Uncovering limiting structure and wireless Bluetooth earphone

Abstract

The utility model relates to the technical field of Bluetooth earphones, in particular to an uncovering limiting structure and a wireless Bluetooth earphone. The uncovering limiting structure comprises a box body and a cover body, the box body is provided with a mounting part, the mounting part is provided with a first side wall and a second side wall which are adjacently arranged, the first side wall is provided with a first limiting groove, the second side wall is provided with a second limiting groove, the cover body is provided with a rotating part, and the rotating part is connected into the mounting part. The rotating part is provided with a third side wall and a fourth side wall which are adjacent to each other, the third side wall is convexly provided with a first limiting part, the fourth side wall is convexly provided with a second limiting part, and the rotating part can rotate in the mounting part, so that the box body and the cover body have a first position and a second position; the first limiting part abuts against the interior of the first limiting groove, and the second limiting part abuts against the interior of the second limiting groove. The wireless Bluetooth earphone comprises the uncovering limiting structure. According to the utility model, the reliability of the cover body during uncovering can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of Bluetooth headsets, and particularly relates to an opening limit structure and a wireless Bluetooth headset. Background Art

[0002] With the mature development of wireless Bluetooth technology, the wireless technology of current in-ear headset products has also developed rapidly. Since wireless Bluetooth headsets have no external data cable, they need to be powered by their own batteries, so they need to be charged frequently. Currently, the common charging case of wireless Bluetooth headsets is different from the traditional plug-in charging structure. Due to its small size, contact charging is generally used. That is, two charging electrode points are set on the wireless Bluetooth headset. The charging case is usually a box structure, and a charging cavity corresponding to the shape of the wireless Bluetooth headset is formed on the charging case, and two elastic electrode columns for charging are arranged in the charging cavity. When the wireless Bluetooth headset is placed in the charging cavity of the charging case, the charging electrode points are in contact with the elastic electrode columns, and the two form an electrical connection, thus starting to charge.

[0003] Currently, most charging cases of wireless Bluetooth headsets adopt a box design. And to ensure that the headset does not fall off, a cover needs to be set on the box. When the headset needs to be taken out, the cover is opened and the headset is pulled out of the box; when the headset needs to be put back for charging, the headset is put into the box and the cover is closed. However, due to the structural space limitation of the charging case, the strength of the charging case at the opening position of the cover is insufficient, resulting in the inability to ensure the reliability of the cover when it is opened. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose an opening limit structure and a wireless Bluetooth headset, aiming to solve the technical problem that the strength of the current charging case at the opening position of the cover is insufficient and the reliability of the cover when it is opened cannot be ensured.

[0005] To achieve the above purpose, the utility model proposes an opening limit structure for a wireless Bluetooth headset, and the opening limit structure includes:

[0006] A box body, the box body is provided with an installation part, the installation part has a first side wall and a second side wall arranged adjacent to each other, the first side wall is provided with a first limiting groove, and the second side wall is provided with a second limiting groove;

[0007] A cover body, the cover body is provided with a rotating part, the rotating part and the installation part are correspondingly arranged, and the rotating part is connected inside the installation part. The rotating part has a third side wall and a fourth side wall arranged adjacent to each other, a first limiting part protrudes from the third side wall, and a second limiting part protrudes from the fourth side wall;

[0008] Wherein, the rotating part is configured to be rotatable within the mounting part, so that there are a first position and a second position between the box body and the cover body. When the box body and the cover body are in the first position, the first limiting part abuts against the first limiting groove, and the second limiting part abuts against the second limiting groove, so as to realize the positioning of the box body and the cover body at the first position.

[0009] In some embodiments, the first limiting groove extends linearly from one end of the mounting part to the opposite end of the mounting part, and the first limiting part extends linearly from one end of the rotating part to the opposite end of the rotating part;

[0010] Wherein, the first limiting groove is arranged on one side close to the first position.

[0011] In some embodiments, the first limiting groove is an arc-shaped groove.

[0012] In some embodiments, the second limiting groove is a sector-shaped groove, and the radian of the second limiting groove is π, the second limiting part is a sector-shaped convex block, and the radian of the second limiting part is π / 2;

[0013] Wherein, the second limiting part can rotate 90° within the second limiting groove.

[0014] In some embodiments, the mounting part has a fifth side wall, the fifth side wall is arranged opposite to the second side wall, and the third limiting groove is arranged on the fifth side wall;

[0015] The rotating part has a sixth side wall, the sixth side wall is arranged opposite to the fourth side wall, and the third limiting part protrudes from the sixth side wall;

[0016] Wherein, when the box body and the cover body are in the first position, the third limiting part abuts against the third limiting groove.

[0017] In some embodiments, the mounting part is provided with a rotating shaft, the rotating part is provided with a connecting hole, and the rotating shaft is configured to be connected in the connecting hole, so as to realize the rotation of the cover body relative to the box body between the first position and the second position.

[0018] In some embodiments, the rotating part is configured to be rotatable 90° within the mounting part, so that the cover body can rotate 90° relative to the box body between the first position and the second position.

[0019] In some embodiments, the first limiting part, the second limiting part and the rotating part are all structures made of plastic.

[0020] In some embodiments, the first limiting portion, the second limiting portion and the rotating portion are integrally formed structures.

[0021] Correspondingly, the present utility model further provides a wireless Bluetooth headset, which includes the opening limiting structure described in any of the above embodiments.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] In the technical solution of the present utility model, the structure of the cover of the charging case at the open position is improved, and an opening limiting structure capable of effectively realizing the limiting support of the cover at the open position is provided. The opening limiting structure includes a correspondingly arranged first limiting portion and a first limiting groove, and a correspondingly arranged second limiting portion and a second limiting groove. When the cover rotates from the second position to the first position, as the rotating portion rotates forward in the mounting portion, the first limiting portion will gradually move towards the direction close to the first limiting groove. At the same time, the second limiting portion will gradually move towards the direction close to the second limiting groove. When the cover is in the first position relative to the box body, that is, when the cover is in the open position relative to the box body, the first limiting portion will abut in the first limiting groove, so that a positioning fit is formed between the first limiting portion and the first limiting groove. The second limiting portion will abut in the second limiting groove, so that a positioning fit is formed between the second limiting portion and the second limiting groove, thereby realizing the double limiting of the cover and preventing the cover from continuing to rotate in the direction from the second position to the first position, ensuring the positioning stability of the cover in the first position. At this time, since the cover is in the open state, the user can take out the earphone from the charging case. When the cover rotates from the first position to the second position, as the rotating portion rotates reversely in the mounting portion, the first limiting portion will gradually move away from the first limiting groove, so that the first limiting portion gradually disengages from the first limiting groove. At the same time, the second limiting portion will gradually move away from the second limiting groove, so that the second limiting portion gradually disengages from the second limiting groove. When the cover is in the second position relative to the box body, that is, when the cover is in the closed position relative to the box body, at this time, since the cover is in the closed state, the earphone can be enclosed in the charging case to prevent the earphone from jumping out of the charging case.

[0024] The wireless Bluetooth headset applying the above opening limiting structure can improve the structural strength of the charging case at the open position of the cover and ensure the reliability of the cover when it is opened. Description of the Drawings

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0026] Figure 1 Schematic diagram of the opening limiting structure provided by an embodiment of the present invention in the second position;

[0027] Figure 2 Schematic diagram of the opening limiting structure provided by an embodiment of the present invention in the first position;

[0028] Figure 3 Exploded view of the opening limiting structure provided by an embodiment of the present invention in the second position from the first perspective;

[0029] Figure 4 For Figure 3 Partial enlarged view of the location A in

[0030] Figure 5 Exploded view of the opening limiting structure provided by an embodiment of the present invention in the second position from the second perspective;

[0031] Figure 6 Cross-sectional view of the opening limiting structure provided by an embodiment of the present invention in the second position;

[0032] Figure 7 Cross-sectional view of the opening limiting structure provided by an embodiment of the present invention in the first position;

[0033] Figure 8 Exploded cross-sectional view of the opening limiting structure provided by an embodiment of the present invention in the second position from the third perspective.

[0034] Explanation of the reference numerals in the drawings:

[0035] 100 - box body;

[0036] 110 - installation part;

[0037] 111 - first side wall; 112 - second side wall; 113 - fifth side wall; 114 - rotating shaft;

[0038] 1111 - first limiting groove; 1121 - second limiting groove; 1131 - third limiting groove;

[0039] 200 - cover body;

[0040] 210 - rotating part;

[0041] 211 - Third side wall; 212 - Fourth side wall; 213 - Sixth side wall; 214 - Connecting hole;

[0042] 2111 - First limiting part; 2121 - Second limiting part; 2131 - Third limiting part;

[0043] 21211 - First abutting wall; 21212 - Second abutting wall;

[0044] 300 - First position;

[0045] 400 - Second position.

[0046] The realization, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0048] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0049] In addition, if there are descriptions such as "first" and "second" in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or", "and / or" or "and / or" appear throughout the text, their meanings include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0050] With the mature development of wireless Bluetooth technology, the wireless technology of current in-ear headphone products has also developed rapidly. Since wireless Bluetooth earphones have no external data cable, they need to be powered by their own batteries, so they need to be charged frequently. The current common charging case for wireless Bluetooth earphones is different from the traditional plug-in charging structure. Due to its small size, contact charging is generally used. That is, two charging electrode points are set on the wireless Bluetooth earphone. The charging case is usually a box structure, and a charging cavity corresponding to the shape of the wireless Bluetooth earphone is formed on the charging case, and two elastic electrode posts for charging are arranged in the charging cavity. When the wireless Bluetooth earphone is placed in the charging cavity of the charging case, the charging electrode points are in contact with the elastic electrode posts, and the two form an electrical connection, thus starting to charge.

[0051] The current charging cases for wireless Bluetooth earphones mostly adopt a box design. In order to ensure that the earphones will not fall off, a cover needs to be set on the box. When the earphones need to be taken out, just open the cover and pull the earphones out of the box; when the earphones need to be put back for charging, put the earphones into the box and close the cover. However, due to the structural space limitation of the charging case, the strength at the open position of the cover of the charging case is insufficient, resulting in the inability to ensure the reliability of the cover when it is opened.

[0052] In order to solve the technical problem that the strength at the open position of the cover 200 of the current charging case is insufficient and the reliability of the cover 200 when it is opened cannot be ensured, referring to Figures 1 to 8 One embodiment of the present utility model provides an opening limit structure, which can be applied to wireless Bluetooth earphones. The opening limit structure includes a box body 100 and a cover body 200. The box body 100 is provided with an installation part 110. The installation part 110 has a first side wall 111 and a second side wall 112 arranged adjacent to each other. The first side wall 111 is provided with a first limit groove 1111, and the second side wall 112 is provided with a second limit groove 1121. The cover body 200 is provided with a rotating part 210. The rotating part 210 and the installation part 110 are correspondingly arranged, and the rotating part 210 is connected in the installation part 110. The rotating part 210 has a third side wall 211 and a fourth side wall 212 arranged adjacent to each other. The third side wall 211 protrudes with a first limit part 2111, and the fourth side wall 212 protrudes with a second limit part 2121. Among them, the rotating part 210 is configured to be able to rotate in the installation part 110 so that there is a first position 300 and a second position 400 between the box body 100 and the cover body 200. When the box body 100 and the cover body 200 are in the first position 300, the first limit part 2111 abuts against the first limit groove 1111, and the second limit part 2121 abuts against the second limit groove 1121 to realize the positioning of the box body 100 and the cover body 200 at the first position 300. It can be understood that the first position 300 is the open position of the cover body 200, and the second position 400 is the closed position of the cover body 200.

[0053] Specifically, to solve the above problems, in this embodiment, the structure of the cover body 200 of the charging bin at the open cover position is improved, and an open cover limiting structure capable of effectively realizing the limiting support of the cover body 200 at the open cover position is provided. This open cover limiting structure includes a correspondingly arranged first limiting portion 2111 and a first limiting groove 1111, and a correspondingly arranged second limiting portion 2121 and a second limiting groove 1121. When the cover body 200 rotates from the second position 400 towards the first position 300, as the rotating portion 210 rotates forward within the mounting portion 110, the first limiting portion 2111 will gradually move towards the direction close to the first limiting groove 1111. At the same time, the second limiting portion 2121 will gradually move towards the direction close to the second limiting groove 1121. When the cover body 200 is in the first position 300 relative to the box body 100, that is, when the cover body 200 is in the open cover position relative to the box body 100, the first limiting portion 2111 will abut within the first limiting groove 1111, so that a positioning fit is formed between the first limiting portion 2111 and the first limiting groove 1111. The second limiting portion 2121 will abut within the second limiting groove 1121, so that a positioning fit is formed between the second limiting portion 2121 and the second limiting groove 1121, thereby realizing the double limiting of the cover body 200, making the cover body 200 unable to continue rotating in the direction from the second position 400 to the first position 300, and ensuring the positioning stability of the cover body 200 in the first position 300. At this time, since the cover body 200 is in the open cover state, the user can pull out the earphone from the charging bin. When the cover body 200 rotates from the first position 300 towards the second position 400, as the rotating portion 210 rotates reversely within the mounting portion 110, the first limiting portion 2111 will gradually move towards the direction away from the first limiting groove 1111, causing the first limiting portion 2111 to gradually disengage from the first limiting groove 1111. At the same time, the second limiting portion 2121 will gradually move towards the direction away from the second limiting groove 1121, causing the second limiting portion 2121 to gradually disengage from the second limiting groove 1121. When the cover body 200 is in the second position 400 relative to the box body 100, that is, when the cover body 200 is in the closed cover position relative to the box body 100, at this time, since the cover body 200 is in the closed cover state, the earphone can be enclosed in the charging bin to prevent the earphone from jumping out of the charging bin.

[0054] Further, in some embodiments, the angle range of the cover 200 between the first position 300 and the second position 400 can satisfy [0°, 90°], that is, the angle between the cover 200 and the box body 100 in the first position 300 (open position) can be 90 degrees, and the angle between the cover 200 and the box body 100 in the second position 400 (closed position) can be 0 degrees. Setting the angle of rotation of the cover 200 between the first position 300 and the second position 400 within the above range does not affect taking the earphone out of the charging compartment on the one hand, and prevents the cover 200 from opening at too large an angle, which may cause an unstable connection between the cover 200 and the box body 100 on the other hand.

[0055] In some embodiments, reference Figure 3 and Figure 5 The first limiting groove 1111 extends from one end of the mounting portion 110 to the other end of the mounting portion 110 along a straight line, and the first limiting portion 2111 extends from one end of the rotating portion 210 to the other end of the rotating portion 210 along a straight line. The first limiting groove 1111 is disposed on a side close to the first position 300.

[0056] Specifically, in this embodiment, the first limiting portion 2111 can be set on the bottom wall of the rotating portion 210, so that the first limiting portion 2111 can play a major limiting role. The first limiting groove 1111 is extended horizontally to the mounting portion 110, and the first limiting portion 2111 is extended horizontally to the rotating portion 210, which is conducive to extending the length of the first limiting groove 1111 and the first limiting portion 2111, thereby facilitating the increase of the contact area between the first limiting portion 2111 and the first limiting groove 1111, so that the first limiting portion 2111 can stably abut against the first limiting groove 1111. In addition, the first limiting groove 1111 and the first limiting portion 2111 are designed along a straight line, which is convenient for the processing and forming of the first limiting groove 1111 and the first limiting portion 2111, reducing the processing difficulty of the first limiting groove 1111 and the first limiting portion 2111, and reducing the cost of using high-precision equipment when manufacturing the cover opening limiting structure.

[0057] Of course, it is understandable that the first limiting groove 1111 and the first limiting portion 2111 may have different cross-sections, so that the first limiting portion 2111 and the first limiting groove 1111 can achieve special-shaped matching. Exemplarily, for example, the first limiting groove 1111 may be designed as a stepped groove, and correspondingly, the first limiting portion 2111 may be designed as a stepped protrusion.

[0058] In some embodiments, reference Figures 5 to 8 The first limiting groove 1111 is an arc-shaped groove. Correspondingly, the first limiting portion 2111 can be a square protrusion, or the first limiting portion 2111 can also be an arc-shaped protrusion.

[0059] Specifically, in this embodiment, the first limiting groove 1111 is designed as an arc-shaped groove, which can effectively prevent the first limiting portion 2111 from being stuck in the first limiting groove 1111, ensure that the first limiting portion 2111 can move into or out of the first limiting groove 1111, and improve the smoothness of the rotation of the cover body 200 relative to the box body 100.

[0060] In some embodiments, referring to Figures 3 to 8 , the second limiting groove 1121 is a sector-shaped groove, and the radian of the second limiting groove 1121 is π, the second limiting portion 2121 is a sector-shaped protrusion, and the radian of the second limiting portion 2121 is π / 2. Among them, the second limiting portion 2121 can rotate 90° in the second limiting groove 1121.

[0061] Specifically, in this embodiment, the second limiting portion 2121 can be arranged on the side wall of the rotating portion 210, so that the second limiting portion 2121 can play an auxiliary limiting role. The second limiting groove 1121 can be divided into an upper half and a lower half with the central axis as the demarcation line. The second limiting portion 2121 has a first abutting wall 21211 and a second abutting wall 21212. When the cover body 200 is in the first position 300 relative to the box body 100, the first abutting wall 21211 of the second limiting portion 2121 will contact the upper half of the second limiting groove 1121, and the upper half of the second limiting groove 1121 will play a limiting role on the first abutting wall 21211 of the second limiting portion 2121, so that the cover body 200 cannot continue to rotate relative to the box body 100 in the direction from the second position 400 to the first position 300, ensuring the positioning stability of the cover body 200 in the first position 300. When the cover body 200 is in the second position 400 relative to the box body 100, the second abutting wall 21212 of the second limiting portion 2121 will contact the lower half of the second limiting groove 1121, and the lower half of the second limiting groove 1121 will play a limiting role on the second abutting wall 21212 of the second limiting portion 2121, so that the cover body 200 cannot continue to rotate relative to the box body 100 in the direction from the first position 300 to the second position 400, ensuring the positioning stability of the cover body 200 in the second position 400 and preventing the cover body 200 from being deformed easily due to the extrusion force when the cover is closed.

[0062] In some embodiments, referring to Figure 3 and Figure 5, the installation part 110 has a fifth side wall 113, the fifth side wall 113 is disposed opposite to the second side wall 112, and the fifth side wall 113 is provided with a third limiting groove 1131. The rotating part 210 has a sixth side wall 213, the sixth side wall 213 is disposed opposite to the fourth side wall 212, and the sixth side wall 213 is protrudingly provided with a third limiting part 2131. Wherein, when the box body 100 and the cover body 200 are in the first position 300, the third limiting part 2131 abuts against the inside of the third limiting groove 1131.

[0063] Specifically, in this embodiment, the structure of the third limiting groove 1131 may refer to the structure of the second limiting groove 1121 in the above embodiment, and the structure of the third limiting part 2131 may refer to the structure of the second limiting part 2121 in the above embodiment. In other words, the third limiting groove 1131 and the second limiting groove 1121 may be symmetrically disposed on the installation part 110, and the third limiting part 2131 and the second limiting part 2121 may be symmetrically disposed on the rotating part 210. The abutting relationship between the third limiting part 2131 and the third limiting groove 1131 during the rotation of the cover body 200 may also refer to the abutting relationship between the second limiting part 2121 and the second limiting groove 1121 during the rotation of the cover body 200 in the above embodiment. By adding the third limiting part 2131 and the third limiting groove 1131, the positioning stability of the cover body 200 in the first position 300 and the second position 400 can be further improved.

[0064] In some embodiments, referring to Figures 3 to 8 , the installation part 110 is provided with a rotating shaft 114, the rotating part 210 is provided with a connecting hole 214, and the rotating shaft 114 is configured to be connected to the inside of the connecting hole 214 to realize the rotation of the cover body 200 relative to the box body 100 between the first position 300 and the second position 400.

[0065] Specifically, in this embodiment, when the user performs an operation of opening or closing the cover, the cover body 200 rotates forward or backward with the rotating shaft 114 as the rotation center. The connection manner between the cover body 200 and the box body 100 through the rotating shaft 114 can improve the connection stability between the cover body 200 and the box body 100 compared with the connection manner between the cover body 200 and the box body 100 through a rotating block, and prevent the cover body 200 from easily detaching from the box body 100.

[0066] In some embodiments, referring to Figure 1 and Figure 2 , the rotating part 210 is configured to be able to rotate 90° within the installation part 110, so that the cover body 200 can rotate 90° relative to the box body 100 between the first position 300 and the second position 400.

[0067] Specifically, in this embodiment, when the cover body 200 is in the first position 300 (open cover position) relative to the box body 100, the included angle between the cover body 200 and the box body 100 can be 90 degrees; when the cover body 200 is in the second position 400 (closed cover position) relative to the box body 100, the included angle between the cover body 200 and the box body 100 can be 0 degrees. Setting the rotation angle of the cover body 200 between the first position 300 and the second position 400 within the above range, on the one hand, it does not affect taking out the earphone from the charging bin, and on the other hand, it prevents the opening angle of the cover body 200 from being too large and causing unstable connection between the cover body 200 and the box body 100.

[0068] In some embodiments, the first limiting portion 2111, the second limiting portion 2121, and the rotating portion 210 are all structures made of plastic. Using plastic material can effectively reduce the production cost of the first limiting portion 2111, the second limiting portion 2121, and the rotating portion 210, improve the durability of the first limiting portion 2111, the second limiting portion 2121, and the rotating portion 210, and prevent the first limiting portion 2111, the second limiting portion 2121, and the rotating portion 210 from rusting.

[0069] In some embodiments, the first limiting portion 2111, the second limiting portion 2121, and the rotating portion 210 are of an integrally formed structure. Adopting an integrally formed structure is beneficial to improving the connection stability between the rotating portion 210 and the first limiting portion 2111, the second limiting portion 2121.

[0070] Correspondingly, another embodiment of the present utility model further provides a wireless Bluetooth earphone, and this wireless Bluetooth earphone includes the open cover limiting structure in any of the above embodiments.

[0071] Specifically, in this embodiment, for the wireless Bluetooth earphone applying the above open cover limiting structure, it can improve the structural strength of the charging bin in the open cover position of the cover body 200 and ensure the reliability of the cover body 200 when it is opened.

[0072] Benefiting from the improvement of the above open cover limiting structure, the wireless Bluetooth earphone in this embodiment has the same technical effects as the above open cover limiting structure, which will not be elaborated here.

[0073] It should be noted that for other contents of the open cover limiting structure and the wireless Bluetooth earphone disclosed by the present utility model, reference can be made to the prior art, which will not be elaborated here.

[0074] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. The cover opening limit structure is characterized by: For wireless Bluetooth headsets, the cover opening limit structure includes: A box body, wherein the box body is provided with a mounting portion, wherein the mounting portion has a first side wall and a second side wall which are adjacently arranged, wherein the first side wall is provided with a first limiting groove, and the second side wall is provided with a second limiting groove; A cover body, wherein the cover body is provided with a rotating portion, the rotating portion and the mounting portion are correspondingly provided, and the rotating portion is connected to the mounting portion, the rotating portion has a third side wall and a fourth side wall which are adjacently provided, the third side wall is protrudingly provided with a first limiting portion, and the fourth side wall is protrudingly provided with a second limiting portion; Wherein, the rotating part is configured to be able to rotate within the mounting part so that there is a first position and a second position between the box body and the cover body. When the box body and the cover body are in the first position, the first limiting part abuts against the first limiting groove, and the second limiting part abuts against the second limiting groove to realize the positioning of the box body and the cover body at the first position.

2. The cover opening limiting structure according to claim 1, characterized in that: The first limiting groove extends along a straight line from one end of the mounting portion to the other end opposite to the mounting portion, and the first limiting portion extends along a straight line from one end of the rotating portion to the other end opposite to the rotating portion; Wherein, the first limiting groove is arranged on a side close to the first position.

3. The cover opening limiting structure according to claim 2, characterized in that: The first limiting groove is an arc-shaped groove.

4. The cover opening limiting structure according to claim 1, characterized in that: The second limiting groove is a fan-shaped groove, and the arc of the second limiting groove is π, the second limiting portion is a fan-shaped protrusion, and the arc of the second limiting portion is π / 2; Wherein, the second limiting portion can rotate 90° in the second limiting groove.

5. The cover opening limiting structure according to claim 1, characterized in that: The mounting portion has a fifth side wall, the fifth side wall is arranged opposite to the second side wall, and the fifth side wall is provided with a third limiting groove; The rotating part has a sixth side wall, the sixth side wall is arranged opposite to the fourth side wall, and the sixth side wall is protrudingly provided with a third limiting part; Wherein, when the box body and the cover body are in the first position, the third limiting portion abuts against the third limiting groove.

6. The cover opening limiting structure according to claim 1, characterized in that: The mounting portion is provided with a rotating shaft, the rotating portion is provided with a connecting hole, and the rotating shaft is configured to be connected in the connecting hole to realize the rotation of the cover body relative to the box body between the first position and the second position.

7. The cover opening limiting structure according to claim 1, characterized in that: The rotating portion is configured to be rotatable 90° in the mounting portion, so that the cover body can be rotated 90° relative to the box body between the first position and the second position.

8. The cover opening limiting structure according to claim 1, characterized in that: The first limiting portion, the second limiting portion and the rotating portion are all structures made of plastic.

9. The cover opening limiting structure according to claim 1, characterized in that: The first limiting portion, the second limiting portion and the rotating portion are an integrally formed structure.

10. A wireless Bluetooth headset, characterized in that: It comprises a charging compartment, and the charging compartment comprises the cover opening limiting structure according to any one of claims 1 to 9.

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