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CN-224228332-U - Anechoic chamber

CN224228332UCN 224228332 UCN224228332 UCN 224228332UCN-224228332-U

Abstract

The application relates to the technical field of acoustic detection, and particularly discloses a sound-deadening chamber which comprises a wall body provided with an opening, a door assembly, a ground wedge module and a sound-deadening chamber body, wherein the door assembly comprises a first door plate and a second door plate which are sequentially arranged in a first direction, the first door plate and the second door plate are both positioned in the opening, the second door plate is arranged close to the ground relative to the first door plate, the ground wedge module is movably arranged on the ground of the sound-deadening chamber body, the second door plate comprises a first sub-part, a second sub-part and a third sub-part, the openings of the first sub-part and the third sub-part are positioned on two sides of the opening in a second direction and are respectively hinged with the wall body, and the second sub-part is movably arranged between the first sub-part and the third sub-part so as to open and close part of the opening. According to the application, the ground wedge module is arranged to be movable, the design level of the ground wedge module is realized between the anechoic room and the outdoor ground, so that the ground wedge module can be conveniently moved, meanwhile, the door assembly is designed, the cost is reduced, the operation convenience is greatly improved, and the working efficiency is improved.

Inventors

  • XIA MENG
  • LIANG PING
  • LIU XIAOLIANG
  • LIU PU

Assignees

  • 中国船舶集团有限公司第七一一研究所
  • 上海齐耀重工有限公司

Dates

Publication Date
20260512
Application Date
20250527

Claims (10)

  1. 1. A muffling chamber, wherein the muffling chamber has first and second directions that intersect, the muffling chamber comprising: a wall body provided with an opening; the door assembly comprises a first door plate and a second door plate which are sequentially arranged in a first direction, wherein the first door plate and the second door plate are both positioned in the opening, the second door plate is arranged close to the ground relative to the first door plate, and The ground wedge module is movably arranged on the ground of the anechoic chamber; The first door plate is hinged to the wall body to open and close the opening, the second door plate comprises a first sub-portion, a second sub-portion and a third sub-portion, the first sub-portion and the third sub-portion are located on two sides of the opening in the second direction and are respectively hinged to the wall body, and the second sub-portion is movably arranged between the first sub-portion and the third sub-portion to open and close the opening.
  2. 2. The anechoic chamber of claim 1, wherein the ground wedge module comprises a base plate, a first wedge, and a moving wheel, the moving wheel being disposed on a side of the base plate that is closer to the ground, the first wedge being disposed on a side of the base plate that is opposite the ground.
  3. 3. The anechoic chamber of claim 2, wherein the ground wedge module further comprises a peripheral frame disposed on a side of the base plate facing away from the ground, the peripheral frame surrounding an outer peripheral side of the first wedge.
  4. 4. The anechoic chamber of claim 1, wherein the second sub-portion comprises a bottom plate, a mounting frame, a second wedge and a roller, wherein the mounting frame is disposed on an outer surface of the bottom plate, the second wedge is disposed in the mounting frame, and the roller is disposed on a side of the bottom plate adjacent to the ground.
  5. 5. The anechoic chamber of claim 4, wherein the mounting frame has a mounting opening facing into the anechoic chamber, the tip of the second wedge being disposed toward the mounting opening.
  6. 6. The anechoic chamber of claim 5, wherein the second sub-portion further comprises an auxiliary handle disposed at an end of the mounting frame remote from the second wedge.
  7. 7. The muffling chamber of claim 1, further comprising an auxiliary wheel disposed on a side of the first sub-portion adjacent the ground and/or a side of the third sub-portion adjacent the ground, the auxiliary wheel being in contact with the ground.
  8. 8. The muffling chamber of claim 1, further comprising a limiting member disposed on a side of the first sub-portion adjacent the second sub-portion and/or on a side of the third sub-portion adjacent the second sub-portion; The limiting piece comprises a connecting portion and a limiting portion arranged on the connecting portion, the connecting portion is connected to the first sub-portion, the limiting portion is arranged on one side, away from the first sub-portion, of the connecting portion, in the moving direction of the second sub-portion, and the limiting portion is at least partially opposite to the second sub-portion and used for stopping the second sub-portion.
  9. 9. The muffling chamber of claim 1, further comprising a rotation shaft disposed in the muffling chamber, wherein in the second direction, the rotation shafts of the first sub-portion and the third sub-portion are located on both sides of the opening that are disposed opposite to each other in the second direction, and wherein one side of the first sub-portion and/or the third sub-portion that is close to the edge of the opening is provided with a relief angle.
  10. 10. The anechoic chamber of claim 1, wherein the first door panel comprises a first sub-door panel portion and a second sub-door panel portion, the first sub-door panel portion and the second sub-door panel portion are respectively disposed on opposite sides of the opening in the second direction, and the first sub-door panel portion and the second sub-door panel portion are both hinged with the wall.

Description

Anechoic chamber Technical Field The application relates to the technical field of acoustic detection, in particular to a sound elimination chamber. Background The anechoic chamber is an important component of a test system, and provides an acoustic environment meeting test standards for acoustic testing, analysis, diagnosis, improvement test and the like of various acoustic sources. The silencing chamber is divided into a full silencing chamber and a half silencing chamber, silencing wedges are arranged on six surfaces of the chamber in the full silencing chamber, and the half silencing chamber is not provided with wedges on the indoor ground. In the actual use process, in order to meet the use requirements of small-sized to large-sized equipment, a full-anechoic chamber and a half-anechoic chamber are generally required to be independently built, and the economic cost is high. Disclosure of utility model Embodiments of the present application provide a anechoic chamber to balance test requirements for small and large devices at a lower cost. In order to solve the technical problems, the embodiment of the application discloses the following technical scheme: in one aspect, there is provided a muffling chamber having a first direction and a second direction, the muffling chamber comprising: a wall body provided with an opening; The door assembly comprises a first door plate and a second door plate which are sequentially arranged in a first direction, wherein the first door plate and the second door plate are positioned in the opening, the second door plate is arranged close to the ground relative to the first door plate, and The ground wedge module is movably arranged on the ground of the anechoic chamber; The first door plate is hinged to the wall body to open and close the partial opening, the second door plate comprises a first sub-part, a second sub-part and a third sub-part, the first sub-part and the third sub-part are positioned on two sides of the opening in the second direction and are respectively hinged to the wall body, and the second sub-part is movably arranged between the first sub-part and the third sub-part to open and close the partial opening. In addition to or in lieu of one or more of the features disclosed above, the ground wedge module includes a base plate, a first wedge, and a moving wheel disposed on a side of the base plate proximate the ground, the first wedge disposed on a side of the base plate facing away from the ground. In addition to or in lieu of one or more of the features disclosed above, the ground wedge module further includes a peripheral frame disposed on a side of the base plate facing away from the ground, the peripheral frame surrounding an outer peripheral side of the wedge. In addition to or in lieu of one or more of the features disclosed above, the second sub-portion includes a base plate, a mounting frame disposed on an outer surface of the base plate, a second wedge disposed within the mounting frame, and a roller disposed on a side of the base plate proximate the ground. In addition to or in lieu of one or more of the features disclosed above, the mounting frame has a mounting opening toward the sound damping chamber, the tip of the second wedge being disposed toward the mounting opening. In addition to or in lieu of one or more of the features disclosed above, the second sub-portion further includes an auxiliary handle disposed at an end of the mounting frame remote from the second wedge. In addition to or in lieu of one or more of the features disclosed above, an auxiliary wheel is included that is disposed on a ground-proximate side of the first sub-portion and/or on a ground-proximate side of the third sub-portion, the auxiliary wheel being in contact with the ground. In addition to or in lieu of one or more of the features disclosed above, a stop is included on a side of the first sub-portion adjacent the second sub-portion and/or on a side of the third sub-portion adjacent the second sub-portion; The limiting piece comprises a connecting part and a limiting part arranged on the connecting part, the connecting part is connected to the first sub-part, the limiting part is arranged on one side, far away from the first sub-part, of the connecting part, and the limiting part is at least partially opposite to the second sub-part in the moving direction of the second sub-part so as to stop the second sub-part. In addition to or in lieu of one or more of the features disclosed above, the muffler further includes a rotating shaft disposed within the muffler chamber, the rotating shafts of the first and third sub-portions being disposed on opposite sides of the opening in the second direction, the side of the first sub-portion adjacent to the edge of the opening being provided with a relief angle. In addition to or in lieu of one or more of the features disclosed above, the first door panel includes a first sub-door panel portion and a second sub-door panel por