Clamping return structure and glasses

Abstract

The utility model discloses a clamping return structure and glasses, and relates to the technical field of glasses, the clamping return structure comprises a cross beam, glasses legs and a connecting assembly, the connecting assembly comprises a connecting piece and an elastic piece, and one side, facing the glasses legs, of the cross beam is provided with a first abutting surface; one side, facing the cross beam, of each glasses leg is provided with a second abutting surface; the glasses legs abut against the cross beam in a sliding manner; the connecting assembly comprises a connecting piece and an elastic piece, the connecting piece is rotationally connected to the cross beam, and the glasses legs are slidably connected to the connecting piece; two ends of the elastic piece are respectively arranged at one ends of the glasses legs and the connecting piece far away from the cross beam; wherein the clamping return structure has a natural state and an open state; when the clamping return structure is in a natural state, the first abutting face and the second abutting face are arranged in an attached mode. When the clamping return structure is in an open state, a gap is formed between the first abutting surface and the second abutting surface.

Description

Technical Field

[0001] This utility model relates to the field of eyeglasses technology, and in particular to a clamping and repositioning structure and eyeglasses. Background Technology

[0002] With technological advancements, the types and functions of eyeglasses have become increasingly diverse, including smart products (such as AR / VR glasses) and ordinary glasses for everyday wear. The clamping force of the temples directly impacts the user's experience. Most eyeglass temple designs use screws to fix the left and right temples to the bridge of the glasses. In this structure, the position of the temples cannot be changed. If the user's face size is large, the temples cannot be adjusted to adapt to that size.

[0003] Some eyeglasses on the market use hinges to connect the temples to the bridge, allowing the temples to open and swing, thus controlling the degree of opening and closing according to the user's facial contours. However, after prolonged wear, the temples may shift slightly, resulting in insufficient clamping force on the user's face, causing the glasses to slip off. Utility Model Content

[0004] The main purpose of this invention is to propose a clamping and repositioning structure to reduce the chance of glasses slipping off the user's face.

[0005] To achieve the above objectives, the clamping and repositioning structure proposed in this utility model includes:

[0006] The crossbeam has a first abutting surface on the side facing the temple;

[0007] The temple has a second abutting surface on the side facing the crossbeam; the temple slides against the crossbeam; and

[0008] A connecting assembly includes a connector and an elastic element. The connector is rotatably connected to the crossbeam, and the temple is slidably connected to the connector. The two ends of the elastic element are respectively located at the ends of the temple and the connector away from the crossbeam.

[0009] The clamping and repositioning structure has a natural state and an open state; when the clamping and repositioning structure is in the natural state, the first abutting surface and the second abutting surface are fitted together; when the clamping and repositioning structure is in the open state, a gap is formed between the first abutting surface and the second abutting surface. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0011] Figure 1 A schematic diagram of an embodiment of the clamping and repositioning structure provided by this utility model;

[0012] Figure 2 An exploded view of the clamping and repositioning structure;

[0013] Figure 3 This is a schematic diagram of the connecting parts in the clamping and returning structure;

[0014] Figure 4 This is a schematic diagram of the crossbeam in the clamping and repositioning structure;

[0015] Figure 5 A schematic diagram of another embodiment of the clamping and returning structure;

[0016] Figure 6 for Figure 5 Sectional view along AA;

[0017] Figure 7 for Figure 6 A magnified view of a section at point B in the middle;

[0018] Figure 8 A cross-sectional view of yet another embodiment of the clamping and repositioning structure;

[0019] Figure 9 for Figure 8 A magnified view of a section at point C.

[0020] Explanation of icon numbers:

[0021] 1000 Clamping return structure 2a Second contact surface 1 beam 21 protrusion 1a First contact surface 2a Second receiving tank 11 Bend section 31 connector 11a First receiving tank 311 Rotating section 11b groove 312 Sliding segment 11b1 Second sliding surface 313 Limiting segment 11c First sliding surface 31a Sliding ring groove 11c1 Opening 32 elastic element 12 extension 33 Active parts 2 temples

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] To solve the above problems, this utility model proposes a clamping and return structure 1000. Figures 1 to 9 This is a schematic diagram of an embodiment of the clamping and return structure 1000 provided by this utility model.

[0027] Please refer to 1. Figure 2 , Figure 4 , Figure 6 , Figure 7 , Figure 8 as well as Figure 9 In the technical solution of this utility model, the clamping and repositioning structure 1000 includes a crossbeam 1, a temple 2, and a connecting assembly. The connecting assembly includes a connector 31 and an elastic member 32. The side of the crossbeam 1 facing the temple 2 has a first abutting surface 1a; the side of the temple 2 facing the crossbeam 1 has a second abutting surface 2a; the temple 2 and the crossbeam 1 slide against each other; the connecting assembly includes a connector 31 and an elastic member 32. The connector 31 is rotatably connected to the crossbeam 1, and the temple 2 is slidably connected to the connector 31; the two ends of the elastic member 32 are respectively located at the ends of the temple 2 and the connector 31 away from the crossbeam 1; wherein, the clamping and repositioning structure 1000 has a natural state and an open state; when the clamping and repositioning structure 1000 is in the natural state, the first abutting surface 1a and the second abutting surface 2a are fitted together; when the clamping and repositioning structure 1000 is in the open state, a gap is formed between the first abutting surface 1a and the second abutting surface 2a.

[0028] In this design, the first contact surface 1a of the crossbeam 1 and the second contact surface 2a of the temple 2 are in contact with each other in their natural state, providing stable support. The rotatable connection of the connector 31 refers to the rotatable connection with the crossbeam 1 achieved through a rotating shaft. A connector 31 with a shaft hole can be used to cooperate with the rotating shaft on the crossbeam 1, allowing the temple 2 to rotate around the crossbeam 1. The two ends of the elastic element 32 are fixed, meaning that one end of the elastic element 32 is fixed inside the temple 2, and the other end is fixed to the end of the connector 31. When the temple 2 is unfolded, the elastic element 32 is compressed and stores energy.

[0029] Before wearing the glasses, the user opens the temple 2 to allow the clamping return structure 1000 to be in its natural state, where the first contact surface 1a and the second contact surface 2a are fully in contact. When wearing the glasses on a face with a larger profile, the user rotates the temple 2 to open the clamping return structure 1000, causing the temple 2 to rotate relative to the beam 1. After rotation, a gap is created between the first contact surface 1a and the second contact surface 2a, thus increasing the distance between the beam 1 and the temple 2. Simultaneously, due to the relative rotation of the connecting piece 31 relative to the beam 1... When beam 1 rotates, the radial distance between connector 31 and crossbeam 1 remains unchanged. Therefore, temple 2 slides on connector 31, thereby compressing elastic element 32 and causing elastic element 32 to be compressed and store energy. When worn, the force applied by the user to temple 2 disappears, and the compressed elastic element 32 has a reversible elastic force, which acts on temple 2 to continuously apply pressure to temple 2, so that temple 2 continuously applies clamping force to the user's face, thereby ensuring that temple 2 is always in close contact with the user's face. This reduces the chance of glasses slipping off the user's face after wearing.

[0030] It should be noted that, Figure 6 and Figure 7 This is a schematic diagram of the clamping and repositioning structure 1000 in its natural state. Figure 8 and Figure 9 This is a schematic diagram of the clamping and return structure 1000 in the open state.

[0031] Please see Figure 2 , Figure 6 , Figure 7 , Figure 8 as well as Figure 9 In one embodiment of the present invention, the connecting component further includes a movable member 33, which is disposed on the temple 2 and slidably sleeved on the connecting member 31; the movable member 33 is elastically connected to the connecting member 31 through an elastic member 32.

[0032] The movable part 33 refers to the sliding component that is fixedly connected to the temple 2. Specifically, it can be implemented using a metal sleeve with an axial through hole, where the inner wall of the through hole forms a clearance fit with the outer diameter of the connecting part 31. The sliding sleeve refers to the axially movable mechanical fit between the movable part 33 and the connecting part 31, which can be implemented using a clearance fit structure between a cylindrical rod and a sleeve.

[0033] When the temple 2 is extended by an external force, the movable part 33 slides axially along the connecting part 31 and compresses the elastic part 32. At this time, the rebound force accumulated in the elastic part 32 acts directly on the temple 2 through the sleeve structure. After the external force is removed, the elastic part 32 releases its deformation energy, driving the movable part 33 to slide in the opposite direction, causing the temple 2 to automatically return to its original position. The sliding sleeve structure provides precise guidance for the movable part 33, preventing the temple 2 from radially offset during movement, thereby maintaining the automatic return performance of the temple 2 during long-term use.

[0034] Further, please refer to Figure 2 , Figure 3 as well as Figure 6 In one embodiment of the present invention, the connecting member 31 includes a rotating section 311, a sliding section 312, and a limiting section 313 connected in sequence; the rotating section 311 is rotatably connected to the crossbeam 1, the movable member 33 is slidably sleeved on the sliding section 312, and is elastically connected to the limiting section 313 through the elastic member 32; the rotating section 311, the sliding section 312, and the limiting section 313 enclose to form a sliding annular groove 31a for limiting the movable member 33.

[0035] The rotating section 311 refers to the part of the connector 31 that forms a rotating pair with the crossbeam 1. Specifically, it can be implemented by a cylindrical shaft fitting into the shaft hole of the crossbeam 1, providing the temple 2 with the freedom to rotate around its axis. The sliding section 312 refers to the part of the connector 31 that forms a sliding pair with the movable part 33. Specifically, it can be implemented by a rod-shaped structure with a consistent outer diameter, constraining the movable part 33 to slide axially. The limiting section 313 refers to the part of the connector 31 that directly connects to the elastic member 32. Specifically, it can be implemented by an annular boss structure, limiting the sliding stroke of the movable part 33 and providing the point of application of the elastic restoring force. The sliding annular groove 31a refers to the annular space formed by the rotating section 311, the sliding section 312, and the limiting section 313. Specifically, it can be implemented by a stepped structure formed by three sections with different diameters.

[0036] The diameter difference between the rotating section 311 and the limiting section 313 forms an annular groove 11b. The sleeve portion of the movable part 33 is embedded in the groove 11b, and its movement distance on the connecting member 31 is limited, thereby preventing the movable part 33 from disengaging from the sliding connection with the connecting member 31. At the same time, the movable part 33 is sleeved on the sliding section 312, which can effectively constrain the offset of the movable part 33 during the sliding process, so that the restoring force generated by the elastic member 32 is always transmitted to the temple 2 along the axial direction of the connecting member 31, ensuring that the clamping force of the temple 2 remains stable when it is opened and closed.

[0037] Please see Figure 2 , Figure 4 as well as Figure 6In one embodiment of the present invention, the crossbeam 1 includes a bent section 11 and an extension section 12 connected together, and the connector 31 is rotatably connected to the bent section 11; a groove 11b is formed at the end of the first abutting surface 1a away from the extension section 12, and a protrusion 21 is provided at the end of the second abutting surface 2a away from the extension section; when the clamping return structure 1000 is in a natural state, the protrusion 21 is engaged in the groove 11b so that the first abutting surface 1a and the second abutting surface 2a are fitted together.

[0038] The bending section 11 refers to the part of the crossbeam 1 with a bending angle, which can be made by stamping metal sheet and serves as a pivot point for the connector 31. The extension section 12 refers to the straight extension connected to the bending section 11, which can be integrally formed by injection molding and serves to fix the crossbeam 1 to the frame. The groove 11b refers to the recessed structure at the end of the first abutment surface 1a, which can be formed by machining or molding and serves to form a geometric constraint with the protrusion 21 in its natural state. The protrusion 21 refers to the protruding structure at the end of the second abutment surface 2a, which can be made by covering a metal core with rubber material.

[0039] The connection between the bent section 11 and the extension section 12 forms a stable support structure, causing the rotation axis of the connector 31 to form a preset angle with the sliding direction of the temple 2. When the clamping return structure 1000 is in its natural state, the rebound force of the elastic element 32 drives the temple 2 to move towards the crossbeam 1, forcing the protrusion 21 to embed into the groove 11b. The sidewall of the groove 11b and the surface of the protrusion 21 form a surface contact, limiting the lateral displacement of the temple 2 through the complementary fit of their geometric shapes. In the open state, the external force overcomes the resistance of the elastic element 32, causing the protrusion 21 to disengage from the groove 11b. When the temple 2 rotates around the connector 31, the protrusion 21 slides along the curved surface of the bent section 11, at which time a gap is formed between the first abutment surface 1a and the second abutment surface 2a. After the external force is removed, the elastic element 32 pushes the temple 2 back to its original position, and the protrusion 21 re-engages in the groove 11b along the sliding trajectory, restoring the complete fit of the two abutment surfaces. The interlocking structure of the groove 11b and the protrusion 21 creates a geometric constraint, which can ensure that the two contact surfaces maintain a zero-gap fit when no external force is applied, effectively improving the stability of the clamping force; at the same time, it can provide clear positioning feedback during the opening and closing of the temple 2, avoiding the decrease in positioning accuracy caused by long-term use, so that the temple 2 can still accurately restore the initial fit position after repeated opening and closing.

[0040] Please see Figure 6 , Figure 7 , Figure 8 as well as Figure 9In one embodiment of this utility model, the side wall of the bent section 11 facing the extension section 12 has a first sliding surface 11c, and the groove wall of the groove 11b, which is opposite to the first sliding surface 11c and the bent section 11, has a second sliding surface 11b1; the first sliding surface 11c, the first abutting surface 1a, and the second sliding surface 11b1 are arranged sequentially and continuously; when the protrusion 21 slides against the first sliding surface 11c, the end of the temple 2 away from the extension section 12 moves closer to the end of the extension section 12 away from the bent section 11; when the protrusion 21 slides against the first abutting surface 1a or the second sliding surface 11b1, the second abutting surface 2a moves closer to the first abutting surface 1a.

[0041] Wherein, the first sliding surface 11c refers to the inclined or arc-shaped surface in the side wall of the bent section 11 facing the extension section 12; the second sliding surface 11b1 refers to the inclined or arc-shaped surface in the groove wall of the groove 11b that forms a space corresponding to the first sliding surface 11c.

[0042] When the protrusion 21 moves along the first sliding surface 11c, it indicates that the user is opening the temple 2 to move away from the frame before wearing the glasses, or that the user is preparing to put the glasses away after wearing them and is closing the temple 2 to move closer to the frame. The end of the temple 2 away from the extension section 12 is guided by the tilt angle of the sliding surface and displaces towards the end of the extension section 12. At this time, the elastic element 32 is compressed and stores elastic potential energy. If the user does not apply force to the temple 2 during this stage, the temple 2 will be pushed closer to the frame by the decrease in the elastic force of the elastic element 32, so as to complete the closing of the temple 2. When the protrusion 21 enters the area of ​​the first abutment surface 1a or the second sliding surface 11b1, that is, when the temple 2 is in the process of opening but not yet fully open, the temple 2 will compress the elastic element 32, causing the elastic element 32 to store elastic potential energy. After the user stops applying force to the temple 2, under the action of the elastic force of the elastic element 32, the clamping return structure 1000 will automatically return to its natural state, that is, the first abutment surface 1a and the second abutment surface 2a will be in contact. The continuous curved path formed by the first sliding surface 11c and the second sliding surface 11b1 ensures that the protrusion 21 is always in a controlled state during the sliding process, enabling the temple 2 to automatically return to its original position. This solves the problem that the temple 2 cannot automatically return to its folded or unfolded state when not worn, ensuring that the temple 2 remains closed and fitted in its natural state and maintains a predetermined unfolding angle in its open state.

[0043] Please see Figure 4 and Figure 6In one embodiment of this utility model, a first receiving groove 11a is provided on the first abutting surface 1a for accommodating a portion of the structure of the connector 31. The first receiving groove 11a refers to a groove 11b structure formed on the first abutting surface 1a, which can be processed by milling or in-mold forming process. Its depth and width can be adjusted according to the size of the connector 31, and is used to embed a portion of the rotating section 311 and sliding section 312 of the connector 31 in its natural state.

[0044] When the clamping and returning structure 1000 is in the open state, the connector 31 rotates in the first receiving groove 11a. The groove wall of the first receiving groove 11a can limit the rotation range of the connector 31, so as to prevent the connector 31 from rotating too much and causing the temple 2 to open excessively and fail to return to its original position.

[0045] Please see Figure 4 and Figure 6 In one embodiment of the present invention, an opening 11c1 is provided on the first sliding surface 11c for the connector 31 to pass through.

[0046] The opening 11c1 refers to the channel that passes through the first sliding surface 11c. It can be processed by drilling or wire cutting. Its function is to provide a movement channel for the connector 31 and avoid mechanical interference between the connector 31 and the crossbeam 1. The size of the opening 11c1 is slightly larger than the cross-sectional size of the rotating section 311 of the connector 31.

[0047] When the user opens the temple 2 away from the frame before wearing the glasses, or when the user closes the temple 2 to bring it closer to the frame after wearing the glasses, the temple 2 can pass through the opening 11c1, thereby preventing the connector 31 from being blocked by the groove wall of the first receiving groove 11a and thus limiting the rotation range of the temple 2.

[0048] Please see Figure 6 In one embodiment of the present invention, a second receiving groove 2a communicating with the first receiving groove 11a is provided on the second abutting surface 2a. The first receiving groove 11a and the second receiving groove 2a are used to receive the connecting component.

[0049] The second receiving groove 2a refers to the groove 11b structure opened on the second abutting surface 2a. Specifically, it can be realized by adopting a groove shape that is symmetrical to the first receiving groove 11a, so as to form a continuous space together with the first receiving groove 11a.

[0050] When the temple 2 slides relative to the crossbeam 1, the connector 31 and the elastic element 32 in the connecting assembly are confined within the continuous space formed by the first receiving groove 11a and the second receiving groove 2a. The expansion and contraction deformation of the elastic element 32 occurs inside the groove, preventing the assembly from shifting due to external friction or collision. By completely housing the connecting assembly within the grooves of the crossbeam 1 and the temple 2, the direct effect of the external environment on the assembly can be eliminated, making the clamping force transmission more stable when the temple 2 slides, while reducing the risk of external damage to the internal components of the clamping return structure 1000.

[0051] It should be noted that the elastic element 32 can be a spring, elastic silicone, or other elastic materials. In one embodiment of this utility model, the elastic element 32 is a spring.

[0052] A spring is a component that stores and releases mechanical energy through elastic deformation. Specifically, it can be a helical compression spring or a tension spring, providing a stable restoring force through its linear elastic characteristics. In the clamping and returning structure 1000, the two ends of the spring are fixed to the temple 2 and the connecting piece 31, respectively. When the temple 2 deviates from its natural state under external force, the spring stores elastic potential energy through compression. After the external force is removed, the elastic potential energy is released, driving the temple 2 to return to its original position. The fatigue resistance of the spring reduces elastic decay after long-term use, thereby maintaining the clamping force between the temple 2 and the beam 1.

[0053] The stable rebound force of the spring ensures that the temple 2 remains in close contact with the user's face after multiple openings and closings, preventing the glasses from slipping off. This solves the problem of insufficient clamping force caused by the elastic decay of the elastic element 32 after long-term use of the temple 2.

[0054] This utility model also proposes a pair of eyeglasses, which includes a frame, lenses, and a clamping and returning structure 1000. The specific structure of the clamping and returning structure 1000 is as described in the above embodiments. Since this pair of eyeglasses adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The lenses are detachably connected to the frame, and the frame is detachably connected to the end of the crossbeam 1 away from the connector 31.

[0055] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A clamping return structure, characterized by, include: beam; The temple has a first abutting surface on the side of the crossbeam facing the temple, and a second abutting surface on the side of the temple facing the crossbeam; the temple slides against the crossbeam. as well as A connecting assembly includes a connector and an elastic element. The connector is rotatably connected to the crossbeam, and the temple is slidably connected to the connector. The two ends of the elastic element are respectively located at the ends of the temple and the connector away from the crossbeam. The clamping and repositioning structure has a natural state and an open state; when the clamping and repositioning structure is in the natural state, the first abutting surface and the second abutting surface are fitted together; when the clamping and repositioning structure is in the open state, a gap is formed between the first abutting surface and the second abutting surface.

2. The clamp return structure of claim 1, wherein The connecting assembly further includes a movable member, which is disposed on the temple and slidably sleeved on the connecting member; the movable member is elastically connected to the connecting member through the elastic member.

3. The clamp and return structure of claim 2, wherein, The connector includes a rotating section, a sliding section, and a limiting section connected in sequence. The rotating section is rotatably connected to the crossbeam, the movable part is slidably sleeved on the sliding section, and is elastically connected to the limiting section through the elastic element; the rotating section, the sliding section, and the limiting section together form a sliding annular groove for limiting the movable part.

4. The clamp and return structure of claim 1, wherein The crossbeam includes a bent section and an extension section connected together, and the connector is rotatably connected to the bent section; A groove is formed at one end of the first abutting surface away from the extension, and a protrusion is provided at one end of the second abutting surface away from the extension; When the clamping and repositioning structure is in its natural state, the protrusion engages with the groove so that the first abutting surface and the second abutting surface fit together.

5. The clamp and return structure of claim 4, wherein, The side wall of the bent section facing the extension section has a first sliding surface, and the groove wall in the groove, which is opposite to the first sliding surface and disposed on the bent section, has a second sliding surface; the first sliding surface, the first abutting surface, and the second sliding surface are arranged sequentially and continuously. When the protrusion slides against the first sliding surface, the end of the temple away from the extension section moves toward the end of the extension section away from the bending section; when the protrusion slides against the first abutment surface or the second sliding surface, the second abutment surface moves toward the first abutment surface.

6. The clamp and return structure of claim 5, wherein The first abutting surface has a first receiving groove for accommodating a portion of the structure of the connector.

7. The clamp and return structure of claim 6, wherein An opening is provided on the first sliding surface for the connector to pass through.

8. The clamp and return structure of claim 7, wherein, The second abutting surface is provided with a second receiving groove that communicates with the first receiving groove. The first receiving groove and the second receiving groove are used to receive the connecting component.

9. The clamp return structure according to any one of claims 1 to 8, wherein The elastic element is a spring.

10. Eyeglasses, characterized in that, The eyeglasses include a frame, lenses, and a clamping and repositioning structure as described in any one of claims 1 to 9, wherein the lenses are detachably connected to the frame, and the frame is detachably connected to the end of the crossbeam away from the connector.

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