CN218103463U - Telescopic device and earphone - Google Patents

Abstract

The utility model relates to a telescoping device and earphone, the telescoping device includes: the supporting arm is provided with an accommodating cavity with an opening at one side and a communication port communicated with the accommodating cavity, and the communication port is in a circumferential closed-loop structure; the telescopic assembly is arranged in the communication port in a penetrating mode and can slide in the accommodating cavity; the outer cover is arranged at the opening of the accommodating cavity; the fastener is arranged at one end, far away from the communication port, of the support arm in a penetrating manner and is connected with the outer cover; and the covering piece is arranged at one end of the supporting arm far away from the communication port and covers the fastening piece. After the covering piece is installed, the fastener is hidden in the whole telescopic device, the fastener is prevented from being exposed, a user cannot observe the fastener through naked eyes, and therefore the overall consistency of the telescopic device in appearance is improved.

Description

Telescopic device and earphone

Technical Field

The utility model relates to an earphone technical field especially relates to a telescoping device and contain this telescoping device's earphone.

Background

The headset usually includes telescoping device and earmuff, and the earmuff is connected with the telescoping device, through the regulation of telescoping device, can be so that the earmuff of headset can adjust suitable position to satisfy different users' the demand of wearing. However, the conventional telescopic device is usually fixed by a plurality of components through screws, so that the screws are exposed outside the telescopic device and can be detected by naked eyes, and thus the overall consistency of the telescopic device and the whole earphone in appearance is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem be how to improve telescoping device at the whole uniformity in appearance.

The utility model provides a telescoping device, include:

the supporting arm is provided with an accommodating cavity with an opening at one side and a communication port communicated with the accommodating cavity, and the communication port is of a circumferential closed-loop structure;

the telescopic assembly penetrates through the communication port and can slide in the accommodating cavity;

the outer cover is arranged at the opening of the accommodating cavity;

the fastening piece penetrates through one end, far away from the communication port, of the support arm and is connected with the outer cover; and

the covering piece is arranged at one end, far away from the communication port, of the supporting arm and covers the fastening piece.

In one embodiment, the cover further comprises a nut fixed on the inner wall of the outer cover in a hot melting mode, and the fastening piece is connected with the nut.

In one embodiment, the inner wall of the outer cover is provided with a mounting post, the mounting post is provided with a mounting hole, and the nut is at least partially received in the mounting hole.

In one embodiment, a sinking groove is formed in one side of the supporting arm close to the human body, and the covering piece is accommodated in the sinking groove and is rotatably connected with the supporting arm.

In one embodiment, the cover further comprises a connecting line, and the connecting line is arranged in the cover in a penetrating mode.

In one embodiment, the connecting line comprises a flexible section capable of being bent and extended, one end of the flexible section is fixed on the supporting arm, the other end of the flexible section is fixed on the flexible assembly, and the flexible section is in a loose and non-tight state in the process of extending and retracting the flexible assembly relative to the supporting arm.

In one embodiment, the outer cover includes a buckle, and the support arm has a buckle hole, and the buckle is matched with the buckle hole.

In one embodiment, the telescopic assembly comprises a telescopic arm, a metal belt and a fixing piece, the metal belt is arranged on one side, away from a human body, of the telescopic arm and is connected with the telescopic arm in a clamping mode, the fixing piece is arranged in the metal belt in a penetrating mode and is connected with the telescopic arm, and the outer cover covers the fixing piece.

In one embodiment, the metal belt comprises a belt body and an elastic sheet, the belt body is provided with a through hole penetrating through the belt body along the thickness direction, one end of the elastic sheet is connected with the edge of the through hole, the other end of the elastic sheet is a free end, and the elastic sheet can cover the through hole; when the telescopic assembly extends to the limit position relative to the supporting arm, the elastic sheet is abutted to the supporting arm.

The utility model also provides an earphone, including an ear section of thick bamboo and any one of the above-mentioned telescoping device, an ear section of thick bamboo with the telescoping device connects.

The utility model discloses a technical effect of an embodiment is: in view of the cover being provided on the support arm and covering the fastening element, the cover will cover and conceal the fastening element. After the covering piece is installed, the fastener is hidden in the whole telescopic device, the fastener is prevented from being exposed, a user cannot observe the fastener through naked eyes, and therefore the overall consistency of the telescopic device in appearance is improved.

Drawings

Fig. 1 is a schematic perspective view of a telescopic device according to an embodiment;

FIG. 2 is a perspective view of the telescopic device shown in FIG. 1 from another perspective;

FIG. 3 is a schematic view of a first exemplary exploded view of the telescoping device of FIG. 1;

FIG. 4 is a second exemplary exploded view of the retractor device of FIG. 1;

FIG. 5 is an exploded view of the telescoping device of FIG. 1 with the outer cover and some parts removed;

FIG. 6 is a schematic view of the structure of FIG. 5 from another perspective;

FIG. 7 is a schematic diagram of a first exemplary exploded view of the telescoping device of FIG. 1 with the outer cover, support arm and portions removed;

FIG. 8 is a second exemplary exploded view of the telescoping device of FIG. 1 with the outer cover, support arm and portions removed;

fig. 9 is a schematic plan view of the connecting line.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1, 2 and 3, a telescopic device 10 provided by an embodiment of the present invention is applied to a headset, and the telescopic device 10 includes a support arm 100, an outer cover 200, a fastener 310, a cover 330, a telescopic assembly 400 and a connection line 500.

Referring to fig. 3, 4 and 5, in some embodiments, the supporting arm 100 is formed with an accommodating chamber 110, a communication opening 120, a sinking groove 130 and a locking hole 140. The accommodating cavity 110 is actually an open cavity with an open side, both the accommodating cavity 110 and the fastening hole 140 can be disposed on a side of the support arm 100 away from the human body, the sinking groove 130 is disposed on a side of the support arm 100 close to the human body, and the communication port 120 and the sinking groove 130 are substantially disposed at two opposite ends of the support arm 100 along the length direction thereof. The communication opening 120 is communicated with the accommodating cavity 110, and the communication opening 120 is not provided with a gap in the circumferential direction, so that the communication opening 120 is in a closed-loop structure with a closed circumferential direction.

In some embodiments, the cover 200 is disposed on a side of the support arm 100 facing away from the human body. Specifically, the outer cover 200 covers the opening of the accommodating cavity 110 to close the accommodating cavity 110. The cover 200 includes a snap 210, and the snap 210 is engaged with the snap hole 140 of the support arm 100, so that the cover 200 and the support arm 100 are snap-connected to each other. Of course, the support arm 100 may also have a latch 210, and the latch hole 140 is formed on the cover 200, so as to achieve the latching connection between the cover 200 and the support arm 100. When the cover 200 is connected to the supporting arm 100, the cover 200 covers the receiving cavity 110 of the supporting arm 100.

Referring to fig. 3, the telescopic device 10 further includes a nut 320, and the nut 320 may be fixed on the outer cover 200 by a heat-sealing connection, of course, the nut 320 is fixed on a side of the outer cover 200 close to the supporting arm 100, that is, an inner side of the outer cover 200. The fastening element 310 is arranged at one end of the supporting arm 100 far away from the communication port 120 and connected with the outer cover 200; the fastening member 310 may be a screw or a bolt, and the screw is denoted as a first screw 311, a through hole is opened on the bottom wall of the sinking groove 130, and the first screw 311 penetrates through the through hole and is in threaded connection with the nut 320. In view of the thin thickness of the body portion of the outer cover 200, by coupling the nut 320 on the outer cover 200, the length of the nut 320 being greater than the thickness of the body portion of the outer cover 200, when the first screw 311 is coupled with the nut 320, it is possible to increase the coupling force of the first screw 311, thereby increasing the coupling strength between the outer cover 200 and the support arm 100.

Therefore, the snap connection of the outer cover 200 and the support arm 100 can be realized by the cooperation of the snap 210 and the snap hole 140; meanwhile, the screw connection of the outer cover 200 and the support arm 100 can be realized through the connection of the first screw 311 and the nut 320; the outer cover 200 can be stably and reliably fixed to the support arm 100 by the two-layer connection relationship of the snap connection and the screw connection.

In some embodiments, the outer cover 200 further includes a mounting post 220, the mounting post 220 being provided with a mounting hole 221, and the nut 320 being at least partially received in the mounting hole 221. Through setting up mounting hole 221, mounting hole 221 will play fine limiting displacement to nut 320 to improve the installation accuracy and the installation effectiveness of nut 320.

In some embodiments, the cover 300 is disposed at an end of the support arm 100 distal from the communication port 120. The cover 330 cooperates with the sink 130 such that the cover 330 is at least partially received in the sink 130. In view of the first screw 311 being inserted through the hole in the bottom wall of the countersunk slot 130, the cover 330 will cover and conceal the first screw 311 when the cover 330 is mated with the countersunk slot 130. When the cover 330 is installed, the first screw 311 is hidden in the entire telescopic device 10, and the first screw 311 is prevented from being exposed out of the supporting arm 100, so that a user cannot observe the existence of the first screw 311 by naked eyes, thereby improving the overall consistency of the appearance of the telescopic device 10. In other embodiments, the sinking groove 130 may not be provided, and the covering part 330 may be directly fixed on the supporting arm 100 as long as the covering part 330 can cover the first screw 311.

The telescopic device 10 may further include a rotating shaft 340, two ends of the rotating shaft 340 are disposed on the support arm 100, a middle portion of the rotating shaft 340 spans the sinking groove 130, so that the middle portion of the rotating shaft 340 also passes through the covering element 330, and when the covering element 330 rotates relative to the rotating shaft 340, the covering element 330 rotates relative to the support arm 100 about the rotating shaft 340. Connecting wire 500 wears to establish in this covering 330, and the ear tube of earphone is connected with connecting wire 500, and when covering 330 rotated, connecting wire 500 will follow covering 330 and produce the rotation to make connecting wire 500 drive the ear tube and produce the rotation, make the ear tube laminate with the people's ear in suitable position then, ensure to have reasonable adhesion strength between ear tube and the people's ear, improve the comfort level that the ear tube directly laminated with the people's ear.

Referring to fig. 3, 4 and 6, in some embodiments, the telescopic assembly 400 is inserted into the communication port 120, such that a portion of the telescopic assembly 400 is received in the receiving cavity 110 and another portion of the telescopic assembly 400 is exposed out of the receiving cavity 110. The retraction assembly 400 is slidably coupled to the support arm 100 such that the retraction assembly 400 can slide within the receiving cavity 110. When the telescopic assembly 400 gradually extends out of the support arm 100, the portion of the telescopic assembly 400 located inside the accommodating chamber 110 gradually decreases, and the portion of the telescopic assembly 400 located outside the accommodating chamber 110 gradually increases. In the wearing process of the headset, the part of the telescopic assembly 400, which is located outside the accommodating cavity 110, is in contact with the head of a human body, and the length of the part of the telescopic assembly 400, which is located outside the accommodating cavity 110, is changed by the telescopic assembly 400 relative to the supporting arm 100, so that the headset can meet the wearing requirements of different users, and the wearing comfort of the headset is also improved.

In the telescopic process of the telescopic assembly 400, the telescopic assembly 400 generates an outward extrusion effect on the support arm 100 in the communication port 120, and the communication port 120 is of a circumferential closed-loop structure, so that the support arm 100 can bear a large extrusion expansion force, and the support arm 100 is prevented from being damaged under the action of the large extrusion expansion force. Meanwhile, the circumferential limiting effect of the communication port 120 can improve the motion stability of the telescopic assembly 400 in the telescopic process, and the telescopic assembly 400 is prevented from shaking to a greater extent in the telescopic process.

Referring to fig. 6, 7 and 8, in some embodiments, the telescopic assembly 400 includes a telescopic arm 410, a metal strap 420 and a fixing member, the fixing member may be a bolt or a second screw 430, the metal strap 420 is disposed on a side of the telescopic arm 410 away from the human body, and the metal strap 420 is connected to the telescopic arm 410 in a snap-fit manner. For example, the metal strap 420 is provided with a buckle, the telescopic arm 410 is provided with a clamping hole, and when the buckle is matched with the clamping hole, the clamping connection relationship between the metal strap 420 and the telescopic arm 410 can be realized. The second screw 430 is inserted into the metal strap 420, and the second screw 430 is in threaded connection with the telescopic arm 410, so that the screw connection relationship between the metal strap 420 and the telescopic arm 410 can be realized. The metal strap 420 can be stably and reliably fixed on the telescopic arm 410 by the two-layer connection relationship of the snap connection and the screw connection. The outer cover 200 will cover the second screws 430 such that the second screws 430 are not exposed to the outside of the telescopic device 10 and thus cannot be visually recognized, and the overall consistency of the telescopic device 10 in appearance can be improved.

In some embodiments, the outer wall of the telescopic arm 410 is recessed to form a sliding slot 411, the inner wall of the support arm 100 is protruded to form a sliding rail 150, and the sliding slot 411 is slidably engaged with the sliding rail 150. When the telescopic assembly 400 slides relative to the support arm 100 to perform telescopic movement, the slide rail 150 slides along the slide slot 411. Through setting up spout 411 and slide rail 150, can improve the flexible smooth and easy nature of flexible subassembly 400 relative to support arm 100, avoid flexible subassembly 400 to produce in the motion process and rock or jamming phenomenon etc..

The metal strap 420 may be made of a steel material, and the metal strap 420 includes a strap body 421 and a resilient piece 422, wherein the strap body 421 is provided with a through hole 4211, and the through hole 4211 penetrates through the entire strap body 421 in a thickness direction of the strap body 421. One end of the elastic piece 422 is a fixed end and is fixedly connected with the edge of the through hole 4211, the other end of the elastic piece 422 is a free end, and the elastic piece 422 can cover the through hole 4211. The outer cover 200 covers the through hole 4211 and the elastic piece 422, so that the naked eye cannot penetrate through the through hole 4211 and the elastic piece 422. In the process of gradually extending the retractable assembly 400 into the support arm 100, when the end of the retractable arm 410 abuts against the support arm 100, the retractable assembly 400 stops moving, i.e. the retractable assembly 400 extends to the limit position and cannot continue to extend into the support arm 100. In the process that the retractable assembly 400 gradually extends out of the support arm 100, when the elastic piece 422 abuts against the support arm 100, the retractable assembly 400 stops moving, that is, the retractable assembly 400 extends to the limit position and cannot extend out of the support arm 100. Therefore, the end of the telescopic arm 410 and the elastic piece 422 are abutted against the support arm 100, so that the telescopic length of the telescopic assembly 400 relative to the support arm 100 can be effectively limited, that is, the telescopic assembly 400 is ensured to generate telescopic motion within a limited stroke. By making the telescopic assembly 400 include the metal band 420, the metal band 420 has reasonable mechanical strength and flexibility, so that the clamping force of the telescopic assembly 400 on the head of a human body can be improved, and the wearing stability of the headset is improved.

Referring to fig. 7, 8 and 9, in some embodiments, the connection line 500 includes a flexible section 510, and the flexible section 510 has a certain flexibility, so that the flexible section 510 can freely bend and stretch. During the bending of the telescopic section 510, the telescopic section 510 may be bent into a coiled state. One end of the telescoping section 510 is secured to the support arm 100 such that the telescoping section 510 has a first securing position 521 and the other end of the telescoping section 510 is secured to the telescoping arm 410. For example, a limiting member 610 may be provided, a screw is inserted into the limiting member 610, the screw is referred to as a third screw 620, when the third screw 620 is tightened, an end of the third screw 620 abuts against the connection line 500, so that the end of the telescopic segment 510 is pressed between the third screw 620 and the support arm 100, thereby fixing one end of the telescopic segment 510. The other end of the telescopic section 510 can be fixed to the telescopic arm 410 by clipping or gluing, so that the telescopic section 510 has a second fixing position 522. The third screw 620 and the stopper 610 are also covered by the outer cover 200, preventing the third screw 620 from being exposed outside the telescopic device 10, and improving the overall appearance uniformity of the telescopic device 10.

Of course, the connection line 500 further includes two edge segments, which are denoted as a first edge segment and a second edge segment, the first edge segment is connected with one end of the telescopic segment 510, and the first edge segment is inserted into the covering member 330; the second edge section is connected to the other end of the telescopic section 510, and the second edge section is inserted into the telescopic assembly 400.

When the telescopic assembly 400 is extended into the support arm 100 to reach the limit position, the telescopic section 510 is bent and contracted, i.e., the telescopic section 510 is in a loose, non-tensioned state. When the telescopic assembly 400 is extended to the support arm 100 to reach the limit position, the telescopic section 510 is still bent and contracted, i.e. the telescopic section 510 is still in a loose, non-tensioned state. Therefore, during the process of the telescopic assembly 400 performing telescopic movement relative to the support arm 100, the telescopic section 510 is always in a loose, non-tensioned state, i.e. the telescopic section 510 cannot generate traction force to the telescopic assembly 400 and the support arm 100.

Therefore, in the process that the user pushes the telescopic assembly 400 to perform the extending movement relative to the support arm 100, since the telescopic section 510 cannot generate the traction force on the telescopic assembly 400 and the support arm 100, the retraction resistance generated by the telescopic section 510 on the extension of the telescopic assembly 400 can be eliminated, so that the telescopic assembly 400 can rapidly extend out of the support arm 100, and the convenience of the operation of the whole telescopic device 10 is improved.

The utility model also provides an earphone, this earphone includes earmuff and above-mentioned telescoping device 10, in view of connecting wire 500 wears to establish in covering 330, and connecting wire 500 will stretch out to the telescoping device 10 outside from covering 330, and the earmuff will be connected on the part that connecting wire 500 stretches out from covering 330. Through to making telescopic component 400 produce the motion of stretching into or stretching out relative support arm 100, can make the ear drum laminate with the people's ear of different users is accurate for the earphone can be suitable for different users' the demand of wearing. Meanwhile, the first screw 311, the second screw 430 and the third screw 620 are respectively covered by the cover 330 and the outer cover 200, thereby preventing the three from being exposed outside the telescopic device 10 and improving the overall consistency of the telescopic device 10 in appearance.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A telescopic device, characterized by comprising:

the supporting arm is provided with an accommodating cavity with an opening at one side and a communication port communicated with the accommodating cavity, and the communication port is of a circumferential closed-loop structure;

the telescopic assembly is arranged in the communication port in a penetrating mode and can slide in the accommodating cavity;

the outer cover is arranged at the opening of the accommodating cavity;

the fastener is arranged at one end, far away from the communication port, of the support arm in a penetrating manner and is connected with the outer cover; and

a cover disposed at an end of the support arm distal from the communication port and covering the fastener.

2. The telescopic device according to claim 1, further comprising a nut fixed to an inner wall of the outer cover by heat fusion, wherein the fastener is connected to the nut.

3. The telescopic device according to claim 2, wherein the inner wall of the outer cover is provided with a mounting post, the mounting post is provided with a mounting hole, and the nut is at least partially received in the mounting hole.

4. The telescopic device according to claim 1, wherein a sunken groove is formed in one side of the support arm close to the human body, and the covering member is received in the sunken groove and is rotatably connected with the support arm.

5. The telescopic device according to claim 4, further comprising a connection line, said connection line being threaded through said cover.

6. The telescopic device according to claim 5, wherein the connection line comprises a telescopic section capable of bending and stretching, one end of the telescopic section is fixed on the support arm, the other end of the telescopic section is fixed on the telescopic assembly, and the telescopic section is in a loose and non-tight state during the telescopic assembly is telescopic relative to the support arm.

7. The telescopic device according to claim 1, wherein the outer cover comprises a buckle, the support arm is provided with a buckle hole, and the buckle is matched with the buckle hole.

8. The telescopic device according to claim 1, wherein the telescopic assembly comprises a telescopic arm, a metal belt and a fixing piece, the metal belt is arranged on one side of the telescopic arm far away from the human body and is connected with the telescopic arm in a clamping mode, the fixing piece is arranged in the metal belt in a penetrating mode and is connected with the telescopic arm, and the outer cover covers the fixing piece.

9. The telescopic device according to claim 8, wherein the metal belt comprises a belt body and a spring plate, the belt body is provided with a through hole penetrating through the belt body along the thickness direction, one end of the spring plate is connected with the edge of the through hole, the other end of the spring plate is a free end, and the spring plate can cover the through hole; when the telescopic assembly extends to the limit position relative to the supporting arm, the elastic sheet is abutted to the supporting arm.

10. A headset comprising an ear barrel and a telescopic device according to any of claims 1 to 9, the ear barrel being connected to the telescopic device.

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