CN217283327U - Headband assembly and headphone - Google Patents

Abstract

The utility model discloses a headband component and a head-wearing earphone, wherein the end part of a steel headband is provided with a through hole which runs through the inner side and the outer side of the steel headband, the through hole extends to the middle part of the steel headband along the length direction of the steel headband, and a telescopic arm comprises a fixed body and a sliding shell; the fixing body is embedded in the through hole and extends along the length direction of the through hole; the sliding shell is sleeved on the fixed body and the steel head band and is in sliding connection with the steel head band, so that the sliding shell can stretch out or retract from the end part of the steel head band along the length direction of the steel head band, the fixed body and the sliding shell are mutually limited, and the length of the sliding shell stretching out from the end part of the steel head band is adjusted. The utility model discloses technical scheme aims at reducing the thickness and the weight of bandeau subassembly, realizes headphone's frivolous design.

Description

Headband assembly and headphone

Technical Field

The utility model relates to the technical field of earphones, in particular to bandeau subassembly and headphone.

Background

With the development of electronic products and the popularization of mobile terminals, earphones are also widely used, and among them, headphones are also popular with people. Existing headsets generally have adjustable headband assemblies to fit the head shape for a more comfortable experience for the consumer. The existing headband component mainly comprises a steel headband and a plastic telescopic arm, wherein the steel headband is usually designed into a hair band shape with radian so as to fit the head of a human body, the plastic telescopic arm comprises a sliding shell and a fixed body, the sliding shell slides on the steel headband and is used for connecting an earphone shell to adjust the relative position of the earphone shell and the ear of the human body, and the fixed body can fix the sliding shell after the position is adjusted. Because fixed body is fixed the laminating on the surface of steel headband through retaining member locking's mode, the fixed mode of this kind of heap makes the headband subassembly thickness increase after the assembly, does not satisfy the frivolous design trend of headphone. Meanwhile, the steel head band has large self weight, and when the wearing time is too long, the head of the headset is pressed too much, so that the wearing experience is influenced.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a bandeau subassembly and headphone aims at reducing the thickness and the weight of bandeau subassembly, realizes headphone's frivolous design.

In order to achieve the above object, the present invention provides a headband assembly for use in a headset, the headband assembly comprising:

the end part of the steel head band is provided with a through hole penetrating through the inner side and the outer side of the steel head band, and the through hole extends to the middle part of the steel head band along the length direction of the steel head band; and

the telescopic arm comprises a fixed body and a sliding shell; the fixing body is embedded in the through hole and extends along the length direction of the through hole; the sliding shell is sleeved on the fixed body and the steel head band and is in sliding connection with the steel head band, so that the sliding shell can extend out or retract from the end part of the steel head band along the length direction of the steel head band;

wherein, fixed body and slip casing are spacing each other to adjust the length that the slip casing stretches out by the tip of steel bandeau.

In an embodiment of the present invention, the two sides of the fixing body are both formed with mounting slots in an inward concave manner, the through hole has two inner sides arranged side by side, and each inner side is inserted into one mounting slot.

In an embodiment of the present invention, an insertion opening is provided at an end of the through hole far from the end of the headband, a width of the insertion opening is larger than a width of an end of the through hole near the end of the headband, and the fixing body slides into the through hole through the insertion opening, so that two inner side edges of the through hole, which are arranged side by side, slide into the two mounting slots respectively.

In an embodiment of the present invention, the fixing body is an elastic member.

The utility model discloses an in the embodiment, the inboard of fixed body is equipped with fixed shell fragment, and the slip casing is equipped with a plurality of shell fragment tooth positions towards the inboard surface of fixed shell fragment, and a plurality of shell fragment tooth positions set up along the slip direction interval of slip casing in proper order, and fixed shell fragment card is held between two adjacent shell fragment tooth positions to the slip of restriction slip casing.

In an embodiment of the present invention, the number of the through holes is two, and the two through holes are respectively disposed at two ends of the steel headband; the number of the telescopic arms is two, and the two telescopic arms are respectively matched with the two ends of the steel head belt.

In an embodiment of the present invention, the steel headband is further provided with a sheath groove, and the sheath groove is disposed between the two through holes; the head band assembly also comprises a protective sleeve and a fixing piece, and the protective sleeve is sleeved on the steel head band and fixed in the protective sleeve groove; the fixing piece is sleeved and fixed on the steel head belt and located at the end part of the sheath to limit the sheath.

In an embodiment of the present invention, the fixing member includes a fixed upper cover and a fixed lower cover, the fixed lower cover is located inside the steel headband, and the fixed upper cover is covered on the fixed lower cover by the outer side of the steel headband;

the inner side of the fixed upper cover is convexly provided with a positioning column, the outer side edge of the steel head belt is concavely provided with a positioning notch, and the side edge of the fixed body is concavely provided with a limiting notch; the limiting notch and the positioning notch are overlapped together in the thickness direction of the steel head belt; the positioning column penetrates through the limiting notch and the positioning notch in sequence so as to fix the fixing body on the steel head band.

The utility model discloses an in the embodiment, fixed body and sheath all are equipped with the line hole, and the bandeau subassembly still includes the bandeau line, and the bandeau line is worn to locate in the line hole.

The utility model also provides a headphone, including the bandeau subassembly.

The utility model discloses the perforating hole has been seted up on the steel bandeau of technical scheme bandeau subassembly, the weight of steel bandeau self has been reduced, the fixed body of flexible arm inlays and locates in the perforating hole, the direct mode of locating steel bandeau surface with fixing the body subsides among the prior art has been replaced, the position relation of steel bandeau and flexible arm, it is fixed to become embedded fixed from original heap, the thickness after steel bandeau and fixed body assembly has been reduced, satisfy the frivolous design direction of bandeau subassembly, accord with the design trend of bandeau subassembly lightweight and miniaturization, can design out lighter thinner bandeau subassembly, more schemes are provided for the design of headphone.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the headset of the present invention;

FIG. 2 is an exploded view of the headgear assembly of FIG. 1;

FIG. 3 is an exploded view of FIG. 2 from another perspective;

FIG. 4 is an exploded view of FIG. 2 from yet another perspective;

FIG. 5 is an assembled schematic view of the headband assembly;

FIG. 6 is a schematic structural view of a steel headband;

FIG. 7 is a schematic view of the assembly of the fixing body and the steel headband;

fig. 8 is a schematic structural view of the fixing body.

The reference numbers indicate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a headband assembly 100 applied to a headset 1000, the headband assembly 100 including:

the steel head belt 10 is characterized in that a through hole 11 penetrating through the inner side and the outer side of the steel head belt 10 is formed in the end part of the steel head belt 10, and the through hole 11 extends towards the middle of the steel head belt 10 along the length direction of the steel head belt 10; and

a telescopic arm 20, the telescopic arm 20 including a fixed body 21 and a sliding housing 23; the fixing body 21 is embedded in the through hole 11 and extends along the length direction of the through hole 11; the sliding shell 23 is sleeved on the fixed body 21 and the steel head strip 10 and is in sliding connection with the steel head strip 10, so that the sliding shell 23 can extend out or retract from the end part of the steel head strip 10 along the length direction of the steel head strip 10;

wherein the fixed body 21 and the sliding housing 23 are mutually limited to adjust the length of the sliding housing 23 extending from the end of the steel headband 10.

The utility model discloses a perforating hole 11 has been seted up on the steel bandeau 10 of technical scheme bandeau subassembly 100, the weight of steel bandeau 10 self has been reduced, the fixed body 21 of flexible arm 20 inlays and locates in perforating hole 11, the mode on steel bandeau 10 surface is located in direct pasting with fixed body 21 among the prior art has been replaced, the position relation of steel bandeau 10 and flexible arm 20, it is embedded fixed to become from original heap is fixed, the thickness after steel bandeau 10 and fixed body 21 assemble has been reduced, satisfy the design direction of 100 frivolousizations of bandeau subassembly, accord with the design trend of 100 lightweight and miniaturization of bandeau subassembly, can design lighter thinner bandeau subassembly 100, design for headphone 1000 provides more schemes.

The comfort level that headphone 1000 wore is relevant with weight, and is different on the steel headband 10 surface with fixing body 21 through retaining member 70 such as screw with current bandeau subassembly 100, the utility model discloses a bandeau subassembly 100 sets up perforating hole 11 on steel headband 10 and is used for inlaying and establishes fixing body 21. The through hole 11 reduces the weight of the steel headband 10, and improves the wearing comfort of the headphone 1000. Meanwhile, in the production of the steel headband 10, the steel headband 10 needs to be subjected to appearance treatment, and a common appearance treatment method of the steel headband is electroplating, which is a thin film preparation technology, and electroplating material is deposited on the plated steel headband 10 through Physical Vapor Deposition (PVD). After the through hole 11 is formed in the steel headband 10, the area of the surface of the steel headband 10 needing electroplating is reduced, the appearance treatment cost of the steel headband 10 is reduced, the production cost of the steel headband 10 is saved, and the environment is protected while emission reduction is realized.

Referring to fig. 6 to 8, in an embodiment of the present invention, both sides of the fixing body 21 are recessed inwards to form mounting slots 211, the through hole 11 has two inner sides 111 arranged side by side, and each inner side 111 is inserted into one mounting slot 211.

The utility model relates to an among the technical scheme of an embodiment, through installation slot 211, at the in-process of the steel bandeau 10 of packing into fixed body 21, only need align installation slot 211 with the inboard side 111 of perforating hole 11, can slide into perforating hole 11 with fixed body 21 smoothly in, two inboard side 111 inseparable cards that set up side by side hold fixed body 21, prevent that it from rocking, compare with prior art, the utility model discloses a step of the fixed body 21 of installation has been simplified to bandeau subassembly 100, has improved assembly efficiency.

In the process of installing the fixed body 21 into the through hole 11, when the contact area between the inner side 111 and the installation slot 211 is increased, the frictional resistance received by the installation slot 211 on the inner side 111 is increased, the fixed body 21 is difficult to slide into the through hole 11, in order to reduce the frictional resistance between the inner side 111 and the installation slot 211, the assembly efficiency is improved, salient points can be arranged in the installation slot 211 at intervals, the salient points of the installation slot 211 are abutted to the inner side 111, the contact area between the installation slot 211 and the inner side 111 is reduced due to the arrangement of the salient points, the frictional resistance received by the fixed body 21 when the fixed body slides in the through hole 11 is reduced, the surface contact is improved into point contact, and the assembly efficiency is improved.

Referring to fig. 6 to 8, in an embodiment of the present invention, an insertion opening 113 is disposed at an end of the through hole 11 away from the end of the headband 10, a width of the insertion opening 113 is larger than a width of the through hole 11 near the end of the headband 10, and the fixing body 21 slides into the through hole 11 through the insertion opening 113, so that two inner side edges 111 of the through hole 11, which are disposed side by side, slide into the two mounting slots 211 respectively.

The utility model relates to an among the technical scheme of an embodiment, installation slot 211 is the inside sunken formation in fixed body 21 side, and with the inseparable butt of inboard side 111 of perforating hole 11, the width of installation slot 211 is less than the width of the rest of fixed body 21, when assembling fixed body 21 to steel headband 10, because of the rest of fixed body 21 is too big, can't directly pack into in the perforating hole 11, need to set up the inserted hole 113 that the width is greater than perforating hole 11 in order to insert fixed body 21, make the inboard side 111 of perforating hole 11 slide in the installation slot 211 on the fixed body 21, the realization is fixed body 21 on steel headband 10 with fixed body 21. The design of inserted hole 113 can make installation slot 211 and inboard edge 111 closely cooperate, need not leave too big installation space for the assembly of fixed body 21 in the design of perforating hole 11, leads to the unable inseparable butt of inboard edge 111 and installation slot 211, has improved the stability of installing in the fixed body 21 structure of headband 10, makes fixed body 21 possess the detachable function simultaneously, only needs the fixed body 21 of reverse slip to take out.

Referring to fig. 8, in an embodiment of the present invention, the fixing body 21 is an elastic member.

The utility model discloses an among the technical scheme of an embodiment, it is different with the fixed body 21 of current plastics, the utility model discloses a fixed body 21 be the elastic component, the material be thermoplastic polyurethane elastomer (TPU) or thermoplastic elastomer (TPE) etc. possess elastic rubber, do not make the limited to the kind of rubber here.

In the production process of the existing headgear assembly 100, the tolerance after molding is large when the steel headgear 10 with radian is produced in mass, it is difficult to control the arc of each steel headgear 10 to be uniform, and the plastic fixing body 21 is made of thermoplastic material prepared by taking polycarbonate, acrylonitrile-butadiene-styrene copolymer and mixture (PC/ABS) as materials, and the shape can not be changed after molding. The fixed body 21 of the same plastics of steel headband 10 and arc that each arc is different is difficult to laminate completely, leads to the unstable structure, when opening and closed slip casing 23, slip casing 23 slides along steel headband 10 and blocks the shell easily, influences the experience of wearing. The utility model discloses in use rubber to have elasticity as the fixed body 21 that the material was made, even batch production's steel headband 10 has tolerance, fixed body 21 also can closely laminate on steel headband 10, and the setting of the closely laminating of fixed body 21 is stretched out the back at slip casing 23, can not press from both sides the hair because there is the space between fixed body 21 and the steel headband 10 yet. In the process of long-term use, after the steel headband 10 deforms, the fixing body 21 with elasticity can change the shape along with the deformation, so that the service life of the headband assembly 100 is prolonged, and the structural stability of the headband assembly 100 is enhanced.

Referring to fig. 3 and 4, in an embodiment of the present invention, the inner side of the fixing body 21 is provided with a fixing elastic piece 213, the inner side surface of the sliding housing 23 facing the fixing elastic piece 213 is provided with a plurality of elastic piece tooth positions 235, the elastic piece tooth positions 235 are sequentially spaced along the sliding direction of the sliding housing 23, and the fixing elastic piece 213 is clamped between two adjacent elastic piece tooth positions 235 to limit the sliding of the sliding housing 23.

The utility model provides an among the technical scheme of an embodiment, sliding housing 23 is including sliding upper cover 231 and slip lower cover 233, sliding upper cover 231 cover is established in the headband 10 outside, and with headband 10 sliding connection, so that sliding housing 23 can be followed the length direction of headband 10 and stretched out and retract by the tip of headband 10, slip lower cover 233 and slip upper cover 231 fixed connection, the protruding butt structure 2331 that is equipped with of slip lower cover 233 inboard surface, the protruding anti-disengagement structure 17 that is equipped with of headband 10 inboard surface, when sliding housing 23 stretches out the maximum length, butt structure 2331 and anti-disengagement structure 17 butt, avoid sliding housing 23 to deviate from headband 10, lead to unable reseing.

The inner side of the fixed body 21 is provided with a spring mounting position 217, the fixed spring 213 is arranged on the spring mounting position 217, the inner surface of the sliding lower cover 233 is provided with a plurality of spring tooth positions 235, after the sliding upper cover 231 is assembled and connected with the sliding lower cover 233, the fixed spring 213 is clamped between two adjacent spring tooth positions 235, the distance and height between any two adjacent spring tooth positions 235 are matched with the shape of the fixed spring 213, so that the fixed spring 213 can be clamped, and the fixed spring 213 is prevented from being separated from the spring tooth positions 235.

Since the head shape of each user is different, the relative position of the sliding housing 23 connected to the earphone housing 200 needs to be adjusted to fit the head shape of each user when wearing the headset 1000. When the sliding shell 23 is opened and closed, the fixed elastic sheet 213 has elasticity, and under the action of an external force, the fixed elastic sheet 213 deforms to pass through the elastic sheet tooth positions 235, until the user adjusts the sliding shell 23 according to the head shape, the fixed elastic sheet 213 stops moving and is clamped on some two adjacent elastic sheet tooth positions 235, so that the sliding shell 23 keeps still relative to the steel headband 10, the shape of the adjusted headset 1000 is maintained, and the structural stability of the headset 1000 is improved.

When the fixing body 21 is an elastic member, two ends of the fixing elastic piece 213 are fixed on the elastic piece mounting position 217, and when the fixing elastic piece 213 slides over the elastic piece tooth position 235, the fixing elastic piece 213 is pressed, and two ends of the fixing elastic piece 213 apply pressure to the elastic piece mounting position 217. Because the fixing body 21 has elasticity, it has a buffering effect on the deformation of the fixing elastic sheet 213, so as to urge the deformed fixing elastic sheet 213 to reset, which can prolong the service life of the fixing elastic sheet 213 and improve the structural stability of the headphone 1000.

In order to make the headband assembly 100 thinner, it is necessary to reduce the gap between the sliding lower cover 233 and the steel headband 10, i.e., the gap between the sliding lower cover 233 and the telescopic arm 20. Because the clamping effect of the spring tooth 235 on the fixed spring 213 is related to the depth of the valley formed by two adjacent spring teeth 235, when the gap between the sliding lower cover 233 and the telescopic arm 20 is reduced, the height of the spring tooth 235 is also reduced, so as to prevent the spring tooth 235 from being too high to be abutted against the telescopic arm 20 to generate friction. After the height of the elastic piece tooth positions 235 is shortened, the depth of the valley part formed by two adjacent elastic piece tooth positions 235 is reduced, the clamping effect on the fixed elastic piece 213 is weakened, in order to keep the clamping effect of the sliding shell 23 while reducing the size of the thinned headband assembly 100, a limiting groove 237 is arranged between any two adjacent elastic piece tooth positions 235, and the depth of the valley part of any two adjacent elastic piece tooth positions 235 is relatively deepened by the arrangement of the limiting groove 237, so that the clamping effect of the elastic piece tooth positions 235 on the fixed elastic piece 213 is ensured, and the stability of the headband assembly 100 is improved.

Referring to fig. 6, in an embodiment of the present invention, the number of the through holes 11 is two, and the two through holes 11 are respectively disposed at two ends of the steel headband 10; the number of the telescopic arms 20 is two, and the two telescopic arms 20 are respectively matched with two ends of the steel head belt 10.

Referring to fig. 6, in an embodiment of the present invention, the steel headband 10 is further provided with a sheath groove 13, and the sheath groove 13 is disposed between the two through holes 11; the headband assembly 100 further comprises a protective sleeve 30 and a fixing piece 40, wherein the protective sleeve 30 is sleeved on the steel headband 10 and fixed in the protective sleeve groove 13; the fixing member 40 is sleeved and fixed on the steel head band 10, and the fixing member 40 is located at the end of the sheath 30 to limit the sheath 30.

The utility model discloses an among the technical scheme of an embodiment, sheath groove 13 is located between two perforating holes 11, be equipped with mounting 40 between sheath groove 13 and the perforating hole 11, mounting 40 is arranged in fixing flexible arm 20 and sheath 30 on steel headband 10, wherein, the tip of flexible arm 20 and the tip of sheath 30 stretch into mounting 40 respectively, sheath groove 13 is for lining up the setting, steel headband 10's self weight has further been alleviateed, the lightweight design of headband subassembly 100 has been realized, steel headband 10's surface area reduces simultaneously, steel headband 10's outward appearance treatment cost further reduces. The sheath 30 is used for protecting the head of a human body, and the head is prevented from being directly contacted with the steel headband 10 after the headset is worn, so that the wearing comfort of the headset 1000 is improved.

Referring to fig. 2 to 4, in an embodiment of the present invention, the fixing member 40 includes a fixing upper cover 41 and a fixing lower cover 43, the fixing lower cover 43 is located at an inner side of the steel headband 10, and the fixing upper cover 41 is covered on the fixing lower cover 43 by an outer side of the steel headband 10;

the inner side of the fixed upper cover 41 is convexly provided with a positioning column 411, the outer side edge of the steel head belt 10 is concavely provided with a positioning notch 15, and the side edge of the fixed body 21 is concavely provided with a limiting notch 215; the limiting notch 215 and the positioning notch 15 are overlapped together in the thickness direction of the steel head belt 10; the positioning column 411 sequentially penetrates through the limiting notch 215 and the positioning notch 15 to fix the fixing body 21 on the headband 10.

The utility model discloses an among the technical scheme of an embodiment, fixed lower cover 43 includes lower cover casing 431 and fixed bolster 433, and fixed bolster 433 forms the buckle with fixed body 21 and is connected for closely fix the tip of fixed body 21 on headband 10. The lower cover case 431 is connected to the fixed upper cover 41 through the locking member 70, and presses the fixing bracket 433 and the end of the fixing body 21 therebetween onto the steel headband 10, thereby preventing the structure of the headband assembly 100 from being unstable due to the end of the fixing body 21 tilting. The positioning column 411 passes through the limiting notch 215 and the positioning notch 15, the locking member 70 is inserted from the fixed lower cover 43 and locked in the positioning column 411, the locking member 70 can be various screws, the fixing member 40 further enables the end part of the fixing body 21 to be tightly attached to the steel headband 10, and the stability of the fixing body 21 and the steel headband 10 after assembly is enhanced.

Referring to fig. 8, in an embodiment of the present invention, the fixing body 21 and the sheath are both provided with a wire hole 50, and the headband assembly 100 further includes a headband wire 60, and the headband wire 60 is inserted into the wire hole 50.

The utility model relates to an among the technical scheme of an embodiment, be equipped with the line hole 50 that link up in fixed body 21 and the sheath, the setup of line hole 50 has alleviateed the weight of fixed body 21 and sheath, has further alleviateed the weight of headphone assembly 100, has reduced headphone 1000 to the pressure of head, has improved the comfort that headphone 1000 wore. Meanwhile, the wire hole 50 is opened inside the telescopic arm 20 and the sheath groove 13, so that a storage space for storing the headband wire 60 of the conventional headset 1000 is reduced, the design of the headband assembly 100 tends to be light and thin, and the wearing experience of the headset 1000 is optimized.

Referring to fig. 1 to 8, the present invention further provides a headphone 1000, where the headphone 1000 includes a headphone housing 200 and a headband assembly 100, and the specific structure of the headband assembly 100 refers to the above embodiments, and since this headphone 1000 adopts all technical solutions of all the above embodiments, all beneficial effects brought by the technical solutions of the above embodiments are at least achieved, which is not repeated herein.

Wherein, the earphone shell 200 is connected with the sliding shell 23 of the headband assembly 100, and when the sliding shell 23 slides on the steel headband 10, the relative position of the earphone shell 200 and the ears of a person can be adjusted, so that the headset 1000 adapts to the head shape of a specific user, and the wearing comfort is improved.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the inventive concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims (10)

1. A headband assembly for use with a headset, the headband assembly comprising:

the end part of the steel head band is provided with a through hole penetrating through the inner side and the outer side of the steel head band, and the through hole extends to the middle part of the steel head band along the length direction of the steel head band; and

the telescopic arm comprises a fixed body and a sliding shell; the fixing body is embedded in the through hole and extends along the length direction of the through hole; the sliding shell is sleeved on the fixed body and the steel head band and is in sliding connection with the steel head band, so that the sliding shell can extend out or retract from the end part of the steel head band along the length direction of the steel head band;

wherein the fixed body and the sliding shell are mutually limited so as to adjust the length of the sliding shell extending from the end part of the steel head band.

2. The headband assembly according to claim 1 wherein the fixing body is recessed inwardly on both sides thereof to form mounting slots, the through hole having two inner sides disposed side by side, each of the inner sides being inserted into one of the mounting slots.

3. The headband assembly according to claim 2, wherein the through hole has an insertion opening at an end thereof remote from the distal end of the headband, the insertion opening having a width greater than a width of an end thereof close to the distal end of the headband, the fixing body being slid into the through hole via the insertion opening such that two inner sides of the through hole, which are arranged side by side, slide into the two mounting slots, respectively.

4. The headgear assembly according to claim 2, wherein the fixing body is an elastic member.

5. The headband assembly according to claim 1, wherein the fixed body has a fixed elastic sheet on an inner side thereof, the sliding housing has a plurality of elastic sheet teeth on an inner surface thereof facing the fixed elastic sheet, the elastic sheet teeth are sequentially spaced along a sliding direction of the sliding housing, and the fixed elastic sheet is retained between two adjacent elastic sheet teeth to limit the sliding of the sliding housing.

6. The headband assembly according to claim 1, wherein the number of the through holes is two, and the two through holes are respectively provided at both ends of the steel headband; the number of the telescopic arms is two, and the two telescopic arms are respectively matched with the two ends of the steel head band.

7. The headband assembly of claim 6 wherein the steel headband further comprises a sheath slot disposed between the two through holes; the headband assembly further comprises a protective sleeve and a fixing piece, and the protective sleeve is sleeved on the steel headband and fixed in the protective sleeve groove; the fixing piece is sleeved and fixed on the steel head band and located at the end of the sheath to limit the sheath.

8. The headgear assembly according to claim 7, wherein the fixing member includes a fixing upper cover and a fixing lower cover, the fixing lower cover being located inside the headband, the fixing upper cover being covered to the fixing lower cover by an outside of the headband;

the inner side of the fixed upper cover is convexly provided with a positioning column, the outer side edge of the steel head belt is concavely provided with a positioning notch, and the side edge of the fixed body is concavely provided with a limiting notch; the limiting notch and the positioning notch are overlapped together in the thickness direction of the steel head belt; the positioning column sequentially penetrates through the limiting notch and the positioning notch so as to fix the fixing body on the steel head belt.

9. The headgear assembly according to claim 7, wherein the fixing body and the cover each have a wire hole, the headgear assembly further comprising a headgear cord, the headgear cord being threaded into the wire hole.

10. A headphone comprising the headband assembly of any one of claims 1 to 9.

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