CN211648768U - Linkage structure for hinging - Google Patents

Abstract

The utility model discloses a linkage structure for hinging, which comprises a linkage guide main seat, wherein two linkage guide main grooves are arranged on the linkage guide main seat, and the two linkage guide main grooves are centrosymmetric about the center of the linkage guide main seat; a linkage frame used for connecting the pieces to be hinged is connected in each linkage guide main groove in a sliding manner; each linkage frame is provided with internal teeth, each internal tooth is engaged and connected with a straight gear, an axle center is fixedly penetrated in a gear hole of each straight gear, and at least one end of each axle center is fixedly sleeved with linkage teeth; two linkage teeth positioned at the same end of the two axes are meshed and connected. The linkage structure can enable the two linkage frames to synchronously rotate, and further enable the two pieces to be hinged to be linked; still can make two wait the articulated elements respectively around the central line upset rather than the linkage direction total trough that corresponds to it can give up sufficient space and hold the flexion of flexible display screen between the two when realizing two waiting the articulated elements closed condition.

Description

A linkage structure for articulation

technical field

The utility model relates to the field of articulation, in particular to a linkage structure for articulation.

Background technique

With the development of display technology, foldable flexible displays have gradually become a research and development hotspot in the field of electronic display equipment technology. Generally, a foldable flexible display screen includes a flexible display screen and a folding mechanism, and the folding mechanism enables the flexible display screen to be opened from a folded state to a flat-out state (180°). However, when the existing folding mechanism is opened or folded, the two parts connected to it are turned over independently of each other, that is, the two parts cannot be linked, so that the two opposite surfaces of the flexible display screen cannot be formed. linkage.

Utility model content

The purpose of the present invention is to provide a linkage structure for hinged joint to solve the above problems.

For this purpose, the utility model adopts the following technical solutions:

A linkage structure for articulation, comprising a linkage guide base, two linkage guide grooves are opened on the linkage guide base, and the two linkage guide grooves are centrally symmetrical with respect to the center of the linkage guide base; Each of the linkage guide general grooves is slidably connected with a linkage frame for connecting the to-be-hinged parts;

Each of the linkage frames is provided with internal teeth, and each of the internal teeth is meshed with a spur gear, the gear hole of each of the spur gears is fixedly penetrated with an axle center, and at least one end of each of the axle centers is The fixed sleeve is provided with linkage teeth; the two linkage teeth located at the same end of the two shaft centers are meshed and connected.

Optionally, the linkage structure further includes a long flat gasket, the long flat gasket is provided with two long flat gasket holes, and the first ends of the two shaft centers are respectively rotated and penetrated through the two positions. A short flat gasket is also fixedly sleeved on the first end of each shaft center, and the short flat gasket is arranged in close contact with the long flat gasket.

Optionally, the first end of each axis is also rotatably sleeved with an elastic sheet, a nut is threadedly connected, and the linkage tooth is fixedly sleeved;

On the first end of each of the shafts, the nut, the elastic piece, the short flat washer, the long flat washer and the linkage teeth are arranged in order from far to near to the spur gear.

Optionally, the linkage structure further includes another long flat washer that is fixedly sleeved on the second ends of the two shaft centers and the other two linkage teeth that are meshed and connected to each other.

Optionally, the second end of each of the axle centers is fixedly provided with an axle center cap, and the diameter of the axle center cap is larger than the diameter of the axle center;

On the second end of each of the shafts, the shaft cap, the long flat washer and the linkage teeth are arranged in order in order of distance from the spur gear from far to near.

Optionally, the linkage structure further includes a connecting seat, a connecting seat groove is formed on the connecting seat, and the linkage guiding general seat is fixedly embedded in the connecting seat groove.

Optionally, each of the linkage frames includes a linkage plate for fixedly connecting the to-be-hinged piece and a linkage slide plate for sliding in the linkage guide general groove, and the linkage plate is fixedly connected to the linkage slide plate; the connection The notch of the seat groove is also provided with a connecting seat abdication groove for the linkage plate to extend;

The linkage sliding plate is a semicircular arc plate, and the inner teeth are arranged on the arc surface of the linkage sliding plate facing the slot of the connecting seat groove; the linkage guiding general groove is a semicircular arc groove.

Optionally, the general linkage guide seat includes two first linkage guide sub-seats and a second linkage guide sub-seat fixedly embedded in the connecting seat groove;

Two sides of the second linkage guide sub-seat are respectively adjacent to one of the first linkage guide sub-seats; two sides of the second linkage guide sub-seat facing the first linkage guide sub-seat are respectively provided with guide the second linkage guide sub-slot of the linkage slide plate, the side of each of the first linkage guide sub-seat facing the second linkage guide sub-seat is provided with a first linkage guide sub-slot for guiding the linkage slide plate;

The two sides of the linkage slide plate slide along the corresponding first linkage guide sub-slot and the second linkage guide sub-slot respectively, and the corresponding first linkage guide sub-slot and the second linkage guide sub-slot form a linkage guide general slot. .

Optionally, the first linkage guide sub-groove includes a first linkage guide A groove with at least double-sided openings and a first linkage guide notch extending along the inner groove wall of the first linkage guide A groove. The guide notch and the groove wall of the connecting seat groove form a first linkage guide B groove that communicates with the first linkage guide A groove;

The second linkage guide sub-groove includes a second linkage guide A groove with at least double-sided openings and a second linkage guide notch extending along the inner groove wall of the second linkage guide opening groove. The groove wall of the connecting seat groove forms a second interlocking guide B groove that communicates with the second interlocking guide A groove.

Optionally, the two second linkage guide sub-bases are center-symmetric with respect to the center point of the first linkage guide sub-base, and the first linkage guide sub-base is center-symmetric with respect to its own center.

Compared with the prior art, the utility model has the following beneficial effects:

The linkage structure provided by the utility model can make the two linkage frames rotate synchronously through the arrangement of the inner teeth, the spur gears, the shaft center and the linkage teeth, so that the two to-be-hinged parts can be linked together. Further, through the arrangement of the linkage guide groove and the linkage slide plate, the present invention can make the two to-be-hinged parts turn over respectively around the center line of the corresponding linkage guide groove, so as to realize the two to-be-hinged parts when they are in the closed state. There is enough space between them to accommodate the curved part of the flexible display.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

The structures, proportions, sizes, etc. shown in the drawings in this specification are only used to cooperate with the contents disclosed in the specification for the understanding and reading of those who are familiar with the technology, and are not used to limit the conditions for the implementation of the present invention. Therefore, without technical substantive significance, any modification of the structure, the change of the proportional relationship or the adjustment of the size should still fall within the scope of the present invention without affecting the effect that the present invention can produce and the purpose that can be achieved. The disclosed technical content must be within the scope of coverage.

1 is a schematic structural diagram of a linkage structure provided by an embodiment of the present invention;

2 is an exploded schematic diagram of a linkage structure provided by an embodiment of the present invention;

3 is a schematic structural diagram of a connection seat provided by an embodiment of the present invention;

4 is a schematic structural diagram of a linkage guide base provided by an embodiment of the present invention;

Fig. 5 is the schematic diagram that the linkage structure provided by the embodiment of the present utility model is in a flat state;

Fig. 6 is the enlarged schematic diagram of the circle part in Fig. 5;

7 is a schematic diagram of the linkage structure provided in an embodiment of the present invention in a folded state;

FIG. 8 is an enlarged schematic view of the circled portion in FIG. 7 .

Illustration description: 11. Linkage guide base; 110, Linkage accommodation space; 111, First linkage guide sub-seat; 112, Second linkage guide sub-seat; 113, First linkage guide sub-slot; 1131, First linkage Guide A groove; 1132, first linkage guide notch; 114, second linkage guide sub-slot; 1141, second linkage guide A groove; 1142, second linkage guide notch; 12, linkage guide general groove; 13, linkage frame; 130, internal tooth; 131, linkage slide plate; 132, linkage plate; 141, spur gear; 142, axis; 143, linkage tooth; 144, long flat gasket; 145, short flat gasket; 146, shrapnel; 147, 148. Axle cap; 2. Connecting seat; 21. Connecting seat slot; 22. Connecting seat giving way; 3. Part to be hinged; 4. Flexible display screen; 40. Bending part.

Detailed ways

In order to make the purpose, features and advantages of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the embodiments described below are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on those shown in the accompanying drawings. The orientation or positional relationship is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a reference to the present utility model. limits. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a centered component at the same time.

The technical solutions of the present utility model will be further described below with reference to the accompanying drawings and through specific embodiments.

Referring to FIG. 1 , an embodiment of the present utility model provides a linkage structure for hinged joints, including a linkage guide base 11 . The linkage guide base 11 is provided with two linkage guide grooves 12 . The two linkage guide grooves 12 is centrally symmetric with respect to the center of the linkage guide base 11 . Each linkage guide groove 12 is slidably connected with a linkage frame 13 for connecting the to-be-hinged piece 3 .

2-4, each linkage frame 13 is provided with internal teeth 130, each internal tooth 130 is meshed with a spur gear 141, and the gear hole of each spur gear 141 is fixedly penetrated with a shaft center 142. At least one end of the core 142 is fixedly sleeved with linkage teeth 143 . The two linkage teeth 143 located at the same end of the two shaft centers 142 are engaged and connected.

The linkage structure further includes an elongated flat gasket 144. The elongated flat gasket 144 is provided with two elongated flat gasket holes, and the first ends of the two shaft centers 142 are respectively rotated through the two elongated flat gasket holes. A short flat washer 145 is also fixedly sleeved on the first end of each shaft center 142 , and the short flat washer 145 is arranged in close contact with the long flat washer 144 .

The first end of each axis 142 is also rotatably sleeved with elastic pieces 146 , screwed with nuts 147 and fixedly sleeved with linkage teeth 143 .

On the first end of each shaft 142 , the nut 147 , the elastic piece 146 , the short flat washer 145 , the long flat washer 144 and the linkage tooth 143 are arranged in order of distance from the spur gear 141 from far to near.

The rotation of the shaft center 142 can drive the short flat washer 145 to rotate and produce friction with the long flat washer 144. In addition, the nut 147 and the elastic piece 146 can provide longitudinal pressure to generate a torsion force on the shaft center 142. The short flat washer 145 and the long flat washer The provision of the piece 144, the nut 147, the elastic piece 146, etc. makes the two parts 3 to be hinged rotate smoothly and have a good hand feeling.

Further, the linkage structure further includes another long flat washer 144 that is fixedly sleeved on the second ends of the two shaft centers 142 and two other linkage teeth 143 that are engaged with each other.

A shaft cap 148 is fixed on the second end of each shaft 142 , and the diameter of the shaft cap 148 is larger than the diameter of the shaft 142 .

On the second end of each shaft 142 , the shaft cap 148 , the long flat washer 144 and the linkage teeth 143 are arranged in sequence in order of distance from the spur gear 141 from far to near.

The linkage guide base 11 is provided with a linkage accommodation space for accommodating the spur gear 141, the shaft 142, the long flat washer 144, the short flat washer 145, the linkage tooth 143, the spring piece 146, the nut 147 and the shaft cap 148 110.

The linkage structure further includes a connecting seat 2 , a connecting seat groove 21 is formed on the connecting seat 2 , and the linkage guiding general seat 11 is fixedly embedded in the connecting seat groove 21 . The two groove walls of the connecting seat groove 21 are preferably circular arc surfaces.

Each linkage frame 13 includes a linkage plate 132 for fixedly connecting the to-be-hinged member 3 and a linkage slide plate 131 for sliding in the linkage guide groove 12 . The linkage plate 132 is fixedly connected to the linkage plate 131 . The notch of the connecting seat groove 21 is also provided with a connecting seat receding groove 22 for extending the linkage plate 132 .

The linkage sliding plate 131 is a semi-circular arc plate, and the inner teeth 130 are arranged on the arc surface of the linkage sliding plate 131 facing the notch of the connecting seat slot 21 . The linkage guide general groove 12 is a semi-circular arc groove.

The linkage guide base 11 includes two first linkage guide sub-seats 111 and a second linkage guide sub-seat 112 fixedly embedded in the connecting seat groove 21 . The two second linkage guide sub-seats 112 are center-symmetric with respect to the center point of the first linkage guide sub-seat 111 , and the first linkage guide sub-seat 111 is center-symmetric with respect to its own center.

Two sides of the second linkage guide sub-seat 112 are adjacent to a first linkage guide sub-seat 111 respectively. Two side surfaces of the second linkage guide sub-seat 112 facing the first linkage guide sub-seat 111 are respectively provided with second linkage guide sub-slots 114 for guiding the linkage slide plate 131, and each first linkage guide sub-seat 111 faces the second linkage guide sub-seat The side surfaces of the 112 are provided with first linkage guide sub-grooves 113 for guiding the linkage slide plate 131 .

The two sides of the linkage sliding plate 131 slide along the corresponding first linkage guide sub-slot 113 and the second linkage guide sub-slot 114 respectively, and the corresponding first linkage guide sub-slot 113 and the second linkage guide sub-slot 114 form a linkage guide assembly. Slot 12.

The first linkage guide sub-slot 113 includes a first linkage guide A groove 1131 with at least double-sided openings, a first linkage guide notch 1132 extending along the inner groove wall of the first linkage guide A groove 1131, the first linkage guide notch 1132 and the connecting seat. The groove wall of the groove 21 forms a first interlocking guide B groove that communicates with the first interlocking guide A groove 1131 .

The second interlocking guide sub-groove 114 includes a second interlocking guide A groove 1141 open on at least both sides, a second interlocking guide notch 1142 extending along the inner groove wall of the second interlocking guide opening groove, the second interlocking guide notch 1142 and the connecting seat groove The groove wall of 21 forms a second interlocking guide B groove that communicates with the second interlocking guide A groove 1141 .

To sum up, the main linkage guide groove 12 and the groove walls of the connecting seat groove 21 both play the role of guiding the linkage sliding plate 131 .

Referring to FIGS. 5-8 , the hinged member 3 of the present invention can be a display panel, and the flexible display panel 4 can be arranged on two display panels, and opens/folds when the two display panels are opened and closed. The bending portion 40 is formed when the flexible display screen 4 is folded. It can be understood that the to-be-hinged part 3 can also be other parts that need to be hinged.

The workflow of the linkage structure is as follows:

When the two parts to be hinged 3 are in a flat state, the two parts to be hinged 3 are on the same plane, and the linkage sliding plate 131 is completely in the linkage guide groove 12 .

When the two to-be-hinged parts 3 change from the flat state to the folded state, one of the to-be-hinged parts 3 is turned over around the center line of the corresponding linkage guide groove 12 in the first direction, and the other to-be-hinged part 3 is rotated in the first direction. The reverse direction is flipped around the center line of the corresponding linkage guide groove 12 , and the flipping of the two to-be-hinged parts 3 is performed synchronously due to the action of the linkage teeth 143 . At this time, the interlocking sliding plate 131 gradually slides out from the interlocking guide groove 12 .

When the two to-be-hinged parts 3 are in the folded state, the two to-be-hinged parts 3 face each other, half of the linkage sliding plate 131 is located in the general linkage guide groove 12 , and the other half extends out of the general linkage guide groove 12 .

The process of transitioning the two to-be-hinged parts 3 from the folded state to the flattened state is opposite to the aforementioned process from the flattened to the folded state, and will not be repeated here.

The utility model makes the two parts 3 to be hinged rotate synchronously through the setting of the linkage teeth 143, and the two parts 3 to be hinged rotate smoothly and feel comfortable by the long flat washer 144, the short flat washer 145, the elastic piece 146 and the nut 147 and other components. good. Further, in the present invention, through the setting of the linkage guide groove 12 and the linkage slide plate 131, the two to-be-hinged parts 3 are respectively turned over around the center line of the corresponding linkage guide groove 12, thereby realizing that the two to-be-hinged parts 3 are in the same position. In the closed state, sufficient space can be left between the two to accommodate the curved portion 40 of the flexible display screen 4 .

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: it can still be Modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention .

Claims (10)

1. The linkage structure for hinging is characterized by comprising a linkage guide main seat (11), wherein two linkage guide main grooves (12) are formed in the linkage guide main seat (11), and the two linkage guide main grooves (12) are centrosymmetric about the center of the linkage guide main seat (11); a linkage frame (13) used for connecting the to-be-hinged piece (3) is connected in each linkage guide main groove (12) in a sliding manner;

each linkage frame (13) is provided with internal teeth (130), each internal tooth (130) is in meshed connection with a spur gear (141), a gear hole of each spur gear (141) is fixedly provided with an axle center (142) in a penetrating manner, and at least one end of each axle center (142) is fixedly sleeved with linkage teeth (143); the two linkage teeth (143) positioned at the same end of the two shaft centers (142) are in meshed connection.

2. The linkage structure for the hinge according to claim 1, further comprising a long flat gasket (144), wherein the long flat gasket (144) is provided with two long flat gasket holes, and first ends of the two shaft centers (142) are respectively rotatably inserted into the two long flat gasket holes; the first end of each shaft center (142) is fixedly sleeved with a short flat gasket (145), and the short flat gasket (145) is tightly attached to the long flat gasket (144).

3. The linkage structure for hinging according to claim 2, wherein the first end of each shaft center (142) is further rotatably sleeved with an elastic sheet (146), is in threaded connection with a nut (147) and is fixedly sleeved with the linkage teeth (143);

at the first end of each axle center (142), the nuts (147), the spring plates (146), the short flat gaskets (145), the long flat gaskets (144) and the linkage teeth (143) are sequentially arranged from far to near from the straight gear (141).

4. A linkage structure for hinge joint according to claim 3, further comprising another long flat pad (144) fixedly sleeved on the second ends of two shaft cores (142) and another two linkage teeth (143) engaged with each other.

5. A linkage structure for hinges according to claim 4, wherein a shaft cap (148) is fixed to the second end of each shaft (142), the diameter of said shaft cap (148) being greater than the diameter of said shaft (142);

at the second end of each axle center (142), the axle center cap (148), the long flat gasket (144) and the linkage teeth (143) are sequentially arranged from far to near with the straight gear (141).

6. The linkage structure for the hinge according to claim 1, further comprising a connecting seat (2), wherein the connecting seat (2) is provided with a connecting seat slot (21), and the linkage guide main seat (11) is fixedly embedded in the connecting seat slot (21).

7. The linkage structure for hinging according to claim 6, wherein each linkage frame (13) comprises a linkage flat plate (132) for fixedly connecting the to-be-hinged member (3) and a linkage sliding plate (131) for sliding in the linkage guide main slot (12), the linkage flat plate (132) being fixedly connected with the linkage sliding plate (131); the notch of the connecting seat groove (21) is also provided with a connecting seat abdicating groove (22) for the linkage flat plate (132) to extend out;

the linkage sliding plate (131) is a semi-circular arc plate, and the internal teeth (130) are arranged on the arc surface of the linkage sliding plate (131) facing the notch of the connecting seat groove (21); the linkage guide main groove (12) is a semi-arc groove.

8. The structure according to claim 7, characterized in that said joint guide main seat (11) comprises two first joint guide sub-seats (111) and one second joint guide sub-seat (112) fixedly embedded in said connecting seat slot (21);

two sides of the second linkage guide sub-base (112) are respectively adjacent to the first linkage guide sub-base (111); two side surfaces, facing the first linkage guide sub-base (111), of the second linkage guide sub-base (112) are respectively provided with a second linkage guide sub-groove (114) used for guiding the linkage sliding plate (131), and the side surface, facing the second linkage guide sub-base (112), of each first linkage guide sub-base (111) is provided with a first linkage guide sub-groove (113) used for guiding the linkage sliding plate (131);

two sides of the linkage sliding plate (131) respectively slide along a first linkage guide sub-groove (113) and a second linkage guide sub-groove (114) corresponding to the linkage sliding plate, and the corresponding first linkage guide sub-groove (113) and the second linkage guide sub-groove (114) form the linkage guide main groove (12).

9. The linkage structure for hinge joint according to claim 8, wherein the first linkage guide sub-groove (113) comprises a first linkage guide a-groove (1131) opened at least on both sides and a first linkage guide notch (1132) extending along a groove wall inside the first linkage guide a-groove (1131), the first linkage guide notch (1132) and a groove wall of the connector seat groove (21) forming a first linkage guide B-groove communicating with the first linkage guide a-groove (1131);

the second linkage guide sub-groove (114) comprises a second linkage guide A groove (1141) with at least two sides opened and a second linkage guide notch (1142) extending along the inner groove wall of the second linkage guide opening groove, and the second linkage guide notch (1142) and the groove wall of the connecting seat groove (21) form a second linkage guide B groove communicated with the second linkage guide A groove (1141).

10. A linkage structure for hinging, according to claim 9, characterized in that two of said second linkage guide sub-seats (112) are centrosymmetric with respect to a central point of said first linkage guide sub-seat (111), said first linkage guide sub-seat (111) being centrosymmetric with respect to its own center.

Images