Double-groove nail support rod water droplet rotation mechanism

Through the double-trough nail support rod water droplet rotation mechanism, the problem of implementing the folding function of the flexible screen is solved, providing a stable and non-iron folding effect, simplifying the processing difficulty, improving the durability of the equipment and synchronous rotation accuracy.

CN114658748BActive Publication Date: 2025-07-08DONGGUAN JINFENG ELECTRONICS
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Patent Information

Application Number
CN202210295810.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-03-24
Publication Date
2025-07-08
Estimated Expiration
2042-03-24

AI Technical Summary

Technical Problem

The prior art is difficult to meet the folding function requirements of flexible screens, especially the implementation of the inward folding method and abnormal noise problems. The traditional shaft processing is difficult and the accuracy requirements are high, which affects the industrialization process.

Method used

The double-trough nail support rod water droplet rotation mechanism is adopted, and the arc block is matched with the arc groove, the sliding groove is matched with the sliding column, and the design of the concave wheel and the cam connection plate is combined to achieve 0-180 degrees rotation, and self-locking and support are achieved through the spring and rivet structure.

Benefits of technology

It realizes stable folding of the flexible screen, meets the accuracy requirements, reduces processing difficulty, ensures synchronous rotation without abnormal noise, and improves the durability and life of the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN114658748B_ABST
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Abstract

The double-slot nail support rod water drop rotation mechanism disclosed in the present invention comprises a base, and a first movable block, a second movable block and a cam movable block which are linked with each other are arranged on both sides of the base; the first movable block is provided with an inclined sliding groove, an arc block, a first curved groove and a second curved groove, the second movable block is provided with a first sliding column, a first connecting hole and a rotating hole, and the cam movable block is provided with an inclined sliding block and a straight sliding groove; a first connecting plate is arranged between the first movable block and the second movable block for linkage, and the rotating shaft passes through the rotating hole and slides in the second curved groove and the third curved groove to realize the linkage between the first movable block, the second movable block and the first connecting plate; a second connecting plate is arranged between the first movable block and the cam movable block, and the arc groove and the arc block slide in cooperation to realize the linkage between the first movable block, the cam movable block and the second connecting plate.
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Description

Technical Field

[0001] The present invention relates to the technical field of rotating shaft design, and particularly to a double-groove nail strut water droplet rotating mechanism. Background Art

[0002] A foldable screen refers to a flexible OLED. The successful mass production of foldable screens not only brings great benefits to the manufacturing of a new generation of high-end smart phones, but also has a profound impact on the application of wearable devices due to its low power consumption and bendable characteristics. In the future, foldable screens will be widely used as personal smart terminals continue to penetrate. A foldable screen mobile phone refers to a mobile phone that uses a bendable and flexible screen. Because it is shaped like a rolled awn, it is also called a rolled awn mobile phone. Compared with traditional screens, foldable screens have obvious advantages. They are not only thinner and lighter in volume, but also lower in power consumption than the original devices, which helps to improve the battery life of the device. At the same time, based on its bendable and flexible characteristics, its durability is also much higher than that of previous screens, reducing the probability of accidental damage to the device.

[0003] To achieve the folding function of a foldable screen, in addition to the screen itself, the connection component for folding, that is, the design of the connecting shaft at the bending part, is also the biggest technical problem. Considering the particularity of the foldable screen, traditional rotating shafts cannot meet its functional requirements and a special foldable screen rotating shaft is needed to assist in realizing it. Considering the combination with a flexible screen, the flexible screen has its own particularity, and the industrial processing of the rotating shaft itself has certain difficulties, and the precision requirements for its accessories are extremely high. How to simplify the processing difficulty while meeting the application of the flexible screen in order to achieve industrialization. During the bending and rotating process of the flexible screen, how to ensure auxiliary synchronization and meet the precision requirements, especially without abnormal noise, and more importantly, there should be enough reserved space to meet the stability of the service life. The design of the synchronous rotating mechanism is one of the key technical elements.

[0004] To achieve the folding function of a flexible screen, in addition to the screen itself, the connection component for folding, that is, the design of the connecting shaft at the bending part, is also the biggest technical problem. Inner folding is one of the opening methods of a flexible screen. How to achieve the inner folding method in the shape of a water droplet requires a special bending mechanism to achieve. Summary of the Invention

[0005] The purpose of the present invention is to provide a double-groove nail strut water droplet rotating mechanism by overcoming the deficiencies in the prior art.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] Double-groove nail support rod water droplet rotation mechanism, including a base, on both sides of the base are provided with a first movable block, a second movable block and a cam movable block which are linked therewith; on the first movable block are provided with an inclined chute, an arc block, a first curve groove and a second curve groove, on the second movable block are provided with a first sliding column, a first connection hole and a rotation hole, and on the cam movable block are provided with an inclined slider and a straight chute; the first curve groove is in sliding fit with the first sliding column to link the first movable block and the second movable block, and the inclined slider is in sliding fit with the inclined chute to link the first movable block and the cam movable block;

[0008] A first connecting plate is linked and arranged between the first movable block and the second movable block, on the first connecting plate is provided with a third curve groove corresponding to the second curve groove, and between the second curve groove and the third curve groove is provided a rotation shaft which passes through the rotation hole and slides in the second curve groove and the third curve groove to realize the linkage among the first movable block, the second movable block and the first connecting plate;

[0009] A second connecting plate is provided between the first movable block and the cam movable block, on the second connecting plate are provided a second sliding column and an arc groove, the second sliding column slides in the straight chute, and the arc groove is in sliding fit with the arc block to realize the linkage among the first movable block, the cam movable block and the second connecting plate;

[0010] On the base is provided a second connection hole corresponding to the first connection hole, and a connecting column is arranged in the first connection hole and the second connection hole to realize the linkage and cooperation between the second movable block and the base.

[0011] Particularly, the base is provided with a gear connecting column, on the gear connecting column is provided a gear, on the cam movable block is provided a tooth pattern, and the gear and the tooth pattern are meshed with each other to realize synchronous rotation of 0 degree - 180 degrees.

[0012] Particularly, the front end of the base includes a connection seat, between the base and the connection seat are arranged in parallel two connection shafts for connection and positioning, on the connection seat is provided a concave wheel connecting plate, and the concave wheel connecting plate and the cam movable block are in concave-convex fit to realize clamping self-locking at 0 degree and 180 degrees and the screen support function, and on the connection shaft is provided a spring for realizing torsion.

[0013] Particularly, on the base are provided pin shafts for connection and positioning which are longitudinally distributed.

[0014] Particularly, a third connecting plate is arranged between the first connecting plate and the second connecting plate to form a three-plate combined structure, a rotating shaft cover is arranged at the lower part of the base, and between the rotating shaft cover and the third connecting plate are provided rivets and springs for realizing up-and-down movement.

[0015] The beneficial effects of the present invention are as follows: The double-groove nail support rod water droplet rotation mechanism provided by the present invention sets the arrangement mode of the double-groove nail combination, realizes 0-degree to 180-degree rotation through the cooperation of the arc block and the arc groove, realizes 0-degree to 180-degree rotation through the cooperation of the sliding groove and the sliding column, combined with the cooperation of the semi-circular arc groove and the semi-circular arc block, restricts the length and movement track through the sliding cooperation with the sliding plate and the sliding seat, and the cam and the cam connecting plate are in surface cooperation to realize the self-locking and positioning functions at 0 degrees and 180 degrees, drive the cam connecting plate to rotate, realize the 180-degree screen support, self-locking and positioning functions, and the structural design of the concave and convex cams and the spring meets the self-locking of the clamping points and the screen support functions in the 0-degree and 180-degree states. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention at 0 degrees horizontally.

[0017] Figure 2 It is a schematic diagram of the overall structure of the present invention at 180 degrees horizontally.

[0018] Figure 3 It is a schematic diagram of the overall structure of the present invention at 90 degrees vertically.

[0019] Figure 4 It is a schematic diagram of the three-plate structure of the present invention.

[0020] Figure 5 It is an overall exploded view of the present invention.

[0021] Figure 6 It is a partial exploded view of the two-plate type of the present invention.

[0022] Figure 7 It is a partial exploded view of the three-plate type of the present invention.

[0023] Figure 8 It is a two-plate structure diagram of the present invention.

[0024] Figure 9 It is a three-plate structure diagram of the present invention.

[0025] Figure 10 It is a structure diagram of the rotating shaft cover of the present invention.

[0026] Figure 11 It is a structure diagram of the base of the present invention.

[0027] Figure 12 It is a structure diagram of the first movable block of the present invention.

[0028] Figure 13 It is a structure diagram of the second movable block of the present invention.

[0029] Figure 14 It is a structure diagram of the cam movable block of the present invention.

[0030] Figure 15This is the structural diagram of the first connecting plate of the present invention.

[0031] Figure 16 This is the structural diagram of the second connecting plate of the present invention. Detailed implementation manners

[0032] The present invention will be further described below in conjunction with the accompanying drawings of the specification:

[0033] Embodiment:

[0034] As Figures 1-16 shown, the double-groove nail strut water droplet rotating mechanism disclosed in this embodiment includes a base 1. Both sides of the base 1 are provided with a first movable block 2, a second movable block 3 and a cam movable block 4 which are linked therewith. The first movable block 2 is provided with an inclined chute 201, an arc block 202, a first curve groove 203 and a second curve groove 204. The second movable block 3 is provided with a first sliding column 301, a first connection hole 302 and a rotation hole 303. The cam movable block 4 is provided with an inclined slider 401 and a straight chute 402. The first curve groove 203 is slidably engaged with the first sliding column 301 to link the first movable block 2 and the second movable block 3. The inclined slider 401 is slidably engaged with the inclined chute 201 to link the first movable block 2 and the cam movable block 4. A first connecting plate 5 is linked between the first movable block 2 and the second movable block 3. The first connecting plate 5 is provided with a third curve groove 501 corresponding to the second curve groove 204. A rotating shaft 6 is provided between the second curve groove 204 and the third curve groove 501. The rotating shaft 6 passes through the rotation hole 303 and slides in the second curve groove 204 and the third curve groove 501 to realize the linkage between the first movable block 2, the second movable block 3 and the first connecting plate 5. A second connecting plate 7 is provided between the first movable block 2 and the cam movable block 4. The second connecting plate 7 is provided with a second sliding column 701 and an arc groove 702. The second sliding column 701 slides in the straight chute 402. The arc groove 702 is slidably engaged with the arc block 202 to realize the linkage between the first movable block 2, the cam movable block 4 and the second connecting plate 7. The base 1 is provided with a second connection hole 101 corresponding to the first connection hole 302. A connecting column 8 is provided in the first connection hole 302 and the second connection hole 101 to realize the linkage cooperation between the second movable block 3 and the base 1.

[0035] The applicant declares that those skilled in the art in the relevant technical field, on the basis of the above embodiments, combine a certain step of the above embodiments with the technical solutions in the content of the invention, and thus generate a new method, which is also within the scope of the present invention. For the sake of brevity of the specification of this application, other implementation manners of these steps will not be listed.

[0036] In the above embodiments, the base 1 is provided with a gear connecting column 102, a gear 9 is provided on the gear connecting column 102, a tooth pattern 403 is provided on the cam movable block 4, and the gear 9 and the tooth pattern 403 are meshed with each other to achieve synchronous rotation of 0 degrees - 180 degrees. The front end of the base 1 includes a connecting seat 10, and two connecting shafts 11 for connection and positioning are arranged in parallel between the base 1 and the connecting seat 10. A cam connecting plate 12 is provided on the connecting seat 10, and the cam connecting plate 12 and the cam movable block 4 are in concave-convex fit to achieve self-locking at the card points of 0 degrees and 180 degrees and the screen support function. A torsion spring 13 for realizing torsion is provided on the connecting shaft 11. An axially distributed pin 14 for connection and positioning is provided on the base 1.

[0037] In another design in this embodiment, a third connecting plate 15 is provided between the first connecting plate 5 and the second connecting plate 7 to form a three-plate combined structure. A rotating shaft cover 16 is provided at the lower part of the base 1. A rivet 17 and a spring 18 for realizing up and down movement are provided between the rotating shaft cover 16 and the third connecting plate 15. The spring 18 is arranged on the rivet 17, and the rivet 17 passes through a rivet hole 19 on the connecting seat 10.

[0038] The applicant further declares that the present invention uses the above embodiments to illustrate the implementation method and device structure of the present invention, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above methods and structures to be implemented. Those skilled in the art should understand that any improvement to the present invention, equivalent replacement of the implementation method selected by the present invention, addition of steps, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

[0039] Technical principle of this embodiment:

[0040] Set the arrangement mode of double groove nails, realize 0 degrees - 180 degrees rotation through the cooperation of the arc block and the arc groove, realize 0 degrees - 180 degrees rotation through the cooperation of the sliding groove and the sliding column, combined with the cooperation of the semi-circular groove and the semi-circular block, restrict the length and movement track through the sliding cooperation with the sliding plate and the sliding seat, and the cam and the cam connecting plate are in curved surface cooperation to realize self-locking and positioning functions at 0 degrees and 180 degrees, drive the cam connecting plate to rotate, realize 180 degrees screen support, self-locking and positioning functions, and the structural design of the concave and convex cams and the spring meets the self-locking at the card points and the screen support function in the 0 degrees and 180 degrees states.

[0041] The above description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention. Therefore, without departing from the design spirit of the present invention, any equivalent changes or decorations made by those ordinary engineering and technical personnel in the art to the structure, features and principles described in the present invention should fall within the protection scope of the patent application of the present invention.

Claims

1. Double-groove nail support rod water droplet rotation mechanism, characterized in that: It includes a base, and on both sides of the base, there are a first movable block, a second movable block and a cam movable block linked thereto; on the first movable block, there are an inclined chute, an arc block, a first curve groove and a second curve groove, on the second movable block, there are a first sliding column, a first connection hole and a rotation hole, and on the cam movable block, there are an inclined slider and a straight chute; the first curve groove is slidably matched with the first sliding column to link the first movable block and the second movable block, and the inclined slider is slidably matched with the inclined chute to link the first movable block and the cam movable block; A first connecting plate is linked between the first movable block and the second movable block. On the first connecting plate, there is a third curve groove corresponding to the second curve groove. Between the second curve groove and the third curve groove, there is a rotating shaft. The rotating shaft passes through the rotation hole and slides in the second curve groove and the third curve groove to realize the linkage among the first movable block, the second movable block and the first connecting plate; A second connecting plate is provided between the first movable block and the cam movable block. On the second connecting plate, there are a second sliding column and an arc groove. The second sliding column slides in the straight chute, and the arc groove is slidably matched with the arc block to realize the linkage among the first movable block, the cam movable block and the second connecting plate; On the base, there is a second connection hole corresponding to the first connection hole. A connecting column is arranged in the first connection hole and the second connection hole to realize the linkage cooperation between the second movable block and the base.

2. The double-groove nail support rod water droplet rotating mechanism according to claim 1, characterized in that: The base is provided with a gear connecting column, on the gear connecting column, there is a gear, and on the cam movable block, there are tooth lines. The gear and the tooth lines are meshed with each other to realize synchronous rotation of 0 degrees - 180 degrees.

3. The double-groove nail support rod water droplet rotating mechanism according to claim 1, characterized in that: The front end of the base includes a connecting seat. Between the base and the connecting seat, there are two connecting shafts arranged in parallel for connection and positioning. On the connecting seat, there is a concave wheel connecting plate. The concave wheel connecting plate is in concave-convex cooperation with the cam movable block to realize snap self-locking at 0 degrees and 180 degrees and the screen support function. On the connecting shaft, there is a torsion spring for realizing torsion.

4. The double-groove nail support rod water droplet rotating mechanism according to claim 1, characterized in that: On the base, there are axles pins arranged longitudinally for connection and positioning.

5. The double-groove nail support rod water droplet rotating mechanism according to claim 1, characterized in that: A third connecting plate is arranged between the first connecting plate and the second connecting plate to form a three-plate combined structure. A rotating shaft cover is arranged at the lower part of the base. Between the rotating shaft cover and the third connecting plate, there are rivets and springs for realizing up and down movement.

Citation Information

Patent Citations

  • Double-groove nail supporting rod water drop rotating mechanism

    CN216951255U