CN209674123U - Adjustable length glasses arms - Google Patents

Abstract

The utility model discloses a kind of legs of spectacles of adjustable length, including primary mirror leg, secondary mirror leg and locking mechanism；The rear portion of the primary mirror leg is equipped with extension section, is provided with multiple location indentations on the extension section；The front of the secondary mirror leg is equipped with the cavity longitudinally extended, and the extension section is set in the cavity, and the cavity for accommodating the locking mechanism is provided on the secondary mirror leg；The locking mechanism includes button portion, positioning region and elastic portion, and the positioning region is equipped with positioning protrusion, and under the elastic force effect of the elastic portion, the positioning protrusion can engage with the location indentations；By applying active force to the button portion, the positioning protrusion can be made to be detached from the location indentations.The leg of spectacles of the adjustable length of the utility model, the user that can adapt to different head sizes wears, and facilitates adjusting.

Description

Adjustable length glasses arms

technical field

The utility model relates to spectacles, in particular to a spectacle leg with adjustable length.

Background technique

Fixed-length temples cannot achieve the best fit with the size of the user's head, so adjustable-length temples have emerged as the times require. However, most of the currently known adjustable-length temples have complex structures and are inconvenient to adjust. Therefore need further improvement.

Utility model content

In order to solve the above problems, the utility model provides a spectacle leg with adjustable length, which can be worn by users with different head sizes.

In order to achieve the above object, the adjustable length spectacle leg of the utility model includes a main spectacle leg, a secondary spectacle leg and a locking mechanism; There are a plurality of positioning recesses; the front part of the auxiliary temple is provided with a cavity extending longitudinally, the stretching part is placed in the cavity, and the auxiliary temple is provided with a locking mechanism for accommodating it. the cavity; the locking mechanism includes a button portion, a positioning portion and an elastic portion, and the positioning portion is provided with a positioning protrusion, and under the elastic force of the elastic portion, the positioning protrusion can be aligned with the positioning portion The concave part is engaged; by applying force to the key part, the positioning protrusion can be separated from the positioning concave part.

The adjustable-length spectacle leg of the utility model includes a main spectacle leg, a secondary spectacle leg and a locking mechanism; the front part of the secondary spectacle leg is provided with a stretching part, and the stretching part is provided with a plurality of positioning concave parts The rear part of the main mirror leg is provided with a cavity extending longitudinally, the stretching part is placed in the cavity, and the main mirror leg is provided with a cavity for accommodating the locking mechanism; The locking mechanism includes a button part, a positioning part and an elastic part, the positioning part is provided with a positioning protrusion, and under the elastic force of the elastic part, the positioning protrusion can engage with the positioning concave part; Applying an active force to the button part can make the positioning protrusion detach from the positioning concave part.

The key part is provided with a longitudinal through hole, the stretching part runs through the longitudinal through hole, the bottom of the key part is provided with a transverse through groove, the transverse through groove intersects with the longitudinal through hole, and the positioning protrusion One end of the elastic part abuts against the bottom of the cavity, and the other end abuts against the bottom of the key part.

The key part is provided with a longitudinal through hole, the stretching part passes through the longitudinal through hole, the bottom of the key part is provided with a vertical through hole, the vertical through hole communicates with the longitudinal through hole, and the positioning The protrusion is fixed in the longitudinal through hole, the positioning protrusion passes through the vertical through hole, its head extends into the longitudinal through hole, and one end of the elastic part is against the bottom of the cavity, The other end abuts against the bottom of the button part.

The head of the stretching part is provided with an anti-off boss, and when the stretch part moves outward relative to the cavity, the key part can abut against the anti-off boss to prevent the passage The stretching part moves outward relative to the cavity; by pressing the key part, the key part can be separated from the anti-off protrusion, so that the anti-off protrusion passes through the longitudinal through hole.

The locking mechanism is a longitudinally extending sheet, the middle part of the locking mechanism is hinged to both sides of the cavity through a pin, one end of the locking mechanism is provided with the positioning part, and the other end is slotted The end of the locking mechanism is divided into an elastic part and a button part, and the elastic part abuts against the bottom of the cavity.

The locking mechanism is a sheet body extending longitudinally, the middle part of the locking mechanism is hinged to both sides of the cavity through a pin shaft, the positioning part is provided at one end of the locking mechanism, and the positioning part is provided at the other end. For the button part, the elastic part is arranged between the button part and the bottom of the cavity.

The elastic part adopts one of spring, elastic plastic and rubber.

The opening direction of the cavity is set upwards or downwards.

The length-adjustable spectacle leg of the utility model can adjust the length of the spectacle leg by pressing the button, can be worn by users with different head sizes, and is convenient to adjust.

Description of drawings

Fig. 1 is the exploded schematic view of the first embodiment of the adjustable length spectacle leg of the present utility model;

Fig. 2 is the assembly schematic diagram of the first embodiment of the adjustable-length spectacle leg of the present utility model;

Fig. 3 is A-A sectional view of Fig. 2;

Fig. 4 is an exploded schematic diagram of a second embodiment of the adjustable-length spectacle leg of the present invention;

Fig. 5 is an assembly schematic diagram of the second embodiment of the adjustable-length spectacle legs of the present invention, wherein the two spectacle legs are in a state of being completely detachable;

Fig. 6 is the B-B sectional view of Fig. 5;

Fig. 7 is a schematic diagram of assembly of the second embodiment of the adjustable-length spectacle legs of the present invention in use;

Fig. 8 is a C-C sectional view of Fig. 6;

Fig. 9 is a schematic diagram of the second embodiment of the adjustable-length spectacle arm in the anti-off state of the utility model;

Fig. 10 is an assembly schematic diagram of the third embodiment of the adjustable-length spectacle leg of the present invention;

Figure 11 is a D-D sectional view of Figure 9;

Fig. 12 is an exploded schematic view of a fourth embodiment of the adjustable-length spectacle arm of the present invention;

Fig. 13 is a partial schematic diagram of a fifth embodiment of the adjustable-length spectacle arm of the present invention;

Fig. 14 is an exploded schematic view of the sixth embodiment of the adjustable-length spectacle arm of the present invention;

Fig. 15 is an assembly schematic diagram of the sixth embodiment of the adjustable-length spectacle leg of the present invention;

Fig. 16 is a schematic diagram of assembly of the seventh embodiment of the adjustable-length spectacle temple of the present invention.

Detailed ways

Below, with reference to the accompanying drawings, the structure and working principle of the present utility model will be further described.

In the present utility model, when not specified, "front", "rear", "upper", "lower", "left", and "right" are only used to indicate the relative positional relationship, when the absolute position of the described object After the change, the relative positional relationship may also change accordingly.

Fig. 1-3 shows the adjustable length spectacle arm of the first embodiment of the present utility model, the adjustable length spectacle arm of the present embodiment, comprises the spectacle leg 1 that is provided with stretching part 11, is provided with hollow The temple 2 of the cavity 21 and the locking mechanism 3, the cavity 21 can accommodate the stretching part 11, the cavity 21 extends along the longitudinal direction of the temple 2 provided with the cavity 21, the The mirror leg 2 provided with the cavity 21 is provided with a cavity 22 for accommodating the locking mechanism 3 , the cavity 22 is a blind hole, and the extension direction of the cavity 22 is consistent with the extension of the cavity 21 Direction is vertical. The stretching part 11 is provided with a plurality of positioning recesses 111 , and the positioning recesses 111 can be formed by slotting the stretching part 11 .

The locking mechanism 3 includes a key portion 31, a positioning portion 32 and an elastic portion 33. The key portion 31 can be in the shape of a cylinder or a cuboid. The top of the key portion 31 is a plane or a curved surface. The key portion 31 is provided with a longitudinal through hole 311 , and the stretching part 11 passes through the longitudinal through hole 311 . The bottom of the button part 31 is provided with a transverse through groove 312, the transverse through groove 312 intersects with the longitudinal through hole 311, and the upper part of the positioning part 32 is provided with a positioning protrusion 321, and the positioning protrusion 321 is fixed on the In the transverse through groove 312, since the transverse through groove 312 intersects with the longitudinal through hole 311, the positioning protrusion 321 is higher than the bottom surface of the longitudinal through hole 311, and the positioning protrusion 321 can be clamped on the Locate in the concave portion 111. The positioning protrusion 321 can be in the shape of a trapezoid, a cuboid or a semi-cylindrical body, the elastic part 33 can be in the form of a spring, and one end of the elastic part 33 is against the bottom of the cavity 22, that is, the bottom of the blind hole. , and the other end abuts against the bottom of the button portion 31 , and under the action of the elastic portion 33 , the positioning protrusion 321 is snapped into the positioning concave portion 111 . If the button part 31 is pressed, the positioning protrusion 321 will break away from the positioning concave part 111. At this time, the temple 1 provided with the stretching part 11 can be pulled to change the length of the whole temple. The button part 31 can make the positioning protrusion 321 snap into another positioning concave part 111. At this time, the mirror leg 1 provided with the stretching part 11 and the mirror leg 2 provided with the cavity 21 are locked again, and cannot Move each other to complete the length adjustment of the temples.

The head of the stretching part 11 is provided with a detachment prevention boss 112 to prevent it from detaching from the cavity 21 . When the stretching part 11 moves outward relative to the cavity 21, the button part 31 can abut against the anti-off boss 112, preventing the passing stretching part 11 from moving outward relative to the cavity 21. External movement; by pressing the key portion 31 , the key portion 31 can be separated from the anti-off protrusion 112 , so that the anti-off protrusion 112 can pass through the longitudinal through hole 311 .

In this embodiment, the positioning part 32 can be a T-shaped positioning part, which is composed of a horizontal positioning protrusion 321 and a vertical cylindrical rod 322. The elastic part 33 can be a spring, and the spring is sleeved on the One end of the cylindrical rod 322 abuts against the bottom of the cavity 22 , and the other end abuts against the bottom of the key portion 31 , so as to provide reset force for the key portion 31 .

In this embodiment, the stretching part 11 is arranged on the main temple, and the cavity 21 is arranged on the auxiliary temple.

Referring to the adjustable-length spectacle arm of the second embodiment of the utility model shown in Fig. 4-Fig. Compared with the first embodiment, the lock mechanism 3 differs in that the stretching part 11 is arranged on the auxiliary temple, and the cavity 21 is arranged on the main temple. The structures that have been specifically described in the first embodiment will not be repeated here.

Referring to Fig. 5 and Fig. 6, if the key part 31 is pressed deeply, the longitudinal through hole 311 in the key part 31 and the positioning protrusion 321 of the positioning part 32 are all lower than the anti-off boss 112 on the head of the stretching part 11, stretching The anti-off boss 112 of the part 11 passes through the longitudinal through hole 311 of the key part 31 without hindrance. By deeply depressing the button portion 31 , the temple 1 provided with the stretching portion 11 and the temple 2 provided with the cavity 21 can be disengaged or inserted into each other.

Referring to Fig. 7 and Fig. 8, the elastic part 33 is a spring, the button part 31 is released, the button part 31 resets under the action of the elastic part 33, the positioning protrusion 321 of the positioning part 32 snaps into the positioning concave part 111, and a stretching part 11 is provided. The temples 1 are locked in the temples 2 provided with a cavity 21, and cannot be twitched with each other.

Referring to FIG. 9 , the temple 1 provided with the stretching part 11 is drawn outward relative to the temple 2 provided with the cavity 21 , and when it engages with the positioning recess 111 of the stretching part 11 closest to the head, When connected, its anti-falling boss 112 abuts against the outside of the bottom of the button part 31, so that the temple 1 provided with the stretching part 11 cannot be drawn out, so that the main and auxiliary temples will not be arbitrarily used during normal use. When it needs to be replaced or repaired, you can refer to Fig. 5 and Fig. 6 and press the key part 31 deeply to pull out the temple 1 provided with the stretching part 11.

Referring to Fig. 10 and Fig. 11, the adjustable-length spectacle temple of the third embodiment of the present utility model is different from the locking mechanism structure of the second embodiment, mainly because the positioning part 32 is a cylinder with steps The positioning protrusion 321 is a small cylinder, and the stretching part is provided with a positioning concave part 111. The locking mechanism 3 includes a key part 31, a positioning part 32 and an elastic part 33. The key part 31 is provided with a longitudinal channel. The stretching part 11 runs through the longitudinal through hole. The bottom of the button part 31 is provided with a vertical through hole, the vertical through hole is connected to the longitudinal through hole, the upper part of the positioning part 32 is provided with a positioning protrusion, and the positioning protrusion passes through the vertical through hole, Its head extends into the longitudinal through hole, and the positioning protrusion can be snapped into the positioning recess 111 . The structure of the positioning recess 111 matches the positioning protrusion, including blind holes and through holes. The positioning protrusion can also adopt the shape of a cuboid or polyhedron. Correspondingly, the positioning recess 111 can adopt a circular hole, and Blind or through holes for polygonal holes.

Referring to the adjustable-length spectacle arm of the fourth embodiment of the present utility model shown in FIG. The elastic part 33 is made of elastic rubber or plastic, and the elastic part 33 indirectly exerts force on the key part 31 by applying elastic force to the cylindrical rod.

Referring to the adjustable-length spectacle arm of the fifth embodiment of the present invention shown in FIG. 13 , the structure of this embodiment is basically the same as that of the second embodiment. The opening direction of the cavity of the lock mechanism 3 is downward, and the positioning recess set by the stretching part of the temple 1 provided with the stretching part 11 is a trapezoidal groove or a tapered concave hole and the opening direction is upward, and the locking mechanism 3. It is placed upside down under the temple 2 provided with the cavity 21. A blind hole is arranged in the cylindrical rod of the positioning part 32 of the locking mechanism 3. The reset part 33 is a spring, and one end of the spring is pressed against the side of the blind hole. The other end is against the bottom of the cavity 22 . The positioning protrusion 321 of the positioning part 32 adopts a hemispherical body and a half cylinder, and the positioning protrusion 321 is stuck in the positioning recess of the stretching part. When the temples 2 of the cavity 21 are twitched with each other, the positioning projection 321 can be pulled out from the positioning concave portion without pressing the button portion 31, and then shifted to another positioning concave portion for snapping. And then to realize the adjustment of the length of the spectacle legs, only when the spectacle leg 1 provided with the stretching part 11 and the spectacle leg 2 provided with the cavity 21 need to be disengaged from each other, it is necessary to press the button 31 upwards and deeply to make the positioning The protrusion 321 is completely separated from the positioning recess, and completely avoids the fall-off prevention boss.

Referring to Figure 14 and Figure 15 of the sixth embodiment of the utility model with adjustable length spectacle legs, compared with the previous embodiments, the structure of the locking mechanism 3 of this embodiment is different, the design The temple 2 with the cavity 21 is provided with a cavity 22 for accommodating the locking mechanism 3 , and the locking mechanism 3 is a piece extending longitudinally along the temple 2 provided with the cavity 21 . The middle part of the locking mechanism 3 is hinged to both sides of the cavity 22 through the pin shaft 33b. One end of the locking mechanism 3 is provided with a positioning part 32, and a positioning protrusion 321 is arranged on the positioning part. The other end of the locking mechanism 3 is slotted to divide the end of the locking mechanism 3 into an elastic portion 33 a and a button portion 31 , and the elastic portion 33 a abuts against the top of the cavity 22 . The stretching part 11 is provided with a plurality of positioning recesses 111 , and the head of the stretching part is provided with an anti-loosening boss 112 to prevent the stretching part from falling out of the cavity 21 .

In this embodiment, the locking mechanism 3 is rotatably connected to the temple 2 provided with the cavity 21 through the pin shaft 33b, forming a lever reset mechanism. Referring to FIG. 14, if the button part 31 is pressed upward, The locking mechanism 3 rotates around the pin shaft 33b, and the positioning part 32 will be downward, so that the positioning protrusion 321 is separated from the positioning concave part 111, and the temple 1 provided with the stretching part 11 and the temple 1 provided with the cavity 21 The temples 2 can be twitched with each other, and the button part 3 is released. Under the action of the elastic part 33a, the locking mechanism 3 rotates around the pin shaft 33b and resets, and the positioning protrusion 321 is snapped into the positioning concave part 111. The temple 1 provided with the stretching portion 11 and the temple 2 provided with the cavity 21 are locked to each other.

Referring to the adjustable-length spectacle arm of the seventh embodiment of the present invention shown in FIG. The temple 1 is the main temple, and the temple 2 provided with the cavity 21 is the auxiliary temple. In this embodiment, the locking mechanism 3 is a piece extending longitudinally along the temple 2 provided with the cavity 21 , and the middle part of the locking mechanism 3 passes through the pin shaft 33 b and the two sides of the cavity 22 . The side 2 is hinged, one end of the locking mechanism 3 is provided with a positioning part 32 , and the other end is provided with a button part 31 , and an elastic part 33 a is provided between the button part 31 and the bottom of the cavity 22 . The elastic part 33a adopts a spring. For the convenience of spring installation, an installation hole or a groove and an upward vertical cylinder can be provided at the bottom of the button part 31, and an installation hole or a vertical column can also be provided at the bottom of the cavity 22. The two ends of the spring are respectively placed in two mounting holes or grooves.

The above is only a schematic description of the utility model, and those skilled in the art should know that on the basis of not departing from the working principle of the utility model, various improvements can be made to the utility model, which all belong to the protection scope of the utility model .

Claims (18)

1. A length-adjustable spectacle leg is characterized in that it comprises a main spectacle leg, a secondary spectacle leg and a locking mechanism; The rear part of the main mirror leg is provided with a stretching part, and a plurality of positioning recesses are arranged on the stretching part; The front part of the auxiliary temple is provided with a cavity extending longitudinally, the stretching part is placed in the cavity, and the auxiliary temple is provided with a cavity for accommodating the locking mechanism; The locking mechanism includes a button part, a positioning part and an elastic part, the positioning part is provided with a positioning protrusion, and under the elastic force of the elastic part, the positioning protrusion can engage with the positioning concave part; By applying force to the button part, the positioning protrusion can be separated from the positioning concave part. 2. The spectacle arm with adjustable length according to claim 1, characterized in that, a longitudinal through hole is arranged on the key part, the stretching part passes through the longitudinal through hole, and the bottom part of the key part is provided with There is a transverse through groove intersecting the longitudinal through hole, the positioning protrusion is fixed in the transverse through groove, one end of the elastic part is against the bottom of the cavity, and the other end is connected to the bottom of the cavity. The bottom of the key portion abuts. 3. The adjustable-length spectacle arm according to claim 2, characterized in that, the head of the stretching part is provided with an anti-off boss, when the stretching part moves outward relative to the cavity , the key part can be in contact with the anti-off protrusion, preventing the stretching part from moving outward relative to the cavity; The platform is separated, so that the anti-loosening boss passes through the longitudinal through hole. 4. The spectacle arm with adjustable length according to claim 1, characterized in that, the key part is provided with a longitudinal through hole, the stretching part passes through the longitudinal through hole, and the bottom of the key part is provided with There is a vertical through hole, the vertical through hole communicates with the longitudinal through hole, the positioning protrusion is fixed in the longitudinal through hole, the positioning protrusion passes through the vertical through hole, and its head extends to the In the longitudinal through hole, one end of the elastic part abuts against the bottom of the cavity, and the other end abuts against the bottom of the key part. 5. The adjustable-length spectacle arm according to claim 4, characterized in that, the head of the stretching part is provided with an anti-loose boss, when the stretching part moves outward relative to the cavity , the key part can be in contact with the anti-off protrusion, preventing the stretching part from moving outward relative to the cavity; The platform is separated, so that the anti-loosening boss passes through the longitudinal through hole. 6. The adjustable-length spectacle arm according to claim 1, characterized in that, the locking mechanism is a sheet body extending longitudinally, and the middle part of the locking mechanism is connected to both sides of the cavity through a pin shaft. One end of the locking mechanism is provided with the positioning part, and the other end is slotted to divide the end of the locking mechanism into an elastic part and a button part, and the elastic part abuts against the bottom of the cavity. 7. The adjustable-length spectacle arm according to claim 1, characterized in that, the locking mechanism is a sheet body extending longitudinally, and the middle part of the locking mechanism is connected to both sides of the cavity through a pin shaft. One end of the locking mechanism is provided with the positioning part, the other end is provided with the button part, and the elastic part is arranged between the button part and the bottom of the cavity. 8. The adjustable-length spectacle arm according to claim 1, wherein the elastic part is one of spring, elastic plastic and rubber. 9. The adjustable-length spectacle arm according to claim 1, characterized in that, the opening direction of the cavity is set upwards or downwards. 10. An adjustable length spectacle leg, characterized in that it includes a main temple, a secondary temple and a locking mechanism; The front part of the auxiliary mirror leg is provided with a stretching part, and a plurality of positioning recesses are arranged on the stretching part; The rear part of the main temple is provided with a cavity extending longitudinally, the stretching part is placed in the cavity, and the main temple is provided with a cavity for accommodating the locking mechanism; The locking mechanism includes a button part, a positioning part and an elastic part, the positioning part is provided with a positioning protrusion, and under the elastic force of the elastic part, the positioning protrusion can engage with the positioning concave part; By applying force to the button part, the positioning protrusion can be separated from the positioning concave part. 11. The spectacle arm with adjustable length as claimed in claim 10, characterized in that, the key part is provided with a longitudinal through hole, the stretching part passes through the longitudinal through hole, and the bottom of the key part is provided with There is a transverse through groove intersecting the longitudinal through hole, the positioning protrusion is fixed in the transverse through groove, one end of the elastic part is against the bottom of the cavity, and the other end is connected to the bottom of the cavity. The bottom of the key portion abuts. 12. The adjustable-length spectacle arm according to claim 11, characterized in that, the head of the stretching part is provided with an anti-off boss, when the stretching part moves outward relative to the cavity , the key part can be in contact with the anti-off protrusion, preventing the stretching part from moving outward relative to the cavity; The platform is separated, so that the anti-loosening boss passes through the longitudinal through hole. 13. The spectacle arm with adjustable length according to claim 10, characterized in that, the key part is provided with a longitudinal through hole, the stretching part passes through the longitudinal through hole, and the bottom of the key part is provided with There is a vertical through hole, the vertical through hole communicates with the longitudinal through hole, the positioning protrusion is fixed in the longitudinal through hole, the positioning protrusion passes through the vertical through hole, and its head extends to the In the longitudinal through hole, one end of the elastic part abuts against the bottom of the cavity, and the other end abuts against the bottom of the key part. 14. The adjustable-length spectacle arm according to claim 13, characterized in that, the head of the stretching part is provided with an anti-off boss, when the stretching part moves outward relative to the cavity , the key part can be in contact with the anti-off protrusion, preventing the stretching part from moving outward relative to the cavity; The platform is separated, so that the anti-loosening boss passes through the longitudinal through hole. 15. The adjustable-length spectacle arm according to claim 10, characterized in that, the locking mechanism is a sheet body extending longitudinally, and the middle part of the locking mechanism is connected to both sides of the cavity through a pin shaft. One end of the locking mechanism is provided with the positioning part, and the other end is slotted to divide the end of the locking mechanism into an elastic part and a button part, and the elastic part abuts against the bottom of the cavity. 16. The adjustable-length spectacle arm according to claim 10, characterized in that, the locking mechanism is a sheet body extending longitudinally, and the middle part of the locking mechanism is connected to both sides of the cavity through a pin shaft. One end of the locking mechanism is provided with the positioning part, the other end is provided with the button part, and the elastic part is arranged between the button part and the bottom of the cavity. 17. The adjustable-length spectacle arm according to claim 10, wherein the elastic part is one of spring, elastic plastic and rubber. 18. The adjustable-length spectacle arm according to claim 10, characterized in that, the opening direction of the cavity is set upwards or downwards.