field

The present disclosure relates to electronic devices, and particularly to a rotating shaft for an electronic device.

Background

Along with the development of technology, the concept of a flexible screen device has been proposed in the field of electronic devices, that is, the electronic device has a flexible screen, and the flexible screen can improve the hand feeling of a user, is lighter and thinner in volume and has low power consumption, so that the cruising ability of the electronic device is improved. Meanwhile, based on the characteristics of being capable of being completely and good in flexibility, the durability of the screen is greatly higher than that of a traditional screen, and the probability of accidental damage of equipment is reduced.

Because the flexibility of the flexible screen is very good, the display area of the electronic equipment can be greatly increased, and the flexible screen is convenient for users to use. However, the increase in the area of the display area increases the volume of the device, so that it is necessary to design a suitable rotation shaft so that the flexible screen device can be folded to reduce the volume of the device and facilitate carrying.

However, no design solution for the rotating shaft of the flexible screen device exists at present.

Disclosure of Invention

In order to solve the existing technical problems, the embodiment of the invention provides a rotating shaft and electronic equipment.

In order to achieve the above object, the technical solution of the embodiment of the present invention is as follows:

The embodiment of the invention provides a rotating shaft, which comprises the following components:

The gear rotating shafts are meshed together through gear teeth on the gear rotating shafts, and after an external force is born, each of the gear rotating shafts is meshed and driven through the change of the meshing position, so that the rotating shafts are bent to a state under a preset condition;

And the connecting parts are used for connecting the gear-shaped rotating shafts.

In the above scheme, the plurality of connecting members include a first connecting member disposed at an axial center position of the gear shaft, and configured to generate a friction force on a contact surface with the gear shaft during bending of the shaft, so that the shaft can be maintained in any state during bending.

In the above scheme, the rotating shafts comprise bendable portions, and each gear rotating shaft in the bendable portions is a first structural gear rotating shaft; the first structural gear rotating shaft is a gear rotating shaft with a double-wheel structure; the rotating shaft comprises a first gear rotating shaft chain and a second gear rotating shaft chain;

in the first gear rotating shaft chain, adjacent first structure gear rotating shafts are meshed together through gear teeth;

in the second gear rotating shaft chain, adjacent first structure gear rotating shafts are meshed together through gear teeth;

A first structure gear rotating shaft in the first gear rotating shaft chain and a first structure gear rotating shaft in the second gear rotating shaft chain are connected by adopting the first connecting component in an axis staggered mode;

In the bending process of the rotating shafts, the angles between the adjacent first structure gear rotating shafts are changed through the change of meshing positions between the adjacent first structure gear rotating shafts and the interaction between the first gear rotating shaft chain and the second gear rotating shaft chain.

In the above scheme, the rotating shaft further comprises a transmission part, and the plurality of connecting components further comprise a second connecting component; each gear rotating shaft in the transmission part is a second structure gear rotating shaft; the second structure gear rotating shaft is a gear rotating shaft with a single-wheel structure;

In the transmission part, adjacent second structure gear rotating shafts are meshed together through gear teeth; the first connecting part is arranged at the axle center position of each second structure gear rotating shaft; each first connecting part arranged on the second structure gear rotating shaft is fixed on the second connecting part;

One end of the transmission part is meshed with one end of the bendable part through gear teeth; the other end part of the transmission part is meshed with one end part of the other bendable part through gear teeth; the second structure gear rotating shaft positioned at the end part of the transmission part is connected with the first structure gear rotating shaft positioned at the end part of the bendable part in an axial center mode by adopting the first connecting part;

In the bending process of the rotating shafts, the angle between the adjacent second structure gear shafts in the transmission part is not changed through the change of the meshing positions between the adjacent second structure gear shafts.

In the above scheme, the number of the second structural gear rotating shafts in the transmission part is an odd number; in the bending process of the rotating shaft, the two ends of the transmission part have the same rotating direction.

In the above scheme, the number of the second structural gear rotating shafts in the transmission part is an even number; in the bending process of the rotating shaft, two ends of the transmission part have opposite rotating directions.

The embodiment of the invention also provides electronic equipment, which comprises:

A housing;

a flexible screen;

A rotating shaft;

the flexible screen is fixed in the shell, and the rotating shaft is fixed with the shell through a rigid part of the shell;

The rotating shaft comprises:

One end of the transmission part is meshed with one end of the bendable part through gear teeth; the other end part of the transmission part is meshed with one end part of the other bendable part through gear teeth; the second structure gear rotating shaft positioned at the end part of the transmission part is connected with the first structure gear rotating shaft positioned at the end part of the bendable part through an axle center by adopting the first connecting part;

In the above scheme, the rotating shaft comprises a bending part and a transmission part which are arranged at intervals, the outer ends of the bending parts at the two ends of the rotating shaft are respectively connected with the supporting parts, and in the bending state of the rotating shaft, the supporting parts bend towards opposite directions, so that the two supporting parts are parallel to at least one transmission part;

Or the rotating shaft comprises a bending part, a transmission part and supporting parts for spacing the bending parts, wherein the outer ends of the bending parts at two ends of the rotating shaft are respectively connected with the supporting parts, and in the bending state of the rotating shaft, the two supporting parts connected with the outer ends of the bending parts are bent in opposite directions, so that the three supporting parts are parallel to at least one transmission part.

In the above scheme, the pivot includes the bending part and the drive portion that the interval set up, and the supporting part is connected respectively to the outer end of the bending part at pivot both ends, and under the pivot bending state, supporting part is crooked to the same direction for two supporting parts are parallel with at least one drive portion.

In the above scheme, the electronic equipment is provided with at least one group of rotating shafts.

In the above scheme, the neutral layer of the rotating shaft is overlapped with the neutral layer of the electronic equipment.

The rotating shaft comprises a plurality of gear rotating shafts, adjacent gear rotating shafts are meshed together through gear teeth on the gear rotating shafts, the gear rotating shafts are connected through a plurality of connecting parts, and after an external force is born, each of the gear rotating shafts generates meshing transmission through the change of meshing positions so as to enable the rotating shaft to be bent to a state under a preset condition; through the combination of a plurality of gear rotating shafts and connecting parts, form the pivot that can crooked, and then when the pivot is arranged in the flexible screen electronic equipment, can make flexible screen electronic equipment fold to reduce the volume of equipment, conveniently carry.

Drawings

In the drawings (which are not necessarily drawn to scale), like numerals may describe similar components in different views. Like reference numerals having different letter suffixes may represent different instances of similar components. The drawings illustrate generally, by way of example and not by way of limitation, various embodiments discussed herein.

FIG. 1 is a schematic view of a bent shaft structure according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a first gear shaft according to an embodiment of the present invention;

FIG. 3 is a schematic view of a shaft in a straightened state according to an embodiment of the present invention;

FIG. 4 is a schematic view of a shaft in one form during bending according to an embodiment of the present invention;

FIG. 5 is a schematic view of a rotating shaft of another embodiment of the bending process according to the present invention;

FIG. 6 is a schematic view showing the shape of a first connecting member according to an embodiment of the present invention;

FIG. 7 is a schematic view of a first connecting member after connection according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a structure of a shaft after bending according to a second embodiment of the present invention;

FIG. 9 is a schematic diagram of a second gear shaft according to an embodiment of the present invention;

FIG. 10 is a schematic view of a shaft in a straightened state according to a second embodiment of the present invention;

FIG. 11 is a schematic view of a rotation axis of a form of the bending process according to the second embodiment of the present invention;

FIG. 12 is a schematic view of a rotating shaft of another embodiment of the bending process according to the second embodiment of the present invention;

FIG. 13 is a diagram illustrating a third embodiment of a rotating shaft during bending according to the second embodiment of the present invention;

FIG. 14 is a diagram illustrating a fourth embodiment of a shaft during bending according to the second embodiment of the present invention;

FIG. 15 is a schematic view of a structure of a shaft after bending according to a third embodiment of the present invention;

FIG. 16 is a schematic view of a shaft in a straightened state according to a third embodiment of the present invention;

FIG. 17 is a schematic view of a shaft in a third embodiment of the bending process;

FIG. 18 is a schematic view of another form of rotation axis during a third bending process according to an embodiment of the present invention;

FIG. 19 is a schematic view of a third embodiment of a shaft during bending in accordance with the present invention;

FIG. 20 is a schematic view of a fourth embodiment of a shaft during a third bending process according to the present invention;

FIG. 21 is a schematic view of a fifth embodiment of a shaft during bending in accordance with the third embodiment of the present invention;

FIG. 22 is a diagram illustrating a structure of a spindle after bending according to a fourth embodiment of the present invention;

FIG. 23 is a schematic view of a shaft in a straightened state according to an embodiment of the present invention;

FIG. 24 is a schematic view of a rotation axis of a fourth embodiment of the present invention in a bending process;

FIG. 25 is a schematic view of a rotation axis of another embodiment of the fourth bending process according to the present invention;

FIG. 26 is a schematic view of a third form of the shaft during bending according to the fourth embodiment of the present invention;

FIG. 27 is a schematic view of a fifth embodiment of the present invention;

FIG. 28 is a schematic view of a fifth embodiment of the present invention in a straightened state;

FIG. 29 is a schematic view of a shaft in a fifth embodiment of the present invention;

FIG. 30 is a schematic view of a rotating shaft of another embodiment of the fifth bending process according to the present invention;

fig. 31 is a schematic diagram of an electronic device after being folded in accordance with the sixth embodiment of the present invention;

Fig. 32 is a schematic diagram of another electronic device after being folded in accordance with the sixth embodiment of the present invention;

Fig. 33 is a schematic diagram of a third electronic device after being folded in accordance with the sixth embodiment of the present invention;

Fig. 34 is a schematic diagram of a fourth electronic device after being folded in accordance with the sixth embodiment of the present invention;

fig. 35 is a front view of an electronic device in a straightened state according to a sixth embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

In various embodiments of the invention: the rotating shaft provided by the embodiment of the invention comprises:

In addition, the plurality of connecting members include a first connecting member disposed at an axial center position of the gear shaft for generating a friction force at a contact surface with the gear shaft during bending of the shaft, so that the shaft can be maintained in any state during bending.

In an embodiment, in practical application, the bending state of the rotating shaft can be designed according to needs, such as a C-type structure, a Z-type structure, a G-type structure, and the like. According to the designed bending state of the rotating shafts, the rotating shafts need to comprise bendable parts, and each gear rotating shaft in the bendable parts is a first structure gear rotating shaft; the first structural gear rotating shaft is a gear rotating shaft with a double-wheel structure; the rotating shaft comprises a first gear rotating shaft chain and a second gear rotating shaft chain;

Further, according to the designed bending state of the rotating shaft, the rotating shaft can further comprise a transmission part, and the plurality of connecting parts further comprise a second connecting part; each gear rotating shaft in the transmission part is a second structure gear rotating shaft; the second structure gear rotating shaft is a gear rotating shaft with a single-wheel structure;

The rotation directions of the two ends of the transmission part can be controlled by the number of the second structure gear rotating shafts in the transmission part, so that the designed bending state of the rotating shafts is achieved.

Specifically, the number of the second structural gear rotating shafts in the transmission part is an odd number; in the bending process of the rotating shaft, the two ends of the transmission part have the same rotating direction.

The number of the second structure gear rotating shafts in the transmission part is even; in the bending process of the rotating shaft, two ends of the transmission part have opposite rotating directions.

In practical application, the flexible rotating shaft is formed by combining a plurality of gear rotating shafts and connecting parts, and can be used in flexible screen electronic equipment. When the flexible screen electronic equipment is needed, an external force can be applied to the rotating shaft, so that the flexible screen electronic equipment is in a straightening state, and a user can perform corresponding operation through a display area with a large area; when the flexible screen electronic equipment is not used, an external force can be applied to the rotating shaft so as to fold the flexible screen electronic equipment, so that the flexible screen electronic equipment is in a bending state, and therefore, the volume of the flexible screen electronic equipment can be reduced, and the flexible screen electronic equipment is convenient to store and carry.

In addition, through the meshing transmission between the gear rotating shafts, accurate positioning of the flexible screen electronic equipment can be realized.

The following describes a spindle and a structure that can be implemented in an electronic device in connection with various embodiments.

Example 1

The present embodiment provides a rotating shaft, as shown in fig. 1, including:

A bendable portion 10, each of which is a first structural gear shaft 11; as shown in fig. 2, the first structural gear shaft is a gear shaft with a double-wheel structure.

More specifically, the shaft includes a first gear shaft chain 12 and a second gear shaft chain 13; wherein,

In the first gear rotating shaft chain 12, adjacent first structure gear rotating shafts 11 are meshed together through gear teeth;

in the second gear rotating shaft chain 13, adjacent first structure gear rotating shafts 11 are meshed together through gear teeth;

a first structural gear rotating shaft in the first gear rotating shaft chain and a first structural gear rotating shaft in the second gear rotating shaft chain are connected by adopting a first connecting part 14 in an axis staggered mode;

The first connecting part 14 is further used for generating friction force on the contact surface with the gear rotating shaft during the bending process of the rotating shaft so that the rotating shaft can be kept in any state during the bending process.

When an external force is applied to the rotating shaft, namely, the rotating shaft bears an external force, each of the plurality of gear rotating shafts generates meshing transmission through the change of the meshing position, so that the rotating shaft is bent to a state under a preset condition.

Specifically, as shown in fig. 3, when an external force is applied to the rotating shafts, each of the plurality of first structural gear rotating shafts 11 generates engagement transmission through a change of engagement positions, so that the rotating shafts start to bend as shown in fig. 4, bending of the rotating shafts as shown in fig. 5 is generated as the engagement transmission proceeds, and the rotating shafts bend to a final state as shown in fig. 1 as the engagement transmission proceeds.

Of course, when the rotating shaft is in the bending state shown in fig. 1, after an external force is applied to the rotating shaft, each of the plurality of gear rotating shafts generates meshing transmission through the change of the meshing position, and the rotating shaft can finally be in the unbending state shown in fig. 3 according to the reverse process of fig. 4 and 5.

In the bending process of the rotating shaft, through the change of the meshing position between the adjacent first structure gear rotating shafts 11 and the interaction between the first gear rotating shaft chain 12 and the second gear rotating shaft chain 13, the angle between each adjacent first structure gear rotating shafts 11 is changed, so that the rotating shaft finally presents a bending state of a C-shaped structure, and the rotating shaft can be kept in the bending state of the C-shaped structure through the friction force generated by the contact surface of the first connecting part 14 and the first structure gear rotating shaft 11.

Here, in the process of bending the rotating shaft, the gears of the first structural gear rotating shaft 11 in the first gear rotating shaft chain 12 and the gears of the first structural gear rotating shaft 11 in the second gear rotating shaft chain 13 are staggered, so that when the angle change between two adjacent gears in the first gear rotating shaft chain 12 drives a corresponding one of the gears in the second gear rotating shaft chain 13 to rotate relative to the adjacent gear thereof, the rotation is transmitted back to the first gear rotating shaft chain 11, and similarly, the angle change between two adjacent gears in the second gear rotating shaft chain 13 drives the corresponding one of the gears in the first gear rotating shaft chain 12 to rotate relative to the adjacent gear thereof, and the rotation is transmitted back to the second gear rotating shaft chain 13, so that the joint motion of the whole bending part is achieved, and the angle between each adjacent first structural gear rotating shaft 11 is changed.

Here, since the first coupling member 14 is provided in each axis of the first structural gear shaft 11, its shape is generally a cylinder as shown in fig. 6.

In practical application, the friction force generated at the contact surface between the first connecting component 14 and the first structural gear shaft 11 may be achieved through a plurality of processes, for example:

In the first way, threads are arranged on the outer wall of the first connecting part 14, corresponding threads are also arranged in the axle center of the first structural gear rotating shaft 11, and friction force is generated by means of nuts and nuts;

In the second way, the diameter of the first connecting part 14 is increased to be close to or slightly larger than the diameter of the shaft center hole of the first structural gear shaft 11, and friction force is generated during the rotation of the first structural gear shaft 11.

In practical application, the design may be made as required, and the first connecting member 14 at a proper position is only allowed to generate friction force on the contact surface with the first structural gear rotating shaft 11 on the whole rotating shaft, so long as the rotating shaft can be kept in any state in the bending process.

In addition, a spring piece may be disposed at the rotation axis position of the first structural gear rotation axis 11, and the first connection portion 14 may be assisted by the spring piece, so that the rotation axis may be maintained in any state during the bending process.

In one embodiment, to further ensure the integrity of the shaft, and avoid the falling of the first structural gear shaft 11 due to non-human factors, as shown in fig. 7, a plurality of first connection members 14 may be connected.

In practical application, the number of the first structural gear rotating shafts 11 can be determined according to the design requirement of the rotating shafts.

Example two

The present embodiment provides a rotating shaft, as shown in fig. 8, which includes: a bending part 10 and a transmission part 20 arranged at intervals; the outer ends of the bending parts at the two ends of the rotating shaft are respectively connected with the supporting parts, and in the bending state of the rotating shaft, the supporting parts bend in opposite directions, so that the two supporting parts are parallel to at least one transmission part;

each gear shaft in the bendable portion is a first structural gear shaft 11; as shown in fig. 2, the first structural gear shaft 11 is a gear shaft with a double-wheel structure;

Each of the gear shafts in the transmission part is a second structural gear shaft 21; as shown in fig. 9, the second structural gear shaft 21 is a gear shaft with a single-wheel structure;

Wherein the bendable portion 10 comprises: a first gear shaft chain and a second gear shaft chain;

In the first gear rotating shaft chain, adjacent first structure gear rotating shafts 11 are meshed together through gear teeth;

in the second gear rotating shaft chain, adjacent first structure gear rotating shafts 11 are meshed together through gear teeth;

a first structural gear rotating shaft 11 in the first gear rotating shaft chain and a first structural gear rotating shaft 11 in the second gear rotating shaft chain are connected 14 by adopting a first connecting component in a shaft center staggered mode;

In the transmission part, adjacent second structural gear rotating shafts 21 are meshed together through gear teeth; the first connecting part 14 is arranged at the axle center position of each second structural gear rotating shaft 21; and each first connecting member provided on the second structural gear shaft is fixed to the second connecting member (not shown in the drawing, the purpose of which is to make the angle between the adjacent second structural gear shafts 21 in the first transmission portion 201 unchanged when the meshing position is changed);

one end of the transmission part is meshed with one end of the bendable part through gear teeth; the other end part of the transmission part is meshed with one end part of the other bendable part through gear teeth; the second structural gear rotating shaft 21 positioned at the end part of the transmission part is connected with the first structural gear rotating shaft 11 positioned at the end part of the bendable part by adopting the first connecting part 14 in an axle center mode;

In the bending process of the rotating shaft, the angle between each adjacent first structure gear rotating shaft 11 is changed through the change of the meshing position between the adjacent first structure gear rotating shafts 11 and the interaction between two gear rotating shaft chains of each bending part.

During the bending process of the rotating shafts, the angle between the adjacent second structure gear shafts 21 in the transmission part is not changed by the change of the meshing position between the adjacent second structure gear shafts 21.

Specifically, the rotating shaft includes:

A first bending portion 101;

a second curved portion 102;

a third bending portion 103;

A first transmission portion 201; the number of the second structure gear rotating shafts in the first transmission part 201 is an even number;

The number of the second structural gear rotating shafts in the second transmission part 202 is an even number;

A first support member 151 with gear teeth; a second support member 152 with gear teeth; the first support part 151 and the second support part 152 are different in length;

One end of the first bending part 101 is connected to one end of the first supporting member 151 with a gear by means of an axial center, and the first connecting member 14 is used; the other end of the first bending part 101 is connected with one end of the first transmission part 201 by adopting the first connecting component 14 in an axle center mode; the other end of the first transmission part 201 is connected with one end of the second bending part 102 by adopting the first connecting component 14 in an axial mode; the other end of the second bending portion 102 is connected to one end of the second transmission portion 202 by the first connecting member 14 in an axial manner; the other end of the second transmission part 202 is connected with one end of the third bending part 103 by adopting the first connecting component 14 in an axial mode; one end of the third bending portion 103 is connected to the end of the second supporting member 152 with the gear by the first connecting member 14 through an axial center.

Here, the first support part 151 and the second support part 152 are not identical in length; generally, the first support member 151 is longer than the second support member 152, so that a standard G-shape is formed when the shaft is bent. The reason for this design is: avoiding interference problems between the first support member 151 and the second support member 152 during bending.

As shown in fig. 10, the rotation shafts are in a straightened state, and when an external force is applied to the rotation shafts, each of the plurality of gear rotation shafts is engaged by a change in engagement position, so that the rotation shafts start to bend, as shown in fig. 11; as the meshing transmission is continued, the rotating shaft is bent as shown in fig. 12, as the meshing transmission is further continued, the rotating shaft is bent as shown in fig. 13, and as the meshing transmission is continued, the rotating shaft is bent to be bent as shown in fig. 14; eventually, the shaft will bend to the final state shown in fig. 8.

Of course, when the rotating shaft is in the bending state shown in fig. 8, after an external force is applied to the rotating shaft, each of the plurality of gear rotating shafts generates engagement transmission through the change of engagement position, and the rotating shaft can finally be in the unbending state shown in fig. 10 according to the reverse process of fig. 11-14.

In the transmission process, through the change of the meshing position between the adjacent first structure gear rotating shafts 11 and the interaction between the two gear rotating shaft chains of each bending part, the angle between each adjacent first structure gear rotating shaft is changed, through the change of the meshing position between the adjacent second structure gear rotating shafts 21, the angle between the adjacent second structure gear shafts 21 in the first transmission part 201 is unchanged, through an even number of the second structure gear rotating shafts 21, the two ends of the first transmission part 201 have opposite rotating directions, through the change of the meshing position between the adjacent second structure gear rotating shafts 21, the angle between the adjacent second structure gear shafts 21 in the second transmission part 202 is unchanged, and through an even number of the second structure gear rotating shafts 21, the two ends of the second transmission part 202 have opposite rotating directions, so that the rotating shafts finally present a bending state of a G-type structure, and the friction force generated by the contact surface of the first connecting part 14 and the first structure gear rotating shaft 11 and/or the friction force generated by the contact surface of the first connecting part 14 and the second structure gear shaft 21 can keep the bending state of the rotating shafts.

In the bending process of the rotating shaft, in each bending part, the gears of the first structure gear rotating shaft in the first gear rotating shaft chain and the gears of the first structure gear rotating shaft in the second gear rotating shaft chain are arranged in a staggered mode, so that when the angle change between two adjacent gears in the first gear rotating shaft chain drives a corresponding gear in the second gear rotating shaft chain to rotate relative to the adjacent gear, the rotation is transmitted back to the first gear rotating shaft chain, and similarly, the angle change between two adjacent gears in the second gear rotating shaft chain drives a corresponding gear in the first gear rotating shaft chain to rotate relative to the adjacent gear, the rotation is transmitted back to the second gear rotating shaft chain, the joint movement of the whole bending part is achieved, and the angle between each adjacent first structure gear rotating shaft is changed.

Here, since the first coupling member 14 is provided in each of the first and second structural gear shafts 11 and 21, its shape is generally a cylinder as shown in fig. 6.

In practical application, the friction force generated between the contact surfaces of the first connecting part 14 and the first and second structural gear shafts 11 and 21 can be achieved through a plurality of processes, for example:

In the first way, threads are arranged on the outer wall of the first connecting part 14, corresponding threads are also arranged in the axes of the first structure gear rotating shaft 11 and the second structure gear rotating shaft 21, and friction force is generated by means of nuts and nuts;

In the second way, the diameter of the first connecting member 14 is increased to be close to or slightly larger than the diameters of the shaft center holes of the first structural gear shaft 11 and the second structural gear shaft 21, and friction force is generated during the rotation of the first structural gear shaft 11 and the second structural gear shaft 21.

In practical application, the design may be made as required, and the first connecting member 14 at a proper position is only allowed to generate friction force with the contact surface of the first structural gear rotating shaft 11 and the second structural gear rotating shaft 21 on the whole rotating shaft, so long as the rotating shaft can be kept in any state in the bending process.

In addition, a spring piece may be disposed at the rotation axis position of the first structural gear rotation axis 11 and the second structural gear rotation axis 21, and the first connection portion 14 may be assisted by the spring piece, so that the rotation axis may be maintained in any state during the bending process.

In practical application, the number of the first structural gear rotating shafts 11 and the second structural gear rotating shafts 21 can be determined according to the design requirement of the rotating shafts.

Example III

The present embodiment provides a rotating shaft, as shown in fig. 15, which includes: the bending part and the transmission part are arranged at intervals; the outer ends of the bending parts at the two ends of the rotating shaft are respectively connected with the supporting parts, and in the bending state of the rotating shaft, the supporting parts bend in opposite directions, so that the three supporting parts are parallel to at least one transmission part;

each gear shaft in the bendable portion is a first structural gear shaft 11; as shown in fig. 2, the first structural gear rotating shaft is a gear rotating shaft with a double-wheel structure;

wherein the bendable portion includes: a first gear shaft chain and a second gear shaft chain;

In the transmission part, adjacent second structural gear rotating shafts 21 are meshed together through gear teeth; the first connecting part 14 is arranged at the axle center position of each second structural gear rotating shaft 21; and each first connecting member provided on the second structural gear shaft is fixed to the second connecting member, not shown, for the purpose of being fixed to the second connecting member: when the meshing position is changed, the angle between the adjacent second structure gear shafts 21 in the first transmission portion 201 is not changed);

Specifically, the rotating shaft includes:

a fourth curved portion 104;

a fifth curved portion 105;

a sixth curved portion 106;

a third transmission portion 203; the number of the second structural gear shafts 21 in the third transmission part 203 is an even number;

A third support member 153 with gear teeth; a fourth support member 154 with gear teeth; a fifth support member 155 with gear teeth;

One end of the fourth bending portion 104 is connected to one end of the third supporting member 153 with a gear by means of the first connecting member 14 through an axial center; the other end of the fourth bending portion 104 is connected to one end of the third transmission portion 203 by adopting the first connecting member 14 in an axial manner; the other end of the third transmission part 203 is connected to one end of the fifth bending part 105 by the first connecting member 14 through an axial center; the other end of the fifth bending part 105 is connected to one end of the fourth supporting member 154 by the first connecting member 14 through an axial center; the other end of the fourth supporting member 154 is connected to one end of the sixth bending portion 106 by the first connecting member 14 through an axial center; the other end of the sixth bending portion 106 is connected to the gear-equipped end of the fifth supporting member 155 by the first connecting member 14 through an axial center.

As shown in fig. 16, the rotating shafts are in a straightened state, and when an external force is applied to the rotating shafts, each of the plurality of gear rotating shafts is engaged by a change in the engagement position, so that the rotating shafts start to bend, as shown in fig. 17; as the meshing transmission is continued, the rotating shaft is bent as shown in fig. 18, as the meshing transmission is further continued, the rotating shaft is bent as shown in fig. 19, and as the meshing transmission is continued, the rotating shaft is bent to be bent as shown in fig. 20; as the meshing drive proceeds further, the shaft bends to the bend shown in fig. 21; eventually, the shaft will bend to the final state as shown in fig. 15.

Of course, when the rotating shaft is in the bending state shown in fig. 15, after an external force is applied to the rotating shaft, each of the plurality of gear rotating shafts generates engagement transmission through the change of engagement position, and the rotating shaft can finally be in the unbending state shown in fig. 16 according to the reverse process of fig. 17-21.

In the transmission process, through the change of the meshing position between the adjacent first structure gear rotating shafts 11 and the interaction between the two gear rotating shaft chains of each bending part, the angle between each adjacent first structure gear rotating shaft 11 is changed, through the change of the meshing position between the adjacent second structure gear rotating shafts 21, the angle between the adjacent second structure gear shafts 21 in the three transmission parts 203 is not changed, and through an even number of the second structure gear rotating shafts 21, the two ends of the third transmission parts 203 have opposite rotation directions, so that the rotating shafts finally present the bending state of the G-shaped structure, and through the friction force generated by the contact surface of the first connecting part 14 and the first structure gear rotating shaft 11 and/or the friction force generated by the contact surface of the first connecting part 14 and the second structure gear rotating shaft 21, the rotating shafts can be kept in the bending state of the G-shaped structure.

Example IV

The present embodiment provides a rotating shaft, as shown in fig. 22, which includes: the bending parts and the transmission parts are arranged at intervals, the outer ends of the bending parts at the two ends of the rotating shaft are respectively connected with the supporting parts, and in the bending state of the rotating shaft, the supporting parts bend towards the same direction, so that the two supporting parts are parallel to at least one transmission part;

Specifically, the rotating shaft includes:

a seventh curved portion 107;

an eighth curved portion 108;

a fourth transmission portion 204; the number of the second structural gear shafts 21 in the fourth transmission part 204 is an odd number;

a sixth support member 156 with gear teeth; a seventh support member 157 with gear teeth;

One end of the seventh bending portion 107 is connected to one end of the sixth supporting member 156 with a gear by means of the first connecting member 14 through an axial center; the other end of the seventh bending portion 107 is connected to one end of the fourth transmission portion 204 by the first connecting member 14 through an axial center manner; the other end of the fourth transmission part 204 is connected to one end of the eighth bending part 108 by the first connecting member 14 through an axial center; the other end of the eighth bending portion 108 is connected to the gear-equipped end of the seventh supporting member 157 by the first connecting member 14 through an axial center.

As shown in fig. 23, the rotation shafts are in a straightened state, and when an external force is applied to the rotation shafts, each of the plurality of gear rotation shafts is brought into meshing transmission by a change in meshing position, so that the rotation shafts start to bend, as shown in fig. 24; as the meshing transmission is further carried out, the rotating shaft is bent as shown in fig. 25, and as the meshing transmission is further carried out, the rotating shaft is bent as shown in fig. 26; eventually, the shaft will bend to the final state shown in fig. 22.

Of course, when the shaft is in the bent state shown in fig. 22, after an external force is applied to the shaft, each of the plurality of gear shafts is engaged by the change of the engagement position, and the shaft can finally assume the straightened state shown in fig. 23 according to the reverse process of fig. 24 to 26.

In the transmission process, through the change of the meshing position between the adjacent first structure gear rotating shafts 11 and the interaction between the two gear rotating shaft chains of each bending part, the angle between each adjacent first structure gear rotating shaft 11 is changed, through the change of the meshing position between the adjacent second structure gear rotating shafts 21, the angle between the adjacent second structure gear shafts 21 in the fourth transmission part 204 is not changed, and through the odd number of the second structure gear rotating shafts 21, the two ends of the fourth transmission part 204 have the same rotation direction, so that the rotating shafts finally present the bending state of the Z-shaped structure, and through the friction force generated by the contact surface of the first connecting part 14 and the first structure gear rotating shaft 11 and/or the friction force generated by the contact surface of the first connecting part 14 and the second structure gear rotating shaft 21, the rotating shafts can be kept in the bending state of the G-shaped structure.

Example five

The present embodiment provides a rotating shaft, as shown in fig. 27, including: the bending parts and the transmission parts are arranged at intervals, the outer ends of the bending parts at the two ends of the rotating shaft are respectively connected with the supporting parts, and in the bending state of the rotating shaft, the supporting parts bend towards the same direction, so that the two supporting parts are perpendicular to at least one transmission part;

Specifically, the rotating shaft includes:

A ninth bending portion 109;

a tenth curved portion 1010;

An eleventh curved portion 1011;

A twelfth curved portion 1012;

thirteenth curved portion 1013;

a fifth transmission portion 205; the number of the second structural gear shafts 21 in the fifth transmission part 205 is an even number;

a sixth transmission 206; the number of the second structural gear shafts 21 in the sixth transmission portion 206 is an odd number;

A seventh transmission portion 207; the number of the second structural gear shafts 21 in the seventh transmission part 207 is an odd number;

an eighth transmission portion 208; the number of the second structural gear shafts 21 in the eighth transmission portion 208 is an even number;

an eighth support member 158 with gear teeth; a ninth support member 159 with gear teeth;

One end of the ninth bending part 109 is connected to one end of the eighth supporting member 158 with a gear by means of the first connecting member 14 through an axial center; the other end of the ninth bending portion 108 is connected to one end of the fifth transmission portion 205 by the first connecting member 14 in an axial manner; the other end of the fifth transmission part 205 is connected to one end of the tenth bending part 1010 by the first connecting member 14 through an axial center; the other end of the tenth bending part 1010 is connected to the sixth transmission part 206 by the first connecting member 14 through an axial center; the other end of the sixth transmission part 206 is connected to one end of the eleventh bending part 1011 by means of the first connecting member 14; the other end of the eleventh bending part 1011 and one end of the seventh transmission part 207 are connected by the first connecting member 14 by an axial center method; the other end of the seventh transmission part 207 is connected to one end of the twelfth bending part 1012 by the first connecting member 14 through an axial center; the other end of the twelfth bending part 1012 is connected with one end of the eighth transmission part 208 by the first connecting member 14 through an axial center manner; one end of the eighth transmission portion 208 is connected to one end of the thirteenth bending portion 1013 by the first connecting member 14 through an axial center; the other end of the thirteenth bending part 1013 is connected to the gear-equipped end of the ninth support member 159 by the first connecting member 14 through an axial center.

As shown in fig. 28, the rotating shafts are in a straightened state, and when an external force is applied to the rotating shafts, each of the plurality of gear rotating shafts is brought into meshing transmission by a change in meshing position, so that the rotating shafts start to bend, as shown in fig. 29; as the meshing transmission proceeds, the rotating shaft is bent as shown in fig. 30; eventually, the shaft will bend to the final state shown in fig. 27.

Of course, when the shaft is in the bent state shown in fig. 27, after an external force is applied to the shaft, each of the plurality of gear shafts is engaged by the change of the engagement position, and the shaft can finally assume the straightened state shown in fig. 28 according to the reverse process of fig. 29 to 30.

In the transmission process, through the change of the meshing position between the adjacent first structure gear rotating shafts 11 and the interaction between the two gear rotating shaft chains of each bending part, the angle between each adjacent first structure gear rotating shaft 11 is changed, through the change of the meshing position between the adjacent second structure gear rotating shafts 21, the angle between the adjacent second structure gear shafts 21 in each transmission part is not changed, and through an even number of the second structure gear rotating shafts 21, both ends of the fifth transmission part 205 and the eighth transmission part 208 have opposite rotation directions, and through an odd number of the second structure gear rotating shafts 21, both ends of the sixth transmission part 206 and the seventh transmission part 207 have the same rotation direction, so that the rotating shafts finally present a bending state of a sigma-type structure, and through the friction force generated by the contact surface of the first connection part 14 and the first structure gear rotating shaft 11 and/or the friction force generated by the contact surface of the first connection part 14 and the second structure gear rotating shaft 21, the rotating shafts can be kept in the bending state of a sigma-type structure.

Example six

The present embodiment provides an electronic device including:

A housing;

a flexible screen;

A rotating shaft;

The rotating shaft comprises:

In practical application, the rotating shaft of the electronic device may be the rotating shaft (C-type rotating shaft) described in the first embodiment. In this case, when the electronic apparatus is in the completely folded state, as shown in fig. 31, the electronic apparatus appearance exhibits a C-shaped appearance due to the rotation shaft.

The spindle of the electronic device may also be the spindle (G-type spindle) described in the second and third embodiments. In this case, when the electronic apparatus is in the completely folded state, as shown in fig. 32, the electronic apparatus appearance exhibits a G-type appearance due to the rotation shaft.

The spindle of the electronic device may also adopt the spindle (Z-type spindle) described in embodiment four. In this case, when the electronic apparatus is in the completely folded state, as shown in fig. 33, the electronic apparatus exhibits a Z-shaped appearance due to the rotation shaft.

Of course, the spindle of the electronic device may also be the spindle described in embodiment five (sigma spindle). In this case, when the electronic apparatus is in the fully folded state, as shown in fig. 34, the electronic apparatus appearance exhibits a sigma-type appearance due to the rotation shaft.

Here, in practical application, the electronic device may have at least one set of rotating shafts. In other words, the rotating shaft may have at least one set of rotating shafts according to the actual product needs.

When the electronic device is provided with at least two groups of rotating shafts, the positions of the at least two groups of rotating shafts can be determined according to the actual conditions of the product, for example, the electronic device is positioned at the middle position of the flexible screen, or is positioned at one side of the flexible screen, or is positioned at two sides of the flexible screen.

Here, when the electronic device has at least two sets of rotating shafts, two sets of rotating shafts in the at least two sets of rotating shafts can be located at the outer side of the flexible screen, so that the problem that the curling conditions at two ends of the electronic device are different can be avoided, and the rotating shafts, the shell and the flexible screen can be folded well.

Wherein, as shown in fig. 35, when the electronic device is seen in front view, two sides of the flexible screen are: the upper side and the lower side of the flexible screen.

In order to avoid the phenomenon that the tail end of the rotating shaft is in dislocation and vacancy due to the difference of inner diameter and outer diameter during bending, the curling state of the tail end is affected, so that the rotating shaft, the shell and the flexible screen can be well folded, and the neutral layer of the rotating shaft is overlapped with the neutral layer of the electronic equipment.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A shaft, the shaft comprising:

The gear rotating shafts are meshed together through gear teeth on the gear rotating shafts, and after an external force is born, each of the gear rotating shafts is meshed and driven through the change of the meshing position, so that the rotating shafts are bent to a state under a preset condition; the rotating shaft comprises: the bending part is used for arranging a spacing and connecting the supporting parts; the transmission part and the bendable part are meshed together through gear teeth;

A plurality of connection members for connecting the gear shafts;

The connecting parts comprise first connecting parts which are arranged at the axle center positions of the gear rotating shafts and are used for connecting the second structure gear rotating shafts positioned at the transmission parts with the first structure gears positioned at the bendable parts, and the connecting parts are used for generating friction force on the contact surfaces of the second structure gear rotating shafts and the gear rotating shafts in the bending process of the rotating shafts so that the rotating shafts can be kept in any state in the bending process;

the rotating shafts comprise bendable parts, and each gear rotating shaft in the bendable parts is the first structural gear rotating shaft; the first structural gear rotating shaft is a gear rotating shaft with a double-wheel structure; the rotating shaft comprises a first gear rotating shaft chain and a second gear rotating shaft chain;

each gear rotating shaft in the transmission part is a second structure gear rotating shaft; the second structure gear rotating shaft is a gear rotating shaft with a single-wheel structure;

2. The spindle of claim 1, wherein the plurality of connecting members further comprises a second connecting member;

3. The rotating shaft according to claim 2, wherein the number of the second structural gear rotating shafts in the transmission part is an odd number; in the bending process of the rotating shaft, the two ends of the transmission part have the same rotating direction.

4. A spindle as set forth in claim 3 wherein the number of said second structural gear spindles in said drive is an even number; in the bending process of the rotating shaft, two ends of the transmission part have opposite rotating directions.