A center-screw-top headphone case and headphone assembly
By using a central screw-on cap structure and a two-way sound component, the problem of easy breakage at the hinge of the earphone case is solved, achieving protection of the hinge and improving the user experience, and providing sound and visual cues.
Patent Information
- Application Number
- CN202310476704.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-27
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2043-04-27
AI Technical Summary
The hinge of the existing earphone case is prone to breakage, mainly because the hinge mechanism is located at the rear edge of the charging base and the flip cover, making the connection too fragile.
It adopts a central screw-on structure, with the charging base and rotating cover connected by a central pivot. The hinge is located in the center, and combined with a two-way sound component and a positioning boss and groove structure, it ensures that the hinge is well protected.
It effectively solves the problem of easy breakage at the hinge position, while also improving the user experience by making a sound when rotating in both directions, and providing visual cues through buttons and LED light panels.
Smart Images

Figure CN116489554B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of wireless earphone technology, and more particularly to a center-screw-top earphone case and earphone assembly. Background Technology
[0002] Existing headphone cases are generally flip-top structures, including a charging base, a hinge mechanism, and a flip cover hinged to the rear end of the charging base. When the flip cover is rotated upwards to its maximum opening angle, if a certain force is applied to the front end of the flip cover to push it upwards, the hinge between the charging base and the flip cover can easily break.
[0003] The main reason is that the hinge mechanism is located at the edge of the rear end of both the charging base and the flip cover. There are few structures to cover and protect the hinge mechanism, which makes the connection between the charging base and the flip cover and the hinge mechanism too weak, and it will break with the slightest force.
[0004] Therefore, the existing headphone case needs to be improved to solve the problem of its hinge joint being prone to breakage.
[0005] 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
[0006] One objective of this invention is to provide a center-screw-top headphone case and headphone assembly that can effectively solve the problem of easy breakage at the hinge position of existing headphone cases.
[0007] To achieve the above objectives, in one aspect, the present invention provides a center-screw-top earphone case, comprising:
[0008] 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;
[0009] A rotating cover, the center of which is rotatably connected to the charging base box via a central pivot.
[0010] The rotating cover has a closed state where it is rotated relative to the charging base box to cover all the storage compartments, and an open state where it is rotated relative to the charging base box to open all the storage compartments.
[0011] Optionally, the charging base box is rotatably connected to the rotating cover via a two-way sound assembly;
[0012] The bidirectional acoustic component is configured as follows:
[0013] The rotating cover will make a sound when it rotates forward or backward relative to the charging base box.
[0014] Optionally, the two-way acoustic component includes:
[0015] A bottom box follower is connected to the central rotating shaft for synchronous rotation.
[0016] A cap follower is connected to the rotating cap for synchronous rotation.
[0017] A bidirectional rotating component, wherein the bidirectional rotating component is located between the bottom box follower and the screw cap follower;
[0018] The bidirectional rotating member has a forward rotation state in which it rotates synchronously with the bottom box follower and rotates relative to the screw cap follower to produce a first sound; and a reverse rotation state in which it rotates synchronously with the screw cap follower and rotates relative to the bottom box follower to produce a second sound.
[0019] Optionally, the bottom box follower includes a sleeve portion sleeved on the central rotating shaft and a toothed portion located above the sleeve portion. The bottom edge of the toothed portion is provided with a plurality of bottom box follower teeth. The bottom box follower teeth include a bottom box follower inclined guide surface and a bottom box follower vertical thrust surface.
[0020] The cap follower is sleeved on the sleeve portion and located below the toothed portion; the top surface of the rotating cap is provided with a plurality of cap follower teeth; wherein, the cap follower teeth include a cap follower inclined guide surface and a cap follower vertical thrust surface.
[0021] The top of the bidirectional rotating component is provided with a bidirectional upper protrusion that matches the follower protrusion of the bottom box, and the bottom surface of the bidirectional rotating component is provided with a bidirectional lower protrusion that matches the follower protrusion of the screw cap.
[0022] The tilting directions of the bottom box follow-up tilting guide surface and the screw cap follow-up tilting guide surface are opposite.
[0023] Optionally, the cap follower is slidably connected to the rotating cap along the axial direction of the central rotating shaft;
[0024] The bidirectional sound assembly also includes a sound-generating spring sleeved on the sleeve portion and located below the cap follower.
[0025] Optionally, the top of the charging base box is provided with a plurality of positioning protrusions arranged around the central pivot, and the bottom of the rotating cover is provided with a plurality of positioning grooves for each of the positioning protrusions to engage.
[0026] Optionally, the bottom of the rotating cover is also provided with a number of button bosses arranged around the central pivot.
[0027] The charging base box has a longitudinal groove corresponding to the position of the button protrusion. A button push rod is slidably installed in the longitudinal groove. A push rod spring is sleeved on the button push rod to drive the button push rod to slide upward and protrude from the charging base box. An electronic button is provided below the button push rod.
[0028] Optionally, the electronic button is electrically connected to an LED light panel and / or an audio prompter.
[0029] Optionally, the number of storage compartments is three, two of which are earphone storage compartments and the third is a Bluetooth adapter storage compartment;
[0030] Each of the rotating covers has a cover plate corresponding to each of the storage compartments.
[0031] On the other hand, an earphone assembly is provided, including two earphone bodies and a centrally screw-on earphone case.
[0032] The beneficial effects of the present invention are as follows: It provides a center-screw-top earphone case and earphone assembly, using a screw-top structure instead of the existing flip-top structure. The hinge position of the charging base and the rotating cover is located in the center, and the hinge structure can be well covered and protected, thus effectively solving the problem that the hinge position of the existing earphone case is prone to breakage. Attached Figure Description
[0033] 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.
[0034] Figure 1 A schematic diagram of the central screw-top earphone case in the closed state provided in the embodiment;
[0035] Figure 2 A schematic diagram of the center-screw-top earphone case in the open state provided in the embodiment;
[0036] Figure 3 An assembly diagram of the two-way sound component provided in this embodiment;
[0037] Figure 4 An exploded view of the center-screw-top headphone case provided in the embodiment;
[0038] Figure 5An exploded view of the two-way acoustic assembly provided in this embodiment;
[0039] Figure 6 A bottom schematic diagram of the bottom box follower provided in the embodiment;
[0040] Figure 7 A schematic diagram of the bottom of the rotating cover provided in the embodiment;
[0041] Figure 8 A top view of the charging base box provided in the embodiment;
[0042] Figure 9 This is a cross-sectional view of a center-screw-top headphone case provided for an embodiment.
[0043] In the picture:
[0044] 1. Charging base box; 101. Central hinge; 1011. Hinge slot; 102. Earphone storage compartment; 103. Bluetooth adapter storage compartment; 104. Positioning boss; 105. Vertical slide groove; 106. Button push rod; 107. Push rod spring; 108. Electronic button; 109. LED light panel;
[0045] 2. Rotating cover; 201. Cover plate; 202. Center groove; 203. Rotating cover slot; 204. Positioning groove; 205. Button boss;
[0046] 3. Two-way sound system;
[0047] 301, Base box follower; 3011, Sleeve section; 3011a, Sleeve insert block; 3012, Protruding tooth section; 3012a, Base box follower protruding tooth; 3012b, Base box follower tilting guide surface; 3012c, Base box follower vertical thrust surface;
[0048] 302. Cap follower; 3021. Cap follower tooth; 3021a. Cap follower tilt guide surface; 3021b. Cap follower vertical thrust surface; 3022. Cap insert block;
[0049] 303. Bidirectional rotating component; 3031. Upper convex tooth of bidirectional component; 3032. Lower convex tooth of bidirectional component;
[0050] 304. Sound-producing spring;
[0051] 4. Tighten the bolts. Detailed Implementation
[0052] 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.
[0053] 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.
[0054] 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.
[0055] 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.
[0056] This invention provides a center-screw-top earphone case and earphone assembly, suitable for applications such as wireless earphones for mobile phones and / or wireless earphones for computers. By improving the flip-top structure to a screw-top structure, it effectively solves the problem of easy breakage at the hinge position of existing earphone cases.
[0057] In this embodiment, the headphone assembly includes two headphone bodies, a Bluetooth adapter, and a center-screw-top headphone case.
[0058] Specifically, see Figure 1 and Figure 2 The center-screw-top earphone case includes a charging base 1 and a rotating cover 2.
[0059] The charging base box 1 has a vertically arranged central pivot 101 and several storage compartments arranged around the central pivot 101. In this embodiment, there are three storage compartments, two of which are earphone storage compartments 102, and the third is a Bluetooth adapter storage compartment 103. When it is necessary to connect to a mobile phone or a laptop with Bluetooth function, no Bluetooth adapter is required. When it is necessary to connect to a desktop computer without Bluetooth function, the Bluetooth adapter must be inserted into the desktop computer first, and then the earphone body and the Bluetooth adapter are connected.
[0060] In some other embodiments, the number of storage compartments is two, both of which are headphone storage compartments 102, or one is a headphone storage compartment 102 and the other is a Bluetooth adapter storage compartment 103.
[0061] The center of the rotating cover 2 is rotatably connected to the charging base box 1 via the central rotating shaft 101; and the rotating cover 2 is provided with a cover plate 201 for each of the storage compartments.
[0062] 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 (e.g., ...). Figure 1 As shown), and having an open state where all the storage compartments are opened by rotating relative to the charging base 1 (as shown). Figure 2 (As shown).
[0063] The center-screw-top earphone case provided in this embodiment uses a screw-top structure instead of the existing flip-top structure. The hinge position of the charging base 1 and the rotating cover 2 is located in the center, and the hinge structure can be well covered and protected, thus effectively solving the problem that the hinge position of the existing earphone case is prone to breakage.
[0064] Optionally, the charging base box 1 is configured as follows: Figure 3 The bidirectional sound component 3 shown is rotatably connected to the rotating cover 2; wherein, the bidirectional sound component 3 is configured such that the rotating cover 2 will emit a sound when it rotates in the forward or reverse direction relative to the charging base box 1.
[0065] See Figures 4-7 In this embodiment, the bidirectional sound assembly 3 includes a base box follower 301, a screw cap follower 302, and a bidirectional rotating component 303. The base box follower 301 is synchronously rotatably connected to the central rotating shaft 101; the screw cap follower 302 is synchronously rotatably connected to the rotating cover 2; and the bidirectional rotating component 303 is located between the base box follower 301 and the screw cap follower 302.
[0066] The bidirectional rotating member 303 has a forward rotation state in which it rotates synchronously with the bottom box follower 301 and rotates relative to the screw cap follower 302 to produce a first sound; and a reverse rotation state in which it rotates synchronously with the screw cap follower 302 and rotates relative to the bottom box follower 301 to produce a second sound.
[0067] Specifically, the bottom box follower 301 includes a sleeve portion 3011 sleeved on the central rotating shaft 101 and a toothed portion 3012 located above the sleeve portion 3011. The bottom edge of the toothed portion 3012 is provided with a plurality of bottom box follower teeth 3012a. The bottom box follower teeth 3012a include a bottom box follower inclined guide surface 3012b and a bottom box follower vertical thrust surface 3012c.
[0068] The cap follower 302 is sleeved on the sleeve portion 3011 and located below the toothed portion 3012; the top surface of the rotating cap 2 is provided with a plurality of cap follower teeth 3021; wherein, the cap follower teeth 3021 include a cap follower inclined guide surface 3021a and a cap follower vertical thrust surface 3021b;
[0069] The top of the bidirectional rotating component 303 is provided with a bidirectional upper protrusion 3031 that is adapted to the bottom box follower protrusion 3012a, and the bottom surface of the bidirectional rotating component 303 is provided with a bidirectional lower protrusion 3032 that is adapted to the screw cap follower protrusion 3021.
[0070] The tilting directions of the bottom box follow-up tilting guide surface 3012b and the screw cap follow-up tilting guide surface 3021a are opposite.
[0071] Furthermore, the cap follower 302 is slidably connected to the rotating cap 2 along the axial direction of the central rotating shaft 101; the bidirectional sound assembly 3 also includes a sound-generating spring 304 sleeved on the sleeve portion 3011 and located below the cap follower 302.
[0072] Specifically, the toothed portion 3012 is provided with a plurality of bottom box follower teeth 3012a. To avoid confusion, taking the bottom box follower tilting guide surface 3012b and the bottom box follower vertical thrust surface 3012c, which belong to the same bottom box follower tooth 3012a, as examples, the bottom box follower tilting guide surface 3012b is inclined downward toward the bottom box follower vertical thrust surface 3012c.
[0073] Similarly, taking the cap following tilt guide surface 3021a and the cap following vertical thrust surface 3021b, which belong to the same cap following protrusion 3021, as examples, the cap following tilt guide surface 3021a is inclined upward in the direction close to the cap following vertical thrust surface 3021b.
[0074] Optionally, the upper part of the circumferential surface of the central rotating shaft 101 is provided with a rotating shaft slot 1011, and the inner wall of the sleeve portion 3011 is provided with a sleeve insert 3011a that is inserted into the rotating shaft slot 1011 from top to bottom. When the sleeve portion 3011 is sleeved on the outside of the central rotating shaft 101, the sleeve insert 3011a is just inserted into the rotating shaft slot 1011, thereby enabling the central rotating shaft 101 and the bottom box follower 301 to rotate synchronously.
[0075] Furthermore, the bottom box follower 301 is fastened to the central rotating shaft 101 using fastening bolts 4.
[0076] The rotating cover 2 has a central groove 202 at its center to accommodate the bidirectional sound component 3. The groove wall of the central groove 202 has a cap slot 203. The circumferential surface of the cap follower 302 has a cap insert 3022 that inserts into the cap slot 203. The cap insert 3022 is inserted into the cap slot 203 from top to bottom, thereby enabling the rotating cover 2 and the cap follower 302 to rotate synchronously. The cap follower 302 can also slide up and down relative to the rotating cover 2 along the cap slot 203. Therefore, the sound-generating spring 304 can press the cap follower 302 and the bidirectional rotating component 303 upwards, so that the cap follower 302, the bidirectional rotating component 303, and the toothed part 3012 fit together tightly.
[0077] Specifically, when holding the charging base 1 with the left hand and rotating the cover 2 clockwise with the right hand, the process is as follows:
[0078] S101: Since the bottom box follower 301 is locked to the central rotating shaft 101 by the fastening bolt 4, the bottom box follower 301 will not rotate;
[0079] S102: Due to the limiting effect of the cap insert 3022, the cap follower 302 will rotate forward together with the cap 2;
[0080] S103: During the rotation of the cap follower 302, due to the frictional force between the cap follower 302 and the bidirectional rotating member 303, the bidirectional rotating member 303 tends to rotate in the positive direction together with the cap follower 302.
[0081] However, the bidirectional rotating member 303's upper protruding tooth 3031 is resisted by the vertical thrust surface 3012c of the bottom box, and cannot rotate in the forward direction. Therefore, at this time, the bidirectional rotating member 303 and the bottom box follower 301 remain relatively stationary.
[0082] S104: Since the bidirectional rotating member 303 does not rotate, the cap follower 302, guided by the cap follower inclined guide surface 3021a, will press down on the sound-generating spring 304 and gradually move away from the bidirectional rotating member 303. When the cap follower 302 rotates to just be able to perfectly engage with the bidirectional rotating member 303, the sound-generating spring 304 drives the cap follower 302 to move upward to engage with the bidirectional rotating member 303. At this time, the cap follower 302 strikes the bidirectional rotating member 303 upward, and the first sound will be emitted.
[0083] Conversely, when holding the charging base 1 with the left hand and rotating the cover 2 in the opposite direction with the right hand, the process is as follows:
[0084] S201: Since the bottom box follower 301 is locked to the central rotating shaft 101 by the fastening bolt 4, the bottom box follower 301 will not rotate;
[0085] S202: Due to the limiting effect of the cap insert 3022, the cap follower 302 will rotate forward together with the rotating cap 2;
[0086] S203: During the rotation of the cap follower 302, due to the thrust action of the cap follower vertical thrust surface 3021b, the bidirectional rotating member 303 must rotate in the opposite direction together with the cap follower 302.
[0087] At this time, the bidirectional rotating component 303 and the cap follower component 302 remain relatively stationary;
[0088] S204: During the rotation of the bidirectional rotating member 303, the bottom box follower 301 will not rotate. Therefore, under the guidance of the bottom box follower inclined guide surface 3012b, the bidirectional rotating member 303 will press down on the sound-emitting spring 304 and gradually move away from the bottom box follower 301. When the bidirectional rotating member 303 rotates to the point where it can perfectly mesh with the bottom box follower 301, the sound-emitting spring 304 drives the bidirectional rotating member 303 to move upward to mesh with the bottom box follower 301. At this time, the bidirectional rotating member 303 strikes the bottom box follower 301 upward and will make a second sound.
[0089] In this embodiment, see Figure 8 The top of the charging base box 1 is provided with several positioning bosses 104 arranged around the central pivot 101; see also Figure 7 The bottom of the rotating cover 2 is provided with several positioning grooves 204 for each of the positioning protrusions 104 to engage. The positioning protrusions 104 engage with different positioning grooves 204 to achieve angular positioning between the rotating cover 2 and the charging base box 1.
[0090] See Figure 9The bottom of the rotating cover 2 is also provided with a number of button protrusions 205 arranged around the central rotating shaft 101;
[0091] The charging base box 1 has a longitudinal groove 105 corresponding to the position of the button protrusion 205. A button push rod 106 is slidably installed in the longitudinal groove 105. A push rod spring 107 is sleeved on the button push rod 106 to drive it to slide upward and protrude from the charging base box 1. An electronic button 108 is provided below the button push rod 106. The electronic button 108 is electrically connected to an LED light panel 109 and / or an audio prompter.
[0092] When the rotating cover 2 is in the closed state, the button protrusion 205 at the bottom of the rotating cover 2 is located next to the button push rod 106, and the button push rod 106 is not pressed, nor is the electronic button 108. When the rotating cover 2 is rotated to the open state, the button protrusion 205 at the bottom of the rotating cover 2 rotates synchronously to be directly above the button push rod 106 and presses down on the button push rod 106, causing the button push rod 106 to press down on the electronic button 108, thereby triggering the LED light panel 109 to light up and / or the sound indicator to emit a prompt sound, reminding the user that the rotating cover 2 has been opened. After removing the earphone body, rotating the rotating cover 2 to close it causes the button protrusion 205 to move away from the button push rod 106, and the spring push rod can then be reset under the action of the push rod spring 107, thereby causing the electronic button 108 to reset.
[0093] The center-screw-top earphone case and earphone assembly provided in this embodiment have the following advantages:
[0094] ① The hinge of the charging base 1 and the rotating cover 2 is located in the center, and the hinge structure can be well covered and protected, thus effectively solving the problem that the hinge of the existing headphone case is prone to breakage.
[0095] ② Rotating the cover 2 in either the forward or reverse direction will produce a clicking sound and also improve the damping feel during rotation;
[0096] ③ When rotating the cover 2, the button push rod 106 will be triggered to press the electronic button 108, so as to generate light and / or prompt sound, which will have a cool visual effect and reminder function;
[0097] ④ The positioning boss 104 and the positioning groove 204 are set to cooperate to achieve precise positioning during rotation, prevent shaking, and ensure the stability of the product.
[0098] 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.
[0099] 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 center-screw-top earphone 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 arranged around the central pivot (101); A rotating cover (2) is rotatably connected to the charging base box (1) via the central rotating shaft (101); The rotating cover (2) has a closed state that rotates relative to the charging base box (1) to cover all the storage compartments, and an open state that rotates relative to the charging base box (1) to open all the storage compartments. The bottom of the rotating cover (2) is also provided with a number of button bosses (205) arranged around the central rotating shaft (101). The charging base box (1) is provided with a longitudinal groove (105) corresponding to the position of the button boss (205). A button push rod (106) is slidably installed in the longitudinal groove (105). A push rod spring (107) is sleeved on the button push rod (106) to drive the button push rod (106) to slide upward and protrude from the charging base box (1). An electronic button (108) is provided below the button push rod (106). The electronic button (108) is electrically connected to an LED light panel (109) and / or an audio prompter.
2. The center-screw-top earphone case according to claim 1, characterized in that, The charging base box (1) is rotatably connected to the rotating cover (2) via a two-way sound assembly (3); The bidirectional acoustic component (3) is configured as follows: The rotating cover (2) will make a sound when it rotates in the forward or reverse direction relative to the charging base box (1).
3. The center-screw-top earphone case according to claim 2, characterized in that, The bidirectional acoustic component (3) includes: The bottom box follower (301) is synchronously connected to the central rotating shaft (101); A cap follower (302) is connected to the rotating cap (2) for synchronous rotation. A bidirectional rotating component (303) is located between the bottom box follower (301) and the screw cap follower (302); The bidirectional rotating member (303) has a forward rotation state in which it rotates synchronously with the bottom box follower (301) and rotates relative to the screw cap follower (302) to produce a first sound; and a reverse rotation state in which it rotates synchronously with the screw cap follower (302) and rotates relative to the bottom box follower (301) to produce a second sound.
4. The center-screw-top earphone case according to claim 3, characterized in that, The bottom box follower (301) includes a sleeve portion (3011) sleeved on the central rotating shaft (101) and a toothed portion (3012) located above the sleeve portion (3011). The bottom edge of the toothed portion (3012) is provided with a plurality of bottom box follower teeth (3012a). The bottom box follower teeth (3012a) include a bottom box follower inclined guide surface (3012b) and a bottom box follower vertical thrust surface (3012c). The cap follower (302) is sleeved on the sleeve portion (3011) and located below the toothed portion (3012); the top surface of the rotating cap (2) is provided with a plurality of cap follower teeth (3021); wherein, the cap follower teeth (3021) include a cap follower inclined guide surface (3021a) and a cap follower vertical thrust surface (3021b). The top of the bidirectional rotating component (303) is provided with a bidirectional upper protrusion (3031) that is adapted to the bottom box follower protrusion (3012a), and the bottom surface of the bidirectional rotating component (303) is provided with a bidirectional lower protrusion (3032) that is adapted to the screw cap follower protrusion (3021). The tilting directions of the bottom box follow-up tilting guide surface (3012b) and the screw cap follow-up tilting guide surface (3021a) are opposite.
5. The center-screw-top earphone case according to claim 4, characterized in that, The cap follower (302) is slidably connected to the rotating cap (2) along the axial direction of the central rotating shaft (101); The bidirectional sound assembly (3) also includes a sound-generating spring (304) sleeved on the sleeve portion (3011) and located below the cap follower (302).
6. The center-screw-top earphone case according to claim 1, characterized in that, The top of the charging base box (1) is provided with a number of positioning bosses (104) arranged around the central pivot (101), and the bottom of the rotating cover (2) is provided with a number of positioning grooves (204) for each of the positioning bosses (104) to be inserted.
7. The center-screw-top earphone case according to claim 1, characterized in that, The number of storage compartments is three, two of which are earphone storage compartments (102) and the third is Bluetooth adapter storage compartment (103). The rotating cover (2) is provided with a cover plate (201) for each of the storage compartments.
8. An earphone assembly, characterized in that, It includes two earphone bodies and a center-screw-top earphone case as described in any one of claims 1 to 7.
Citation Information
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