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CN-122002173-A - Middle-side type double-channel acoustic acquisition front-end device

CN122002173ACN 122002173 ACN122002173 ACN 122002173ACN-122002173-A

Abstract

The invention belongs to the technical field of middle-side type double-channel acoustic acquisition front-end devices, and discloses a middle-side type double-channel acoustic acquisition front-end device. The middle-side type double-channel acoustic acquisition front end device comprises a potentiometer assembly, an adjusting assembly, an acoustic assembly and a control board, wherein the potentiometer assembly comprises a potentiometer and a support, the potentiometer is fixed on the support, an eccentric part is eccentrically arranged on a rotating shaft of the potentiometer, the adjusting assembly comprises a first adjusting piece which is sleeved outside the support and can rotate relative to the axis of the support, when the first adjusting piece is rotated, the first adjusting piece can be abutted to the eccentric part and drive the rotating shaft to rotate in the same direction, the acoustic assembly is arranged on the support, the acoustic assembly is in communication connection with the potentiometer, and the control board is in communication connection with the potentiometer. The invention can realize the switching of the radio reception mode, remarkably improves the operation convenience and efficiency, saves time and labor, has smooth user experience, is convenient to determine the running state of the potentiometer, and has relatively low requirement on the installation precision.

Inventors

  • DENG GANG
  • ZHAO HONGLIANG
  • Yu Zuen

Assignees

  • 深圳市长丰影像器材有限公司

Dates

Publication Date
20260508
Application Date
20260203

Claims (10)

  1. 1. The utility model provides a well limit standard binary channels acoustic acquisition front end device which characterized in that includes: The potentiometer assembly (1), the potentiometer assembly (1) comprises a potentiometer (11) and a bracket (12), the potentiometer (11) is fixed on the bracket (12), and an eccentric part (131) is eccentrically arranged on a rotating shaft of the potentiometer (11); the adjusting assembly (2), the adjusting assembly (2) comprises a first adjusting piece (21), the first adjusting piece (21) is sleeved outside the bracket (12) and can rotate along the axis of the bracket (12), and when the first adjusting piece (21) is rotated, the first adjusting piece (21) can be abutted with the eccentric part (131) and drive the rotating shaft to rotate in the same direction; The acoustic assembly (3) is arranged on the bracket (12), and the acoustic assembly (3) is in communication connection with the potentiometer (11); and the control board is in communication connection with the potentiometer (11).
  2. 2. The medium-edge type dual-channel acoustic acquisition front-end device according to claim 1, wherein the first adjusting member (21) is provided with an adjusting cavity (211), the eccentric portion (131) is located in the adjusting cavity (211), and when the first adjusting member (21) is rotated, a cavity wall of the adjusting cavity (211) can be abutted with the eccentric portion (131).
  3. 3. The medium-edge type dual-channel acoustic acquisition front-end device according to claim 2, wherein the first adjusting member (21) comprises a sleeving part (212), an abutting part (213) and at least one connecting part (214), the sleeving part (212) is sleeved outside the bracket (12), the abutting part (213) is provided with the adjusting cavity (211), two ends of the connecting part (214) are respectively connected with the sleeving part (212) and the abutting part (213), at least two limiting members (14) are arranged on the bracket (12), and the connecting part (214) can be selectively contacted with two adjacent limiting members (14).
  4. 4. A mid-edge type dual-channel acoustic acquisition front-end device according to claim 3, wherein at least one protrusion set (122) is provided on an outer wall of the bracket (12), each protrusion set (122) comprises two protrusions (1221), the two protrusions (1221) are disposed opposite to each other, at least two groove sets (215) are provided on an inner wall of the first adjusting member (21), each groove set (215) comprises two grooves (2151), the two grooves (2151) are disposed opposite to each other, when the first adjusting member (21) is rotated, the protrusion set (122) can selectively correspond to one of the groove sets (215), and the protrusions (1221) can slide into the corresponding groove (2151), when the connecting portion (214) contacts one of the limiting members (14), the protrusion set (122) corresponds to one of the groove sets (215), and when the connecting portion (214) contacts the other limiting member (14), the protrusion set (122) corresponds to the other groove set (122).
  5. 5. The mid-edge type dual-channel acoustic acquisition front-end device according to claim 4, wherein at least three groove groups (215) are provided, and the protrusion group (122) corresponds to another groove group (215) when the connecting portion (214) is located at an intermediate position of two adjacent limiting members (14) along the circumferential direction of the bracket (12).
  6. 6. The medium-edge type dual-channel acoustic acquisition front-end device according to claim 5, wherein four groove groups (215) are provided, eight grooves (2151) in the four groove groups (215) are distributed at equal intervals along the circumferential direction of the bracket (12), and the connecting portion (214) is arranged at the central position of two adjacent grooves (2151) along the circumferential direction of the bracket (12).
  7. 7. A mid-edge type dual-channel acoustic acquisition front-end device according to claim 3, wherein the bracket (12) is provided with at least two first penetrating holes (123), at least two first penetrating holes (123) are arranged in one-to-one correspondence with at least two limiting members (14), the acoustic assembly (3) is provided with at least two protruding portions (31), at least two protruding portions (31) are arranged in one-to-one correspondence with at least two limiting members (14), the protruding portions (31) are provided with first connecting holes (311), the limiting members (14) penetrate through the first penetrating holes (123) and are detachably connected with the first connecting holes (311), and the connecting portions (214) can be selectively contacted with two adjacent protruding portions (31).
  8. 8. The medium-edge type dual-channel acoustic acquisition front-end device according to claim 1, wherein the adjusting assembly (2) further comprises a second adjusting piece (22), the second adjusting piece (22) is arranged on the first adjusting piece (21), and the outer wall of the second adjusting piece (22) is provided with a concave-convex structure (221), and/or; The potentiometer is characterized in that a connecting piece (13) is detachably connected to the rotating shaft of the potentiometer (11), the connecting piece (13) is coaxially arranged with the rotating shaft, the connecting piece (13) is provided with an eccentric portion (131), the adjusting assembly (2) further comprises a propping piece (23), a second penetrating hole (216) is formed in the first adjusting piece (21), the second penetrating hole (216) is sleeved outside the connecting piece (13), and the propping piece (23) is detachably connected with the connecting piece (13) so as to prop the first adjusting piece (21) to the shaft end face of the connecting piece (13).
  9. 9. The mid-edge mode dual channel acoustic acquisition front end device of any one of claims 1-8, further comprising a first housing (4), wherein the acoustic assembly (3) is disposed within the first housing (4).
  10. 10. The mid-edge type dual-channel acoustic acquisition front-end device according to any one of claims 1 to 8, further comprising a second housing (5), a first fixing member (6) and a third housing (7), wherein a part of the control board is located in the second housing (5), a first end of the second housing (5) is fixed to the bracket (12), the first fixing member (6) is detachably connected with a second end of the second housing (5), the third housing (7) is sleeved outside the second housing (5), a first end of the third housing (7) is axially abutted with the adjusting assembly (2), and a second end of the third housing (7) is axially abutted with the first fixing member (6).

Description

Middle-side type double-channel acoustic acquisition front-end device Technical Field The invention relates to the technical field of acoustic acquisition front-end devices, in particular to a middle-side type double-channel acoustic acquisition front-end device. Background A microphone is a device for converting sound into an electrical signal, and is a necessary tool for applications such as sound recording and speech recognition. The sound pickup mode of the microphone determines the sensitivity and range of sound captured from different directions, and directly influences the recording effect and the suppression capability of environmental noise. The existing gun-type microphone is generally provided with heart-shaped, omni-directional, 8-shaped and other sound receiving modes, the existing gun-type microphone is generally switched with the sound receiving mode of the microphone through a toggle switch, an operator pushes the toggle switch to translate to realize switching when switching the sound receiving mode, and the toggle switch is arranged on the side face or the bottom face of the microphone, so that the operator is inconvenient to operate, and the experience feeling during switching is poor. Therefore, a middle-edge type dual-channel acoustic acquisition front-end device is needed to solve the above technical problems. Disclosure of Invention The invention aims to provide a middle-side type double-channel acoustic acquisition front-end device, which can realize the switching of a radio mode, remarkably improves the operation convenience and efficiency, saves time and labor, has smooth user experience, is convenient to determine the running state of a potentiometer, and has relatively low requirement on installation precision. To achieve the purpose, the invention adopts the following technical scheme: A mid-edge system dual-channel acoustic acquisition front-end device, comprising: the potentiometer assembly comprises a potentiometer and a bracket, the potentiometer is fixed on the bracket, and an eccentric part is eccentrically arranged on a rotating shaft of the potentiometer; The adjusting assembly comprises a first adjusting piece, the first adjusting piece is sleeved outside the bracket and can rotate along the axis of the bracket, and when the first adjusting piece is rotated, the first adjusting piece can be abutted with the eccentric part and drive the rotating shaft to rotate in the same direction; the acoustic assembly is arranged on the bracket and is in communication connection with the potentiometer; And the control board is in communication connection with the potentiometer. In some possible embodiments, the first adjusting member is provided with an adjusting cavity, the eccentric portion is located in the adjusting cavity, and when the first adjusting member is rotated, a cavity wall of the adjusting cavity can abut against the eccentric portion. In some possible embodiments, the first adjusting member includes a sleeve portion, an abutting portion and at least one connecting portion, the sleeve portion is sleeved outside the bracket, the abutting portion is provided with the adjusting cavity, two ends of the connecting portion are respectively connected with the sleeve portion and the abutting portion, at least two limiting members are arranged on the bracket, and the connecting portion can selectively contact with two adjacent limiting members. In some possible embodiments, at least one protrusion set is disposed on an outer wall of the bracket, each protrusion set includes two protrusions, the two protrusions are disposed opposite to each other, at least two groove sets are disposed on an inner wall of the first adjusting member, each groove set includes two grooves, the two grooves are disposed opposite to each other, when the first adjusting member is rotated, the protrusion set can selectively correspond to one of the groove sets, and the protrusions can relatively slide into the corresponding groove, when the connecting portion contacts one of the limiting members, the protrusion set corresponds to one of the groove sets, and when the connecting portion contacts the other limiting member, the protrusion set corresponds to the other groove set. In some possible embodiments, the groove group is provided with at least three, and the protrusion group corresponds to another groove group when the connecting portion is located at an intermediate position of two adjacent limit pieces along the circumferential direction of the bracket. In some possible embodiments, the groove group is provided with four grooves, eight grooves in the four groove groups are distributed at equal intervals along the circumferential direction of the bracket, and the connecting part is arranged at the central position of two adjacent grooves along the circumferential direction of the bracket. In some possible embodiments, the support is provided with at least two first penetrating holes, at least two fi