A type of easily detachable neckband reading glasses

Abstract

A detachable neckband reading glasses includes a first frame, a second frame, and two temples hinged to either the first or second frame. One end of the first frame has an insertion portion; one end of the second frame has a connecting portion with a slot for detachable connection to the insertion portion. An elastic arm is located on either side of the insertion portion, extending along the insertion direction, with an outward-facing positioning protrusion at its free end. The inner wall of the slot has a corresponding positioning hole. When the insertion portion is inserted into the slot, the elastic arm deforms under pressure and repositions itself when the positioning protrusion reaches the positioning hole. Applying a separation force to the first and / or second frame deforms the elastic arm and disengages the positioning protrusion from the positioning hole. No tools are required; the glasses can be disassembled and assembled with simple insertion and removal, greatly facilitating use by the elderly. The combination of the insertion structure and the elastic buckle provides multi-dimensional constraints, ensuring a stable and secure connection. Its mechanical strength is superior to magnetic connections, resulting in a longer service life.

Description

Technical Field

[0001] This utility model relates to the field of optical eyewear technology, specifically to a detachable neckband reading glasses. Background Technology

[0002] Reading glasses are eyeglasses used by people whose eyesight is impaired by age. However, they cannot be worn continuously, so there is a need to alternate between wearing and taking them off. For convenience, some users hang their reading glasses around their necks when not in use.

[0003] For example, Chinese patent CN203811914U discloses a pair of reading glasses, including a frame, temples, and lenses. The frame consists of a left frame and a right frame, which are connected by magnets. There is one temple, with one end hinged to the left frame and the other end hinged to the right frame. When the left and right frames are connected by magnets, they form a closed ring. In this configuration, even if the glasses fall from the bridge of the nose, they will not fall to the ground, preventing the lenses from breaking.

[0004] However, connecting solely with magnets is insufficient to provide adequate connection stability and is prone to misalignment, affecting usability. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a neck-hanging reading glasses that are easy to disassemble.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A detachable neckband reading glasses, comprising a first frame, a second frame, and two temples hinged to either the first or second frame. The first frame has an insertion part at one end; One end of the second frame is provided with a connecting part, and the connecting part is provided with a slot for detachable connection with the insertion part; An elastic arm is provided on either side of the insertion part. The elastic arm is arranged along the insertion direction, and its free end is provided with an outward positioning protrusion. The inner wall of the slot is provided with a corresponding positioning hole. When the insertion part is inserted into the slot, the elastic arm is deformed by pressure and resets and snaps into place when the positioning protrusion reaches the positioning hole; By applying a separation force to the first and / or second frame, the elastic arm is deformed and the positioning protrusion is disengaged from the positioning hole.

[0007] The insertion part has a clearance hole, one end of the elastic arm is integrally connected to the inner wall of one side of the clearance hole, and its main body is suspended above the clearance hole.

[0008] The end face of the connecting part forms a first mating surface, and the insertion part or the first frame is provided with a corresponding second mating surface. When the insertion part is fully engaged with the slot, the first mating surface and the second mating surface are in contact.

[0009] The slot opening edge is provided with a guide bevel or guide radius.

[0010] The cross-section of the positioning protrusion is circular or elliptical; and / or, the positioning protrusion is provided with guide slopes on the front and rear sides in the insertion direction.

[0011] The ends of the two temples are connected by a connecting strap, forming a closed ring.

[0012] The connecting band is made of an elastic material.

[0013] The end of the connecting strap is provided with a sleeve hole, and the end of the temple is inserted into the sleeve hole and is interference-fitted with the sleeve hole.

[0014] The beneficial effects of this invention are: No tools are required; disassembly and assembly of the glasses can be completed with simple plugging and unplugging actions, greatly facilitating use by the elderly. The combination of the plug-in structure and the elastic buckle provides multi-dimensional constraint, ensuring a stable connection that is not easily loosened. Its mechanical strength is superior to magnetic connection methods, resulting in a longer service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the frame of this utility model when they are joined together.

[0016] Figure 2 This is a schematic diagram of the structure of the frame when the mirror is separated according to this utility model.

[0017] Figure 3 This is the front view of the present invention (when separated).

[0018] Figure 4 This is a schematic diagram of the structure of the first frame.

[0019] Figure 5 This is a structural diagram of the first frame from another direction.

[0020] Figure 6 This is a schematic diagram of the second frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] like Figure 1 and Figure 3 As shown, this utility model discloses a detachable neckband reading glasses, which includes a first frame 100, a second frame 200, and two temples 300 hinged to either the first frame 100 or the second frame 200. The first frame 100 and the second frame 200 together form a complete frame to accommodate the lenses. The ends of the two temples 300 are connected by a connecting strap 400, forming a closed ring. The first frame 100 and the second frame 200 can be relatively separated (e.g., ...). Figure 2 As shown in the diagram, it can be hung around the neck via a connecting strap when not in use. This connecting strap is made of an elastic material, and in some other embodiments, it can also be in the form of a woven rope, metal chain, etc.

[0024] like Figure 3 As shown, the left end of the first frame 100 (with...) Figure 3 (Taking a perspective example) It has an integrally formed insertion part 110. The side wall of the insertion part 110 has a through clearance hole 113 (e.g.) Figure 4 As shown, an elastic arm 111 is formed. One end of the elastic arm 111 is connected to the inner wall of the clearance hole 113, and its main body is suspended. The free end of the elastic arm 111 is provided with an outwardly protruding positioning protrusion 112. In this embodiment, the cross-section of the positioning protrusion 112 is circular, and the front edge of the insertion part 110 is rounded. Its overall shape on the elastic arm is hemispherical, and the slightly higher longitudinal design allows it to be better limited.

[0025] like Figure 6As shown, one end of the second frame 200 is provided with a connecting part 210, which has a slot 211 for detachable connection with the insertion part 110. A corresponding connecting part 210 is provided on the left end of the second frame 200, and a slot 211 matching the shape of the insertion part 110 is formed inside the connecting part 210. A guide bevel 213 is machined on the opening edge of the slot 211, located at the front end of the positioning hole 212, to facilitate the deformation of the elastic arm. A positioning hole 212 corresponding to the position of the positioning protrusion 112 is formed on the inner wall of the slot 211. The end face of the connecting part 210 forms a first mating surface 214, while the end of the first frame 100 forms a second mating surface 114 that matches the first mating surface 214.

[0026] In use, the user aligns the insertion part 110 of the first frame 100 with the slot 211 of the second frame 200 and gently pushes it in. During insertion, the guide slope 213 first guides the insertion part 110 to center. As insertion deepens, the positioning protrusion 112 contacts the inner wall of the slot 211, pressing the elastic arm 111 into the clearance hole 113 to produce elastic deformation. When the insertion part 110 reaches the specified depth, that is, when the first mating surface 214 and the second mating surface 114 are about to fit together, the positioning protrusion 112 moves exactly to the positioning hole 212, the elastic arm 111 instantly resets, pushing the positioning protrusion 112 into the positioning hole 212, and at the same time the two mating surfaces fit tightly together. At this time, there will be a clear "click" feeling or sound, indicating that the assembly is in place. At this time, the first frame 100 and the second frame 200 are firmly connected together.

[0027] During disassembly, the user simply holds the first frame 100 and the second frame 200 by hand and applies opposing pulling forces. This force will cause the elastic arm 111 to deform again, and the positioning protrusion 112 will slide out of the positioning hole 212, making it easy to separate the two parts.

[0028] Its support relies on the insertion part and the connecting part, while its positioning relies on the positioning protrusions and positioning holes on the elastic arm. Therefore, it has higher reliability and will not deform even after long-term use.

[0029] The ends of the two temples 300 are connected by a connecting strap 400 made of elastic silicone. Each end of the connecting strap 400 has a socket, into which the end of the temple 300 is inserted and secured with an interference fit. When the glasses are removed, the first frame (with one temple) and the second frame (with the other temple) remain connected by this elastic connecting strap 400, forming a loop. When not worn, they can be hung directly around the neck. To prevent loss, the insertion and connecting parts can also be used to secure them when hanging around the neck.

[0030] Its disassembly method is simple and the connection is reliable. Separation force can be applied at the connection point with one hand, making the operation more convenient and quick, which is in line with the usage habits of the elderly.

[0031] The embodiments should not be regarded as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A detachable neckband reading glasses, comprising a first frame (100), a second frame (200), and two temples (300) hinged to the first frame (100) or the second frame (200), characterized in that: The first frame (100) has an insertion part (110) at one end; The second frame (200) has a connecting part (210) at one end, and the connecting part has a slot (211) for detachably connecting with the insertion part (110); The insertion part (110) is provided with an elastic arm (111) on any side. The elastic arm (111) is arranged along the insertion direction, and its free end is provided with an outward positioning protrusion (112). The inner wall of the slot (211) is provided with a positioning hole (212). When the insertion part (110) is inserted into the slot (211), the elastic arm (111) is deformed by pressure and resets and snaps in when the positioning protrusion (112) reaches the positioning hole (212); By applying a separation force to the first frame (100) and / or the second frame (200), the elastic arm (111) is deformed and the positioning protrusion (112) is disengaged from the positioning hole (212).

2. The easily detachable neckband reading glasses according to claim 1, characterized in that: The insertion part (110) is provided with a clearance hole (113), one end of the elastic arm (111) is integrally connected to the inner wall of one side of the clearance hole (113), and its main body is suspended above the clearance hole (113).

3. The easily detachable neckband reading glasses according to claim 1, characterized in that: The end face of the connecting part (210) forms a first mating surface (214), and the insertion part (110) or the first frame (100) is provided with a second mating surface (114). When the insertion part (110) and the slot (211) are fully engaged, the first mating surface (214) and the second mating surface (114) are in contact.

4. The easily detachable neckband reading glasses according to claim 1, characterized in that: The opening edge of the slot (211) is provided with a guide bevel or a guide fillet.

5. The easily detachable neckband reading glasses according to claim 1, characterized in that: The cross-section of the positioning protrusion (112) is circular or elliptical; and / or, the positioning protrusion (112) is provided with guide slopes on the front and rear sides in the insertion direction.

6. The easily detachable neckband reading glasses according to claim 1, characterized in that: The ends of the two temples (300) are connected by a connecting strap (400) to form a closed ring.

7. A detachable neckband reading glasses as described in claim 6, characterized in that: The connecting strip (400) is made of an elastic material.

8. A detachable neckband reading glasses as described in claim 6, characterized in that: The end of the connecting band (400) is provided with a sleeve hole, and the end of the temple (300) is inserted into the sleeve hole and is interference-fitted with the sleeve hole.

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