CN210954507U - Connecting rod spring mechanism for turning mirror bracket - Google Patents
Connecting rod spring mechanism for turning mirror bracket Download PDFInfo
- Publication number
- CN210954507U CN210954507U CN201922388073.3U CN201922388073U CN210954507U CN 210954507 U CN210954507 U CN 210954507U CN 201922388073 U CN201922388073 U CN 201922388073U CN 210954507 U CN210954507 U CN 210954507U
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- connecting rod
- pin shaft
- straight plate
- pin
- spring mechanism
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Abstract
The utility model discloses a connecting rod spring mechanism for overturning a mirror bracket, which comprises a connecting rod, a first connecting rod, a second connecting rod, a fourth connecting rod and a third connecting rod which are sequentially connected into a closed loop through pin shafts, wherein one end of the fourth connecting rod is hinged with one end of the third connecting rod through a third pin shaft, the other end of the third pin shaft is provided with an extension head fixed with the bridge of the nose of a glasses, the second connecting rod is hinged with the fourth connecting rod through a fourth pin shaft, and the fourth pin shaft is positioned between the third pin shaft and the extension head; the length of the second connecting rod is greater than that of the third connecting rod; the second connecting rod and the third connecting rod are respectively hinged with two ends of the first connecting rod through a first pin shaft and a second pin shaft, and the first connecting rod is fixed with a spectacle frame ring; and the torsional spring is sleeved on the first pin shaft and applies elastic potential energy swinging towards the second pin shaft direction to the second connecting rod. Adopt this utility model lens possess transfer, upturn two stable extreme positions, stir the convenience, long service life.
Description
Technical Field
The utility model relates to a spectacle frame field, concretely relates to connecting rod spring mechanism of mirror holder upset.
Background
Some glasses have two extreme positions, one is the downward-placing state of the glasses, namely the normal state, and the visual field of people passes through the glasses for observation; one is the lens upturned state, the lens upturned about 90 degrees compared with the downward state, and the visual field does not pass through the lens. In order to achieve these two extreme positions, the lenses are sometimes fixed by means of some snap-in mechanism, which, for its innate reason, may wear out after a long time of use.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide a link spring mechanism of mirror holder upset, the lens possess transfer, upturn two stable extreme positions, stir the convenience, long service life.
In order to solve the above problem, the utility model provides a connecting rod spring mechanism of mirror holder upset, for reaching the above-mentioned purpose, the utility model provides a technical scheme that its technical problem adopted is:
a mirror frame tilt linkage spring mechanism comprising: the connecting rod comprises a first connecting rod, a second connecting rod, a fourth connecting rod and a third connecting rod which are sequentially connected into a closed loop through pin shafts, the first connecting rod, the second connecting rod, the fourth connecting rod and the third connecting rod form a plane connecting rod mechanism, one end of the fourth connecting rod is hinged with one end of the third connecting rod through the third pin shaft, the other end of the third pin shaft is provided with an extension head fixed with the bridge of the nose of the spectacle frame, the second connecting rod is hinged with the fourth connecting rod through the fourth pin shaft, and the fourth pin shaft is positioned between the third pin shaft and the extension head; the length of the second connecting rod is greater than that of the third connecting rod; the second connecting rod and the third connecting rod are respectively hinged with two ends of the first connecting rod through a first pin shaft and a second pin shaft, the distance between the first pin shaft and the second pin shaft is larger than the distance between the third pin shaft and the fourth pin shaft, and the first connecting rod is fixed with a spectacle frame lens ring; and the torsional spring is sleeved on the first pin shaft and applies elastic potential energy swinging towards the second pin shaft direction to the second connecting rod.
The beneficial effect of adopting above-mentioned technical scheme is: the planar linkage mechanism with the torsion spring can form two stable extreme positions which correspond to the downward-turning and upward-turning positions of the lens. The two extreme positions of the first connecting rod are ensured to change the orientation angle of the first connecting rod by 90 degrees approximately, and the spatial position of the first connecting rod is also changed, the arc stroke of the first connecting rod is approximately a quarter of a circular arc, and the whole body is a compound motion. The torsional spring ensures that the lens has enough elasticity to restrain when being turned upwards and cannot fall back due to gravity. During the whole movement process of the link spring mechanism, a transient equilibrium state exists between the two extreme positions, namely when the length directions of the third link and the fourth link are coincident, but the equilibrium state is unstable, and the whole link spring mechanism has the tendency of moving to the two extreme positions beyond the equilibrium state. The connecting rod spring mechanism with the limit position is utilized, the existing clamping structure is eliminated, the service life is prolonged, and the texture of the lens in the movement process is improved.
As a further improvement, the distance between the second pin and the third pin is greater than the distance between the second pin and the first pin.
The beneficial effect of adopting above-mentioned technical scheme is: the motion form composite requirement of the whole four-bar linkage mechanism is ensured.
As a further improvement of the utility model, the first connecting rod includes integrative first straight board, second straight board, third straight board, and the second straight board, third straight board are connected and syntropy extend with the both ends of first straight board are perpendicular respectively, and first round pin axle, second round pin axle lie in the one end that deviates from first straight board on second straight board, the third straight board respectively, and spectacle frame mirror circle is fixed with first straight board.
The beneficial effect of adopting above-mentioned technical scheme is: the first straight plate is used as a part specially fixed with the spectacle frame lens ring, and the first pin shaft and the second pin shaft are far away from the spectacle frame lens ring as far as possible, so that the interference between the connecting rod and the lens in the rotating process is prevented.
As the utility model discloses a further improvement again, first connecting rod, second connecting rod, the respective both ends of third connecting rod all possess the opening, the one end and the round pin axle contact of opening, the width of opening is less than the diameter of round pin axle.
The beneficial effect of adopting above-mentioned technical scheme is: the notch has the significance of weakening the strength of the through hole of the end of the connecting rod for the pin shaft to pass through, provides a way for dismounting the pin shaft, and facilitates fine adjustment of the size of the through hole.
As the utility model discloses a further improvement again, the articulated punishment of first connecting rod and second connecting rod possesses first protruding edge, the protruding edge of second respectively, and first protruding edge, the protruding edge of second respectively symmetric distribution are in first connecting rod, second connecting rod both sides, and first round pin axle passes first protruding edge, the protruding edge of second, encloses into the fretwork department that holds the torsional spring between the first protruding edge.
The beneficial effect of adopting above-mentioned technical scheme is: the protruding edge provides spacing fixed for passing of first round pin axle, can give out the space of fretwork department simultaneously, provides sufficient space for the installation of torsional spring, increases the arm of force of torsional spring when acting on.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of an embodiment of the present invention in a lowered state.
Fig. 2 is a plan view of a lowering state according to an embodiment of the present invention.
Fig. 3 is a front view of an upturned state according to an embodiment of the present invention.
Fig. 4 is an application schematic diagram of an embodiment of the present invention in a lowering state.
Fig. 5 is an application diagram of an embodiment of the present invention in an upturned state.
1-a first link; 1 a-a first straight plate; 1 b-a second straight plate; 1 c-a third straight panel; 1 d-first convex edge; 2-a second link; 2 a-a second ledge; 3-a third link; 4-a fourth link; 5-a torsion spring; 6-opening; 7-a first pin; 8-a second pin shaft; 9-a third pin shaft; 10-a fourth pin; 11-spectacle frame rim; 12-bridge of spectacle frame nose; 13-hollow out.
Detailed Description
The following detailed description is made in conjunction with specific embodiments of the present invention:
in order to achieve the purpose of the utility model, a link spring mechanism of mirror holder upset, include: the connecting rod comprises a first connecting rod 1, a second connecting rod 2, a fourth connecting rod 4 and a third connecting rod 3 which are sequentially connected into a closed loop through pin shafts, the first connecting rod 1, the second connecting rod 2, the fourth connecting rod 4 and the third connecting rod 3 form a plane connecting rod mechanism, one end of the fourth connecting rod 4 is hinged with one end of the third connecting rod 3 through a third pin shaft 9, the other end of the third pin shaft 9 is provided with an extension head fixed with a nose bridge spectacle frame 12, the second connecting rod 2 is hinged with the fourth connecting rod 4 through a fourth pin shaft 10, and the fourth pin shaft 10 is positioned between the third pin shaft 9 and the extension head; the length of the second connecting rod 2 is greater than that of the third connecting rod 3; the second connecting rod 2 and the third connecting rod 3 are respectively hinged with two ends of the first connecting rod 1 through a first pin shaft 7 and a second pin shaft 8, the distance between the first pin shaft 7 and the second pin shaft 8 is larger than the distance between the third pin shaft 9 and a fourth pin shaft 10, and the first connecting rod 1 is fixed with a spectacle frame ring 11; and the torsion spring 5 is sleeved on the first pin shaft 7, and the torsion spring 5 applies elastic potential energy swinging towards the direction of the second pin shaft 8 to the second connecting rod 2.
The pin shafts comprise a first pin shaft 7, a second pin shaft 8, a third pin shaft 9 and a fourth pin shaft 10 which are the same in shape.
The beneficial effect of adopting above-mentioned technical scheme is: the planar linkage mechanism with the torsion spring can form two stable extreme positions which correspond to the downward-turning and upward-turning positions of the lens. The two extreme positions of the first connecting rod are ensured to change the orientation angle of the first connecting rod by 90 degrees approximately, and the spatial position of the first connecting rod is also changed, the arc stroke of the first connecting rod is approximately a quarter of a circular arc, and the whole body is a compound motion. The torsional spring ensures that the lens has enough elasticity to restrain when being turned upwards and cannot fall back due to gravity. During the whole movement process of the link spring mechanism, a transient equilibrium state exists between the two extreme positions, namely when the length directions of the third link and the fourth link are coincident, but the equilibrium state is unstable, and the whole link spring mechanism has the tendency of moving to the two extreme positions beyond the equilibrium state. The connecting rod spring mechanism with the limit position is utilized, the existing clamping structure is eliminated, the service life is prolonged, and the texture of the lens in the movement process is improved.
In other embodiments of the present invention, the distance between the second pin 8 and the third pin 9 is greater than the distance between the second pin 8 and the first pin 7.
The beneficial effect of adopting above-mentioned technical scheme is: the motion form composite requirement of the whole four-bar linkage mechanism is ensured.
In other embodiments of the present invention, the first connecting rod 1 includes an integrated first straight plate 1a, a second straight plate 1b, a third straight plate 1c, the second straight plate 1b, the third straight plate 1c are respectively connected perpendicularly to both ends of the first straight plate 1a and extend in the same direction, the first pin 7 and the second pin 8 are respectively located at one end of the second straight plate 1b, the third straight plate 1c deviating from the first straight plate 1a, and the spectacle frame ring 11 is fixed to the first straight plate 1 a.
The beneficial effect of adopting above-mentioned technical scheme is: the first straight plate is used as a part specially fixed with the spectacle frame lens ring, and the first pin shaft and the second pin shaft are far away from the spectacle frame lens ring as far as possible, so that the interference between the connecting rod and the lens in the rotating process is prevented.
The utility model discloses an in other embodiments, first connecting rod 1, second connecting rod 2, the respective both ends of third connecting rod 3 all possess opening 6, opening 6's one end and round pin axle contact, and opening 6's width is less than the diameter of round pin axle.
The beneficial effect of adopting above-mentioned technical scheme is: the notch has the significance of weakening the strength of the through hole of the end of the connecting rod for the pin shaft to pass through, provides a way for dismounting the pin shaft, and facilitates fine adjustment of the size of the through hole.
In other embodiments of the present invention, the hinged joint of the first connecting rod 1 and the second connecting rod 2 has the first convex edge 1d and the second convex edge 2a respectively, the first convex edge 1d and the second convex edge 2a are symmetrically distributed on the two sides of the first connecting rod 1 and the second connecting rod 2 respectively, the first pin 7 passes through the first convex edge 1d and the second convex edge 2a, and the first convex edge 1d encloses the hollow part 13 for accommodating the torsion spring 5.
The beneficial effect of adopting above-mentioned technical scheme is: the protruding edge provides spacing fixed for passing of first round pin axle, can give out the space of fretwork department simultaneously, provides sufficient space for the installation of torsional spring, increases the arm of force of torsional spring when acting on.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. A link spring mechanism for mirror holder flipping, comprising:
the connecting rod comprises a first connecting rod, a second connecting rod, a fourth connecting rod and a third connecting rod which are sequentially connected into a closed loop through pin shafts, the first connecting rod, the second connecting rod, the fourth connecting rod and the third connecting rod form a plane connecting rod mechanism, one end of the fourth connecting rod is hinged with one end of the third connecting rod through the third pin shaft, the other end of the third pin shaft is provided with an extension head fixed with the bridge of the nose of the spectacle frame, the second connecting rod is hinged with the fourth connecting rod through the fourth pin shaft, and the fourth pin shaft is positioned between the third pin shaft and the extension head; the length of the second connecting rod is greater than that of the third connecting rod; the second connecting rod and the third connecting rod are hinged with two ends of the first connecting rod through a first pin shaft and a second pin shaft respectively, the distance between the first pin shaft and the second pin shaft is larger than the distance between the third pin shaft and a fourth pin shaft, and the first connecting rod is fixed with a spectacle frame ring;
and the torsional spring is sleeved on the first pin shaft and applies elastic potential energy swinging towards the second pin shaft direction to the second connecting rod.
2. The mirror frame tilt linkage spring mechanism of claim 1, wherein: and the distance between the second pin shaft and the third pin shaft is larger than the distance between the second pin shaft and the first pin shaft.
3. The mirror frame tilt linkage spring mechanism of claim 1, wherein: the first connecting rod comprises a first straight plate, a second straight plate and a third straight plate which are integrated, the second straight plate and the third straight plate are respectively and vertically connected with the two ends of the first straight plate and extend in the same direction, the first pin shaft and the second pin shaft are respectively positioned at one end of the second straight plate and one end of the third straight plate, which deviates from the first straight plate, and the spectacle frame ring is fixed with the first straight plate.
4. The mirror frame tilt linkage spring mechanism of claim 3, wherein: the two ends of each of the first connecting rod, the second connecting rod and the third connecting rod are provided with openings, one ends of the openings are in contact with the pin shaft, and the width of the openings is smaller than the diameter of the pin shaft.
5. The mirror frame tilt linkage spring mechanism of claim 4, wherein: the hinge joint of the first connecting rod and the second connecting rod is respectively provided with a first convex edge and a second convex edge, the first convex edge and the second convex edge are respectively and symmetrically distributed on two sides of the first connecting rod and the second connecting rod, the first pin shaft penetrates through the first convex edge and the second convex edge, and a hollow part for accommodating the torsion spring is enclosed between the first convex edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922388073.3U CN210954507U (en) | 2019-12-26 | 2019-12-26 | Connecting rod spring mechanism for turning mirror bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922388073.3U CN210954507U (en) | 2019-12-26 | 2019-12-26 | Connecting rod spring mechanism for turning mirror bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210954507U true CN210954507U (en) | 2020-07-07 |
Family
ID=71395977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922388073.3U Expired - Fee Related CN210954507U (en) | 2019-12-26 | 2019-12-26 | Connecting rod spring mechanism for turning mirror bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210954507U (en) |
-
2019
- 2019-12-26 CN CN201922388073.3U patent/CN210954507U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200707 Termination date: 20211226 |