Earphone box

Abstract

The utility model relates to earphone technical field discloses an earphone box. Wherein earphone box upper cover one side articulates in bottom shell, and the inner wall of other side is provided with locking boss, the cover body locking subassembly includes knob, driving part, elastic lock core and lock bar, and the inner wall of lock bar is connected in bottom shell along the first direction sliding, and lock bar is provided with locking portion, the sidewall of bottom shell is provided with connecting hole, and driving part is provided with connecting hole along the second direction sliding, and one end of driving part is driven and is connected in knob outside bottom shell, and one end of driving part is driven and is connected in lock bar inside bottom shell, and driving part can drive lock bar moves between locking position or unlocking position when rotating, the outer wall of driving part is provided with first limit slot, and elastic lock core is connected in the inner wall of bottom shell, and one side of first limit slot along the second direction is provided with first inclined sidewall. The utility model provides novel uncovering and closing mode, improves user experience.

Description

Technical Field

[0001] This utility model relates to the field of headphone technology, and in particular to a headphone case. Background Technology

[0002] With the booming development of wireless Bluetooth earphones, charging cases, as an important accessory, play a crucial role in storage and charging. However, most wireless Bluetooth earphone charging cases on the market currently have significant limitations in their opening mechanisms.

[0003] Currently, manual twist-to-open lids dominate the market. This method is relatively simple in structure and low in cost, satisfying users' basic opening and closing needs to a certain extent. However, this single opening method is prone to accidental opening. Furthermore, over time, this single opening method has become uninspired and fails to meet consumers' pursuit of product personalization and differentiation.

[0004] Therefore, there is an urgent need for an earphone case to solve the aforementioned problems. Utility Model Content

[0005] Based on the above, the purpose of this utility model is to provide an earphone case that offers a novel way of opening and closing the lid, improving the user experience. By setting a first limiting groove and using an elastic lock core to provide a limit, the reliability of the earphone case is improved.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An earphone case, comprising:

[0008] A housing assembly, comprising a top cover and a bottom cover, wherein one side of the top cover is hinged to the bottom cover and the inner wall of the other side is provided with a locking boss;

[0009] A cover locking assembly includes a knob, a drive member, an elastic lock cylinder, and a locking rod. The locking rod is slidably connected to the inner wall of the bottom shell along a first direction and has a locking part. The side wall of the bottom shell has a connecting hole, and the drive member is slidably inserted through the connecting hole along a second direction. One end of the drive member located outside the bottom shell is driven and connected to the knob, and the other end of the drive member located inside the bottom shell is driven and connected to the locking rod. When the drive member rotates, it can drive the locking rod to move between a locked position and an unlocked position.

[0010] The outer wall of the drive component is provided with a first limiting groove, and the elastic lock core is connected to the inner wall of the bottom shell; the first limiting groove is provided with a first inclined sidewall along one side of the second direction, and when the lock rod is in the locked position, the elastic lock core abuts against the first limiting groove.

[0011] As a preferred technical solution for an earphone case, the outer wall of the driving component is provided with a second limiting groove, and the second limiting groove is provided with a second inclined sidewall along one side of the circumferential direction of the driving component. When the locking rod is in the unlocked position, the elastic lock core abuts against the second limiting groove.

[0012] As a preferred technical solution for an earphone case, the cover locking assembly further includes a positioning ring. The inner wall of the bottom shell is provided with an annular limiting groove, which is located around the connecting hole. The annular limiting groove includes a large-diameter wall and a small-diameter wall. The positioning ring is located within the annular limiting groove and connected to the large-diameter wall. The driving member is provided with an annular limiting part, which is slidably connected between the small-diameter wall and the positioning ring. The first limiting groove and the second limiting groove are located on the outer wall of the annular limiting part. The elastic lock core is located within the positioning ring.

[0013] As a preferred technical solution for an earphone case, the first limiting groove and the second limiting groove are evenly spaced along the circumferential and axial directions of the driving member.

[0014] As a preferred technical solution for an earphone case, there are two of each of the first limiting groove, the second limiting groove, and the elastic lock cylinder.

[0015] As a preferred technical solution for an earphone case, the driving component has a gear portion at one end inside the bottom shell, and the locking rod has a rack portion, with the gear portion meshing with the rack portion.

[0016] As a preferred technical solution for an earphone case, the cover locking assembly further includes a first elastic element, which is disposed between the knob and the bottom shell, and the first inclined sidewall is located on the side of the first limiting groove away from the locking rod.

[0017] As a preferred technical solution for an earphone case, the knob is provided with a positioning groove on the side near the bottom shell, the first elastic element is sleeved on the driving element, one end of the first elastic element abuts against the bottom of the positioning groove, and the other end abuts against the bottom shell.

[0018] As a preferred technical solution for an earphone case, the inner wall of the bottom shell is provided with two limiting posts spaced apart along a second direction, and the locking rod is provided with two limiting guide holes spaced apart along the second direction. The limiting guide holes extend along the first direction, and the two limiting posts slide through the two limiting guide holes respectively. When the locking rod is in the locked position, the limiting post abuts against one end of the limiting guide hole, and when the locking rod is in the unlocked position, the limiting post abuts against the other end of the limiting guide hole.

[0019] As a preferred technical solution for an earphone case, the end of the knob away from the bottom shell is provided with a long strip protrusion.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model provides an earphone case. When the lid is closed, the locking lever is in the locked position, and the locking part of the locking lever locks the locking protrusion, preventing the lid from opening. Simultaneously, the elastic lock core abuts against the first limiting groove, preventing the drive component from rotating and preventing accidental opening of the lid. When it is necessary to open the lid, the user drives the drive component along a second direction using a knob, causing the elastic lock core to disengage from the first inclined sidewall and move away from the first limiting groove. Then, the user drives the drive component to rotate using the knob, moving the locking lever to the unlocked position, where the locking part avoids the locking protrusion, allowing the lid to rotate relative to the bottom shell, thus opening the lid. Conversely, when it is necessary to close the lid, the lid reaches the closed position. The user then drives the drive component to rotate using a knob, moving the locking lever to the locked position, where the locking part avoids the locking protrusion. The user then drives the drive component to move along a second direction using the knob, moving the elastic lock core into the first limiting groove, thus closing the lid. This headphone case offers a novel way to open and close the lid, improving the user experience. By setting a first limit groove, the elastic lock cylinder provides a limit, improving the reliability of the headphone case. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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 content of the embodiments of this utility model and these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram of the earphone case in the open state according to a specific embodiment of the present utility model;

[0024] Figure 2 This is a partial structural cross-sectional view of the headphone case in the closed state according to a specific embodiment of this utility model;

[0025] Figure 3 This is an exploded view of the structure of the cover locking assembly provided in a specific embodiment of this utility model;

[0026] Figure 4 This is a structural schematic diagram of the cover locking assembly provided in a specific embodiment of this utility model;

[0027] Figure 5 This is a partial structural schematic diagram of the headphone case provided in a specific embodiment of this utility model.

[0028] The markings in the image are as follows:

[0029] 1. Housing assembly; 11. Top cover; 111. Locking boss; 12. Bottom shell; 121. Connecting hole; 122. Annular limiting groove; 1221. Large diameter wall; 1222. Small diameter wall; 123. Annular groove; 124. Limiting post;

[0030] 2. Cover locking assembly; 21. Knob; 211. Positioning groove; 212. Long strip boss; 22. Driving component; 221. First limiting groove; 222. First inclined sidewall; 223. Second limiting groove; 224. Second inclined sidewall; 225. Gear part; 226. Annular limiting part; 23. Elastic lock cylinder; 231. Second elastic element; 232. Limiting block; 233. Connecting block; 24. Locking rod; 241. Locking part; 2411. Extension arm; 2412. Stop arm; 242. Rack part; 243. Limiting guide hole; 25. Positioning ring; 251. Mounting hole; 26. First elastic element. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] like Figures 1-4 As shown, this embodiment provides an earphone case, which includes a shell assembly 1 and a cover locking assembly 2. The shell assembly 1 includes an upper cover 11 and a bottom shell 12. One side of the upper cover 11 is hinged to the bottom shell 12, and the inner wall of the other side is provided with a locking boss 111. The cover locking assembly 2 includes a knob 21, a driving member 22, an elastic lock core 23, and a locking rod 24. The locking rod 24 is slidably connected to the inner wall of the bottom shell 12 along a first direction, and the locking rod 24 is provided with a locking part 241. The side wall of the bottom shell 12 is provided with a connecting hole 121, and the driving member 22 is slidably inserted through the connecting hole 121 along a second direction. One end of the driving member 22 located outside the bottom shell 12 is driven and connected to the knob 21. One end of the driving member 22 located inside the bottom shell 12 is driven to the locking rod 24. When the driving member 22 rotates, it can drive the locking rod 24 to move between the locked position and the unlocked position. The outer wall of the driving member 22 is provided with a first limiting groove 221, and the elastic lock core 23 is connected to the inner wall of the bottom shell 12. The first limiting groove 221 is provided with a first inclined side wall 222 along one side of the second direction. When the locking rod 24 is in the locked position, the locking part 241 can lock the locking boss 111, and the elastic lock core 23 abuts against the first limiting groove 221. The first limiting groove 221 can restrict the rotation of the driving member 22. When the locking rod 24 is in the unlocked position, the locking part 241 avoids the locking boss 111.

[0036] With the cover closed, the locking lever 24 is in the locked position, and the locking part 241 of the locking lever 24 locks the locking boss 111, preventing the cover 11 from opening. Simultaneously, the elastic lock cylinder 23 abuts against the first limiting groove 221, preventing the drive member 22 from rotating and thus preventing accidental opening of the cover 11. When it is necessary to open the cover, the user drives the drive member 22 along the second direction using the knob 21, causing the elastic lock cylinder 23 to disengage from the first limiting groove 221 from the first inclined sidewall 222. Then, the user drives the drive member 22 to rotate using the knob 21, moving the locking lever 24 to the unlocked position. The locking part 241 then avoids the locking boss 111, allowing the cover 11 to rotate relative to the bottom shell 12, thus completing the opening process. Conversely, when the lid needs to be closed, the top cover 11 reaches the closed position. Then, the user drives the drive component 22 to rotate via the knob 21, causing the locking rod 24 to move to the locking position. The locking part 241 avoids the locking protrusion 111. Then, the user drives the drive component 22 to move along the second direction via the knob 21, causing the elastic lock core 23 to move into the first limiting groove 221, completing the closure. This headphone case provides a novel way of opening and closing the lid, improving the user experience. By setting the first limiting groove 221, the elastic lock core 23 provides a limit, preventing accidental opening of the lid due to accidental rotation of the knob 21, thus improving the reliability of the headphone case. In this embodiment, the first direction is X, the second direction is Y, and the first direction, the second direction, and the height direction are perpendicular to each other.

[0037] In this embodiment, the locking rod 24 extends along a first direction, and locking portions 241 are provided at both ends of the locking rod 24. There are two locking protrusions 111, and each locking protrusion 111 corresponds to a locking portion 241. Specifically, the locking portion 241 includes an extension arm 2411 and a stop arm 2412. The extension arm 2411 extends along the height direction and extends out of the upper surface of the bottom shell 12. When the locking rod 24 is in the locked position, the stop arm 2412 is located above the locking protrusion 111, restricting the upward movement of the locking protrusion 111 and realizing the locking of the upper cover 11.

[0038] Preferably, the outer wall of the driving member 22 is provided with a second limiting groove 223, and a second inclined sidewall 224 is provided on one side of the second limiting groove 223 along the circumference of the driving member 22. When the locking rod 24 is in the unlocked position, the elastic lock core 23 abuts against the second limiting groove 223, and the second limiting groove 223 can restrict the movement of the driving member 22 in the second direction. After the user drives the driving member 22 to move in the second direction by the knob 21, so that the elastic lock core 23 is disengaged from the first limiting groove 221, the user drives the driving member 22 to rotate by the knob 21, so that the elastic lock core 23 enters the first limiting groove 221 through the second inclined sidewall 224. The driving member 22 can no longer move in the second direction, which improves the stability of the headphone case in the open state.

[0039] The cover locking assembly 2 also includes a positioning ring 25. An annular limiting groove 122 is provided on the inner wall of the bottom shell 12, surrounding the connecting hole 121. The annular limiting groove 122 includes a large-diameter wall 1221 and a small-diameter wall 1222. The positioning ring 25 is located within the annular limiting groove 122 and connected to the large-diameter wall 1221. The driving member 22 is provided with an annular limiting part 226, which is slidably connected between the small-diameter wall 1222 and the positioning ring 25. A first limiting groove 221 and a second limiting groove 223 are provided on the outer wall of the annular limiting part 226. The elastic lock core 23 is located within the positioning ring 25. The annular limiting part 226 and the knob 21 also serve a limiting function. The annular limiting part 226 prevents the driving member 22 from detaching from the bottom shell 12, and the knob 21 restricts the driving member 22 from fully entering the bottom shell 12.

[0040] Preferably, the cover locking assembly 2 further includes a first elastic element 26, which is disposed between the knob 21 and the bottom shell 12. The first inclined sidewall 222 is located on the side of the first limiting groove 221 away from the locking rod 24. In the closed state, the first elastic element 26 can drive the knob 21 away from the bottom shell 12, thereby driving the driving member 22 away from the locking rod 24. The elastic lock cylinder 23 can enter and remain in the first limiting groove 221 through the first inclined sidewall 222 under the elastic force of the first elastic element 26. When the knob 21 is pressed, the user overcomes the elastic force of the first elastic element 26, causing the elastic lock cylinder 23 to move out of the first limiting groove 221 through the first inclined sidewall 222.

[0041] More preferably, the first elastic element 26 is a spring, and a positioning groove 211 is provided on the side of the knob 21 near the bottom shell 12. The first elastic element 26 is sleeved on the driving element 22, with one end of the first elastic element 26 abutting against the bottom of the positioning groove 211 and the other end abutting against the bottom shell 12. The positioning groove 211 can limit the first elastic element 26, improve the installation accuracy of the first elastic element 26, and improve product reliability.

[0042] In this embodiment, an annular groove 123 is provided on the side of the bottom shell 12 near the knob 21. The annular groove 123 is arranged around the connecting hole 121, and the knob 21 is slidably connected to the annular groove 123. Preferably, a boss is provided at the part of the bottom shell 12 where the connecting hole 121 is provided. The boss serves to thicken the structure, which facilitates the arrangement of the annular groove 123, the connecting hole 121, and the annular limiting groove 122, thereby improving the structural strength.

[0043] In this embodiment, an elongated boss 212 is provided at the end of the knob 21 away from the bottom shell 12. By observing the elongated boss 212, the user can determine the rotation angle of the knob 21, and thus know the position of the locking lever 24.

[0044] In this embodiment, the first limiting groove 221 and the second limiting groove 223 are spaced apart along the circumferential and axial directions of the driving member 22. When the annular limiting part 226 abuts against the inner wall of the bottom shell 12, the first limiting groove 221 and the elastic lock core 23 are located in a first plane perpendicular to the second direction. When the knob 21 abuts against the bottom shell 12, the second limiting groove 223 and the elastic lock core 23 are located in a second plane perpendicular to the second direction. The second plane is located on the side of the first plane away from the locking rod 24. When opening the cover, press the knob 21, and the knob 21 abuts against the bottom shell 12. At this time, the elastic lock cylinder 23 is aligned with the second limiting groove 223. After rotation, it can enter the second limiting groove 223. When closing the cover, rotate the elastic lock cylinder 23, and the elastic lock cylinder 23 moves out through the second inclined side wall 224. When the lock rod 24 is in the unlocked position, the elastic lock cylinder 23 is aligned with the first limiting groove 221 in the second direction. Drive the knob 21 away from the bottom shell 12 so that the annular limiting part 226 abuts against the inner wall of the bottom shell 12. At this time, the elastic lock cylinder 23 enters the first limiting groove 221 through the first inclined side wall 222.

[0045] Preferably, there are two first limiting grooves 221, two second limiting grooves 223, and two elastic lock cylinders 23. In this embodiment, the two first limiting grooves 221 are symmetrically arranged on the outer wall of the annular limiting part 226, the two second limiting grooves 223 are symmetrically arranged on the outer wall of the annular limiting part 226, and the two elastic lock cylinders 23 are symmetrically arranged on both sides of the annular limiting part 226.

[0046] In this embodiment, the elastic lock core 23 includes a second elastic element 231, a limiting block 232, and a connecting block 233. The positioning ring 25 is provided with a radially extending mounting hole 251. The elastic lock core 23 is installed in the mounting hole 251. One end of the second elastic element 231 near the annular limiting part 226 is connected to the limiting block 232, and the other end is connected to the connecting block 233. The connecting block 233 abuts against the large-diameter wall 1221. The second elastic element 231 can drive the limiting part to be embedded in the first limiting groove 221 or the second limiting groove 223.

[0047] In this embodiment, the drive member 22 has a gear portion 225 at one end located inside the bottom shell 12, and the locking rod 24 has a rack portion 242. The gear portion 225 is meshed with the rack portion 242. When the drive member 22 rotates, the gear portion 225 drives the rack portion 242 to move along a first direction. When the drive member 22 slides along a second direction, both the gear portion 225 and the rack portion 242 remain in a meshed state.

[0048] like Figure 5As shown, preferably, the inner wall of the bottom shell 12 is provided with two limiting posts 124 spaced apart along a second direction, and the locking rod 24 is provided with two limiting guide holes 243 spaced apart along a second direction. The limiting guide holes 243 extend along a first direction, and the two limiting posts 124 slide through the two limiting guide holes 243 respectively. When the locking rod 24 is in the locked position, the limiting post 124 abuts against one end of the limiting guide hole 243; when the locking rod 24 is in the unlocked position, the limiting post 124 abuts against the other end of the limiting guide hole 243. When the locking rod 24 slides along the first direction, the locking rod 24 can slide under the limitation of the limiting post 124, improving the movement accuracy of the locking rod 24. When the driving member 22 rotates and drives the locking rod 24 to move to the locked or unlocked position, the limiting post 124 can stop, and the knob 21 cannot continue to rotate, indicating to the user that the locking rod 24 is in place.

[0049] This embodiment also provides the opening and closing principle of the earphone case, as detailed below:

[0050] With the cover closed, the locking rod 24 is in the locked position, and the stop arm 2412 is above the locking boss 111, so the cover 11 cannot be opened. At the same time, the elastic lock cylinder 23 abuts against the first limiting groove 221.

[0051] When it is necessary to open the cover, first press the knob 21 to push the drive component 22. The elastic lock cylinder 23 disengages from the first limiting groove 221 through the first inclined side wall 222, unlocking the two elastic lock cylinders 23 on the positioning ring 25. Then, rotate the knob 21 to drive the drive component 22 to rotate. The drive component 22 engages with the gear part 225 and the rack part 242 to drive the locking rod 24 away from the locking boss 111 of the top cover 11, thereby unlocking the headphone box top cover 11. At the same time, the elastic lock cylinder 23 enters the second limiting groove 223 through the second inclined side wall 224.

[0052] When the cover needs to be closed, manually push the top cover 11. When the top cover 11 reaches the closed position, rotate the knob 21 counterclockwise. The elastic lock cylinder 23 disengages from the second limiting groove 223 via the second inclined side wall 224. The driving member 22 disengages from the two elastic lock cylinders 23. When it can no longer be rotated, that is, the limiting post 124 abuts against one end of the limiting guide hole 243. At this time, the locking rod 24 is in the locked position, and the stop arm 2412 is above the locking boss 111. Release the knob 21. At this time, the driving member 22 and the knob 21 will automatically return to their original positions under the action of the first elastic member 26. The elastic lock cylinder 23 abuts against the first limiting groove 221 again, locking the locking boss 111 of the top cover 11, thus realizing the closing action.

[0053] The headphone case is equipped with a first limiting groove 221 and a second limiting groove 223. The elastic lock core 23 can switch between the first limiting groove 221 and the second limiting groove 223 to lock the headphone case in both closed and open states, thereby improving reliability.

[0054] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. An earphone case, characterized in that, include: The housing assembly (1) includes an upper cover (11) and a bottom shell (12), wherein one side of the upper cover (11) is hinged to the bottom shell (12), and the inner wall of the other side is provided with a locking boss (111). The cover locking assembly (2) includes a knob (21), a drive member (22), an elastic lock cylinder (23), and a locking rod (24). The locking rod (24) is slidably connected to the inner wall of the bottom shell (12) in a first direction, and the locking rod (24) is provided with a locking part (241). The side wall of the bottom shell (12) is provided with a connecting hole (121). The drive member (22) is slidably inserted through the connecting hole (121) in a second direction. One end of the drive member (22) located outside the bottom shell (12) is driven and connected to the knob (21), and the other end of the drive member (22) located inside the bottom shell (12) is driven and connected to the locking rod (24). When the drive member (22) rotates, it can drive the locking rod (24) to move between the locked position and the unlocked position. The outer wall of the drive member (22) is provided with a first limiting groove (221), and the elastic lock core (23) is connected to the inner wall of the bottom shell (12); the first limiting groove (221) is provided with a first inclined sidewall (222) along the second direction, and when the lock rod (24) is in the locked position, the elastic lock core (23) abuts against the first limiting groove (221).

2. The earphone case according to claim 1, characterized in that, The outer wall of the drive member (22) is provided with a second limiting groove (223). The second limiting groove (223) is provided with a second inclined sidewall (224) along one side of the drive member (22) in the circumferential direction. When the locking rod (24) is in the unlocked position, the elastic lock core (23) abuts against the second limiting groove (223).

3. The earphone case according to claim 2, characterized in that, The cover locking assembly (2) further includes a positioning ring (25). The inner wall of the bottom shell (12) is provided with an annular limiting groove (122). The annular limiting groove (122) is arranged around the connecting hole (121). The annular limiting groove (122) includes a large diameter wall (1221) and a small diameter wall (1222). The positioning ring (25) is located in the annular limiting groove (122) and connected to the large diameter wall (1221). The driving member (22) is provided with an annular limiting part (226). The annular limiting part (226) is slidably connected between the small diameter wall (1222) and the positioning ring (25). The first limiting groove (221) and the second limiting groove (223) are provided on the outer wall of the annular limiting part (226). The elastic lock core (23) is provided in the positioning ring (25).

4. The earphone case according to claim 2, characterized in that, The first limiting groove (221) and the second limiting groove (223) are evenly spaced along the circumferential and axial directions of the driving member (22).

5. The earphone case according to claim 2, characterized in that, There are two of each of the first limiting groove (221), the second limiting groove (223), and the elastic lock cylinder (23).

6. The earphone case according to claim 1, characterized in that, The drive unit (22) has a gear part (225) at one end inside the bottom shell (12), and the locking rod (24) has a rack part (242). The gear part (225) is meshed with the rack part (242).

7. The earphone case according to any one of claims 1-6, characterized in that, The cover locking assembly (2) further includes a first elastic element (26), which is disposed between the knob (21) and the bottom shell (12), and the first inclined sidewall (222) is located on the side of the first limiting groove (221) away from the locking rod (24).

8. The earphone case according to claim 7, characterized in that, The knob (21) has a positioning groove (211) on the side near the bottom shell (12). The first elastic member (26) is sleeved on the drive member (22). One end of the first elastic member (26) abuts against the bottom of the positioning groove (211), and the other end abuts against the bottom shell (12).

9. The earphone case according to any one of claims 1-6, characterized in that, The inner wall of the bottom shell (12) is provided with two limiting posts (124) spaced apart along the second direction. The locking rod (24) is provided with two limiting guide holes (243) spaced apart along the second direction. The limiting guide holes (243) extend along the first direction. The two limiting posts (124) slide through the two limiting guide holes (243) respectively. When the locking rod (24) is in the locked position, the limiting post (124) abuts against one end of the limiting guide hole (243). When the locking rod (24) is in the unlocked position, the limiting post (124) abuts against the other end of the limiting guide hole (243).

10. The earphone case according to any one of claims 1-6, characterized in that, The knob (21) has a long boss (212) at the end away from the bottom shell (12).

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