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CN-224233846-U - Auxiliary clamp and supporting device for acoustic test

CN224233846UCN 224233846 UCN224233846 UCN 224233846UCN-224233846-U

Abstract

The utility model discloses an auxiliary clamp and a supporting device for acoustic testing, wherein the auxiliary clamp comprises a plate body, at least two cylinders and clamping seats which are arranged in one-to-one correspondence with the cylinders, the middle part of the plate body is provided with a mounting hole which is used for fixedly connecting with a support for supporting the auxiliary clamp, the cylinders are perpendicular to the plate body and are connected with one surface of the plate body, which is opposite to the support, the clamping seats are connected with one end of the cylinder, which is far away from the plate body, and the clamping seats are provided with clamping parts for clamping and fixing microphones. The auxiliary clamp can better meet the requirement of simultaneously testing a plurality of acoustic measurement devices, is beneficial to improving the efficiency of test preparation and ending work and reducing the risk of interference of sound field environments.

Inventors

  • Guo Rijie
  • Ye Hualian
  • WANG BIN
  • ZHENG HAOHAO

Assignees

  • 中国环境监测总站

Dates

Publication Date
20260512
Application Date
20250611

Claims (10)

  1. 1. An auxiliary fixture for acoustic testing, comprising: The middle part of the plate body is provided with a mounting hole for fixedly connecting with a support for supporting the auxiliary clamp; The columns are perpendicular to the plate body and are connected with one surface of the plate body, which is opposite to the support; The clamping seats are arranged in one-to-one correspondence with the columns, the clamping seats are connected with one ends, far away from the plate body, of the columns, and the clamping seats are provided with clamping parts for clamping and fixing microphones.
  2. 2. The auxiliary clamp according to claim 1, wherein the cylinder is rotatably connected to the plate body, and a rotation axis of the cylinder with respect to the plate body is a central axis of the cylinder.
  3. 3. The auxiliary clamp according to claim 2, wherein the clamping seat is rotatably connected with the cylinder, and a rotation axis of the clamping seat relative to the cylinder is vertically intersected with a central axis of the cylinder; The auxiliary clamp comprises a locking piece used for locking and fixing the clamping seat on the cylinder.
  4. 4. The auxiliary clamp according to claim 3, wherein a groove is formed in an upper end of the column body, the clamping seat is provided with a connecting portion located in the groove, a first hinge hole is formed in the connecting portion, the clamping seat is provided with a second hinge hole aligned with the first hinge hole, and the locking piece is a bolt penetrating through the first hinge hole and the second hinge hole.
  5. 5. The auxiliary clamp according to claim 4, wherein the end face of the locking member is provided with a straight slot for being matched with a tool, and the straight slot penetrates through the locking member along the radial direction of the locking member.
  6. 6. The auxiliary clamp according to claim 5, wherein the number of the straight grooves is more than two, and the straight grooves are distributed at equal intervals along the circumferential direction of the locking piece.
  7. 7. The auxiliary fixture according to any one of claims 1 to 6, wherein the number of the columns is not less than three, and the columns are arranged in a straight line at equal intervals.
  8. 8. The auxiliary clamp according to claim 7, wherein the number of the columns is even and symmetrically distributed on both sides of the mounting hole.
  9. 9. The auxiliary jig according to claim 8, wherein the number of the mounting holes is not less than two, and the arrangement direction of the mounting holes is perpendicular to the arrangement direction of the columns.
  10. 10. A support device for acoustic testing, comprising: the lower end of the upright post is provided with a supporting base, and the upper end of the upright post is provided with a carrying seat; The auxiliary clamp is an auxiliary clamp as claimed in any one of claims 1-9, and the plate body is fixedly connected with the carrier.

Description

Auxiliary clamp and supporting device for acoustic test Technical Field The utility model relates to the technical field of acoustic testing, in particular to an auxiliary clamp and a supporting device for acoustic testing. Background Acoustic measurement devices (e.g., noise instruments, etc.) need to be tested to evaluate their function and characteristics, and a support device needs to be placed in advance into a sound field space (e.g., anechoic chamber) during testing, and the device under test is held in a desired position by the support device. At present, a supporting device used for acoustic testing can only be placed on a single acoustic measuring device, when a plurality of acoustic measuring devices need to be tested simultaneously, the supporting device has to be added in a sound field space, on the one hand, the testing preparation and ending working process is complicated, the efficiency is low, on the other hand, the risk that sound waves are reflected easily due to the fact that a plurality of large-size objects (namely the supporting device) enter a sound field exists, and then the sound field environment is disturbed, and the accuracy of a testing result is affected. Disclosure of utility model Accordingly, one of the purposes of the present utility model is to provide an auxiliary fixture for acoustic testing, so as to better meet the requirement of simultaneously testing a plurality of acoustic measurement devices, improve the efficiency of test preparation and ending work, and reduce the risk of interference of sound field environment. Another object of the present utility model is to provide a supporting device comprising the auxiliary clamp described above. In order to achieve the above object, the present utility model provides the following technical solutions: An auxiliary fixture for acoustic testing, comprising: The middle part of the plate body is provided with a mounting hole for fixedly connecting with a support for supporting the auxiliary clamp; The columns are perpendicular to the plate body and are connected with one surface of the plate body, which is opposite to the support; The clamping seats are arranged in one-to-one correspondence with the columns, the clamping seats are connected with one ends, far away from the plate body, of the columns, and the clamping seats are provided with clamping parts for clamping and fixing microphones. Optionally, in the auxiliary fixture, the cylinder is rotationally connected with the plate body, and a rotation axis of the cylinder relative to the plate body is a central axis of the cylinder. Optionally, in the auxiliary fixture, the clamping seat is rotationally connected with the cylinder, and a rotation axis of the clamping seat rotating relative to the cylinder is perpendicularly intersected with a central axis of the cylinder; The auxiliary clamp comprises a locking piece used for locking and fixing the clamping seat on the cylinder. Optionally, in the above auxiliary fixture, a groove is provided at an upper end of the column, the clamping seat is provided with a connecting portion located in the groove, a first hinge hole is provided at the connecting portion, the clamping seat is provided with a second hinge hole aligned to the first hinge hole, and the locking member is provided as a bolt penetrating through the first hinge hole and the second hinge hole. Optionally, in the auxiliary fixture, a straight slot for matching with a tool is formed in an end face of the locking piece, and the straight slot penetrates through the locking piece along a radial direction of the locking piece. Optionally, in the auxiliary fixture, the number of the straight grooves is more than two, and the straight grooves are equally spaced and angularly distributed along the circumferential direction of the locking member. Optionally, in the auxiliary fixture, the number of the columns is not less than three, and the columns are aligned at equal intervals. Optionally, in the auxiliary fixture, the number of the columns is even, and the columns are symmetrically distributed on two sides of the mounting hole. Optionally, in the above auxiliary fixture, the number of the mounting holes is not less than two, and an arrangement direction of the mounting holes is perpendicular to an arrangement direction of the columns. A support device for acoustic testing, comprising: the lower end of the upright post is provided with a supporting base, and the upper end of the upright post is provided with a carrying seat; the auxiliary clamp is any one of the auxiliary clamps disclosed above, and the plate body is fixedly connected with the carrier. The auxiliary clamp for acoustic testing has the following beneficial effects: The auxiliary clamp comprises a plate body and more than two columns, wherein the plate body is used for being connected with a support for supporting the auxiliary clamp, the columns are connected to one surface of the plate body, which is oppos