CN113969933B

CN113969933B - Locking mechanism of folding terminal, folding mechanism and folding terminal

Info

Publication number: CN113969933B
Application number: CN202010718415.8A
Authority: CN
Inventors: 李明阳
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2023-01-13
Anticipated expiration: 2040-07-23
Also published as: CN113969933A

Abstract

The invention discloses a locking mechanism of a folding terminal, the folding mechanism and the folding terminal, wherein a first locking piece and a second locking piece of the locking mechanism are arranged on one axial side of the first locking piece, a first locking part is arranged on the end face, facing the second locking piece, of the first locking piece, a second locking part is arranged on the end face, facing the first locking piece, of the second locking piece, the first locking part is provided with a first locking surface, the second locking part is provided with a second locking surface suitable for being matched with the first locking surface in a locking mode, the intersection line of the transverse section of the first locking part and the first locking surface is a first intersection line, the intersection line of the second locking surface is a second intersection line, and at least one of the first intersection line and the second intersection line is at least one of an involute, an arc line, a multi-segment straight line and a multi-segment arc line. According to the locking mechanism of the folding terminal, the local contact stress is effectively reduced, the reliability of the locking mechanism is improved, and the service life of the locking mechanism is prolonged.

Description

Locking mechanism of folding terminal, folding mechanism and folding terminal

Technical Field

The invention relates to the field of electronic equipment, in particular to a locking mechanism of a folding terminal, the folding mechanism and the folding terminal.

Background

A locking mechanism is generally provided in the folding terminal, and when the folding terminal is in the unfolding state and the folding state, the locking mechanism can play a role of locking, so as to prevent the folding terminal from rotating freely in the unfolding state and the folding state. However, the lock mechanism in the related art has a large contact stress on the lock surface and low reliability.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a locking mechanism of a folder terminal, which has a small contact stress of a locking surface and high reliability.

The invention also provides a folding mechanism with the locking mechanism of the folding terminal.

The invention also provides a folding terminal with the folding mechanism of the folding terminal.

A lock mechanism of a folder terminal according to an embodiment of a first aspect of the present invention includes: a first locking member; second locking piece, second locking piece sets up axial one side of first locking piece, first locking piece orientation be equipped with first locking portion on the terminal surface of second locking piece, second locking piece orientation be equipped with second locking portion on the terminal surface of first locking piece, first locking portion has first locking surface, second locking portion have be suitable for with first locking surface locking complex second locking surface, the transverse section of first locking portion with the friendship line of first locking surface is first friendship line, the friendship line of second locking surface is the second friendship line, first friendship line with at least one in the second friendship line is involute, arc wire, multistage straight line, multistage pitch arc.

According to the locking mechanism of the folding terminal provided by the embodiment of the invention, at least one of the first intersecting line and the second intersecting line is set to be a line comprising one or more of an involute, an arc line, a plurality of straight lines and a plurality of arc lines, so that the number of contact points between the first locking surface and the second locking surface can be increased, the local contact stress is effectively reduced, the reliability of the locking mechanism is improved, the service life of the locking mechanism is prolonged, and the reliability of the folding terminal with the locking mechanism is improved.

According to some embodiments of the invention, the first and second intersecting lines are involutes.

According to some embodiments of the invention, the base circles of the first and second intersecting lines are concentric.

According to some embodiments of the present invention, the first and second locking members have a plurality of locking positions, wherein the first and second locking surfaces are each in plurality, the plurality of first locking surfaces correspond to the plurality of second locking surfaces one-to-one, and the first locking member is rotatable relative to the second locking member to switch the first and second locking members between the plurality of locking positions.

According to some embodiments of the invention, the first locking surface and the second locking surface are both two, and an angle between normals of the two first locking surfaces is 90 °.

According to some embodiments of the present invention, the first lock portion and the second lock portion are each formed in an axisymmetrical pattern, two of the first lock surfaces are provided on the first lock portion symmetrically with respect to a central axis of the first lock portion, and two of the second lock surfaces are provided on the second lock portion symmetrically with respect to a central axis of the second lock portion.

According to some embodiments of the invention, the locking mechanism further comprises an elastic member configured to normally urge the second locking member to press the first locking member in an axial direction of the locking mechanism.

According to some embodiments of the invention, the number of the first locking pieces is two, one of the first locking portions is provided on each of the first locking pieces, and two of the second locking portions are provided on the second locking piece.

A folding mechanism of a folding terminal according to an embodiment of a second aspect of the present invention includes: a base; the rotating arm is rotatably connected with the base; a lock mechanism according to the embodiment of the first aspect of the present invention, wherein the first lock member is connected to the rotating arm to switch the rotating arm between the rotating state and the locked state.

According to the folding mechanism of the folding terminal in the embodiment of the second aspect of the present invention, by providing the locking mechanism in the embodiment of the first aspect of the present invention, by setting at least one of the first intersecting line and the second intersecting line to be a line including one or more of an involute, an arc line, a plurality of straight lines, and a plurality of arcs, the number of contact points between the first locking surface and the second locking surface can be increased, thereby effectively reducing local contact stress, improving the reliability of the locking mechanism, prolonging the service life of the locking mechanism, and thus improving the reliability of the folding mechanism.

A folding terminal according to an embodiment of the third aspect of the invention comprises a folding mechanism according to the above-described embodiment of the second aspect of the invention.

According to the folding terminal of the embodiment of the third aspect of the present invention, by providing the folding mechanism of the embodiment of the second aspect of the present invention, by setting at least one of the first intersection line and the second intersection line as a line including one or more of an involute, an arc line, a plurality of straight lines, and a plurality of arc lines, the number of contact points between the first locking surface and the second locking surface can be increased, thereby effectively reducing local contact stress, improving reliability of the locking mechanism, prolonging service life of the locking mechanism, and improving reliability of the folding mechanism.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view of a locking mechanism of a folder terminal according to an embodiment of the present invention;

fig. 2 is another perspective view of a locking mechanism of the folder terminal according to an embodiment of the present invention;

fig. 3 is an exploded view of a locking mechanism of the folder terminal according to an embodiment of the present invention;

fig. 4 is another exploded view of a locking mechanism of the folder terminal according to an embodiment of the present invention;

fig. 5 is still another exploded view of a locking mechanism of the folder terminal according to an embodiment of the present invention;

fig. 6 is a sectional view of a locking mechanism of a folder terminal according to an embodiment of the present invention;

fig. 7 is a perspective view of a folding mechanism of a folding terminal according to an embodiment of the present invention;

FIG. 8 is an enlarged view of portion A of FIG. 7;

fig. 9 is an exploded view of a folding mechanism of the folding terminal according to an embodiment of the present invention;

FIG. 10 is an enlarged view of portion B of FIG. 9;

FIG. 11 is a perspective view of a folding mechanism according to an embodiment of the invention;

FIG. 12 is an exploded view of a folding mechanism according to an embodiment of the present invention;

FIG. 13 is a schematic illustration of the maximum normal force on the first locking surface with the first line of intersection being an involute;

fig. 14 is a schematic view of the maximum normal force on the first locking surface with the first line of intersection being a straight line.

Reference numerals are as follows:

100. a locking mechanism;

1. a first locking member; 11. a first locking portion; 111a first locking surface; 111a, a first locking surface; 111b, a first locking surface; 112. a first intersection line;

2. a second lock; 21. a second lock part; 211. a second locking surface; 211a, a second locking surface; 211b, a second locking surface; 212. a second intersection line;

3. an elastic member;

200. a folding mechanism; 4. a rotating arm; 41. a first rotation arm; 42. a second rotating arm;

51. a first gear portion; 52. a second gear part; 53. a third gear; 54. a fourth gear; 6. a base;

1000. folding the terminal;

300. a first housing assembly; 400. a second housing assembly.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The locking mechanism 100 of the folder terminal 1000 according to the embodiment of the present invention will be described with reference to the accompanying drawings. The locking mechanism 100 may be used to lock the folding terminal 1000 in the unfolded state or the folded state.

As shown in fig. 1 to 5, the locking mechanism 100 of the folder terminal 1000 according to the embodiment of the present invention includes a first locking member 1 and a second locking member 2.

Specifically, the second locking member 2 is disposed on one axial side of the first locking member 1, a first locking portion 11 is disposed on an end surface of the first locking member 1 facing the second locking member 2, a second locking portion 21 is disposed on an end surface of the second locking member 2 facing the first locking member 1, the first locking portion 11 has a first locking surface 111, and the second locking portion 21 has a second locking surface 211 adapted to be in locking engagement with the first locking surface 111. When the first locking surface 111 and the second locking surface 211 are locked and matched, the folding terminal 1000 can be locked in an unfolding state or a folding state, so that the folding terminal 1000 can be prevented from rotating in the unfolding state or the folding state, misoperation is effectively prevented, and the use experience of a user is improved.

The intersecting line of the transverse section of the first locking part 11 and the first locking surface 111 is a first intersecting line 112, the intersecting line of the transverse section of the second locking part 21 and the second locking surface 211 is a second intersecting line 212, and at least one of the first intersecting line 112 and the second intersecting line 212 is at least one of an involute, an arc line, a multi-segment straight line and a multi-segment arc line.

In the present application, the term "transverse cross section of the first lock unit 11" refers to a plane obtained by cutting the first lock unit 11 perpendicular to a plane in the z direction in fig. 1, and the term "transverse cross section of the second lock unit 21" refers to a plane obtained by cutting the second lock unit 21 perpendicular to a plane in the z direction in fig. 1.

It is understood that the first intersection line 112 may be provided only as a line including one or more of an involute, a circular arc line, a plurality of straight lines, and a plurality of arc lines. It is also possible to provide only the second intersecting line 212 as a line including one or more of an involute, a circular arc line, multiple straight lines, and multiple arc lines. The first intersection line 112 and the second intersection line 212 may be provided as lines including one or more of an involute, a circular arc line, multiple straight lines, and multiple arc lines.

When the first intersecting line 112 is formed as at least one of an involute, an arc line, a plurality of straight lines, and a plurality of arc lines, the first intersecting line 112 may be formed as one of an involute, an arc line, a plurality of straight lines, and a plurality of arc lines, or as a combination of multiple lines of an involute, an arc line, a plurality of straight lines, and a plurality of arc lines. When the second intersecting line 212 is formed as at least one of an involute, an arc line, multiple straight lines and multiple arc lines, the second intersecting line 212 may be formed as one of an involute, an arc line, multiple straight lines and multiple arc lines, or as a combination of multiple lines of an involute, an arc line, multiple straight lines and multiple arc lines. In the present application, "plural" means two or more.

In the related art latch mechanism 100, the transverse cross sections of the first latch portion 11 and the second latch portion 21 are generally formed in a sector shape, and the first intersecting line 112 and the second intersecting line 212 are both formed in a straight line, the inventor finds in research that in the related art latch mechanism 100, the transverse cross sections of the first latch portion 11 and the second latch portion 21 must be concentric to ensure that the first latch surface 111 and the second latch surface 211 maintain surface-to-surface contact, and when the transverse cross sections of the first latch portion 11 and the second latch portion 21 are not concentric, the first latch surface 111 and the second latch surface 211 have a single-point contact, at this time, the contact stress on the first latch surface 111 and the second latch surface 211 is large, which seriously affects the reliability of the latch mechanism 100 and shortens the service life of the latch mechanism 100.

In contrast, according to the locking mechanism 100 of the folding terminal 1000 of the embodiment of the present invention, by setting at least one of the first intersecting line 112 and the second intersecting line 212 to a line including one or more of an involute, an arc line, a plurality of straight lines, and a plurality of arc lines, the number of contact points between the first locking surface 111 and the second locking surface 211 can be increased, thereby effectively reducing local contact stress, improving reliability of the locking mechanism 100, and prolonging service life of the locking mechanism 100, thereby improving reliability of the folding terminal 1000 having the locking mechanism 100.

According to some embodiments of the invention, the first intersection 112 and the second intersection 212 are both involutes. Specifically, referring to fig. 3 in combination with fig. 4, the first locking surface 111 and the second locking surface 211 may be surfaces formed by an involute curve as a sweep base line and a spiral line as a guide line. Wherein one of the first and second locking surfaces 111 and 211 may be formed as a convex surface, and the other of the first and second locking surfaces 111 and 211 may be formed as a concave surface.

Referring to fig. 13 and 14, in which fig. 13 shows the maximum normal force on the first locking surface 111 where the first intersection line 112 is an involute curve, fig. 14 shows the maximum normal force on the first locking surface 111 where the first intersection line 112 is a straight line.

As can be seen from comparison between fig. 13 and fig. 14, the contact force vectors on the first locking surface 111 where the first intersection line 112 is an involute have the characteristics of more contact points and less force, and the maximum normal force on the first locking surface 111 where the first intersection line 112 is an involute is much smaller than the maximum normal force on the first locking surface 111 where the first intersection line 112 is a straight line, which indicates that when both the first intersection line 112 and the second intersection line 212 are involute, even if the base circle of the first locking surface 111 and the base circle of the second locking surface 211 are not concentric, the first locking surface 111 and the second locking surface 211 can still maintain surface-to-surface contact, thereby increasing the number of contact points between the first locking surface 111 and the second locking surface 211, greatly reducing the contact stress on the first locking surface 111 and the second locking surface 211, improving the reliability of the locking mechanism 100, and being simple in structure, easy to implement, and low in processing cost.

Preferably, the base circle of the first intersection 112 and the base circle of the second intersection 212 are concentric. Therefore, the first locking surface 111 and the second locking surface 211 can be further ensured to be in surface-to-surface contact, the number of contact points between the first locking surface 111 and the second locking surface 211 is increased, the contact stress on the first locking surface 111 and the second locking surface 211 is greatly reduced, the reliability of the locking mechanism 100 is improved, the structure is simple, the implementation is easy, and the processing cost is low.

According to some embodiments of the present invention, the first locking member 1 and the second locking member 2 have a plurality of locking positions, wherein the first locking surface 111 and the second locking surface 211 are both plural, the plural first locking surfaces 111 correspond to the plural second locking surfaces 211 one by one, and the first locking member 1 can rotate relative to the second locking member 2 to switch the first locking member 1 and the second locking member 2 between the plural locking positions. In the description of the present invention, "a plurality" means two or more.

When adjusting the state of the folding terminal 1000, a torque for rotating the first latch 1 can be applied to the first latch 1, so that the first latch 1 and the second latch 2 rotate relatively, and thus the first latch 1 and the second latch 2 can rotate from an initial latching position to another latching position, and further, the locking of the folding terminal 1000 in different states can be realized. Simple structure and convenient adjustment.

For example, in some embodiments of the present invention, the first locking surface 111 and the second locking surface 211 are both two, and the included angle between the normals of the two first locking surfaces 111 is 90 °. The first locking element 1 and the second locking element 2 now have two locking positions in between.

Since the angle between the normal lines of the two first locking surfaces 111 is 90 °, the angle of relative rotation between the first lock member 1 and the second lock member 2 when the first lock member 1 and the second lock member 2 are switched from one locking position to the other is 90 °. Thereby, the locking of the folder terminal 1000 in the unfolded flat state of the full unfolding and the folded state of the full folding can be achieved.

For example, in some embodiments of the present invention, the folding terminal 1000 comprises a first housing component 300 and a second housing component 400 that can be folded and unfolded, wherein the first housing component 300 and the second housing component 400 are unfolded to form a plane when the folding terminal 1000 is in a fully unfolded state, and wherein the first housing component 300 and the second housing component 400 can be rotated 90 ° toward each other from the unfolded state to a folded state when the folding terminal 1000 is in the fully folded state.

According to some embodiments of the present invention, the locking mechanism 100 further comprises an elastic member 3, and the elastic member 3 is configured to normally urge the second locking member 2 to press the first locking member 1 in the axial direction of the locking mechanism 100. Optionally, the elastic member 3 is a spring.

Specifically, the elastic element 3 is always in a compressed state, and the elastic element 3 can provide an axial pre-tightening force. When the first locking surface 111 and the second locking surface 211 are locked and matched, the second locking member 2 always presses the first locking member 1 under the action of the elastic member 3, so that when the state of the folding terminal 1000 needs to be adjusted, a certain torque needs to act on the first locking member 1, and the first locking member 1 overcomes the elastic force of the elastic member 3. Thereby, the second lock member 2 and the first lock member 1 can be held at the lock position, and the reliability and stability of the lock mechanism 100 are improved.

In some embodiments of the present invention, referring to fig. 3 and 4, the first and

second locking portions

11 and 21 are each formed in an axisymmetrical pattern, two first locking surfaces 111 are provided on the first locking portion 11 symmetrically with respect to a central axis of the first locking portion 11, and two second locking surfaces 211 are provided on the second locking portion 21 symmetrically with respect to a central axis of the second locking portion 21. Thus, when the first lock member 1 and the second lock member 2 are switched between the two different lock positions, the required torque is the same, so that the first lock member 1 and the second lock member 2 can be switched between the two different lock positions.

According to some embodiments of the present invention, the first latch portion 11 is a bump formed on the first latch member 1, and the second latch portion 21 is a bump formed on the second latch member 2. Simple structure and convenient processing.

The switching process between the two different lock positions of the lock mechanism 100 of the embodiment of the present invention is described below with reference to fig. 1 to 6. For convenience of description, the two first locking surfaces 111 are referred to as "first locking surface 111a" and "first locking surface 111b", respectively, and the two second locking surfaces 211 are referred to as "second locking surface 211a" and "second locking surface 211b", respectively. The first locking surface 111a and the second locking surface 211a can form a locking position, which is referred to as a "first locking position", and the second locking surface 211a and the second locking surface 211b can form another locking position, which is referred to as a "second locking position".

In some embodiments of the present invention, the first latch member 1 is rotatable relative to the second latch member 2, and the second latch member 2 is translatable along an axis of the latch mechanism 100. When the first latch 1 and the second latch 2 are located at the first latch position, the folder terminal 1000 may be locked in a completely unfolded and flattened state, and when the first latch 1 is rotated by 90 ° around the rotation center, the first latch 1 and the second latch 2 are switched to the second latch position, and the folder terminal 1000 may be locked in a completely folded and folded state.

When the first and

second latches

1 and 2 are switched from the first latching position to the second latching position, in the initial state, the first latching surface 111a contacts the second latching surface 211a, the elastic force (e.g., spring force) of the elastic member 3 is at a minimum value, and the stage belongs to the first idle stage. When the state of the folding terminal 1000 is switched, the first locking member 1 may be rotated, and at this time, the first locking surface 111a with a certain slope may push the second locking surface 211a, so that the second locking member 2 translates towards a direction away from the first locking member 1, the second locking member 2 compresses the elastic member 3 to apply work, and the elastic force (e.g., spring force) of the elastic member 3 gradually increases, which belongs to a pushing stage. When the end surface of the first locking portion 11 facing the second locking member 2 contacts the end surface of the second locking portion 21 facing the first locking member 1, the elastic force of the elastic member 3 is not changed, and the foldable terminal 1000 can be smoothly rotated, which belongs to the second stop stage. When the first locking surface 111b contacts the second locking surface 211b, the elastic force of the elastic member 3 is reduced in the return stroke.

Similarly, when the first locking member 1 and the second locking member 2 are switched from the second locking position to the first locking position, the four phases of the first rest phase, the push phase, the second rest phase, and the return phase are also passed. Specifically, in the initial state, the first locking surface 111b contacts the second locking surface 211b, and the elastic force (e.g., spring force) of the elastic member 3 is at a minimum value, which belongs to the first rest stage. When the state of the folding terminal 1000 is switched, the first locking member 1 may be rotated, and at this time, the first locking surface 111b with a certain slope may push the second locking surface 211b, so that the second locking member 2 translates towards a direction away from the first locking member 1, the second locking member 2 compresses the elastic member 3 to apply work, and the elastic force (e.g., spring force) of the elastic member 3 gradually increases, which belongs to a pushing stage. When the end surface of the first locking portion 11 facing the second locking member 2 contacts the end surface of the second locking portion 21 facing the first locking member 1, the elastic force of the elastic member 3 is not changed, and the folder terminal 1000 can be smoothly rotated, which belongs to the second idle stage. When the first locking surface 111a contacts the second locking surface 211a, the elastic force of the elastic member 3 is reduced in the return stroke.

From this, can be with first locking piece 1 and second locking piece 2 locking at first locking position and second locking position, and be convenient for first locking piece 1 and second locking piece 2 switch between first locking position and second locking position, simple structure, design benefit.

According to some embodiments of the present invention, there are two first latches 1, one first latching portion 11 is provided on each first latch 1, and two second latching portions 21 are provided on the second latch 2. For example, in some embodiments of the present invention, the folding terminal 1000 includes a first housing assembly 300 and a second housing assembly 400 that can be folded and unfolded. The two first latches 1 may be connected to the first case assembly 300 and the second case assembly 400, respectively. Therefore, the two first locking members 1 are provided, the two second locking portions 21 are provided on the second locking member 2, and the locking of the folded terminal 1000 can be realized by providing one locking mechanism 100 on the folded terminal 1000, so that the structure of the folded terminal 1000 is simplified, and the assembly efficiency is improved.

In some embodiments of the invention, the two first locking members 1 may rotate synchronously. When two first locking pieces 1 rotate synchronously, one of the first locking pieces 1 is rotated, and the other first locking piece 1 also rotates together, so that the states of the first shell assembly 300 and the second shell assembly 400 can be synchronously locked, and the locking mechanism is simple in structure, ingenious in design and convenient to adjust.

As shown in fig. 7 to 10, the folding mechanism 200 of the folding terminal 1000 according to the embodiment of the second aspect of the present invention includes: a base 6, a rotating arm 4 and a locking mechanism 100, the rotating arm 4 being rotatably connected with the base 6, the locking mechanism 100 being the locking mechanism 100 according to the above-described first embodiment of the present invention, the first locking member 1 being connected with the rotating arm 4 to switch the rotating arm 4 between the rotating state and the locking state.

When the state of the foldable terminal 1000 is switched, the rotating arm 4 can be rotated, the first locking member 1 is driven to rotate through the rotating arm 4, so that the locking positions between the first locking member 1 and the second locking member 2 are switched, and the foldable terminal 1000 can be locked in different states.

In some embodiments of the present invention, the rotating arm 4 includes a first rotating arm 41 and a second rotating arm, and the first rotating arm 41 and the second rotating arm are connected by a linkage assembly to rotate the first rotating arm 41 and the second rotating arm synchronously.

Specifically, in some embodiments of the present invention, referring to fig. 9 and 10, the linkage assembly includes a first gear part 51, a second gear part 52, a third gear 53, and a fourth gear 54, the first gear part 51 is disposed on the first rotating arm 41, the second gear part 52 is disposed on the second rotating arm, the third gear 53 is meshed with the first gear part 51, the fourth gear 54 is meshed with the second gear part 52, and the third gear 53 is meshed with the fourth gear 54.

For example, when the first rotating arm 41 is rotated, the first gear part 51 drives the third gear 53 to rotate, the third gear 53 drives the fourth gear 54 to rotate, and the fourth gear 54 drives the second gear part 52 to rotate, so as to drive the second rotating arm to rotate. When the second rotating arm is rotated, the second gear portion 52 drives the fourth gear 54 to rotate, the fourth gear 54 drives the third gear 53 to rotate, and the third gear 53 drives the first gear portion 51 to rotate, so as to drive the first rotating arm 41 to rotate. Thus, when one of the first rotating arm 41 and the second rotating arm is rotated, the other of the first rotating arm 41 and the second rotating arm is rotated, so that the first rotating arm 41 and the second rotating arm can be rotated synchronously. Simple structure and ingenious design.

In some embodiments of the present invention, the locking mechanism 100 includes two first locking members 1 and one second locking member 2, each first locking member 1 is provided with one first locking portion 11, and the second locking member 2 is provided with two second locking portions 21. Two first latches 1 may be connected to the first and second

rotating arms

41 and 41, respectively. Therefore, the locking mechanism 100 can lock the first rotating arm 41 and the second rotating arm, prevent the first rotating arm 41 and the second rotating arm from rotating randomly, simplify the structure of the folding mechanism 200, and facilitate the improvement of the assembly efficiency.

In other embodiments of the present invention, the locking mechanism 100 may also include a first locking member 1 and a second locking member 2, and in this case, the first rotating arm 41 and the second rotating arm may be respectively connected to one locking mechanism 100, so that the first rotating arm 41 and the second rotating arm may be respectively locked by two locking mechanisms 100, and the first rotating arm 41 and the second rotating arm may also be prevented from freely rotating.

According to the folding mechanism 200 of the folding terminal 1000 according to the embodiment of the second aspect of the present invention, by providing the locking mechanism 100 according to the above-described embodiment of the first aspect of the present invention, by setting at least one of the first intersection line 112 and the second intersection line 212 to a line including one or more of an involute, an arc line, a plurality of straight lines, and a plurality of arc lines, the number of contact points between the first locking surface 111 and the second locking surface 211 can be increased, the local contact stress can be effectively reduced, the reliability of the locking mechanism 100 can be improved, the service life of the locking mechanism 100 can be prolonged, and the reliability of the folding mechanism 200 can be improved.

The folding terminal 1000 according to the embodiment of the third aspect of the present invention comprises the folding mechanism 200 according to the above-described embodiment of the second aspect of the present invention.

The folding terminal 1000 of the present application can be, for example, any of various types of computer system devices that are mobile or portable and that perform wireless communications. Specifically, the folder terminal 1000 can be a mobile phone or a smart phone (e.g., iphone-based, android-based phone), a portable game device (e.g., nintendo ds, playStationPortableTM, gameboyadvance, iphone), a laptop computer, a PDA, a portable internet device, a music player, and a data storage device, other handheld devices.

According to the folding terminal 1000 of the embodiment of the third aspect of the present invention, by providing the folding mechanism 200 of the embodiment of the second aspect of the present invention, by setting at least one of the first intersection line 112 and the second intersection line 212 to a line including one or more of an involute, an arc line, a plurality of straight lines, and a plurality of arc lines, the number of contact points between the first locking surface 111 and the second locking surface 211 can be increased, thereby effectively reducing local contact stress, improving reliability of the locking mechanism 100, prolonging service life of the locking mechanism 100, and improving reliability of the folding terminal 1000.

Other configurations and operations of the folder terminal 1000 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A locking mechanism of a folder terminal, comprising:

a first locking member;

the second locking piece is arranged on one axial side of the first locking piece, a first locking part is arranged on the end face, facing the second locking piece, of the first locking piece, a second locking part is arranged on the end face, facing the first locking piece, of the second locking piece,

the first locking part is provided with a first locking surface, the second locking part is provided with a second locking surface which is suitable for being matched with the first locking surface in a locking mode, the intersection line of the transverse section of the first locking part and the first locking surface is a first intersection line, the intersection line of the transverse section of the second locking part and the second locking surface is a second intersection line, and at least one of the first intersection line and the second intersection line is at least one of an involute, an arc line, a multi-section straight line and a multi-section arc line;

the first locking piece and the second locking piece are provided with a plurality of locking positions, wherein the first locking surface and the second locking surface are both in a plurality, the first locking surfaces and the second locking surfaces are in one-to-one correspondence, and the first locking piece can rotate relative to the second locking piece to enable the first locking piece and the second locking piece to be switched between the locking positions.

2. The lock mechanism of a folder-end as recited in claim 1, wherein the first and second intersecting lines are involute curves.

3. The locking mechanism of a folder end as recited in claim 2, wherein the base circles of the first and second intersecting lines are concentric.

4. The locking mechanism of a folding terminal of claim 1, wherein the number of the first locking surface and the second locking surface is two, and an angle between normal lines of the two first locking surfaces is 90 °.

5. The lock mechanism of a folder terminal as claimed in claim 4, wherein the first lock part and the second lock part are each formed in an axisymmetric pattern, two of the first lock surfaces are provided on the first lock part symmetrically with respect to a central axis of the first lock part, and two of the second lock surfaces are provided on the second lock part symmetrically with respect to a central axis of the second lock part.

6. The locking mechanism of a folding terminal according to claim 1, further comprising an elastic member configured to normally urge the second locking member to press the first locking member in an axial direction of the locking mechanism.

7. The lock mechanism of a folder terminal as claimed in any one of claims 1 to 6, wherein the number of the first lock members is two, one of the first lock portions is provided on each of the first lock members, and two of the second lock portions are provided on the second lock member.

8. A folding mechanism of a folding terminal, comprising:

a base;

the rotating arm is rotatably connected with the base;

a locking mechanism according to any one of claims 1 to 7, the first locking member being associated with the rotatable arm to switch the rotatable arm between the rotated condition and the locked condition.

9. A folding terminal, characterized in that it comprises a folding mechanism according to claim 8.