CN219322548U - Hinge and wireless earphone charging box - Google Patents

Abstract

The application provides a hinge and wireless earphone box that charges, the hinge includes: the device comprises a mounting seat, a turnover piece, a shaft core, a fixed piece, a movable piece and an elastic piece, wherein the turnover piece is provided with a channel and a movable cavity communicated with the channel; the two ends of the shaft core are connected with the mounting seat and movably penetrate through the channel; the fixing piece is fixedly arranged on the shaft core; the movable piece is movably sleeved on the shaft core, is positioned in the movable cavity and can rotate along with the turnover piece; one of the fixed piece and the movable piece is provided with a first concave curved surface, and the other one is provided with a first convex curved surface; the elastic piece is positioned in the movable cavity and has a trend of driving the movable piece to move towards the direction of the fixed piece so as to enable the first convex curved surface to be matched with the first concave curved surface. The wireless earphone charging box comprises the hinge. The hinge of this application cooperatees with first concave curved surface through first protruding curved surface under the effect of elastic component, realizes locking the lid in the totally closed state to need not to additionally set up the structure of inhaling with lid closure magnetism, be favorable to reduction in production cost.

Description

Hinge and wireless earphone charging box

Technical Field

The application belongs to the technical field of wireless earphones, and more specifically relates to a hinge and a wireless earphone charging box.

Background

Headphones can be generally classified into wired headphones and wireless headphones. The wireless earphone is not limited by wires, so that the wireless earphone is convenient to wear, the wireless earphone is popular with wide users, particularly a real wireless stereo earphone (True WirelessStereo, TWS), namely TWS earphone, which is equipment for transmitting stereo signals based on the Bluetooth technology, namely, the left earphone and the right earphone receive the stereo signals from playing equipment such as a mobile phone and the like through Bluetooth under the condition of no wire connection, and playback is realized.

The wireless earphone is generally matched with a charging box, and the charging box has the function of accommodating the wireless earphone on one hand and has the function of charging the wireless earphone on the other hand. The common wireless earphone charging box is generally in a flip-type structure, and the charging box is opened or closed by turning the box cover. But at present, the wireless earphone charging box is generally covered by arranging a magnetic attraction structure, so that the magnetic attraction structure is required to be assembled on the wireless earphone charging box in the process of producing the wireless earphone charging box, a large amount of manpower and material resources are required to be consumed, and the production cost is high.

Disclosure of Invention

An object of the embodiment of the application is to provide a hinge and wireless earphone charging box to solve the wireless earphone charging box that exists among the prior art and generally close the lid through setting up the magnetism and inhale the structure, thereby in the production wireless earphone charging box in-process, need assemble magnetism on wireless earphone charging box and inhale the structure, need consume a large amount of manpower and materials, lead to manufacturing cost's technical problem.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows: provided is a hinge including: the device comprises a mounting seat, a turnover piece, a shaft core, a fixed piece, a movable piece and an elastic piece, wherein the turnover piece is provided with a channel and a movable cavity communicated with the channel; the two ends of the shaft core are connected with the mounting seat and movably penetrate through the channel; the fixing piece is fixedly arranged on the shaft core and at least partially positioned in the movable cavity; the movable piece is movably sleeved on the shaft core, is positioned in the movable cavity and can rotate along with the turnover piece; one of the fixed piece and the movable piece is provided with a first concave curved surface, and the other one is provided with a first convex curved surface; the elastic piece is positioned in the movable cavity and has a tendency of driving the movable piece to move towards the direction of the fixed piece, so that the first convex curved surface is matched with the first concave curved surface.

The beneficial effect of the hinge that this application provided lies in: compared with the prior art, the mounting seat of hinge is connected with the box body, and the upset piece is connected with the lid, and when the lid was in the complete closed state, first protruding curved surface cooperatees with first concave curved surface under the effect of elastic component, and when opening the lid this moment, the elasticity of compression spring need be overcome, just can open the lid for the lid is difficult for opening, realizes locking the lid in the complete closed state, thereby does not need to additionally set up the structure of inhaling with lid closed magnetism, is favorable to saving the resource, and has omitted the process of equipment magnetism structure of inhaling, is favorable to saving the labour, thereby is favorable to reducing manufacturing cost, improves production efficiency.

Optionally, one of the fixed part and the movable part is provided with a second convex curved surface, and the other one is provided with a second concave curved surface, and when the first convex curved surface is matched with the first concave curved surface, the second convex curved surface is matched with the second concave curved surface.

Optionally, the first concave curved surface and the second convex curved surface are both arranged on the fixed piece, and the first convex curved surface and the second concave curved surface are both arranged on the movable piece; or, the first concave curved surface and the second convex curved surface are both arranged on the movable piece, and the first convex curved surface and the second concave curved surface are both arranged on the fixed piece.

Optionally, the number of the first concave curved surface, the first convex curved surface, the second convex curved surface and the second concave curved surface is multiple, multiple first concave curved surfaces and multiple second convex curved surfaces are staggered along the circumferential direction of the fixing piece, and multiple first convex curved surfaces and multiple second concave curved surfaces are staggered along the circumferential direction of the movable piece.

Optionally, the mounting seat is provided with a mounting groove and two shaft holes, the two shaft holes are respectively located at two ends of the mounting seat and are communicated with the mounting groove, the overturning piece is at least partially accommodated in the mounting groove, and two ends of the shaft core are respectively inserted into the two shaft holes.

Optionally, the overturning piece is provided with a chute on the inner wall of the movable cavity, the chute extends along the axial direction of the shaft core, the fixing piece is provided with a guiding part, and the guiding part is slidably clamped in the chute.

Optionally, the turnover piece includes connecting block and switching piece that links to each other, the activity chamber with the passageway is seted up on the connecting block, when the turnover piece rotated to first extreme position, the contained angle between switching piece and the horizontal direction was 93-95, when the turnover piece rotated to second extreme position, the contained angle between switching piece and the vertical direction was 85-87.

Optionally, the elastic component is a coil spring and movably sleeved on the shaft core, one end of the elastic component is abutted to one end of the movable component, which is far away from the fixed component, and the other end of the elastic component is abutted to the inner wall of the movable cavity by the overturning component.

The application also provides a wireless earphone charging box, which comprises a box body, a box cover and any hinge, the mounting seat is connected with the box body, and the overturning piece is connected with the box cover.

Optionally, a yielding groove is formed in the side wall of the box body, and the mounting seat is accommodated in the yielding groove.

The wireless earphone charging box that this application provided's beneficial effect lies in: compared with the prior art, this wireless earphone charging box of application, the mount pad and the box body of hinge are connected, the upset piece is connected with the lid, when the lid is in the complete closed state, first protruding curved surface cooperatees with first concave curved surface under the effect of elastic component, when opening the lid this moment, need overcome compression spring's elasticity, just can open the lid for the lid is difficult for opening, realizes locking the lid in the complete closed state, thereby does not need to additionally set up the structure of inhaling with lid closed magnetism, is favorable to saving the resource, and has omitted the process of equipment magnetism structure of inhaling, is favorable to saving the labour, thereby is favorable to reducing manufacturing cost, improves production efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a closed state of a cover of a wireless earphone charging box according to an embodiment of the present application;

fig. 2 is a schematic diagram of an open state of a cover of a wireless earphone charging box according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a hinge according to an embodiment of the present disclosure;

FIG. 4 is an exploded view of the hinge shown in FIG. 3;

FIG. 5 is a cross-sectional view of the hinge shown in FIG. 3;

FIG. 6 is a schematic view of the hinge shown in FIG. 3 with the mounting base and flip omitted;

fig. 7 is a second schematic structural diagram of the hinge according to the embodiment of the present application;

fig. 8 is a schematic structural view of a hinge according to an embodiment of the present disclosure.

The main reference numerals illustrate:

10. a case body; 11. earphone accommodation groove; 12. a charging interface; 13. a relief groove; 20. a box cover; 21. a positioning groove; 30. a hinge; 31. a mounting base; 311. a mounting groove; 312. a shaft hole; 313. a clamping groove; 314. an angle limiting groove; 32. a turnover piece; 321. a channel; 322. a movable cavity; 323. a chute; 324. a connecting block; 325 a transfer block; 326. a through hole; 327. a limiting block; 33. a shaft core; 331. a clamping block; 34. a fixing member; 341. a first concave curved surface; 342. a second convex curved surface; 35. a movable member; 351. a first convex curved surface; 352. a second concave curved surface; 353. a guide part; 354. penetrating holes; 36. an elastic member; 37. a buffer block; 371. and positioning columns.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 8, a wireless earphone charging box according to an embodiment of the present application will be described.

Referring to fig. 1 and 2, the wireless earphone charging box includes a box body 10, a box cover 20 and a hinge 30, wherein the hinge 30 connects the box body 10 and the box cover 20, so that the box cover 20 can be turned over relative to the box body 10, and the box cover 20 can be closed or opened.

The box body 10 is provided with an earphone accommodating groove 11, and the earphone accommodating groove 11 is used for accommodating wireless earphones. The charging assembly is arranged in the box body 10, and when the wireless earphone is placed in the earphone accommodating groove 11, the charging assembly can charge the wireless earphone in the earphone accommodating groove 11. The box body 10 is also provided with a charging interface 12, and the charging assembly can be charged through the charging interface 12.

In another embodiment of the present application, a sidewall of the box 10 is provided with a yielding groove 13, the yielding groove 13 penetrates through an inner surface and an outer surface of the sidewall of the box 10, and the yielding groove 13 is used for accommodating the hinge 30.

The cover 20 is rotatably connected with the case body 10 through a hinge 30, and the cover 20 is used to close or open the earphone receiving groove 11 of the case body 10.

In another embodiment of the present application, the lid 20 is provided with a positioning slot 21, when the lid 20 is closed, the positioning slot 21 faces the case body 10, and the positioning slot 21 is used for positioning the hinge 30.

Referring to fig. 3 to 5, the hinge 30 includes a mounting seat 31, a turnover member 32, a shaft core 33, a fixing member 34, a movable member 35 and an elastic member 36, wherein the turnover member 32 is provided with a channel 321 and a movable cavity 322 communicating with the channel 321; both ends of the shaft core 33 are connected with the mounting seat 31 and movably penetrate through the channel 321. The fixing member 34 is fixedly disposed on the shaft core 33 and at least partially disposed in the movable cavity 322. The movable member 35 is movably sleeved on the shaft core 33, is positioned in the movable cavity 322, and can rotate along with the turnover member 32. One of the fixed member 34 and the movable member 35 is provided with a first concave curved surface 341, and the other of the fixed member 34 and the movable member 35 is provided with a first convex curved surface 351. The elastic member 36 is located in the movable cavity 322 and has a tendency to drive the movable member 35 to move toward the fixed member 34, so that the first convex curved surface 351 is matched with the first concave curved surface 341, and the lid 20 is stably closed on the case 10.

Specifically, when the lid 20 is closed, during the process of rotating the turnover member 32, the movable member 35 rotates synchronously with the turnover member 32, and the movable member 35 moves towards the direction close to the fixed member 34 under the action of the elastic member 36, so that the first convex curved surface 351 gradually contacts with the first concave curved surface, when the lid 20 is in a fully closed state, i.e., the lid 20 is fully closed on the box body 10, the first convex curved surface 351 is matched with the first concave curved surface 341 under the action of the elastic member 36, i.e., the first convex curved surface 351 is fully attached to the first concave curved surface 341, and when the lid 20 is opened, a certain force needs to be applied to overcome the elasticity of the compression spring, so that the first convex curved surface 351 gradually breaks away from the first concave curved surface 341, and the lid 20 is not easy to open, thereby realizing locking the lid 20 in the fully closed state.

Further, referring to fig. 4 and 6, one of the fixed member 34 and the movable member 35 is provided with a second convex curved surface 342, and the other of the fixed member 34 and the movable member 35 is provided with a second concave curved surface 352. When the first convex curved surface 351 is mated with the first concave curved surface 341, the second convex curved surface 342 is mated with the second concave curved surface 352.

In the present embodiment, the first concave curved surface 341 and the second convex curved surface 342 are both disposed on the fixed member 34, and the first concave curved surface 352 and the second concave curved surface 352 are both disposed on the movable member 35. In another embodiment, the first concave curved surface 341 and the second convex curved surface 342 may be disposed on the movable member 35, and the first concave curved surface 352 and the second concave curved surface 352 may be disposed on the fixed member 34. It will be appreciated that when the lid 20 is in the fully closed state, the first convex curved surface 351 is engaged with the first concave curved surface 341, and the second convex curved surface 342 is engaged with the second concave curved surface 352, i.e. the movable member 35 is engaged with the fixed member 34, which is beneficial to improving the stability of locking the lid 20 in the fully closed state.

Further, the number of the first concave curved surface 341, the first convex curved surface 351, the second convex curved surface 342 and the second concave curved surface 352 is plural, the first concave curved surface 341 and the second convex curved surface 342 are staggered along the circumferential direction of the fixed member 34, and the first convex curved surface 351 and the second concave curved surface 352 are staggered along the circumferential direction of the movable member 35. Specifically, when the cover 20 is completely closed or completely opened, the first convex curved surface 351 is respectively attached to the first concave curved surface 341, and the second convex curved surface 342 is attached to the first concave curved surface 341.

When the lid 20 is required to be opened, the lid 20 is rotated in a first direction, when the lid 20 is rotated in the first direction, the turning member 32 and the movable member 35 are driven to synchronously rotate in the first direction, when the movable member 35 is rotated in the first direction, the first convex curved surface 351 is gradually separated from the corresponding first concave curved surface 341, the second convex curved surface 342 is gradually separated from the corresponding second concave curved surface 352, the movable member 35 is moved in a direction away from the fixed member 34, the elastic member 36 is compressed, when the first convex curved surface 351 is completely separated from the corresponding first concave curved surface 341, the second convex curved surface 342 is completely separated from the corresponding second concave curved surface 352, if the turning member 32 is continuously rotated in the first direction, the movable member 35 is moved in a direction close to the movable member 35 under the elastic force of the elastic member 36, the first convex curved surface 351 is gradually contacted with the adjacent first concave curved surface 341, the second convex curved surface 342 is gradually contacted with the adjacent second concave curved surface 352, when the lid 20 is completely opened, the turning member 32 is rotated to a first limit position, the first convex curved surface is completely attached to the adjacent first concave curved surface 341, and the second concave curved surface 342 is completely attached to the adjacent second concave curved surface 352, and the lid 20 is completely locked by the user in a completely opened state.

Similarly, when the lid 20 needs to be closed, the lid 20 is rotated in the second direction, the second direction is opposite to the first direction, when the lid 20 is rotated in the second direction, the turning member 32 and the movable member 35 are driven to synchronously rotate in the second direction, when the movable member 35 is rotated in the second direction, the first convex curved surface 351 gradually breaks away from the corresponding first concave curved surface 341, the second convex curved surface 342 gradually breaks away from the corresponding second concave curved surface 352, the movable member 35 moves in a direction away from the fixed member 34, the elastic member 36 compresses, when the first convex curved surface 351 is completely separated from the corresponding first concave curved surface 341, the second convex curved surface 342 gradually moves away from the corresponding second concave curved surface 352 in the second direction, if the turning member 32 continues to rotate in the second direction, the movable member 35 moves towards the direction close to the movable member 35 under the elastic force of the elastic member 36, so that the first convex curved surface 351 gradually contacts with the first concave curved surface 341, the second convex curved surface 342 gradually contacts with the second concave curved surface 352, when the lid 20 is completely closed, the turning member 32 rotates to the second convex curved surface 351 is easily to the second concave curved surface 352, and the first curved surface 342 is completely attached to the first concave curved surface 352 before the lid 20 is completely closed, and the first curved surface 342 is completely closed, and the lid 20 is completely closed.

In one embodiment of the present application, please refer to fig. 1 and 3 together, the mounting seat 31 is accommodated in the mounting groove 311. Through with mount pad 31 holding in mounting groove 311, make mount pad 31 become the part of box body 10 lateral wall, avoid mount pad 31 to occupy extra space, be favorable to realizing that earphone charges the box miniaturization. Alternatively, the mounting 31 may be glued to the case 10. Or, the mounting seat 31 is engaged with the case 10. Or, the mounting seat 31 is connected with the box body 10 by screws, and the fixing mode between the mounting seat 31 and the box body 10 is not limited.

In an embodiment of the present application, referring to fig. 4 and 5, a mounting groove 311 and two shaft holes 312 are provided on a mounting seat 31, the two shaft holes 312 are respectively located at opposite ends of the mounting seat 31 and are communicated with the mounting groove 311, a turnover member 32 is at least partially accommodated in the mounting groove 311, and opposite ends of a shaft core 33 are respectively inserted into the two shaft holes 312, so that the turnover member 32 can rotate in the mounting groove 311.

Further, the mounting seat 31 is further provided with a clamping groove 313, the clamping groove 313 is communicated with the shaft hole 312, the shaft core 33 is provided with a clamping block 331, and the clamping block 331 is clamped in the clamping groove 313. Through establishing screens piece 331 card in the screens groove 313, prevent effectively that axle core 33 from following flip piece 32 rotation, effectively guarantee the complex stability between mounting 34 and the moving part 35.

In the present embodiment, the number of the locking grooves 313 and the locking blocks 331 is one, and the locking grooves 313 are disposed on one end of the mounting base 31, penetrate through one end of the mounting base 31, and are communicated with one of the shaft holes 312, and the locking blocks 331 are disposed on one end of the shaft core 33. In other embodiments, the number of the clamping grooves 313 and the clamping blocks 331 may be two or more, for example, when the number of the clamping grooves 313 and the clamping blocks 331 is two, the two clamping grooves 313 are respectively located at two ends of the mounting seat 31 and respectively communicate with the two shaft holes 312, and the two clamping blocks 331 are respectively disposed at two opposite ends of the shaft core 33 and respectively clamped in the two clamping grooves 313. By arranging two or more clamping grooves 313 and clamping blocks 331, the stability of connection between the shaft core 33 and the mounting seat 31 is enhanced, and meanwhile, the shaft core 33 is further prevented from rotating along with the turnover piece 32, so that the stability of cooperation between the fixed piece 34 and the movable piece 35 is further ensured.

In the present embodiment of the present utility model, in the present embodiment, the shaft core 33, the fixing member 34 and the retaining block 331 are integrally formed. Of course, in other embodiments, the shaft core 33, the fixing member 34 and the clamping block 331 may be formed separately, and then the formed fixing member 34 and clamping block 331 are fixedly connected to the shaft core 33.

In an embodiment of the present application, referring to fig. 4 and 5, the turning member 32 is provided with a chute 323 on an inner wall of the movable cavity 322, the chute 323 extends along an axial direction of the shaft core 33, the fixing member 34 is provided with a guiding portion 353, and the guiding portion 353 is slidably clamped in the chute 323. The guide portion 353 is slidably clamped in the sliding groove 323, so that the movable member 35 can synchronously rotate along with the turnover member 32, and the movable member 35 is allowed to move along the axial direction of the shaft core 33 relative to the turnover member 32 so as to approach or depart from the fixed member 34, and further the first convex curved surface 351 is matched with or separated from the first concave curved surface 341, and the second convex curved surface 342 is matched with or separated from the second concave curved surface 352.

Optionally, the number of the sliding grooves 323 is two, the two sliding grooves 323 are respectively formed on the inner walls of the turnover piece 32 on two opposite sides of the movable cavity 322, the number of the guiding portions 353 is also two, the two guiding portions 353 are respectively arranged on the outer walls of two opposite sides of the movable cavity, and the two guiding portions 353 are respectively and slidably clamped in the two sliding grooves 323. Two sliding grooves 323 are formed in the inner wall of the movable cavity 322 through the turnover piece 32, and two guide parts 353 are arranged on the movable piece 35, so that the stability of the movement of the movable piece 35 is improved.

In one embodiment of the present application, referring to fig. 4, the turning piece 32 includes a connecting block 324 and a adapting block 325 connected to each other, the turning piece 32 is generally L-shaped, the movable cavity 322 and the channel 321 are opened on the connecting block 324, the connecting block 324 is rotationally connected with the mounting base 31 through the shaft core 33, and the adapting block 325 is connected with the side face of the box body 10 facing the box cover 20 when being closed.

Optionally, the adapter 325 is received in the positioning slot 21 and glued or screwed to the lid 20.

It should be noted that, when the turnover member 32 rotates to the first limit position, the included angle a between the adapting block 325 and the horizontal direction is 93 ° -95 °, as shown in fig. 7, and when the turnover member 32 rotates to the first limit position, the lid 20 is in the fully opened state, so that the lid 20 has a pre-pressing angle of 3 ° -5 °, and the lid 20 can be better locked in the fully opened state. When the turnover member 32 is rotated to the second limit position, the included angle b between the adapter 325 and the vertical direction is 85 ° -87 °, as shown in fig. 8, and when the turnover member 32 is rotated to the second limit position, the lid 20 is in the fully closed state, so that the lid 20 has a pre-compression angle of 3 ° -5 °, and the lid 20 can be better locked in the closed state.

In this application, be equipped with angle spacing groove 314 on the mount pad 31, angle spacing groove 314 and mounting groove 311 intercommunication are provided with stopper 327 on the upset piece 32, and stopper 327 activity sets up in angle spacing groove 314, and when upset piece 32 rotated to first extreme position, stopper 327 and mount pad 31 in the inner wall butt of angle spacing groove 314 one side. When the turnover piece 32 rotates to the second limit position, the limiting block 327 is abutted against the inner wall of the mounting seat 31 at the other side of the angle limiting groove 314. Through the cooperation of stopper 327 and angle limiting groove 314, the upset piece 32 is rotated and is fixed a position when first extreme position and second extreme position, makes the lid can be in the state of fully opening or closing better.

Further, the number of the angle limiting grooves 314 is two, the two angle limiting grooves 314 are respectively located at two ends of the mounting groove 311, the number of the limiting blocks 327 is two, and the two limiting blocks 327 are respectively located at two ends of the connecting block 324.

Referring to fig. 5, the movable member 35 is provided with a through hole 354, and the movable member 35 is movably sleeved on the shaft core 33 through the through hole 354.

In one embodiment of the present application, the elastic member 36 is a coil spring and is movably sleeved on the shaft core 33, one end of the elastic member 36 abuts against one end of the movable member 35 away from the fixed member 34, and the other end of the elastic member 36 abuts against the inner wall of the movable cavity 322 of the turnover member 32.

In one embodiment of the present application, referring to fig. 3 and 4, the hinge 30 further includes a buffer block 37, where the buffer block 37 is disposed on a side of the adaptor facing away from the lid 20, and the buffer block 37 contacts the case 10 when the lid 20 is closed. By being provided in the buffer block 37, the hinge block 325 is effectively prevented from being strongly impacted with the case body 10 when the cover 20 is closed.

Specifically, the adapter block 325 is provided with a through hole 326, and the buffer block 37 is provided with a positioning column 371, and the positioning column 371 passes through the through hole 326 and is connected with the adapter block 325.

The wireless earphone charging box of this application, hinge 30's mount pad 31 is connected with box body 10, flip piece 32 is connected with lid 20, when lid 20 is in the complete closed state, first protruding curved surface 351 cooperatees with first concave curved surface 341 under the effect of elastic component 36, when opening lid 20 this moment, need overcome compression spring's elasticity, just can open lid 20 for lid 20 is difficult for open, realize locking lid 20 in the complete closed state, thereby need not additionally set up with lid 20 closed magnetism inhale the structure, be favorable to saving the resource, and omitted the process of equipment magnetism inhale the structure, be favorable to saving the labour, thereby be favorable to reducing manufacturing cost, and improvement production efficiency.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims (10)

1. A hinge, comprising: the device comprises a mounting seat, a turnover piece, a shaft core, a fixed piece, a movable piece and an elastic piece, wherein the turnover piece is provided with a channel and a movable cavity communicated with the channel; the two ends of the shaft core are connected with the mounting seat and movably penetrate through the channel; the fixing piece is fixedly arranged on the shaft core and at least partially positioned in the movable cavity; the movable piece is movably sleeved on the shaft core, is positioned in the movable cavity and can rotate along with the turnover piece; one of the fixed piece and the movable piece is provided with a first concave curved surface, and the other one is provided with a first convex curved surface; the elastic piece is positioned in the movable cavity and has a tendency of driving the movable piece to move towards the direction of the fixed piece, so that the first convex curved surface is matched with the first concave curved surface.

2. The hinge according to claim 1, wherein: one of the fixed piece and the movable piece is provided with a second convex curved surface, the other one is provided with a second concave curved surface, and when the first convex curved surface is matched with the first concave curved surface, the second convex curved surface is matched with the second concave curved surface.

3. The hinge according to claim 2, wherein: the first concave curved surface and the second convex curved surface are both arranged on the fixed piece, and the first convex curved surface and the second concave curved surface are both arranged on the movable piece; or, the first concave curved surface and the second convex curved surface are both arranged on the movable piece, and the first convex curved surface and the second concave curved surface are both arranged on the fixed piece.

4. A hinge as claimed in claim 3, wherein: the number of the first concave curved surfaces, the first convex curved surfaces, the second convex curved surfaces and the second concave curved surfaces is multiple, the first concave curved surfaces and the second convex curved surfaces are arranged in a staggered mode along the circumferential direction of the fixed piece, and the first convex curved surfaces and the second concave curved surfaces are arranged in a staggered mode along the circumferential direction of the movable piece.

5. The hinge according to claim 1, wherein: the mounting seat is provided with a mounting groove and two shaft holes, the two shaft holes are respectively positioned at two ends of the mounting seat and communicated with the mounting groove, the overturning piece is at least partially accommodated in the mounting groove, and two ends of the shaft core are respectively inserted into the two shaft holes.

6. The hinge according to claim 1, wherein: the turnover part is provided with a chute on the inner wall of the movable cavity, the chute extends along the axial direction of the shaft core, the fixing part is provided with a guide part, and the guide part is slidably clamped in the chute.

7. The hinge according to claim 1, wherein: the turnover piece comprises a connecting block and a switching block which are connected, the movable cavity and the channel are formed in the connecting block, when the turnover piece rotates to a first limit position, the included angle between the switching block and the horizontal direction is 93-95 degrees, and when the turnover piece rotates to a second limit position, the included angle between the switching block and the vertical direction is 85-87 degrees.

8. The hinge according to claim 1, wherein: the elastic piece is a spiral spring and is movably sleeved on the shaft core, one end of the elastic piece is abutted to one end of the movable piece, which is far away from the fixed piece, and the other end of the elastic piece is abutted to the inner wall of the movable cavity by the overturning piece.

9. A wireless earphone charging box, which is characterized by comprising a box body, a box cover and a hinge according to any one of claims 1-8, wherein the mounting seat is connected with the box body, and the turnover piece is connected with the box cover.

10. The wireless headset charging box of claim 9, wherein: the side wall of the box body is provided with a yielding groove, and the mounting seat is accommodated in the yielding groove.

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