CN203824644U - Sound power level testing tool - Google Patents
Sound power level testing tool Download PDFInfo
- Publication number
- CN203824644U CN203824644U CN201420244653.XU CN201420244653U CN203824644U CN 203824644 U CN203824644 U CN 203824644U CN 201420244653 U CN201420244653 U CN 201420244653U CN 203824644 U CN203824644 U CN 203824644U
- Authority
- CN
- China
- Prior art keywords
- hole
- web member
- power level
- arc section
- sound power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model provides a sound power level testing tool comprising a support rod and an arc segment positioned in a vertical plane; one end of the arc segment is detachably connected with the support rod in a rotary manner; the arc segment is provided with a plurality of microphone clamps at intervals; the arc segment is detachably connected with the support rod so as to change a testing diameter, thus improving testing efficiency; the sound power level testing tool is simple in structure, convenient in mounting and dismounting, and high in testing efficiency.
Description
Technical field
The utility model relates to a kind of sound power level test fixture.
Background technology
At present hemisphere method sound power level test fixture complicated structure is mainly in all sorts of ways simultaneously ten or 20 point positions to be fixed on machine frame simultaneously, and the sound pressure level that completes all measuring points with this gathers.Although this frock meets sound power level test, also has several problems:
The frock of 1, simultaneously fixing measuring point need to be pre-installed ten or 20 microphones, also needs to dismantle microphone after having surveyed, and spends a large amount of time, and testing efficiency is low;
2, this frock is fixing test radius, can only carry out sound power level test for formulating the sound source of physical dimension, and limitation is larger, can test products scope little.
Utility model content
The utility model aims to provide a kind of simple in structure and sound power level test fixture that testing efficiency is high.
To achieve these goals, the utility model provides a kind of sound power level test fixture, comprising: support bar; Arc section, is positioned at perpendicular and its one end rotatably removably connects with support bar, and on arc section, compartment of terrain is provided with multiple microphone clips.
Further, also comprise: adjustable pipe, be movably arranged on support bar, one end of arc section rotatably removably connects with adjustable pipe around vertical-rotation-axis.
Further, arc section is 1/4 arc section.
Further, microphone clip is 4 and arranges evenly and at intervals.
Further, support bar is connected with adjustable pipe by the first web member, the first web member has: the first through hole, the first web member can be set on support bar along the bearing of trend of support bar movably by the first through hole, the first through hole radially there is the first fixed via so that the first web member is fixed on support bar.
Further, the first web member also has: the second through hole, the first web member can be set on adjustable pipe along the bearing of trend of adjustable pipe movably by the second through hole, the second through hole radially there is the second fixed via, wherein, the first fixed via is communicated with the first through hole and the second through hole and coaxially arranges with the second fixed via.
Further, the axis of the first through hole is mutually vertical with the axis of the second through hole.
Further, support bar and adjustable pipe vertical setting mutually.
Further, the xsect of adjustable pipe is square.
Further, also comprise the second web member, rotating being arranged in adjustable pipe, the second web member has: third through-hole, one end of arc section is arranged in third through-hole, and two the 3rd fixed vias radially with relatively coaxial setting of third through-hole are to fix arc section.
Further, the second web member also has: two the 4th fixed vias, be located on the sidewall of the second web member and relatively coaxially arrange that along the radial direction of the second web member the second web member is fixed on adjustable pipe, wherein, one end of adjustable pipe is between one end and the 4th fixed via of arc section.
Application the technical solution of the utility model, sound power level test fixture comprises support bar and arc section.Arc section is positioned at perpendicular and its one end rotatably removably connects with support bar, and on arc section, compartment of terrain is provided with multiple microphone clips.Because arc section is removably connected with support bar, therefore can change testing radius, improve testing efficiency.Simple in structure, be convenient to install and dismounting.Therefore sound power level test fixture of the present utility model is simple in structure and testing efficiency is high.
Brief description of the drawings
The Figure of description that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the front view of the first embodiment of sound power level test fixture of the present utility model;
Fig. 2 shows the front view of the second embodiment of sound power level test fixture of the present utility model;
Fig. 3 shows the left view of Fig. 2;
Fig. 4 shows the three-dimensional structure diagram of microphone clip of the present utility model;
Fig. 5 shows the three-dimensional structure diagram of the first web member of the present utility model;
Fig. 6 shows the three-dimensional structure diagram of the second web member of the present utility model; And
Fig. 7 shows the enlarged drawing of one end of adjustable pipe of the present utility model.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
As shown in Figure 1, the utility model provides a kind of sound power level test fixture.Particularly, this sound power level test fixture comprises support bar 10 and arc section 30.Arc section 30 is positioned at perpendicular, and one end of arc section 30 is rotatably connected with support bar 10.For ease of changing the arc section 30 of different radii, arc section 30 removably connects with support bar 10.On arc section 30, compartment of terrain is provided with multiple microphone clips 40, the microphone that microphone clip 40 is used for fixing test.
Because arc section 30 is removably connected with support bar 10, therefore can change arc section 30 and then the change testing radius of different radii, applied widely, improve testing efficiency.Such project organization is simple, reduces frock and takes up room, and is also convenient to install and dismounting.
As shown in Figure 2, adjustable pipe 20 is movably arranged on support bar 10, for regulating the height of adjustable pipe 20 and the end of adjustable pipe 20 length apart from support bar 10.One end of arc section 30 rotatably removably connects with adjustable pipe 20 around vertical-rotation-axis.
As shown in Figure 1, sound power level test fixture also has base 70, and base 70 is arranged on the bottom of support bar 10, plays the effect of support and firm whole sound power level test fixture.
As shown in Figure 1, preferably, arc section 30 is 1/4 arc section.1/4 arc section is manufactured easy, cost-saving, good test effect.And 1/4 arc section revolves to turn around and is a semicircle, meets test request, simultaneously owing to being that arc section is also convenient to the slip of microphone clip 40 in test process.
As shown in Figure 3, microphone clip 40 comprises the connecting portion 41 at microphone clip main body and microphone clip main body two ends, and connecting portion 41 has circular hole, has two fixed vias of coaxial setting on the sidewall of circular hole.Wherein, a circle hole sleeve of microphone clip 40 is located on arc section 30, and by fixed via, microphone clip 40 is fixed on arc section 30.Another circular hole and the fixed via of microphone clip 40 are used for being connected and fixed microphone.
Preferably, microphone clip 40 is 4 and is arranged on evenly and at intervals on arc section 40.The sound power level test fixture that provides in the present embodiment a kind of single only to fix 4 microphones, needn't arrange that more microphone can carry out whole tests, has improved testing efficiency again.
As shown in Figure 1, support bar 10 is connected with adjustable pipe 20 by the first web member 50.The effect of the first web member 50 is to realize frock can regulate the height of adjustable pipe 20 and the end length apart from support bar 10.
As shown in Figure 4, the first web member 50 has the first through hole 51, the first web member 50 can be set on support bar 10 along the bearing of trend of support bar 10 movably by the first through hole 51, the first through hole 51 radially there is the first fixed via 52 so that the first web member 50 is fixed on support bar 10.The first web member 50 also has the second through hole 53, the first web member 50 can be set on adjustable pipe 20 along the bearing of trend of adjustable pipe 20 movably by the second through hole 53, the second through hole 53 radially there is the second fixed via 54, wherein, the first fixed via 52 is communicated with the first through hole 51 and the second through hole 53 and coaxially arranges with the second fixed via 54.In the present embodiment, the first through hole 51 is circular hole, and the second through hole 53 is square hole.
As shown in Figure 4, preferably, the axis of the first through hole 51 is mutually vertical with the axis of the second through hole 53, makes support bar 10 and the mutual vertical setting of adjustable pipe 20.What support bar 10 was vertical is arranged on workplace, workplace is surface level, or support bar 10 is arranged on the base 70 being placed on workplace vertically, adjustable pipe 20 is perpendicular to support bar 10, so adjustable pipe 20 all the time with surface level keeping parallelism, ensured the degree of accuracy of whole device to test position.
Preferably, the xsect of adjustable pipe 20 is square.
As shown in Figure 5, sound power level test fixture also comprises the second web member 60, and preferably, the second web member 60 forms the vertical-rotation-axis of arc section 30 around its rotation, and the second web member 60 is vertical turning axle.The second web member 60 is rotating to be arranged in adjustable pipe 20, the second web member 60 has third through-hole 61, one end of arc section 30 is arranged in third through-hole 61, and two the 3rd fixed vias 62 radially with relatively coaxial setting of third through-hole 61 are to fix arc section 30.The second web member 60 also has two the 4th fixed vias 63, be located on the sidewall of the second web member 60 and relatively coaxially arrange that along the radial direction of the second web member 60 the second web member 60 is fixed on adjustable pipe 20, wherein, one end of adjustable pipe 20 is between one end and the 4th fixed via 63 of arc section 30.The rotation of the second web member 60 in the present embodiment drives the rotation of arc section 30, to carry out the test of different angles.
As shown in Figure 6, one end that the second web member 60 is set at adjustable pipe 20 is that connecting hole 21, the second web members 60 that offer coaxial setting on upper and lower two surfaces are located in connecting hole 21, and adjustable pipe 20 is exposed at two ends.The other end that one end of the second web member 60 is used for being connected and fixed arc section 30, the second web members 60 is for being fixed on adjustable pipe 20 by the second web member 60.The connecting hole 21 of the upper surface of adjustable pipe 20 has goes up outstanding serration portion mutually.Wherein depressed part provides spatial accommodation for the small column by the 4th fixed via 63 or bolt.
Some through holes that play fixation in above-described embodiment can be screw, and available bolt penetrates to play the effect of retaining element.And in the not used time of this frock, only the bolt between fixing each parts need be unscrewed, each parts are simply removed, each parts are all the own small volumes of linear different in size, take up room very little when each parts are put together.
A preferred embodiment of the present utility model is specific as follows:
Support bar 10 and the mutual vertical setting of adjustable pipe 20, move adjustable pipe 20 along the bearing of trend of support bar 10, and the height of adjustable whole test fixture highly must be greater than the arc radius of 1/4 arc section, prevents that 1/4 arc section from mopping floor, and is convenient to 1/4 arc section rotation.Move adjustable pipe 20 along the bearing of trend of adjustable pipe 20, that one end that left part of controllable adjustable pipe 20 connects the adjustable pipe 20 of arc section 30 is the horizontal length of round bar to support bar 10, this length must be greater than the arc radius of 1/4 arc section, be convenient to 1/4 arc section rotation, avoid 1/4 arc section supported bar 10 in the process of rotation to stop, adjustable pipe 20 is connected by the second web member 60 with arc section 30.The end that 1/4 circular arc is for example rotated to double-screw bolt and adjustable pipe 20 by the second web member 60 links together, and due to assembling and gravity reason, 1/4 arc section is on vertical guide.Meanwhile, on 1/4 circular arc, four diverse locations load onto 4 microphone clips 40 apart from four differing heights of same level, and so far whole frock has been assembled.Can start to test, can drive arc section 30 to rotate together by rotating the second web member 60, make the projection on the ground of 1/4 arc section respectively in 60 °, 120 °, 180 °, 240 °, 300 °, 360 ° six positions, be the sound pressure level that the microphone of 4 diverse locations and six position of rotation of 1/4 arc section can collect 4*6=24 measuring point by the measuring point of 4 differing heights above 1/4 arc section, so far sound pressure level collecting work completes, the remaining just digital computation of sound power level.In addition, if need to test the different sound source of apparent size time, only need to change 1/4 circular arc of different radii, according to above-mentioned method of testing operation.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
Because arc section is removably connected with support bar, therefore can change testing radius, improve testing efficiency.Simple in structure, be convenient to install and dismounting.Therefore sound power level test fixture of the present utility model is simple in structure and testing efficiency is high.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (11)
1. a sound power level test fixture, is characterized in that, comprising:
Support bar (10);
Arc section (30), is positioned at perpendicular and its one end and rotatably removably connects with described support bar (10), and the upper compartment of terrain of described arc section (30) is provided with multiple microphone clips (40).
2. sound power level test fixture according to claim 1, is characterized in that, also comprises:
Adjustable pipe (20), is movably arranged on described support bar (10) upper, and one end of described arc section (30) rotatably removably connects with described adjustable pipe (20) around vertical-rotation-axis.
3. sound power level test fixture according to claim 1, is characterized in that, described arc section (30) is 1/4 arc section.
4. according to the sound power level test fixture described in claim 1 or 2 or 3, it is characterized in that, described microphone clip (40) is 4 and arranges evenly and at intervals.
5. sound power level test fixture according to claim 2, it is characterized in that, described support bar (10) is connected with described adjustable pipe (20) by the first web member (50), and described the first web member (50) has:
The first through hole (51), it is upper that described the first web member (50) can be set in described support bar (10) along the bearing of trend of described support bar (10) movably by described the first through hole (51), described the first through hole (51) radially there is the first fixed via (52) so that described the first web member (50) is fixed on described support bar (10).
6. sound power level test fixture according to claim 5, is characterized in that, described the first web member (50) also has:
The second through hole (53), described the first web member (50) can be set on described adjustable pipe (20) along the bearing of trend of described adjustable pipe (20) movably by described the second through hole (53), described the second through hole (53) radially there is the second fixed via (54), wherein, described the first fixed via (52) is communicated with described the first through hole (51) and described the second through hole (53) and coaxially arranges with described the second fixed via (54).
7. sound power level test fixture according to claim 6, is characterized in that, the axis of described the first through hole (51) is mutually vertical with the axis of described the second through hole (53).
8. sound power level test fixture according to claim 2, is characterized in that, described support bar (10) and described adjustable pipe (20) vertical setting mutually.
9. sound power level test fixture according to claim 2, is characterized in that, the xsect of described adjustable pipe (20) is square.
10. sound power level test fixture according to claim 2, is characterized in that, also comprises the second web member (60), rotating being arranged in described adjustable pipe (20), and described the second web member (60) has:
Third through-hole (61), one end of described arc section (30) is arranged in described third through-hole (61), and two the 3rd fixed vias (62) radially with relatively coaxial setting of described third through-hole (61) are to fix described arc section (30).
11. sound power level test fixtures according to claim 10, is characterized in that, described the second web member (60) also has:
Two the 4th fixed vias (63), be located on the sidewall of described the second web member (60) and relatively coaxially arrange that along the radial direction of described the second web member (60) described the second web member (60) is fixed on described adjustable pipe (20), wherein, one end of described adjustable pipe (20) is positioned between one end and described the 4th fixed via (63) of described arc section (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420244653.XU CN203824644U (en) | 2014-05-13 | 2014-05-13 | Sound power level testing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420244653.XU CN203824644U (en) | 2014-05-13 | 2014-05-13 | Sound power level testing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203824644U true CN203824644U (en) | 2014-09-10 |
Family
ID=51480129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420244653.XU Expired - Fee Related CN203824644U (en) | 2014-05-13 | 2014-05-13 | Sound power level testing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203824644U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776911A (en) * | 2015-04-24 | 2015-07-15 | 无锡吉兴汽车声学部件科技有限公司 | Microphone fixing device for saloon car exterior tire noise testing |
| CN105092020A (en) * | 2014-05-13 | 2015-11-25 | 珠海格力电器股份有限公司 | Sound power level test tool |
-
2014
- 2014-05-13 CN CN201420244653.XU patent/CN203824644U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092020A (en) * | 2014-05-13 | 2015-11-25 | 珠海格力电器股份有限公司 | Sound power level test tool |
| CN105092020B (en) * | 2014-05-13 | 2017-12-15 | 珠海格力电器股份有限公司 | Acoustic power level test fixture |
| CN104776911A (en) * | 2015-04-24 | 2015-07-15 | 无锡吉兴汽车声学部件科技有限公司 | Microphone fixing device for saloon car exterior tire noise testing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105562780A (en) | Portable inclined hole drilling device | |
| CN203824644U (en) | Sound power level testing tool | |
| CN203437878U (en) | Stud welding fixture capable of being positioned through turning | |
| CN206349713U (en) | A kind of cable run platform | |
| CN105387889B (en) | A kind of bearing detecting device of detection level and hardness | |
| CN105092020A (en) | Sound power level test tool | |
| CN205129455U (en) | A section of thick bamboo type parts machining anchor clamps | |
| CN106382901A (en) | Measuring tool and measuring method | |
| CN202963552U (en) | Angle-adjustable inclined hole drilling clamp | |
| CN106385659B (en) | Microphone clamp | |
| CN109569764A (en) | A kind of Bioexperiment rack for test tube | |
| CN202927406U (en) | Displayer fixing structure | |
| CN103673945B (en) | A kind of harmonic speed reducer output shaft loads jumps measuring apparatus with end | |
| CN205437872U (en) | Control rod car adds clamping apparatus | |
| CN203901260U (en) | Instrument desk fixing device | |
| CN208254756U (en) | A kind of reliability test universal fixturing | |
| CN208262645U (en) | One kind being convenient for metal plate processing positioning fixture | |
| CN103364216B (en) | A kind of fan oscillation tester | |
| CN207964054U (en) | Novel quality inspection balance unit | |
| CN206876070U (en) | Measured material | |
| CN201632804U (en) | Arbitrary-angle rotary working table of welding equipment | |
| CN105772805A (en) | Electric drill positioning device | |
| CN206757968U (en) | A kind of single pendulum ball experiment instrument | |
| CN203869810U (en) | Static balance measuring device | |
| CN206131913U (en) | Utensil is examined to special pinhole hole site position degree of planet carrier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20210513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |