Opening and closing structure and earphone box

Abstract

The utility model discloses an opening and closing structure and an earphone box, the opening and closing structure comprises a first part and a second part which are rotatably connected, the opening and closing structure also comprises an elastic support member, the elastic support member is connected with the second part, the first part is provided with an accommodating cavity for accommodating the elastic support member, one of the elastic support member and the bottom of the accommodating cavity is provided with an insertion part, and the insertion part is provided with a through hole. The other one of the elastic supporting piece and the cavity bottom of the containing cavity is provided with a concave part for containing the inserting part, when the elastic supporting piece is installed in the containing cavity, the inserting part is inserted into the concave part, and the supporting force of the elastic supporting piece can enable the inserting part to abut against the concave part so as to assist opening or closing. According to the opening and closing structure and the earphone box, installation can be simplified, and arrangement difficulty can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of earphone accessories, in particular to an opening and closing structure and an earphone case. Background Art

[0002] The earphone case of a Bluetooth earphone generally includes a bottom case and an upper cover rotatably connected to the bottom case, and a battery is arranged in the bottom case.

[0003] During use, the Bluetooth earphone is placed in the bottom case, and then the upper cover is closed. The battery in the bottom case can charge the Bluetooth earphone.

[0004] The earphone case is also provided with a spring. The acting force of the spring can assist in opening and closing the earphone case. At the same time, the spring is hidden in the bottom case or the upper cover, without affecting the appearance of the earphone case.

[0005] However, the space in the earphone case is narrow, and the installation of the spring is relatively complex, with great layout difficulty. Summary of the Utility Model

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an opening and closing structure, which can simplify the installation and reduce the layout difficulty.

[0007] The utility model also provides an earphone case with the above opening and closing structure.

[0008] An opening and closing structure according to an embodiment of the first aspect of the utility model includes a first component and a second component that are rotatably connected, and further includes an elastic support member. The elastic support member is connected to the second component. The first component is provided with a receiving cavity for receiving the elastic support member. One of the elastic support member and the bottom of the receiving cavity is provided with an insertion portion, and the other of the elastic support member and the bottom of the receiving cavity is provided with a recess for receiving the insertion portion. When the elastic support member is inserted into the receiving cavity, the insertion portion is inserted into the recess, and the supporting force of the elastic support member can make the insertion portion abut against the recess to assist in opening or closing.

[0009] The opening and closing structure and the earphone case according to the embodiment of the utility model have at least the following beneficial effects:

[0010] 1. By providing the receiving cavity, the utility model can reduce the exposure of the elastic support member, especially without affecting the appearance of the earphone case.

[0011] The utility model is provided with a receiving cavity. Therefore, when the first component rotates, most of the elastic support member remains in the receiving cavity. Thus, the risk of the insertion part and the concave part being separated and offset from each other can be reduced. At the same time, it is also convenient for the insertion part to be reinserted into the concave part, which can not only meet the use requirements of auxiliary opening and closing, but also reduce the compression amount between the insertion part and the concave part, and reduce the increased space due to the deformation of the elastic support member.

[0012] The utility model is provided with a receiving cavity. Therefore, when the elastic support member is installed in the receiving cavity, the receiving cavity can conduct rough guiding or fine guiding on the elastic support member, so that the end of the elastic support member can easily reach the set position.

[0013] Rough guiding is a rough limitation on the end of the elastic support member. It can be achieved by roughly defining the direction or orientation of the elastic support member and then making appropriate adjustments, such as manual assistance, to complete the installation. Specifically, it can be completed by the edge of the receiving cavity contacting the elastic support member.

[0014] In the earphone case, due to the small space of the earphone case, a receiving cavity is provided on the upper cover or the bottom shell of the earphone case. The gap between the receiving cavity and the elastic support member is small, which can improve the guiding accuracy of the elastic support member.

[0015] Fine guiding is an accurate limitation on the end of the elastic support member. It can be achieved by abutting against the end of the elastic support member, so that the end of the elastic support member slides along a specific track, enabling the insertion part to be accurately inserted into the concave part without the need for manual adjustment, not relying on the operation proficiency of the operator, and also less need to increase the fitting clearance or fitting depth between the concave part and the insertion part to meet the installation requirements.

[0016] In the utility model, the specific track can be a guiding rib, which is easy to manufacture and occupies little space. During installation, the insertion part can be made to abut against the guiding rib and slide along the guiding rib, so that the insertion part can smoothly enter the concave part.

[0017] In the utility model, the end of the elastic support member is the insertion part. The fitting clearance refers to the distance between the insertion part and the inner surface of the concave part, and the fitting depth refers to the depth of the insertion part inserted into the concave part.

[0018] 2. The utility model is provided with an elastic support member. Therefore, the supporting force of the elastic support member can maintain or restore the state of the insertion part inserted into the concave part, meeting the use requirements of auxiliary opening and closing.

[0019] 3. In the present utility model, one of the elastic support member and the bottom of the accommodating cavity is provided with an insertion portion, and the other of the elastic support member and the bottom of the accommodating cavity is provided with a recess for accommodating the insertion portion. Therefore, when the elastic support member enters the accommodating cavity, along the loading direction of the elastic support member, the insertion portion is inserted into the recess, and the installation can be completed. The operation is very simple. Moreover, when the insertion portion is inserted into the recess, the elastic support member can be prevented from swinging randomly in the accommodating cavity, the risk of the elastic support member contacting the accommodating cavity during use can be reduced, and the normal force application of the elastic support member can be ensured.

[0020] At the same time, when the insertion portion is inserted into the recess, the installation can be completed. Therefore, compared with the prior art, in this embodiment, less operation adjustment in other directions is required, the installation difficulty is reduced, and at the same time, more space does not need to be reserved in the accommodating cavity.

[0021] For example, the spring is swung left and right to generate a displacement perpendicular to the loading direction of the spring, so that the installation end of the spring is inserted into the corresponding hole position to complete the installation. In this example, the installation end of the spring is a rod formed by bending perpendicular to the spring body.

[0022] At the same time, when the insertion portion is inserted into the recess, the installation can be completed. Therefore, compared with the prior art, in this embodiment, less need for hands or tools to reach into the accommodating cavity for assembly assistance, further reducing the installation difficulty. Moreover, in this embodiment, the accommodating cavity can also be designed to be smaller, further reducing the occupied space and reserving more space for the earphone box, facilitating other arrangements.

[0023] The specific operations of hands or tools reaching into the accommodating cavity for assembly assistance include pulling the installation end of the spring so that the installation end hooks the corresponding pin or position. In this example, the installation end of the spring is a hook formed by bending.

[0024] At the same time, when the insertion portion is inserted into the recess, the installation can be completed. Therefore, whether the installation sequence is to first insert the insertion portion into the recess or to first connect the elastic support member to the second component, the installation can be completed, and less strict restrictions on the installation steps are required.

[0025] At the same time, compared with the prior art, the structures of the insertion portion and the recess are relatively simple and easy to be realized in manufacturing. For example, the insertion portion is manufactured by bending a metal wire, and the recess is manufactured by plastic injection molding, reducing the manufacturing difficulty.

[0026] At the same time, the space occupied by the insertion portion and the recess is small, which is convenient for application on products with a narrow layout space such as earphone boxes.

[0027] 4. In the present utility model, the supporting force of the elastic support member can cause the insertion portion to abut against the recessed portion to assist in opening or closing, which can be an assistance to the opening process, or an assistance to the closing process, or can have both the functions of opening assistance and closing assistance at the same time.

[0028] For example, in a headphone case, a magnetic attraction structure can be provided between the upper cover and the bottom shell so that the upper cover remains closed on the bottom shell. Therefore, the opening and closing structure can only participate in assisting the opening.

[0029] In some specific embodiments of the present utility model, the opening and closing structure can assist in both opening and closing, so as to eliminate the magnetic attraction structure and reserve more space.

[0030] For example, with reference to Figure 1 , in terms of the design principle, the first component can have an open position A and a closed position B. The open position and the closed position are on both sides of a straight line ab, which is the connection line between the rotation center a of the first component and the connection point b. The connection point b is the position where the elastic support member is connected to the second component, and is usually also a rotation center. Therefore, under the action of the elastic support member, the first component will rotate in a direction deviating from the straight line ab. Thus, when an external force causes the contact point c between the first component and the elastic support member to cross the straight line ab, the contact point c is the position where the insertion portion and the recessed portion abut against each other. The supporting force of the elastic support member will cause the contact point c to move away from the straight line ab, realizing assisted opening and assisted closing, so that the first component can maintain the open state and the closed state. Furthermore, the magnetic attraction structure is eliminated.

[0031] For an opening and closing structure according to an embodiment of the first aspect of the present utility model, the elastic support member is provided with the insertion portion, and the first component is provided with the recessed portion.

[0032] Beneficially: In the present utility model, by providing the elastic support member with the insertion portion and the bottom of the accommodation cavity with the recessed portion, therefore, the insertion portion can be formed by using the manufacturing process of the elastic support member and maintain the corresponding strength. At the same time, the recessed portion can be formed by using the manufacturing process of the first component, and it is less necessary to increase the space of the accommodation cavity. Therefore, it is both convenient for manufacturing and reduces the occupied space.

[0033] For an opening and closing structure according to an embodiment of the first aspect of the present utility model, the insertion portion includes a first ring, the first ring is a semi-circle, a circle or a spiral ring, the axis of the first ring is parallel to the rotation axis of the first component, and the outer side of the first ring is used to abut against the recessed portion.

[0034] Advantageously, in the present utility model, by making the insertion part include a first loop, and the first loop being a semi-loop, a circular loop or a spiral loop, the outer contour of the insertion part can be increased, the gap between the insertion part and the accommodation cavity can be reduced, facilitating the insertion of the insertion part into the recessed part. At the same time, even if the outer circular surface of the first loop contacts the wall of the accommodation cavity, smooth installation can still be achieved.

[0035] However, if the insertion part is a thin rod end, the insertion part is very likely to contact the wall of the accommodation cavity and get stuck, making the installation not smooth enough. At the same time, the pressure between the recessed part and the insertion part is increased. When the recessed part is made of plastic, the recessed part is damaged. At the same time, the position where the recessed part contacts the insertion part varies, which may affect the effect of auxiliary opening and closing.

[0036] In the present utility model, by making the axis of the first loop parallel to the rotation axis of the first component, and the outer side of the first loop being used to abut against the recessed part. Thus, when the first component rotates, the first loop will also rotate relative to the first component, and different parts of the outer side of the first loop contact the recessed part, ensuring the normal and effective function of the auxiliary opening and closing. At the same time, the distance from the center of the first loop to the first component hardly changes, which is the same as the effect of rotatably connecting the first component with the elastic support member, without affecting the use effect.

[0037] According to an opening and closing structure of the first aspect embodiment of the present utility model, the insertion part includes at least two first loops, and the insertion part further includes a connecting arm that connects two adjacent first loops.

[0038] Advantageously, in the present utility model, by increasing the number of first loops, the specification size of the elastic support member along the rotation axis of the first component can be increased, the torsion of the elastic support member itself can be reduced, and the limitation of the force exerted by the elastic support member can be avoided. For example, when the elastic support member touches the wall of the accommodation cavity, the force exerted by the insertion part on the recessed part is reduced.

[0039] According to an opening and closing structure of the first aspect embodiment of the present utility model, the elastic support member includes an elastic support arm. One end of the elastic support arm is provided with the insertion part, the other end of the elastic support arm is provided with a mounting part for connecting the second component. The elastic support arm includes a first arm part connecting the insertion part, a second arm part connecting the mounting part, and a first spiral connecting the first arm part and the second arm part. The axis of the first spiral is parallel to the rotation axis of the first component.

[0040] Advantageously, in the present utility model, by providing the elastic support arm, making the elastic support arm include a first spiral, and making the axis of the first spiral parallel to the rotation axis of the first component. Thus, a torsion spring structure is also used to generate the supporting force, which can not only meet the force application requirements but also make full use of the space on the earphone case without affecting the arrangement of the earphones.

[0041] For example, the upper cover of the earphone box has a first shell and a first lining. The first lining is located in the first shell. The first lining has two shell parts, and the two shell parts respectively accommodate the top of an earphone. At the same time, since the first lining is mostly injection molded, in order to maintain uniform wall thickness or reduce material consumption, a gap will be formed between the two shell parts, and this gap can be used to set the first spiral.

[0042] Moreover, the two shells are located on both sides of the axial direction of the first spiral. The axial specifications of the first spiral are relatively small, and the gap is sufficient to meet the layout needs. There is less need to increase the distance between the two shells, avoid increasing the external dimensions of the earphone box, and there is less need to reduce the internal space of the shell, which does not affect the layout of the earphones.

[0043] According to an opening and closing structure of an embodiment of the first aspect of the present invention, the elastic support member includes two elastic support arms, and the two elastic support arms are arranged side by side.

[0044] Advantageously, the present invention can increase the supporting strength of the elastic support member by providing two elastic support arms, while avoiding increasing the deformation or compression of a single elastic support member, thereby less affecting the installation of the elastic support member.

[0045] At the same time, the two elastic support arms can form two-point support, applying force evenly to assist opening and closing, and at the same time, match the shape of the accommodating cavity to fully utilize the internal space of the accommodating cavity.

[0046] The earphone box has a larger size on the rotation axis of the upper cover, so that the size of the accommodating cavity along the rotation axis of the upper cover is also larger, which is convenient for arranging the two elastic support arms.

[0047] According to an opening and closing structure of an embodiment of the first aspect of the present utility model, the two first arms are connected to the insertion portion at the same time, the mounting portion is a half-axis connecting the first arms, and the two half-axis are located on the side close to or away from the two first arms.

[0048] Advantageously, the present invention enables the two first arm portions to be connected to the inserting portion at the same time, so that the two elastic support arms are connected into one part, thereby reducing the number of parts.

[0049] In the present invention, the mounting portion is formed as a half-shaft connected to the first arm portion, and the two half-shafts are located on the adjacent side or the opposite side of the two first arms. Therefore, when the two half-shafts are inserted into the corresponding mounting holes, the first arm portion will abut the mounting holes, preventing the half-shafts from falling out of the mounting holes. This reduces the need for additional limiting structures, thereby further simplifying the first component. For example, the enclosure surrounding the elastic support member can be omitted.

[0050] According to an opening and closing structure of an embodiment of the first aspect of the present utility model, the two second arm portions are connected to the mounting portion at the same time, the mounting portion is a connecting shaft connecting the two second arm portions, the second component is provided with a mounting hole for accommodating the rotation of the connecting shaft, the mounting hole is a semi-enclosed hole, and the connecting shaft is pressed into the mounting hole from the missing part of the semi-enclosed hole.

[0051] Advantageously, the present invention provides a connecting shaft and a mounting hole so that the mounting hole is a semi-enclosed hole. Thus, the connecting shaft can be inserted radially from the mounting hole, and there is less need to displace the mounting portion along the rotation axis of the first component, and there is less need to increase the specifications of the accommodating cavity along the rotation axis of the first component.

[0052] At the same time, because the elastic support member provides internal support, the connecting shaft is unlikely to fall out of the missing portion of the semi-enclosed hole, thus not affecting its use. Furthermore, by properly arranging the orientation of the missing portion, the rotational range of the first component is not affected while also reducing the dimensional accuracy requirements of the missing portion. For example, the width of the missing portion can be made close to the diameter of the mounting hole, making it easier for the connecting shaft to fit into the mounting hole. This reduces the need to narrow the missing portion to prevent it from falling out, which would increase the difficulty of fitting the connecting shaft into the mounting hole.

[0053] According to an opening and closing structure of an embodiment of the first aspect of the present utility model, the first component includes a first outer shell and a first lining, the space between the first outer shell and the first lining is used to set the accommodating cavity, the inner surface of the first outer shell is used to form the recessed portion, the first outer shell is provided with a platform and a surrounding plate extending along the contour of the platform, and the space enclosed by the platform, the surrounding plate and a part of the first outer shell is used to form the recessed portion.

[0054] Advantageously, the present invention can conveniently form a recessed portion by arranging a platform and a panel on the inner surface of the first shell, thereby facilitating production and manufacturing.

[0055] According to an opening and closing structure of an embodiment of the first aspect of the present invention, the inner side of the enclosure is used to limit the elastic support arm to prevent the elastic support arm from moving away from the mounting hole and causing the half-shaft to fall out of the mounting hole.

[0056] According to an opening and closing structure of an embodiment of the first aspect of the present utility model, the first component includes a first outer shell and a first lining, the space between the first outer shell and the first lining is used to set the recessed portion, and the inner surface of the first outer shell is provided with guide ribs. During assembly, the guide ribs abut the insertion portion to allow the insertion portion to enter the recessed portion.

[0057] Advantageously, the present invention provides guide ribs, which can abut against the inserting portion during installation, thereby guiding the inserting portion and allowing the inserting portion to smoothly enter the recessed portion.

[0058] An opening and closing structure according to an embodiment of the first aspect of the present utility model, wherein the second component includes a second outer shell, a second inner lining, and a connecting member disposed between the second outer shell and the second inner lining. The connecting member has a protruding portion, and the first component is provided with a concave portion for accommodating the protruding portion. The concave portion is rotatably connected to the protruding portion to achieve the rotational connection between the first component and the second component. The elastic support member is connected to the protruding portion to achieve the connection between the elastic support member and the second component.

[0059] Advantageously: By providing the connecting member, the connecting member has a protruding portion, and the first component is provided with a concave portion for accommodating the protruding portion. Both the first component and the elastic support member are connected to the second component through the protruding portion, so that the space occupied by the second component is reduced, facilitating the arrangement of respective components in the second component. For example, a battery, a circuit board, and a charging interface are arranged in the bottom case of the earphone case.

[0060] Since the connecting member is located between the second outer shell and the second inner lining, the gap between the second outer shell and the second inner lining can be utilized without affecting the product appearance.

[0061] An opening and closing structure according to an embodiment of the first aspect of the present utility model, wherein the second outer shell or the second inner lining is provided with a side plug pin, and the connecting member is provided with a side socket for accommodating the side plug pin. The side plug pin cooperates with the side socket to prevent the connecting member from disengaging between the second outer shell and the second inner lining.

[0062] Advantageously: By providing the side plug pin and the side socket, the fixing of the connecting member can be completed, improving the fixing strength. At the same time, screws are omitted, simplifying the assembly.

[0063] An earphone case according to an embodiment of the second aspect of the present utility model includes a bottom case and an upper cover, and the bottom case and the upper cover are connected through the above-mentioned opening and closing structure.

[0064] Advantageously: By applying the above-mentioned opening and closing structure, not only the above effects can be achieved, but also the disadvantages of the narrow space in the earphone case and the difficulty in arrangement can be overcome. It is convenient for assembly, reduces the assembly difficulty, and simplifies the structure. For example, complex hole positions or hanging points for connecting the elastic support member are omitted on the first component, and the number of components is reduced. For example, the bracket for connecting the elastic support member is omitted on the first component, reducing the cost.

[0065] An earphone case according to an embodiment of the second aspect of the present utility model, wherein the upper cover includes the first component, and the bottom case includes the second component.

[0066] Advantageously, in the present utility model, the upper cover includes a first component and the bottom shell includes a second component. Therefore, a receiving cavity and the like can be arranged in the upper cover, reducing the occupation of the bottom shell, so that more space can be reserved in the bottom shell, facilitating layout. For example, the volume of the battery can be increased, and the capacitance of the earphone box can be increased.

[0067] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model 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 utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0069] Figure 1 Schematic diagram of the principle of an opening and closing structure of the present utility model;

[0070] Figure 2 For Figure 1 Schematic diagram of the structure of an earphone box applying the opening and closing structure;

[0071] Figure 3 For Figure 2 Cross-sectional view of the opened state of the earphone box;

[0072] Figure 4 For Figure 3 Schematic diagram of the structure of the first embodiment of the elastic support member in;

[0073] Figure 5 For Figure 3 Schematic diagram of the structure of the second embodiment of the elastic support member in;

[0074] Figure 6 For Figure 2 Assembly diagram of the earphone box;

[0075] Figure 7 For Figure 6 Stereoscopic diagram of the first outer shell in.

[0076] Reference numerals: 100 - first component, 110 - second component, 120 - elastic support, 130 - accommodation cavity, 140 - insertion part, 150 - recessed part, 160 - first loop, 170 - connecting arm, 180 - first arm part, 190 - second arm part, 200 - first helix, 210 - mounting part, 220 - first outer shell, 230 - first inner lining, 240 - platform part, 250 - surrounding plate, 260 - guiding rib, 270 - second outer shell, 280 - second inner lining, 290 - connecting piece, 300 - protruding part, 310 - concave part, 320 - side bolt. Detailed implementation manners

[0077] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0078] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0079] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, and understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If the first and the second are described, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0080] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed, connected and joined" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0081] The opening and closing structure and the earphone case according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0082] Refer to Figure 1, the present utility model aims to provide an embodiment of an opening and closing structure.

[0083] In this embodiment, the opening and closing mechanism includes a first component 100 and a second component 110 that are rotatably connected, and further includes an elastic support member 120. The elastic support member 120 is connected to the second component 110. The first component 100 is provided with a receiving cavity 130 for receiving the elastic support member 120. One of the elastic support member 120 and the bottom of the receiving cavity 130 is provided with an insertion portion 140, and the other of the elastic support member 120 and the bottom of the receiving cavity 130 is provided with a recessed portion 150 for receiving the insertion portion 140. The supporting force of the elastic support member 120 can cause the insertion portion 140 to abut against the recessed portion 150 to assist in opening or closing.

[0084] Therefore, in some specific embodiments of the present utility model, the elastic support member 120 can include the insertion portion 140. The first component 100 is provided with a receiving cavity 130 for receiving the elastic support member 120, and the bottom of the receiving cavity 130 is provided with a recessed portion 150 for receiving the insertion portion 140.

[0085] Therefore, in some specific embodiments of the present utility model, the elastic support member 120 can include the recessed portion 150. The first component 100 is provided with a receiving cavity 130 for receiving the elastic support member 120, and the bottom of the receiving cavity 130 is provided with an insertion portion 140 for inserting into the recessed portion 150.

[0086] Therefore, in some specific embodiments of the present utility model, insertion portions 140 and recessed portions 150 for receiving the insertion portions 140 can be provided both between the elastic support member 120 and the first component 100 and between the elastic support member 120 and the second component 110. One of the first component 100 and the second component 110 is provided with a receiving cavity 130, and the recessed portion 150 or the insertion portion 140 is provided at the bottom of the receiving cavity 130.

[0087] Referring to Figure 2 and Figure 3 , the present utility model aims to provide an embodiment of a headphone case. The headphone case of this embodiment applies the above-mentioned opening and closing structure to overcome the problems of difficult installation or arrangement due to limited space.

[0088] The opening and closing structure of this embodiment has universality and can also be applied to other products, and should not be limited to the headphone case.

[0089] In the headphone case of this embodiment, the headphone case includes a bottom shell and an upper cover rotatably connected to the bottom shell. Correspondingly, the first component 100 can correspond to the upper cover, and the second component 110 can correspond to the bottom shell. At the same time, the present utility model does not exclude the technical solution in which the first component 100 corresponds to the bottom shell and the second component 110 corresponds to the upper cover.

[0090] In summary, in this embodiment, by providing the accommodating cavity 130 , the exposure of the elastic supporting member 120 can be reduced, and in particular, the appearance of the earphone box is not affected.

[0091] In this embodiment, the accommodating cavity 130 is provided. Therefore, when the first component 100 rotates, most of the elastic support member 120 remains in the accommodating cavity 130. Therefore, the risk of the insertion portion 140 and the recessed portion 150 being separated and misaligned from each other can be reduced. At the same time, it is also convenient for the insertion portion 140 to be reinserted into the recessed portion 150, which can not only meet the needs of use, but also reduce the compression between the insertion portion 140 and the recessed portion 150, and reduce the space increased by the deformation of the elastic support member 120.

[0092] In this embodiment, the accommodating cavity 130 is provided. Therefore, when the elastic support member 120 is installed in the accommodating cavity 130, the accommodating cavity 130 can roughly guide or finely guide the elastic support member 120, so that the end of the elastic support member 120 can easily reach the set position.

[0093] The rough guide is a rough limitation of the end of the elastic support member 120. The installation can be completed by roughly limiting the direction or orientation of the elastic support member 120 and then making appropriate adjustments, such as manual assistance. Specifically, it can be completed by the edge of the accommodating cavity 130 contacting the elastic support member 120.

[0094] In the earphone box, due to the narrow space of the earphone box, the upper cover or the bottom shell of the earphone box is provided with a receiving cavity 130, and the gap between the receiving cavity 130 and the elastic support member 120 is small, which can improve the guiding accuracy of the elastic support member 120.

[0095] The precise guidance is the precise limitation of the end of the elastic support member 120. By abutting the end of the elastic support member 120, the end of the elastic support member 120 can slide along a specific track, so that the insertion part 140 is accurately inserted into the recessed part 150. It does not require manual adjustment, does not rely on the operator's operational proficiency, and rarely needs to increase the fitting clearance or fitting depth between the recessed part 150 and the insertion part 140 to meet installation requirements.

[0096] In this embodiment, the specific track can be a guide rib 260, which is easy to manufacture and takes up little space. During installation, the insertion part 140 can abut the guide rib 260 and slide along the guide rib 260, so that the insertion part 140 can smoothly enter the recessed part 150.

[0097] In this embodiment, the end of the elastic support member 120 is the insertion portion 140 , the fitting clearance refers to the distance between the insertion portion 140 and the inner surface of the recessed portion 150 , and the fitting depth refers to the depth of the insertion portion 140 inserted into the recessed portion 150 .

[0098] In the present utility model, by providing the elastic support member 120, thus, the supporting force of the elastic support member 120 can maintain or restore the state where the insertion portion 140 is inserted into the recessed portion 150, meeting the usage requirements for auxiliary opening and closing.

[0099] In this embodiment, by providing the insertion portion 140 on one of the elastic support member 120 and the bottom of the accommodation cavity 130, and providing the recessed portion 150 for accommodating the insertion portion 140 on the other of the elastic support member 120 and the bottom of the accommodation cavity 130, thus, when the elastic support member 120 enters the accommodation cavity 130, along the loading direction of the elastic support member 120, the insertion portion 140 is inserted into the recessed portion 150, and the installation can be completed. The operation is very simple. Moreover, when the insertion portion 140 is inserted into the recessed portion 150, the elastic support member 120 can be prevented from swinging randomly within the accommodation cavity 130, the risk of the elastic support member 120 contacting the accommodation cavity 130 during use can be reduced, and the normal force application of the elastic support member 120 can be ensured.

[0100] Meanwhile, when the insertion portion 140 is inserted into the recessed portion 150, the installation can be completed. Thus, compared with the prior art, in this embodiment, fewer operation adjustments in other directions are required, the installation difficulty is reduced, and at the same time, the accommodation cavity 130 does not need to reserve more space.

[0101] For example, the spring is swung left and right to generate a displacement perpendicular to the loading direction of the spring, so that the installation end of the spring is inserted into the corresponding hole position to complete the installation. In this example, the installation end of the spring is a rod bent perpendicular to the spring body.

[0102] Meanwhile, when the insertion portion 140 is inserted into the recessed portion 150, the installation can be completed. Thus, compared with the prior art, in this embodiment, fewer hands or tools are needed to reach into the accommodation cavity 130 for assembly assistance, further reducing the installation difficulty. Moreover, in this embodiment, the accommodation cavity 130 can also be designed to be smaller, further reducing the occupied space and reserving more space for the earphone box, facilitating other arrangements.

[0103] The specific operations of reaching into the accommodation cavity 130 with hands or tools for assembly assistance include pulling the installation end of the spring so that the installation end hooks onto the corresponding pin or position. In this example, the installation end of the spring is a hook formed by bending.

[0104] Meanwhile, when the insertion portion 140 is inserted into the recessed portion 150, the installation can be completed. Thus, whether the installation sequence is to first insert the insertion portion 140 into the recessed portion 150 or to first connect the elastic support member 120 to the second component 110, the installation can be completed, and fewer strict restrictions on the installation steps are required.

[0105] At the same time, compared with the prior art, the structures of the inserting portion 140 and the recessed portion 150 are relatively simple and easy to manufacture. For example, the inserting portion 140 is made of bent metal wire, and the recessed portion 150 is made of plastic injection molding, which reduces the manufacturing difficulty.

[0106] At the same time, the insertion portion 140 and the recessed portion 150 occupy a small space, which is convenient for application in products with limited layout space such as earphone boxes.

[0107] In this example, the supporting force of the elastic support member 120 enables the insertion portion 140 to abut against the recessed portion 150 to assist in opening or closing. This can be an assistance to the opening process, an assistance to the closing process, or both functions of assisting opening and assisting closing.

[0108] For example, in the earphone box, a magnetic structure can be provided between the upper cover and the bottom shell so that the upper cover keeps covering the bottom shell, and thus the opening and closing structure can only participate in assisting the opening.

[0109] In some specific embodiments of the present invention, the opening and closing structure can be used to assist in both opening and closing, thereby eliminating the need for a magnetic attraction structure and reserving more space.

[0110] For example, refer to Figure 1 In terms of design principle, the first component 100 can have an open position A and a closed position B. The open position and the closed position are located on both sides of a straight line ab. The straight line ab is the line connecting the rotation center a of the first component 100 and the connection point b. The connection point b is the position where the elastic support member 120 connects to the second component 110, which is usually also a rotation center. Therefore, under the action of the elastic support member 120, the first component 100 will rotate in a direction deviating from the straight line ab. Therefore, when the external force causes the contact point c between the first component 100 and the elastic support member 120 to cross the straight line ab, the contact point c is the position where the insertion portion 140 and the recessed portion 150 abut, and the supporting force of the elastic support member 120 will cause the contact point c to move away from the straight line ab, thereby realizing auxiliary opening and auxiliary closing, so that the first component 100 can maintain the open state and the closed state, thereby eliminating the magnetic attraction structure.

[0111] In this embodiment, a technical solution is described as follows: the first component 100 corresponds to the upper cover, the second component 110 corresponds to the bottom shell, the elastic support member 120 is provided with an inserting portion 140, and the first component 100 is provided with a recessed portion 150.

[0112] It is easy to understand that in this embodiment, by providing the insertion portion 140 on the elastic support member 120 and the recessed portion 150 on the bottom of the accommodation cavity 130, the insertion portion 140 can be formed using the manufacturing process of the elastic support member 120 while maintaining the corresponding strength, such as the steel wire bending process. At the same time, the recessed portion 150 can be formed using the manufacturing process of the first component 100, and it is less necessary to increase the space of the accommodation cavity 130, such as the injection molding manufacturing process. Therefore, it is both convenient for manufacturing and reduces the occupied space.

[0113] It is easy to understand that in this embodiment, by applying the above-mentioned opening and closing structure, not only can the above-mentioned effects be achieved, but also the drawback that it is difficult to arrange due to the narrow space of the earphone case can be overcome. It is both convenient for assembly, reduces the assembly difficulty, and simplifies the structure. For example, the complex hole positions or hanging points for connecting the elastic support member 120 are omitted on the first component 100, and the number of components is reduced. For example, the bracket for connecting the elastic support member 120 is omitted on the first component 100, reducing the cost.

[0114] Similarly, it is easy to understand that in this embodiment, by making the upper cover include the first component 100 and the bottom case include the second component 110, the accommodation cavity 130 and the like can be arranged in the upper cover, reducing the occupation of the bottom case, so that more space can be reserved for the bottom case, facilitating the arrangement. For example, increasing the volume of the battery and the capacitance of the earphone case.

[0115] In some specific embodiments of the present utility model, the elastic support member 120 can be understood as a leaf spring and a spring, and the spring includes a helical spring and a torsion spring.

[0116] In some specific embodiments of the present utility model, the insertion portion 140 can include a rod end. That is, the steel wire is wound into the elastic support member 120, and the free end of the steel wire forms the insertion portion 140 to reduce the manufacturing difficulty and cost.

[0117] In some specific embodiments of the present utility model, the rod-shaped insertion portion 140 can be parallel to the rotation axis of the first component 100 to improve the stability of the elastic support member 120, and at the same time, the required arrangement space is small.

[0118] In some specific embodiments of the present utility model, the insertion portion 140 can include a rod end and a sleeve body sleeved on the rod end. The sleeve body can be made of metal, or non-metal rubber or plastic, etc., to increase the specification of the insertion portion 140, reduce the gap between the insertion portion 140 and the accommodation cavity 130, and facilitate the insertion portion 140 to be installed in place.

[0119] Refer to Figure 4 , in some specific embodiments of the present utility model, the insertion portion 140 can include a first loop 160, and the first loop 160 is a half loop, a full loop or a spiral loop.

[0120] It is easy to understand that in this embodiment, by making the insertion part 140 include the first loop 160, and making the first loop 160 a semi-loop, a circular loop or a spiral loop, it can not only meet the requirement of reducing the gap between the insertion part 140 and the accommodation cavity 130 for convenient installation. At the same time, in terms of manufacturing, the specification of the insertion part 140 can be increased by bending the steel wire, following the manufacturing process of the spring, without increasing the manufacturing difficulty and with a limited increase in manufacturing cost, which is convenient for mass production and manufacturing.

[0121] In some specific embodiments of the present utility model, the first loop 160 can be a separately manufactured part, and the connection and fixation are achieved through welding to meet the requirements of trial production or small-batch production.

[0122] In some specific embodiments of the present utility model, the axis of the first loop 160 can be perpendicular to the rotation axis of the first component 100, so as to make full use of the space along the extension direction of the contour of the upper cover.

[0123] In some specific embodiments of the present utility model, the axis of the first loop 160 can be parallel to the rotation axis of the first component 100, and the outer side of the first loop 160 is used to abut against the recessed part 150.

[0124] It is easy to understand that in this embodiment, by making the insertion part 140 include the first loop 160, and making the first loop 160 a semi-loop, a circular loop or a spiral loop, thus, the outer contour of the insertion part 140 can be increased, the gap between the insertion part 140 and the accommodation cavity 130 can be reduced, which is convenient for the insertion part 140 to be inserted into the recessed part 150. At the same time, even if the outer circular surface of the first loop 160 contacts the wall of the accommodation cavity 130, smooth installation can also be achieved.

[0125] If the insertion part 140 is a thin rod end, the insertion part 140 is very likely to contact the wall of the accommodation cavity 130 and get stuck, making the installation not smooth. At the same time, the thin rod end will increase the pressure between the recessed part 150 and the insertion part 140. When the recessed part 150 is made of plastic, the recessed part 150 is easily damaged. At the same time, the positions where the recessed part 150 contacts the insertion part 140 are variable and not unique, which may affect the effect of assisting opening and closing.

[0126] It is easy to understand that in this embodiment, by making the axis of the first loop 160 parallel to the rotation axis of the first component 100, and the outer side of the first loop 160 is used to abut against the recessed part 150. Thus, when the first component 100 rotates, the first loop 160 will also rotate relative to the first component 100, and different parts of the outer side of the first loop 160 contact the recessed part 150, ensuring the normal and effective function of the auxiliary opening and closing. At the same time, the distance from the center of the first loop 160 to the first component 100 hardly changes, which is the same as the effect of rotatably connecting the first component 100 with the elastic support member 120, without affecting the use effect.

[0127] Refer toFigure 5 , in some specific embodiments of the present utility model, the insertion part 140 may include at least two first rings 160. The insertion part 140 further includes a connecting arm 170, and the connecting arm 170 connects two adjacent first rings 160. In this embodiment, there are two first rings 160.

[0128] It is easy to understand that in this embodiment, by increasing the number of the first rings 160, the specification size of the elastic support member 120 along the rotation axis of the first component 100 can be increased, the torsion of the elastic support member 120 itself can be reduced, and the limitation of the force application of the elastic support member 120 can be avoided. For example, the elastic support member 120 touches the wall of the accommodating cavity 130, reducing the acting force of the insertion part 140 on the concave part 150.

[0129] It is easy to understand that in this embodiment, by providing at least two first rings 160 and providing the connecting arm 170, thus, the insertion part 140 is equivalent to a rotating shaft. In this embodiment, the outer diameter of the rotating shaft is equal to the outer diameter of the first ring 160, and the length of the rotating shaft is equal to the distance between the two opposite sides of the two first rings 160, increasing the force application area of the insertion part 140 and enabling the earphone box to open and close evenly.

[0130] In some specific embodiments of the present utility model, the insertion part 140 may be in the shape of a door frame. The two free ends of the door frame shape are connected to the elastic support member 120, reducing the material used for the insertion part 140, lowering the manufacturing cost. At the same time, the occupied space of the concave part 150 can be reduced, reserving more space for the layout of the earphone box.

[0131] In some specific embodiments of the present utility model, rib positions may be provided on the inner surface of the first housing, and concave positions are provided on the rib positions, and the concave positions form the concave part 150, reducing the manufacturing difficulty and the occupied space of the concave part 150.

[0132] Refer to Figure 4 and Figure 5 , in some specific embodiments of the present utility model, the elastic support member 120 may include an elastic support arm. One end of the elastic support arm is provided with the insertion part 140, and the other end of the elastic support arm is provided with an installation part 210 for connecting the second component 110. The elastic support arm includes a first arm part 180 connecting the insertion part 140, a second arm part 190 connecting the installation part 210, and a first helix 200 connecting the first arm part 180 and the second arm part 190. The axis of the first helix 200 is parallel to the rotation axis of the first component 100.

[0133] It is easy to understand that in this embodiment, by providing the elastic support arm, the elastic support arm includes the first helix 200, and the axis of the first helix 200 is parallel to the rotation axis of the first component 100. Therefore, a torsion spring structure is also used to generate the support force, which can not only meet the force application requirements but also make full use of the space on the earphone case without affecting the arrangement of the earphones.

[0134] For example, the upper cover of the earphone case has a first housing and a first inner lining 230. The first inner lining 230 is located inside the first housing. The first inner lining 230 has two housing parts, and the two housing parts respectively accommodate the tops of the two earphones. At the same time, since the first inner lining 230 is mostly injection-molded, in order to keep the wall thickness uniform or reduce the material consumption, a gap will be formed between the two housing parts, and this gap can be used to arrange the first helix 200.

[0135] Moreover, the two housing parts are located on both sides of the axis of the first helix 200. The axial specification of the first helix 200 is small, and this gap is sufficient to meet the arrangement requirements. There is less need to increase the distance between the two housing parts to avoid increasing the external size of the earphone case, and there is also less need to reduce the internal space of the housing part, without affecting the arrangement of the earphones.

[0136] It is easy to understand that when the upper cover rotates, the deformation of the torsion spring is concentrated at the first helix 200, and the space required for the deformation of the torsion spring is small.

[0137] It should be noted that the present utility model does not exclude the technical solution in which the axis of the first helix 200 is perpendicular to the rotation axis of the upper cover. However, the radial direction of the first helix 200 will occupy more space. Moreover, the deformation of the axis of the first helix 200 makes the first helix 200 occupy a large space, and the application of the opening and closing structure is restricted by the product arrangement.

[0138] In some specific embodiments of the present utility model, the elastic support member 120 can include two elastic support arms, and the two elastic support arms are arranged side by side.

[0139] It is easy to understand that in this embodiment, by providing two elastic support arms, the support strength of the elastic support member 120 can be increased, and at the same time, the deformation amount or compression amount of a single elastic support member 120 is avoided from increasing, and the installation of the elastic support member 120 is less affected.

[0140] At the same time, the two elastic support arms can form two-point support, and the force application evenly assists in opening and closing. At the same time, it matches the shape of the accommodating cavity 130 and makes full use of the internal space of the accommodating cavity 130.

[0141] The specification of the earphone case on the rotation axis of the upper cover is large, so that the size of the accommodating cavity 130 along the rotation axis of the upper cover is also large, which is convenient for arranging the two elastic support arms.

[0142] In some specific embodiments of the present invention, the two first arms 180 can be connected to the insertion portion 140 at the same time, and the mounting portion 210 is a half-axis connecting the first arms 180 , and the two half-axes are located on the side close to or away from the two first arms 180 .

[0143] It is easy to understand that in this embodiment, by connecting the two first arm portions 180 to the insertion portion 140 at the same time, the two elastic support arms are connected into one part, which can reduce the number of parts.

[0144] In this embodiment, the mounting portion 210 is formed as a half-shaft connected to the first arm portion 180, and the two half-shafts are located on the adjacent side or the opposite side of the two first arms 180. Therefore, when the two half-shafts are inserted into the corresponding mounting holes, the first arm portion 180 will abut the mounting holes, preventing the half-shafts from falling out of the mounting holes. This reduces the need for additional limiting structures, thereby further simplifying the first component 100. For example, the enclosure 250 surrounding the elastic support member 120 can be omitted.

[0145] In some specific embodiments of the present invention, the two second arms 190 can be connected to the mounting portion 210 at the same time. The mounting portion 210 is a connecting shaft connecting the two second arms 190. The second component 110 is provided with a mounting hole for accommodating the rotation of the connecting shaft. The mounting hole is a semi-enclosed hole. The connecting shaft is pressed into the mounting hole from the missing part of the semi-enclosed hole.

[0146] It is easy to understand that in this embodiment, by setting the connecting shaft and the mounting hole, the mounting hole is made into a semi-enclosed hole. Therefore, the connecting shaft can be installed from the radial direction of the mounting hole, and there is less need to make the mounting portion 210 displace along the rotation axis of the first component 100, and there is less need to increase the specifications of the accommodating cavity 130 along the rotation axis of the first component 100.

[0147] At the same time, due to the internal support force provided by the elastic support member 120, the connecting shaft is unlikely to fall out of the missing portion of the semi-enclosed hole, thus not affecting its use. Furthermore, by properly arranging the orientation of the missing portion, the rotation range of the first component 100 is not affected, while the dimensional accuracy requirements of the missing portion can be reduced. For example, the width of the missing portion can be made close to the diameter of the mounting hole, making it easier for the connecting shaft to fit into the mounting hole. This reduces the need to narrow the missing portion to prevent it from falling out, which would increase the difficulty of fitting the connecting shaft into the mounting hole.

[0148] It should be noted that the provision of the connecting shaft and the semi-enclosed hole can also be considered as an embodiment in which the insertion portions 140 are provided at both ends of the elastic support member 120 and the recessed portion 150 is provided on the second component 110 .

[0149] Reference Figure 6 and Figure 7, in some specific embodiments of the present utility model, the first component 100 may include a first outer shell 220 and a first inner lining 230. The space between the first outer shell 220 and the first inner lining 230 is used to form an accommodation cavity 130. The inner surface of the first outer shell 220 is used to form a recess 150. The first outer shell 220 is provided with a platform 240 and a surrounding plate 250 extending along the contour of the platform 240. The space enclosed by the platform 240, the surrounding plate 250 and a part of the first outer shell 220 is used to form the recess 150.

[0150] It is easy to understand that in this embodiment, by providing the platform 240 and the surrounding plate 250 on the inner surface of the first outer shell 220, the recess 150 can be conveniently formed, which is convenient for production and manufacturing.

[0151] In some specific embodiments of the present utility model, the inner side of the surrounding plate 250 can be used to limit the elastic support arm. That is, the height of the surrounding plate 250 is increased to prevent the elastic support arm from moving away from the mounting hole and causing the half shaft to escape from the mounting hole.

[0152] In some specific embodiments of the present utility model, the inner surface of the first outer shell 220 can be provided with a guiding rib 260. During assembly, the guiding rib 260 abuts against the insertion part 140 to enable the insertion part 140 to enter the recess 150.

[0153] It is easy to understand that in this embodiment, by providing the guiding rib 260, during installation, the guiding rib 260 can abut against the insertion part 140 to realize the guiding of the insertion part 140, so that the insertion part 140 can smoothly enter the recess 150.

[0154] In some specific embodiments of the present utility model, a cavity can be provided on the side of the platform 240 connecting the first shell, and the guiding rib 260 is provided in the cavity, which not only meets the functional requirements, but also makes the wall thickness of the first shell uniform and meets the requirements of injection molding manufacturing.

[0155] In some specific embodiments of the present utility model, cross ribs, I-shaped ribs, and grid ribs can be provided inside the first shell to eliminate the side core pulling of the inner surface of the first shell and reduce the manufacturing difficulty.

[0156] The side core pulling of the inner surface of the first shell is used to form the bottom space of the platform 240. However, the internal space of the first shell is narrow. On the injection mold, a side core pulling of the inner surface of the first shell is provided, and the side core pulling direction is perpendicular to the demolding direction, which has a large manufacturing difficulty and strict space requirements.

[0157] In some specific embodiments of the present utility model, a recessed portion 150 can be formed on the outer surface of the first inner lining 230. The recessed portion 150 can be achieved by side core pulling on the outer surface of the first inner lining 230. There is sufficient space on the mold and the layout difficulty is low. However, the recessed portion 150 on the outer surface of the first inner lining 230 is likely to be a cantilever structure and the force it can withstand may be limited.

[0158] In some specific embodiments of the present utility model, both the first housing and the first inner lining 230 can be provided with ribs or plates, and the ribs and plates of the two intersect or cross each other to cooperate to form the recessed portion 150, which not only reduces the manufacturing difficulty but also meets the force-bearing requirements.

[0159] In some specific embodiments of the present utility model, the second component 110 can include a second outer shell 270, a second inner lining 280, and a connecting member 290 disposed between the second outer shell 270 and the second inner lining 280. The connecting member 290 has a protruding portion 300. The first component 100 is provided with a concave portion 310 for accommodating the protruding portion 300. The concave portion 310 is rotatably connected to the protruding portion 300 to achieve the rotational connection between the first component 100 and the second component 110. The elastic support member 120 is connected to the protruding portion 300 to achieve the connection between the elastic support member 120 and the second component 110.

[0160] It is easy to understand that in this embodiment, by providing the connecting member 290 with a protruding portion 300 and the first component 100 with a concave portion 310 for accommodating the protruding portion 300, and both the first component 100 and the elastic support member 120 are connected to the second component 110 through the protruding portion 300, the space occupied by the second component 110 is reduced, facilitating the arrangement of respective components in the second component 110. For example, arranging a battery, a circuit board, and a charging interface on the bottom shell of the earphone box.

[0161] And the connecting member 290 is located between the second outer shell 270 and the second inner lining 280, and the gap between the second outer shell 270 and the second inner lining 280 can be utilized without affecting the product appearance.

[0162] In some specific embodiments of the present utility model, the second outer shell 270 or the second inner lining 280 can be provided with a side plug pin 320, and the connecting member 290 is provided with a side socket for accommodating the side plug pin 320. The side plug pin 320 cooperates with the side socket to prevent the connecting member 290 from coming out between the second outer shell 270 and the second inner lining 280.

[0163] It is easy to understand that in this embodiment, by providing the side plug pin 320 and the side socket, the fixing of the connecting member 290 can be completed, improving the fixing strength. At the same time, screws are omitted, simplifying the assembly.

[0164] In some specific embodiments of the present utility model, the second housing 270 can be provided with a slot, and a side pin 320 is arranged in the slot. The side pin 320 is configured with a guiding inclined surface. Thus, when the connecting member 290 is inserted into the slot, due to the assistance of the guiding inclined surface, the side pin 320 enters the side jack, and the fixing of the connecting member 290 can be completed without installing the second lining 280 simultaneously.

[0165] In the description of this specification, the description with reference to the terms "one embodiment, some embodiments, illustrative embodiments, examples, specific examples or some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0166] The terms "first, second, third, fourth", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments described here can be implemented in an order other than that illustrated or described here.

[0167] It should also be noted that in the description of this specification, relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0168] In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may also include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0169] Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion. Thus, a process, method, article or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0170] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the scope of knowledge possessed by those of ordinary skill in the relevant art.

Claims

1. An opening and closing structure, characterized in that, It includes a first component (100) and a second component (110) that are rotatably connected, and further includes an elastic support member (120). The elastic support member (120) is connected to the second component (110). The first component (100) is provided with a receiving cavity (130) for receiving the elastic support member (120). One of the elastic support member (120) and the bottom of the receiving cavity (130) is provided with an insertion portion (140), and the other of the elastic support member (120) and the bottom of the receiving cavity (130) is provided with a recessed portion (150) for receiving the insertion portion (140). When the elastic support member (120) is inserted into the receiving cavity (130), the insertion portion (140) is inserted into the recessed portion (150), and the supporting force of the elastic support member (120) can make the insertion portion (140) abut against the recessed portion (150) to assist in opening or closing.

2. The opening and closing structure according to claim 1, wherein The elastic support member (120) is provided with the insertion portion (140), and the bottom of the receiving cavity (130) is provided with the recessed portion (150). The insertion portion (140) includes a first loop (160), and the first loop (160) is a semi-loop, a full loop or a spiral loop. The axis of the first loop (160) is parallel to the rotation axis of the first component (100), and the outer side of the first loop (160) is used to abut against the recessed portion (150); Alternatively, the insertion portion (140) includes at least two first loops (160). The first loops (160) are semi-loops, full loops or spiral loops. The first loops (160) are arranged along their own axes. The axis of the first loop (160) is parallel to the rotation axis of the first component (100), and the outer side of the first loop (160) is used to abut against the recessed portion (150). The insertion portion (140) further includes a connecting arm (170), and the connecting arm (170) connects two adjacent first loops (160).

3. The opening and closing structure according to claim 1, characterized in that, The elastic support member (120) is provided with the insertion portion (140), and the bottom of the receiving cavity (130) is provided with the recessed portion (150). The elastic support member (120) includes an elastic support arm. One end of the elastic support arm is provided with the insertion portion (140), and the other end of the elastic support arm is provided with a mounting portion (210) for connecting the second component (110). The elastic support arm includes a first arm portion (180) connecting the insertion portion (140), a second arm portion (190) connecting the mounting portion (210), and a first spiral (200) connecting the first arm portion (180) and the second arm portion (190). The axis of the first spiral (200) is parallel to the rotation axis of the first component (100).

4. The opening and closing structure according to claim 3, characterized in that The elastic support member (120) includes two such elastic support arms, and the two elastic support arms are arranged side by side; The two first arm portions (180) are simultaneously connected to the insertion portion (140), and the mounting portion (210) is a half shaft connecting the first arm portions (180). The two half shafts are located on one side close to or away from each other of the two first arm portions (180). Alternatively, the two second arm portions (190) are simultaneously connected to the mounting portion (210). The mounting portion (210) is a connecting shaft connecting the two second arm portions (190). The second component (110) is provided with a mounting hole for accommodating the rotation of the connecting shaft. The mounting hole is a semi-surrounding hole, and the connecting shaft is pressed into the mounting hole from the missing part of the semi-surrounding hole.

5. The opening and closing structure according to claim 1, characterized in that, The elastic support member (120) is provided with the insertion portion (140), and the bottom of the accommodating cavity (130) is provided with the recessed portion (150). The first component (100) includes a first outer shell (220) and a first inner lining (230). The space between the first outer shell (220) and the first inner lining (230) is used to provide the accommodating cavity (130). The inner surface of the first outer shell (220) is used to form the recessed portion (150). The first outer shell (220) is provided with a platform portion (240) and a surrounding plate (250) extending along the contour of the platform portion (240). The space surrounded by the platform portion (240), the surrounding plate (250) and a part of the first outer shell (220) is used to form the recessed portion (150).

6. The opening and closing structure according to claim 1, wherein The elastic support member (120) is provided with the insertion portion (140), and the bottom of the accommodating cavity (130) is provided with the recessed portion (150). The first component (100) includes a first outer shell (220) and a first inner lining (230). The space between the first outer shell (220) and the first inner lining (230) is used to provide the recessed portion (150). The inner surface of the first outer shell (220) is provided with a guiding rib (260). During assembly, the guiding rib (260) abuts against the insertion portion (140) to enable the insertion portion (140) to enter the recessed portion (150).

7. The opening and closing structure according to claim 1, characterized in that The second component (110) includes a second outer shell (270), a second inner lining (280), and a connecting member (290) disposed between the second outer shell (270) and the second inner lining (280). The connecting member (290) has a protruding portion (300). The first component (100) is provided with a concave portion (310) for accommodating the protruding portion (300). The concave portion (310) is rotatably connected to the protruding portion (300) to realize the rotational connection between the first component (100) and the second component (110). The elastic support member (120) is connected to the protruding portion (300) to realize the connection between the elastic support member (120) and the second component (110).

8. An opening and closing structure according to claim 7, wherein The second outer shell (270) or the second inner lining (280) is provided with side pins (320), and the connecting member (290) is provided with side jacks for accommodating the side pins (320). The side pins (320) cooperate with the side jacks to prevent the connecting member (290) from disengaging between the second outer shell (270) and the second inner lining (280).

9. A headphone case, characterized in that, It includes a bottom case and an upper cover, and the bottom case and the upper cover are connected by the opening and closing structure according to any one of claims 1 to 8.

10. An earphone case according to claim 9, characterized in that, The upper cover includes the first component (100), and the bottom case includes the second component (110).

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