Headset

Abstract

The invention discloses a headphone, and relates to the related technical field of earphones, the headphone comprises an ear hook and two ear shells, each ear shell is externally provided with an earmuff part, each ear shell is also provided with an adjusting mechanism for adjusting the size of the earmuff part, the adjusting mechanism is provided with a plurality of clamping grooves along the circumferential direction, each ear shell is provided with a group of clamping blocks in a sliding manner, and the clamping blocks are clamped in the clamping grooves. A first elastic piece is arranged between each clamping block and the ear shell, each clamping block is inserted into any clamping groove to lock the position of the size-adjusted earmuff part based on the elastic force effect of the first elastic piece, a connecting groove is formed in the ear shell, a connecting block is movably arranged in the connecting groove, and the end part of the ear hook is connected with the connecting block; the parts, corresponding to the clamping blocks, of the ear shells are provided with abutting blocks in a sliding mode, one end of each first elastic piece is fixedly connected to the corresponding clamping block, and the other end of each first elastic piece is fixedly connected to the corresponding abutting block. When the earphone is worn, the connecting block extrudes the abutting block to abut against the clamping block in the direction close to the earmuff part in the connecting groove based on the elastic force effect of the ear hook.

Description

Technical Field

[0001] The present invention relates to the technical field of earphones, in particular to a headphone. Background Art

[0002] As is known to all, headphones refer to headphones that are worn on the wearer's head without being inserted into the ear canal. Their main structure includes an arc-shaped ear hook, with two ear shells connected by a hinge structure at both ends of the ear hook. An earmuff is also arranged on each ear shell, and the ear hook provides elastic force for the two ear shells to approach each other so that the headphones can be clamped on the wearer's head.

[0003] In the prior art, when the headphones are in use, the size of the earmuffs cannot be adjusted, resulting in the wearer's inability to adapt to the ears when in use. To solve this problem, a solution is proposed in a patent with announcement number CN117156344B, announcement date January 26, 2024, and name "A head-mounted noise-cancelling headphone with ear slot adjustment function", that is, a head-mounted noise-cancelling headphone with ear slot adjustment function, including an ear hook, a cavity, a back cavity, a fixed groove, a drive unit speaker and an electroacoustic conversion device, the cavity is movably connected to both sides of the bottom of the ear hook, the back cavity is fixedly connected to the right side of the cavity, and the fixed groove is opened on the right side of the inner wall of the back cavity. The present invention sets an ear hook to limit the cavity by the ear hook to prevent the cavity from falling off, then protects the outside of the cavity by the back cavity, and then converts the electrical signal into an audio signal by the electroacoustic conversion device, which is played by the driving unit speaker, and then the size of the ear groove can be adjusted by the ear groove adjustment mechanism when wearing, thereby solving the problem that the existing head-mounted noise reduction headphones cannot adjust the size of the elastic earmuffs when in use, resulting in the inability to adapt to ears of different sizes when in use, and when the ears are large, the size of the elastic earmuffs cannot be adjusted to adapt to ears of different sizes.

[0004] The deficiency of the above-mentioned prior art is that when adjusting the size of the ear slot, the adjusting ring is rotated, and the adjusting ring drives the slot to rotate, so that the slot squeezes the protrusion into the movable slot. The position is locked after the size of the ear slot is adjusted. After the rotation stops, the block is pushed by a spring to engage with the slot, thereby limiting the position of the adjusting ring. Obviously, with this locking method, when the adjusting ring or some parts related to the ear slot are accidentally touched, the adjusting ring rotates, thereby causing the ear slot to change in size again after the adjustment. Summary of the invention

[0005] The purpose of the present invention is to provide a headset to solve the technical problems in the related art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: A headset, comprising an ear hook and two ear shells, each ear shell being provided with an earmuff part outside, and an adjustment mechanism for adjusting the size of the earmuff part being provided on the ear shell, a plurality of slots being arranged circumferentially on the adjustment mechanism, a group of clips being slidably provided on each ear shell, and a first elastic member being provided between each clip block and the ear shell, and each clip block being plugged into any clip slot to lock the position of the earmuff part after the size is adjusted based on the elastic force of the first elastic member, a connecting slot being provided on the ear shell, a connecting block being movably provided in the connecting slot, and an end of the ear hook being connected to the connecting block; an abutting block being slidably provided at a portion of the ear shell corresponding to each clip block, and one end of the first elastic member being fixedly connected to the clip block, and the other end being fixedly connected to the abutting block; when the headset is worn, based on the elastic force of the ear hook, the connecting block presses the abutting block in the connecting slot toward the earmuff part to abut the clip block, so as to limit the clip block from being separated from the clip slot plugged therein.

[0007] As mentioned above, the radial dimension of the part of the connecting block in the connecting groove is larger than the radial dimension of the part fixed with the ear hook, the width dimension of the middle part of the connecting groove is larger than the radial dimension of the part of the connecting block in the connecting groove, and the connecting block has three positions in the connecting groove: the first position, when the earphone is not worn, based on the elastic force of the first elastic member, the connecting block is at the end of the connecting groove away from the earmuff part; the second position, when the earhook and the ear shell need to be connected, the connecting block is aligned with the middle part of the connecting groove, and the connecting block is inserted into the connecting groove; the third position, when the earphone is worn, based on the elastic force of the earhook, the connecting block squeezes the abutment block at one end of the connecting groove close to the earmuff part.

[0008] As mentioned above, a rack is provided in the portion between the first position and the second position in the connecting groove, a gear is provided on the connecting block, and the connecting block is fixedly connected to the end of the ear hook, and when the connecting block moves from the third position to the first position based on the rebound force of the first elastic member, the interaction after the engagement of the gear and the rack causes the ear shell to flip outward with the earmuff part.

[0009] As mentioned above, the radial dimension of the earmuff portion is greater than the radial dimension of the ear shell.

[0010] As mentioned above, the ear hook includes a main section and a branch section corresponding to each ear shell, and on the arc-shaped track of the main section, the branch section is connected to the main section by means of sliding friction.

[0011] As mentioned above, the ear hook includes a main section and a branch section corresponding to each ear shell, and the branch section is connected to the main section by sliding on the arc-shaped trajectory of the main section; it also includes a locking member, which locks the branch section in position on the main section after adjusting the length of the branch section extending from the main section.

[0012] As mentioned above, the locking member includes a space for the branch segment to move in the main segment, a second elastic member is provided between the branch segment and the end of the space away from the ear shell, and based on the elastic force of the second elastic member, the branch segment tends to retract into the space; a plurality of limit grooves are evenly arranged along an arc-shaped trajectory on the side wall of the space close to the inner side of the main segment, and a limit block is provided at one end of the branch segment away from the ear shell; when the earphone is worn, the branch segment drives the limit block to swing to engage with any limit groove based on the elastic force of the main segment to limit the relative movement of the branch segment and the main segment.

[0013] In the above, the end of the space close to the ear shell is provided with a shaft rod, and the branch section is provided with a movable groove, and the shaft rod is movably arranged in the movable groove.

[0014] As mentioned above, the main section includes two hinged sections, and a third elastic member is provided at the hinge position of the two sections. Under the elastic force of the third elastic member, the two sections tend to open, and an abutment rod is slidably provided in each section. During the stroke in which the branch section is retracted into the space under the elastic force of the second elastic member, each branch section pushes its corresponding abutment rod, and the two sections are closed based on the mutual squeezing action of the two abutment rods.

[0015] As mentioned above, the stiffness coefficient of the third elastic member is smaller than the stiffness coefficient of the second elastic member.

[0016] The beneficial effect of the present invention is that by arranging abutment blocks at the positions corresponding to each card block, when wearing the earphones, the elastic force of the ear hook can be utilized to cause the connecting block to exert an extrusion effect on the abutment blocks, and the abutment blocks abut against the card block. When the card slot squeezes the card block, the card block and the corresponding inserted card slot cannot be separated, thereby preventing the earmuff part from changing in size again after the size is adjusted due to accidental touching of the adjustment mechanism or some positions associated with the earmuff part. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a headset provided in an embodiment of the present invention when worn; Figure 2 A schematic diagram of the cross-sectional structure of an ear hook of a headset provided in an embodiment of the present invention when worn; Figure 3 for Figure 2 The enlarged structural diagram at A in the middle; Figure 4An exploded view of a part of the structure of a headset provided in an embodiment of the present invention from a first-person perspective; Figure 5 An exploded view of a part of the structure of a headset provided in an embodiment of the present invention from a second perspective; Figure 6 It is a schematic diagram of the cooperation structure between the abutment block and the clamping block when wearing a headset provided in an embodiment of the present invention; Figure 7 A schematic diagram of the three-dimensional structure of a headset provided in an embodiment of the present invention when not being worn; Figure 8 A schematic diagram of the cross-sectional structure of an ear hook of a headset provided in an embodiment of the present invention when the headset is not worn; Fig. 9 for Figure 8 The enlarged structural diagram at B in the middle; Fig.10 The present invention is a schematic diagram of the cooperation structure between an abutment block and a clamping block when a headset is not worn.

[0019] Description of reference numerals: 1. Ear hook; 10. Connector; 11. Main section; 12. Branch section; 13. Space; 14. Limiting groove; 15. Limiting block; 16. Axle; 17. Movable groove; 18. Abutment rod; 19. Locking groove; 2. Ear shell; 20. Sound unit; 21. Locking rod; 22. Rope; 3. Earmuff; 30. Elastic earmuff; 31. Elastic protective cover; 4. Adjustment mechanism; 40. Adjustment ring; 41. Fixed ring; 42. Guide strip; 43. Guide block; 44. Bump; 45. Adjustment groove; 46. Arc plate; 47. Arc groove; 48. Card slot; 49. Card block; 50. Connection groove; 51. Connection block; 52. Abutment block; 53. Rack; 54. Gear. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1 To Attachment Fig.10 The present invention is further described in detail.

[0021] An embodiment of the present invention provides a headset, including an ear hook 1 and two ear shells 2, each ear shell 2 is provided with an earmuff 3, the ear shell 2 is also provided with an adjustment mechanism 4 for adjusting the size of the earmuff 3, the adjustment mechanism 4 is provided with a plurality of slots 48 arranged along the circumferential direction, each ear shell 2 is provided with a group of blocks 49 slidably, and a first elastic member is provided between each block 49 and the ear shell 2, and based on the elastic force of the first elastic member, each block 49 is plugged into any slot 48 to lock the position of the earmuff 3 after the size is adjusted, so that The ear shell 2 is provided with a connecting groove 50, in which a connecting block 51 is movably arranged, and the end of the ear hook 1 is connected to the connecting block 51; abutment blocks 52 are slidably arranged at the positions corresponding to each block 49 on the ear shell 2, and one end of the first elastic member is fixedly connected to the block 49, and the other end is fixedly connected to the abutment block 52; when wearing the earphones, based on the elastic force of the ear hook 1, the connecting block 51 squeezes the abutment block 52 in the connecting groove 50 toward the earmuff part 3 to abut the block 49, so as to limit the block 49 from being detached from the slot 48 plugged therein.

[0022] Specifically, the ear hook 1 has an arc-shaped structure as a whole, and has a tendency to be retracted inward (that is, there is a tendency for the inner arc opening to shrink) based on its own elastic force. An ear shell 2 is arranged at each end of the ear hook 1, and a sound unit 20 is arranged in the ear shell 2. An arc-shaped connecting piece 10 is installed at each end of the ear hook 1. The connecting piece 10 is rotatably connected to the ear shell 2. The rotation plane of the ear shell 2 is parallel to the plane where the arc-shaped trajectory of the ear hook 1 is located. An earmuff part 3 is arranged on the side of the ear shell 2 facing the wearer's ear. The earmuff part 3 includes an elastic earmuff 30 and an elastic protective cover 31 sleeved on the elastic earmuff 30. The elastic earmuff 30 and the elastic protective cover 31 are both annular structures. The interior of the two annular structures is an ear groove. In order to adapt to the size of the wearer's ear, the size of the ear groove can be adjusted to achieve That is, an adjustment mechanism 4 is arranged on the ear shell 2, and the adjustment mechanism 4 can drive the elastic earmuff 30 to elastically deform, expand or contract, wherein the adjustment mechanism 4 includes an adjustment ring 40 rotatably arranged on the ear shell 2, a fixed ring 41 is fixedly connected in the ear shell 2, and a plurality of guide strips 42 are fixedly connected in the circumferential direction of the fixed ring 41, and a guide block 43 is slidably arranged on the guide strip 42, and the sliding direction of the guide block 43 is parallel to the radial direction of the fixed ring 41 at its position, and a protrusion 44 is fixedly connected to the guide block 43, and a plurality of adjustment grooves 45 are opened on the adjustment ring 40, and each adjustment groove 45 is correspondingly connected to a protrusion 44, and the protrusion 44 is slidably arranged in the adjustment groove 45, and the adjustment groove 45 is tilted on the adjustment ring 40, that is, when the adjustment ring 40 rotates, the side wall of the adjustment groove 45 The projection 44 will be squeezed, so that the projection 44 is close to or away from the center of the adjustment ring 40. Each guide block 43 is arranged with an arc plate 46. A plurality of arc grooves 47 are opened in the circumferential direction on the elastic earmuff 30. The plurality of arc plates 46 correspond to and are plugged into the plurality of arc grooves 47 one by one. In this way, by rotating the adjustment ring 40, the plurality of guide blocks 43 can be driven to approach or move away from the center of the adjustment ring 40 on the respective corresponding guide strips 42. Each guide block 43 will drive the arc plates 46 connected to each of them to expand the elastic earmuff 30 outward or contract the elastic earmuff 30 inward, thereby adjusting the size of the ear groove. The elastic earmuff 30 and the elastic shield 31 both have resilience. After adjusting the size of the ear groove, the position of the adjustment ring 40 needs to be adjusted. To limit, that is, a plurality of slots 48 are provided along the circumferential direction on the side of the adjusting ring 40 away from the adjusting slot 45, and a group of blocks 49 are slidably provided on the ear shell 2, the sliding direction of the blocks 49 is parallel to the axial direction of the ear shell 2, and in the sliding direction, a first elastic member is arranged between each block 49 and the ear shell 2, and each group of blocks 49 has two blocks, which are respectively arranged at the positions corresponding to the ear shell 2 at both ends of the arc-shaped connecting member 10. In the process of rotating the adjusting ring 40 to adjust the size of the ear slot, the slot 48 will form an extrusion effect on the block 49, and the block 49 will slide out of the corresponding inserted slot 48 (the block 49 and the slot 48 can achieve the extrusion action through the wedge-shaped fit), and the elastic force of the first elastic member will also increase accordingly. After the size of the ear slot is adjusted,At this time, the block 49 will be plugged into the corresponding slot 48 based on the rebound force of the first elastic member, and the rotation of the adjustment ring 40 is restricted. When the adjustment ring 40 or the elastic earmuff 30 is not subjected to an external force greater than the elastic force of the first elastic member, the position of the adjustment ring 40 can be stably restricted. When the force of accidentally touching the adjustment ring 40 or the relevant part of the earmuff part 3 is greater than the elastic force of the first elastic member, the size of the ear slot will change. Therefore, this method of limiting the rotation of the adjustment ring 40 is obviously problematic.

[0023] Based on the above problems, in the present embodiment, a connecting groove 50 is provided at the position corresponding to each block 49 on the ear shell 2, and the space 13 on the ear shell 2 for the block 49 to slide is incorporated into the connecting groove 50, and a connecting block 51 is also provided in the connecting groove 50, and the connecting block 51 can rotate and slide in the connecting groove 50, and the sliding direction is consistent with the sliding direction of the block 49, and each of the two ends of each arc-shaped connecting member 10 is connected to a connecting block 51, and an abutment block 52 is also slidably provided in the connecting groove 50, and the abutment block 52 is located between the connecting block 51 and the block 49, and one end of the first elastic member is connected to the block 49, and the other end is connected to the abutment block 52. When the earphone is not worn, based on the elastic force of the first elastic member, the distance between the abutment block 52 and the block 49 is the farthest, and the connecting block 51 is also in the connecting groove 50 at the farthest position from the earmuff part 3, but at this time the block 49 is still plugged into a certain slot 48 on the adjusting ring 40, and when the adjusting ring 40 or When the elastic earmuff 30 is not subjected to an external force greater than the elastic force of the first elastic member, the position of the adjustment ring 40 can also be stably restricted. Therefore, before wearing the earphone, the size of the ear groove is adjusted first, and then the earphone is worn. When the earphone is worn, the earmuff part 3 is blocked by the wearer's ear and cannot continue to move, and the elastic force provided by the ear hook 1 makes the earmuff part 3 close to the wearer's ear. Therefore, when the earmuff part 3 cannot continue to move based on the elastic force of the ear hook 1, the elastic force of the ear hook 1 will drive the connecting block 51 to slide in the connecting groove 50 toward the direction close to the earmuff part 3 through the connecting member 10. The movement of the connecting block 51 will push the abutting block 52 to compress the first elastic member and gradually abut against the card block 49, so that the card block 49 is plugged into a certain card slot 48. During the wearing process of the earphone, when the adjustment ring 40 or the relevant part of the earmuff part 3 is subjected to an elastic force greater than the first elastic member, the card block 49 will not be disengaged from the card slot 48, thereby forming a complete restriction on the position of the adjustment ring 40.

[0024] The beneficial effect of this embodiment is that the elastic force of the ear hook 1 not only provides a clamping force for the two earmuff parts 3 to fit tightly against the wearer's ears, but also provides a force to limit the position of the adjustment ring 40 to prevent the adjustment ring 40 from rotating due to accidental contact, thereby preventing the ear groove that has been adjusted to a certain size from changing.

[0025] Preferably, the radial dimension of the portion of the connecting block 51 in the connecting groove 50 is larger than the radial dimension of the portion fixed with the ear hook 1, and the width dimension of the middle portion of the connecting groove 50 is larger than the radial dimension of the portion of the connecting block 51 in the connecting groove 50, and the connecting block 51 has three positions in the connecting groove 50: the first position, when the earphone is not worn, based on the elastic force of the first elastic member, the connecting block 51 is at the end of the connecting groove 50 away from the earmuff part 3; the second position, when the ear hook 1 and the ear shell 2 need to be connected, the connecting block 51 is aligned with the middle portion of the connecting groove 50, and the connecting block 51 is inserted into the connecting groove 50; the third position, when the earphone is worn, based on the elastic force of the ear hook 1, the connecting block 51 squeezes the abutment block 52 at one end of the connecting groove 50 close to the earmuff part 3.

[0026] Specifically, when the connecting block 51 is in the first position, the adjusting ring 40 can be rotated to adjust the size of the ear groove. When the connecting block 51 is in the second position, the ear hook 1 can be disassembled and assembled. When the connecting block 51 is in the third position, the current earphone is in a wearing state, and the connecting block 51 abuts against the card block 49 by squeezing the abutment block 52, and the card block 49 is plugged into the card slot 48, thereby completely restricting the position of the adjusting ring 40.

[0027] Furthermore, a rack 53 is provided in the portion between the first position and the second position in the connecting groove 50, a gear 54 is provided on the connecting block 51, and the connecting block 51 is fixedly connected to the end of the ear hook 1. When the connecting block 51 moves from the third position to the first position based on the rebound force of the first elastic member, the gear 54 and the rack 53 interact after meshing, and the ear shell 2 with the earmuff part 3 flips outward.

[0028] Specifically, there is a risk of the earphone falling off during wearing, and the most important part of the head-mounted earphone is the sound unit 20 in the ear shell 2. Therefore, when the earphone falls off, the ear shell 2 needs to be protected to prevent the sound unit 20 from being damaged. Therefore, in this embodiment, a rack 53 is provided in the portion between the first position and the second position in the connecting groove 50, and a gear 54 is fixed to the connecting block 51. When the earphone falls off, the earmuff part 3 is no longer restricted by the wearer's ear. Then, when the elastic force of the ear hook 1 pushes the ear shell 2, the ear shell 2 is not restricted, so the first elastic member will rebound and push the abutment block 52 to separate from the clamping block 49. That is, at this time, with the ear hook 1 as a reference, under the action of the rebound force of the first elastic member, the ear shell 2 will move with the earmuff towards the direction originally close to the wearer's ear, which is equivalent to the connecting block 51 moving from the third position to the first position. In this process, the gear 54 meshes with the rack 53. After closing, with the ear shell 2 as a reference, the gear 54 rotates, and when the ear hook 1 is used as a reference, the ear shell 2 rotates, and the ear shell 2 drives the earmuff part 3 to flip, so that the ear shell 2 can face the inner side (i.e., the inner arc surface) of the ear hook 1, so that the ear shell 2 is protected by the ear hook 1 and the two earmuff parts 3. Preferably, the ear shell 2 can drive the earmuff part 3 to flip half a circle, so that the ear shell 2 can face the inner side of the ear hook 1 in a larger range, and in an optional embodiment, the radial size of the earmuff part 3 is larger than the radial size of the ear shell 2. The advantage of such a setting is that the elastic force of the ear hook 1 can not only make the two earmuff parts 3 close to the wearer's ears, but also play a buffering role when the earphone accidentally falls and collides with the ground. The elastic earmuff 30 and the elastic protective cover 31 of the earmuff part 3 not only provide an elastic and comfortable effect for wearing, but also can use the elasticity of the earmuff part 3 to play a buffering role, thereby protecting the ear shell 2.

[0029] Preferably, the ear hook 1 includes a main section 11 and a branch section 12 corresponding to each ear shell 2. On the arc-shaped trajectory of the main section 11, the branch section 12 is connected to the main section 11 by sliding friction. Specifically, according to the size of the wearer's head, the length of the ear hook 1 needs to be adjusted accordingly. Therefore, the ear hook 1 can be set to a main section 11 that provides elastic force and two branch sections 12 that can be telescopically changed at both ends of the main section 11. After adjusting the length of the ear hook 1, the length of the ear hook 1 should not change when the earphone is worn. Therefore, in this embodiment, the main section 11 and the branch section 12 are set to have a friction effect to limit the sliding of the branch section 12 on the main section 11 to a certain extent.

[0030] According to another embodiment of the present invention, the ear hook 1 includes a main section 11 and a branch section 12 corresponding to each ear shell 2, and the branch section 12 is connected to the main section 11 by sliding on the arc-shaped trajectory of the main section 11; and also includes a locking member, which locks the branch section 12 on the main section 11 after adjusting the length of the branch section 12 extending from the main section 11.

[0031] Specifically, when the headset is being worn, if the wearer is in motion, relative movement will inevitably occur between the vibrating main section 11 and the branch section 12. Therefore, the friction between the two should not be too large, and it is also necessary to ensure that the wearer can adjust the length of the ear hook 1 normally. Therefore, in this embodiment, the main section 11 and the branch section 12 are configured to slide, and the friction effect can be ignored. By providing a locking piece, the position of the branch section 12 on the main section 11 is restricted, such as by threading a bolt or a pin on the main section 11, and providing a corresponding locking groove on the branch section 12. After adjusting the length of the ear hook 1, the bolt is rotated so that the end of the bolt can enter a locking groove on the branch section 12, or the pin is inserted into a locking groove on the branch section 12, so as to lock the position of the branch section 12 on the main section 11.

[0032] Preferably, the locking member includes a space 13 in the main section 11 for the branch section 12 to move, a second elastic member is provided between the branch section 12 and the end of the space 13 away from the ear shell 2, and based on the elastic force of the second elastic member, the branch section 12 tends to retract into the space 13; a plurality of limiting grooves 14 are evenly opened along an arc-shaped trajectory on the side wall of the space 13 close to the inner side of the main section 11, and a limiting block 15 is provided at the end of the branch section 12 away from the ear shell 2; when the earphone is worn, the branch section 12 drives the limiting block 15 to swing to engage with any limiting groove 14 based on the elastic force of the main section 11, so as to limit the relative movement of the branch section 12 and the main section 11.

[0033] Specifically, in the aforementioned embodiment, after the length of the ear hook 1 is adjusted, the position of the branch section 12 on the main section 11 is locked. When the earphone is not worn, the bolt or the latch needs to be manually removed from the locking groove. In this embodiment, a mechanism is provided by which the branch section 12 can be automatically retracted into the main section 11, that is, the trajectory of the space 13 is parallel to the trajectory of the main section 11, the width and length of the space 13 are greater than the width and length of the branch section 12, and the width of the opening end of the space 13 (the end of the main section 11 close to the ear shell 2) is slightly greater than the width of the branch section 12, such as the branch section 1 2 is 10, and the width of the open end of the space 13 is 11. In this way, when the branch segment 12 swings in the main segment 11, the restriction of the open end of the space 13 on the branch segment 12 can be reduced. During the wearing process of the earphone, the elastic force of the main segment 11 will be first applied to the two branch segments 12. The two branch segments 12 transmit the force to their respective corresponding ear shells 2, so that the two earmuffs 3 can be tightly attached to the two ears of the wearer. After the earmuffs 3 are blocked by the wearer's ears and cannot move in the direction of the force, the force applied by the main segment 11 to the branch segment 12 will make the branch segment 12 The inner side of the opening end of the space 13 is abutted against the inner side of the main section 11, and the branch section 12 swings with the abutment point as the swing axis point, then the end of the branch section 12 in the space 13 will be pressed against the side of the space 13 close to the inner side of the main section 11, so that a plurality of limit grooves 14 are opened along the trajectory on the side wall of the space 13, and a limit block 15 is provided at the end of the branch section 12 away from the ear shell 2. After the branch section 12 swings under the elastic force of the main section 11, the limit block 15 will be driven to plug into the limit groove 14 at a certain position. After the length of the ear hook 1 is adjusted, the limit block 15 will be plugged into the limit groove 14 at a certain position during the wearing of the earphone. The positioning groove 14 is plugged in to limit the position of the branch section 12 on the main section 11. When the branch section 12 moves relative to the main section 11, the elastic force of the second elastic member increases, and the swing of the branch section 12 will also cause radial elastic deformation of the second elastic member. When the earphone is taken off, since the earmuff part 3 is not hindered by the wearer's ear, the elastic force actively applied to the branch section 12 has no effect. Then, under the action of the rebound force of the second elastic member, the branch section 12 will drive the limit block 15 to disengage from the limit groove 14 first, and then drive the branch section 12 to retract into the space 13.

[0034] Furthermore, the end of the space 13 close to the ear shell 2 is provided with a shaft 16, and the branch section 12 is provided with a movable groove 17, and the shaft 16 is movably arranged in the movable groove 17; specifically, in the aforementioned embodiment, the elastic force of the main section 11 is used to make the branch section 12 swing in the space 13, driving the limit block 15 to be plugged into the limit groove 14, so as to realize the position of the branch section 12 on the main section 11, and a space 13 for the branch section 12 to swing needs to be reserved between the open end of the space 13 and the branch section 12, so there is shaking between the branch section 12 and the main section 11, which may seriously cause In order to cause the limit block 15 to be disengaged from the limit groove 14, in the present embodiment, a movable groove 17 is provided on each branch section 12, and the trajectory of the movable groove 17 is consistent with the trajectory of the branch section 12. A shaft rod 16 is provided at the open end of the space 13, and the shaft rod 16 can rotate or slide in the movable groove 17, but the shaft rod 16 is in contact with the groove arm of the movable groove 17. In this way, the shaft rod 16 cooperates with the movable groove 17 to prevent the branch section 12 from shaking on the main section 11, and each time the branch section 12 swings due to the active elastic force of the hand, it swings with the shaft rod 16 as the swing axis.

[0035] Furthermore, the main section 11 includes two hinged sections, and a third elastic member is provided at the hinge position of the two sections. Under the elastic force of the third elastic member, the two sections tend to open, and an abutment rod 18 is slidably provided in each section. When the branch section 12 is retracted into the space 13 by the elastic force of the second elastic member, each branch section 12 pushes its corresponding abutment rod 18, and the two sections are closed based on the mutual squeezing effect of the two abutment rods 18.

[0036] Specifically, the main section 11 is divided into two sections hinged to each other, and the hinge point of the two sections is close to the inner side, and a third elastic member is arranged at the hinge. Based on the elastic force of the third elastic member, the two sections of the main section 11 tend to be always open. However, after the opening, the main section 11 still needs to expand outward when the earphone is worn, so as not to affect the wearing. The stiffness coefficient of the third elastic member is smaller than the stiffness coefficient of the second elastic member. That is, after the wearer takes off the earphone, under the action of the rebound force of the second elastic member, during the process of the branch section 12 retracting into the space 13, the branch section 12 squeezes the corresponding abutment rod 18, and the two abutment rods 18 on the two sections push each other. At this time, with the two abutment rods 18 as a reference, the rebound force of the second elastic member drives a section of the corresponding main section 11 to slide on the abutment rod 18, and the two sections are in a state of being far away from each other. In this way, the two sections of the main section 11 can be folded inward, so that the two ear shells 2 that have been flipped half a circle are closer.

[0037] In this embodiment, a locking mechanism is further provided at one end of each branch section 12 close to the auricle 2, and the locking mechanism includes two locking grooves 19 provided on the connecting member 10, and two locking rods 21 slidably arranged on the branch section 12, and a fourth elastic member is provided between the two locking rods 21. Under the elastic force of the fourth elastic member, the two locking rods 21 have a tendency to always approach each other, and an inelastic rope 22 is wound around the connecting member 10, and one end of the rope 22 is connected to one of the locking rods 21. When the earphone is worn normally, the two locking rods 21 are plugged into the two locking grooves 19, and the connecting member 10 is connected to the earphone. There is no relative rotation between the connecting member 10 and the branch section 12. When the earphone is separated from the wearer's ear and the branch section 12 is retracted into the space 13 due to the resilience of the second elastic member, the shaft 16 will squeeze the two locks, so that the two locking rods 21 move away from each other and disengage from their corresponding locking grooves 19. During the movement, one of the locking rods 21 will pull the connecting member 10 to deflect through the rope 22, and the connecting member 10 will drive the ear shell 2 to deflect together, so that the ear shell 2 can be closer to the inner side of the main section 11, thereby better protecting the ear shell 2.

[0038] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of the protection of the present invention.

Claims

1. A headset, comprising an ear hook and two ear shells, each ear shell is provided with an earmuff part, and the ear shell is provided with an adjustment mechanism for adjusting the size of the earmuff part, the adjustment mechanism is provided with a plurality of slots arranged along the circumference, a group of card blocks are slidably provided on each ear shell, and a first elastic member is provided between each card block and the ear shell, and based on the elastic force of the first elastic member, each card block is plugged into any card slot to lock the position of the earmuff part after the size is adjusted, characterized in that: The ear shell is provided with a connecting groove, a connecting block is movably arranged in the connecting groove, and the end of the ear hook is connected to the connecting block; abutment blocks are slidably arranged at the portion of the ear shell corresponding to each clamping block, and one end of the first elastic member is fixedly connected to the clamping block, and the other end is fixedly connected to the abutment block; When wearing the earphone, based on the elastic force of the ear hook, the connecting block presses the abutting block against the card block in the connecting slot toward the earmuff part to limit the card block from being separated from the card slot plugged therein.

2. The headset according to claim 1, characterized in that: The radial dimension of the portion of the connecting block in the connecting groove is larger than the radial dimension of the portion fixed to the ear hook, the width dimension of the middle portion of the connecting groove is larger than the radial dimension of the portion of the connecting block in the connecting groove, and the connecting block has three positions in the connecting groove: In the first position, when the earphone is not worn, the connecting block is located at an end of the connecting slot away from the earmuff part due to the elastic force of the first elastic member; In the second position, when the ear hook and the ear shell need to be connected, the connecting block is aligned with the middle of the connecting slot and the connecting block is inserted into the connecting slot; In the third position, when the earphone is worn, based on the elastic force of the ear hook, the connecting block presses the abutting block at one end close to the earmuff part in the connecting groove.

3. The headset according to claim 2, characterized in that: A rack is provided in the connecting groove between the first position and the second position, a gear is provided on the connecting block, and the connecting block is fixedly connected to the end of the ear hook. When the connecting block moves from the third position to the first position based on the rebound force of the first elastic member, the interaction after the engagement of the gear and the rack causes the ear shell to flip outward with the earmuff part.

4. The headset according to claim 3, characterized in that: The radial dimension of the earmuff portion is greater than the radial dimension of the ear shell.

5. The headset according to claim 1, characterized in that: The ear hook comprises a main section and branch sections corresponding to each ear shell, and on the arc-shaped track of the main section, the branch sections are connected to the main section by means of sliding friction.

6. The headset according to claim 1, characterized in that: The ear hook includes a main section and a branch section corresponding to each ear shell, and the branch section is connected to the main section by sliding on the arc-shaped trajectory of the main section; and also includes a locking member, which locks the branch section in position on the main section after adjusting the length of the branch section extending from the main section.

7. The headset according to claim 6, characterized in that: The locking member includes a space for the branch section to move in the main section, a second elastic member is provided between the branch section and the end of the space away from the ear shell, and based on the elastic force of the second elastic member, the branch section tends to retract into the space; a plurality of limit grooves are evenly arranged along an arc-shaped trajectory on the side wall of the space close to the inner side of the main section, and a limit block is provided at one end of the branch section away from the ear shell; when the earphone is worn, the branch section drives the limit block to swing to engage with any limit groove based on the elastic force of the main section to limit the relative movement of the branch section and the main section.

8. The headset according to claim 7, characterized in that: The end of the space close to the ear shell is provided with a shaft rod, and the branch section is provided with a movable groove, and the shaft rod is movably arranged in the movable groove.

9. The headset according to claim 7, characterized in that: The main section includes two hinged sections, and a third elastic member is provided at the hinge position of the two sections. Under the elastic force of the third elastic member, the two sections tend to open, and an abutment rod is slidably provided in each section. During the travel of the branch section retracting into the space under the elastic force of the second elastic member, each branch section pushes its corresponding abutment rod, and the two sections are closed based on the mutual squeezing effect of the two abutment rods.

10. The headset according to claim 9, characterized in that: The stiffness coefficient of the third elastic member is smaller than the stiffness coefficient of the second elastic member.

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