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CN112253612A - U-shaped inward-folding rotating mechanism with four-shaft sliding grooves - Google Patents

U-shaped inward-folding rotating mechanism with four-shaft sliding grooves Download PDF

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Publication number
CN112253612A
CN112253612A CN202011234706.6A CN202011234706A CN112253612A CN 112253612 A CN112253612 A CN 112253612A CN 202011234706 A CN202011234706 A CN 202011234706A CN 112253612 A CN112253612 A CN 112253612A
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China
Prior art keywords
sliding
rotating
frame
shaped
arc
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Granted
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CN202011234706.6A
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Chinese (zh)
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CN112253612B (en
Inventor
文秀江
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Dongguan Jinfeng Electronics Co Ltd
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Dongguan Jinfeng Electronics Co Ltd
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Priority to CN202011234706.6A priority Critical patent/CN112253612B/en
Publication of CN112253612A publication Critical patent/CN112253612A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • F16C11/045Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • F16C11/12Pivotal 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 inward-folding rotating mechanism of a four-axis sliding chute, which comprises a structure main body, wherein the structure 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 the first fixing frame and the second fixing frame, and an arc-shaped sliding block and a straight-groove sliding block which are used for realizing bending rotation are respectively arranged between the first fixing frame and the first rotating frame as well as 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, and the first rotating frame and the second rotating frame are in sliding connection with the straight groove sliding block respectively to form an inward-folding motion track of cyclic stress to realize 0-180-degree inward-folding rotation.

Description

U-shaped inward-folding rotating mechanism with four-shaft sliding grooves
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 of a four-shaft sliding chute.
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 a U-shaped inward-folding rotating mechanism with a four-shaft sliding chute.
In order to achieve the purpose, the invention adopts the following technical scheme:
a U-shaped inward-folding rotating mechanism with four-axis sliding grooves comprises a structure main body, wherein the structure 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 the first fixing frame and the second fixing frame, and an arc-shaped sliding block and a straight groove sliding block which are used for realizing bending rotation are respectively arranged between the first fixing frame and the first rotating frame as well as between the first fixing frame and the second rotating frame;
the arc-shaped sliding block is connected with the first fixing frame and the straight groove sliding block in a sliding mode, and the first rotating frame and the second rotating frame are connected with the straight groove sliding block in a sliding mode respectively to form a circular stressed inward-folding motion track to achieve inward-folding rotation of 0-180 degrees;
two groups of first arc-shaped sliding grooves which are symmetrically distributed are formed in one side of the 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 sliding groove and a linear sliding block, one side edge of the arc-shaped sliding block is provided with a sliding column with respective symmetry, the linear sliding block is provided with a transverse sliding groove with symmetrical distribution and a straight sliding groove with inclined distribution, the sliding column penetrates through the second arc-shaped sliding groove and is in sliding connection with the straight sliding groove, namely the linear sliding block is in sliding fit in the transverse sliding groove, and the sliding column is in sliding fit in the second arc-shaped sliding groove and the straight sliding groove, so that 0-180-degree inward-folding rotation of an invariant tangent point is realized jointly.
Particularly, the second fixing frame is provided with symmetrically distributed rotating columns, a rotating hole is formed in one side of the upper outer edge of the straight groove sliding block, and the rotating columns are rotatably connected in the rotating hole to achieve connection and positioning.
Particularly, a cam movable block is arranged on one side of the outer side of the first fixed frame, a synchronization unit is arranged between the second fixed frame and the cam movable block, and the synchronization unit comprises connecting and positioning movable blocks which are symmetrically distributed on two sides, and a gear and two groups of racks which are arranged in the middle of the connecting and positioning movable blocks and are meshed with each other 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 block slides in the second transverse sliding groove 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, a concave wheel gasket which is matched with the cam movable block and is matched with the cam movable block to realize running fit is arranged on the cam movable block, and the cam of the cam movable block is matched with the concave wheel of the concave wheel gasket to realize clamping point support under the states of 0 degree and 180 degrees.
Particularly, 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 gasket for realizing connection and positioning and a C-shaped gasket for fixing and preventing loosening.
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.
Particularly, a base 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 inward-folding rotating mechanism with the four-shaft sliding grooves is characterized in that arc-shaped sliding grooves are formed in a fixed frame and a rotating frame, straight sliding grooves are symmetrically distributed on two sides of the rotating frame, arc-shaped sliding blocks and straight groove sliding blocks which are operated in a bending and rotating mode are arranged between the rotating frame and the fixed frame to form an inward-folding rotating mechanism which is linked around, sliding columns slide in the straight sliding grooves and the arc-shaped sliding grooves, and bending opening and closing of 0-180 degrees are achieved through sliding matching of the straight sliding grooves and the arc-shaped sliding grooves respectively.
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 0 degree state diagram of the spindle of the present invention.
Fig. 4 is a 90 degree state view of the spindle of the present invention.
FIG. 5 is a 180 degree view 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 rotation mechanism of the present invention.
Fig. 9 is an exploded view of the rotating mechanism of the present invention at 0 degree.
Fig. 10 is an exploded view of the rotation mechanism of the present invention at 90 degrees.
Fig. 11 is an exploded view of the rotational mechanism of the present invention at 180 degrees.
Fig. 12 is an exploded view of the 90 degree partial state of the rotating mechanism of the present invention.
Fig. 13 is one of the exploded views of the rotating mechanism of the present invention.
FIG. 14 is a second view showing a partial structure of a rotating mechanism according to the present invention.
FIG. 15 is a third view of a structure of a part of a rotating mechanism according to the present invention.
FIG. 16 is a diagram of a connecting and positioning movable block according to 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 hinge of the present invention.
FIG. 19 is a view showing a constitution of a main body of the structure of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example 1:
in this embodiment, 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 between the flexible screen and the rotating mechanism 8 is not changed in the whole bending process, and the change of the track of the rotating mechanism 8 satisfies the position adjustment in the bending process, so that the constant length of the flexible screen is not changed in the bending process.
As shown in fig. 1 to 19, the U-shaped inward-folding turning mechanism with a curved groove bending disclosed in this embodiment includes a main structure body, the main structure body includes two sets of rotating shafts 1, each rotating shaft 1 includes a turning mechanism 38, each turning mechanism 38 includes a first fixing frame 2 and a second fixing frame 3 longitudinally distributed in parallel, two sides of each first fixing frame 2 and each second fixing frame 3 are respectively bridged with a first turning frame 4 and a second turning frame 5, and an arc-shaped sliding block 6 and a straight groove sliding block 7 for realizing bending rotation are respectively arranged between each first fixing frame 2 and each first turning frame 4, and between each second turning frame 5;
the arc-shaped sliding block 6 is connected with the first fixing frame 2 and the straight groove sliding block 7 in a sliding manner, and the first rotating frame 4 and the second rotating frame 5 are respectively connected with the straight groove sliding block 7 in a sliding manner to form a circular stressed inward-folding motion 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 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;
be equipped with second arc spout 451 and sharp slider 452 on first rotating turret 4 and the second rotating turret 5 respectively, a side of arc slider 6 is equipped with symmetry respectively slip post 61, be equipped with the horizontal spout 71 and the straight spout 72 of slant distribution of symmetric distribution on the straight flute slider 7, slip post 61 passes second arc spout 451 and with straight spout 72 sliding connection, promptly sharp slider 452 is in slide fit in horizontal spout 71, slip post 61 is in slide fit in second arc spout 451 and straight spout 72 realizes the 0 degree-180 degree infolding rotation of unchangeable tangent point jointly.
The principle of the motion trail of the rotating shaft in the embodiment is as follows:
first rotating turret 4 and second rotating turret 5 atress bending motion begin, give straight flute sliding block 7 with the effect of force transmission simultaneously through the slip relation of second arc spout 451 and slip post 61, and straight spout 72 on the straight flute sliding block 7 feeds back the effect of force to arc sliding block 6 with slip post 61 rotation atress simultaneously, arc sliding block 6 acts on first fixing base 2 for first arc spout 21, the atress feeds back the effect of force to straight flute sliding block 7 through slip post 61 through arc sliding block 6 simultaneously, the horizontal spout 71 of straight flute movable block 7 and the relative slip realization circulation atress of straight flute movable block 452 atress realize the unchangeable bending movement orbit of turning of tangent point.
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.
In the above embodiment, the second fixing frame 3 is provided with the rotating columns 31 symmetrically distributed, the upper outer side of the straight-groove sliding block 7 is provided with the rotating holes 73, and the rotating columns 31 are rotatably connected in the rotating holes 73 to realize connection and positioning. A cam movable block 8 is arranged on one side of the outer side of the first fixed frame 2, a synchronization unit is arranged between the second fixed frame 3 and the cam movable block 8, and the synchronization unit comprises connecting and positioning movable blocks 9 which are symmetrically distributed on two sides, and a gear 10 and two groups of racks 11 which are arranged in the middle of the connecting and positioning movable blocks 9 and are meshed with each other to realize synchronization; a transverse sliding block 112 is arranged on the rack 11, a second transverse sliding groove 111 is respectively arranged on the first fixed frame 2 and the cam movable block 8, and the transverse sliding block 112 slides in the second transverse sliding groove 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 arranged on 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. Connect location movable block 9 and include connecting axle 94, the cam movable block 8 is fixed on the connecting axle 94, just the cam movable block 8 is supporting to be equipped with and realizes the concave wheel gasket 12 of normal running fit, the cam of cam movable block 8 with the concave wheel cooperation of concave wheel gasket 12 realizes that the stuck point supports under 0 degree, the 180 degree state. The connecting shaft 94 is provided with a spring 13 for realizing elasticity and torsion, and a flat gasket 14 for realizing connection and positioning and a C-shaped gasket 15 for fixing and preventing loosening are arranged outside the spring 13. 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. And a base plate 20 for realizing connection positioning and keeping flatness is arranged between the straight groove sliding block 7 and the contact surfaces of the first rotating frame 4 and the second rotating frame 5.
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 flexible screen is simple and effective in structural design, the flexible screen application requirements are met, a resistance torsion effect in 0-180-degree bending and a 180-degree supporting screen effect in 180-degree bending are provided, the flexible screen application is met through few components, the inward-bending rotation requirements with different requirements can be met by changing parameters of the straight sliding grooves and the arc sliding grooves, and the industrial implementation is facilitated.
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 utility model provides a U type infolding slewing mechanism of four-axis spout which characterized in that: the bending and rotating mechanism comprises a structure main body, wherein the structure 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 the first fixing frame and the second fixing frame, and an arc-shaped sliding block and a straight groove sliding block which are used for realizing bending and rotating are respectively arranged between the first fixing frame and the first rotating frame as well as between the first fixing frame and the second rotating frame;
the arc-shaped sliding block is connected with the first fixing frame and the straight groove sliding block in a sliding mode, and the first rotating frame and the second rotating frame are connected with the straight groove sliding block in a sliding mode respectively to form a circular stressed inward-folding motion track to achieve inward-folding rotation of 0-180 degrees;
two groups of first arc-shaped sliding grooves which are symmetrically distributed are formed in one side of the 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 sliding groove and a linear sliding block, one side edge of the arc-shaped sliding block is provided with a sliding column with respective symmetry, the linear sliding block is provided with a transverse sliding groove with symmetrical distribution and a straight sliding groove with inclined distribution, the sliding column penetrates through the second arc-shaped sliding groove and is in sliding connection with the straight sliding groove, namely the linear sliding block is in sliding fit in the transverse sliding groove, and the sliding column is in sliding fit in the second arc-shaped sliding groove and the straight sliding groove, so that 0-180-degree inward-folding rotation of an invariant tangent point is realized jointly.
2. The U-shaped inward-folding rotating mechanism of the four-shaft sliding chute according to claim 1, characterized in that:
the second fixing frame is provided with rotating columns which are symmetrically distributed, a rotating hole is formed in one side of the upper outer edge of the straight groove sliding block, and the rotating columns are rotatably connected in the rotating hole to achieve connection and positioning.
3. The U-shaped inward-folding rotating mechanism of the four-shaft sliding chute according to claim 1, characterized in that:
a cam movable block is arranged on one side of the outer side of the first fixed frame, a synchronization unit is arranged between the second fixed frame and the cam movable block, and the synchronization unit comprises connecting and positioning movable blocks which are symmetrically distributed on two sides, and a gear and two groups of racks which are arranged in the middle of the connecting and positioning movable blocks and are meshed with each other 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 block slides in the second transverse sliding groove 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. The U-shaped inward-folding rotating mechanism of the four-shaft sliding chute according to claim 3, wherein:
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 matched with a concave wheel gasket for realizing running fit, and the cam of the cam movable block is matched with the concave wheel of the concave wheel gasket to realize the clamping point support in the states of 0 degree and 180 degrees.
5. The U-shaped inward-folding rotating mechanism of the four-shaft sliding 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 gasket for realizing connection and positioning and a C-shaped gasket for fixing and preventing loosening.
6. The U-shaped inward-folding rotating mechanism of the four-shaft sliding chute according to claim 1, characterized in that:
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.
7. The U-shaped inward-folding rotating mechanism of the four-shaft sliding chute according to claim 1, characterized in that:
and a base 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.
CN202011234706.6A 2020-11-07 2020-11-07 U-shaped inner folding mechanism with four-axis sliding groove Active CN112253612B (en)

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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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Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
CN113446305A (en) * 2021-06-25 2021-09-28 东莞市劲丰电子有限公司 Transverse and longitudinal bending integrated rotating mechanism
CN114726940A (en) * 2022-06-06 2022-07-08 东莞市劲丰电子有限公司 Lateral movement type bending hinge of flexible screen folding mobile phone
TWI815414B (en) * 2021-08-24 2023-09-11 仁寶電腦工業股份有限公司 Foldable electronic device
WO2024174324A1 (en) * 2023-02-23 2024-08-29 武汉华星光电半导体显示技术有限公司 Hinge and foldable display device

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Publication number Priority date Publication date Assignee Title
CN113446305A (en) * 2021-06-25 2021-09-28 东莞市劲丰电子有限公司 Transverse and longitudinal bending integrated rotating mechanism
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
CN114726940A (en) * 2022-06-06 2022-07-08 东莞市劲丰电子有限公司 Lateral movement type bending hinge of flexible screen folding mobile phone
WO2024174324A1 (en) * 2023-02-23 2024-08-29 武汉华星光电半导体显示技术有限公司 Hinge and foldable display device

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