Background
Glasses are well known as articles that are composed of lenses and frames for improving vision, protecting eyes, or for decorative purposes. And glasses may correct a variety of vision problems including myopia, hyperopia, astigmatism, presbyopia, strabismus, or amblyopia, etc. In many cases, the glasses are worn for a long time, and when the glasses are worn, the legs and the nose bridge pad on the glasses frame form a support on the head, so that the wearing effect of the user is directly affected by the quality of the legs.
At present, when the prior glasses legs are worn, the prior glasses legs are hung at the positions of the earbacks of human bodies, and certain elastic deformation force exists between the glasses legs for the wearing stability, and certain clamping force is formed for the heads after the prior glasses legs are worn, so that the prior glasses legs are more stable to wear than the prior glasses legs are directly put on. Then, the elastic clamping force of the prior glasses leg basically depends on the elasticity of the materials of the glasses leg, so that the design has requirements on the materials of the glasses leg, and the elastic force is worse and worse due to the existence of elastic fatigue of the materials after the glasses leg is worn for a long time, so that the appearance of loosening and collapsing is brought about, and the wearing is affected.
Disclosure of utility model
Aiming at the defects in the prior art, the utility model aims to provide the glasses leg with the external elastic structure.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides a glasses leg that possesses external elasticity structure, includes preceding mirror leg, rear mirror leg and shell fragment, the one end of preceding mirror leg is articulated to be connected with the one end of rear mirror leg, shell fragment demountable installation in the articulated department of preceding mirror leg and rear mirror leg, the one end top of shell fragment touches in the surface of preceding mirror leg, the other end of shell fragment is provided with the arch portion and strides articulated department, and the end top of the other end of shell fragment touches on the surface of rear mirror leg.
Preferably, the inner side of the elastic sheet is provided with an ear seat, the front glasses leg is provided with a jack, threaded holes are formed in the position of the front glasses leg, which is located at the jack, and the position of the end face of the ear seat, which is inserted into the jack and fastened through bolts inserted into the threaded holes.
Preferably, the rear mirror leg is provided with a groove at the position where the rear mirror leg and the elastic sheet are in contact with each other, and the end head of the elastic sheet is in contact with the groove.
Preferably, the groove edge of the groove is an arc-shaped surface.
By adopting the scheme, the external elastic sheet is additionally arranged at the hinge point of the glasses leg, so that when the glasses leg is worn, the elastic force is provided by the arched part arranged by the elastic sheet to push the glasses leg, the resilience force is increased for the glasses leg, and the clamping force of the glasses leg to the head is further improved; meanwhile, due to the detachable design of the elastic sheet, the use requirement can be met again through replacing the elastic sheet after elastic fatigue occurs to the elastic sheet.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1 to 4, the glasses leg with the external elastic structure provided in this embodiment includes a front glasses leg 1, a rear glasses leg 2 and an elastic sheet 3, one end of the front glasses leg 1 is hinged with one end of the rear glasses leg 2, the elastic sheet 3 is detachably mounted at the hinge position of the front glasses leg 1 and the rear glasses leg 2, one end of the elastic sheet 3 is propped against the surface of the front glasses leg 1, the other end of the elastic sheet 3 is provided with an arch portion 31 to stride across the hinge position, and the end of the other end of the elastic sheet 3 is propped against the surface of the rear glasses leg 2.
According to the embodiment, the external elastic sheet 3 is additionally arranged at the hinge point of the glasses leg, so that when the glasses leg is worn, the elastic force is provided by the arched part 31 arranged on the elastic sheet 3 to push against, the resilience force is increased for the glasses leg, and the clamping force of the glasses leg to the head is further improved; meanwhile, due to the detachable design of the elastic sheet 3, the use requirement can be met again by replacing the elastic sheet 3 after elastic fatigue of the elastic sheet 3 occurs.
Specifically when wearing, when the rear mirror leg 2 is received, one end of the shrapnel 3 is not contacted with the rear mirror leg 2, when wearing needs, the rear mirror leg 2 is opened, the rear mirror leg 2 is completely opened, and when wearing the human head, the end face of the rear mirror leg 2 can form a jacking contact with one end of the shrapnel 3 and further expand outwards, so that the shrapnel 3 can be jacked, the arched part 31 is arranged at one end of the shrapnel 3, the other end is kept at the jacking contact of the front mirror leg 1, the shrapnel 3 can generate corresponding elasticity along with the continuous pushing, the rear mirror leg 2 is jacked, and the effect of increasing the wearing clamping force by means of an external elastic structure is realized.
Further, because the elastic sheet 3 is elastically deformed when the glasses are worn each time, elastic deformation repeatedly occurs for a plurality of times, elastic fatigue of the elastic sheet 3 is caused, and once the elastic sheet 3 is worn, the previous external elastic action is lost, and thus the wearing fastening cannot be maintained, so that the elastic sheet 3 is arranged into a detachable structure, that is, the inner side surface of the elastic sheet 3 is provided with the ear seat 32, the front glasses leg 1 is provided with the insertion hole 11, the front glasses leg 1 is positioned at the insertion hole 11 and the ear seat 32 is positioned at the end surface of the front glasses leg, the threaded holes 12 are respectively formed, and the ear seat 32 is inserted into the insertion hole 11 and is inserted into the threaded holes 12 through the bolts 4 for fastening.
Further, in order to make the elastic sheet 3 more stable when in contact, a limiting point is provided for the end of the elastic sheet 3, so the rear mirror leg 2 of the embodiment is provided with a groove 21 at the position where the rear mirror leg is in contact with the elastic sheet 3, and the end of the elastic sheet 3 is in contact with the groove 21. And the groove edge of the groove 21 is an arc surface, so that the end of the spring plate 3 can be conveniently clamped in during assembly.
It should be noted that, in the present embodiment, the spring plate 3 is preferably made of β titanium alloy, the overall thickness is controlled to be about 2 mm, and the thickness of the arch portion 31 is controlled to be about 1mm, but the specific thickness is flexibly adjusted according to the characteristics of the material, and the specific thickness value is not limited.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.