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CN-224218498-U - Portable Bluetooth headset of scalable head roof beam

CN224218498UCN 224218498 UCN224218498 UCN 224218498UCN-224218498-U

Abstract

The utility model discloses a portable Bluetooth headset with a telescopic head beam, which comprises a left speaker part, a right speaker part, an upper head beam part and a lower head beam part, wherein two ends of the upper head beam part are respectively connected with the left speaker part and the right speaker part, two ends of the lower head beam part are respectively connected with the left speaker part and the right speaker part, the upper head beam part is positioned above the lower head beam part, the lower head beam part comprises an extension flexible part and a protection cushion layer, the extension flexible part is in a strip shape, two ends of the extension flexible part are respectively connected with the left speaker part and the right speaker part, the protection cushion layer is wrapped on the periphery of the extension flexible part, and the extension flexible part can be extended and shortened according to the tensile force. The headset can uniformly distribute the pressure from top to bottom on the upper half part of the whole head without concentrating the pressure on the top of the head, and in addition, when the head of a user is large, the discomfort caused by overlarge clamping force is relieved.

Inventors

  • LIU XINLING
  • ZENG XIANWU
  • HUANG LONGJIE

Assignees

  • 广州翊森电子科技有限公司

Dates

Publication Date
20260508
Application Date
20250605

Claims (8)

  1. 1. The portable Bluetooth headset with the telescopic head beams is characterized by comprising a left speaker part (1), a right speaker part (2), an upper head beam part (3) and a lower head beam part (4), wherein two ends of the upper head beam part (3) are respectively connected with the left speaker part (1) and the right speaker part (2), two ends of the lower head beam part (4) are respectively connected with the left speaker part (1) and the right speaker part (2), the upper head beam part (3) is positioned above the lower head beam part (4), the lower head beam part (4) comprises an extension flexible part (41) and a protection cushion layer (42), the extension flexible part (41) is in a strip shape, two ends of the extension flexible part are respectively connected with the left speaker part (1) and the right speaker part (2), the protection cushion layer (42) is wrapped on the periphery of the extension flexible part (41), and the extension flexible part (41) can be stretched according to the stretching force.
  2. 2. The portable bluetooth headset of claim 1, wherein the protective pad (42) comprises an upper pad (421) disposed above the extension flexible member (41), and further comprises a lower pad (422) disposed below the extension flexible member (41), wherein one side of the upper pad (421) is connected with the lower pad (422) in a hinge shape, and the other side of the upper pad (421) is detachably connected with the other side of the lower pad (422) through a hook and loop fastener (43) which is matched with each other.
  3. 3. The portable bluetooth headset of a retractable head beam according to claim 1, wherein the lower head beam part (4) further comprises a left connecting piece (44) and a right connecting piece (45) which are of rigid structures, two ends of the extension flexible piece are fixedly/rotatably connected with the left connecting piece (44) and the right connecting piece (45) respectively, the protection cushion layer (42) is matched with the left connecting piece (44) and the right connecting piece (45) to enclose the extension flexible piece (41) inside, the left connecting piece (44) is connected with the left speaker part (1), and the right connecting piece (45) is connected with the right speaker part (2).
  4. 4. The portable Bluetooth headset of the retractable head beam according to claim 1, wherein the upper head beam part (3) comprises a middle rod piece (31) arranged in the middle, a left loop bar (32) movably sleeved on the left end of the middle rod piece (31), a right loop bar (33) movably sleeved on the right end of the middle rod piece (31), the left loop bar (32) is connected with the left speaker part (1), and the right loop bar (33) is connected with the right speaker part (2).
  5. 5. The portable bluetooth headset of claim 4, wherein a flexible resistance ring (34) is provided between the middle lever (31) and the left loop bar (32) and between the middle lever (31) and the right loop bar (33), and wherein the thickness of the flexible resistance ring (34) is not smaller than the gap between the middle lever (31) and the left loop bar (32) nor the gap between the middle lever (31) and the right loop bar (33).
  6. 6. The portable Bluetooth headset of claim 4, wherein a lever limit protrusion is arranged at the end part of the middle lever (31) corresponding to the left lever (32), the lever limit protrusion faces and is arranged against the left lever (32), a left limit protrusion is arranged at the end part of the left lever (32), the left limit protrusion faces and is arranged against the middle lever (31), and when the left lever (32) moves to a position which is about to be separated from the middle lever (31), the lever limit protrusion is blocked on a movement path of the left limit protrusion to prevent the left lever (32) from being separated from the middle lever (31); the end part of the middle rod piece (31) corresponding to the right loop bar (33) is provided with a rod piece limiting protrusion, the rod piece limiting protrusion faces and abuts against the right loop bar (33), the end part of the right loop bar (33) is provided with a right limiting protrusion, the right limiting protrusion faces and abuts against the middle rod piece (31), and when the right loop bar (33) moves to a position which is about to be separated from the middle rod piece (31), the rod piece limiting protrusion is blocked on a movement path of the right limiting protrusion, so that the right loop bar (33) is prevented from being separated from the middle rod piece (31).
  7. 7. The portable bluetooth headset of a retractable head rest according to claim 4, wherein a sliding groove (37) is provided on the left loop bar (32) and the right loop bar (33), and both ends of the lower head rest part (4) are movably provided on the sliding groove.
  8. 8. The portable bluetooth headset of a retractable head beam according to claim 1, further comprising a mandibular strap (5), both ends of the mandibular strap (5) being connected to the left speaker (1) and the right speaker (2), respectively.

Description

Portable Bluetooth headset of scalable head roof beam Technical Field The utility model relates to sound equipment, in particular to a portable Bluetooth headset with a telescopic head beam. Background Headphones are a commonly used type of headphones, which consist of two parts, specifically a signal transmitter and headphones with signal receiving and amplifying means (usually a moving-coil), the transmitter being connected to a signal source, and a front stage or headphone amplifier being connected in front of the transmitter to improve sound quality and adjust tone. In the prior art, the head beam of the headset is made of hard strips, and the clamping force from left to right to the side face of the head is manufactured by means of bending degree and elastic deformation of the head beam. Because of the difference between the head size and the outline shape of the users, if the clamping force of the head beam is comfortable for the users with smaller head size, the head beam can be clamped too tightly for the users with larger head size, so that the head beam is excessively large in extrusion force of the head and uncomfortable to wear, and if the clamping force of the head beam is comfortable for the users with larger head size, the head beam can be excessively loose for the users with smaller head size, so that the earphone is wholly pressed towards the top of the head, and the pressure is concentrated on the upper part of the top of the head, so that discomfort is caused. That is, the headset head beam structure in the prior art also has the problem that the adjustment between the lateral clamping force and the top downward pressure cannot be carried out according to the difference of head sizes of different users, and the universality is not enough. Accordingly, there is a need for a headset that adjusts the clamping force and downforce distribution according to different user head sizes. Disclosure of utility model In order to overcome the above-mentioned drawbacks of the prior art, it is an object of the present utility model to provide a headset that adjusts the clamping force and downforce distribution according to different user head sizes. The technical scheme adopted for solving the technical problems is as follows: a portable Bluetooth headset with a telescopic head beam comprises a left speaker part, a right speaker part, an upper head beam part and a lower head beam part, wherein two ends of the upper head beam part are respectively connected with the left speaker part and the right speaker part, two ends of the lower head beam part are respectively connected with the left speaker part and the right speaker part, the upper head beam part is positioned above the lower head beam part, the lower head beam part comprises an extension flexible part and a protection cushion layer, the extension flexible part is in a strip shape, two ends of the extension flexible part are respectively connected with the left speaker part and the right speaker part, the protection cushion layer is wrapped on the periphery of the extension flexible part, and the extension flexible part can be extended and shortened according to the magnitude of tensile force. Specifically, the extending flexible piece can use rubber bands, elastic bands and elastic ropes, and can also be made of flexible materials with two ends capable of correspondingly extending after being pulled. Through adopting the technical scheme, the head beam part of the headset is formed by combining the upper head beam part and the lower head beam part, wherein the lower head beam part is positioned below and is in direct contact with the head of a user, the two ends of the lower head beam part are respectively connected with the left loudspeaker part and the right loudspeaker part, and the middle part of the lower head beam part is provided with the extension flexible part which can be lengthened and shortened according to the magnitude of tensile force, so that the lower head beam part is in an inverted U shape integrally after the headset is worn by a user, the extension flexible part is attached to the upper half part of the head of the user, the pressure of the headset from top to bottom can be uniformly distributed on the upper half part of the head of the whole without concentrating the pressure on the top of the head, and in addition, when the head of the user is larger, the horizontal distance between the left loudspeaker part and the right loudspeaker part is increased, the clamping force of the two sides to the head is correspondingly reduced, and discomfort caused by overlarge clamping force is relieved. The protection cushion layer comprises an upper cushion layer arranged above the extension flexible piece and a lower cushion layer arranged below the extension flexible piece, wherein one side of the upper cushion layer is connected with the lower cushion layer in a folding manner, and the other side of the upper cushion layer is detachabl