A headphone structure

Abstract

The present invention discloses a headphone structure, which relates to the technical field of headphone related, and comprises a head-mounted outer lining and two ear shells arranged at two ends of the head-mounted outer lining, wherein the ear shells are connected to the ends of the head-mounted outer lining by a rotating shaft structure, and a first elastic member is arranged at the connection between the head-mounted outer lining and the rotating shaft structure, and based on the elastic force of the first elastic member, the ear shells have a tendency to always stick to the inner side of the head-mounted outer lining, and the stiffness coefficient of the first elastic member is smaller than the stiffness coefficient of the head-mounted outer lining; by arranging the first elastic member at the connection between the head-mounted outer lining and the rotating shaft structure, when the headphone is worn, the ear shells are blocked by the ears at the position below the rotating shaft connection, and the head-mounted outer lining provides a force to stick to the ears of the wearer at the ear shells near the rotating shaft structure, and the elastic force of the first elastic member can prevent the ear shells from being separated from the ears at the position below the rotating shaft connection, so that the ear shells as a whole can be basically in a vertical state and stick to the ears, thereby improving wearing comfort.

Description

Technical Field

[0001] The present invention relates to the technical field of earphones, in particular to a head-mounted earphone structure. Background Art

[0002] As is known to all, headphones refer to headphones that are worn on the wearer's head and do not need to be inserted into the ear canal. Their main structure includes an arc-shaped head-mounted outer lining, with two ear shells connected by a rotating shaft structure at both ends of the head-mounted outer lining. An earmuff is also arranged on each ear shell. The head-mounted outer lining 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] There are many types of connecting block structures used, which are mainly used to achieve multi-directional position adjustment between the ear shell and the headband outer lining so that the wearer can wear it comfortably; the specific composition of one connecting block structure is as follows Figure 1 As shown in the figure, both ends of the head-mounted outer lining 1 are provided with upper supporting arms 6, and the upper supporting arms 6 are slidably inserted along the circular arc track of the head-mounted outer lining 1, and the lower supporting arms 13 are fixedly connected to the edge of the ear shell 2, and a connecting block 3 is arranged between the upper supporting arms 6 and the lower supporting arms 13 at corresponding positions, and the upper supporting arms 6 are rotatably connected to the connecting block 3 by a pin 30. When the two ear shells 2 move away from each other, the connecting block 3 and the upper supporting arms 6 do not rotate. A fan-shaped groove 31 is provided on the connecting block 3, and a slider 32 is provided on the lower supporting arm 13. The slider 32 is arranged to slide in the fan-shaped groove 31, and the direction of the rotation axis between the upper supporting arm 6 and the connecting block 3 is parallel to a certain radial direction of the connecting block 3. During the swinging process of the ear shell, the ear shell 2 can be folded against the head-mounted outer lining 1, and the direction of the rotation axis of the lower supporting arm 13 and the connecting block 3 is parallel to the axial direction of the connecting block 3.

[0004] The deficiency of the prior art is that the headband lining provides elastic force for the two ear shells to approach each other so that the earphones can be clamped on the wearer's head. However, after the earphones are worn, the elastic force of the headband lining is always present, and the hinge structure makes the elastic force of the headband lining act more concentratedly on the wearer's head, that is, the position where the upper arm is connected to the hinge cannot be deflected in the opposite direction (opposite to the deflection direction when the ear shells are folded against the headband lining). The position on the ear shell below the hinge connection is where the force is more concentrated. When it contacts the wearer's ear, it will obviously cause discomfort to the wearer. Summary of the invention

[0005] The purpose of the present invention is to provide a headphone structure 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:

[0007] A headphone structure comprises a headband outer lining and two ear shells arranged at both ends of the headband outer lining, wherein the ear shells are connected to the ends of the headband outer lining via a rotating shaft structure, and a first elastic member is provided at the connection between the headband outer lining and the rotating shaft structure, and based on the elastic force of the first elastic member, the ear shells have a tendency to always stick to the inner side of the headband outer lining, and the stiffness coefficient of the first elastic member is smaller than the stiffness coefficient of the headband outer lining.

[0008] As mentioned above, the rotating shaft structure includes a connecting block arranged between each end of the head-mounted outer lining and the corresponding ear shell, and the axial direction of the rotating shaft between the end of the head-mounted outer lining and the connecting block is perpendicular to the axial direction of the rotating shaft between the corresponding ear shell and the connecting block; each end of the head-mounted outer lining is slidably provided with a locking rod, and in the sliding direction, a second elastic member is connected between the locking rod and the head-mounted outer lining, and a plurality of locking grooves are provided on the connecting block. Based on the elastic force of the second elastic member, the locking rod has a tendency to be plugged into any locking groove. When the locking rod is plugged into any locking groove, the elastic force of the head-mounted outer lining and the elastic force of the first elastic member are not sufficient to drive relative rotation between the connecting block and the end of the head-mounted outer lining.

[0009] As mentioned above, the locking groove includes a side with a protrusion, the locking rod is provided with a recessed portion, and the end of the head-mounted outer lining is provided with an extrusion piece; the locking rod and the locking groove are connected in two states: in the first state, based on the elastic force of the second elastic member, the locking rod and the locking groove are not fully connected, at this time the protrusion and the recessed portion are not connected, and the wearer can manually adjust the deflection of the ear shell; in the second state, the locking rod and the locking groove are fully connected by pressing the extrusion piece, and based on the elastic force of the first elastic member, when the locking rod and the locking groove are connected, the protrusion and the recessed portion are connected.

[0010] As mentioned above, the head-mounted outer lining includes a main body with an arc-shaped structure and two upper arms slidably plugged at both ends of the main body. There is friction damping between the upper arms and the main body, and the locking rod is slidably arranged on the upper arms.

[0011] As mentioned above, the extrusion member includes a push block slidably arranged on the upper support arm, the sliding direction of the push block is perpendicular to the sliding direction of the locking rod, an extrusion rod is fixedly connected to the push block, an extrusion groove is provided on the locking rod, the extrusion rod is slidably connected to the extrusion groove at the corresponding position, and rubber layers are arranged on the inner and outer sides corresponding to the end of the body and the upper support arm. In the stroke of pushing the push block toward the inside, the extrusion rod squeezes the extrusion groove to drive the locking rod and the locking groove from not fully inserted to fully inserted.

[0012] As mentioned above, a avoidance groove is provided on the locking rod near the extrusion groove. When the locking rod is not fully plugged into the locking groove, the rotation of the connecting block produces an extrusion effect on the locking rod to avoid plugging with the extrusion rod.

[0013] As mentioned above, the length of the push block is greater than the width of the corresponding upper support arm, and when the locking rod is fully inserted into the locking groove, the push block contacts the inner rubber layer.

[0014] As mentioned above, a locking rack is provided at the end of the body near the inner rubber layer, and a locking tooth is slidably provided on the locking rod near the extrusion groove. In the stroke from the locking rod and the locking groove being never fully inserted to being fully inserted, the extrusion rod drives the locking tooth to engage with the locking rack to limit the sliding of the upper support arm on the body.

[0015] As mentioned above, the ear shell includes a main body and a lower arm fixedly connected to the main body, the connecting block is rotatably connected to the lower arm, and the main body is also covered with an elastic airbag.

[0016] As mentioned above, multiple locking grooves are arranged together on a rocker rod, and the rocker rod is swingably arranged on the connecting block, and a third elastic member is provided at its swinging position. Under the elastic force of the third elastic member, any locking groove tends to be plugged into the locking rod, and the elastic force of the third elastic member is not enough to overcome the elastic force of the elastic airbag. A one-way ventilation valve is provided on the elastic airbag in a detachable manner, and a piston member is provided between the elastic airbag and the rocker rod; in the compression stroke of the elastic airbag, the internal gas is discharged through the one-way ventilation valve, and in the rebound stroke of the elastic airbag, the rocker rod is driven away from the locking rod by the piston member, and after the locking rod is disengaged from the corresponding plug-in locking groove, under the elastic force of the first elastic member, the ear shell is pressed against the inner side of the headband outer lining.

[0017] The beneficial effect of the present invention is that by arranging a first elastic member at the connection between the headband outer lining and the rotating shaft structure, when the earphone is worn, the ear shell below the rotating shaft connection is blocked by the ear, and the headband outer lining provides a force to press against the wearer's ear at the ear shell near the rotating shaft structure. The elastic force of the first elastic member can prevent the ear shell from separating from the ear below the rotating shaft connection, so that the ear shell as a whole can be basically in a vertical state and pressed against the ear, thereby improving wearing comfort. 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 structure provided in an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the planar structure of a headphone structure provided in an embodiment of the present invention when the ear shell is against the inner wall of the headphone outer lining;

[0021] Figure 3 A schematic cross-sectional structure diagram of a headset structure provided in an embodiment of the present invention;

[0022] Figure 4 A schematic cross-sectional structure diagram of a connection structure between a lower support arm and a connection block of a headphone structure provided in an embodiment of the present invention;

[0023] Figure 5 for Figure 3 A schematic diagram of a partial cross-section structure in FIG.

[0024] Figure 6 for Figure 5 The enlarged structural diagram at A in the middle;

[0025] Figure 7 for Figure 5 Enlarged structural diagram at B in the middle.

[0026] Description of reference numerals:

[0027] 1. Headband outer lining; 2. Ear shell; 3. Connecting block; 30. Pin; 31. Fan-shaped groove; 32. Sliding block; 4. Locking rod; 40. Recessed portion; 5. Locking groove; 50. Protruding portion; 6. Upper arm; 7. Push block; 8. Extrusion rod; 9. Extrusion groove; 10. Rubber layer; 11. Locking rack; 12. Locking insert; 13. Lower arm; 14. Elastic airbag; 15. Rocker arm; 16. Piston; 17. Avoidance groove. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1 To Attachment Figure 7 The present invention is further described in detail.

[0029] An embodiment of the present invention provides a headphone structure, comprising a head-mounted outer lining 1 and two ear shells 2 arranged at both ends of the head-mounted outer lining 1, wherein the ear shells 2 are connected to the ends of the head-mounted outer lining 1 via a rotating shaft structure, and a first elastic member is provided at the connection between the head-mounted outer lining 1 and the rotating shaft structure, and based on the elastic force of the first elastic member, the ear shells 2 have a tendency to always stick to the inner side of the head-mounted outer lining 1, and the stiffness coefficient of the first elastic member is smaller than the stiffness coefficient of the head-mounted outer lining 1.

[0030] Specifically, the head-mounted outer lining 1 is an arc-shaped structure with elasticity, which provides a clamping force for the two ear shells 2 to be tightly attached to the wearer's ears. The ear shells 2 are provided with speakers inside to provide vocal services for the wearer. The head-mounted outer lining 1 provides elastic force for the two ear shells 2 to approach each other so that the earphones can be clamped on the wearer's head. However, after the earphones are worn, the elastic force of the head-mounted outer lining 1 is always present, and the shaft structure used in the prior art will make the elastic force of the head-mounted outer lining 1 act more concentratedly on the wearer's head, that is, as mentioned in the background technology, the position where the upper support arm 6 is connected to the shaft cannot be deflected in the opposite direction (the opposite direction of the deflection direction when the ear shells 2 are folded and attached to the head-mounted outer lining 1), and the position below the shaft connection on the ear shell 2 is where the force is more concentrated. When it contacts the wearer's ears, it will obviously cause discomfort to the wearer.

[0031] For ease of description and understanding, the deflection of the ear shell 2 toward the inner wall of the head-mounted outer lining 1 is inward deflection, and vice versa, it is outward deflection. The rotation of the ear shell 2 about the rotation axis between itself and the connecting block 3 is self-rotation.

[0032] Therefore, in order to solve the above problems, in this embodiment, the rotating shaft structure at the connection between the ear shell 2 and the head-mounted outer lining 1 includes a connecting block 3, and the connecting block 3 is rotatably connected to the end of the head-mounted outer lining 1 through a pin 30. A fan-shaped groove 31 is provided on the connecting block 3, and a slider 32 is slidably provided in the fan-shaped groove 31. The slider 32 is fixed to the ear shell 2, and the axial direction of the rotating axis of the end of the head-mounted outer lining 1 and the connecting block 3 is perpendicular to the axial direction of the rotating axis of the corresponding ear shell 2 and the connecting block 3, that is, the ear shell 2 can be deflected outward or inward and can also rotate at the same time, so that the multi-directional adjustment of the ear shell 2 can be achieved, and the swing range between the connecting block 3 and the end of the head-mounted outer lining 1 is 0 to 180°, that is, when the ear shell 2 is against the inner wall of the head-mounted outer lining 1, it can be deflected outward by 180° with this as the rotation starting point, and a first elastic member is provided at the connection between the connecting block 3 and the head-mounted outer lining 1, and the elastic force of the first elastic member makes the connection The ear shell 2 has a tendency to deflect inwardly due to the block 3, and the elastic force of the first elastic member is not enough to overcome the elastic force from the head-mounted outer lining 1. Therefore, when wearing the earphones, under the combined action of the elastic forces of the head-mounted outer lining 1 and the first elastic member, the ear shell 2 should deflect inwardly, and its lower end is close to the ear, and its upper end is away from the ear. In an inclined state, the position of the ear shell 2 below the connection between the connecting block 3 and the head-mounted outer lining 1 will be obstructed by the wearer's ear. In this way, under the action of the elastic force of the head-mounted outer lining 1, the ear shell 2 deflects outwardly about the rotation axis of the connecting block 3 and the head-mounted outer lining 1, and the ear shell 2 gradually deflects from an inclined state to a basically vertical state. Generally, the ear of a wearer is basically in a vertical plane shape. After the ear shell 2 is in a vertical shape, the area of ​​contact with the ear becomes larger, and the first elastic member can provide a force for the ear shell 2 to contact the ear, which is equivalent to partially balancing the elastic force of the head-mounted outer lining 1 and the elastic force of the first elastic member, thereby improving the wearing comfort.

[0033] The beneficial effect of this embodiment is that by arranging the first elastic member at the connection between the head-mounted outer lining 1 and the rotating shaft structure, when the earphone is worn, the ear shell 2 below the rotating shaft connection is blocked by the ear, and the head-mounted outer lining 1 provides a force to press against the wearer's ear at the ear shell 2 near the rotating shaft structure. The elastic force of the first elastic member can prevent the ear shell 2 from separating from the ear below the rotating shaft connection, so that the ear shell 2 as a whole can be basically in a vertical state and pressed against the ear, thereby improving wearing comfort.

[0034] Preferably, the rotating shaft structure includes a connecting block 3 arranged between each end of the head-mounted outer lining 1 and the corresponding ear shell 2, and the axial direction of the rotating shaft between the end of the head-mounted outer lining 1 and the connecting block 3 is perpendicular to the axial direction of the rotating shaft between the corresponding ear shell 2 and the connecting block 3; each end of the head-mounted outer lining 1 is slidably provided with a locking rod 4, and in the sliding direction, a second elastic member is connected between the locking rod 4 and the head-mounted outer lining 1, and a plurality of locking grooves 5 are provided on the connecting block 3, and based on the elastic force of the second elastic member, the locking rod 4 has a tendency to be plugged into any locking groove 5, and when the locking rod 4 is plugged into any locking groove 5, the elastic force of the head-mounted outer lining 1 and the elastic force of the first elastic member are not sufficient to drive relative rotation between the connecting block 3 and the end of the head-mounted outer lining 1.

[0035] Specifically, in the aforementioned embodiment, when wearing the earphones, it is necessary to adjust the positions of the two ear shells 2 to improve the wearing comfort. However, during the adjustment process, the head-mounted outer lining 1 and the first elastic member always have elastic force. Then, during the wearing process, when adjusting the position of the ear shell 2, it will cause discomfort to the wearer. Therefore, a structure is required to perform temporary positioning after each adjustment of the position of the ear shell 2 to prevent the elastic force of the head-mounted outer lining 1 and the first elastic member from always squeezing the ear. That is, a locking rod 4 is slidably arranged at each end of the head-mounted outer lining 1, and a plurality of locking grooves 5 are provided on the connecting block 3. The plurality of locking grooves 5 are arranged in an arc shape, and the center of the circle is on the pin 30. In the sliding direction of the locking rod 4, a second elastic member is arranged between the locking rod 4 and the head-mounted outer lining 1. Based on the elastic force of the second elastic member, the locking rod 4 and any locking member are locked. The locking grooves 5 have a tendency to be plugged in, that is, when any locking groove 5 is aligned with the locking rod 4, under the elastic force of the second elastic member, the locking rod 4 will be plugged in with the corresponding locking groove 5, but in order to achieve the positioning after each adjustment of the ear shell 2, and the plugging of the locking rod 4 and the locking groove 5 is not hindered when the position of the ear shell 2 needs to be adjusted. Further, when the locking rod 4 is plugged in with any locking groove 5, the elastic force of the head-mounted outer lining 1 and the elastic force of the first elastic member are not sufficient to drive the connection block 3 and the end of the head-mounted outer lining 1 to rotate relative to each other, and when the wearer manually adjusts the position of the ear shell 2, the elastic force of the second elastic member can be overcome, so that the locking groove 5 acts in the reverse direction to squeeze the locking rod 4 out of it, so that the portion between adjacent locking grooves 5 and the locking rod 4 can form an extrusion effect through wedge cooperation.

[0036] Furthermore, the locking groove 5 includes a side with a protrusion 50, the locking rod 4 is provided with a recessed portion 40, and the end of the head-mounted outer lining 1 is provided with an extrusion piece; the locking rod 4 and the locking groove 5 are plugged into each other in two states: in the first state, based on the elastic force of the second elastic member, the locking rod 4 and the locking groove 5 are not fully plugged into each other, at this time, the protrusion 50 and the recessed portion 40 are not plugged into each other, and the wearer can manually adjust the deflection of the ear shell 2; in the second state, the locking rod 4 and the locking groove 5 are fully plugged into each other by pressing the extrusion piece, and based on the elastic force of the first elastic member, when the locking rod 4 and the locking groove 5 are plugged into each other, the protrusion 50 and the recessed portion 40 are plugged into each other.

[0037] Specifically, in the aforementioned embodiment, based on the elastic force of the second elastic member, the locking rod 4 and the locking groove 5 can be plugged into the ear shell 2 to lock the position. However, when subjected to external force (in the aforementioned embodiment, when the wearer manually adjusts the position of the ear shell 2, it is an external force), the locking rod 4 and the locking groove 5 can be disengaged. Then, during the wearing process of the earphone, if an accidental collision occurs, causing the locking rod 4 to be disengaged from the locking groove 5, it may cause the earphone to fall off or be uncomfortable to wear. Therefore, in this embodiment, a protrusion 50 is provided in each locking groove 5, and one side of the protrusion 50 is close to the inner side of the head-mounted outer lining 1, and then a recessed portion 40 is correspondingly provided on the locking rod 4. Then, when the position of the ear shell 2 needs to be adjusted during the wearing process of the earphone, the elastic force of the second elastic member is used to make the locking rod 4 and the corresponding lock The locking groove 5 is inserted, but the locking rod 4 is not completely inserted into the locking groove 5 at this time, that is, the protrusion 50 is not inserted into the recessed portion 40. When the wearer manually adjusts the position of the ear shell 2, the portion between adjacent locking grooves 5 can form a wedge-shaped extrusion on the end of the locking rod 4. After adjusting the position of the ear shell 2, in order to avoid the above-mentioned problem caused by external force, an extrusion piece is provided at each end of the head-mounted outer lining 1. At this time, the wearer drives the locking rod 4 to be completely inserted into the corresponding locking groove 5 by pressing the extrusion piece, and the ear shell 2 tends to deflect inwardly under the elastic force of the first elastic piece. In this way, the ear shell 2 drives the connecting block 3 to deflect inwardly, which will make the protrusion 50 plug into the recessed portion 40, so that the connecting block 3 is completely locked, so that the ear shell 2 can always remain in contact with the ear in a basically parallel manner.

[0038] Preferably, the head-mounted outer lining 1 includes a main body of an arc-shaped structure and two upper arms 6 slidably inserted at both ends of the main body, there is friction damping between the upper arms 6 and the main body, and the locking rod 4 is slidably arranged on the upper arms 6; specifically, due to the different sizes of heads of different wearers, it is necessary to adjust the overall encirclement range of the earphone according to needs, then preferably, an upper arm 6 is slidably set at both ends of the head-mounted outer lining 1, and there is friction damping between the upper arms 6 and the head-mounted outer lining 1, that is, after adjusting the encirclement range, the friction damping can achieve a certain degree of limitation.

[0039] In a preferred embodiment, the extrusion member includes a push block 7 slidably arranged on the upper support arm 6, the sliding direction of the push block 7 is perpendicular to the sliding direction of the locking plug rod 4, an extrusion rod 8 is fixedly connected to the push block 7, an extrusion groove 9 is provided on the locking plug rod 4, the extrusion rod 8 is slidably connected to the extrusion groove 9 at the corresponding position, and a rubber layer 10 is arranged on the inner and outer sides of the end of the body corresponding to the upper support arm 6. In the stroke of pushing the push block 7 toward the inside, the extrusion rod 8 squeezes the extrusion groove 9 to drive the locking plug rod 4 and the locking groove 5 from being not fully inserted to being fully inserted.

[0040] Specifically, the push block 7 is a rectangular parallelepiped structure, which is slidably arranged on the upper support arm 6, and the sliding direction is perpendicular to the sliding direction of the locking plug rod 4, wherein the extrusion groove 9 on the locking plug rod 4 is inclined, with the lower end facing outward and the high end facing inward. When the push block 7 drives the extrusion rod 8 to slide inward, the extrusion rod 8 and the extrusion groove 9 are wedge-shaped to form an extrusion effect, that is, the extrusion rod 8 gives the extrusion groove 9 a downward force, thereby driving the locking plug rod 4 to be plugged into the corresponding locking groove 5. Conversely, the extrusion rod 8 gives the extrusion groove 9 an upward force, so that the locking plug rod 4 is disengaged from the corresponding locking groove 5. When adjusting the position of the ear shell 2, the locking plug rod 4 is disengaged from the locking groove 5 along the sliding direction when it is partially squeezed between two adjacent locking grooves 5, so the extrusion The rod 8 should not form an obstacle to the locking rod 4, that is, an avoidance groove 17 is provided on the locking rod 4 near the extrusion groove 9. When the locking rod 4 and the locking groove 5 are not fully plugged in, the rotation of the connecting block 3 produces an extrusion effect on the locking rod 4, and the avoidance groove 17 is plugged in with the extrusion rod 8, wherein the rubber layer 10 can play a protective role, and the pushing block 7 can be pushed by pressing the rubber layer 10. In addition, the length of the pushing block 7 is greater than the width of the corresponding upper support arm 6, but less than the width of the head-mounted outer lining 1, so the pushing block 7 can limit the upper support arm 6 from being separated from the head-mounted outer lining 1 along the plug-in direction. When the locking rod 4 and the locking groove 5 are fully plugged in, the pushing block 7 contacts with the inner rubber layer 10, that is, the pushing block 7 can be achieved by pressing the rubber layer 10.

[0041] Furthermore, a locking rack 11 is provided at the end of the body near the inner rubber layer 10, and a locking tooth 12 is slidably provided on the locking rod 4 near the extrusion groove 9. In the stroke from the locking rod 4 and the locking groove 5 from not fully inserted to fully inserted, the extrusion rod 8 drives the locking tooth 12 to engage with the locking rack 11 to limit the sliding of the upper arm 6 on the body.

[0042] Specifically, the upper arm 6 is pulled out or inserted into the headband outer lining 1 for a certain distance, and the overall surrounding range of the earphone can be adjusted to fit the wearers of different head sizes. In the process of wearing the earphone, especially when the wearer is moving, vibration will inevitably occur, causing the upper arm 6 to extend from the headband outer lining 1, which will cause the earphone to fall off. Therefore, in this embodiment, a locking rack 11 is installed at the end of the headband outer lining 1, and a locking insert 12 is slidably arranged on the locking insert rod 4, and the sliding direction of the locking insert 12 is aligned with the push block 7. The locking pinion 12 and the locking rack 11 are respectively driven by the extrusion rod 8 and the locking pinion 12. The locking pinion 12 and the locking pinion 11 are respectively driven by the extrusion rod 8 and the locking rack 11. The locking pinion 12 and the locking pinion 4 ...12 are respectively driven by the extrusion rod 8 and the locking rack 11. The locking pinion 12 and the locking pinion 12 are respectively driven by the extrusion rod 8 and the locking rack 11. The locking pinion 12 and the locking pinion 12 are respectively driven by the extrusion rod 8 and the locking rack 11. The locking pinion 12 and the locking pinion 12 are respectively driven by the extrusion rod 8 and the locking rack 11. The locking pinion 12 and the locking pinion 12 are respectively driven by the extrusion rod 8 and the locking rack 11. The locking pinion 12 and the

[0043] Preferably, the ear shell 2 includes a main body and a lower arm 13 fixed to the main body, the connecting block 3 is rotatably connected to the lower arm 13, and the main body is also covered with an elastic airbag 14; specifically, the elastic airbag 14 can make wearing more comfortable.

[0044] Furthermore, a plurality of the locking grooves 5 are arranged together on a rocker arm 15, and the rocker arm 15 is swingably arranged on the connecting block 3, and a third elastic member is provided at its swinging position, and under the elastic force of the third elastic member, any locking groove 5 tends to be plugged into the locking plug rod 4, and the elastic force of the third elastic member is not enough to overcome the elastic force of the elastic airbag 14, and a one-way vent valve is provided on the elastic airbag 14 in a detachable manner, and a piston member 16 is provided between the elastic airbag 14 and the rocker arm 15; in the compression stroke of the elastic airbag 14, the internal gas is discharged through the one-way vent valve, and in the rebound stroke of the elastic airbag 14, the rocker arm 15 is driven away from the locking plug rod 4 by the piston member 16, and after the locking plug rod 4 is disengaged from the correspondingly plugged locking groove 5, under the elastic force of the first elastic member, the ear shell 2 is pressed against the inner side of the head-mounted outer lining 1.

[0045] Specifically, the earphones may accidentally fall off during wearing, so it is necessary to protect the earphones from falling, especially to protect the electronic devices in the ear shell 2. Therefore, in the present embodiment, the length and width of the elastic airbag 14 are larger than those of the main body. Then, when the earphones are separated from the wearer's ears, the ear shell 2 can be deflected inwards and pressed against the inner wall of the head-mounted outer lining 1. In this way, the head-mounted outer lining 1 (which is elastic and can provide buffering when falling) and the two elastic airbags 14 can be used to protect the electronic devices. That is, multiple locking grooves 5 are arranged together on a swing rod. Under the elastic force of the third elastic member, any locking groove 5 of the swing rod tends to be plugged into the locking plug rod 4. When the earphones are worn, the elastic airbag 14 is squeezed by the wearer's ears, and the internal gas is discharged through a one-way vent valve (this is in the prior art, will not be repeated, and is not shown in the figure). Then, the deformation of the elastic airbag 14 adapts to the shape of the ear, so as to further The wearing comfort is improved, and the elastic airbag 14 cannot rebound unless the earphone is removed from the head. When the earphone falls off the head, the elastic airbag 14 rebounds, and the one-way ventilation valve cannot allow external air to enter, which will generate a force on the piston member 16, so that the piston member 16 (this is the prior art and will not be repeated) overcomes the elastic force of the third elastic member, drives the swing rod 15 to deflect, and the deflection of the swing rod 15 causes the locking plug 4 to be disengaged from the corresponding locking groove 5 (herein, the swing direction of the swing rod 15 is tangentially parallel to the plugging direction of the protrusion 50 and the recessed portion 40), so that the locking of the connecting block 3 is released, and under the elastic force of the first elastic member, the connecting block 3 drives the ear shell 2 to deflect inwardly and abut against the inner wall of the head-mounted outer lining 1, thereby protecting the earphone, and when the swing rod 15 needs to be reset, the one-way ventilation valve can be manually removed to allow external air to enter the elastic airbag 14, and the swing rod 15 will be reset under the elastic force of the third elastic member.

[0046] 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 structure, comprising a headband lining and two ear shells arranged at both ends of the headband lining, characterized in that: The ear shell is connected to the end of the head-mounted outer lining by a rotating shaft structure, and a first elastic member is provided at the connection between the head-mounted outer lining and the rotating shaft structure. Based on the elastic force of the first elastic member, the ear shell has a tendency to always stick to the inner side of the head-mounted outer lining, and the stiffness coefficient of the first elastic member is smaller than the stiffness coefficient of the head-mounted outer lining; The rotating shaft structure includes a connecting block provided between each end of the head-mounted outer lining and the corresponding ear shell, and the axial direction of the rotating shaft between the end of the head-mounted outer lining and the connecting block is perpendicular to the axial direction of the rotating shaft between the corresponding ear shell and the connecting block; A locking rod is slidably provided at each end of the headgear outer lining, and a second elastic member is connected between the locking rod and the headgear outer lining in the sliding direction, and a plurality of locking grooves are provided on the connecting block. Based on the elastic force of the second elastic member, the locking rod has a tendency to be plugged into any locking groove. When the locking rod is plugged into any locking groove, the elastic force of the headgear outer lining and the elastic force of the first elastic member are insufficient to drive the connecting block and the end of the headgear outer lining to rotate relative to each other. The locking groove includes a side with a protrusion, the locking rod is provided with a recessed portion, and the end of the head-mounted outer lining is provided with an extrusion piece; the locking rod and the locking groove are connected in two states: in the first state, based on the elastic force of the second elastic member, the locking rod and the locking groove are not fully connected, at this time the protrusion and the recessed portion are not connected, and the wearer can manually adjust the deflection of the ear shell; in the second state, the locking rod and the locking groove are fully connected by pressing the extrusion piece, and based on the elastic force of the first elastic member, when the locking rod and the locking groove are connected, the protrusion and the recessed portion are connected.

2. The headphone structure according to claim 1, characterized in that: The head-mounted outer lining comprises a main body of an arc-shaped structure and two upper arms slidably plugged at both ends of the main body, friction damping exists between the upper arms and the main body, and the locking plug rod is slidably arranged on the upper arms.

3. The headphone structure according to claim 2, characterized in that: The extrusion member includes a push block slidably arranged on the upper support arm, the sliding direction of the push block is perpendicular to the sliding direction of the locking rod, an extrusion rod is fixedly connected to the push block, an extrusion groove is provided on the locking rod, the extrusion rod is slidably connected to the extrusion groove at the corresponding position, and rubber layers are arranged on the inner and outer sides corresponding to the end of the body and the upper support arm. In the stroke of pushing the push block toward the inside, the extrusion rod squeezes the extrusion groove to drive the locking rod and the locking groove from being not fully inserted to being fully inserted.

4. The headphone structure according to claim 3, characterized in that: The locking rod is provided with an avoidance groove near the extrusion groove. When the locking rod is not fully plugged into the locking groove, the rotation of the connecting block produces an extrusion effect on the locking rod, and the avoidance groove is plugged into the extrusion rod.

5. The headphone structure according to claim 3, characterized in that: The length of the push block is greater than the width of the corresponding upper support arm, and when the locking rod is fully inserted into the locking groove, the push block contacts the inner rubber layer.

6. The headphone structure according to claim 3, characterized in that: A locking rack is provided at the end of the body near the inner rubber layer, and a locking tooth is slidably provided on the locking rod near the extrusion groove. In the stroke from the locking rod and the locking groove from being never fully inserted to being fully inserted, the extrusion rod drives the locking tooth to engage with the locking rack to limit the sliding of the upper support arm on the body.

7. The headphone structure according to claim 3, characterized in that: The ear shell comprises a main body and a lower support arm fixedly connected to the main body, the connecting block is rotatably connected to the lower support arm, and the main body is also covered with an elastic air bag.

8. The headphone structure according to claim 7, characterized in that: A plurality of the locking grooves are arranged together on a swing rod, the swing rod is swingably arranged on the connecting block, and a third elastic member is provided at the swinging position, under the elastic force of the third elastic member, any locking groove has a tendency to be plugged with the locking plug rod, the elastic force of the third elastic member is insufficient to overcome the elastic force of the elastic airbag, a one-way vent valve is provided on the elastic airbag in a detachable manner, and a piston member is provided between the elastic airbag and the swing rod; During the compression stroke of the elastic airbag, the internal gas is discharged through the one-way vent valve. During the rebound stroke of the elastic airbag, the piston member drives the rocker arm away from the locking rod. After the locking rod is disengaged from the corresponding locking groove, the ear shell is pressed against the inner side of the headband lining under the elastic force of the first elastic member.

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