Connecting structure of lens and end piece or middle beam

Abstract

The utility model provides a connecting structure of a lens and an end piece or a middle beam, which comprises the lens, the end piece and / or the middle beam, a sunken part is arranged at the joint of the lens and the end piece and / or the middle beam, and the corresponding end piece and / or the middle beam are partially clamped into the sunken part and are fixed through one or more fasteners. Compared with the prior art, the utility model has the beneficial effects that a direct positioning structure is arranged between the lens and the end piece / or the middle beam, so that a main stress point between the lens and a part connected with the lens is on the direct positioning structure, the stress of a fastener is reduced, the shaking phenomenon cannot be caused after long-time use, and the quality of the glasses is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of glasses, in particular to a lens connection structure of frameless glasses. Background Art

[0002] The lenses and the temples (the part connected to the temples) and the middle beam (the part connecting the two lenses) of frameless glasses on the market are generally connected by screws. In order to prevent the lenses and the temples or the lenses and the middle beam from rotating with each other after being connected, two screw installation positions are usually set at the connection and fixed with two screws. Since this connection method mainly relies on the screws to bear the force, and the size of this screw is very small, usually an M1 screw, this small screw will become loose when used for a long time and under great force, causing the lens and the temples or the lens and the middle beam to shake, or even fall off, affecting product quality. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to design the lens connection structure of frameless glasses to make the connection more firm.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A connection structure between a lens and a head or a middle beam comprises a lens, a head and / or a middle beam. A concave depression is provided at the connection between the lens and the head and / or the middle beam. The corresponding head and / or the middle beam are partially inserted into the depression and fixed by one or more fasteners.

[0006] Preferably, a recessed portion is provided on both sides of the connection between the lens and the head and / or the middle beam, and a slot for the lens to be inserted is provided at the connection between the head and / or the middle beam and the recessed portion, forming a clip for clamping the recessed portion of the lens, and the clips on both sides of the lens are locked and fixed by fasteners. As a further preference, the recessed portion is a structure with a thin inner side and a thick outer side and a trapezoidal cross-section, and the corresponding slot is a dovetail groove structure, so that the lens can be directly clamped after being clamped with the head and / or the middle beam. As a further preference, a concave notch is provided on the side of the middle section of the recessed portion, and a corresponding protrusion matching the recessed portion and the notch on the lens is provided on the head and / or the middle beam.

[0007] As another preferred embodiment, a recessed portion is provided on both sides of the connection between the lens and the head and / or the middle beam, each recessed portion is provided with a notch, and a corresponding head and / or the middle beam is provided with a convex protrusion. A pressing block is provided on the other side of the lens connected to the head and / or the middle beam, and the shape of the pressing block matches the shape of the recessed portion combined with the notch. The pressing block is embedded in the recessed portion of the lens, and the pressing block is locked and fixed to the lens and the head and / or the middle beam by fasteners. As a further preferred embodiment, a convex column protruding toward one side of the lens is provided on the head and / or the middle beam, and a jack for inserting the convex column is provided on the corresponding lens, and a fastener located on one side of the pressing block passes through the pressing block and is connected to the convex column; or a convex column protruding toward one side of the lens is provided on the pressing block, and a jack for inserting the convex column is provided on the corresponding lens, and a fastener located on one side of the head and / or the middle beam passes through the head and / or the middle beam and is connected to the convex column. As a further preferred embodiment, the height of the convex column is less than or equal to the thickness of the lens at the recessed portion.

[0008] Preferably, the fastener is a screw, a bolt or a rivet.

[0009] Preferably, the center beam and / or the headstock are made of plastic or metal.

[0010] The beneficial effect of the utility model is that the utility model sets a direct positioning structure between the lens and the head / or the middle beam, so that the main stress points between the lens and the parts connected thereto are on the direct positioning structure, thereby reducing the stress on the fasteners, and no shaking will occur during long-term use, thereby improving the quality of the glasses. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a cross-sectional view of embodiment 1;

[0012] Figure 2 is a schematic diagram of the structure of the lens in Example 1;

[0013] Figure 3 It is a structural schematic diagram of the Zhuangtou in Example 1;

[0014] Figure 4 for Figure 3 A partial enlarged view of

[0015] Figure 5 It is a structural schematic diagram of the middle beam in the first embodiment;

[0016] Figure 6 is a cross-sectional view of the second embodiment;

[0017] Figure 7 is a schematic diagram of the structure of the lens in Example 2;

[0018] Figure 8 This is a schematic diagram of the structure of the Zhuangtou in the second embodiment;

[0019] Fig. 9 It is a schematic diagram of the structure of the pressing block in the second embodiment;

[0020] Fig.10 It is a schematic diagram of the structure of the middle beam in the second embodiment. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figure 1-Figure 5 , as shown in the figure, is a connection structure between the lens and the head or the middle beam in the glasses. The connection structure can be used for the connection between the lens 1 and the head 2, and can also be used for the connection between the lens 1 and the middle beam 3. It is worth noting that a concave recessed portion 11 is provided at the connection between the lens 1 and the head and / or the middle beam, and the corresponding head and / or the middle beam are partially inserted into the recessed portion 11 and fixed by one or more fasteners. In this embodiment, one fastener is preferably provided. Since the main stress points of the lens and the head and / or the middle beam are at the inner wall of the recessed portion 11, the fastener does not bear much force. Therefore, only one fastener can be provided at the connection to ensure the firmness of the connection, and it will not shake for a long time, ensuring the service life and product quality. At the same time, since the size of the fastener is too small and difficult to process, the design of one fastener at the connection in this embodiment also reduces the difficulty of product processing, improves the processing and assembly efficiency of the product, and reduces the scrap rate. In this embodiment, a socket 12 for the fastener to pass through is provided in the recessed portion of the lens, and the corresponding number of sockets is set according to the number of fasteners.

[0024] In order to further strengthen the connection strength of the lens, the embodiment of the present invention is provided with a recessed portion 11 on both sides of the connection between the lens and the head and / or the middle beam, and a slot 4 for the lens 1 to be inserted is provided at the connection between the head and / or the middle beam and the recessed portion 11, so as to form a clip for clamping the recessed portion of the lens, and the clips on both sides of the lens are locked and fixed by fasteners. The lens of the present invention is provided with a recessed portion 11 on both sides of the front and back sides, so that the contact area between the lens 1 and the head and / or the middle beam is doubled, further strengthening the connection strength between the lens 1 and the head and / or the middle beam, and further ensuring the service life and product quality. In addition, the recessed portion can also be designed as a structure with a thin inner thickness and a thick outer thickness and a trapezoidal cross-section, and the corresponding slot 4 is also designed as a dovetail groove structure, so that when the lens is clamped with the head and / or the middle beam, it can be directly clamped to prevent retreat, so that the fastener is almost not subjected to force, and there is no problem of shaking.

[0025] In this embodiment, the fasteners are screws, bolts or rivets. The middle beam and / or the head are made of plastic or metal.

[0026] Embodiment 2

[0027] like Figure 6-Figure 10 As shown, the difference between this embodiment and the first embodiment is that: the front and rear surfaces of the connection of the lens 1 of this embodiment are also provided with a recessed portion 11, and the side of the middle section of the recessed portion 11 of this embodiment is additionally provided with an inwardly concave notch 111, and the corresponding head and / or middle beam are provided with a clamping protrusion 5 matching the recessed portion and the notch 111 on the lens 1. The provision of the clamping protrusion 5 and the notch 111 further increases the contact area, further strengthens the connection strength between the lens 1 and the head and / or middle beam, and further ensures the service life and product quality.

[0028] A recessed portion 11 is provided on both sides of the connection between the lens 1 and the head and / or the middle beam, each recessed portion is provided with a notch 111, and a corresponding head and / or the middle beam is provided with a clamping protrusion 5. A pressing block 6 is provided on the other side of the lens 1 connected to the head and / or the middle beam, and the shape of the pressing block 6 matches the shape of the recessed portion and the notch. The pressing block 6 is embedded in the recessed portion 11 of the lens, and the pressing block 6 is locked and fixed to the lens 1 and the head and / or the middle beam by fasteners. The setting of the pressing block not only prevents the screw from directly pressing the lens to cause serious wear of the lens, but also makes the pressing blocks 6 on both sides of the lens and the head or the middle beam become one, which increases the force-bearing area, thereby increasing the quality of the product.

[0029] The said block head and / or the middle beam are provided with a convex column 7 protruding toward one side of the lens 1, and the corresponding lens 1 is provided with a socket 12 for the convex column 7 to be inserted, and the convex column 7 is provided with an internal threaded hole 71, and the fastener located on one side of the pressing block 6 passes through the pressing block 6 and is connected with the convex column 7; or the said pressing block 6 is provided with a convex column 7 protruding toward one side of the lens 1 (not shown in the embodiment, but its structure can be easily imagined), and the corresponding lens 1 is provided with a socket 12 for the convex column 7 to be inserted, and the convex column 7 is provided with an internal threaded hole, and the fastener located on one side of the block head and / or the middle beam passes through the block head and / or the middle beam and is connected with the convex column. In this embodiment, the connection between the pressing block, the lens, the block head and / or the middle beam is preferably connected by screw connection, and the connection method of rivets and bolts is not excluded. In the case of screw connection, at least one end of the pressing block, the block head or the middle beam can be a blind hole, with a smooth surface and better aesthetics. In the two schemes of the convex column 7 in this embodiment, the height of the convex column is less than or equal to the thickness of the lens at the recessed part. The function of the boss is not only to make the threaded section of the screw connection longer, but more importantly, it can position the boss and the lens socket so that it can mainly bear loads in all other non-axial directions, further reduce the stress on the fastener, and further ensure the quality of the product.

Claims

1. A connection structure between a lens and a head or a middle beam, comprising a lens, a head and / or a middle beam, characterized in that: A concave depression is provided at the connection between the lens and the head and / or the middle beam, and the corresponding head and / or the middle beam are partially inserted into the depression and fixed by one or more fasteners.

2. A connection structure between a lens and a head or a middle beam as claimed in claim 1, characterized in that: A recessed portion is provided on both sides of the connection between the lens and the head and / or the middle beam, and a slot for the lens to be inserted is provided at the connection between the head and / or the middle beam and the recessed portion, forming a clip for clamping the recessed portion of the lens, and the clips on both sides of the lens are locked and fixed by fasteners.

3. A connection structure between a lens and a head or a middle beam as claimed in claim 2, characterized in that: The recessed portion is a structure with a thin inner side and a thick outer side and a trapezoidal cross section, and the corresponding clamping groove is a dovetail groove structure, so that the lens can be directly clamped after being clamped with the head and / or the middle beam.

4. The connection structure of the lens and the head or the middle beam as claimed in claim 1, characterized in that: A concave notch is arranged on the side of the middle section of the recessed part, and a corresponding clamping protrusion matching the recessed part and the notch on the lens is arranged on the corresponding head and / or the middle beam.

5. The connection structure of the lens and the head or the middle beam as claimed in claim 4, characterized in that: Recessed portions are provided on both sides of the connection between the lens and the head and / or the middle beam, each recessed portion is provided with a notch, and corresponding head and / or middle beam are provided with a clamping protrusion, and a pressing block is provided on the other side of the lens connected to the head and / or middle beam, the shape of the pressing block matches the shape of the recessed portion and the notch, the pressing block is embedded in the recessed portion of the lens, and the pressing block is locked and fixed to the lens and the head and / or middle beam by fasteners.

6. The connection structure of the lens and the head or the middle beam as claimed in claim 5, characterized in that: The head and / or the middle beam are provided with a convex column protruding toward one side of the lens, and the corresponding lens is provided with a socket for the convex column to be inserted, and a fastener located on one side of the pressing block passes through the pressing block and is connected with the convex column.

7. The connection structure of the lens and the head or the middle beam as claimed in claim 5, characterized in that: The pressing block is provided with a convex column protruding toward one side of the lens, and the corresponding lens is provided with a socket for the convex column to be inserted, and the fastener located on one side of the head and / or the middle beam passes through the head and / or the middle beam and is connected to the convex column.

8. A connection structure between a lens and a head or a middle beam as claimed in claim 6 or 7, characterized in that: The height of the convex column is smaller than or equal to the thickness of the lens at the concave portion.

9. A connection structure between a lens and a head or a middle beam as claimed in any one of claims 1 to 5, characterized in that: The fasteners are screws, bolts or rivets.

10. A connection structure between a lens and a head or a middle beam as claimed in any one of claims 1 to 5, characterized in that: The middle beam and / or the headstock are made of plastic or metal.

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