CN210294175U - Fixed rack of in-situ sound absorption coefficient measuring equipment - Google Patents
Fixed rack of in-situ sound absorption coefficient measuring equipment Download PDFInfo
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- CN210294175U CN210294175U CN201920877704.5U CN201920877704U CN210294175U CN 210294175 U CN210294175 U CN 210294175U CN 201920877704 U CN201920877704 U CN 201920877704U CN 210294175 U CN210294175 U CN 210294175U
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 80
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 31
- 239000000523 sample Substances 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000010421 standard material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an normal position acoustic absorption coefficient measuring equipment fixed rack, normal position acoustic absorption coefficient measuring equipment fixed rack includes: the test material mounting table and the in-situ sound absorption coefficient measuring equipment mounting bracket. The in-situ sound absorption coefficient measuring equipment mounting bracket is detachably connected with the test material mounting table, and the height of the in-situ sound absorption coefficient measuring equipment mounting bracket relative to the test material mounting table is adjustable, so that the distance between a probe on the in-situ sound absorption coefficient measuring equipment and a test material placed on the test material mounting table is kept within a preset range. According to the utility model discloses a fixed rack of normal position acoustic absorption coefficient measuring equipment has the fixed effectual, the stable advantage of measuring result of messenger's normal position acoustic absorption coefficient measuring equipment.
Description
Technical Field
The utility model belongs to the technical field of the measuring equipment technique and specifically relates to a normal position acoustic absorption coefficient measuring equipment fixed rack is related to.
Background
At present, the operation mode of the in-situ sound absorption coefficient measuring equipment is handheld measurement, and particularly the sound absorption coefficient of related materials in the actual installation state of a vehicle is measured. The method has the characteristics of convenience and easiness in use for the materials needing movable measurement. However, for the target measurement of the standard material, there are problems that the sound absorption coefficient measurement result is unstable due to the shaking of the equipment in a handheld state and the diffusion around the sound absorption material. Therefore, there is room for improvement in the above-described technology.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide an normal position acoustic absorption coefficient measuring equipment fixed rack, normal position acoustic absorption coefficient measuring equipment fixed rack has the fixed effectual, the stable advantage of measuring result of messenger normal position acoustic absorption coefficient measuring equipment.
According to the utility model discloses normal position acoustic absorption coefficient measuring equipment fixing rack, include: the test material mounting table and the in-situ sound absorption coefficient measuring equipment mounting bracket are detachably connected, and the in-situ sound absorption coefficient measuring equipment mounting bracket is adjustable in height relative to the test material mounting table, so that a distance between a probe on the in-situ sound absorption coefficient measuring equipment and a test material placed on the test material mounting table is kept within a preset range.
According to the utility model discloses a fixed rack of normal position acoustic absorption coefficient measuring equipment has the fixed effectual, the stable advantage of measuring result of messenger's normal position acoustic absorption coefficient measuring equipment.
According to the utility model discloses normal position acoustic absorption coefficient measuring equipment fixed rack of an embodiment, the predetermined scope is 1mm-2 mm.
According to the utility model discloses an embodiment's normal position acoustic absorption coefficient measuring equipment fixing rack, normal position acoustic absorption coefficient measuring equipment installing support includes: the in-situ sound absorption coefficient measuring equipment is detachably connected to the horizontal supporting rod.
According to the utility model discloses an embodiment's normal position acoustic absorption coefficient measuring equipment fixed rack, vertical regulation pole includes: the adjusting part can move up and down in the vertical direction relative to the fixing part.
According to the utility model discloses an embodiment's normal position acoustic absorption coefficient measuring equipment fixed rack still includes: the fixing part is constructed into a hollow tubular structure, the adjusting part at least partially extends into the hollow tubular structure, and the locking part is clamped on the outer peripheral surface of the adjusting part and stops against the upper end surface of the fixing part.
According to the utility model discloses an embodiment's normal position acoustic absorption coefficient measuring equipment fixed rack, the lock piece includes: buckling part and retaining member, the buckling part cover is established on the outer peripheral face of regulating part, the retaining member is suitable for wearing to establish the cooperation and is in on the screw thread mounting hole on the buckling part, thereby make the buckling part presss from both sides tightly the regulating part.
According to the utility model discloses an embodiment's normal position acoustic absorption coefficient measuring equipment fixed rack, the test material mount table includes: the device comprises a bottom plate and a peripheral plate, wherein the peripheral plate is arranged around the bottom plate.
According to the utility model discloses an in situ acoustic absorption coefficient measuring equipment fixed rack, the bottom plate is the rectangular plate, the probe is in projection on the bottom plate with the center coincidence of bottom plate.
According to the utility model discloses an in situ sound absorption coefficient measuring equipment fixed rack, the bottom plate is the steel sheet.
According to the utility model discloses an in situ sound absorption coefficient measuring equipment fixed rack, the thickness of bottom plate is 8mm-12mm, the thickness of week is 1.5mm-2.5 mm.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a fixing rack of an in-situ sound absorption coefficient measuring device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an in-situ acoustic absorption coefficient measurement device mounting bracket according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a locking member according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an in-situ sound absorption coefficient measuring apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a test material mounting table according to an embodiment of the present invention.
Reference numerals:
100-in-situ sound absorption coefficient measuring equipment fixing rack, 1-test material mounting table, 11-bottom plate, 12-peripheral plate, 2-in-situ sound absorption coefficient measuring equipment mounting bracket, 21-horizontal support rod, 22-vertical adjusting rod, 23-fixing part, 24-adjusting part, 25-base, 26-connecting hole, 3-in-situ sound absorption coefficient measuring equipment, 31-probe, 32-fastening piece, 33-sounding equipment, 34-connecting part, 4-locking piece, 41-buckling part, 42-locking piece, 43-through hole, 44-opening part, X-horizontal direction and Y-vertical direction.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
An in-situ sound absorption coefficient measuring apparatus stationary gantry 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 5. As shown in fig. 1, the in-situ sound absorption coefficient measuring apparatus fixing stage 100 according to an embodiment of the present invention may include: the test material mounting table 1 and the in-situ sound absorption coefficient measuring equipment mounting bracket 2 are connected together through a base 25. Further, the in-situ sound absorption coefficient measuring device mounting bracket 2 is detachably connected with the test material mounting table 1, and the height of the in-situ sound absorption coefficient measuring device mounting bracket 2 relative to the test material mounting table 1 is adjustable in the vertical direction (Y direction), so that the distance between the probe 31 on the in-situ sound absorption coefficient measuring device 3 and the test material placed on the test material mounting table 1 is kept within a preset range. For traditional hand-held type normal position acoustic absorption coefficient measuring equipment 3, the utility model discloses normal position acoustic absorption coefficient measuring equipment stationary gantry 100 can make normal position acoustic absorption coefficient measuring equipment 3's fixed more stable, and then makes the measuring result more accurate.
According to the utility model discloses normal position acoustic absorption coefficient measuring equipment fixing rack 100 has the fixed effectual, the stable advantage of measuring result of messenger normal position acoustic absorption coefficient measuring equipment 3.
According to the utility model discloses an in situ sound absorption coefficient measuring equipment fixed rack 100, the predetermined scope can be 1mm-2 mm. For example, in one particular embodiment, the predetermined range may be 1 mm. Further, as shown in fig. 2, the in-situ sound absorption coefficient measuring apparatus mounting bracket 2 may include: a horizontal support bar 21 and a vertical adjustment bar 22, in particular, the in-situ sound absorption coefficient measuring apparatus 3 are detachably connected to the horizontal support bar 21. Specifically, a connecting hole 26 is formed in the horizontal support rod 21, a fastening member 32 is arranged at the upper end of the in-situ sound absorption coefficient measuring device 3, and the fastening member 32 can be inserted into the connecting hole 26, so that the in-situ sound absorption coefficient measuring device 3 is fixed on the horizontal support rod 21. Further, the vertical adjustment rod 22 may include: the fixing portion 23 and the adjusting portion 24, specifically, the outer diameter of the fixing portion 23 is larger than that of the adjusting portion 24, and the adjusting portion 24 is movable up and down in the vertical direction (Y direction) relative to the fixing portion 23. Further, as shown in fig. 4, the in-situ sound absorption coefficient measuring apparatus 3 may further include: sound generating equipment 33 and connecting portion 34, specifically, go up the upper portion of sound generating equipment 33 in vertical direction (Y to) and link to each other with horizontal support bar 21 through fastener 32, optionally, fastener 32 can adopt the bolt that the diameter is 6mm, and sound generating equipment 33 passes through fastener 32 to be fixed on normal position acoustic absorption coefficient measuring equipment installing support 2 promptly, connects reliable and stable, and it is convenient to dismantle, and the lower part and the connecting portion 34 of sound generating equipment 33 link to each other, and the lower extreme of connecting portion 34 is provided with probe 31 for gather the relevant parameter to the material under test.
According to the utility model discloses normal position acoustic absorption coefficient measuring equipment fixing rack 100, as shown in FIG. 1, can also include: a locking member 4. Further, the fixing portion 23 is configured as a hollow tubular structure, and the adjusting portion 24 extends into the hollow tubular structure at least partially through the through hole 43 of the locking member 4, and at the same time, the locking member 4 is clamped on the outer peripheral surface of the adjusting portion 24 and abuts against the upper end surface of the fixing portion 23. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.
According to the utility model discloses normal position acoustic absorption coefficient measuring equipment fixing rack 100 of an embodiment, as shown in fig. 3, lock 4 can include: a snap portion 41 and a locking member 42. Specifically, the engaging portion 41 is disposed on the outer peripheral surface of the adjusting portion 24, and the locking member 42 is adapted to fit through a threaded mounting hole (not shown) on the engaging portion 41, so that the engaging portion 41 can clamp the adjusting portion 24. Specifically, when the engagement portion 41 is required to clamp the adjustment portion 24, the opening portion 44 is gradually reduced in the horizontal direction (X direction); when the engaging portion 41 is required to release the regulating portion 24, the opening portion 44 is gradually enlarged in the horizontal direction (X direction).
According to the utility model discloses normal position acoustic absorption coefficient measuring equipment fixing rack 100 of an embodiment, as shown in fig. 5, test material mount table 1 can include: a bottom plate 11 and a peripheral plate 12. Specifically, the peripheral plate 12 is disposed around the bottom plate 11, the bottom plate 11 may be a rectangular plate, and the projection of the probe 31 on the bottom plate 11 coincides with the center of the bottom plate 11. Specifically, the material of the bottom plate 11 may be a steel plate. The thickness of the base plate 11 may be 8mm to 12mm, for example, in one particular embodiment, the thickness of the base plate 11 may be 10 mm. In this way, strong reflectivity of the bottom plate 11 can be ensured. Further, the thickness of the peripheral plate 12 may be 1.5mm to 2.5mm, for example, in one particular embodiment, the thickness of the peripheral plate 12 may be 2 mm. This is advantageous to ensure that sound does not leak from the peripheral plate 12.
To sum up, according to the utility model discloses normal position acoustic absorption coefficient measuring equipment fixed rack 100 has fixed effectual, the stable advantage of measuring result.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An in-situ acoustic absorption coefficient measurement device stationary gantry (100), comprising:
a test material mounting table (1);
the in-situ sound absorption coefficient measuring device comprises an in-situ sound absorption coefficient measuring device mounting bracket (2), wherein the in-situ sound absorption coefficient measuring device mounting bracket (2) is detachably connected with a test material mounting table (1), and the in-situ sound absorption coefficient measuring device mounting bracket (2) is opposite to the test material mounting table (1) and adjustable in height, so that the distance between a probe (31) on the in-situ sound absorption coefficient measuring device (3) and a test material placed on the test material mounting table (1) is kept within a preset range.
2. The in situ sound absorption coefficient measuring apparatus set forth (100) of claim 1 wherein said predetermined range is 1mm-2 mm.
3. The in-situ sound absorption coefficient measuring device holding rack (100) according to claim 1, wherein the in-situ sound absorption coefficient measuring device mounting bracket (2) comprises: horizontal support pole (21) and vertical adjusting pole (22), normal position acoustic absorption coefficient measuring equipment (3) detachably connect in on the horizontal support pole (21).
4. The in situ sound absorption coefficient measuring apparatus set forth (100) of claim 3 wherein said vertical adjustment rod (22) comprises: the fixing part (23) and the adjusting part (24), wherein the adjusting part (24) can move up and down in the vertical direction relative to the fixing part (23).
5. The in situ sound absorption coefficient measuring apparatus set forth (100) of claim 4, further comprising: a locking member (4), wherein the fixing part (23) is configured as a hollow tubular structure, the adjusting part (24) at least partially extends into the hollow tubular structure, and the locking member (4) is clamped on the outer circumferential surface of the adjusting part (24) and is stopped on the upper end surface of the fixing part (23).
6. The in situ sound absorption coefficient measuring apparatus set forth (100) of claim 5, wherein said lock (4) comprises: buckling parts (41) and retaining member (42), buckling parts (41) cover is established on the outer peripheral face of regulating part (24), retaining member (42) are suitable for to wear to establish the cooperation and are in on the screw thread mounting hole on buckling parts (41), thereby make buckling parts (41) press from both sides tightly regulating part (24).
7. The in situ sound absorption coefficient measuring apparatus fixture stand (100) of claim 1, wherein the test material mounting stage (1) comprises: a bottom plate (11) and a peripheral plate (12), the peripheral plate (12) being arranged around the bottom plate (11).
8. The in situ sound absorption coefficient measuring apparatus holding rack (100) according to claim 7, wherein the base plate (11) is a rectangular plate, and a projection of the probe (31) on the base plate (11) coincides with a center of the base plate (11).
9. The in situ sound absorption coefficient measuring apparatus set forth (100) of claim 7 wherein said base plate (11) is a steel plate.
10. The in-situ sound absorption coefficient measuring apparatus fixing stand (100) according to claim 7, wherein the bottom plate (11) has a thickness of 8mm to 12mm, and the peripheral plate (12) has a thickness of 1.5mm to 2.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920877704.5U CN210294175U (en) | 2019-06-12 | 2019-06-12 | Fixed rack of in-situ sound absorption coefficient measuring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920877704.5U CN210294175U (en) | 2019-06-12 | 2019-06-12 | Fixed rack of in-situ sound absorption coefficient measuring equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210294175U true CN210294175U (en) | 2020-04-10 |
Family
ID=70096295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920877704.5U Active CN210294175U (en) | 2019-06-12 | 2019-06-12 | Fixed rack of in-situ sound absorption coefficient measuring equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210294175U (en) |
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2019
- 2019-06-12 CN CN201920877704.5U patent/CN210294175U/en active Active
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