CN219608213U - Baffle for testing directivity of anechoic chamber - Google Patents
Baffle for testing directivity of anechoic chamber Download PDFInfo
- Publication number
- CN219608213U CN219608213U CN202320745942.7U CN202320745942U CN219608213U CN 219608213 U CN219608213 U CN 219608213U CN 202320745942 U CN202320745942 U CN 202320745942U CN 219608213 U CN219608213 U CN 219608213U
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- China
- Prior art keywords
- guide rail
- connecting seat
- annular guide
- test baffle
- directivity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model relates to the technical field of acoustic testing, in particular to a sound-deadening chamber directivity test baffle which comprises a test baffle and an angle adjusting component; the angle adjusting component comprises an annular guide rail, an installation table, a plurality of sliding seats and a supporting bottom plate formed by encircling a plurality of block-shaped body equiangular degrees, wherein the annular guide rail is fixedly installed above the supporting bottom plate, the sliding seats are respectively connected with the annular guide rail in a sliding manner, the sliding seats are arranged above the annular guide rail at intervals, the installation table is fixedly installed above the sliding seats, the test baffle is movably arranged above the installation table, the sliding seats can slide on the annular guide rail, the installation table can rotate relative to the annular guide rail, and when the angle of the test baffle needs to be adjusted, the installation table can be directly rotated, and then the position of the test baffle is adjusted so as to conveniently carry out directivity test.
Description
Technical Field
The utility model relates to the technical field of acoustic testing, in particular to a baffle for testing directivity of a anechoic chamber.
Background
The sounding frequency of the sounding device is generally tested in the silencing chamber, the inner wall of a wallboard on one side of the silencing chamber is used as a reflecting surface, the other side walls are subjected to silencing treatment, a testing device is arranged in the silencing chamber, and the sounding device is placed on the reflecting surface and the sound source of the sounding device is right opposite to the testing device for testing.
In the process of testing the sounding device, the sounding device needs to be used for testing a baffle plate of the anechoic chamber, and the baffle plate is generally fixedly arranged at a certain position in the anechoic chamber, so that the angle is inconvenient to adjust, and the directivity test is inconvenient to carry out.
Disclosure of Invention
The utility model aims to provide a sound-deadening chamber directivity test baffle which can be used for conveniently adjusting the angle of the test baffle so as to conveniently carry out directivity test.
In order to achieve the above object, the present utility model provides a sound-deadening chamber directivity test baffle, comprising a test baffle and an angle adjusting assembly; the angle adjusting assembly comprises an annular guide rail, an installation table, a plurality of sliding seats and a supporting bottom plate formed by surrounding a plurality of block-shaped bodies at equal angles, wherein the annular guide rail is fixedly installed above the supporting bottom plate, the sliding seats are respectively connected with the annular guide rail in a sliding mode, the sliding seats are arranged above the annular guide rail at intervals, the installation table is fixedly installed above the sliding seats, and the test baffle is movably arranged above the installation table.
The two sides of the sliding seat are provided with limiting pieces, and the limiting pieces on the two sides of the sliding seat are respectively attached to the two side faces of the annular guide rail.
The side of the annular guide rail is provided with a mounting bracket, the bottom of the limiting piece is provided with a movable roller, and the bottom of the movable roller is in contact with the top of the mounting bracket.
The angle adjusting assembly further comprises a plurality of supporting blocks, the supporting blocks are fixedly connected with the annular guide rail respectively, and the supporting blocks are arranged at the bottom of the annular guide rail at intervals.
The test baffle comprises a mounting table, a first connecting seat, a second connecting seat, a connecting rod, a horizontal adjusting component, a damping chamber directivity test baffle and a damping chamber directivity test baffle, wherein the damping chamber directivity test baffle further comprises the horizontal adjusting component, the horizontal adjusting component comprises a transverse guide rail, a first connecting seat, a longitudinal guide rail, a second connecting seat and the connecting rod, the test baffle is in sliding connection with the transverse guide rail and is vertically arranged on the transverse guide rail, the transverse guide rail is fixedly connected with the mounting table, the first connecting seat is fixedly arranged on the transverse guide rail, the longitudinal guide rail is fixedly arranged at the bottom of the side of the test baffle, the second connecting seat is in sliding connection with the longitudinal guide rail, and two ends of the connecting rod are respectively hinged with the first connecting seat and the second connecting seat.
The inside of second connecting seat is provided with the block structure, the interval is provided with a plurality of draw-in grooves about the second connecting seat, the block structure includes spring and block support, the both ends of spring respectively with block support with second connecting seat fixed connection, the block support with second connecting seat sliding connection, the one end of block support stretches out the second connecting seat and is located one of them the inside of draw-in groove.
According to the anechoic chamber directivity test baffle, the supporting bottom plate is used for supporting the annular guide rail, the mounting table is used for mounting the test baffle, the sliding seat is used for connecting the mounting table and the annular guide rail, and can slide on the annular guide rail, so that the mounting table can rotate relative to the annular guide rail, and when the angle of the test baffle needs to be adjusted, the mounting table can be directly rotated, and the position of the test baffle can be adjusted, so that directivity test can be conveniently conducted.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic structural view of a first embodiment of the present utility model.
Fig. 2 is a structural cross-sectional view of a first embodiment of the present utility model.
Figure 3 is a cross-sectional view of the utility model at A-A in figure 2.
Fig. 4 is a schematic structural view of a second embodiment of the present utility model.
Fig. 5 is a partial cross-sectional view of the present utility model at a second connection seat.
101-test baffles, 102-annular guide rails, 103-mounting tables, 104-sliding seats, 105-supporting bottom plates, 106-limiting plates, 107-mounting brackets, 108-movable rollers, 109-supporting blocks, 201-transverse guide rails, 202-first connecting seats, 203-longitudinal guide rails, 204-second connecting seats, 205-connecting rods, 206-clamping grooves, 207-springs and 208-clamping brackets.
Detailed Description
The following detailed description of embodiments of the utility model, examples of which are illustrated in the accompanying drawings and, by way of example, are intended to be illustrative, and not to be construed as limiting, of the utility model.
The first embodiment of the utility model is as follows:
referring to fig. 1-3, fig. 1 is a schematic structural view of a first embodiment of the present utility model, fig. 2 is a sectional structural view of the first embodiment of the present utility model, and fig. 3 is a sectional view of fig. 2 A-A of the present utility model. The utility model provides a sound-deadening chamber directivity test baffle which comprises a test baffle 101 and an angle adjusting assembly, wherein the angle adjusting assembly comprises an annular guide rail 102, a mounting table 103, a plurality of sliding seats 104 and a supporting bottom plate 105 formed by surrounding a plurality of block-shaped bodies at equal angles;
for this embodiment, the circular guide rail 102 is fixedly mounted above the supporting base plate 105, the plurality of sliding seats 104 are respectively slidably connected with the circular guide rail 102 and are arranged above the circular guide rail 102 at intervals, the mounting table 103 is fixedly mounted above the plurality of sliding seats 104, and the test baffle 101 is movably arranged above the mounting table 103. The supporting base plate 105 is used for supporting the annular guide rail 102, the mounting table 103 is used for mounting the test baffle 101, the sliding seat 104 is used for connecting the mounting table 103 and the annular guide rail 102, the sliding seat 104 can slide on the annular guide rail 102, further the mounting table 103 can rotate relative to the annular guide rail 102, and when the angle of the test baffle 101 needs to be adjusted, the mounting table 103 can be directly rotated, and then the position of the test baffle 101 is adjusted, so that directivity test can be conducted.
Specifically, the two sides of the sliding seat 104 are provided with limiting pieces 106, and the limiting pieces 106 on the two sides of the sliding seat 104 are respectively attached to two side surfaces of the annular guide rail 102. The limiting pieces 106 on two sides of the sliding seat 104 are used for limiting the position of the sliding seat 104, so that the sliding seat 104 cannot easily fall off from the annular guide rail 102.
In addition, a mounting bracket 107 is arranged on the side surface of the annular guide rail 102, a movable roller 108 is arranged at the bottom of the limiting piece 106, and the bottom of the movable roller 108 is in contact with the top of the mounting bracket 107. The mounting bracket 107 is used for supporting the movable roller 108, and the movable roller 108 rolls on the mounting bracket 107 so as to facilitate the movement of the sliding seat 104 on the annular guide rail 102.
Secondly, the angle adjusting assembly further comprises a plurality of supporting blocks 109, the supporting blocks 109 are respectively and fixedly connected with the annular guide rail 102, and the supporting blocks 109 are arranged at intervals at the bottom of the annular guide rail 102. The supporting blocks 109 are contacted with the ground, so that the contact area between the directivity test baffle of the anechoic chamber and the ground is increased, and the stability of the directivity test baffle of the anechoic chamber is improved.
When the anechoic chamber directivity test baffle of the present embodiment is used, the mounting block 103 is rotated with respect to the circular guide 102 so that the test baffle 101 rotates together with the mounting block 103, thereby adjusting the test baffle 101 to a desired angle for directivity test.
The second embodiment of the utility model is as follows:
referring to fig. 4 and 5, fig. 4 is a schematic structural view of a second embodiment of the present utility model, and fig. 5 is a partial cross-sectional view of a second connecting seat of the present utility model. The baffle for testing directivity of the anechoic chamber of the embodiment further comprises a horizontal adjusting component, wherein the horizontal adjusting component comprises a transverse guide rail 201, a first connecting seat 202, a longitudinal guide rail 203, a second connecting seat 204 and a connecting rod 205;
for this embodiment, the test baffle 101 is slidably connected with the transverse guide 201, and is vertically disposed on the transverse guide 201, the transverse guide 201 is fixedly connected with the mounting table 103, the first connecting seat 202 is fixedly disposed on the transverse guide 201, the longitudinal guide 203 is fixedly mounted at the bottom of the test baffle 101, the second connecting seat 204 is slidably connected with the longitudinal guide 203, and two ends of the connecting rod 205 are respectively hinged with the first connecting seat 202 and the second connecting seat 204. The transverse guide rail 201 is used for horizontal movement of the test mask 101, the longitudinal guide rail 203 is used for longitudinal movement of the second connecting seat 204, the connecting rod 205 is used for connecting the first connecting seat 202 and the second connecting seat 204, and when the angle of the connecting rod 205 changes relative to the first connecting seat 202, the connecting rod 205 drives the test mask 101 to slide so as to adjust the position of the test mask 101 in the horizontal direction.
Specifically, the inside of second connecting seat 204 is provided with the block structure, the interval is provided with a plurality of draw-in grooves 206 about the second connecting seat 204, the block structure includes spring 207 and block support 208, the both ends of spring 207 respectively with block support 208 with second connecting seat 204 fixed connection, block support 208 with second connecting seat 204 sliding connection, block support 208's one end stretches out second connecting seat 204 and is located one of them the inside of draw-in groove 206. The clamping structure is used for fixing the second connecting seat 204 and the longitudinal guide rail 203, and further fixing the position of the test mask 101. The spring 207 abuts against the clamping support 208, so that one end of the clamping support 208, which is far away from the spring 207, enters into one of the clamping grooves 206 to clamp, thereby fixing the second connecting seat 204 and the longitudinal guide rail 203, and when the test mask 101 needs to be adjusted, the clamping support 208 is pressed to withdraw the clamping support 208 from the clamping groove 206, so that the second connecting seat 204 can slide relative to the longitudinal guide rail 203, and the position of the test mask 101 can be adjusted.
When the anechoic chamber directivity test baffle according to the present embodiment is used, the mounting table 103 is rotated relative to the annular guide rail 102, so that the test baffle 101 rotates together with the mounting table 103, thereby adjusting the test baffle 101 to a desired angle, and then the engaging support 208 may be pressed to withdraw the engaging support 208 from the engaging groove 206, so that the second connecting seat 204 may slide relative to the longitudinal guide rail 203, so that the horizontal position of the test baffle 101 may be adjusted, thereby facilitating the directivity test.
The foregoing disclosure is only illustrative of one or more preferred embodiments of the present utility model, and it is not intended to limit the scope of the claims hereof, as persons of ordinary skill in the art will understand that all or part of the processes for practicing the embodiments described herein may be practiced with equivalent variations in the claims, which are within the scope of the utility model.
Claims (6)
1. A sound-deadening chamber directivity test baffle comprises a test baffle, and is characterized in that,
the device also comprises an angle adjusting component;
the angle adjusting assembly comprises an annular guide rail, an installation table, a plurality of sliding seats and a supporting bottom plate formed by surrounding a plurality of block-shaped bodies at equal angles, wherein the annular guide rail is fixedly installed above the supporting bottom plate, the sliding seats are respectively connected with the annular guide rail in a sliding mode, the sliding seats are arranged above the annular guide rail at intervals, the installation table is fixedly installed above the sliding seats, and the test baffle is movably arranged above the installation table.
2. The anechoic chamber directivity test baffle according to claim 1, wherein,
limiting sheets are arranged on two sides of the sliding seat, and the limiting sheets on two sides of the sliding seat are respectively attached to two side faces of the annular guide rail.
3. The anechoic chamber directivity test baffle according to claim 2, characterized in that,
the side of annular guide rail is provided with the installing support, the bottom of spacing piece is provided with movable gyro wheel, the bottom of movable gyro wheel with the top contact of installing support.
4. The anechoic chamber directivity test baffle according to claim 3, characterized in that,
the angle adjusting assembly further comprises a plurality of supporting blocks, the supporting blocks are fixedly connected with the annular guide rail respectively, and the supporting blocks are arranged at the bottom of the annular guide rail at intervals.
5. The anechoic chamber directivity test baffle according to claim 4, wherein,
the sound-deadening chamber directivity test baffle further comprises a horizontal adjusting component, the horizontal adjusting component comprises a transverse guide rail, a first connecting seat, a longitudinal guide rail, a second connecting seat and a connecting rod, the test baffle is in sliding connection with the transverse guide rail and is vertically arranged on the transverse guide rail, the transverse guide rail is fixedly connected with the mounting table, the first connecting seat is fixedly arranged on the transverse guide rail, the longitudinal guide rail is fixedly arranged at the bottom of the side of the test baffle, the second connecting seat is in sliding connection with the longitudinal guide rail, and two ends of the connecting rod are respectively hinged with the first connecting seat and the second connecting seat.
6. The anechoic chamber directivity test baffle according to claim 5, wherein,
the inside of second connecting seat is provided with the block structure, the interval is provided with a plurality of draw-in grooves about the second connecting seat, the block structure includes spring and block support, the both ends of spring respectively with block support with second connecting seat fixed connection, the block support with second connecting seat sliding connection, the one end of block support stretches out the second connecting seat is located one of them the inside of draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320745942.7U CN219608213U (en) | 2023-04-07 | 2023-04-07 | Baffle for testing directivity of anechoic chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320745942.7U CN219608213U (en) | 2023-04-07 | 2023-04-07 | Baffle for testing directivity of anechoic chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219608213U true CN219608213U (en) | 2023-08-29 |
Family
ID=87752815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320745942.7U Active CN219608213U (en) | 2023-04-07 | 2023-04-07 | Baffle for testing directivity of anechoic chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219608213U (en) |
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2023
- 2023-04-07 CN CN202320745942.7U patent/CN219608213U/en active Active
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