Multi-angle foldable hanging ear structure of an optical line terminal

Abstract

The utility model relates to communication equipment technical field, specifically disclose a multi -angle foldable ear structure of optical line terminal, install on the terminal body, including ear structure, angle fixing mechanism and lock release mechanism, ear structure includes ear body and pivot, pivot fixedly arranged in one end of ear body, the lateral wall of terminal body is rotatably connected with the pivot through the pivot of ear body, make it have the storage state of sticking to the lateral wall of terminal body and at least one away from the lateral wall of terminal body and unfolded installation state, angle fixing mechanism is arranged in the lateral wall of terminal body corresponding ear body rotatory junction, for the ear body is selectively locked in a plurality of different unfolded installation angle, lock release mechanism is configured between ear body and the lateral wall of terminal body, for locking the lateral wall of terminal body in the storage state with ear body, the utility model discloses through foldable and multi -angle locking design, significantly improved the environmental adaptability, operation convenience and transportation storage convenience of ear.

Description

Technical Field

[0001] This utility model relates to the field of communication equipment technology, specifically to a multi-angle foldable hanging ear structure for an optical line terminal. Background Technology

[0002] Communication equipment such as optical line terminals generally adopt rack mounting, which connects and fixes the equipment to the uprights of a standard cabinet through the mounting lugs on both sides of the equipment. This installation method is crucial for the stable deployment and centralized management of the equipment in the cabinet, as well as the intensive use of the data center space.

[0003] In existing technical solutions, mounting ears are usually used as a fixing component of the equipment chassis. For example, Chinese utility model patent CN217063773U discloses a switch device, which includes components such as a lower frame assembly, a top cover, mounting ears, a cover cable plate, and a fan tray. This patent mainly focuses on the overall structure of the device, the heat dissipation airflow, and the modular design. The device can be fixed on a standard equipment rack through the mounting ears on both sides, and the mounting ears on both sides are connected to the device with 7 screws to improve stability and security.

[0004] However, the existing mounting bracket solutions described above still have shortcomings in practical applications. Because the mounting brackets are fixedly connected to the chassis, their installation angle is limited and cannot be adjusted according to the specific conditions of the rack or special installation requirements, thus restricting the installation flexibility and environmental adaptability of the equipment. Furthermore, the fixed, protruding mounting brackets not only increase the overall packaging size during equipment transportation and storage but are also easily lost. In addition, this fixed structure prevents the mounting brackets from being folded up when not in use, which is detrimental to space conservation and equipment protection. Utility Model Content

[0005] To address the technical problems in the prior art, this utility model provides a multi-angle foldable hanging ear structure for optical line terminals, aiming to solve the problems of single installation angle, poor adaptability, large size, and easy loss or damage during transportation and storage caused by the fixed connection of the hanging ear to the chassis in the prior art.

[0006] The technical solution of this utility model is implemented as follows: A multi-angle foldable hook structure for an optical line terminal is installed on the terminal body, including a hook structure, an angle fixing mechanism, and a locking / releasing mechanism, wherein... The ear-hanging structure includes an ear-hanging body and a rotating shaft. The rotating shaft is fixedly disposed at one end of the ear-hanging body, and the ear-hanging body is rotatably connected to the side wall of the terminal body through the rotating shaft. This allows the ear-hanging body to have a retracted state that fits against the side wall of the terminal body, and at least one unfolded installation state that is away from the side wall of the terminal body. The angle fixing mechanism is located at the rotatable connection point of the terminal body corresponding to the ear body, and is used to selectively lock the ear body at multiple different unfolding and installation angles. The locking and releasing mechanism is configured between the ear loop body and the terminal body, and is used to lock the ear loop body to the side wall of the terminal body in the stored state.

[0007] Optionally, the angle fixing mechanism includes a first fastening screw; The first fastening screw is located at the top of the terminal body corresponding to the rotating shaft. The top of the terminal body corresponding to the first fastening screw has a connecting hole that connects to the end of the rotating shaft. The first fastening screw is threaded into the connecting hole. When the first fastening screw is screwed in, the end of the first fastening screw can press against the end of the rotating shaft to generate a frictional torque to prevent the lug body from rotating.

[0008] Optionally, the angle fixing mechanism includes a second fastening screw and a friction pad, wherein, The second fastening screw is located at the top of the terminal body corresponding to the rotating shaft. A connecting hole is provided at the top of the terminal body corresponding to the second fastening screw, which connects to the end of the rotating shaft. The second fastening screw is rotatably connected to the connecting hole. The friction pad is adapted to the size of the connecting hole and is disposed in the connecting hole, and is located between the second fastening screw and the rotating shaft. The top of the friction pad is threadedly connected to the second fastening screw. When the second fastening screw is screwed in, the second fastening screw causes the friction pad to descend and abut against the end of the rotating shaft, so as to generate frictional torque to prevent the lug body from rotating.

[0009] Optionally, the angle fixing mechanism further includes at least one limiting slider; The limiting slider is located on the side wall of the friction liner, and the connecting hole wall is longitudinally provided with a limiting groove for limiting the sliding of the limiting slider.

[0010] Optionally, the friction pad has a first anti-slip texture on the side facing the end of the shaft to increase friction.

[0011] Optionally, the locking and releasing mechanism includes a press-locking latch; The male and female buckles of the press-locking buckle are respectively located on the inner side of the ear body and the side wall of the terminal body; When the ear body is rotated to the retracted state, the male and female buckles engage with each other, locking the ear body. Applying external force to press the ear body can separate it and release the lock.

[0012] Optionally, the locking and releasing mechanism may further include an elastic element; The elastic element is disposed on the side wall of the terminal body and is located between the inner side of the terminal body and the ear body. When the self-locking buckle is pressed to release the lock, the elastic element releases elastic potential energy, providing the lug body with the initial driving force to rotate around the pivot.

[0013] Optionally, the side wall of the terminal body is provided with a receiving groove corresponding to the ear body, and the shape of the receiving groove is adapted to the outline of the ear body. When the ear loop body is rotated to the storage state, the ear loop body is embedded and housed in the receiving groove.

[0014] Optionally, a multi-angle foldable ear structure for an optical line terminal further includes a stop block, which is disposed on the side wall of the terminal body at the end of the ear body corresponding to the end of the ear body and is slidably connected to the terminal body. When the ear loop body is rotated to the retracted state, the sliding stop block engages with the outer wall of the ear loop body to prevent accidental activation of the locking and releasing mechanism.

[0015] Optionally, a multi-angle foldable lug structure for an optical line terminal may further include a second anti-slip texture; the second anti-slip texture is provided on the outer surface of the stop block to increase the operating friction.

[0016] Compared with the prior art, the multi-angle foldable hanging ear structure of the optical line terminal provided by this utility model has the following advantages: (1) By setting an angle fixing mechanism, the hanging ear body can be selectively locked at multiple unfolded installation angles, overcoming the problem of the traditional hanging ear having a single installation angle, and can adapt to different cabinet environments and special installation requirements; at the same time, the hanging ear structure adopts a foldable design, combined with a locking and releasing mechanism and a receiving slot, so that the hanging ear can be completely folded up and attached to the side wall of the terminal body when not in use, forming a compact overall structure, effectively reducing the size of the equipment, reducing the risk of transportation collisions, avoiding the loss of the hanging ear, and improving the product's space adaptability and transportation and storage convenience.

[0017] (2) The locking and releasing mechanism adopts a press-to-lock buckle combined with an elastic element to achieve quick locking and one-click opening of the ear loop. The operation process is tool-free, labor-saving and efficient. The stop block and the second anti-slip texture further prevent accidental touch, improve the safety of use and greatly improve the user's operating experience.

[0018] (3) The angle fixing mechanism adopts a screw or a screw combined with friction pad and limit slider to achieve the stability of angle adjustment and the reliability of locking; the anti-slip texture design further enhances friction, prevents loosening, and ensures that the equipment can maintain a stable connection under various installation angles. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the storage state of the multi-angle foldable hanging ear structure of the optical line terminal of this utility model; Figure 2 This is a schematic diagram of the unfolded state of the multi-angle foldable hanging ear structure of the optical line terminal of this utility model; Figure 3 for Figure 2 Cross-sectional view along line AA, schematic diagram of the second embodiment of the angle fixing mechanism; Figure 4 This is a split diagram of the angle fixing mechanism of the multi-angle foldable hanging ear structure of the optical line terminal of this utility model; Figure 5 This is a split diagram of the first embodiment of the angle fixing mechanism of the multi-angle foldable hanging ear structure of the optical line terminal of this utility model.

[0020] In the diagram: 1. Terminal body; 101. Connecting hole; 102. Limiting groove; 103. Receiving groove; 2. Hanging ear structure; 21. Hanging ear body; 22. Rotating shaft; 3. Angle fixing mechanism; 31. First fastening screw; 32. Second fastening screw; 33. Friction pad; 331. First anti-slip texture; 34. Limiting slider; 4. Locking and releasing mechanism; 41. Press-to-lock buckle; 42. Elastic element; 5. Stop block; 6. Second anti-slip texture. Detailed Implementation

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

[0022] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0027] Please see Figure 1-5 The present invention proposes a multi-angle foldable ear structure for an optical line terminal, which is installed on the terminal body 1 and includes an ear structure 2, an angle fixing mechanism 3 and a locking and releasing mechanism 4.

[0028] like Figure 1-3As shown, the ear hook structure 2 includes an ear hook body 21 and a rotating shaft 22. The rotating shaft 22 is fixedly disposed at one end of the ear hook body 21, and the ear hook body 21 is rotatably connected to the side wall of the terminal body 1 through the rotating shaft 22. This allows the ear hook body 21 to have a retracted state that fits against the side wall of the terminal body 1, and at least one unfolded installation state that is away from the side wall of the terminal body 1. An angle fixing mechanism 3 is disposed at the rotatable connection point of the terminal body 1 corresponding to the ear hook body 21, and is used to selectively lock the ear hook body 21 at multiple different unfolded installation angles. A locking and releasing mechanism 4 is disposed between the ear hook body 21 and the terminal body 1, and is used to lock the ear hook body 21 to the side wall of the terminal body 1 in the retracted state.

[0029] Specifically, the ear-mount structure 2 is rotatably connected via a pivot 22, which is the basis for achieving the folding function. This allows the ear-mount body 21 to switch between a stored state and a working state, effectively solving the problem mentioned in the background technology that fixed ear-mounts occupy a large space and are not conducive to transportation and storage. The setting of the angle fixing mechanism 3 is the key innovation of this solution. It allows the ear-mount body 21 to select different installation angles according to the actual cabinet environment, greatly improving the environmental adaptability of the equipment and overcoming the shortcomings of the traditional ear-mount's single installation angle. The configuration of the locking and releasing mechanism 4 ensures the stability of the ear-mount in the stored state, preventing accidental unfolding due to vibration during transportation, and avoiding the risk of losing the ear-mount. The coordinated work of these three mechanisms realizes the intelligence and multi-functionality of the ear-mount structure, providing a more flexible and reliable installation solution for optical line terminals.

[0030] In some embodiments, such as Figure 5 As shown, the angle fixing mechanism 3 includes a first fastening screw 31; the first fastening screw 31 is located at the top of the terminal body 1 corresponding to the rotating shaft 22, and a connecting hole 101 is opened at the top of the terminal body 1 corresponding to the first fastening screw 31, which connects to the end of the rotating shaft 22. The first fastening screw 31 is threaded into the connecting hole 101; when the first fastening screw 31 is screwed in, the end of the first fastening screw 31 can press against the end of the rotating shaft 22 to generate a frictional torque to prevent the lug body 21 from rotating.

[0031] Specifically, this embodiment provides a simple and effective angle fixing solution. The first fastening screw 31 is threaded into the connecting hole 101. When it is necessary to fix the angle of the mounting lug, simply screw the first fastening screw 31 in so that its end abuts against the end of the rotating shaft 22. Locking is achieved through the generated frictional torque. This design has the advantages of simple structure, low manufacturing cost, and convenient operation. In practical applications, maintenance personnel can adjust the mounting lug to a suitable angle according to the specific conditions of the cabinet, and then fix it with the first fastening screw 31, which greatly improves the flexibility and efficiency of installation. At the same time, this friction locking method allows for fine-tuning, providing convenience for special installation environments.

[0032] In some embodiments, such as Figure 2-4 As shown, the angle fixing mechanism 3 includes a second fastening screw 32 and a friction pad 33. The second fastening screw 32 is located at the top of the terminal body 1 corresponding to the rotating shaft 22. A connecting hole 101 is provided at the top of the terminal body 1 corresponding to the second fastening screw 32, which leads to the end of the rotating shaft 22. The second fastening screw 32 is rotatably connected to the connecting hole 101. The friction pad 33 is adapted to the size of the connecting hole 101 and is located in the connecting hole 101, between the second fastening screw 32 and the rotating shaft 22. The top of the friction pad 33 is threadedly connected to the second fastening screw 32. When the second fastening screw 32 is screwed in, the second fastening screw 32 drives the friction pad 33 to descend and abut against the end of the rotating shaft 22, so as to generate a frictional torque to prevent the lug body 21 from rotating.

[0033] Specifically, this embodiment provides another more reliable angle fixing scheme; by setting a friction pad 33 and connecting the second fastening screw 32 to the friction pad 33 by thread, the force is effectively transmitted; when the second fastening screw 32 is screwed in, the friction pad 33 is uniformly pressed against the end of the rotating shaft 22, increasing the contact area and improving the stability and reliability of locking; the friction pad 33 can be made of copper-based powder metallurgy material, which has good friction performance and wear resistance, can provide stable and reliable friction torque, and at the same time avoids wear on the rotating shaft 22; in practical applications, this structure is particularly suitable for occasions with large vibration environments, and can effectively prevent loosening caused by vibration.

[0034] In some embodiments, such as Figure 3-4 As shown, the angle fixing mechanism 3 also includes at least one limiting slider 34; the limiting slider 34 is disposed on the side wall of the friction liner 33, and the connecting hole 101 is longitudinally provided with a limiting groove 102 for limiting the sliding of the limiting slider 34.

[0035] Specifically, this implementation scheme, through the cooperation of the limiting slider 34 and the limiting groove 102, ensures that the friction pad 33 can only move vertically within the connecting hole 101, preventing it from rotating when the second fastening screw 32 rotates. This design ensures that the contact surface between the friction pad 33 and the end of the rotating shaft 22 remains parallel, making the pressure distribution more uniform and improving the stability of the locking effect. At the same time, the limiting structure also prevents the friction pad 33 from uneven wear due to long-term use, extending its service life. In the actual assembly process, this structure also facilitates the accurate positioning and installation of the friction pad 33, improving production efficiency.

[0036] In some embodiments, such as Figure 4 As shown, the friction pad 33 has a first anti-slip texture 331 on the side facing the end of the rotating shaft 22 to increase friction.

[0037] Specifically, the first anti-slip texture 331 further enhances the friction coefficient between the friction pad 33 and the end of the rotating shaft 22, improving the reliability of locking. These anti-slip textures can be in the form of a cross-grid, radial, or other pattern design that can effectively increase friction. In actual use, the first anti-slip texture 331 can be embedded in the micro-unevenness of the end face of the rotating shaft 22 to form a mechanical interlocking effect, greatly improving the resistance to vibration and loosening. Especially during long-term use, even if the preload decreases slightly due to vibration or temperature changes, the first anti-slip texture 331 can still provide sufficient friction to maintain the stable position of the lug.

[0038] In some embodiments, such as Figure 2 , Figure 5 As shown, the locking and releasing mechanism 4 includes a press-locking buckle 41; the male and female buckles of the press-locking buckle 41 are respectively located on the inner side of the ear body 21 and the side wall of the terminal body 1; when the ear body 21 is rotated to the storage state, the male and female buckles are engaged with each other to lock the ear body 21, and applying external force to press the ear body 21 can separate it and release the lock.

[0039] Specifically, the press-locking buckle 41 design enables quick locking and releasing of the ear in the folded-out state; the male and female buckles are designed with a beveled guide, allowing for automatic alignment and engagement when the ear is closed, simplifying operation; when the ear needs to be unfolded, simply apply appropriate pressure to the ear body 21 to separate the male and female buckles. This design not only avoids the use of additional locking tools, improving operational efficiency, but also ensures reliability in the folded-out state through mechanical interlocking, effectively preventing accidental unfolding due to vibration during transportation; in practical applications, this design greatly simplifies the operation process for on-site installers.

[0040] In some embodiments, such as Figure 2 , Figure 5 As shown, the locking and unlocking mechanism 4 also includes an elastic element 42; the elastic element 42 is disposed on the side wall of the terminal body 1 and located between the inner side of the terminal body 1 and the ear loop body 21; when the self-locking buckle 41 is pressed to unlock, the elastic element 42 releases elastic potential energy, providing the ear loop body 21 with the initial driving force to rotate around the pivot 22.

[0041] Specifically, the design of the elastic element 42 significantly enhances the user experience. When the self-locking buckle 41 is pressed to unlock, the elastic potential energy stored in the elastic element 42 is released instantly, providing an initial unfolding torque to the ear body 21, allowing the ear to automatically spring open at a certain angle. This design eliminates the need for the operator to manually pry open the ear, making it particularly useful in confined server rack environments. The elastic element 42 can be made of stainless steel sheet or stainless steel compression spring, which are corrosion-resistant and have a long lifespan, ensuring long-term reliability. In practical applications, this design greatly simplifies the installation process and improves work efficiency.

[0042] In some embodiments, such as Figure 2 , Figure 5 As shown, a receiving groove 103 is provided on the side wall of the terminal body 1 corresponding to the ear body 21. The shape of the receiving groove 103 is adapted to the outline of the ear body 21. When the ear body 21 is rotated to the storage state, the ear body 21 is embedded and housed in the receiving groove 103.

[0043] Specifically, the design of the receiving slot 103 enables the complete embedded storage of the ear loop; by adapting the shape of the receiving slot 103 to the contour of the ear loop body 21, it ensures that the ear loop can be completely embedded inside the terminal body 1 in the stored state, forming a flat outer surface. This design is not only aesthetically pleasing, but more importantly, it effectively reduces the overall size of the device, providing convenience for transportation and storage; in actual packaging and transportation, this embedded design avoids the protruding part of the ear loop from colliding with other items, reducing the risk of damage; at the same time, this design also allows multiple devices to be stacked tightly, improving space utilization.

[0044] In some embodiments, such as Figure 2 , Figure 5 As shown, a multi-angle foldable ear structure for an optical line terminal also includes a stop block 5. The stop block 5 is located on the side wall of the terminal body 1 at the end of the ear body 21 and is slidably connected to the terminal body 1. When the ear body 21 is rotated to the storage state, the slidable stop block 5 is engaged with the outer wall of the ear body 21 to prevent accidental activation of the locking and releasing mechanism 4.

[0045] Specifically, the stop block 5 provides additional safety. Through a sliding connection, the stop block 5 can be moved to the outside of the lug body 21 when needed, forming a physical barrier to prevent the locking and releasing mechanism 4 from being accidentally opened due to accidental collisions or misoperation. This design is particularly suitable for environments with high vibration or for long-distance transportation. In actual use, when the equipment needs to be transported, the stop block 5 can be slid to the locked position. When the equipment arrives at the site and needs to be installed, the stop block 5 can be moved away. This double insurance mechanism greatly improves the reliability of the product and avoids damage caused by accidental unfolding.

[0046] In some embodiments, such as Figure 2 , Figure 5 As shown, a multi-angle foldable hanging ear structure for an optical line terminal also includes a second anti-slip texture 6; the second anti-slip texture 6 is provided on the outer surface of the stop block 5 to increase the operating friction.

[0047] Specifically, the second anti-slip texture 6 significantly improves the user experience of the stop block 5. These anti-slip textures can be striped, wavy, dotted, or other texture designs that effectively increase friction, allowing the operator to easily slide the stop block 5 even with sweaty or oily hands. In practical applications, this detail reflects the product's human-centered design, especially in environments with high humidity such as computer rooms or when the operator is wearing gloves. The second anti-slip texture 6 provides a better feel, ensuring that the stop block 5 can move accurately and smoothly to the predetermined position, thus improving the convenience and reliability of use.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-angle foldable hook structure for an optical line terminal, mounted on the terminal body (1), characterized in that, It includes a lug structure (2), an angle fixing mechanism (3), and a locking and releasing mechanism (4), wherein, The ear hook structure (2) includes an ear hook body (21) and a rotating shaft (22). The rotating shaft (22) is fixedly disposed at one end of the ear hook body (21). The ear hook body (21) is rotatably connected to the side wall of the terminal body (1) through the rotating shaft (22). This allows the ear hook body (21) to have a retracted state that fits against the side wall of the terminal body (1) and at least one unfolded installation state that is away from the side wall of the terminal body (1). The angle fixing mechanism (3) is located at the rotatable connection between the terminal body (1) and the ear-mounted body (21), and is used to selectively lock the ear-mounted body (21) at multiple different unfolding and installation angles. The locking and releasing mechanism (4) is disposed between the ear loop body (21) and the terminal body (1) for locking the ear loop body (21) to the side wall of the terminal body (1) in the storage state; The angle fixing mechanism (3) includes a second fastening screw (32) and a friction pad (33), wherein, The second fastening screw (32) is located at the top of the terminal body (1) corresponding to the rotating shaft (22). The top of the terminal body (1) corresponding to the second fastening screw (32) has a connecting hole (101) that connects to the end of the rotating shaft (22). The second fastening screw (32) is rotatably connected to the connecting hole (101). The friction pad (33) is adapted to the size of the connecting hole (101) and is located in the connecting hole (101) and between the second fastening screw (32) and the rotating shaft (22). The top of the friction pad (33) is threadedly connected to the second fastening screw (32). When the second fastening screw (32) is screwed in, the second fastening screw (32) drives the friction pad (33) to descend and abut against the end of the rotating shaft (22) to generate frictional torque to prevent the lug body (21) from rotating.

2. The multi-angle foldable hanging ear structure of an optical line terminal according to claim 1, characterized in that, The angle fixing mechanism (3) includes a first fastening screw (31); The first fastening screw (31) is located at the top of the terminal body (1) corresponding to the rotating shaft (22). The top of the terminal body (1) corresponding to the first fastening screw (31) has a connecting hole (101) that connects to the end of the rotating shaft (22). The first fastening screw (31) is threaded into the connecting hole (101). When the first fastening screw (31) is screwed in, the end of the first fastening screw (31) can press against the end of the rotating shaft (22) to generate a frictional torque to prevent the lug body (21) from rotating.

3. The multi-angle foldable hanging ear structure of an optical line terminal according to claim 1, characterized in that, The angle fixing mechanism (3) also includes at least one limiting slider (34); The limiting slider (34) is located on the side wall of the friction liner (33), and the connecting hole (101) is longitudinally provided with a limiting groove (102) for limiting the sliding of the limiting slider (34).

4. The multi-angle foldable hanging ear structure of an optical line terminal according to claim 3, characterized in that, The friction pad (33) has a first anti-slip groove (331) on the side facing the end of the shaft (22) to increase friction.

5. The multi-angle foldable hanging ear structure of an optical line terminal according to claim 1, characterized in that, The locking and releasing mechanism (4) includes a press-locking latch (41); The male and female buckles of the press-locking buckle (41) are respectively located on the inner side of the ear body (21) and the side wall of the terminal body (1); When the ear loop body (21) is rotated to the storage state, the male buckle and the female buckle are engaged to lock the ear loop body (21). Applying external force to press the ear loop body (21) can separate it and release the lock.

6. The multi-angle foldable hanging ear structure of an optical line terminal according to claim 5, characterized in that, The locking and releasing mechanism (4) also includes an elastic element (42); The elastic element (42) is provided on the side wall of the terminal body (1) and is located between the inner side of the terminal body (1) and the ear-hanging body (21). When the self-locking buckle (41) is pressed to release the lock, the elastic element (42) releases elastic potential energy, providing the ear body (21) with the initial driving force to rotate around the pivot (22).

7. The multi-angle foldable hanging ear structure of an optical line terminal according to claim 1, characterized in that, The terminal body (1) has a receiving groove (103) on its side wall corresponding to the ear hook body (21), and the shape of the receiving groove (103) is adapted to the outline of the ear hook body (21). When the ear loop body (21) is rotated to the storage state, the ear loop body (21) is embedded and housed in the receiving groove (103).

8. The multi-angle foldable hanging ear structure of an optical line terminal according to claim 7, characterized in that, It also includes a stop block (5), which is located on the side wall of the terminal body (1) at the end of the ear body (21) and is slidably connected to the terminal body (1); When the ear loop body (21) is rotated to the storage state, the sliding stop block (5) is engaged with the outer wall of the ear loop body (21) to prevent accidental activation of the locking and releasing mechanism (4).

9. The multi-angle foldable hanging ear structure of an optical line terminal according to claim 8, characterized in that, It also includes a second anti-slip texture (6); the second anti-slip texture (6) is provided on the outer surface of the stop block (5) to increase the operating friction.

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