A floating center spin cap earphone box and earphone assembly

Abstract

The application relates to the field of electric communication technology, and particularly discloses a floating center rotary cap earphone box and an earphone assembly, which comprises a charging bottom box, a rotary cap, a positioning convex ring assembly and a compression spring. When the rotary cap is rotated, the rotating cap positioning ring repeatedly combines and separates with the bottom box positioning ring. As long as the rotary cap is rotated to the clamping state, the relative positioning between the charging bottom box and the rotary cap can be realized, so that the earphone body can be taken and placed. First, since the main parts that are mutually rubbed are the rotating cap positioning ring and the bottom box positioning ring, the rotary cap and the charging bottom box are effectively prevented from being damaged due to rubbing and scratching. Second, the reset spring can continuously press the rotary cap downward to tightly press the positioning convex ring assembly, thereby avoiding the up-down and left-right shaking problem of the rotary cap caused by assembly tolerance. Third, the number of teeth of the rotating cap positioning ring and the bottom box positioning ring can be set to realize positioning at different angles.

Description

Technical Field

[0001] This invention relates to the field of telecommunications technology, and in particular to a floating center-screw-cap headphone case and headphone assembly. Background Technology

[0002] Current headphone cases are generally flip-top designs, including a charging base, a hinge mechanism, and a flip-top cover hinged to the rear of the charging base. When the flip-top cover is rotated upwards to its maximum opening angle, if pressure is continued to be applied to the front of the flip-top cover, the hinge joint between the charging base and the flip-top cover can easily break.

[0003] To address the issue of easy breakage at the hinge joint between the charging base and the flip cover, a solution has been developed... Figure 1 and Figure 2 The center-screw-top earphone case shown includes a charging base 1 and a rotating cover 2. The charging base 1 is provided with a vertically arranged central pivot 101 and a plurality of storage compartments 102 arranged around the central pivot 101. The center position of the rotating cover 2 is rotatably connected to the charging base 1 via the central pivot 101.

[0004] The rotating cover 2 is configured to rotate relative to the charging base box 1 to a closed state that covers all the storage compartments 102 (e.g., ...). Figure 1 As shown), and having an open state where it rotates relative to the charging base 1 to open all the storage compartments 102 (as shown). Figure 2 (As shown).

[0005] It is understandable that when the user rotates the cover 2 to the closed or open position, the cover 2 should automatically position itself relative to the charging base 1 to facilitate the placement and removal of the earphones.

[0006] Therefore, the existing center-screw-top headphone case needs to be improved so that the rotating cover can automatically position itself after rotating relative to the bottom case, so as to take out and put in the headphone body.

[0007] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0008] One object of the present invention is to provide a floating center-screw-top headphone case and headphone assembly, wherein the rotating cover can automatically position itself after rotating relative to the bottom case, so as to take out and put in the headphone body.

[0009] To achieve the above objectives, in one aspect, the present invention provides a floating center-screw-cap headphone case, comprising:

[0010] A charging base box, wherein the charging base box is provided with a vertically arranged central pivot and a plurality of storage compartments arranged around the central pivot;

[0011] A rotating cover, wherein the center position of the rotating cover is rotatably connected to the central rotating shaft, and the center position of the rotating cover is slidably connected to the central rotating shaft up and down;

[0012] A positioning protrusion ring assembly includes a bottom box positioning ring installed on the top surface of the charging bottom box and a rotating cover positioning ring installed on the bottom of the rotating cover; wherein both the bottom box positioning ring and the rotating cover positioning ring are sleeved on the outside of the central rotating shaft, and the two are rotatably engaged.

[0013] A compression spring is provided to drive the rotating cover to slide toward the charging base box, causing the rotating cover positioning ring to press down on the base box positioning ring.

[0014] Optionally, the rotating cover has a central cavity for inserting the central rotating shaft, and the rotating shaft cavity contains:

[0015] A rotating cover limiting component, wherein the head of the rotating cover limiting component is slidably connected to the rotating shaft insertion cavity, and the bottom surface of the rotating cover limiting component is plugged into and pulled out of the upper end of the central rotating shaft.

[0016] A locking bolt passes through the rotating cover limiting member and is threadedly connected to the central rotating shaft.

[0017] Optionally, the top surface of the central rotating shaft is provided with a rotating shaft limiting slot, and the rotating cover limiting component is provided with a rotating cover limiting block that is inserted into the rotating shaft limiting slot from top to bottom.

[0018] Optionally, the compression spring is sleeved outside the rotating cover limiting member and located between the head of the rotating cover limiting member and the bottom of the rotating shaft insertion cavity.

[0019] Optionally, a floating slip ring is provided between the head of the rotating cover limiting member and the compression spring;

[0020] The floating slip ring is sleeved on the outside of the rotating cover limiting member, and the floating slip ring is rotatably and slidably connected to the rotating cover limiting member.

[0021] The floating slip ring sleeve has a cavity wall that is inserted into the rotating shaft cavity to limit the relative rotation of the floating slip ring and the rotating cover, and the floating slip ring and the rotating cover are slidably connected up and down;

[0022] The top surface of the floating slip ring is provided with a plurality of slip ring sound-emitting blocks, and the head of the rotating cover limiting member is provided with a slip ring sound-emitting slot corresponding to the position of each slip ring sound-emitting block.

[0023] Optionally, one side of the slip ring sound-emitting block is provided with a slip ring guide slope to guide the floating slip ring to rotate in the forward direction relative to the rotating cover limiting member;

[0024] On the other side of the slip ring sound-emitting block, there is a slip ring thrust vertical surface that restricts the floating slip ring from rotating in the opposite direction relative to the cover limiting member.

[0025] Optionally, the bottom surface of the bottom box positioning ring is provided with a plurality of downwardly protruding bottom ring limiting blocks, and the top surface of the charging bottom box is provided with a bottom box limiting slot for inserting the corresponding bottom ring limiting block at the position of each bottom ring limiting block.

[0026] The top surface of the rotating cover positioning ring is provided with an upwardly protruding cover ring limiting block, and the bottom surface of the rotating cover is provided with a rotating cover limiting slot for inserting the corresponding cover ring limiting block at the position of each cover ring limiting block.

[0027] Optionally, the top surface of the bottom box positioning ring is provided with a plurality of equally spaced bottom ring positioning grooves;

[0028] Each of the rotating cover positioning rings has a cover ring positioning block corresponding to the position of each of the bottom ring positioning grooves.

[0029] On the other hand, an earphone assembly is provided, including the aforementioned floating center-screw-cap earphone case and two earphone bodies housed within the floating center-screw-cap earphone case.

[0030] Optionally, the floating center-screw-top earphone case also houses a Bluetooth adapter for wireless communication with the two earphone bodies.

[0031] The beneficial effect of this invention is that it provides a floating center-screw-cap headphone case and headphone assembly:

[0032] Under normal circumstances, the rotating cover is in the closed state, and the bottom box positioning ring and the rotating cover positioning ring are engaged with each other to achieve relative positioning between the charging bottom box and the rotating cover.

[0033] When you need to remove the earphone, rotate the cover. The rotating cover will cause the cover positioning ring to rotate relative to the bottom box positioning ring. As the cover positioning ring rotates, it will gradually detach from the bottom box positioning ring, thereby causing the rotating cover to compress the spring and move upward relative to the charging bottom box.

[0034] Continue rotating the cover. When the cover positioning ring engages with the bottom box positioning ring again, the cover has been rotated to the open position. Since the cover positioning ring has engaged with the bottom box positioning ring again, the relative positioning between the charging bottom box and the cover is achieved.

[0035] Therefore, the floating center-screw-cover headphone case and headphone assembly provided by the present invention can automatically position the cover after it rotates relative to the bottom box, so as to take out and put in the headphone body. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 A schematic diagram of an existing center-screw-top headphone case in the closed state, provided for background art;

[0038] Figure 2 A schematic diagram of an existing center-screw-top headphone case in the open state, provided for background art;

[0039] Figure 3 A schematic diagram of the floating center-screw-cap earphone case provided in the embodiment at the first cross-sectional position;

[0040] Figure 4 for Figure 3 A partially enlarged schematic diagram of the limiting component at the transfer cover;

[0041] Figure 5 An exploded view of the floating center-screw-cap headphone case provided in the embodiment at the second cross-section (the angle between the first cross-section and the second cross-section is 90°);

[0042] Figure 6 An exploded view of the outer side of the floating center-screw-cap headphone case provided in the embodiment;

[0043] Figure 7 This is a schematic diagram of the positioning convex ring assembly provided in the embodiment.

[0044] In the picture:

[0045] 1. Charging base box; 101. Central hinge; 1011. Hinge limiting slot; 102. Storage compartment; 103. Base box limiting slot;

[0046] 2. Rotating cover; 201. Rotating shaft cavity; 202. Rotating cover limiting slot;

[0047] 3. Positioning convex ring assembly;

[0048] 301. Bottom box positioning ring; 3011. Bottom ring positioning groove; 3012. Bottom ring limiting block;

[0049] 302. Cover positioning ring; 3021. Cover ring positioning block; 3022. Cover ring limiting block;

[0050] 4. Turn-on cover limiting component; 401. Turn-on cover limiting block; 402. Slip ring sound-emitting groove;

[0051] 5. Tighten the bolts;

[0052] 6. Compression spring;

[0053] 7. Floating slip ring; 701. Slip ring limit block; 702. Slip ring sound-generating block; 7021. Slip ring guide ramp; 7022. Slip ring thrust vertical surface. Detailed Implementation

[0054] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0055] In the description of this invention, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present simultaneously. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be an intermediate component present simultaneously.

[0056] Furthermore, terms such as “long,” “short,” “inner,” and “outer” indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the purpose of describing the present invention and are not intended to indicate or imply that the device or component referred to must have this specific orientation or operate in a specific orientational configuration. Therefore, they should not be construed as limitations of the present invention.

[0057] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0058] This invention provides a floating center-screw-cap earphone case and earphone assembly, suitable for use with mobile phones or computers for listening to music and / or voice interaction. It has the advantage that the rotating cap can automatically position itself after rotating relative to the base box, which is beneficial for users to take out and put in the earphone body.

[0059] In this embodiment, the earphone assembly includes a floating center-screw-cap earphone case and two earphone bodies housed in the floating center-screw-cap earphone case. The earphone bodies can be directly connected to a mobile phone or other devices via Bluetooth.

[0060] Optionally, to enable the headphone assembly to be compatible with computers that do not have Bluetooth functionality, the floating center-screw-top headphone case can also house a Bluetooth adapter that wirelessly connects to the two headphone bodies. After inserting the Bluetooth adapter into the computer's USB port, the headphone bodies can wirelessly connect to the computer via the Bluetooth adapter.

[0061] See Figure 3 The floating center-screw-top earphone case includes a charging base 1, a rotating cover 2, a positioning protrusion ring assembly 3, a rotating cover limiting component 4, a locking bolt 5, and a compression spring 6.

[0062] The charging base box 1 has a vertically arranged central pivot 101 and a plurality of storage compartments 102 arranged around the central pivot 101. Specifically, when the earphone assembly includes a Bluetooth adapter, there are three storage compartments 102, which are arranged in a triangle around the central pivot 101, with a 120° interval between adjacent storage compartments 102, and each earphone and Bluetooth adapter are placed in one storage compartment 102. For ease of description, this embodiment is described with three storage compartments 102. It can be understood that in some other embodiments, when the earphone assembly does not include a Bluetooth adapter, there are two storage compartments 102. Optionally, the two storage compartments 102 are symmetrically arranged at 180° about the central pivot 101, and each storage compartment 102 holds one earphone.

[0063] See Figure 4 The center of the rotating cover 2 is rotatably connected to the central rotating shaft 101, and the center of the rotating cover 2 is slidably connected to the central rotating shaft 101. Specifically, the center of the rotating cover 2 is provided with a rotating shaft insertion cavity 201 for the central rotating shaft 101 to be inserted, and both the rotating cover limiting member 4 and the locking bolt 5 are located in the rotating shaft insertion cavity 201.

[0064] Optionally, the head of the rotating cover limiting member 4 is slidably connected to the rotating shaft insertion cavity 201, and the bottom surface of the rotating cover limiting member 4 is plugged into and pulled into the upper end of the central rotating shaft 101; the locking bolt 5 passes through the rotating cover limiting member 4 and is threadedly connected to the central rotating shaft 101.

[0065] Further, see Figure 5The top surface of the central rotating shaft 101 is provided with a rotating shaft limiting slot 1011, and the rotating cover limiting member 4 is provided with a rotating cover limiting block 401 that inserts from top to bottom into the rotating shaft limiting slot 1011. Specifically, after the central rotating shaft 101 is inserted into the rotating shaft insertion cavity 201, the rotating cover limiting block 401 is engaged in the rotating shaft limiting slot 1011. At this time, tightening the locking bolt 5 will lock the rotating cover limiting member 4 onto the central rotating shaft 101, thereby preventing the rotating cover limiting member 4 from rotating or sliding up and down relative to the central rotating shaft 101.

[0066] See Figure 6 and Figure 7 The positioning protruding ring assembly 3 includes a bottom box positioning ring 301 installed on the top surface of the charging bottom box 1 and a rotating cover positioning ring 302 installed on the bottom of the rotating cover 2; wherein, both the bottom box positioning ring 301 and the rotating cover positioning ring 302 are sleeved on the outside of the central rotating shaft 101, and the two are rotatably engaged.

[0067] Specifically, the top surface of the bottom box positioning ring 301 is provided with a plurality of equally spaced bottom ring positioning grooves 3011; the cover positioning ring 302 is provided with a cover ring positioning block 3021 corresponding to the position of each bottom ring positioning groove 3011.

[0068] The compression spring 6 is sleeved outside the rotating cover limiting member 4 and is located between the head of the rotating cover limiting member 4 and the bottom of the rotating shaft insertion cavity 201. It is used to drive the rotating cover 2 to slide toward the charging bottom box 1, so that the rotating cover positioning ring 302 presses the bottom box positioning ring 301 downward.

[0069] The rotating cover 2 has a closed state where it is rotated relative to the charging base box 1 to cover all the storage compartments 102, and an open state where it is rotated relative to the charging base box 1 to open all the storage compartments 102.

[0070] In this embodiment, the floating center-screw-cover headphone case and headphone assembly are provided. Under normal circumstances, the rotating cover 2 is in the closed state, and the bottom box positioning ring 301 and the rotating cover positioning ring 302 are engaged with each other to achieve relative positioning between the charging bottom box 1 and the rotating cover 2.

[0071] When the earphone body needs to be removed, rotate the rotating cover 2. The rotating cover 2 causes the rotating cover positioning ring 302 to rotate relative to the bottom box positioning ring 301. During the rotation of the rotating cover positioning ring 302, the cover ring positioning block 3021 gradually rotates and disengages from the bottom ring positioning groove 3011, thereby causing the rotating cover 2 to squeeze the compression spring 6 and move upward relative to the charging bottom box 1 (that is, during the rotation of the rotating cover positioning ring 302, both the rotating cover 2 and the rotating cover positioning ring 302 rotate and float upward at the same time).

[0072] Continue rotating the rotating cover 2. When the cover ring positioning block 3021 rotates to be opposite to the next bottom ring positioning groove 3011, under the elastic force of the compression spring 6, the cover ring positioning block 3021 will be inserted downward into the next bottom ring positioning groove 3011, and the bottom box positioning ring 301 and the rotating cover positioning ring 302 will return to the engaged state. At this time, the rotating cover 2 has been rotated to the open state, and since the cover ring positioning block 3021 is inserted into the next bottom ring positioning groove 3011, the relative positioning between the charging bottom box 1 and the rotating cover 2 is also achieved.

[0073] Furthermore, by rotating the rotating cover 2 again, the rotating cover 2 can be rotated to the closed position.

[0074] Therefore, the floating center-screw-cover headphone case and headphone assembly provided by the present invention can automatically position the rotating cover 2 after it rotates relative to the bottom box, so as to take out and put in the headphone body.

[0075] In this embodiment, the bottom surface of the bottom box positioning ring 301 is provided with a plurality of downwardly protruding bottom ring limiting blocks 3012, and the top surface of the charging bottom box 1 is provided with a bottom box limiting slot 103 for inserting the corresponding bottom ring limiting block 3012 at the position of each bottom ring limiting block 3012.

[0076] The top surface of the rotating cover positioning ring 302 is provided with an upwardly protruding cover ring limiting block 3022, and the bottom surface of the rotating cover 2 is provided with a rotating cover limiting slot 202 for inserting the corresponding cover ring limiting block 3022 at the position of each cover ring limiting block 3022.

[0077] Specifically, see Figure 5 After the bottom ring limiting block 3012 is inserted into the bottom box limiting slot 103, the bottom box positioning ring 301 and the charging bottom box 1 cannot rotate relative to each other; after the cover ring limiting block 3022 is inserted into the rotating cover limiting slot 202, the rotating cover positioning ring 302 and the rotating cover 2 cannot rotate relative to each other.

[0078] Optional, see Figure 6 A floating slip ring 7 is provided between the head of the rotating cover limiting member 4 and the compression spring 6. The floating slip ring 7 is sleeved on the outside of the rotating cover limiting member 4, and the floating slip ring 7 is rotatably and slidably connected to the rotating cover limiting member 4.

[0079] The floating slip ring 7 has a slip ring limiting block 701 on its circumferential surface that is inserted into the cavity wall of the rotating shaft cavity 201 to limit the relative rotation of the floating slip ring 7 and the rotating cover 2, and the floating slip ring 7 and the rotating cover 2 are slidably connected up and down.

[0080] The top surface of the floating slip ring 7 is provided with a plurality of slip ring sound-emitting blocks 702, and the head of the rotating cover limiting member 4 is provided with a slip ring sound-emitting slot 402 corresponding to the position of each slip ring sound-emitting block 702.

[0081] When the rotating cover 2 is rotated, the floating slip ring 7 rotates with the rotating cover 2 relative to the central axis 101 while sliding up and down relative to the rotating cover 2. This causes the slip ring sound-emitting blocks 702 to repeatedly disengage and re-engage in their respective slip ring sound-emitting slots 402. Due to the elastic force of the compression spring 6, the slip ring sound-emitting blocks 702 can engage in the slip ring sound-emitting slots 402 at a certain speed, thus producing a sound. That is, when the rotating cover 2 is rotated continuously, the floating slip ring 7 continuously disengages and engages in the head of the rotating cover limiting member 4, thus producing a clicking sound, thereby providing an audible prompt to the user.

[0082] Furthermore, one side of the slip ring sound-emitting block 702 is provided with a slip ring guide slope 7021 to guide the floating slip ring 7 to rotate forward relative to the rotating cover limiting member 4; the other side of the slip ring sound-emitting block 702 is provided with a slip ring thrust vertical surface 7022 to restrict the floating slip ring 7 from rotating in the opposite direction relative to the rotating cover limiting member 4. Therefore, the rotating cover 2 can only rotate in the forward direction relative to the charging base box 1, and cannot rotate in the reverse direction.

[0083] The floating center-screw-cap earphone case and earphone assembly provided in this embodiment have the following advantages:

[0084] ① When rotating the cover 2, the cover positioning ring 302 will repeatedly engage and disengage with the bottom box positioning ring 301. As long as it is rotated to the engaged state, the relative positioning between the charging bottom box 1 and the cover 2 can be achieved, so as to take out and put in the earphone body.

[0085] ② When rotating the cover 2, the main parts that rub against each other are the cover positioning ring 302 and the bottom box positioning ring 301. The cover 2 and the charging bottom box 1 will not be damaged due to friction, which helps to extend the service life of the cover 2 and the charging bottom box 1.

[0086] ③ Both the rotating cover positioning ring 302 and the bottom box positioning ring 301 are detachable. When they are excessively worn, they can be replaced simply by unscrewing the locking bolt 5. The operation is simple and easy to maintain.

[0087] ③ The return spring can make the rotating cover 2 continuously press the positioning protrusion ring assembly 3 downward, thereby avoiding the problem of the rotating cover 2 wobbling up and down and left and right due to assembly tolerance;

[0088] ④ The positioning ring assembly 3 is made of a material with good friction properties, which further extends its service life;

[0089] ⑤ When rotating the rotating cover 2, the floating slip ring 7 will make a clicking sound, thereby improving the feel and texture of the rotation;

[0090] ⑥ Positioning at different angles can be achieved by setting the number of teeth on the rotating cover positioning ring 302 and the bottom box positioning ring 301.

[0091] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0092] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A floating center-screw-cap headphone case, characterized in that, include: The charging base box (1) is provided with a vertically arranged central pivot (101) and a plurality of storage compartments (102) arranged around the central pivot (101). Rotating cover (2), the center position of the rotating cover (2) is rotatably connected to the central rotating shaft (101), and the center position of the rotating cover (2) is slidably connected to the central rotating shaft (101) up and down; The positioning protruding ring assembly (3) includes a bottom box positioning ring (301) installed on the top surface of the charging bottom box (1) and a rotating cover positioning ring (302) installed on the bottom of the rotating cover (2); wherein the bottom box positioning ring (301) and the rotating cover positioning ring (302) are both sleeved on the outside of the central rotating shaft (101) and are rotated and snapped together; Compression spring (6) is used to drive the rotating cover (2) to slide toward the charging base box (1), so that the rotating cover positioning ring (302) presses down on the base box positioning ring (301). in, The rotating cover (2) has a rotating shaft insertion cavity (201) at its center for inserting the central rotating shaft (101). The rotating shaft insertion cavity (201) contains: The rotating cover limiting member (4) has its head slidably connected to the rotating shaft cavity (201) and its bottom surface is plugged into the upper end of the central rotating shaft (101). Locking bolt (5), which passes through the rotating cover limiting member (4) and is threadedly connected to the central rotating shaft (101); The compression spring (6) is sleeved outside the rotating cover limiting member (4) and is located between the head of the rotating cover limiting member (4) and the bottom of the rotating shaft insertion cavity (201); A floating slip ring (7) is provided between the head of the rotating cover limiting member (4) and the compression spring (6). The floating slip ring (7) is sleeved on the outside of the rotating cover limiting member (4), and the floating slip ring (7) and the rotating cover limiting member (4) are rotatably and slidably connected. The floating slip ring (7) has a cavity wall that is inserted into the rotating shaft cavity (201) to limit the relative rotation of the floating slip ring (7) and the rotating cover (2), and the floating slip ring (7) and the rotating cover (2) are slidably connected up and down; The top surface of the floating slip ring (7) is provided with a plurality of slip ring sound-emitting blocks (702), and the head of the rotating cover limiting member (4) is provided with a slip ring sound-emitting slot (402) corresponding to the position of each slip ring sound-emitting block (702).

2. The floating center-screw-cap earphone case according to claim 1, characterized in that, The top surface of the central pivot (101) is provided with a pivot limiting slot (1011), and the pivot cover limiting member (4) is provided with a pivot cover limiting block (401) that is inserted from top to bottom into the pivot limiting slot (1011).

3. The floating center-screw-cap earphone case according to claim 1, characterized in that, The slip ring sound-emitting block (702) has a slip ring guide slope (7021) on one side to guide the floating slip ring (7) to rotate in the positive direction relative to the rotating cover limiter (4). The other side of the slip ring sound-emitting block (702) is provided with a slip ring thrust vertical surface (7022) that restricts the floating slip ring (7) from rotating in the opposite direction relative to the rotating cover limiter (4).

4. The floating center-screw-cap earphone case according to claim 1, characterized in that, The bottom surface of the bottom box positioning ring (301) is provided with a plurality of downward protruding bottom ring limiting blocks (3012), and the top surface of the charging bottom box (1) is provided with a bottom box limiting slot (103) for inserting the corresponding bottom ring limiting block (3012) at the position of each bottom ring limiting block (3012). The top surface of the rotating cover positioning ring (302) is provided with an upwardly protruding cover ring limiting block (3022), and the bottom surface of the rotating cover (2) is provided with a rotating cover limiting slot (202) for inserting the corresponding cover ring limiting block (3022) at the position of each cover ring limiting block (3022).

5. The floating center-screw-cap earphone case according to claim 1, characterized in that, The top surface of the bottom box positioning ring (301) is provided with several equally spaced bottom ring positioning grooves (3011). Each of the rotating cover positioning rings (302) is provided with a cover ring positioning block (3021) corresponding to the position of each of the bottom ring positioning grooves (3011).

6. An earphone assembly, characterized in that, It includes the floating center-screw-cap headphone case as described in any one of claims 1 to 5 and two headphone bodies housed in the floating center-screw-cap headphone case.

7. The headphone assembly according to claim 6, characterized in that, The floating center-screw-top earphone case also houses a Bluetooth adapter for wireless communication with the two earphone bodies.

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