A headphone

Abstract

The present invention discloses a pair of head-mounted headphones, which relates to the technical field related to headphones. It includes ear hooks and two ear shells. An ear cup part is arranged outside each ear shell. An adjusting mechanism for adjusting the size of the ear cup part is further provided on the ear shell. A plurality of card slots are arranged circumferentially on the adjusting mechanism. A set of clamping blocks are slidably arranged on each ear shell. A first elastic member is arranged between each clamping block and the ear shell. Based on the elastic force of the first elastic member, each clamping block is inserted into any one of the card slots to lock the position of the ear cup part after the adjusted size. A connection groove is formed on the ear shell, and a connection block is movably arranged in the connection groove. The end of the ear hook is connected to the connection block; A contact block is slidably arranged at a position corresponding to each clamping block on the ear shell. One end of the first elastic member is fixedly connected to the clamping block, and the other end is fixedly connected to the contact block; When wearing the headphones, based on the elastic force of the ear hook, the connection block squeezes the contact block in the connection groove towards the direction close to the ear cup part to contact the clamping block.

Description

Technical Field

[0001] The present invention relates to the technical field of headphones, and specifically to a headphone. Background Art

[0002] As is known, a headphone refers to a headphone worn on the head of a wearer without being inserted into the ear canal. Its main structure includes an arc-shaped ear hook. At both ends of the ear hook, two ear cups are connected by a rotating shaft structure. An ear pad is also arranged on each ear cup. The ear hook provides an elastic force for the two ear cups to approach each other, so that the headphone can be clamped on the head of the wearer.

[0003] In the prior art, when a headphone is in use, the size of the ear pad cannot be adjusted, resulting in the wearer being unable to adapt to the ears during use. To solve this problem, in the patent with the publication number CN117156344B, the publication date of January 26, 2024, and the title "A Headphone with an Ear Groove Adjustment Function", the proposed solution is a headphone with an ear groove adjustment function, including an ear hook, a cavity, a rear cavity, a fixing groove, a driving unit speaker, and an electroacoustic conversion device. The cavity is movably connected to both sides of the bottom of the ear hook. The rear cavity is fixedly connected to the right side of the cavity. The fixing groove is opened on the right inner wall of the rear cavity. The present invention limits the cavity through the ear hook to prevent the cavity from falling off, then protects the outside of the cavity through the rear cavity, then converts the electrical signal into an audio signal through the electroacoustic conversion device and plays it through the driving unit speaker, and then can adjust the size of the ear groove through the ear groove adjustment mechanism during wearing, solving the problem that the elastic ear pad of the existing headphone cannot be adjusted in size during use, resulting in the inability to adapt to ears of different sizes. When the ears are larger, the size of the elastic ear pad cannot be adjusted to fit ears of different sizes.

[0004] The disadvantage of the above prior art is that when adjusting the size of the ear groove, by rotating the adjustment ring, the adjustment ring drives the card slot to rotate, so that the card slot squeezes the convex block into the movable slot. And when locking the position after adjusting the size of the ear groove, after the rotation stops, the spring pushes the locking block to engage with the card slot to limit the position of the adjustment ring. Obviously, in this locking method, when the adjustment ring or some parts associated with the ear groove are accidentally touched, the adjustment ring rotates, resulting in the size of the ear groove changing again after the adjustment. Summary of the Invention

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

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A head-mounted earphone, comprising an ear hook and two ear shells. An ear cup part is arranged outside each ear shell, and an adjusting mechanism for adjusting the size of the ear cup part is further provided on the ear shell. A plurality of card slots are arranged circumferentially on the adjusting mechanism. A set of clamping blocks are slidably arranged on each ear shell, and a first elastic member is arranged between each clamping block and the ear shell. Based on the elastic force of the first elastic member, each clamping block is inserted into any one of the card slots to lock the position of the ear cup part after the adjusted size. A connecting groove is formed on the ear shell, and a connecting block is movably arranged in the connecting groove. The end of the ear hook is connected to the connecting block; at a position corresponding to each clamping block on the ear shell, an abutting block is slidably arranged, and one end of the first elastic member is fixedly connected to the clamping block, and the other end is fixedly connected to the abutting block; when wearing the earphone, based on the elastic force of the ear hook, the connecting block squeezes the abutting block against the clamping block in the connecting groove in the direction close to the ear cup part to prevent the clamping block from disengaging from the card slot inserted thereinto.

[0008] In the above, the radial dimension of the part of the connecting block in the connecting groove is larger than the radial dimension of the part fixedly connected to 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. 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 one end of the connecting groove away from the ear cup part; the second position, when it is necessary to connect the ear hook and the ear shell, 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 ear hook, the connecting block squeezes the abutting block at one end of the connecting groove close to the ear cup part.

[0009] In the above, a rack is arranged in the part of the connecting groove between the first position and the second position. A gear is arranged on the connecting block, and the connecting block is fixedly connected to the end of the ear hook. During the movement of the connecting block from the third position to the first position based on the return elastic force of the first elastic member, after the gear and the rack are engaged, the ear shell drives the ear cup part to turn outwards.

[0010] In the above, the radial dimension of the ear cup part is larger than the radial dimension of the ear shell.

[0011] In the above, the ear hook includes a main section and a branch section corresponding to each ear shell. On the circular arc track of the main section, the branch section is connected to the main section by means of sliding friction.

[0012] In the above, the ear hook includes a main section and a branch section corresponding to each ear shell. On the circular arc track of the main section, the branch section is connected to the main section by means of sliding; a locking member is further included. After adjusting the length of the branch section extending from the main section, the locking member locks the position of the branch section on the main section.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] As mentioned above, the stiffness coefficient of the third elastic member is smaller than the stiffness coefficient of the second elastic member.

[0017] 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

[0018] 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.

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a headset provided in an embodiment of the present invention when worn;

[0020] 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;

[0021] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 Exploded view of a partial structure of a headphone provided in an embodiment of the present invention from the first perspective;

[0023] Figure 5 Exploded view of a partial structure of a headphone provided in an embodiment of the present invention from the second perspective;

[0024] Figure 6 Schematic diagram of the cooperation structure between the abutting block and the clamping block when the headphone provided in an embodiment of the present invention is worn;

[0025] Figure 7 Schematic diagram of the three-dimensional structure of a headphone provided in an embodiment of the present invention when not worn;

[0026] Figure 8 Schematic diagram of the cross-sectional structure of the earhook of a headphone provided in an embodiment of the present invention when not worn;

[0027] Figure 9 For Figure 8 Enlarged structure diagram at position B in

[0028] Figure 10 Schematic diagram of the cooperation structure between the abutting block and the clamping block of a headphone provided in an embodiment of the present invention when not worn.

[0029] Explanation of reference numerals:

[0030] 1. Earhook; 10. Connector; 11. Main section; 12. Branch section; 13. Space; 14. Limiting groove; 15. Limiting block; 16. Shaft rod; 17. Movable groove; 18. Abutting rod; 19. Locking groove; 2. Ear shell; 20. Sound generating unit; 21. Locking rod; 22. Rope; 3. Ear cup part; 30. Elastic ear cup; 31. Elastic protective cover; 4. Adjusting mechanism; 40. Adjusting ring; 41. Fixed ring; 42. Guide strip; 43. Guide block; 44. Protrusion; 45. Adjusting groove; 46. Arc plate; 47. Arc groove; 48. Card slot; 49. Clamping block; 50. Connection groove; 51. Connection block; 52. Abutting block; 53. Rack; 54. Gear. Detailed implementation manners

[0031] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further introduced in detail below in conjunction with the attached Figure 1 to the attached Figure 10 for further detailed introduction of the present invention.

[0032] An embodiment of the present invention provides a pair of headphones, which includes an earhook 1 and two ear shells 2. An earmuff portion 3 is arranged outside each ear shell 2. An adjusting mechanism 4 for adjusting the size of the earmuff portion 3 is further provided on the ear shell 2. A plurality of card slots 48 are circumferentially arranged on the adjusting mechanism 4. A set of clamping blocks 49 are slidably arranged on each ear shell 2. A first elastic member is arranged between each clamping block 49 and the ear shell 2. Based on the elastic force of the first elastic member, each clamping block 49 is inserted into any one of the card slots 48 to lock the position of the earmuff portion 3 after the adjusted size. A connecting groove 50 is formed on the ear shell 2. A connecting block 51 is movably arranged in the connecting groove 50. The end of the earhook 1 is connected to the connecting block 51. An abutting block 52 is slidably arranged at a position corresponding to each clamping block 49 on the ear shell 2. One end of the first elastic member is fixedly connected to the clamping block 49, and the other end is fixedly connected to the abutting block 52. When wearing the headphones, based on the elastic force of the earhook 1, the connecting block 51 squeezes the abutting block 52 to abut against the clamping block 49 in the connecting groove 50 in the direction close to the earmuff portion 3, so as to prevent the clamping block 49 from disengaging from the card slot 48 inserted thereinto.

[0033] 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 locking block 49 will be inserted into the corresponding card slot 48 based on the resilience of the first elastic member. At this time, the rotation of the adjustment ring 40 is restricted. When the adjustment ring 40 or the elastic ear cup 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 caused by accidentally touching the adjustment ring 40 or the relevant part of the ear cup 3 is greater than the elastic force of the first elastic member, the size of the ear canal will change. Therefore, this method of restricting the rotation of the adjustment ring 40 obviously has problems.

[0034] Based on the above problems, in this embodiment, a connecting groove 50 is provided at the position corresponding to each locking block 49 on the ear shell 2. The space 13 on the ear shell 2 for the locking block 49 to slide is incorporated into the connecting groove 50. A connecting block 51 is also provided in the connecting groove 50. The connecting block 51 can rotate and slide in the connecting groove 50, and the sliding direction is the same as the sliding direction of the locking block 49. Each end of each arc-shaped connecting member 10 is connected to a connecting block 51. An abutting block 52 is also slidably provided in the connecting groove 50. The abutting block 52 is located between the connecting block 51 and the locking block 49. One end of the first elastic member is connected to the locking block 49, and the other end is connected to the abutting block 52. When the earphone is not worn, based on the elastic force of the first elastic member, the distance between the abutting block 52 and the locking block 49 is the farthest. At this time, the connecting block 51 is also at the position farthest from the ear cup part 3 in the connecting groove 50. However, at this time, the locking block 49 is still inserted into a certain card slot 48 on the adjustment ring 40. When the adjustment ring 40 or the elastic ear cup 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 still be stably restricted. Therefore, before wearing the earphone, first adjust the size of the ear canal, and then wear the earphone. When wearing the earphone, since the ear cup part 3 is blocked by the wearer's ear and cannot move further, and the elastic force provided by the ear hook 1 causes the ear cup part 3 to closely adhere to the wearer's ear, when the ear cup part 3 cannot move further 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 in the direction close to the ear cup 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 locking block 49, so that the locking block 49 is inserted into a certain card slot 48. During the process of wearing the earphone, when the adjustment ring 40 or the relevant part of the ear cup part 3 is subjected to an external force greater than the elastic force of the first elastic member, the locking block 49 will not be disengaged from the card slot 48, thereby completely restricting the position of the adjustment ring 40.

[0035] 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 ear cup parts 3 to closely adhere to the wearer's ear, but also provides an acting force for restricting the position of the adjustment ring 40 to prevent the adjustment ring 40 from rotating due to accidental touch, resulting in a change in the size of the ear canal that has been adjusted before.

[0036] Preferably, the radial dimension of the portion of the connecting block 51 within the connecting groove 50 is greater than the radial dimension of the portion fixedly connected to the ear hook 1. The width dimension at the middle of the connecting groove 50 is greater than the radial dimension of the portion of the connecting block 51 within the connecting groove 50. The connecting block 51 has three positions within 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 earcup portion 3; the second position, when it is necessary to connect the ear hook 1 to the ear shell 2, the connecting block 51 is aligned with the middle 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 presses against the abutting block 52 at the end of the connecting groove 50 close to the earcup portion 3.

[0037] Specifically, when the connecting block 51 is in the first position, the size of the ear groove can be adjusted by rotating the adjusting ring 40. 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 the wearing state, and the connecting block 51 presses against the clamping block 49 by pressing against the abutting block 52. The clamping block 49 is inserted into the clamping groove 48 to completely limit the position of the adjusting ring 40.

[0038] Furthermore, a rack 53 is provided in the portion of the connecting groove 50 between the first position and the second position. 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. During the movement of the connecting block 51 from the third position towards the first position under the resilience of the first elastic member, due to the interaction after the gear 54 meshes with the rack 53, the ear shell 2 drives the earcup portion 3 to turn outwards.

[0039] Specifically, during the wearing process of the earphone, there is a risk of dropping. The most important part of the headphone is the sound generating unit 20 inside the ear cup 2. Therefore, when the earphone drops, it is necessary to protect the ear cup 2 to prevent the sound generating unit 20 from being damaged. Therefore, in this embodiment, a rack 53 is provided in the part between the first position and the second position in the connecting groove 50, and a gear 54 is fixedly connected to the connecting block 51. When the earphone drops, the ear cup part 3 is no longer restricted by the wearer's ear. Then, when the elastic force of the ear hook 1 pushes the ear cup 2, since there is no restriction on the ear cup 2, the first elastic member will rebound, pushing the abutting block 52 away from the clamping block 49. That is, at this time, taking the ear hook 1 as a reference, under the action of the restoring force of the first elastic member, the ear cup 2 will drive the ear cup to move in the direction closer to the wearer's ear originally, which is equivalent to the connecting block 51 moving from the third position to the first position. Then, during this process, after the gear 54 meshes with the rack 53, at this time, taking the ear cup 2 as a reference, the gear 54 is rotating. Thus, when taking the ear hook 1 as a reference, the ear cup 2 is rotating. The ear cup 2 drives the ear cup part 3 to flip, so that the ear cup 2 can face the inner side (i.e., the inner arc surface) of the ear hook 1, thereby using the ear hook 1 and the two ear cup parts 3 to protect the ear cup 2. Preferably, the ear cup 2 can drive the ear cup part 3 to flip half a circle, so that the ear cup 2 can face the inner side of the ear hook 1 in a larger range. And in an optional embodiment, the radial dimension of the ear cup part 3 is larger than the radial dimension of the ear cup 2. The advantage of such a setting is that the elastic force of the ear hook 1 part can not only make the two ear cup parts 3 close to the wearer's ear, but also play a buffering role when the earphone accidentally drops and collides with the ground. The elastic ear cup 30 and the elastic shield 31 of the ear cup part 3 not only provide an elastic and comfortable wearing effect, but also can play a buffering role by using the elasticity of the ear cup part 3, thereby protecting the ear cup 2.

[0040] Preferably, the ear hook 1 includes a main section 11 and a branch section 12 corresponding to each ear cup 2. On the circular arc track of the main section 11, the branch section 12 is connected to the main section 11 by means of sliding friction; specifically, according to the size of the wearer's head, it is necessary to adjust the length of the ear hook 1 accordingly. Therefore, the ear hook 1 can be set to include 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, when the earphone is worn, the length of the ear hook 1 should not change. Therefore, in this embodiment, a frictional effect is set between the main section 11 and the branch section 12 to limit the sliding of the branch section 12 on the main section 11 to a certain extent.

[0041] In another embodiment of the present invention, the ear hook 1 includes a main section 11 and a branch section 12 corresponding to each ear cup 2. On the circular arc track of the main section 11, the branch section 12 is connected to the main section 11 by means of sliding; further includes a locking member, and after adjusting the length of the branch section 12 extending from the main section 11, the locking member locks the position of the branch section 12 on the main section 11.

[0042] Specifically, during the wearing process of the headphone, if the wearer is in a moving state, relative movement will inevitably occur between the main section 11 and the branch section 12 due to vibration. Therefore, the frictional force between the two should not be too large, and it is also necessary to ensure that the wearer can normally adjust the length of the earhook 1. Thus, in this embodiment, the main section 11 and the branch section 12 are arranged to be sliding, and their frictional force can be ignored. By setting a locking member, the position of the branch section 12 on the main section 11 can be restricted. For example, a bolt or a pin is screwed on the main section 11, and a corresponding locking groove is provided on the branch section 12. After adjusting the length of the earhook 1, rotate the bolt so that the end of the bolt can enter a certain locking groove on the branch section 12, or insert the pin into a certain locking groove on the branch section 12 to lock the position of the branch section 12 on the main section 11.

[0043] Preferably, the locking member includes a space 13 provided 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. Based on the elastic force of the second elastic member, the branch section 12 has a tendency to retract into the space 13. A plurality of limiting grooves 14 are evenly formed on the side wall of the space 13 close to the inner side of the main section 11 along a circular arc track. A limiting block 15 is provided at one end of the branch section 12 away from the ear shell 2. When the headphone is worn, the branch section 12 drives the limiting block 15 to swing and be inserted into any one of the limiting grooves 14 based on the elastic force of the main section 11 to restrict the relative movement between the branch section 12 and the main section 11.

[0044] Specifically, in the foregoing embodiments, for the locking method of the position of the branch segment 12 on the main segment 11 after adjusting the length of the ear hook 1, when the earphone is not worn, it is also necessary to manually remove the bolt or the pin from the insertion with the locking groove. In this embodiment, a mechanism in which the branch segment 12 can automatically retract into the main segment 11 is provided, that is, the trajectory of the space 13 is parallel to the trajectory of the main segment 11. The width and length of the space 13 are both greater than the width and length of the branch segment 12. The width of the open end of the space 13 (the end of the main segment 11 close to the ear shell 2) is slightly greater than the width of the branch segment 12. For example, the width of the branch segment 12 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 process of wearing the earphone, the elastic force of the main segment 11 will first be applied to the two branch segments 12, and the two branch segments 12 will transfer the force to their respective corresponding ear shells 2, so that the two ear cup parts 3 can be closely attached to the two ears of the wearer. After the ear cup part 3 is blocked by the ears of the wearer and cannot move along the direction of the force, the acting force applied by the main segment 11 to the branch segment 12 will cause the branch segment 12 to abut against the inner side of the open end of the space 13 and swing with the abutting point as the swing axis point. Then, one end of the branch segment 12 in the space 13 will be close to the side of the space 13 close to the inner side of the main segment 11. In this way, a plurality of limiting grooves 14 are provided on the side wall of the space 13 along its trajectory, and a limiting block 15 is provided at the end of the branch segment 12 away from the ear shell 2. After the branch segment 12 swings under the action of the elastic force of the main segment 11, it will drive the limiting block 15 to be inserted into a certain position of the limiting groove 14. Then, after adjusting the length of the ear hook 1 and during the process of wearing the earphone, the limiting block 15 will be inserted into the limiting groove 14 to realize the limitation of the position of the branch segment 12 on the main segment 11. Among them, when the branch segment 12 and the main segment 11 move relatively, the elastic force of the second elastic member increases, and the swing of the branch segment 12 will also cause the elastic deformation of the second elastic member in the radial direction. Then, when removing the earphone, since the ear cup part 3 is not blocked by the ears of the wearer, the elastic force actively applied to the branch segment 12 does not work. Then, the branch segment 12 will drive the limiting block 15 to first disengage from the insertion with the limiting groove 14 under the action of the return elastic force of the second elastic member, and then drive the branch segment 12 to retract into the space 13.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] In this embodiment, a locking mechanism is further provided at one end of each branch segment 12 close to the auricle 2. The locking mechanism includes two locking grooves 19 formed in the connecting member 10, and two locking rods 21 slidably arranged on the branch segment 12. 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 tend to always approach each other, and an inelastic rope 22 is wound around the connecting member 10. 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 inserted into the two locking grooves 19, and no relative rotation occurs between the connecting member 10 and the branch segment 12. When the earphone is detached from the wearer's ear and the branch segment 12 retracts into the space 13 under the resilience of the second elastic member, the shaft rod 16 will squeeze the two lockings, causing the two locking rods 21 to move away from each other and disengage from the corresponding locking grooves 19 into which they are inserted. During the movement of one of the locking rods 21, the connecting member 10 will be pulled by the rope 22 to deflect, and the connecting member 10 will drive the auricle 2 to deflect together, so that the auricle 2 can be closer to the inner side of the main segment 11, thereby better protecting the auricle 2.

[0049] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims

1. A headset, comprising an ear hook and two ear shells, an earmuff portion is arranged outside each ear shell, and an adjustment mechanism for adjusting the size of the earmuff portion is also provided on the ear shell, a plurality of slots are arranged circumferentially on the adjustment mechanism, 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 portion 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 card block, and one end of the first elastic member is fixedly connected to the card 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 abutment block in the connecting groove toward the direction close to the earmuff part to abut the card block, so as to limit the card block from being separated from the card slot plugged therein; The ear hook comprises 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 track of the main section; the ear hook also comprises a locking member, and after adjusting the length of the branch section extending from the main section, the locking member locks the branch section on the main section; 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 the branch section has a tendency to retract into the space due to the elastic force of the second elastic member; a plurality of limit grooves are evenly provided 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 be plugged into any limit groove due to the elastic force of the main section, so as to limit the relative movement of the branch section and the main section; The main section includes two sections that are hinged to each other, 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. When the branch section is retracted into the space under the elastic force of the second elastic member, each branch section pushes the corresponding abutment rod, and the two sections are closed based on the mutual squeezing effect of the two abutment rods. 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; The stiffness coefficient of the third elastic member is smaller than the stiffness coefficient of the second elastic member; At one end of each branch section close to the auricle, a locking mechanism is further provided. The locking mechanism includes two locking slots opened on the connecting piece and two locking rods slidably arranged on the branch section. A fourth elastic member is provided between the two locking rods. Under the elastic force of the fourth elastic member, the two locking rods tend to approach each other all the time, and an inelastic rope is wound around the connecting piece. One end of the rope is connected to one of the locking rods. When the earphone is worn normally, the two locking rods are inserted into the two locking slots, and there is no relative rotation between the connecting piece and the branch section. When the earphone is detached from the wearer's ear and the branch section retracts into the space under the resilience of the second elastic member, the shaft rod will squeeze the two locking rods, causing the two locking rods to move away from each other and disengage from the corresponding locking slots into which they are inserted. During the movement of the locking rods, the connecting piece will be pulled by the rope to deflect.

2. The headphone according to claim 1, wherein The radial dimension of the part of the connecting block in the connecting groove is larger than the radial dimension of the part fixedly connected to the ear hook, and 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. 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 one end of the connecting groove away from the earcup part. The second position: When it is necessary to connect the ear hook and the ear shell, 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 ear hook, the connecting block presses against the abutting block at one end of the connecting groove close to the earcup part.

3. The headphone according to claim 2, wherein A rack is provided in the part of 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. During the movement of the connecting block from the third position towards the first position under the resilience of the first elastic member, due to the interaction after the gear meshes with the rack, the ear shell drives the earcup part to turn outwards.

4. The headphone according to claim 3, characterized in that, The radial dimension of the earcup part is larger than the radial dimension of the ear shell.

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