Box body and earphone charging box

Abstract

The present invention provides a box body and an earphone charging box, the box body includes a shell assembly, an opening mechanism and a closing mechanism, the shell assembly includes a first shell and a second shell, and the first shell and the second shell have an extreme opening angle in the open state; the opening mechanism is connected to the shell assembly and is used to apply a repulsive force that causes the first shell and the second shell to move in opposite directions; the closing mechanism includes a first magnetic member connected to the first shell and a second magnetic member connected to the second shell, and there is a magnetic attraction force between the first magnetic member and the second magnetic member that causes the first shell and the second shell to move toward each other. When the first shell and the second shell need to be covered, the user only needs to cover the first shell and the second shell to less than the extreme opening angle, and the first shell and the second shell automatically move toward each other under the action of the magnetic attraction until the first shell and the second shell are covered, so that the user can cover the shell assembly more labor-saving.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical structures, and in particular relates to a box body and an earphone charging box. Background Art

[0002] Most boxes on the market include a first shell with an opening and a second shell that can cover the opening and is hinged to the first shell. In order to facilitate the opening of the first shell and the second shell, a spring-opening structure such as a torsion spring is usually provided to provide a driving force for the first shell and the second shell to separate, thereby saving manpower consumed in opening the first shell and the second shell. However, this will cause the problem that the first shell and the second shell are difficult to close, and after closing, the first shell and the second shell need to be fixed by a snap to prevent the two from springing open. This not only makes the closing of the two more laborious, but also increases the operating steps, resulting in inconvenience in use. Summary of the invention

[0003] The purpose of the present invention is to provide a box body and an earphone charging box, aiming to solve the technical problem in the prior art that the first shell and the second shell are difficult to close after the spring-opening structure is set.

[0004] The present invention is achieved in that a box body comprises:

[0005] A housing assembly, comprising a first housing and a second housing rotatably connected to the first housing, wherein the first housing and the second housing have a closed state in which they cover each other, and an open state in which they open each other, and wherein the first housing and the second housing have a limit opening angle in the open state;

[0006] an ejection mechanism, connected to the housing assembly and used to apply a repulsive force to the housing assembly to cause the first housing and the second housing to move away from each other;

[0007] The suction mechanism includes a first magnetic member connected to the first shell and a second magnetic member connected to the second shell, wherein the first magnetic member and the second magnetic member have a magnetic attraction force that causes the first shell and the second shell to move toward each other;

[0008] Among them, when the opening angle between the first shell and the second shell in the open state is greater than the limit opening angle, the repulsive force is greater than the magnetic attraction force, and when the opening angle between the first shell and the second shell in the open state is less than the limit opening angle, the repulsive force is less than the magnetic attraction force.

[0009] Furthermore, the limit opening angle is 10°.

[0010] Furthermore, the ejection mechanism is a torsion spring having one end connected to the first shell and the other end connected to the second shell.

[0011] Furthermore, the housing further comprises a connecting mechanism for connecting the first housing and the second housing, the connecting mechanism comprising a connecting block connected to the first housing, a limiting block connected to the connecting block, and a fixing block connected to the second housing and rotatably connected to the connecting block;

[0012] The connecting block has a first connecting surface, the limiting block is connected to the first connecting surface and extends outward, the fixing block has a second connecting surface arranged opposite to the first connecting surface, the fixing block is provided with a limiting groove for accommodating the limiting block on the second connecting surface, and the limiting groove has a rear end abutting surface;

[0013] In which, the limit block has a head end position when the first shell and the second shell are covered and a tail end position abutting against the tail end abutment surface when the first shell and the second shell are opened. When the limit block is located at the tail end position, an angle is formed between the first shell and the second shell, and the limit block can move between the head end position and the tail end position when the connecting block rotates relative to the fixed block.

[0014] Furthermore, the ejection mechanism includes a first acting member connected to the first shell and having magnetism, and a second acting member connected to the second shell and having magnetism. The first acting member and the second acting member have opposite magnetism and can provide the repulsive force.

[0015] Furthermore, the first shell has a first head end close to the connecting mechanism and a first tail end away from the connecting mechanism, the second shell has a second head end close to the connecting mechanism and a second tail end away from the connecting mechanism, the first active member is arranged at the first head end, the second active member is arranged at the second head end, the first magnetic member is arranged at the first tail end, and the second magnetic member is arranged at the second tail end.

[0016] Further, the pop-up mechanism includes a plurality of the first acting members and a plurality of the second acting members, one first acting member corresponds to one second acting member, and the suction mechanism includes a plurality of the first magnetic members and a plurality of the second magnetic members, one first magnetic member corresponds to one second magnetic member.

[0017] The present invention also provides an earphone charging box for placing earphones, the earphones having a charging jack, including a charging power supply, a charging plug electrically connected to the charging power supply, a storage cover connected to the second shell, and a box body as described above, the storage cover being used to accommodate a storage slot of the earphones, the storage cover and the second shell being arranged to form a accommodating cavity, the charging power supply being located in the accommodating cavity, the charging plug being arranged on the storage cover and being able to be inserted into the charging jack when the earphones are placed in the storage slot, so that the charging power supply can charge the earphones.

[0018] Furthermore, the earphone charging box also includes an adsorption member for adsorbing the earphone so that the charging plug is docked with the charging socket.

[0019] Furthermore, the earphone charging box also includes an indicator light electrically connected to the charging power supply, and the indicator light can be turned on when the charging plug is electrically connected to the earphone, and turned off when the charging plug is disconnected from the earphone.

[0020] The technical effect of the present invention relative to the prior art is as follows: the present invention applies a repulsive force to the shell assembly that enables the first shell and the second shell to move away from each other by setting a pop-up mechanism, and applies a magnetic attraction force to the shell assembly that enables the first shell and the second shell to move toward each other by setting a suction mechanism, so that the shell assembly is simultaneously subjected to two opposite forces, and there is a limit opening angle between the first shell and the second shell in the open state. When the first shell and the second shell need to be opened, the user only needs to open the first shell and the second shell to a point greater than the limit opening angle. At this time, the repulsive force is greater than the magnetic attraction force, and the first shell and the second shell automatically move away from each other under the action of the repulsive force, which allows the user to save more time and effort. The shell assembly can be opened by force. When the first shell and the second shell need to be switched from an open state to a closed state, the user only needs to cover the first shell and the second shell to a degree less than the limit opening angle. At this time, the magnetic attraction force is greater than the repulsion force, and the first shell and the second shell automatically move toward each other under the action of the magnetic attraction force until the first shell and the second shell are covered. In this way, the user can cover the shell assembly more effortlessly. When the first shell and the second shell are in the covered state, since the magnetic attraction force between the two is much greater than the repulsion force, the first shell and the second shell will not automatically pop open, and the positions of the first shell and the second shell can be fixed without having to set structures such as snaps for positioning, thereby reducing the operating steps and making it more convenient for users to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a three-dimensional structural member of the earphone charging box provided in an embodiment of the present invention;

[0023] Figure 2 It is a local structural component of the earphone charging box provided in an embodiment of the present invention;

[0024] Figure 3 is a cross-sectional view of an earphone charging box provided by an embodiment of the present invention;

[0025] Figure 4 It is an exploded view of the earphone charging box provided in an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 10. Shell assembly; 11. First shell; 12. Second shell; 20. Pop-up mechanism; 21. First action member; 22. Second action member; 31. First magnetic member; 32. Second magnetic member; 40. Connecting mechanism; 41. Connecting block; 4101. Mounting slot; 4102. Connecting hole; 411. Connecting body; 4111. Connecting part; 4112. Bending part; 42. Fixing block; 421. Adapter hole; 422. Limiting slot; 43. Limiting block; 412. Rotating shaft; 44. Connecting nail; 441. Nail body; 442. Nail cap; 50. Storage cover; 501. Storage slot; 60. Charging power supply; 70. Charging plug; 80. Indicator light; 90. Adsorption member DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] See also Figure 3 The present invention provides a box body, including a shell assembly 10, a pop-up mechanism 20, a suction mechanism and a connecting mechanism 40.

[0033] See also Figure 1 and Figure 3 The housing assembly 10 includes a first housing 11 and a second housing 12 rotatably connected to the first housing 11. The first housing 11 may be a box-shaped structure, and the second housing 12 may be a cover-shaped structure. The first housing 11 can cover the second housing 12. The first housing 11 and the second housing 12 have a closed state in which they cover each other, and an open state in which they open each other. The first housing 11 and the second housing 12 have a limit opening angle in the open state.

[0034] See also Figure 4 The ejection mechanism 20 is connected to the housing assembly 10 and is used to apply a repulsive force to the housing assembly 10 to make the first housing 11 and the second housing 12 move in opposite directions. The repulsive force can be an elastic force or magnetic attraction due to the properties of the structure itself, or a mechanical power converted from electrical energy or mechanical energy.

[0035] See also Figure 4 The suction mechanism includes a first magnetic member 31 connected to the first shell 11 and a second magnetic member 32 connected to the second shell 12. The first magnetic member 31 and the second magnetic member 32 have a magnetic force that causes the first shell 11 and the second shell 12 to move toward each other.

[0036] Among them, when the opening angle between the first shell 11 and the second shell 12 in the open state is greater than the limit opening angle, the repulsive force is greater than the magnetic attraction force, and when the opening angle between the first shell 11 and the second shell 12 in the open state is less than the limit opening angle, the repulsive force is less than the magnetic attraction force. Preferably, the limit opening angle is 10°, that is, when the angle between the first shell 11 and the second shell 12 is greater than 10°, the repulsive force is greater than the magnetic attraction force, and when the angle between the first shell 11 and the second shell 12 is less than 10°, the repulsive force is less than the magnetic attraction force.

[0037] The present invention applies a repulsive force to the shell assembly 10 that enables the first shell 11 and the second shell 12 to move away from each other by setting a pop-up mechanism 20, and applies a magnetic attraction force to the shell assembly 10 that enables the first shell 11 and the second shell 12 to move toward each other by setting a suction mechanism. In this way, the shell assembly 10 is simultaneously subjected to two opposite forces. There is a limit opening angle between the first shell 11 and the second shell 12 in the open state. When the first shell 11 and the second shell 12 need to be opened, the user only needs to open the first shell 11 and the second shell 12 to a point greater than the limit opening angle. At this time, the repulsive force is greater than the magnetic attraction force. The first shell 11 and the second shell 12 automatically move away from each other under the action of the repulsive force. In this way, the user can open the shell assembly 10 more labor-savingly. When it is necessary To switch the first shell 11 and the second shell 12 from an open state to a closed state, the user only needs to cover the first shell 11 and the second shell 12 to a value less than the maximum opening angle. At this time, the magnetic attraction force is greater than the repulsion force, and the first shell 11 and the second shell 12 automatically move toward each other under the action of the magnetic attraction force until the first shell 11 and the second shell 12 are covered. This allows the user to cover the shell assembly 10 more effortlessly. When the first shell 11 and the second shell 12 are in the covered state, since the magnetic attraction force between the two is much greater than the repulsion force, the first shell 11 and the second shell 12 will not automatically pop open, and the positions of the first shell 11 and the second shell 12 can be fixed without having to set structures such as snaps for positioning, thereby reducing the operating steps and making it more convenient for users to operate.

[0038] See also Figure 3 Furthermore, the connecting mechanism 40 is used to connect the first shell 11 and the second shell 12, and the connecting mechanism 40 includes a connecting block 41 connected to the first shell 11, a limiting block 43 connected to the connecting block 41, and a fixing block 42 connected to the second shell 12 and rotatably connected to the connecting block 41.

[0039] See also Figure 4The connecting block 41 has a first connecting surface, the limiting block 43 is connected to the first connecting surface and extends outward, the fixing block 42 has a second connecting surface arranged opposite to the first connecting surface, and the fixing block 42 is provided with a limiting groove 422 on its second connecting surface for accommodating the limiting block 43, and the limiting groove 422 has a tail end abutment surface.

[0040] Among them, the limit block 43 has a head end position when the first shell 11 and the second shell 12 are covered and a tail end position abutting against the tail end abutment surface when the first shell 11 and the second shell 12 are opened. When the limit block 43 is at the tail end position, the first shell 11 and the second shell 12 are set at an angle, and the limit block 43 can move between the head end position and the tail end position when the connecting block 41 rotates relative to the fixing block 42.

[0041] The connection mechanism 40 of the present invention is provided with a limit block 43 on the connection block 41 and a limit groove 422 for accommodating the limit block 43 on the fixed block 42. When the first shell 11 and the second shell 12 are covered, the limit block 43 is in the head end position. When the first shell 11 and the second shell 12 are opened and the limit block 43 abuts against the tail end abutment surface, the limit block 43 is in the tail end position. The limit block 43 can move between the head end position and the tail end position during the rotation of the connection block 41, that is, the tail end abutment surface is the movement end point of the limit block 43. In this way, the limit groove 422 limits the movement range of the limit block 43, and also limits the rotation angle between the first shell 11 and the second shell 12, preventing the edge of the first shell 11 from abutting against the outer wall surface of the second shell 12 during the rotation relative to the second shell 12, thereby avoiding the edge of the first shell 11 from curling and being damaged.

[0042] Preferably, the limiting groove 422 also has a head end abutment surface, and the limiting block 43 can abut against the head end abutment surface when it is in the head end position, and is located in the limiting groove 422 when the connecting block 41 rotates relative to the fixing block 42. The head end abutment surface is used to limit the head end position of the limiting block 43, so that the limiting block 43 can move between the head end position and the tail end position, preventing the first shell 11 and the second shell 12 from overlapping with each other, and playing a protective role for the first shell 11 and the second shell 12.

[0043] Preferably, the width of the limit groove 422 is adapted to the limit block 43 so that the limit block 43 and the limit groove 422 can be slidably connected. In this way, the limit groove 422 not only limits the limit block 43 but also guides it, thereby preventing the limit block 43 from shaking in the limit groove 422.

[0044] See also Figure 4Specifically, the connection block 41 includes a connection body 411 and a rotating shaft 412 connected to the first connection surface and extending outward, and the fixed block 42 is provided with a transfer hole 421 adapted to the rotating shaft 412 on its second connection surface, and the rotating shaft 412 can be inserted into the transfer hole 421 and rotate relative to the fixed block 42. The connection between the connection block 41 and the fixed block 42 is realized by the rotating shaft 412 and the transfer hole 421. When the first connection surface rotates relative to the second connection surface, the limit block 43 performs a circular motion with the rotating shaft 412 as the rotation axis, and the head end abutment surface and the tail end abutment surface are the conceptual end points of the motion. At this time, the limit groove 422 is arranged in an arc shape with a circumferential angle greater than 90° and less than 180°, so that when the second shell 12 is placed horizontally, the first shell 11 can be abutted against the tail end abutment surface by gravity after rotating 90°, without being covered again.

[0045] See also Figure 4 The connecting body 411 includes a connecting portion 4111 and a bending portion 4112 arranged at an angle to the connecting portion 4111, the bending portion 4112 is provided with a connecting hole 4102, and the connecting structure also includes a connecting nail 44 which is penetrated through the connecting hole 4102 and is used to connect the bending portion 4112 to the first shell 11, the connecting nail 44 includes a nail body 441 which is penetrated through the connecting hole 4102 and connected to the first shell 11, and a nail cap 442 which is connected to the nail body 441, the nail cap 442 can abut against the side of the bending portion 4112 away from the first shell 11 when the nail body 441 is connected to the first shell 11, the nail cap 442 is used to prevent the connecting nail 44 from falling out of the connecting hole 4102, and when the connecting nail 44 is in the installed state, the bending portion 4112 is located between the nail cap 442 and the first shell 11. The connecting pin 44 realizes the connection between the bending portion 4112 and the first shell 11, and thus realizes the connection between the first shell 11 and the second shell 12. The width of the connecting portion 4111 is used to adjust the distance between the first shell 11 and the second shell 12 so that the first shell 11 can rotate relative to the second shell 12 without collision.

[0046] See also Figure 4Preferably, the connecting portion 4111 is provided with a mounting groove 4101, the mounting groove 4101 extends toward the bending portion 4112 and is arranged along the extending direction thereof, and the connecting hole 4102 is located on the extension line of the mounting groove 4101. It can be understood that the extending direction of the mounting groove 4101 is in the same direction as the opening direction of the connecting hole 4102. The setting of the mounting groove 4101 also reduces the installation height of the connecting nail 44, shortens the width of the bending portion 4112, saves raw materials, and ensures that the first shell 11 and the second shell 12 can be aligned, so as not to cause the first shell 11 and the second shell 12 to be misaligned when covering due to the too high installation of the connecting nail 44. During installation, the user puts the connecting nail 44 into the mounting groove 4101, and pushes the connecting nail 44 into the connecting hole 4102 along the extending direction of the mounting groove 4101 to achieve connection with the first shell 11. The mounting groove 4101 plays a guiding role in the installation process of the connecting nail 44, which is convenient for the user to position.

[0047] Optionally, the pop-up mechanism 20 can be a torsion spring with one end connected to the first shell 11 and the other end connected to the second shell 12. The torsion spring can be elastically deformed when the first shell 11 and the second shell 12 move toward each other and generate an elastic restoring force that causes the first shell 11 and the second shell 12 to move in opposite directions. However, when the first shell 11 and the second shell 12 are opened at a large angle, the torsion spring will also generate an elastic restoring force that causes the first shell 11 and the second shell 12 to move toward each other, so that the first shell 11 and the second shell 12 cannot be opened at a large angle, which is inconvenient for users to use. To solve this problem, please refer to Figure 4 In the embodiment of the present invention, the ejection mechanism 20 is configured to include a first acting member 21 connected to the first housing 11 and having magnetism, and a second acting member 22 connected to the second housing 12 and having magnetism. The first acting member 21 and the second acting member 22 have opposite magnetism and can provide repulsive force. In this way, the first housing 11 and the second housing 12 can always have repulsive force, regardless of the angle between the two.

[0048] Preferably, the first shell 11 has a first head end close to the connecting mechanism 40 and a first tail end away from the connecting mechanism 40, the second shell 12 has a second head end close to the connecting mechanism 40 and a second tail end away from the connecting mechanism 40, the first active member 21 is arranged at the first head end, the second active member 22 is arranged at the second head end, the first magnetic member 31 is arranged at the first tail end, and the second magnetic member 32 is arranged at the second tail end. In this way, the magnetic attraction force has a larger variation range than the repulsive force. When the first shell 11 moves away from the second shell 12 and the angle between it and the second shell 12 is greater than 10 degrees, the magnetic attraction force between the first magnetic member 31 and the second magnetic member 32 decreases rapidly and is less than the repulsive force between the first acting member 21 and the second acting member 22, so that the first shell 11 and the second shell 12 are automatically closed; when the first shell 11 moves toward the second shell 12 and the angle between it and the second shell 12 is less than 10 degrees, the magnetic attraction force between the first magnetic member 31 and the second magnetic member 32 increases rapidly and is greater than the repulsive force between the first acting member 21 and the second acting member 22, so that the first shell 11 and the second shell 12 are automatically opened.

[0049] See also Figure 4 Further, the ejection mechanism 20 includes a plurality of first acting members 21 and a plurality of second acting members 22, one first acting member 21 corresponds to one second acting member 22, and the suction mechanism includes a plurality of first magnetic members 31 and a plurality of second magnetic members 32, one first magnetic member 31 corresponds to one second magnetic member 32. The plurality of first acting members 21 and the plurality of second acting members 22 can enhance the repulsive force between the first shell 11 and the second shell 12, and the plurality of first acting members 21 can be horizontally arranged and evenly symmetrically arranged in the first shell 11, and the plurality of second acting members 22 can be horizontally arranged and evenly symmetrically arranged in the second shell 12, and the plurality of first magnetic members 31 and the plurality of second magnetic members 32 can enhance the magnetic attraction between the first shell 11 and the second shell 12, and the plurality of first magnetic members 31 can be horizontally arranged and evenly symmetrically arranged in the first shell 11, and the plurality of second magnetic members 32 can be horizontally arranged and evenly symmetrically arranged in the second shell 12, so that the first shell 11 and the second shell 12 are subjected to uniform force, and the shell assembly 10 will not be locally deformed due to uneven force.

[0050] See also Figure 1 The present invention also provides an earphone charging box for placing earphones, the earphones have a charging jack, including a charging power source 60, a charging plug 70 electrically connected to the charging power source 60, a storage cover 50 connected to the second shell 12, and the box body provided in the above embodiments. The box body has the same structural features as the box bodies in the above embodiments, and the functions are the same, which will not be repeated here.

[0051] See also Figure 1The storage cover 50 is used to accommodate the storage slot 501 of the earphone. The storage cover 50 and the second shell 12 are arranged to form a receiving cavity. The charging power supply 60 is located in the receiving cavity. The charging plug 70 is arranged on the storage cover 50 and can be inserted into the charging jack when the earphone is placed in the storage slot 501, so that the charging power supply 60 can charge the earphone. In this way, the earphone charging box can not only load the earphone, but also charge the earphone through the charging power supply 60 during the installation process, which is convenient and fast. Preferably, the storage slot 501 is adapted to the shape of the earphone, so that the charging plug 70 can be accurately aligned with the charging jack.

[0052] For further information, see Figure 3 The earphone charging box also includes an adsorption member 90 for adsorbing the earphone so that the charging plug 70 is docked with the charging socket, and an indicator light 80 electrically connected to the charging power source 60. The adsorption member 90 can be a magnet, and a magnet or iron sheet corresponding to the position of the magnet can be set in the earphone to guide the connection between the charging plug 70 and the charging socket. The indicator light 80 can be turned on when the charging plug 70 is electrically connected to the earphone, and turned off when the charging plug 70 is disconnected from the earphone. The user can know the charging status of the earphone through the prompt of the indicator light 80.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A box body, characterized in that: include: A housing assembly, comprising a first housing and a second housing rotatably connected to the first housing, wherein the first housing and the second housing have a closed state in which they cover each other, and an open state in which they open each other, and wherein the first housing and the second housing have a limit opening angle in the open state; A spring-opening mechanism connected to the housing assembly and used to apply a repulsive force to the housing assembly to cause the first housing and the second housing to move away from each other, the spring-opening mechanism being a torsion spring having one end connected to the first housing and the other end connected to the second housing; The suction mechanism includes a first magnetic member connected to the first shell and a second magnetic member connected to the second shell, wherein the first magnetic member and the second magnetic member have a magnetic attraction force that causes the first shell and the second shell to move toward each other; Wherein, when the opening angle between the first shell and the second shell in the open state is greater than the limit opening angle, the repulsive force is greater than the magnetic attraction force, and when the opening angle between the first shell and the second shell in the open state is less than the limit opening angle, the repulsive force is less than the magnetic attraction force; The housing further comprises a connecting mechanism for connecting the first housing and the second housing, the connecting mechanism comprising a connecting block connected to the first housing, a limiting block connected to the connecting block, and a fixing block connected to the second housing and rotatably connected to the connecting block; The connecting block has a first connecting surface, the limiting block is connected to the first connecting surface and extends outward, the fixing block has a second connecting surface arranged opposite to the first connecting surface, the fixing block is provided with a limiting groove for accommodating the limiting block on the second connecting surface, and the limiting groove has a rear end abutting surface; The limit block has a head end position when the first shell and the second shell are covered and a tail end position against the tail end abutment surface when the first shell and the second shell are opened. When the limit block is at the tail end position, the first shell and the second shell are arranged at an angle, and the limit block can move between the head end position and the tail end position when the connecting block rotates relative to the fixing block. The connecting block includes a connecting body and a rotating shaft connected to the first connecting surface and extending outward. The fixing block is provided with an adapter hole adapted to the rotating shaft on the second connecting surface. The rotating shaft can be inserted into the adapter hole and rotate relative to the fixing block. The connecting body includes a connecting portion and a bending portion arranged at an angle to the connecting portion. The bending portion is provided with a connecting hole. The connecting mechanism also includes a connecting pin inserted into the connecting hole and used to connect the bending portion to the first shell. The width of the connecting portion is used to adjust the distance between the first shell and the second shell so that the first shell can rotate relative to the second shell without collision.

2. The box body according to claim 1, characterized in that: The limit opening angle is 10°.

3. The box body according to claim 1, characterized in that: The ejection mechanism includes a first acting member connected to the first shell and having magnetism, and a second acting member connected to the second shell and having magnetism. The first acting member and the second acting member have opposite magnetism and can provide the repulsive force.

4. The box body according to claim 3, characterized in that: The first shell has a first head end close to the connecting mechanism and a first tail end away from the connecting mechanism, the second shell has a second head end close to the connecting mechanism and a second tail end away from the connecting mechanism, the first active member is arranged at the first head end, the second active member is arranged at the second head end, the first magnetic member is arranged at the first tail end, and the second magnetic member is arranged at the second tail end.

5. The box body according to claim 4, characterized in that: The pop-up mechanism includes a plurality of the first acting members and a plurality of the second acting members, one first acting member corresponds to one second acting member, and the suction mechanism includes a plurality of the first magnetic members and a plurality of the second magnetic members, one first magnetic member corresponds to one second magnetic member.

6. An earphone charging box for placing earphones, the earphones having a charging jack, characterized in that: It includes a charging power supply, a charging plug electrically connected to the charging power supply, a storage cover connected to the second shell, and a box body as described in any one of claims 1 to 5, the storage cover is used to accommodate a storage slot of the earphone, the storage cover and the second shell are arranged to form a receiving cavity, the charging power supply is located in the receiving cavity, the charging plug is arranged on the storage cover and can be inserted into the charging jack when the earphone is placed in the storage slot, so that the charging power supply can charge the earphone.

7. The earphone charging box according to claim 6, characterized in that: The earphone charging box also includes an adsorption member for adsorbing the earphone so that the charging plug is docked with the charging socket.

8. The earphone charging box according to claim 6, characterized in that: The earphone charging box also includes an indicator light electrically connected to the charging power source, and the indicator light can be turned on when the charging plug is electrically connected to the earphone, and turned off when the charging plug is disconnected from the earphone.

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