CN112253612B - U-shaped inner folding mechanism with four-axis sliding groove - Google Patents
U-shaped inner folding mechanism with four-axis sliding groove Download PDFInfo
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- CN112253612B CN112253612B CN202011234706.6A CN202011234706A CN112253612B CN 112253612 B CN112253612 B CN 112253612B CN 202011234706 A CN202011234706 A CN 202011234706A CN 112253612 B CN112253612 B CN 112253612B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 39
- 238000005452 bending Methods 0.000 claims abstract description 15
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/12—Pivotal connections incorporating flexible connections, e.g. leaf springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Telephone Set Structure (AREA)
Abstract
The invention discloses a U-shaped internal turning mechanism with four-axis sliding grooves, which comprises a structural main body, wherein the structural main body comprises two groups of rotating shafts, the rotating shafts comprise a rotating mechanism, the rotating mechanism comprises a first fixing frame and a second fixing frame which are longitudinally distributed in parallel, and a first rotating frame and a second rotating frame which are respectively bridged with two sides of the first fixing frame and the second fixing frame, and an arc-shaped sliding block and a straight groove sliding block for realizing bending rotation are respectively arranged between the first fixing frame and the first rotating frame and between the second rotating frame; the arc-shaped sliding block is in sliding connection with the first fixing frame and the straight groove sliding block, the first rotating frame and the second rotating frame are respectively in sliding connection with the straight groove sliding block, and an inward folding movement track of cyclic stress is formed to realize 0-180-degree inward folding rotation.
Description
Technical Field
The invention relates to the technical field of rotating shaft design, in particular to an inward-folding connecting shaft, and particularly relates to a U-shaped inward-folding rotating mechanism with four-shaft sliding grooves.
Background
At present, no matter flat plates, mobile phones or other electronic products with display screens are developed in the direction of the flexible screen, in the development process of the technical field, transition products with functions similar to those of the flexible screen are also indispensable, so-called transition products are folded by double screens, the effect of folding the whole screen is achieved by double screens, in the bending process, no obvious break exists, the whole electronic products give a folding use effect to the whole screen, and the situation of folding use of the screen by consumers is tested or fed back by the mode.
To achieve the above technical effects, the biggest technical problem is directly transferred from the design of the screen to the design technology of the rotating shaft, and how to achieve the inward folding needs a special rotating mechanism, so that not only is the possibility of rotating folding considered, but also the effectiveness of bilateral connection is considered, and especially the problem of synchronous bending needs to be satisfied, and the traditional inward folding flexible screen rotating shaft is inconvenient to manufacture with industrialization due to the large number of parts.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a U-shaped inward folding rotating mechanism with four-axis sliding grooves.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The U-shaped inner turning mechanism with the four-axis sliding grooves comprises a structural main body, wherein the structural main body comprises two groups of rotating shafts, each rotating shaft comprises a rotating mechanism, each rotating mechanism comprises a first fixing frame and a second fixing frame which are longitudinally distributed in parallel, and a first rotating frame and a second rotating frame which are respectively bridged with two sides of each of the first fixing frame and the second fixing frame, and an arc-shaped sliding block and a straight groove sliding block for realizing bending rotation are respectively arranged between each of the first fixing frame and the first rotating frame and between each of the first fixing frame and the second rotating frame;
the arc-shaped sliding block is in sliding connection with the first fixing frame and the straight groove sliding block, the first rotating frame and the second rotating frame are respectively in sliding connection with the straight groove sliding block, and an inward folding movement track of cyclic stress is formed to realize 0-180-degree inward folding rotation;
Two groups of first arc-shaped sliding grooves which are symmetrically distributed are formed in one side of the upper inner edge of the first fixing frame, and the arc-shaped sliding blocks slide in the first arc-shaped sliding grooves in a reciprocating mode;
The first rotating frame and the second rotating frame are respectively provided with a second arc-shaped chute and a linear sliding block, one side edge of the arc-shaped sliding block is provided with symmetrical and separate sliding columns, the linear sliding block is provided with symmetrical and distributed transverse sliding grooves and obliquely distributed linear sliding grooves, the sliding columns penetrate through the second arc-shaped chute and are in sliding connection with the linear sliding grooves, namely the linear sliding blocks are in sliding fit in the transverse sliding grooves, and the sliding columns are in sliding fit in the second arc-shaped chute and the linear sliding grooves to jointly realize 0-180-degree inward folding rotation without changing tangential points.
Particularly, the second fixing frame is provided with symmetrically distributed rotating columns, one side of the upper outer edge of the straight groove sliding block is provided with a rotating hole, and the rotating columns are rotationally connected in the rotating hole to realize connection positioning.
Particularly, a cam movable block is arranged at one side of the outer edge of the first fixing frame, a synchronization unit is arranged between the second fixing frame and the cam movable block, and the synchronization unit comprises a connecting and positioning movable block with two sides symmetrically distributed, a gear and two groups of racks which are arranged in the middle of the connecting and positioning movable block and are mutually meshed to realize synchronization;
The rack is provided with a transverse sliding block, the first fixed frame and the cam movable block are respectively provided with a second transverse sliding groove, and the transverse sliding blocks slide in the second transverse sliding grooves to realize synchronization;
The connecting and positioning movable block comprises a connecting arm and a sliding shaft arranged on the connecting arm, sliding grooves are respectively formed in the first rotating frame and the second rotating frame, and the sliding shaft slides in the sliding grooves in a reciprocating mode to achieve synchronization.
Particularly, the connecting and positioning movable block comprises a connecting shaft, the cam movable block is fixed on the connecting shaft, the cam movable block is provided with a concave wheel gasket in a matched manner for realizing running fit, and the cam of the cam movable block is matched with a concave wheel of the concave wheel gasket to realize clamping point support under the states of 0 degree and 180 degrees.
Particularly, a spring for realizing elasticity and torsion is arranged on the connecting shaft, and a flat plate gasket for realizing connection and positioning and a C-shaped gasket for fixing and preventing loosening are arranged on the outer side of the spring.
In particular, the structure main body further comprises a rotating shaft cover, and the two sides of the rotating shaft cover are provided with a shell for realizing connection and positioning.
Particularly, a backing plate for realizing connection positioning and keeping flatness is arranged between the straight groove sliding block and the contact surfaces of the first rotating frame and the second rotating frame.
The invention has the beneficial effects that: the U-shaped internal folding rotating mechanism with four-axis sliding grooves is characterized in that the fixing frame and the rotating frame are provided with the arc-shaped sliding grooves, the rotating frame is provided with the bilateral symmetrically distributed straight sliding grooves, the arc-shaped sliding blocks which are bent and rotated and the straight sliding blocks which are arranged between the rotating frame and the fixing frame form the internal folding rotating mechanism with four-side linkage, the sliding columns slide in the straight sliding grooves and the arc-shaped sliding grooves, and the bending opening and closing of 0-180 degrees are realized through the sliding fit of the straight sliding grooves and the arc-shaped sliding grooves respectively.
Drawings
Fig. 1 is a general view of the structural body of the present invention.
Fig. 2 is a schematic diagram of the motion trail of the present invention.
FIG. 3 is a0 degree state diagram of the spindle of the present invention.
Fig. 4 is a 90 degree state diagram of the spindle of the present invention.
Fig. 5 is a 180 degree state diagram of the spindle of the present invention.
Fig. 6 is a 0 degree state diagram of the rotating mechanism of the present invention.
Fig. 7 is a 90 degree state diagram of the rotating mechanism of the present invention.
Fig. 8 is a 180 degree state diagram of the rotating mechanism of the present invention.
Fig. 9 is a0 degree exploded view of the turning mechanism of the present invention.
Fig. 10 is a 90 degree exploded view of the rotary mechanism of the present invention.
Fig. 11 is an exploded view of the turning mechanism of the present invention in a 180 degree state.
Fig. 12 is a 90 degree partially exploded view of the rotary mechanism of the present invention.
Fig. 13 is one of exploded views of a portion of the rotary mechanism of the present invention.
FIG. 14 is a second partial structural view of the rotating mechanism of the present invention.
FIG. 15 is a third partial block diagram of the rotating mechanism of the present invention.
FIG. 16 is a diagram of a connection positioning movable block structure of the present invention.
FIG. 17 is one of the exploded views of the spindle of the present invention.
FIG. 18 is a second exploded view of the spindle of the present invention.
Fig. 19 is a structural diagram of the structural body of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings of the specification:
example 1:
In this embodiment, as shown in fig. 2, a is the stroke change of the flexible screen in the bending process, B is the relationship between the angle change of the mechanism in the rotating process and the position change of the screen, that is, the sliding constant length means that the relative position between the flexible screen and the rotating mechanism 8 is not changed in the whole bending process, and the track change of the rotating mechanism 8 satisfies the position adjustment in the bending process, so that the constant length of the flexible screen in the bending process is realized.
As shown in fig. 1-19, the U-shaped internal turning mechanism with curved slots disclosed in this embodiment includes a structural main body, the structural main body includes two sets of rotating shafts 1, the rotating shafts 1 include a rotating mechanism 38, the rotating mechanism 38 includes a first fixing frame 2 and a second fixing frame 3 which are longitudinally and parallelly distributed, two sides of the first fixing frame 2 and two sides of the second fixing frame 3 respectively bridge a first rotating frame 4 and a second rotating frame 5, and an arc sliding block 6 and a straight slot sliding block 7 for realizing turning are respectively arranged between the first fixing frame 2 and the first rotating frame 4 and between the first fixing frame 5;
The arc-shaped sliding block 6 is in sliding connection with the first fixing frame 2 and the straight groove sliding block 7, and the first rotating frame 4 and the second rotating frame 5 are respectively in sliding connection with the straight groove sliding block 7 to form a circular stressed inward folding movement track to realize 0-180-degree inward folding rotation; two groups of first arc-shaped sliding grooves 21 which are symmetrically distributed are formed in one side of the upper inner edge of the first fixing frame 2, and the arc-shaped sliding blocks 6 slide in the first arc-shaped sliding grooves 21 in a reciprocating mode;
the first rotating frame 4 and the second rotating frame 5 are respectively provided with a second arc-shaped sliding groove 451 and a linear sliding groove 452, one side edge of the arc-shaped sliding block 6 is provided with symmetrical and respectively sliding columns 61, the straight-groove sliding block 7 is provided with symmetrical and distributed transverse sliding grooves 71 and obliquely distributed straight sliding grooves 72, the sliding columns 61 penetrate through the second arc-shaped sliding grooves 451 and are in sliding connection with the straight sliding grooves 72, namely the linear sliding grooves 452 are in sliding fit with the transverse sliding grooves 71, and the sliding columns 61 are in sliding fit with the second arc-shaped sliding grooves 451 and the straight sliding grooves 72, so that 0-180-degree inward folding rotation of a constant tangential point is realized.
The principle of stress on the motion track of the rotating shaft in the embodiment is as follows:
The first rotating frame 4 and the second rotating frame 5 start to carry out forced bending movement, the force is simultaneously transmitted to the straight groove sliding block 7 through the sliding relation between the second arc sliding groove 451 and the sliding column 61, the straight sliding groove 72 on the straight groove sliding block 7 and the sliding column 61 rotate and carry out force-bearing, the force is simultaneously fed back to the arc sliding block 6, the arc sliding block 6 acts on the first fixed seat 2 relative to the first arc sliding groove 21, the force is simultaneously fed back to the straight groove sliding block 7 through the sliding column 61 by the arc sliding block 6, and the transverse sliding groove 71 of the straight groove moving block 7 and the straight sliding block 452 relatively slide under the force to realize the motion track of bending rotation with unchanged cutting points.
The applicant states that, on the basis of the above examples, the combination of certain steps of the above examples with the technical solutions of the summary section, thus creating a new method, which is also one of the described ranges of the present application, the present application is for brevity of description and no further embodiments of these steps are listed.
In the above embodiment, the second fixing frame 3 is provided with symmetrically distributed rotating columns 31, one side of the outer edge of the straight slot sliding block 7 is provided with a rotating hole 73, and the rotating columns 31 are rotationally connected in the rotating hole 73 to realize connection positioning. A cam movable block 8 is arranged at one side of the outer edge of the first fixing frame 2, a synchronization unit is arranged between the second fixing frame 3 and the cam movable block 8, and the synchronization unit comprises a connecting and positioning movable block 9 with two sides symmetrically distributed, a gear 10 and two groups of racks 11 which are arranged in the middle of the connecting and positioning movable block 9 and mutually meshed to realize synchronization; the rack 11 is provided with a transverse sliding block 112, the first fixed frame 2 and the cam movable block 8 are respectively provided with a second transverse sliding groove 111, and the transverse sliding blocks 112 slide in the second transverse sliding grooves 111 to realize synchronization; the connecting and positioning movable block 9 comprises a connecting arm 91 and a sliding shaft 92 arranged on the connecting arm 91, sliding grooves 93 are respectively formed in the first rotating frame 4 and the second rotating frame 5, and the sliding shaft 92 slides in the sliding grooves 93 in a reciprocating manner to realize synchronization. The connecting and positioning movable block 9 comprises a connecting shaft 94, the cam movable block 8 is fixed on the connecting shaft 94, the cam movable block 8 is provided with a concave wheel gasket 12 which is matched with the connecting shaft in a rotating way, and the cam of the cam movable block 8 is matched with a concave wheel of the concave wheel gasket 12 to realize clamping point support under the states of 0 degree and 180 degrees. The connecting shaft 94 is provided with a spring 13 for realizing elasticity and torsion, and the outer side of the spring 13 is provided with a flat plate gasket 14 for realizing connection and positioning and a C-shaped gasket 15 for fixing and preventing loosening. The structure main body further comprises a rotating shaft cover 16, and a shell 17 for realizing connection and positioning is arranged on two sides of the rotating shaft cover 16. And a backing plate 20 for realizing connection positioning and keeping flatness is arranged between the contact surfaces of the straight groove sliding block 7 and the first rotating frame 4 and the second rotating frame 5.
The applicant has further stated that the present invention is described by the above examples as to the implementation method and apparatus structure of the present invention, but the present invention is not limited to the above embodiments, i.e. it does not mean that the present invention must be implemented by the above methods and structures. It should be apparent to those skilled in the art that any modification of the present invention, equivalent substitutions for the implementation method selected by the present invention, addition of steps, selection of specific modes, etc., fall within the scope of the present invention and the scope of the disclosure.
The technical principle of the embodiment is as follows:
The fixed frame and the rotating frame are provided with arc sliding grooves, the rotating frame is provided with straight sliding grooves which are symmetrically distributed in two sides, an arc sliding block and a straight sliding groove sliding block which are arranged between the rotating frame and the fixed frame and are used for bending and rotating are formed into an inner folding rotating mechanism which is linked around, the inner folding rotating mechanism slides in the straight sliding groove and the arc sliding groove through a sliding column, the bending and the opening and the closing of 0-180 degrees are respectively realized through the sliding fit of the straight sliding groove and the arc sliding groove, the structure design is simple and effective, the application requirements of a flexible screen are met, the resistance torsion effect in the bending of 0-180 degrees and the supporting screen effect in the state of 180 degrees are provided, the application of the flexible screen is met through few components, the inner folding rotating requirements of different requirements can be realized by changing the parameters of the straight sliding groove and the arc sliding groove, and the industrialization implementation is facilitated.
The foregoing description is only illustrative of the preferred embodiments of the invention and is not intended to limit the scope of the invention, so that equivalent changes or modifications to the constructions, features and principles of the invention described herein will be made by those ordinarily skilled in the art without departing from the spirit of the invention.
Claims (6)
1. The utility model provides a U type intussuseption slewing mechanism of four-axis spout which characterized in that: the structure comprises a structure main body, wherein the structure main body comprises two groups of rotating shafts, the rotating shafts comprise rotating mechanisms, the rotating mechanisms comprise a first fixing frame and a second fixing frame which are longitudinally distributed in parallel, and a first rotating frame and a second rotating frame which are respectively bridged with two sides of the first fixing frame and the second fixing frame, and arc-shaped sliding blocks and straight-groove sliding blocks for realizing bending rotation are respectively arranged between the first fixing frame and the first rotating frame and between the first fixing frame and the second rotating frame;
the arc-shaped sliding block is in sliding connection with the first fixing frame and the straight groove sliding block, the first rotating frame and the second rotating frame are respectively in sliding connection with the straight groove sliding block, and an inward folding movement track of cyclic stress is formed to realize 0-180-degree inward folding rotation;
two groups of first arc-shaped sliding grooves which are axially symmetrically distributed are formed in one side of the upper inner edge of the first fixing frame, and the arc-shaped sliding blocks slide in the first arc-shaped sliding grooves in a reciprocating mode;
The first rotating frame and the second rotating frame are respectively provided with a second arc-shaped chute and a linear sliding block, one side of the arc-shaped sliding block is provided with a sliding column, the linear sliding block is provided with a transverse chute and a straight chute which are distributed obliquely, the sliding column penetrates through the second arc-shaped chute and is in sliding connection with the straight chute, namely the linear sliding blocks are in sliding fit in the transverse chute, and the sliding column is in sliding fit in the second arc-shaped chute and the straight chute;
The structural body further includes a swivel cap.
2. The U-fold rotation mechanism of a four-axis chute as in claim 1, wherein:
The second fixing frame is provided with rotating columns which are axisymmetrically distributed with each other, one side of the outer edge of the straight groove sliding block is provided with a rotating hole, and the rotating columns are rotationally connected in the rotating hole to realize connection positioning.
3. The U-fold rotation mechanism of a four-axis chute as in claim 1, wherein:
A cam movable block is arranged at one side of the outer edge of the first fixed frame, a synchronization unit is arranged between the second fixed frame and the cam movable block, the synchronous unit comprises two connecting and positioning movable blocks which are transversely arranged and axisymmetric with each other, and a gear and two groups of racks which are arranged in the middle of the connecting and positioning movable blocks and are mutually meshed to realize synchronization;
The rack is provided with a transverse sliding block, the first fixed frame and the cam movable block are respectively provided with a second transverse sliding groove, and the transverse sliding blocks slide in the second transverse sliding grooves to realize synchronization;
The connecting and positioning movable block comprises a connecting arm and a sliding shaft arranged on the connecting arm, sliding grooves are respectively formed in the first rotating frame and the second rotating frame, and the sliding shaft slides in the sliding grooves in a reciprocating mode to achieve synchronization.
4. A four-axis chute U-fold in-rotation mechanism as in claim 3 wherein:
The connecting and positioning movable block comprises a connecting shaft, the cam movable block is fixed on the connecting shaft, a concave wheel gasket for realizing running fit is arranged on the cam movable block in a matched mode, and the cam of the cam movable block is matched with a concave wheel of the concave wheel gasket to realize clamping point support under the states of 0 degree and 180 degrees.
5. The U-fold rotating mechanism of the four-axis chute according to claim 4, wherein:
the connecting shaft is provided with a spring for realizing elasticity and torsion, and the outer side of the spring is provided with a flat plate gasket for realizing connection and positioning and a C-shaped gasket for fixing and preventing loosening.
6. The U-fold rotation mechanism of a four-axis chute as in claim 1, wherein:
And a backing plate for realizing connection positioning and keeping flatness is arranged between the straight groove sliding block and the contact surface of the first rotating frame and the second rotating frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011234706.6A CN112253612B (en) | 2020-11-07 | 2020-11-07 | U-shaped inner folding mechanism with four-axis sliding groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011234706.6A CN112253612B (en) | 2020-11-07 | 2020-11-07 | U-shaped inner folding mechanism with four-axis sliding groove |
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| Publication Number | Publication Date |
|---|---|
| CN112253612A CN112253612A (en) | 2021-01-22 |
| CN112253612B true CN112253612B (en) | 2024-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011234706.6A Active CN112253612B (en) | 2020-11-07 | 2020-11-07 | U-shaped inner folding mechanism with four-axis sliding groove |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446305B (en) * | 2021-06-25 | 2024-06-04 | 东莞市劲丰电子有限公司 | Transverse and longitudinal bending integrated rotating mechanism |
| TWI815414B (en) * | 2021-08-24 | 2023-09-11 | 仁寶電腦工業股份有限公司 | Foldable electronic device |
| CN114726940B (en) * | 2022-06-06 | 2022-09-09 | 东莞市劲丰电子有限公司 | Lateral movement type bending hinge of flexible screen folding mobile phone |
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Address after: No. 2, Shangli Road, Shipai Town, Dongguan City, Guangdong Province, 523000 Applicant after: DONGGUAN JINFENG ELECTRONIC Co.,Ltd. Address before: 523000 Puxin Industrial Zone, Shipai Town, Dongguan City, Guangdong Province Applicant before: DONGGUAN JINFENG ELECTRONIC Co.,Ltd. |
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