Telescopic glasses fixing device

Abstract

The utility model provides a telescopic glasses fixing device which comprises the following components: a hanging rope which comprises a hanging rope main body and fixing members which are respectively positioned at two end parts of the hanging rope main body; the storage adjusting assembly comprises a first shell, a second shell, a torsion spring and a rotating disc, and a containing cavity is formed between the first shell and the second shell; the rotating disc is in a disc shape and comprises a containing groove and a wire clamping groove, and a wire winding groove is formed in the periphery of the rotating disc. The shell is provided with a containing cavity, the rotating disc is arranged in the containing cavity, the torsion spring is arranged in a containing groove of the rotating disc, the outer end of the torsion spring is fixed to the rotating disc, and the inner end of the torsion spring is fixed to the shell; one part of the hanging rope body is embedded into the wire clamping groove, and the two ends of the hanging rope body penetrate through the two communicating holes to be exposed out of the containing cavity. According to the utility model, not only can the wearing stability of the glasses be improved, but also the turntable can be prevented from being blocked by the sling main body.

Description

Technical Field

[0001] The utility model relates to the field of glasses accessories, and more particularly to a telescopic glasses fixing device. Background Art

[0002] With the rise of the Internet, more and more people are wearing glasses. However, since glasses are directly placed on the bridge of the nose and ears, they are very easy to slip or even break when doing strenuous exercise or being hit by external forces, which not only affects normal work and study but also causes relatively large economic losses. The main reason is that the connection between the glasses and the head is not stable enough.

[0003] Currently, there are devices on the market for fixing glasses, which mainly use a hanging rope to fix the legs of the glasses and hang them around the neck. This operation can only be used to prevent the glasses from falling to the ground and reduce damage to the glasses. It cannot effectively increase the stability of the glasses when worn, and the hanging rope is very easy to cause entanglement when stored. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a telescopic glasses fixing device to address the problems that the above-mentioned hanging rope cannot increase the stability of glasses when worn and is easily tangled when stored.

[0005] The present invention solves the above-mentioned technical problem by providing a telescopic glasses fixing device, comprising:

[0006] A lanyard comprising a lanyard body and fixing members located at two ends of the lanyard body, wherein the lanyard is fixed to the free ends of two glasses legs through the two fixing members;

[0007] The storage and adjustment assembly includes a first housing, a second housing, a torsion spring, and a turntable. The first housing is buckled onto the second housing, and a receiving cavity is formed between the first and second housings. The side wall of the receiving cavity has two communicating holes. The turntable is disc-shaped and includes a receiving groove and a wire clamping groove. The outer circumference of the turntable is respectively formed with convex rings at two axial ends, and a wire winding groove is formed between the two convex rings. The two ends of the wire clamping groove are respectively connected to the wire winding groove.

[0008] The turntable is installed in the accommodating cavity, the torsion spring is installed in the accommodating groove of the turntable, and the outer end of the torsion spring is fixed to the turntable, and the inner end of the torsion spring is fixed to the first shell or the second shell; a part of the hanging rope body is embedded in the wire clamping groove, and the two ends of the hanging rope body are respectively exposed to the outside of the accommodating cavity through two connecting holes; the turntable in the accommodating cavity rotates under the action of the elastic restoring force of the torsion spring, and causes the hanging rope body to be coiled in the wire winding groove.

[0009] As a further improvement of the present invention, the first shell includes a fixing column vertically connected to the inner surface, and the fixing column has a clamping groove; the turntable has a central through hole adapted to the fixing column, and the central through hole axially extends from the first end face of the turntable to the accommodating groove, and when the turntable is assembled to the accommodating cavity, the fixing column passes through the central through hole, and the inner end of the torsion spring is clamped in the clamping groove of the fixing column.

[0010] As a further improvement of the present invention, the openings of the wire clamping groove and the accommodating groove are both located on the first end surface of the turntable, and the wire clamping groove partially surrounds the accommodating groove.

[0011] As a further improvement of the present invention, the second end face of the turntable has a limiting groove, the inner surface of the second shell has a radial groove, the turntable is installed in the accommodating cavity with the second end face facing the second shell, and steel balls are embedded between the limiting groove and the radial groove, and the rotation of the turntable is limited by the steel balls.

[0012] As a further improvement of the present invention, the limiting groove includes two groove groups, and the two groove groups are centrally symmetrically arranged with respect to the rotation center of the turntable.

[0013] As a further improvement of the present invention, each of the groove groups includes a first arc-shaped groove, a second arc-shaped groove, a first connecting groove and a second connecting groove, the first arc-shaped groove is adjacent to the outer edge of the turntable, the second arc-shaped groove is adjacent to the central through hole, the first arc-shaped groove and the second arc-shaped groove are connected through the first connecting groove and the second connecting groove respectively, and the depth of the first connecting groove and the second connecting groove is less than the depth of the first arc-shaped groove and the second arc-shaped groove.

[0014] As a further improvement of the present invention, each of the groove groups includes a third connecting groove and a fourth connecting groove, the depth of the third connecting groove and the fourth connecting groove is less than the depth of the first arc groove and the second arc groove, and the first arc grooves of the two groove groups are connected through the third connecting groove, and the second arc grooves of the two groove groups are connected through the fourth connecting groove.

[0015] As a further improvement of the present invention, the center lines of the first arc-shaped groove and the second arc-shaped groove do not coincide with the arc centered on the rotation center of the turntable.

[0016] As a further improvement of the present invention, the two communicating holes are arranged at intervals of 180° on the side wall of the accommodating cavity, and the positions where the wire clamping groove communicates with the wire winding groove are arranged at intervals of 180° on the turntable.

[0017] As a further improvement of the present invention, the fixing member is made of elastic material, and each of the fixing members includes a plug hole for inserting the glasses leg, and the lanyard body is connected to one end of the fixing member facing away from the plug hole.

[0018] The utility model has the following beneficial effects: the turntable is driven to rotate in the accommodating cavity by twisting the mainspring, and the turntable winds the hanging rope body in the winding groove during the rotation process, which not only can realize the storage of the hanging rope body and avoid the hanging rope body from being entangled during the winding process, but also can continuously pull the glasses feet when wearing glasses, thereby improving the stability of wearing glasses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the exploded structure of the telescopic glasses fixing device provided by an embodiment of the utility model.

[0020] Figure 2 It is a structural schematic diagram of a turntable in a telescopic glasses fixing device provided by an embodiment of the utility model.

[0021] Figure 3 It is a structural schematic diagram of the first shell in the telescopic glasses fixing device provided by an embodiment of the present utility model.

[0022] Figure 4 It is a structural schematic diagram of the second shell in the telescopic glasses fixing device provided by an embodiment of the present utility model.

[0023] Figure 5 This is another structural schematic diagram of the turntable in the telescopic glasses fixing device provided by an embodiment of the present utility model.

[0024] Figure 6 This is another structural schematic diagram of the turntable in the telescopic glasses fixing device provided by an embodiment of the present utility model.

[0025] Figure 7 It is a schematic diagram of the upper limit slot on the turntable in the telescopic glasses fixing device provided by an embodiment of the present utility model. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] like Figure 1Figure 2 is a schematic diagram of the structure of a telescopic eyeglasses fixing device provided by an embodiment of the present invention. The telescopic eyeglasses fixing device can be fixed to the temples of eyeglasses to facilitate wearing the glasses. The telescopic eyeglasses fixing device of this embodiment includes a lanyard and a storage and adjustment assembly, wherein the main portion of the lanyard can be stored in the storage and adjustment assembly to prevent the main portion of the lanyard from becoming entangled.

[0028] The lanyard includes a lanyard body 11 and two fixing members 12, wherein the two fixing members 12 are respectively connected to the two ends of the lanyard body 11, and the lanyard is fixed to the free ends of the two glasses' temples through the two fixing members 12. In one embodiment of the present invention, the fixing members 12 are made of an elastic material (such as silicone or elastic rubber), and each fixing member 12 includes a plug hole for inserting the glasses' temple (the plug hole has a radial dimension smaller than the radial dimension of the free end of the glasses' temple, and the plug hole can change its shape and size when subjected to force). The lanyard body 11 is connected to the end of the fixing member 12 facing away from the plug hole. For example, the fixing member 12 is generally cylindrical, and the portion where it connects to the lanyard body 11 is conical. The plug hole is formed by a blind hole in the main body of the cylindrical fixing member 12, and the opening of the plug hole faces away from the lanyard body 11. When in use, the free end of the glasses' temple is inserted into the plug hole, and the free end of the glasses' temple is wrapped by the side wall of the plug hole. Of course, in actual applications, the fixing member 12 may also adopt other structures as long as it can be fixed to the temple of the glasses, which will not be described in detail here.

[0029] The storage and adjustment assembly includes a first housing 21, a second housing 22, a torsion spring 23, and a turntable 24. The first and second housings 21, 22 can be snapped together to form a receiving chamber between them. The sidewalls of the receiving chamber have two connecting holes, connecting the receiving chamber to the exteriors of the first and second housings 21, 22 through the two connecting holes. The turntable 24 is disc-shaped and includes a receiving groove 241 and a wire-receiving groove 242. A protruding ring 248 is formed at each axial end of the outer circumference of the turntable 24, forming a wire-receiving groove 244 between the two protruding rings 248. The ends of the wire-receiving groove 242 are connected to the wire-receiving groove 244. For example, the turntable 24 has two avoidance grooves 247, connecting the ends of the wire-receiving groove 242 to the wire-receiving groove 244 via the avoidance grooves 247. Specifically, the turntable may include an annular sidewall 243, and the receiving groove 241 and the wire clamping groove 242 are respectively located in the area surrounded by the sidewall 243, and the wire clamping groove 242 is located on the side of the receiving groove 241. For example, the wire clamping groove 242 and the receiving groove 241 are separated by an arc-shaped baffle 246. That is, the openings of the wire clamping groove 242 and the receiving groove 241 are both located on the first axial end surface of the turntable 24, and the wire clamping groove 242 partially surrounds the receiving groove 241.

[0030] The turntable 24 is mounted within the receiving chamber, and the torsion spring 23 is mounted within the receiving slot 241 of the turntable 24. The outer end of the torsion spring 23 is fixed to the turntable 24 (e.g., to the sidewall 243), while the inner end of the torsion spring 23 is fixed to the first housing 21 or the second housing 22. A portion of the lanyard body 11 is inserted into the cable retaining slot 242, and the two ends of the lanyard body 11 are respectively exposed to the outside of the receiving chamber through two connecting holes. In other words, the two fixing members 12 of the lanyard are located outside the receiving chamber. The turntable 24 rotates within the receiving chamber under the elastic restoring force of the torsion spring 23, causing the lanyard body 11 to wind within the cable winding slot 244. Specifically, the two connecting holes are spaced 180 degrees apart on the sidewall of the receiving chamber. Accordingly, the locations where the cable retaining slot 242 and the cable winding slot 244 connect are also spaced 180 degrees apart on the turntable 24, facilitating the connection of eyeglass temples and the operation of the lanyard.

[0031] In a specific implementation, the torsion spring 23 is first placed in the receiving groove 241 of the turntable 24, and the lanyard body 11 is coiled into the winding groove 244. The turntable 24 is then mounted on the first housing 21 or the second housing 22. Finally, the first housing 21 and the second housing 22 are engaged. When the lanyard is not under force, the turntable 24, under the action of the torsion spring 23, keeps the lanyard body 11 coiled in the winding groove 244. When wearing glasses, the lanyard is pulled, and the turntable 24 rotates under the action of the lanyard, simultaneously causing elastic deformation of the torsion spring 23. After the glasses are worn (at this time, at least a portion of the lanyard body 11 is pulled out of the receiving cavity and attached to the back of the head together with the storage and adjustment assembly), the torsion spring 23 applies a torque to the turntable 24 under the action of the elastic restoring force. After the turntable 24 coils the excess lanyard body 11 into the winding groove 244, it continues to apply force to the lanyard body 11, thereby greatly improving the wearing stability of the glasses. Moreover, the existence of the winding groove 244 not only facilitates the installation of the turntable 24, but also prevents the lanyard body 11 from leaving the outer peripheral surface of the turntable 24 when winding, thereby preventing the turntable 24 from getting stuck.

[0032] Those skilled in the art will appreciate that the first housing 21, the second housing 22 and the turntable 24 can all be made of hard materials such as engineering plastics or metals, while the torsion spring 23 can be made of steel sheets. Furthermore, the shape of the accommodating cavity can be adapted to the shape of the turntable 24, so that the turntable 24 can rotate better in the accommodating cavity. Figure 3 、 Figure 4As shown, the first housing 21 has two first through-slots 211, while the second housing 22 has two second through-slots 221. When the first and second housings 21, 22 are engaged, each first through-slot 211 and each second through-slot 221 overlap, thereby forming a communication hole. Of course, in actual applications, it is also possible to provide only the first through-slots 211 on the first housing 21 or only the second through-slots 221 on the second housing 22, and still form a communication hole.

[0033] In one embodiment of the present invention, Figure 3 As shown, the first housing 21 includes a fixing post 212 vertically connected to the inner surface, and the fixing post 212 has a snap-in groove 2121. Correspondingly, the turntable 24 has a central through hole 245 adapted to the fixing post 212. The central through hole 245 axially extends from the first end surface of the turntable 24 to the receiving groove 241. When the turntable 24 is assembled into the receiving cavity, the fixing post 212 passes through the central through hole 245, and the inner end of the torsion spring 23 is snap-fitted into the snap-in groove 2121 of the fixing post 212. The fixing post 212 not only secures the inner end of the torsion spring 23, but also limits the rotation of the turntable 24, i.e., allows the turntable 24 to rotate around the fixing post 212.

[0034] In particular, the inner side surface of the second housing 22 may have an escape groove 223, such as Figure 4 As shown, when the first shell 21 and the second shell 22 are engaged, the free end of the fixing post 212 can be embedded in the avoidance groove 223, thereby increasing the structural strength of the fixing post 212 and preventing it from breaking when the lanyard is pulled. Furthermore, a fixing hole 224 can be provided in the second shell 22. A screw passing through the fixing hole 224 and tightened into the fixing post 212 can be used to secure the first shell 21 and the second shell 22 together, thereby improving the stability of the connection between the first shell 21 and the second shell 22. Furthermore, in specific applications, the shapes of the first shell 21 and the second shell 22 can be designed as needed, as long as a cavity for accommodating the turntable is formed between the first shell 21 and the second shell 22.

[0035] Combine Figure 4-Figure 7As shown, in one embodiment of the present invention, the second end surface of the turntable 24 is provided with a limit groove. Correspondingly, the inner surface of the second shell 22 is provided with a radial groove 222. The turntable 24 is installed in the accommodating cavity with the second end surface facing the second shell 22. A steel ball is embedded between the limit groove and the radial groove 222, and the rotation of the turntable is limited by the steel ball. Specifically, when the hanging rope is pulled to rotate the turntable 24, the steel ball slides along the radial groove 222 under the guidance of the limit groove. When the hanging rope is released, the turntable 24 rotates under the drive of the torsion spring 23, and the steel ball slides along the radial groove 222 under the guidance of the limit groove. Since the steel ball is simultaneously subjected to forces in both the limit groove and the radial groove 222, it is locked in a preset position, preventing the turntable 24 from further rotating. That is, through the above structure, the length of the hanging rope exposed outside the accommodating cavity can be kept fixed, thereby facilitating the wearing of glasses.

[0036] In particular, the limiting grooves include two groove groups, and the two groove groups are centrally symmetrically arranged with respect to the rotation center of the turntable 24 , thereby facilitating limiting the rotation of the turntable 24 .

[0037] like Figure 4 、 Figure 5 As shown, in one embodiment of the present invention, each groove group includes a first arcuate groove 2491, a second arcuate groove 2492, a first connecting groove 2493, and a second connecting groove 2494, wherein the first arcuate groove 2491 is adjacent to the outer edge of the rotating disk 24, and the second arcuate groove 2492 is adjacent to the central through hole 245. The first arcuate groove 2491 and the second arcuate groove 2492 are connected by the first connecting groove 2493 and the second connecting groove 2494, respectively, and the depth of the first connecting groove 2493 and the second connecting groove 2494 is smaller than the depth of the first arcuate groove 2491 and the second arcuate groove 2492. That is, the first arcuate groove 2491 and the second arcuate groove 2492 have two connecting positions, and the depth of the connecting positions is relatively small. Thus, when the turntable 24 rotates, the steel ball passes through the first connecting groove 2493 and the second connecting groove 2494. If the torque is relatively small (i.e., when the turntable 24 is driven by the torsion spring 23), the steel ball will get stuck in the first connecting groove 2493 or the second connecting groove 2494, preventing the turntable from continuing to rotate. Only when the hanging rope is pulled to cause the steel ball to leave the first connecting groove 2493 or the second connecting groove 2494 (for example, from the first arcuate groove 2491 through the first connecting groove 2493 or the second connecting groove 2494 into the second arcuate groove 2492) can the turntable 24 be driven to rotate again by the torsion spring 23, causing the hanging rope body 11 to be wound around the turntable 24.

[0038] In addition, each groove set includes a third connecting groove 2495 and a fourth connecting groove 2496. The depth of the third connecting groove 2495 and the fourth connecting groove 2496 is less than that of the first arcuate groove 2491 and the second arcuate groove 2492. The first arcuate groove 2491 of the two groove sets is connected by the third connecting groove 2495, and the second arcuate groove 2492 of the two groove sets is connected by the fourth connecting groove 2496. Similarly, when the hanging rope is released and the rotating disk 24 is driven by the torsion spring 23 to rotate, causing the steel ball to engage the third connecting groove 2495 or the fourth connecting groove 2496, the steel ball will lock the rotating disk 24, thereby maintaining the length of the hanging rope. After the hanging rope is further pulled, causing the steel ball to exit the third connecting groove 2495 or the fourth connecting groove 2496, the rotating disk 24 can continue to rotate due to the torsion spring 23, causing the pull rope body 11 to wind around the rotating disk 24.

[0039] In particular, the center lines of the first arcuate groove 2491 and the second arcuate groove 2492 do not coincide with the arc centered on the rotation center of the turntable 24. That is, the first arcuate groove 2491 and the second arcuate groove 2492 are both irregular arcs, thereby facilitating the insertion of the steel ball into the first connecting groove 2493, the second connecting groove 2494, the third connecting groove 2495, or the fourth connecting groove 2496.

[0040] It should be noted that Figure 5 and Figure 6 The lines other than the outer contour are mainly used to show the arc structure.

[0041] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A telescopic glasses fixing device, characterized in that: include: A lanyard comprising a lanyard body and fixing members located at two ends of the lanyard body, wherein the lanyard is fixed to the free ends of two glasses legs through the two fixing members; The storage and adjustment assembly includes a first housing, a second housing, a torsion spring, and a turntable. The first housing is buckled onto the second housing, and a receiving cavity is formed between the first and second housings. The side wall of the receiving cavity has two communicating holes. The turntable is disc-shaped and includes a receiving groove and a wire clamping groove. The outer circumference of the turntable is respectively formed with convex rings at two axial ends, and a wire winding groove is formed between the two convex rings. The two ends of the wire clamping groove are respectively connected to the wire winding groove. The turntable is installed in the accommodating cavity, the torsion spring is installed in the accommodating groove of the turntable, and the outer end of the torsion spring is fixed to the turntable, and the inner end of the torsion spring is fixed to the first shell or the second shell; a part of the hanging rope body is embedded in the wire clamping groove, and the two ends of the hanging rope body are respectively exposed to the outside of the accommodating cavity through two connecting holes; the turntable in the accommodating cavity rotates under the action of the elastic restoring force of the torsion spring, and causes the hanging rope body to be coiled in the wire winding groove.

2. The telescopic glasses fixing device according to claim 1, characterized in that: The first shell includes a fixing column vertically connected to the inner surface, and the fixing column has a snap-in groove; the turntable has a central through hole adapted to the fixing column, the central through hole axially extends from the first end face of the turntable to the accommodating groove, and when the turntable is assembled to the accommodating cavity, the fixing column passes through the central through hole, and the inner end of the torsion spring is snapped into the snap-in groove of the fixing column.

3. The telescopic glasses fixing device according to claim 2, characterized in that: The openings of the wire clamping slot and the accommodating slot are both located on the first end surface of the rotating disk, and the wire clamping slot partially surrounds the accommodating slot.

4. The telescopic glasses fixing device according to claim 3, characterized in that: The second end surface of the turntable has a limiting groove, and the inner surface of the second shell has a radial groove. The turntable is installed in the accommodating cavity with the second end surface facing the second shell, and a steel ball is embedded between the limiting groove and the radial groove, and the rotation of the turntable is limited by the steel ball.

5. The telescopic glasses fixing device according to claim 4, characterized in that: The limiting groove includes two groove groups, and the two groove groups are centrally symmetrically arranged with respect to the rotation center of the turntable.

6. The telescopic glasses fixing device according to claim 5, characterized in that: Each of the groove groups includes a first arcuate groove, a second arcuate groove, a first connecting groove and a second connecting groove, the first arcuate groove is adjacent to the outer edge of the turntable, the second arcuate groove is adjacent to the central through hole, the first arcuate groove and the second arcuate groove are connected through the first connecting groove and the second connecting groove respectively, and the depth of the first connecting groove and the second connecting groove is less than the depth of the first arcuate groove and the second arcuate groove.

7. The telescopic glasses fixing device according to claim 6, characterized in that: Each of the groove groups includes a third connecting groove and a fourth connecting groove, the depths of the third connecting groove and the fourth connecting groove are less than the depths of the first arc-shaped groove and the second arc-shaped groove, and the first arc-shaped grooves of the two groove groups are connected through the third connecting groove, and the second arc-shaped grooves of the two groove groups are connected through the fourth connecting groove.

8. The telescopic glasses fixing device according to claim 6, characterized in that: The center lines of the first arc-shaped groove and the second arc-shaped groove do not coincide with the arc centered on the rotation center of the turntable.

9. The telescopic glasses fixing device according to any one of claims 1 to 8, characterized in that: The two communicating holes are arranged at intervals of 180 degrees on the side wall of the accommodating cavity, and the positions where the wire clamping groove communicates with the wire winding groove are arranged at intervals of 180 degrees on the turntable.

10. The telescopic glasses fixing device according to any one of claims 1 to 8, characterized in that: The fixing parts are made of elastic material, and each of the fixing parts comprises a plug hole for inserting the glasses leg, and the lanyard body is connected to one end of the fixing part facing away from the plug hole.

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