CN112412961A - Arc inward-folding rotating mechanism with unchanged tangent point - Google Patents
Arc inward-folding rotating mechanism with unchanged tangent point Download PDFInfo
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- CN112412961A CN112412961A CN202011336490.4A CN202011336490A CN112412961A CN 112412961 A CN112412961 A CN 112412961A CN 202011336490 A CN202011336490 A CN 202011336490A CN 112412961 A CN112412961 A CN 112412961A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 56
- 238000005452 bending Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 10
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 5
- 230000003993 interaction Effects 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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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
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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
- F16C11/10—Arrangements for locking
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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
- F16C11/12—Pivotal connections incorporating flexible connections, e.g. leaf springs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
- G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
- H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Transmission Devices (AREA)
- Telephone Set Structure (AREA)
Abstract
The invention discloses an arc inward-bending rotating mechanism with a constant tangent point, which comprises a rotating shaft, wherein the rotating shaft comprises a rotating mechanism, the rotating mechanism comprises two groups of rotating frames which are transversely distributed, an arc groove movable block and two groups of arc sliding blocks which are longitudinally distributed and rotationally connected are arranged between the rotating frames, arc sliding grooves which are in sliding connection with the arc sliding blocks are respectively arranged on two sides of the arc groove movable block, and the arc sliding blocks slide in the arc sliding grooves in a reciprocating manner to realize the U-shaped inward-bending rotation with the constant tangent point of a 0-180-degree motion track; the rotating frame and the arc groove movable block realize rotation through sliding fit of a sliding column and the curve groove; the rotating frame is provided with a rotating hole, the arc sliding block is provided with a rotating column, and the rotating frame is rotatably connected with the arc sliding block through the rotating matching of the rotating column and the rotating hole.
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 an arc inward folding rotating mechanism with a constant tangent point.
Background
At present, no matter be flat board, cell-phone or other take the electronic product of display screen, all be in the direction development to flexible screen, in the development of this technical field, the transition product that appears similar flexible screen function also is indispensable, so-called transition product is exactly that to realize that the double screen is folding, fold the effect through the double screen folding whole screen that reaches, at the in-process of buckling, do not have obvious breaching, wholly give the folding result of use of whole screen, test or feedback out the attitude that the consumer used to the screen is folded through this kind of mode.
To realize the technical effects, the biggest technical problem is directly transferred to the design technology of the rotating shaft from the design of the screen, how to realize the inward folding needs a special rotating mechanism, the possibility of rotating and folding is considered, the effectiveness of bilateral connection is further considered, and especially the problem of synchronous bending needs to be met.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an arc inward-folding rotating mechanism with a constant tangent point.
In order to achieve the purpose, the invention adopts the following technical scheme:
the arc inward-bending rotating mechanism with the constant tangent point comprises a rotating shaft, wherein the rotating shaft comprises a rotating mechanism, the rotating mechanism comprises two groups of rotating frames which are transversely distributed, an arc groove movable block and two groups of arc sliding blocks which are longitudinally distributed and rotationally connected are arranged between the rotating frames, arc sliding grooves which are in sliding connection with the arc sliding blocks are respectively arranged on two sides of the arc groove movable block, and the arc sliding blocks slide in the arc sliding grooves in a reciprocating manner to realize the U-shaped inward-bending rotation with the constant tangent point of a motion track of 0-180 degrees;
the rotating frame and the arc groove movable block realize rotation through sliding fit of a sliding column and the curve groove;
the rotating frame is provided with a rotating hole, the arc sliding block is provided with a rotating column, and the rotating frame is rotatably connected with the arc sliding block through the rotating matching of the rotating column and the rotating hole.
Particularly, the rotating shaft further comprises a connecting and positioning movable block and gear shafts which are symmetrical at two sides, gears are arranged between the gear shafts, and the gear shafts and the gears are respectively meshed to realize synchronous rotation;
a plurality of groups of connecting holes are formed in the outer side of the connecting and positioning movable block, connecting columns are respectively arranged at one ends of the gear shaft and one end of the gear, and the connecting columns are connected with the connecting holes to realize the connecting and positioning of the gear shaft and the gear with the connecting and positioning movable block;
the gear shaft is provided with a connecting arm, the outer end of the connecting arm is provided with a third sliding column, the rotating frame is provided with a transverse sliding groove, and the third sliding column slides in the transverse sliding groove to realize synchronous rotation.
Particularly, the gear shaft is connected with a concave wheel connecting plate, the concave wheel connecting plate and a cam on the gear shaft are matched in a concave-convex mode to achieve clamping point positioning and meet the supporting screen effect in a 180-degree state, a fixing frame is arranged between the concave wheel connecting plate and the gear shaft, springs for achieving elasticity and torsion are arranged between the fixing frame and the gear shaft respectively, and end face fixing frames for fixedly packaging the springs are arranged at the outer ends of the springs.
Particularly, the curve groove is arranged on the rotating frame, and the sliding column is arranged on the arc groove movable block.
Particularly, the curve groove is arranged on the arc groove movable block, and the sliding column is arranged on the rotating frame.
Particularly, the curved groove is arranged on one side of the back of the arc sliding block, the rotating shaft comprises two groups of balance wheels provided with sliding columns, the sliding columns are in sliding fit with the curved groove to keep the tangent points unchanged in the process of rotating by 0-180 degrees, and therefore the U-shaped inward-bending rotation with interaction of the inclined grooves and auxiliary rotation of the balance wheels is formed.
Particularly, the structure main body further comprises a rotating shaft cover, and the two sides of the rotating shaft cover are provided with a machine shell for realizing connection and positioning.
The invention has the beneficial effects that: the arc inward-bending rotating mechanism with the constant tangent point provided by the invention realizes the U-shaped inward-bending rotation with the constant tangent point of the 0-180-degree motion track through the reciprocating sliding of the arc sliding block in the arc sliding chute, realizes the rotation through the matching of the curve groove and the rotating column, can flexibly allocate the distribution positions of the curve groove and the rotating column, can be freely arranged on the rotating frame or the arc groove moving block, can directly design the curve groove on the arc sliding block, can realize the constant tangent point in the 0-180-degree rotation process only by adding two groups of balance wheels with the sliding columns, forms the U-shaped inward-bending rotation with the interaction of the arc sliding groove and the arc sliding block and the auxiliary rotation of the balance wheels, has simple and effective overall structural design, meets the application requirement of a flexible screen, provides the resistance torsion action of 0-180-degree bending and the lower supporting screen action of 180-degree, and meets the application of the flexible screen through few components, is convenient for industrial implementation.
Drawings
FIG. 1 is an overall view of the main structure of the present invention.
Fig. 2 is a schematic diagram of the motion trajectory of the present invention.
Fig. 3 is a 90 degree state view of the spindle of the present invention.
Fig. 4 is a 180 degree state diagram of the present invention.
FIG. 5 is a 0 degree state diagram of the spindle of the present invention.
Fig. 6 is an exploded view of the spindle of the present invention.
FIG. 7 is a second exploded view of the spindle of the present invention.
FIG. 8 is a third exploded view of the hinge of the present invention.
FIG. 9 is a 0 degree component structure of the rotary mechanism of the present invention.
FIG. 10 is a 0 degree exploded view of the pivoting mechanism of the present invention.
Fig. 11 is a 90-degree component structure diagram of the rotating mechanism of the present invention.
Fig. 12 is a 90 degree exploded view of one of the rotating mechanisms of the present invention.
FIG. 13 is a 180 degree component structure of the rotating mechanism of the present invention.
Fig. 14 is a 180 degree exploded view of one of the motion mechanisms of the present invention.
FIG. 15 is a two-0 degree component structure of the rotary mechanism of the present invention.
FIG. 16 is a two-0 degree exploded view of the rotary mechanism of the present invention.
FIG. 17 is a two-90 degree component structure of the rotary mechanism of the present invention.
FIG. 18 is a two 90 degree exploded view of the pivoting mechanism of the present invention.
FIG. 19 is a two 180 degree component structure of the rotation mechanism of the present invention.
FIG. 20 is a two 180 degree exploded view of the motion mechanism of the present invention.
FIG. 21 is a three-0 degree component structure of the rotary mechanism of the present invention.
FIG. 22 is a three-0 degree exploded view of the pivoting mechanism of the present invention.
FIG. 23 is a three-90 degree component structure of the turning mechanism of the present invention.
FIG. 24 is a three 90 degree exploded view of the pivoting mechanism of the present invention.
FIG. 25 is a three-180 degree component structure of the turning mechanism of the present invention.
Fig. 26 is an exploded view of the third 180 degrees of the motion mechanism of the present invention.
Fig. 27 is a schematic view of the overall structure of the present invention.
Fig. 28 is a gear shaft structural view of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
in the following embodiments, as shown in fig. 2, a is a stroke change of the flexible screen in the bending process, and B is a relationship between an angle change of the mechanism in the rotation process and a position change of the screen, that is, the constant length of sliding means that the relative position of the flexible screen and the rotating shaft 1 is not changed in the whole bending process, and the position adjustment in the bending process is satisfied through the mechanism change, so that the constant length of the flexible screen is not changed in the bending process.
Example 1:
as shown in fig. 9 to 14, the arc inward-bending rotation mechanism with a constant tangent point disclosed in this embodiment includes a rotation shaft 1, the rotation shaft 1 includes a rotation mechanism 2, the rotation mechanism 2 includes two groups of rotation frames 3 distributed transversely, an arc groove movable block 4 and two groups of arc sliders 5 are disposed between the rotation frames 3, the arc groove movable block 4 and the arc sliders 5 are longitudinally distributed and rotationally connected, arc chutes 41 slidably connected to the arc sliders 5 are respectively disposed on two sides of the arc groove movable block 4, and the arc sliders 5 slide in the arc chutes 41 in a reciprocating manner to realize U-shaped inward-bending rotation with a constant tangent point of a motion trajectory of 0-180 degrees;
the rotating frame 3 and the arc groove movable block 4 are in sliding fit with each other through a sliding column 6 and a curved groove 7 to realize rotation; the rotating frame 3 is provided with a rotating hole 31, the arc sliding block 5 is provided with a rotating column 51, and the rotating frame 3 and the arc sliding block 5 are rotatably connected through the rotating matching of the rotating column 51 and the rotating hole 31. The curved groove 7 is arranged on the rotating frame 3, and the sliding column 6 is arranged on the arc groove movable block 4.
Example 2:
as shown in fig. 15-20, the arc inward-bending rotation mechanism with a constant tangent point disclosed in this embodiment includes a rotation shaft 1, the rotation shaft 1 includes a rotation mechanism 2, the rotation mechanism 2 includes two groups of rotation frames 3 distributed transversely, an arc groove movable block 4 and two groups of arc sliders 5 are disposed between the rotation frames 3, the arc groove movable block 4 and the arc sliders 5 are longitudinally distributed and rotationally connected, arc chutes 41 slidably connected to the arc sliders 5 are respectively disposed on two sides of the arc groove movable block 4, and the arc sliders 5 slide in the arc chutes 41 in a reciprocating manner to realize U-shaped inward-bending rotation with a constant tangent point of a motion trajectory of 0-180 degrees;
the rotating frame 3 and the arc groove movable block 4 are in sliding fit with each other through a sliding column 6 and a curved groove 7 to realize rotation; the rotating frame 3 is provided with a rotating hole 31, the arc sliding block 5 is provided with a rotating column 51, and the rotating frame 3 and the arc sliding block 5 are rotatably connected through the rotating matching of the rotating column 51 and the rotating hole 31. The curved groove 7 is arranged on the arc groove movable block 4, and the sliding column 6 is arranged on the rotating frame 3.
Example 3:
as shown in fig. 20 to 26, the arc inward-bending rotation mechanism with a constant tangent point disclosed in this embodiment includes a rotation shaft 1, the rotation shaft 1 includes a rotation mechanism 2, the rotation mechanism 2 includes two groups of rotation frames 3 distributed transversely, an arc groove movable block 4 and two groups of arc sliders 5 are disposed between the rotation frames 3, the arc groove movable block 4 and the arc sliders 5 are longitudinally distributed and rotationally connected, arc chutes 41 slidably connected to the arc sliders 5 are respectively disposed on two sides of the arc groove movable block 4, and the arc sliders 5 slide in the arc chutes 41 in a reciprocating manner to realize U-shaped inward-bending rotation with a constant tangent point of a motion trajectory of 0-180 degrees;
the rotating frame 3 and the arc groove movable block 4 are in sliding fit with each other through a sliding column 6 and a curved groove 7 to realize rotation; the rotating frame 3 is provided with a rotating hole 31, the arc sliding block 5 is provided with a rotating column 51, and the rotating frame 3 and the arc sliding block 5 are rotatably connected through the rotating matching of the rotating column 51 and the rotating hole 31. The curved groove 7 is arranged on one side of the back of the arc sliding block 5, the rotating shaft 1 comprises two groups of balance wheels 8 provided with sliding columns 6, the sliding columns 6 are in sliding fit with the curved groove 7 to keep the tangent points unchanged in the 0-180-degree rotation process, and a U-shaped inward-bending rotation mode is formed in which the arc sliding groove 41 interacts with the arc sliding block 5 and the balance wheels 8 rotate in an auxiliary mode.
The applicant states that a new method, which is generated by combining some steps of the above-mentioned embodiment with the technical solution of the summary part of the invention based on the above-mentioned embodiment, is also one of the description scope of the present invention, and other embodiments of these steps are not listed in the present application for the sake of brevity.
As shown in fig. 1-8, 27 and 28, in the above embodiment, the rotating shaft 1 further includes a connecting and positioning movable block 9 and two symmetrical gear shafts 10, a gear 11 is disposed between the gear shafts 10, and the gear shafts 10 and the gear 11 are respectively engaged to realize synchronous rotation; a plurality of groups of connecting holes 91 are formed in the outer side of the connecting and positioning movable block 9, connecting columns 92 are respectively formed in one ends of the gear shaft 10 and one end of the gear 11, and the connecting columns 92 are connected with the connecting holes 91 to realize the connecting and positioning of the gear shaft 10 and the gear 11 with the connecting and positioning movable block 9; the gear shaft 10 is provided with a connecting arm 101, the outer end of the connecting arm 101 is provided with a third sliding column 102, the rotating frame 3 is provided with a transverse sliding groove 32, and the third sliding column 102 slides in the transverse sliding groove 32 to realize synchronous rotation. The gear shaft 10 is connected and is provided with a concave wheel connecting plate 12, the concave wheel connecting plate 12 and a cam 103 on the gear shaft 10 are matched in a concave-convex mode to realize clamping point positioning and meet the 180-degree state supporting screen effect, a fixing frame 13 is arranged between the concave wheel connecting plate 12 and the gear shaft 10, a spring 14 for realizing elasticity and torsion is arranged between the fixing frame 13 and the gear shaft 10, and an end face fixing frame 15 for fixedly packaging the spring 14 is arranged at the outer end of the spring 14. The structure main body further comprises a rotating shaft cover 16, and two sides of the rotating shaft cover 16 are provided with a shell 17 for realizing connection and positioning.
The applicant further states that the present invention is described in the above embodiments to explain the implementation method and device structure of the present invention, but the present invention is not limited to the above embodiments, i.e. it is not meant to imply that the present invention must rely on the above methods and structures to implement the present invention. It should be understood by those skilled in the art that any modifications to the present invention, the addition of equivalent alternatives to the embodiments of the present invention and steps, the selection of specific modes, etc., are within the scope of the present invention and the disclosure.
The technical principle of the embodiment is as follows:
the U-shaped inward-bending rotation with the constant tangent point of the 0-180-degree motion track is realized by the reciprocating sliding of the arc sliding block 5 in the sliding chute of the arc sliding chute 41, the rotation is realized by the matching of the curve chute 7 and the rotating column 51, the distribution positions of the curve chute 7 and the rotating column 51 can be flexibly adjusted and can be randomly arranged on the rotating frame 3 or the arc chute movable block 4, the curve chute 7 can be directly designed on the arc sliding block 5, the constant tangent point can be kept in the 0-180-degree rotating process only by adding two groups of balance wheels with the sliding column 6, the U-shaped inward-bending rotation with the interaction of the arc sliding chute 41 and the arc sliding block 5 and the auxiliary rotation of the balance wheels is formed, the whole structure design is simple and effective, the application requirement of the flexible screen is met, the resistance torsion action of the 0-180-degree bending and the supporting screen action in the 180-degree state are provided, the application of the flexible screen is, is convenient for industrial implementation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, so that the equivalent changes or modifications of the structure, features and principles of the present invention by those skilled in the art should fall within the protection scope of the present invention.
Claims (7)
1. The circular arc internal-folding rotating mechanism with the invariant tangent point is characterized in that: the device comprises a rotating shaft, wherein the rotating shaft comprises a rotating mechanism, the rotating mechanism comprises two groups of rotating frames which are transversely distributed, an arc groove movable block and two groups of arc sliding blocks which are longitudinally distributed and rotationally connected are arranged between the rotating frames, arc sliding grooves which are slidably connected with the arc sliding blocks are respectively arranged on two sides of the arc groove movable block, and the arc sliding blocks slide in the arc sliding grooves in a reciprocating manner to realize the U-shaped inward-bending rotation with the tangent point of the motion track of 0-180 degrees unchanged;
the rotating frame and the arc groove movable block realize rotation through sliding fit of a sliding column and the curve groove;
the rotating frame is provided with a rotating hole, the arc sliding block is provided with a rotating column, and the rotating frame is rotatably connected with the arc sliding block through the rotating matching of the rotating column and the rotating hole.
2. The mechanism of claim 1, wherein the arc inward-turning mechanism with constant tangent point comprises:
the rotating shaft also comprises a connecting and positioning movable block and gear shafts which are symmetrical at two sides, gears are arranged between the gear shafts, and the gear shafts and the gears are respectively meshed to realize synchronous rotation;
a plurality of groups of connecting holes are formed in the outer side of the connecting and positioning movable block, connecting columns are respectively arranged at one ends of the gear shaft and one end of the gear, and the connecting columns are connected with the connecting holes to realize the connecting and positioning of the gear shaft and the gear with the connecting and positioning movable block;
the gear shaft is provided with a connecting arm, the outer end of the connecting arm is provided with a third sliding column, the rotating frame is provided with a transverse sliding groove, and the third sliding column slides in the transverse sliding groove to realize synchronous rotation.
3. The mechanism of claim 2, wherein the arc inward-turning mechanism with constant tangent point comprises:
the gear shaft is connected with a concave wheel connecting plate, the concave wheel connecting plate and a cam on the gear shaft are matched in a concave-convex mode to achieve clamping point positioning and meet 180-degree supporting screen effect, a fixing frame is arranged between the concave wheel connecting plate and the gear shaft, springs for achieving elasticity and torsion are arranged between the fixing frame and the gear shaft respectively, and the outer ends of the springs are provided with end face fixing frames for fixedly packaging the springs.
4. The mechanism of claim 1, wherein the arc inward-turning mechanism with constant tangent point comprises:
the curve groove is arranged on the rotating frame, and the sliding column is arranged on the arc groove movable block.
5. The mechanism of claim 1, wherein the arc inward-turning mechanism with constant tangent point comprises:
the curve groove is arranged on the arc groove movable block, and the sliding column is arranged on the rotating frame.
6. The mechanism of claim 1, wherein the arc inward-turning mechanism with constant tangent point comprises:
the curved groove is arranged on one side of the back of the arc sliding block, the rotating shaft comprises two groups of balance wheels provided with sliding columns, the sliding columns are in sliding fit with the curved groove to keep the tangent points unchanged in the 0-180-degree rotation process, and therefore the U-shaped inward-bending rotation with the interaction of the inclined grooves and the auxiliary rotation of the balance wheels is formed.
7. The mechanism of claim 1, wherein the arc inward-turning mechanism with constant tangent point comprises:
the structure main body further comprises a rotating shaft cover, and the two sides of the rotating shaft cover are provided with casings for realizing connection and positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011336490.4A CN112412961B (en) | 2020-11-23 | 2020-11-23 | Arc inner turning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011336490.4A CN112412961B (en) | 2020-11-23 | 2020-11-23 | Arc inner turning mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112412961A true CN112412961A (en) | 2021-02-26 |
| CN112412961B CN112412961B (en) | 2024-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011336490.4A Active CN112412961B (en) | 2020-11-23 | 2020-11-23 | Arc inner turning mechanism |
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| CN (1) | CN112412961B (en) |
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