Telescopic earpiece and glasses

Abstract

The utility model belongs to the technical field of glasses processing, and particularly relates to a telescopic earpiece and glasses, the earpiece can be installed at the end part of a glasses frame, the earpiece comprises a first glasses leg and a second glasses leg, one end of the first glasses leg is connected with a pile head at the end part of the glasses frame, and the other end of the first glasses leg is provided with an extension section; one end of the second glasses leg is provided with a telescopic cavity which is matched with the extension section in an inserting manner; a lug seat is arranged on the top wall of one end, close to the first glasses leg, of the second glasses leg, a locking piece is mounted on the lug seat, and a limiting notch is formed in the position, corresponding to the locking piece, of the top wall of the second glasses leg; when the locking piece rotates on the lug base, part of the locking piece crosses the limiting notch to abut against the extending section. According to the glasses leg, when the glasses leg needs to stretch out and draw back, the locking piece is shifted, the first glasses leg and the second glasses leg are lengthened or shortened, and then the locking piece is used for locking; stepless adjustment of the length of the earpiece is realized; therefore, the use flexibility of the glasses is improved.

Description

Technical Field

[0001] This utility model belongs to the field of eyeglasses processing technology, specifically relating to a retractable temple for eyeglasses and eyeglasses. Background Technology

[0002] Eyeglasses generally consist of temples, frames, and lenses. Temples and frames are relatively standard, while lenses are custom-made and assembled based on the user's prescription. The frame has a nose pad in the center, and the edges of the frame are connected to the temples via posts. The temples can be rested on the ears for support. A rotatable hinge structure is located at the connection between the posts and the temples, allowing the glasses to be folded or put on by rotating the temples.

[0003] Some eyeglasses on the market have retractable temples for length adjustment. Referring to the retractable temples of metal frames disclosed in Chinese Patent Publication No. CN222461825 U, the extension section is inserted into the cavity of the connecting section, and an adjustment rod inside the extension section engages with a corresponding adjustment hole. The extension length is adjusted by the action of the adjustment rod and the adjustment hole. However, this adjustment method relies on the insertion of the adjustment rod and adjustment hole, resulting in a fixed adjustable length. In actual use, it is impossible to adjust the length within the adjustable range to any desired value, making it inconvenient. Further improvement is necessary. Utility Model Content

[0004] The purpose of this invention is to provide a retractable temple and glasses to solve the problem that existing glasses have a single adjustable temple length and are not flexible enough.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A retractable temple for eyeglasses, capable of being mounted on the end of an eyeglass frame, includes a first temple and a second temple. One end of the first temple is connected to a post at the end of the eyeglass frame, and the other end of the first temple has an extension section. One end of the second temple has a telescopic cavity that engages with the extension section. An ear seat is provided on the top wall of the second temple near the first temple, and a locking member is mounted on the ear seat. A limiting notch is provided on the top wall of the second temple corresponding to the position of the locking member. When the locking member rotates on the ear seat, a portion of the locking member crosses the limiting notch and abuts against the extension section to limit the movement of the extension section within the telescopic cavity.

[0007] In this application, when wearing glasses, the user can adjust the length of the temples according to actual needs and fix the adjusted length value. During adjustment, the locking device is released, and the second temple is flexibly lengthened or shortened, that is, the insertion depth between the first and second temples is adjusted relative to each other, and then locked by the locking device. During this adjustment process, the extension or shortening of the second temple is continuous, thus achieving stepless adjustment, high flexibility and adaptability, improving wearing comfort, convenience and flexibility, and high practicality.

[0008] Furthermore, the locking component includes a connecting shaft, a shaped limiting sleeve, and an eccentric adjusting block. The connecting shaft is rotatably mounted on the ear seat, and the shaped limiting sleeve is fixedly mounted on the connecting shaft and located above the limiting notch. The eccentric adjusting block is mounted on one end of the connecting shaft.

[0009] Furthermore, the radial cross-sectional shape of the irregularly shaped limiting sleeve includes four arc surfaces, namely a gap arc surface, a front transition arc surface, an abutment arc surface, and a rear transition arc surface; wherein, when the gap arc surface, the front transition arc surface, and the rear transition arc surface rotate to the limiting notch, they do not abut against the extension section, and the abutment arc surface abuts against the extension section when it rotates to the limiting notch.

[0010] Furthermore, the shape of the eccentric adjusting block is one of an equiangular spiral, an involute spiral, or an Archimedean spiral; the eccentric adjusting block is subject to its own gravity, and its center of gravity shifts to below the axis of the connecting shaft, which tends to drive the abutting arc surface of the irregularly shaped limiting sleeve to rotate to the limiting notch.

[0011] Furthermore, the top surface of the extension section is provided with two contact surfaces, and two irregularly shaped limiting sleeves are provided accordingly. Under the drive of the eccentric adjusting block, the two irregularly shaped limiting sleeves simultaneously abut against the two contact surfaces of the extension section.

[0012] This utility model also provides an eyeglass, including an eyeglass frame and retractable temples as described above; both ends of the eyeglass frame are integrally provided with posts, the ends of the posts are provided with double hinges, and the temples are hinged to the double hinges.

[0013] Furthermore, the ends of the temples of the eyeglasses are provided with anti-slip sleeves.

[0014] The utility model adopting the above technical solution has the following advantages:

[0015] In this application, the user can adjust the length of the temples as needed while using the glasses. The adjustment involves first releasing the locking mechanism, then flexibly lengthening or shortening the second temple to achieve the desired length; that is, adjusting the insertion depth between the first and second temples. Afterwards, the adjusted length is fixed by locking the mechanism. During this adjustment process, the extension or shortening of the second temple is continuous, thus achieving stepless adjustment, high flexibility and adaptability, and improving wearing comfort, convenience, and flexibility, resulting in high practicality. Attached Figure Description

[0016] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0017] Figure 1 This is a structural schematic diagram of an embodiment of eyeglasses according to the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of an embodiment of the retractable temple of eyeglasses according to the present invention;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a top view of an embodiment of the retractable temple of eyeglasses according to the present invention;

[0021] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the BB direction;

[0022] The symbols for the main components are explained below:

[0023] 100. Temple; 101. Anti-slip sleeve; 102. Second temple; 103. Locking element; 1031. Ear mount; 1032. Connecting shaft; 1033. Irregularly shaped limiting sleeve; 1034. Limiting notch; 1035. Eccentric adjustment block; 104. First temple; 105. Extension section; 110. Eyeglass frame; 120. Stud; 130. Screw. Detailed Implementation

[0024] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. Furthermore, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0025] like Figures 1-5 As shown, an embodiment of the present invention provides a pair of eyeglasses, including an eyeglass frame 110 and retractable temples 100. Both ends of the eyeglass frame 110 are integrally provided with posts 120, and the ends of the posts 120 are provided with double hinge heads. The temples 100 are hinged to the double hinge heads. A hinge pin is integrally provided at the front end of the temples 100, cooperating with the double hinge heads. The posts 120 are generally welded to the outer end of the eyeglass frame 110. The rotation axis of the double hinge heads and the hinge pin is provided as a stud 130 screwed into and threadedly connected to the double hinge heads. A limiting notch is provided on the outer side of the end of the posts 120, and a limiting protrusion is integrally provided at the end of the temples 100. When the temples 100 are opened, the limiting protrusion abuts against the limiting notch, restricting the temples 100 from opening further outward. The end of the temples 100 is a free end, and an anti-slip sleeve 101 is fitted onto the free end. The anti-slip sleeve 101 is made of transparent silicone.

[0026] In this embodiment, the temple 100 includes a first temple 104 and a second temple 102. One end of the first temple 104 is connected to the post 120, and the other end of the first temple 104 is provided with an extension section 105. One end of the second temple 102 is provided with a telescopic cavity that engages with the extension section 105. An ear seat 1031 is provided on the top wall of the second temple 102 near the first temple 104. A locking member 103 is installed on the ear seat 1031. A limiting notch 1034 is provided on the top wall of the second temple 102 corresponding to the position of the locking member 103. When the locking member 103 rotates on the ear seat 1031, part of the locking member 103 crosses the limiting notch 1034 and abuts against the extension section 1052 to limit the movement of the extension section 105 in the telescopic cavity. The telescopic adjustment of the temple 100 is as follows: the length of the temple 100 is adjusted as needed, and the adjusted length is fixed; during adjustment, the locking member 103 is released, and the second temple 102 is flexibly lengthened or shortened, that is, the insertion depth between the first temple 104 and the second temple 102 is adjusted relative to each other, and then locked by the locking member 103; in this adjustment process, the lengthening or shortening of the second temple 102 is continuous, thus achieving stepless adjustment, high flexibility and adaptability, improving wearing comfort, convenience and flexibility, and high practicality.

[0027] In this embodiment, the locking component 103 includes a connecting shaft 1032, a shaped limiting sleeve 1033, and an eccentric adjusting block 1035. The connecting shaft 1032 is rotatably mounted on the ear seat 1031, and the shaped limiting sleeve 1033 is fixedly mounted on the connecting shaft 1032 and located above the limiting notch 1034. The eccentric adjusting block 1035 is mounted on one end of the connecting shaft 1032. The connecting shaft 1032 and the eccentric adjusting block 1035 can be machined in one day; while the shaped limiting sleeve 1033 can be mounted on the connecting shaft 1032 by means of a keyway connection and is locked and fixed by a retaining ring.

[0028] For example, the radial cross-sectional shape of the irregular limiting sleeve 1033 includes four arc surfaces, namely a gap arc surface, a front transition arc surface, an abutment arc surface, and a rear transition arc surface; when the gap arc surface, the front transition arc surface, and the rear transition arc surface rotate to the limiting notch 1034, they do not abut against the extension section, while the abutment arc surface rotates to the limiting notch 1034 and abuts against the extension section 105.

[0029] The eccentric adjustment block 1035, under its own weight, tends to rotate to a position below the axis of the connecting shaft 1032. Therefore, if any of the gap arc surface, the front transition arc surface, or the rear transition arc surface is at the position of the limiting notch 1034, the eccentric adjustment block 1035 will cause the abutment arc surface to rotate to the limiting notch 1034. Only when the friction between the abutment arc surface and the top wall of the extension section 105 can completely overcome the influence of the eccentric adjustment block 1035 will the eccentric adjustment block 1035 not rotate. At this time, the irregular limiting sleeve 1033 also locks the extension section 105 due to the friction between the abutment arc surface and the top wall of the extension section 105.

[0030] For example, the eccentric adjustment block 105 is shaped like an equiangular spiral; such an eccentric adjustment block 1035, under its own gravity, has its center of gravity shifted to below the axis of the connecting shaft 1032, and tends to drive the abutting arc surface of the irregular limiting sleeve 1033 to rotate to the limiting notch 1034.

[0031] For example, the irregularly shaped limiting sleeve 1033 can also be selected as a cam to achieve rotational positioning of the extension section 105.

[0032] In fact, the shape of the eccentric adjustment block 1035 in this embodiment can also be selected as an involute spiral or an Archimedes spiral.

[0033] In this embodiment, the top surface of the extension section 105 has two contact surfaces arranged in a stepped manner. Two irregularly shaped limiting sleeves 1033, corresponding to each contact surface, are concentrically mounted on the connecting shaft 1032. Driven by the eccentric adjusting block 1035, both sleeves 1033 simultaneously abut against the two contact surfaces of the extension section 105. This structural design allows for double locking through the action of the eccentric adjusting block 1035, improving the locking effect and reliability.

[0034] This embodiment provides a retractable temple for eyeglasses, and based on this temple, provides eyeglasses. The temple 100 allows for flexible length adjustment by the user when wearing the eyeglasses, according to actual needs. During adjustment, the locking member 103 is first released, and then the second temple 102 is flexibly lengthened or shortened to achieve the desired length. Afterwards, the locking member 103 is used to lock the adjusted length of the temple 100. During this adjustment process, the extension or shortening of the second temple 102 is continuous, thus achieving stepless adjustment of the temple 100, resulting in high flexibility, adaptability, and practicality.

[0035] The above provides a detailed description of a retractable temple for eyeglasses provided by this utility model. The specific embodiments are described only to aid in understanding the method and core concept of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A retractable temple for eyeglasses, capable of being installed at the end of an eyeglass frame, comprising a first temple (104) and a second temple (102), one end of the first temple (104) being connected to a post (120) at the end of the eyeglass frame, the other end of the first temple (104) being provided with an extension section (105), and one end of the second temple (102) being provided with a telescopic cavity that engages with the extension section (105); characterized in that, The second temple (102) has an ear seat (1031) on its top wall near the first temple (104). A locking member (103) is installed on the ear seat (1031). A limiting notch (1034) is formed on the top wall of the second temple (102) corresponding to the position of the locking member (103). When the locking member (103) rotates on the ear seat (1031), a part of the locking member (103) crosses the limiting notch (1034) and abuts against the extension section (105) to limit the movement of the extension section (105) in the telescopic cavity.

2. The telescopic eyeglasses temple according to claim 1, wherein, The locking component (103) includes a connecting shaft (1032), a shaped limiting sleeve (1033), and an eccentric adjusting block (1035). The connecting shaft (1032) is rotatably mounted on the ear seat (1031), and the shaped limiting sleeve (1033) is fixedly mounted on the connecting shaft (1032) and located above the limiting notch (1034). The eccentric adjusting block (1035) is mounted on one end of the connecting shaft (1032).

3. The telescopic eyeglasses temple according to claim 2, wherein, The radial cross-sectional shape of the irregularly shaped limiting sleeve (1033) includes four arc surfaces, namely a gap arc surface, a front transition arc surface, an abutment arc surface, and a rear transition arc surface; wherein, when the gap arc surface, the front transition arc surface, and the rear transition arc surface rotate to the limiting notch (1034), they do not abut against the extension section (105), and when the abutment arc surface rotates to the limiting notch (1034), it abuts against the extension section (105).

4. The telescopic eyeglasses temple according to claim 3, wherein, The eccentric adjusting block (1035) is shaped like one of an equiangular spiral, an involute spiral, or an Archimedean spiral. Under the influence of its own gravity, the center of gravity of the eccentric adjusting block (1035) shifts to below the axis of the connecting shaft, and tends to rotate the abutting arc surface of the irregular limiting sleeve (1033) to the limiting notch (1034).

5. The telescopic eyeglass stem of claim 2, wherein, The top surface of the extension section (105) is provided with two contact surfaces, and two irregularly shaped limiting sleeves (1033) are provided accordingly. Under the drive of the eccentric adjusting block (1035), the two irregularly shaped limiting sleeves (1033) simultaneously abut against the two contact surfaces of the extension section (105).

6. Eyeglasses, characterized in that, It includes an eyeglass frame (110) and a retractable temple (100) as described in any one of claims 1-5; the eyeglass frame (110) has a post (120) integrally provided at both ends, the end of the post (120) is provided with a double hinge head, and the temple (100) is hinged to the double hinge head.

7. The eyeglasses of claim 6, wherein, The end of the temple (100) of the eyeglasses is provided with an anti-slip sleeve (101).

Images