CN105092020B - Acoustic power level test fixture - Google Patents
Acoustic power level test fixture Download PDFInfo
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- CN105092020B CN105092020B CN201410199730.9A CN201410199730A CN105092020B CN 105092020 B CN105092020 B CN 105092020B CN 201410199730 A CN201410199730 A CN 201410199730A CN 105092020 B CN105092020 B CN 105092020B
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- hole
- connector
- regulation pipe
- arc section
- power level
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Abstract
The invention provides a kind of acoustic power level test fixture, including：Support bar；Arc section, in perpendicular and its one end is rotatably detachably connected with support bar, and multiple microphone clips have been positioned apart from arc section.Because arc section is removably connected with support bar, therefore testing radius can be changed, improve testing efficiency.It is simple in construction, it is easily installed and dismantles.Therefore the acoustic power level test fixture of the present invention is simple in construction and testing efficiency is high.
Description
Technical field
The present invention relates to a kind of acoustic power level test fixture.
Background technology
Current half ball acoustic power level test fixture structure is more complicated, mainly with various methods simultaneously by ten or
20 point positions are also secured on machine frame, are gathered with this to complete the sound pressure level of all measuring points.Though this frock
So meet that acoustic power level is tested, but there is also Railway Project：
1 at the same the frock of fixed measuring point need to pre-install ten or 20 microphones, dismounting Mike is also required to after having surveyed
Wind, devote a tremendous amount of time, testing efficiency is low；
2nd, this frock is fixed testing radius, can only be directed to the sound source progress acoustic power level test for formulating physical dimension,
Limitation is bigger, can test product scope it is small.
The content of the invention
The present invention is intended to provide acoustic power level test fixture a kind of simple in construction and high testing efficiency.
To achieve these goals, the invention provides a kind of acoustic power level test fixture, including：Support bar；Arc section,
In perpendicular and its one end is rotatably detachably connected with support bar, and multiple Mikes have been positioned apart from arc section
Wind presss from both sides.
Further, in addition to：Regulation pipe, it is movably disposed on support bar, one end of arc section is around vertical rotation
Axis is rotatably detachably connected with regulation pipe.
Further, arc section is 1/4 arc section.
Further, microphone clip is 4 and set evenly and at intervals.
Further, support bar is connected by the first connector with regulation pipe, and the first connector has：First through hole,
First connector can be movably set on support bar by first through hole along the bearing of trend of support bar, the footpath of first through hole
To with the first fixed via so that the first connector is fixed on support bar.
Further, the first connector also has：Second through hole, the first connector can be along regulation pipes by the second through hole
Bearing of trend is movably set in regulation pipe, and the radial direction of the second through hole has the second fixed via, wherein, the first fixation is logical
Hole connects first through hole and the second through hole and is coaxially disposed with the second fixed via.
Further, the axis of first through hole and the axis of the second through hole are mutually perpendicular to.
Further, support bar is arranged in a mutually vertical manner with regulation pipe.
Further, the cross section of regulation pipe is square.
Further, in addition to the second connector, rotatably it is arranged in regulation pipe, the second connector has：3rd
Through hole, one end of arc section are arranged in third through-hole, and two the 3rd that there is the radial direction of third through-hole confronting coaxial to set are solid
Through hole is determined to fix arc section.
Further, the second connector also has：Two the 4th fixed vias, in the side wall in the second connector simultaneously
Set along the radial direction confronting coaxial of the second connector so that the second connector is fixed in regulation pipe, wherein, regulation pipe
One end is located between one end and the 4th fixed via of arc section.
Apply the technical scheme of the present invention, acoustic power level test fixture includes support bar and arc section.Arc section is positioned at perpendicular
In straight plane and its one end is rotatably detachably connected with support bar, and multiple microphone clips have been positioned apart from arc section.
Because arc section is removably connected with support bar, therefore testing radius can be changed, improve testing efficiency.It is simple in construction,
It is easily installed and dismantles.Therefore the acoustic power level test fixture of the present invention is simple in construction and testing efficiency is high.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the front view of the first embodiment of the acoustic power level test fixture of the present invention；
Fig. 2 shows the front view of second of embodiment of the acoustic power level test fixture of the present invention；
Fig. 3 shows Fig. 2 left view；
Fig. 4 shows the three-dimensional structure diagram of the microphone clip of the present invention；
Fig. 5 shows the three-dimensional structure diagram of the first connector of the present invention；
Fig. 6 shows the three-dimensional structure diagram of the second connector of the present invention；And
Fig. 7 shows the enlarged drawing of one end of the regulation pipe of the present invention.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, the invention provides a kind of acoustic power level test fixture.Specifically, the acoustic power level test fixture
Including support bar 10 and arc section 30.Arc section 30 is located in perpendicular, one end of arc section 30 rotatably with support bar
10 are connected.For ease of changing the arc section 30 of different radii, arc section 30 is detachably connected with support bar 10.On arc section 30
Multiple microphone clips 40 are positioned apart from, microphone clip 40 is used for the microphone for fixing test.
Because arc section 30 is removably connected with support bar 10, therefore the arc section 30 that can change different radii enters
And testing radius is changed, and it is applied widely, improve testing efficiency.Such design structure is simple, reduces frock space-consuming,
Also allow for installing and dismantle.
As shown in Fig. 2 regulation pipe 20 is movably disposed on support bar 10, for adjust regulation pipe 20 height and
The length of the threshold value support bar 10 of regulation pipe 20.One end of arc section 30 around vertical-rotation-axis rotatably with regulation pipe
20 are detachably connected.
As shown in figure 1, acoustic power level test fixture also has base 70, base 70 is arranged on the bottom of support bar 10, rises
To the effect for supporting and consolidating whole acoustic power level test fixture.
As illustrated in fig. 1, it is preferred that arc section 30 is 1/4 arc section.The manufacture of 1/4 arc section is easy, cost-effective, test
Effect is good.Moreover, the rotation of 1/4 arc section is turned around as a semicircle, meet test request, simultaneously because arc section also allows for
Slip of the microphone clip 40 in test process.
As shown in figure 3, microphone clip 40 includes the connecting portion 41 at microphone clip main body and microphone clip main body both ends, connection
Portion 41 has circular hole, has two fixed vias being coaxially disposed in the side wall of circular hole.Wherein, a circular hole of microphone clip 40
It is set on arc section 30, and is fixed on by fixed via microphone clip 40 on arc section 30.Microphone clip 40
Another circular hole and fixed via are used for the microphone that is connected.
Preferably, microphone clip 40 is 4 and is arranged on evenly and at intervals on arc section 40.Provide in the present embodiment
A kind of single only fixes the acoustic power level test fixture of 4 microphones, it is not necessary to arranges that more microphones can carry out whole again
Test, improve testing efficiency.
As shown in figure 1, support bar 10 is connected by the first connector 50 with regulation pipe 20.The effect of first connector 50
It is to realize that frock can adjust the height of regulation pipe 20 and the length of threshold value support bar 10.
As shown in figure 4, the first connector 50 has first through hole 51, the first connector 50 can be along branch by first through hole 51
The bearing of trend of strut 10 is movably set on support bar 10, the radial direction of first through hole 51 have the first fixed via 52 with
First connector 50 is fixed on support bar 10.First connector 50 also has the second through hole 53, and the first connector 50 passes through
Second through hole 53 can be movably set in regulation pipe 20 along the bearing of trend of regulation pipe 20, and the radial direction of the second through hole 53 has
Second fixed via 54, wherein, the first fixed via 52 connection the through hole 53 of first through hole 51 and second and with the second fixed via
54 are coaxially disposed.In the present embodiment, first through hole 51 is circular hole, and the second through hole 53 is square hole.
As shown in Figure 4, it is preferable that the axis of first through hole 51 and the axis of the second through hole 53 are mutually perpendicular to so that
Support bar 10 is arranged in a mutually vertical manner with regulation pipe 20.Support bar 10 is vertical to be arranged on working face, and working face is horizontal plane, or
Person's support bar 10 is vertically situated on the base 70 being placed on working face, and regulation pipe 20 is perpendicular to support bar 10, so adjusting
Pipe 20 is saved all the time with horizontal plane keeping parallelism, ensure that the accuracy of whole device test position.
Preferably, the cross section of regulation pipe 20 is square.
As shown in figure 5, acoustic power level test fixture also includes the second connector 60, it is preferable that the second connector 60 is formed
Arc section 30 encloses the vertical-rotation-axis rotated about, i.e. the second connector 60 is vertical rotary shaft.Second connector 60 can turn
Dynamic is arranged in regulation pipe 20, and the second connector 60 has third through-hole 61, and one end of arc section 30 is arranged at third through-hole
In 61, the radial direction of third through-hole 61 has two the 3rd fixed vias 62 that confronting coaxial is set to fix arc section 30.Second
Connector 60 also has two the 4th fixed vias 63, in the side wall in the second connector 60 and along the second connector 60
Radial direction confronting coaxial is set so that the second connector 60 is fixed in regulation pipe 20, wherein, one end of regulation pipe 20 is located at
Between one end of arc section 30 and the 4th fixed via 63.The rotation of the second connector 60 in the present embodiment drives arc section 30
Rotation, to carry out the test of different angle.
As shown in fig. 6, it is coaxial to set one end of the second connector 60 to be offered up and down on two surfaces in regulation pipe 20
The connecting hole 21 of setting, the second connector 60 are located in connecting hole 21, and regulation pipe 20 is exposed at both ends.The one of second connector 60
Hold and be used to the second connector 60 being fixed on regulation pipe 20 for the arc section 30 that is connected, the other end of the second connector 60
On.The connecting hole 21 of the upper surface of regulation pipe 20 has serration portion prominent in phase.Wherein depressed part is to pass through the 4th
The small column or bolt of fixed via 63 provide receiving space.
Some through holes that fixation is played in above-described embodiment can be screw, can be penetrated with bolt to play fixation
The effect of part.And in this frock not used time, the bolt between each parts of fixation need to only be unscrewed, each parts are simple
Remove, each parts are all small volumes of linear different in size itself, are taken when each parts are put together empty
Between it is very small.
A preferred embodiment of the present invention is specific as follows：
Support bar 10 is arranged in a mutually vertical manner with regulation pipe 20, and regulation pipe 20 is moved along the bearing of trend of support bar 10, adjustable
The height of whole test fixture is saved, highly have to be larger than the arc radius of 1/4 arc section, prevents 1/4 arc section from mopping floor, is easy to 1/
4 arc sections rotate.Regulation pipe 20 is moved along the bearing of trend of regulation pipe 20, the left part of controllable adjustable pipe 20 connects circular arc
That one end of the regulation pipe 20 of section 30 have to be larger than the circle of 1/4 arc section to the horizontal length that support bar 10 is round bar, the length
Arc radius, it is easy to 1/4 arc section to rotate, avoids 1/4 arc section from being stopped during rotation by support bar 10, the He of regulation pipe 20
Arc section 30 is connected by the second connector 60.1/4 circular arc is for example rotated into stud and regulation pipe by the second connector 60
20 end links together, because assembling and gravity, 1/4 arc section are on vertical guide.At the same time, in 1/4 circle
Four different heights of four diverse locations i.e. apart from same level load onto 4 microphone clips 40 on arc, so far whole frock
It is completed.Test can be proceeded by, by rotating the second connector 60 arc section 30 can be driven to rotate together, make 1/4
The projection of arc section on the ground is respectively at 60 °, 120 °, 180 °, 240 °, 300 °, 360 ° of six positions, passes through 1/4 circular arc
The measuring point of 4 different heights is that the microphone of 4 diverse locations can gather with six rotation positions of 1/4 arc section above section
To the sound pressure level of 4*6=24 measuring point, so far sound pressure level collecting work completion, the numerical calculation of remaining simply acoustic power level.
In addition, if when needing to test the different sound source of apparent size, it is only necessary to 1/4 circular arc of different radii is changed, according to above-mentioned survey
Method for testing operates.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
Because arc section is removably connected with support bar, therefore testing radius can be changed, improve testing efficiency.Knot
Structure is simple, is easily installed and dismantles.Therefore the acoustic power level test fixture of the present invention is simple in construction and testing efficiency is high.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (8)
- A kind of 1. acoustic power level test fixture, it is characterised in that including：Support bar (10)；Arc section (30), in perpendicular and its one end is rotatably detachably connected with the support bar (10), described Multiple microphone clips (40) have been positioned apart from arc section (30)；Regulation pipe (20), it is movably disposed on the support bar (10), one end of the arc section (30) is around vertical rotation Axis is rotatably detachably connected with the regulation pipe (20)；Acoustic power level test fixture also includes the second connector (60), is rotatably arranged in the regulation pipe (20), described Second connector (60) has：Third through-hole (61), one end of the arc section (30) are arranged in the third through-hole (61), the third through-hole (61) radial direction has two the 3rd fixed vias (62) that confronting coaxial is set with the fixation arc section (30)；Two the 4th fixed vias (63), in the side wall in second connector (60) and along second connector (60) radial direction confronting coaxial is set so that second connector (60) is fixed in the regulation pipe (20), wherein, One end of the regulation pipe (20) is located between one end and the 4th fixed via (63) of the arc section (30),The regulation pipe (20) sets being offered up and down on two surfaces for one end of second connector (60) to be coaxially disposed Connecting hole (21), second connector (60) is located in the connecting hole (21), the upper surface of the regulation pipe (20) The connecting hole (21) there is serration portion prominent in phase, the depressed part of the saw-toothed convex portion is by described The small column or bolt of 4th fixed via (63) provide receiving space.
- 2. acoustic power level test fixture according to claim 1, it is characterised in that the arc section (30) is 1/4 circular arc Section.
- 3. acoustic power level test fixture according to claim 1 or 2, it is characterised in that the microphone clip (40) is 4 And set evenly and at intervals.
- 4. acoustic power level test fixture according to claim 1, it is characterised in that the support bar (10) connects by first Fitting (50) is connected with the regulation pipe (20), and first connector (50) has：First through hole (51), first connector (50) can prolonging along the support bar (10) by the first through hole (51) Stretch direction to be movably set on the support bar (10), the radial direction of the first through hole (51) has the first fixed via (52) so that first connector (50) is fixed on the support bar (10).
- 5. acoustic power level test fixture according to claim 4, it is characterised in that first connector (50) also has Have：Second through hole (53), first connector (50) can prolonging along the regulation pipe (20) by second through hole (53) Stretch direction to be movably set in the regulation pipe (20), the radial direction of second through hole (53) has the second fixed via (54), wherein, first fixed via (52) connect the first through hole (51) and second through hole (53) and with it is described Second fixed via (54) is coaxially disposed.
- 6. acoustic power level test fixture according to claim 5, it is characterised in that the axis of the first through hole (51) It is mutually perpendicular to the axis of second through hole (53).
- 7. acoustic power level test fixture according to claim 1, it is characterised in that the support bar (10) and the regulation Pipe (20) is arranged in a mutually vertical manner.
- 8. acoustic power level test fixture according to claim 1, it is characterised in that the cross section of the regulation pipe (20) is Square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410199730.9A CN105092020B (en) | 2014-05-13 | 2014-05-13 | Acoustic power level test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410199730.9A CN105092020B (en) | 2014-05-13 | 2014-05-13 | Acoustic power level test fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105092020A CN105092020A (en) | 2015-11-25 |
| CN105092020B true CN105092020B (en) | 2017-12-15 |
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ID=54572961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410199730.9A Active CN105092020B (en) | 2014-05-13 | 2014-05-13 | Acoustic power level test fixture |
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| CN (1) | CN105092020B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509875A (en) * | 2015-11-26 | 2016-04-20 | 常州大学 | Wall-hanging type sound intensity scanning test device |
| CN106454681A (en) * | 2016-12-08 | 2017-02-22 | 上海声望声学科技股份有限公司 | Acoustical power testing support |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2839985Y (en) * | 2005-05-12 | 2006-11-22 | 上海环达计算机科技有限公司 | Sound power measuring clamp |
| CN201429462Y (en) * | 2009-02-13 | 2010-03-24 | 北京声望声电技术有限公司 | Sound power measuring stand |
| JP2012045496A (en) * | 2010-08-27 | 2012-03-08 | Chugoku Electric Power Co Inc:The | Monitoring apparatus and monitoring method of crushing roller of vertical mill |
| CN203414166U (en) * | 2013-08-30 | 2014-01-29 | 杭州华集环境检测技术有限公司 | High-far degree controllable noise meter tripod |
| CN203824644U (en) * | 2014-05-13 | 2014-09-10 | 珠海格力电器股份有限公司 | Sound power level testing tool |
-
2014
- 2014-05-13 CN CN201410199730.9A patent/CN105092020B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2839985Y (en) * | 2005-05-12 | 2006-11-22 | 上海环达计算机科技有限公司 | Sound power measuring clamp |
| CN201429462Y (en) * | 2009-02-13 | 2010-03-24 | 北京声望声电技术有限公司 | Sound power measuring stand |
| JP2012045496A (en) * | 2010-08-27 | 2012-03-08 | Chugoku Electric Power Co Inc:The | Monitoring apparatus and monitoring method of crushing roller of vertical mill |
| CN203414166U (en) * | 2013-08-30 | 2014-01-29 | 杭州华集环境检测技术有限公司 | High-far degree controllable noise meter tripod |
| CN203824644U (en) * | 2014-05-13 | 2014-09-10 | 珠海格力电器股份有限公司 | Sound power level testing tool |
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| Publication number | Publication date |
|---|---|
| CN105092020A (en) | 2015-11-25 |
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