Removable eyeglass temples
By using a "key and lock" shaped connection mechanism, the problem of inconvenient disassembly and assembly of traditional eyeglass temples is solved, achieving quick disassembly and assembly, structural stability, aesthetic appearance, and wearing safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU KANGCHENG EYEWEAR CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional eyeglasses have inconvenient temple assembly and disassembly procedures, and they neglect issues of wearing safety and a simple, aesthetically pleasing appearance.
The connection mechanism adopts a "key and lock" form, including a locking shaft, a plug sleeve, and a compression spring. Through the design of axial grooves and spiral locking grooves, the temple body and the hinge joint can be detachably connected, ensuring a simple and reliable structure, a neat and beautiful appearance, and wearing safety.
It enables quick assembly and disassembly of the temples, improving structural stability and safety, while maintaining a simple and aesthetically pleasing appearance and reducing safety hazards during wear.
Smart Images
Figure CN224303963U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to eyeglass accessories, specifically eyeglass temples. Background Technology
[0002] Traditional eyeglass temples are inconvenient to assemble and disassemble. However, with the increasing need for personalization, maintenance, and functional changes, the ability to quickly replace eyeglass temples is gaining more and more attention. In light of market demand, we aim to propose an eyeglass temple design that is simple and convenient to assemble and disassemble. Considering the various usage scenarios for eyeglasses, it is necessary to ensure that the structure at the temple connection is stable and reliable, and that the appearance is as simple and aesthetically pleasing as possible.
[0003] On the other hand, people often overlook the safety of this position, so given the usage scenarios of glasses, we also hope that detachable temples are safe to wear. Summary of the Invention
[0004] The purpose of this invention is to overcome the defects of the existing technology and provide a detachable eyeglass temple that is easy to assemble and disassemble, with the advantages of simple and reliable structure and safe and reliable wearing.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A detachable temple for eyeglasses includes a temple body, a hinge joint at one end of the temple body, and a connecting mechanism that can be locked and unlocked. The hinge joint and the temple body are detachably connected via the connecting mechanism. The connecting mechanism includes a locking shaft, a plug sleeve, and a compression spring.
[0007] The insert sleeve is formed on one end of the temple body. The inner hole of the insert sleeve is a blind hole with one end open and the other end closed. From the outside to the inside, the inner hole of the insert sleeve includes a shaft insertion hole body adapted and positioned to the locking shaft and an end hole body for accommodating the compression spring. The inner wall of the shaft insertion hole body has an axial groove along the axial direction. The axial groove is a groove with a bottom in the depth direction. The outer axial end of the axial groove is an inlet and outlet corresponding to the opening end of the inner hole. The insert sleeve has a locking groove. The locking groove is a hole-shaped hole that penetrates the wall of the shaft insertion hole body. The locking groove corresponds to the inner axial end of the axial groove. The locking groove extends circumferentially along the shaft insertion hole body. One end of the locking groove is a screw inlet connected to the axial groove. The other end of the locking groove is an axial locking end with a locking recess. The locking recess extends along the axial direction of the insert sleeve and toward the opening end of the inner hole.
[0008] The locking shaft is formed on the hinge joint. A single locking tooth protrudes radially from the head of the locking shaft. The locking shaft is inserted into the shaft insertion hole along the open end of the shaft insertion hole. The locking tooth corresponds to and engages with the axial groove. The locking tooth slides down to the corresponding position of the swivel locking groove under the guidance of the axial groove. When the locking tooth corresponds to the swivel locking groove, the locking shaft can rotate relative to the insertion sleeve. The locking shaft has an unlocking position where the locking tooth is located in the axial groove and a locking position where the locking tooth is located at the axial locking end along the rotation direction. After the locking shaft rotates to the locking position, the locking tooth can fall into the locking recess, forming a locking connection between the temple body and the hinge joint. The end of the locking tooth does not protrude out of the outer opening of the swivel locking groove.
[0009] The compression spring is inserted into the end hole, with one end abutting against the bottom of the end hole and the other end extending to the shaft insertion hole. The compression spring can abut against the locking shaft when the locking shaft slides into the shaft insertion hole to the position of the locking tooth corresponding to the locking groove, thereby applying an axial thrust to the locking shaft through the compression spring. This axial thrust drives the locking tooth to fall into and remain in the locking recess.
[0010] Preferably, the rotation angle of the locking shaft from the unlocked position to the locked position is 90°, the temple body includes a plastic component body integrally injection molded with the plug sleeve, the outer contour of the sleeve portion forming the shaft plug hole on the plug sleeve is rectangular, the lock groove forms a through opening only on one side of the rectangular contour of the plug sleeve, and the hinge portion with the locking shaft is a metal component.
[0011] Preferably, the through opening of the locking groove corresponds to the surface of the temple body facing the human face when it is locked in connection with the hinge joint.
[0012] Preferably, the opening end of the plug sleeve is provided with a stepped flare, and the hinge part has a shoulder part at the root of the locking shaft that is adapted to the flare, and the shoulder part is positioned and inserted into the flare.
[0013] Preferably, the locking recess is a shallow recess with a depth less than the outer diameter of the locking tooth.
[0014] The detachable temples of this invention have the following technical advantages: The connecting mechanism adopts a "key and lock" shaped structure. Specifically, the hinge joint has a locking shaft with a single locking tooth, resembling a "key," while the temple body has a plug-in sleeve, resembling a "lock with a keyhole." The single locking tooth corresponds to the axial groove design, which simplifies the alignment of the hinge joint and temple body during assembly. The axial groove is a bottomed recess, meaning it is a hidden design placed within the inner hole of the plug-in sleeve, ensuring the outer surface of the temple body is intact. The locking groove is a through hole, which, while maintaining a neat and aesthetically pleasing overall appearance, simplifies the overall processing and molding of the temple body, and enhances its overall structural strength. The temple body is made of plastic injection molded components. Furthermore, because the axial groove is a bottomed recess, the locking teeth are guided by the axial groove, making it easier to control the wall thickness of the insert sleeve (under the control of the insert sleeve's wall thickness, if the locking teeth protrude too much, they cannot pass through the axial groove). This ensures that the end of the locking teeth is lower than the outer opening of the locking groove, guaranteeing the safety of the temples (locking teeth protruding from the outer surface of the temple body can easily scratch the user). Moreover, the axial groove is a hidden design, with an open opening only formed on the circumferential sidewall of the temple body during the molding of the locking groove. This helps ensure the safety of the temples and reduces safety hazards, such as hair getting stuck in the open opening when wearing the glasses, which can easily pull on the wearer's scalp during use. The design of the temples has been optimized to improve aesthetics, structural reliability, and safety during use. For example, the locking groove has a through-hole on only one side of the rectangular outline of the insert sleeve, thus minimizing the open opening on the temple body while ensuring ease of processing and forming, achieving a cleaner, more aesthetically pleasing, and safer result. The hinge joint with a locking shaft can be made of metal to ensure overall structural strength, and the aforementioned structural design for enhanced safety during use also makes it possible to use metal components for the hinge joint. Furthermore, the open opening (through-hole) on the temple body is located on the side facing the face, making it more concealed and aesthetically pleasing, and less likely to be touched by the hand when removing the glasses.
[0015] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description
[0016] Figure 1 This is a diagram showing the detachable temples of the present invention installed on the frame.
[0017] Figure 2 This is an exploded view of the detachable temple of the present invention.
[0018] Figure 3 This is a diagram showing the locking connection state of the detachable temples of this utility model;
[0019] Figure 4 This is a diagram showing the disassembled state of the detachable temples of this utility model;
[0020] Figure 5 This diagram shows the intermediate state of the detachable temple of the present invention when the locking teeth reach the axial groove and correspond to the position of the swivel locking groove.
[0021] Figure 6 For detachable temples of glasses Figure 5 A cross-sectional view in the current state;
[0022] Figure 7 For detachable temples of glasses Figure 3 A cross-sectional view in the current state. Detailed Implementation
[0023] See appendix Figures 1-7 This utility model discloses a detachable eyeglass temple, including a temple body 1, a hinge joint 2 located at one end of the temple body 1, and a connecting mechanism that can be locked and unlocked. The hinge joint 2 is used to hinge the temple to the eyeglass frame 9. The hinge joint 2 and the temple body 1 are detachably connected via the connecting mechanism. The connecting mechanism adopts a "key and lock" shaped cooperation structure, achieving a simple and reliable structure, easy and convenient operation, neat and beautiful appearance, and safe use. Specifically, the connecting mechanism includes a locking shaft 21 formed on the hinge joint 2, a plug sleeve 11 formed on the temple body 1, and a compression spring 3. As a preferred embodiment of this utility model, the hinge joint 2 with the locking shaft 21 is designed as a metal component, and the main part of the temple body 1 is a plastic injection molded component, that is, the temple body 1 includes a plastic component body integrally injection molded with the plug sleeve 11; the hinge joint 2 is a small volume component, and the diameter of the locking shaft 21 is usually small, so it is made of metal to ensure the structural strength of the hinge joint. The insertion sleeve 11 formed on the temple body 1 is advantageous for plastic injection molding. At the same time, the use of plastic for temple molding has certain advantages, such as cost and weight. However, the insertion sleeve 11 on the plastic injection molded temple body 1 is hollow. In particular, the insertion sleeve 11 will form a groove-shaped structure design that weakens the wall thickness of the insertion sleeve. Therefore, how to ensure the structural strength of the insertion sleeve is also a technical challenge that will be discussed and solved here.
[0024] The inner hole of the plug sleeve 11 is a blind hole with one end open and the other end closed. The inner hole of the plug sleeve 11, axially from the outside to the inside, includes a shaft plug-in hole body 111 adapted and positioned to fit the locking shaft 21, and an end hole body 112 accommodating the compression spring 3. The fit between the locking shaft 21 and the shaft plug-in hole body 111 is ensured by controlling the dimensions to allow the locking shaft 21 to slide and rotate axially within the shaft plug-in hole body 111, while minimizing the gap between the locking shaft 21 and the hole wall of the shaft plug-in hole body 111 to prevent the locking shaft 21 from wobbling within the shaft plug-in hole body 111. The inner wall of the shaft plug-in hole body 111 has an axial groove 113 along its axial direction. The axial groove 113 is a groove with a bottom 1131 in the depth direction, so that the axial groove 113 will not form an opening on the circumferential outer surface of the plug sleeve 11. The axial groove 113 is hidden in the inner hole of the insertion sleeve 11. The outer axial end of the axial groove 113 is the inlet / outlet 1132 corresponding to the opening end of the inner hole, and the inner axial end of the axial groove 113 is the stop end 1133. The insertion sleeve 11 is provided with a locking groove 114, which corresponds to the inner axial end of the axial groove 113. The locking groove 114 extends circumferentially along the shaft insertion hole body 111. Therefore, in order to facilitate the machining of the locking groove on the temple body, the locking groove 114 is a hole that penetrates the wall of the shaft insertion hole body 111. One end of the locking groove 114 is the screw inlet 1141 connected to the inner axial end of the axial groove 113, and the other end of the locking groove 114 is the axial locking end 1142. The axial locking end 1142 has a locking recess 1143, which extends axially along the insertion sleeve 11 and toward the opening end of the inner hole. Therefore, the plug-in sleeve is similar in form to a "lock with a keyhole," with the axial groove and the turn-locking groove serving as structures to provide locking and unlocking operations, combining the advantages of easy processing, structural reliability, and security. Furthermore, the rotation angle α of the locking shaft from the unlocked position to the locked position is 90°, the outer contour of the sleeve portion forming the shaft plug-in hole 111 on the plug-in sleeve 11 is rectangular, and the turn-locking groove 113 forms a through-hole only on one surface of the rectangular contour of the plug-in sleeve 11, i.e. Figures 2-4 and Figure 6 , Figure 7 As shown, a locking groove 114 is formed by penetrating the axial groove 113 in the transverse direction on the insertion sleeve 11. This design, while ensuring convenient processing, further achieves a smaller opening (formed by processing the locking groove). The opening is only on one surface of the rectangular outline of the insertion sleeve 11, which not only ensures the structural strength of the temple body and makes the overall appearance neat and beautiful, but also reduces the probability of dangerous accidents (such as hair getting caught), improving wearing safety. Preferably, the through opening of the locking groove 114 corresponds to the side of the temple body 1 facing the human face (i.e., the so-called inner side) when it is locked with the hinge part 2.
[0025] The locking shaft 21 has a single locking tooth 211 protruding radially from its head. The locking tooth 211 is a cylindrical pin. The concave surface of the locking recess 1143 is an arc shape that matches the shape of the locking tooth 211, which can form an insertion hole on the locking shaft 21. The cylindrical pin is inserted into the insertion hole. The locking shaft 21 is inserted into the shaft insertion hole 111 along the open end of the shaft insertion hole body 111. The locking tooth 211 corresponds to and engages with the axial groove 113. The locking tooth 211 slides down the axial groove 113 to the corresponding position of the locking groove 114 (e.g., ...). Figure 5 and Figure 6 As shown), the locking shaft 21 can rotate relative to the insertion sleeve 11 when the locking teeth 211 correspond to the locking groove 114. The locking shaft 21 has an unlocking position along the rotation direction where the locking teeth 211 are located in the axial groove 113 (as shown). Figure 5 and Figure 6 As shown) and the locking tooth 211 is located in the locking position of the axial locking end 1142. After the locking shaft 21 is rotated to the locking position, the locking tooth 211 can fall into the locking recess 1143 (as shown). Figure 7 As shown, the locking connection between the temple body 1 and the hinge joint 2 is formed. The end of the locking tooth 211 does not protrude from the outer opening of the locking groove 114. After the locking tooth enters the locking recess, it achieves locking in the rotation direction of the locking shaft. The locking recess 1143 is a shallow recess with a depth less than the outer diameter of the locking tooth 211. After the locking tooth 211 enters the locking recess 1143, part of it protrudes from the locking recess 1143, which can reduce the open size of the locking groove on the insertion sleeve wall.
[0026] The compression spring 3 is inserted into the end hole 112. One end of the compression spring 3 abuts against the bottom end of the end hole 112, and the other end of the compression spring 3 extends to the shaft insertion hole 111. The compression spring 3 can abut against the locking shaft 21 when the locking shaft 21 is slid into the shaft insertion hole 111 to the position of the locking tooth 211 corresponding to the locking groove 114. Thus, the compression spring 3 applies an axial thrust to the locking shaft 21. This axial thrust drives the locking tooth 211 to fall into and remain in the locking recess 1143. After the locking shaft is inserted into the shaft insertion hole to a certain depth, the locking shaft begins to contact the compression spring. The locking shaft continues to be inserted until the locking teeth reach the end of the axial groove. At this point, the locking shaft is subjected to the spring force of the compression spring. Rotating the locking shaft causes the locking teeth to enter the locking position along the locking groove, releasing the temple body. Under the spring force (i.e., axial thrust) of the compression spring, the locking shaft and the temple body are displaced relative to each other axially, and the locking teeth fall into the locking recess, completing the locking connection. During disassembly, a pushing force is applied to the temple body and the locking shaft to disengage the locking teeth from the locking recess, driving the temple body and the locking shaft to rotate relative to each other, causing the locking teeth of the locking shaft to enter the axial groove. The temple body and the locking shaft can then be axially pulled out, completing the disassembly. To ensure reliable installation of the compression spring, a spring positioning pin 115 is provided at the bottom of the end hole 112. The compression spring 3 is a helical spring, which is sleeved on the elastic positioning pin 115.
[0027] In one embodiment of this utility model, the opening end of the plug sleeve 11 is provided with a stepped flared end 1111, and the hinge part 2 has a shoulder part 22 at the root of the locking shaft 21 that is adapted to the flared end 1111. The shoulder part 22 is positioned and inserted into the flared end 1111. The stepped flared end of the plug sleeve forms a stepped shaft-shaped hole with the shaft plug hole and the flared end. The shoulder part is inserted into the flared end, which realizes a reliable positioning of the root position of the locking shaft, thereby reducing or avoiding shaking after the hinge part and the temple body are assembled, and ensuring the stability and reliability of the temple structure. In addition, the contact between the end face of the shoulder part 22 and the flared end 1111 can control the insertion depth of the locking shaft 21, which on the one hand avoids damage to the locking teeth 211, and on the other hand avoids excessive compression of the compression spring 3. Since the locking shaft is formed on the hinge joint and the insert sleeve is formed on the temple body, as an additional point, the axial mating part formed after the temple body and the hinge joint are assembled is the hinge position close to the hinge joint, that is, close to the frame. The structure is more compact, and the axial connection part is not much different from the traditional non-removable temple, forming a more natural transition and a more beautiful appearance. Moreover, as a simple design, the shoulder 22 can be considered to be formed by increasing the axial length of the hinge joint 2, without the need for special processing. The hinge joint 2 has a larger diameter requirement to ensure the structural strength of the hinge, while the locking shaft usually adopts a smaller diameter design. Thus, there is a diameter difference between the locking shaft and the hinge joint. Therefore, as long as the hinge joint has a preset axial length, the diameter difference can be used to make the metal component a stepped shaft shape, that is, to form a shoulder at the root of the locking shaft. After the temple body and the hinge joint are assembled, the structure is more compact, reliable and beautiful.
[0028] The detachable temple connection mechanism of this utility model adopts a "key and lock" structure, which can effectively balance the ease of temple processing, ease of disassembly and assembly, structural stability and reliability after temple assembly, aesthetic appearance and wearing safety.
Claims
1. A detachable temple for eyeglasses, comprising a temple body, a hinge joint at one end of the temple body, and a connecting mechanism that can be locked and unlocked, wherein the hinge joint and the temple body are detachably connected via the connecting mechanism, characterized in that: The connecting mechanism includes a locking shaft, a plug sleeve, and a compression spring. The insert sleeve is formed on one end of the temple body. The inner hole of the insert sleeve is a blind hole with one end open and the other end closed. From the outside to the inside, the inner hole of the insert sleeve includes a shaft insertion hole body adapted and positioned to the locking shaft and an end hole body for accommodating the compression spring. The inner wall of the shaft insertion hole body has an axial groove along the axial direction. The axial groove is a groove with a bottom in the depth direction. The outer axial end of the axial groove is the inlet and outlet corresponding to the opening end of the inner hole. The insert sleeve has a locking groove. The locking groove is a hole-shaped hole that penetrates the wall of the shaft insertion hole body. The locking groove corresponds to the inner axial end of the axial groove. The locking groove extends circumferentially along the shaft insertion hole body. One end of the locking groove is the screw inlet that connects to the axial groove. The other end of the locking groove is the axial locking end. The axial locking end has a locking recess that extends along the axial direction of the insert sleeve and toward the opening end of the inner hole. The locking shaft is formed on the hinge joint. A single locking tooth protrudes radially from the head of the locking shaft. The locking shaft is inserted into the shaft insertion hole along the open end of the shaft insertion hole. The locking tooth corresponds to and engages with the axial groove. The locking tooth slides down to the corresponding position of the swivel locking groove under the guidance of the axial groove. When the locking tooth corresponds to the swivel locking groove, the locking shaft can rotate relative to the insertion sleeve. The locking shaft has an unlocking position where the locking tooth is located in the axial groove and a locking position where the locking tooth is located at the axial locking end along the rotation direction. After the locking shaft rotates to the locking position, the locking tooth can fall into the locking recess, forming a locking connection between the temple body and the hinge joint. The end of the locking tooth does not protrude out of the outer opening of the swivel locking groove. The compression spring is inserted into the end hole, with one end abutting against the bottom of the end hole and the other end extending to the shaft insertion hole. The compression spring can abut against the locking shaft when the locking shaft slides into the shaft insertion hole to the position of the locking tooth corresponding to the locking groove, thereby applying an axial thrust to the locking shaft through the compression spring. This axial thrust drives the locking tooth to fall into and remain in the locking recess.
2. The detachable temple of the eyeglasses according to claim 1, characterized in that: The rotation angle of the locking shaft from the unlocked position to the locked position is 90°. The temple body includes a plastic component body integrally injection molded with the plug sleeve. The outer contour of the sleeve portion forming the shaft plug hole on the plug sleeve is rectangular. The locking groove forms a through opening only on one side of the rectangular contour of the plug sleeve. The hinge portion with the locking shaft is a metal component.
3. The detachable temple of the eyeglasses according to claim 2, characterized in that: The through opening of the locking groove corresponds to the surface of the temple body facing the human face when it is locked in connection with the hinge joint.
4. The detachable temple of the eyeglasses according to claim 1, characterized in that: The opening end of the plug sleeve is provided with a stepped flare, and the hinge part has a shoulder part at the root of the locking shaft that is adapted to the flare. The shoulder part is positioned and inserted into the flare.
5. The detachable temple of the eyeglasses according to claim 1, characterized in that: The locking recess is a shallow recess with a depth less than the outer diameter of the locking tooth.