CN207395890U - Noise measuring frame - Google Patents
Noise measuring frame Download PDFInfo
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- CN207395890U CN207395890U CN201721353153.XU CN201721353153U CN207395890U CN 207395890 U CN207395890 U CN 207395890U CN 201721353153 U CN201721353153 U CN 201721353153U CN 207395890 U CN207395890 U CN 207395890U
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- noise measuring
- fixed seat
- connecting pole
- measuring frame
- mounting bar
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Abstract
The utility model discloses a kind of noise measuring framves, it is intended to solve the problems, such as that noise measuring process is excessively time-consuming and laborious.Its key points of the technical solution are that：A kind of noise measuring frame, fixed seat including being arranged at noise measuring room ceiling, the stent with the connecting pole of fixed seat rotation connection and with connecting pole socket, the stent bottom is provided with arc mounting bar of the intrados under, there are two the clamping parts for being used for fixed capacity microphone for the arc mounting bar setting, for retaining part described in one immediately below connecting pole, the vertical range of two clamping parts is equal to the radius of arc mounting bar.A kind of noise measuring frame of the utility model, by the way that two capacitance microphones are fixed on an arc strip, a semicircle track is marked during this arc strip rotates, so as to complete the sampling to five point position noises of detected material, to solve the problems, such as that noise measuring is time-consuming and laborious.
Description
Technical field
The utility model is related to testing equipment field, more specifically, it relates to a kind of noise measuring frame.
Background technology
With the continuous progress of China's mechanization process, corresponding mark has also been put into effect for the indices of mechanical equipment
Standard, in national standard《The mark of GB/T14574-2000 acoustics machine and equipment noise emission values and verification》In set for machinery
Standby noise measuring gives specific detection method.
To adapt to the requirement of industries standardization, mechanical equipment is after completing to produce, it is necessary to be taken out to the equipment of same batch
Sample detects；Traditional detection mode needs a kind of noise measuring announced using the Chinese patent such as notification number CN206192494U
Instrument is detected equipment, and testing staff is needed to carry noise measuring instrument during detection and is examined at least five point position
It surveys, as shown in Figure 1, No. 1 point position, No. 2 point positions, No. 3 point positions, No. 4 point positions（More than the i.e. tested measurement equipment surrounding 1- in four point positions
At 1.2 meters）, No. 5 point positions（Directly over i.e. tested measurement equipment at 1-1.2 meters）.
Above-mentioned detection mode possible defect in the detection to a small amount of sample is not obvious, but larger to radix
During sample is detected, then the defects of its is time-consuming and laborious is substantially exposed.
Therefore need to propose a kind of new scheme to solve the problems, such as this.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of noise measuring frame, pass through by
Two capacitance microphones are fixed on an arc strip, and a semicircle track is marked during this arc strip rotates, from
And the sampling to five point position noises of detected material is completed, to solve the problems, such as that noise measuring is time-consuming and laborious.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of noise measuring frame,
Including be arranged at noise measuring room ceiling fixed seat, with fixed seat rotation connection connecting pole and with connecting pole socket
Stent, the stent bottom are provided with arc mounting bar of the intrados under, and there are two be used for for the arc mounting bar setting
The clamping part of fixed capacity microphone, retaining part described in one immediately below the connecting pole, two clamping parts it is vertical away from
From the radius equal to arc mounting bar.
By using above-mentioned technical proposal, when carrying out noise measuring to being examined equipment, examined equipment is positioned over
Precalculated position starts detection device, from fixed seat by rotating arc mounting bar, arc mounting bar with connecting pole and stent
During rotation, a semicircular track is marked, the capacitance microphone on arc mounting bar is fixed on by clamping part
With the rotation of arc mounting bar, the noise samples for being detected five point positions of measurement equipment are completed, testing staff are avoided to need continuous
The problem of mobile detection apparatus so that noise measuring is easier.
The utility model is further arranged to：Fixed seat top edge is provided with protruding portion, and the protruding portion is set
There is fixing piece, the fixing piece is secured by bolts in noise measuring room ceiling.
It, need not be in use, testing stand can be torn open by unscrewing bolt in testing stand by using above-mentioned technical proposal
Storage is unloaded, to prevent from hanging on ceiling for a long time, generating dust accumulation etc. influences its performance.
The utility model is further arranged to：The connecting pole is rotationally connected with fixed seat following table by being provided with bearing
Face.
By using above-mentioned technical proposal, bearing is set between connecting pole and fixed seat, so as to fulfill connecting pole and admittedly
Rotation connection between reservation, simultaneously because bearing has the small characteristic of frictional force so that when Rotational Cylindrical is relatively fixed seat rotation
The interfering noise of generation is smaller.
The utility model is further arranged to：The fixed seat is the internal housing with cavity, and the connecting pole passes through
Fixed seat lower wall surface end is provided with driven gear, and motor is provided in the fixed seat cavity, and the motor output shaft is provided with
The driving gear engaged with driven gear.
By using above-mentioned technical proposal, motor drives driving gear to rotate, and driving gear coordinates with driven gear, rotates
Motor and gear set are arranged in the cavity of fixed seat so as to swinging mounting, reduce motor and gear set operating by connecting pole
When noise outflow amount, reduce influence of the interfering noise for detection.
The utility model is further arranged to：The fixed seat outside wall surface is provided with puigging.
By using above-mentioned technical proposal, effectively interfering noise is isolated from fixed seat, is reduced in detection process
It is disturbed degree.
The utility model is further arranged to：The stent includes the sleeve being socketed with connecting pole and is symmetrically fixedly connected
Strut in its circumference face, two strut midpoints have been fixedly connected with bracing piece, two described bracing piece one end phases
Mutually it is fixedly connected.
By using above-mentioned technical proposal, strut in its circumference face is set for fixing arc mounting bar, and sets and adds
Strong bar is used for the structural strength of reinforced support.
The utility model is further arranged to：The connecting pole sets gradually several pin holes, the set along its length
Cylinder sliding is connected with the bolt with pin hole cooperation.
By using above-mentioned technical proposal, in the detected material detection for different height, bolt can be extracted, and will
After sleeve is moved to proper height, bolt fixes sleeve is inserted into, so as to promote the adaptability of the testing stand.
The utility model is further arranged to：The bolt is T-shaped cylinder, and both ends are respectively plug division and pin cap
Portion, the pin cap portion are provided with elastic component, and the elastic component is fixedly connected with sleeve outer wall face.
By using above-mentioned technical proposal, it is on the one hand to after decontroling bolt, bolt can be subject to the elasticity of elastic component
It is automatically inserted into pin hole so that regulating sleeve height is more convenient, is on the other hand the improper de- of bolt in order to prevent
From stent is caused to drop something unexpected happened.
The utility model is further arranged to：There are one inclined surface upward and a levels directed downwardly for the plug division tool
Face.
By using above-mentioned technical proposal so that when rising sleeve height, it is only necessary to stent is up promoted, so as to
Reach regulating sleeve height more easily technique effect.
The utility model is further arranged to：The interconnection end of two bracing pieces is provided with the first buckle, one
The strut bottom is provided with the second buckle, and the arc mounting bar is respectively arranged with what is be clasped with the first buckle and second
Clamping portion.
By using above-mentioned technical proposal, be in order to realize the design for disassembly of arc mounting bar, when installing testing stand,
Various components can be installed on ceiling respectively, mounting means in this way reduces installation difficulty, if entire inspection
Test aircraft is an entirety, and weight certainly will be larger, and testing stand needs to be mounted on higher ceiling, by the shadow of its weight
It rings during being raised, inevitably generates larger trouble.
In conclusion the utility model has the advantages that：
By the way that two capacitance microphones are installed on arc mounting bar, arc mounting bar passes through holder pivots by connecting pole
During, a hemispherical is marked, during capacitance microphone is with rotating with it, completes to adopt for the noise of five point positions
Sample, so as to which testing staff be avoided to need repeatedly to replace noise measuring instrument, and the trouble brought.
Description of the drawings
Fig. 1 is the schematic diagram of prior art noise measuring mode；
Fig. 2 is the overall structure figure of the utility model, the main overall structure for representing testing stand；
Fig. 3 is the phantom of the utility model, the main overall structure for representing fixed seat；
Fig. 4 is the A portions enlarged diagram of Fig. 3, the main internal structure for representing fixed seat；
Fig. 5 is the overall structure figure of the utility model bolt, the main overall structure for representing bolt；
Fig. 6 is the overall structure figure of the utility model clamping part and buckle, the overall structure of both main expressions；
Fig. 7 is the overall structure figure of the utility model arc mounting bar, the main entirety for representing testing stand arc mounting bar
Structure.
In figure：1st, fixed seat；11st, connecting pole；12nd, protruding portion；13rd, fixing piece；14th, bearing；16th, driven gear；17th, it is electric
Machine；18th, driving gear；19th, puigging；2nd, stent；21st, arc mounting bar；22nd, clamping part；221st, clamping plate；222nd, torsional spring；23、
Sleeve；24th, strut；25th, bracing piece；26th, pin hole；27th, bolt；271st, plug division；272nd, cap portion is sold；28th, elastic component；29、
First buckle；292nd, the second buckle.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
Noise measuring frame, as shown in Fig. 2, including be arranged at noise measuring room ceiling fixed seat 1, with 1 turn of fixed seat
The connecting pole 11 of dynamic connection and the stent 2 being socketed with connecting pole 11, wherein 2 bottom of stent is provided with arc of the intrados under
Shape mounting bar 21, arc mounting bar 21 are quadrant arc metal cartridge, and arc mounting bar 21 sets solid there are two being used for
Determine the clamping part 22 of capacitance microphone, referring to Fig. 6, clamping part 22 includes two pieces of clamping plates 221 being hinged, and hinge lines are set
There is torsional spring 222, return to Fig. 2, one of clamping part 22 is located at immediately below connecting pole 11, vertical range of two clamping parts 22 etc.
In the radius of arc mounting bar 21, so as to which when tested measurement equipment is positioned over precalculated position, two clamping parts 22 are located at it respectively
Surface and a side；When carrying out noise measuring to being examined equipment, examined equipment is positioned over precalculated position, is started
Detection device is being turned from fixed seat 1 by rotating arc mounting bar 21, arc mounting bar 21 with connecting pole 11 and stent 2
In dynamic process, a hemispheric track is marked, the capacitance microphone on arc mounting bar 21 is fixed on by clamping part 22
With the rotation of arc mounting bar 21, the noise samples for being detected five point positions of measurement equipment are completed, so as to which testing staff be avoided to need
Otherwise the problem of disconnected mobile detection apparatus so that noise measuring is easier.
For testing stand is avoided to hang on for a long time on ceiling, generating a large amount of dust accretions influences its service life, such as Fig. 4
Shown, 1 top edge of fixed seat is provided with protruding portion 12, and protruding portion 12 is provided with fixing piece 13, and fixing piece 13 is solid to be socketed on
In reservation 1 and its upper surface fits in the sheet metal of protruding portion 12, and fixing piece 13 is secured by bolts in noise measuring room smallpox
It, so as to fulfill the detachable installation of testing stand, can disassembled and protected from ceiling by plate in the case of
It deposits.
To realize that connecting pole 11 is rotationally connected with 1 lower surface of fixed seat, as shown in Figure 3, Figure 4, connecting pole 11 is provided with axis
14 are held, 14 inner circle of bearing is fixed with connecting pole 11, and outer circle is fixed with fixed seat 1, so as to realize connecting pole 11 and fixed seat 1
While rotation connection, the characteristic that make use of 14 frictional force of bearing small effectively reduces frictional force, to reduce because being produced during frictional force
Raw interfering noise；While rotation to be drivingly connected column 11, the interfering noise of outflow is reduced as much as possible, fixed seat 1 is interior
Portion has the housing of cavity, and sets puigging 19 in its outside wall surface, and puigging 19 can be deadening felt, and connecting pole 11 is through admittedly
1 lower wall surface end of reservation is provided with driven gear 16, is provided with motor 17 in 1 cavity of fixed seat, 17 output shaft of motor be provided with
The driving gear 18 that driven gear 16 engages；Motor 17 drives driving gear 18 to rotate, and driving gear 18 is matched somebody with somebody with driven gear 16
It closes drive connection column 11 to rotate, motor 17 and gear set is arranged in the cavity of fixed seat 1, and is set in 1 outside wall surface of fixed seat
Puigging 19 is put, so as to be effectively isolated the noise due to being drivingly connected column 11 and generating, drops to the influence to detection.
To enhance the structural strength of stent 2, Fig. 1 is returned to, stent 2 is including the sleeve 23 with the socket of connecting pole 11 and symmetrically
The strut 24 of 23 periphery of sleeve is fixedly connected on, wherein two 24 midpoints of strut have been fixedly connected with bracing piece 25, two
Described 25 one end of bracing piece is mutually permanently connected；To improve the adaptability of testing stand, as shown in Figure 2 and Figure 3, connecting pole 11 is along length
Degree direction sets gradually several pin holes 26, and sleeve 23 slides the bolt 27 for being connected with and coordinating with pin hole 26, for difference
During the detected material detection of height, bolt 27 can be extracted, and after sleeve 23 is moved to proper height, insertion bolt 27 is fixed
Sleeve 23, so as to adjust the height of arc mounting bar 21, to adapt to the detected material of different height；For adjustment sleeve 23 more just
Victory, as shown in Fig. 2, Fig. 3, Fig. 5, bolt 27 is T-shaped cylinder, and both ends are respectively plug division 271 and pin cap portion 272, are sold
Cap portion 272 is provided with elastic component 28, and elastic component 28 can be compression spring, and is fixedly connected with 23 outside wall surface of sleeve, elastic component
28 in the raw under, plug division 271 is inserted in one pin hole 26, is on the one hand to cover by above-mentioned design
After cylinder 23 is moved to predetermined altitude, bolt 27 can be subject to the pulling force of elastic component 28 to be automatically inserted into pin hole after decontroling bolt 27
In 26 so that 23 height of regulating sleeve is more convenient, is on the other hand for the pulling force by elastic component 28 for bolt 27, prevents
The only improper disengaging of bolt 27 causes stent 2 to drop something unexpected happened；To further improve the convenient of adjustment sleeve 23
Property, referring to Fig. 5, the tool of plug division 271 is there are one inclined surface upward and a face directed downwardly, and the angle in inclined surface and face is
45 °, when raising 23 height of sleeve, return to Fig. 1, it is only necessary to stent 2 is up promoted, so as to reach 23 height of regulating sleeve
More easily technique effect.
More convenient for disassembly and installation testing stand, as shown in Fig. 2, Fig. 7, the interconnection end of two bracing pieces 25 is set
There is the first buckle 29,24 bottom of one strut is provided with the second buckle 291,（Referring to Fig. 6, the first buckle 29 and the second buckle 291
Structure it is identical with clamping part structure）So as to which testing stand is split as three components（That is fixed seat 1, stent 2 and arc installation
Item 21）, when installing testing stand, first fixed seat 1 is fixed on the ceiling of noise measuring room, passes through 23 company of being socketed on of sleeve
It connects with connecting bracket 2 on column 11, it is fixed finally by the cooperation of the first buckle 29 and the second buckle 291 and two clamping portions 292
Arc mounting bar 21 is in 2 bottom of stent, so as to reduce the difficulty of installation and removal by way of assembly and disassembly successively；If
Entire testing stand is an entirety, and weight certainly will be larger, and testing stand needs to be mounted on higher ceiling, heavy by its
The influence of amount inevitably generates larger trouble during being raised.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical solutions belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, several improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of noise measuring frame, it is characterised in that：Fixed seat including being arranged at noise measuring room ceiling（1）It is and fixed
Seat（1）The connecting pole of rotation connection（11）And and connecting pole（11）The stent of socket（2）, the stent（2）Bottom is provided with
Arc mounting bar of the intrados under（21）, the arc mounting bar（21）For fixed capacity microphone there are two setting
Clamping part（22）, clamping part described in one（22）Positioned at connecting pole（11）Underface, two clamping parts（22）It is vertical away from
From equal to arc mounting bar（21）Radius.
2. noise measuring frame according to claim 1, it is characterised in that：The fixed seat（1）Top edge is provided with prominent
Go out portion（12）, the protruding portion（12）It is provided with fixing piece（13）, the fixing piece（13）It is secured by bolts in noise measuring
Room ceiling.
3. noise measuring frame according to claim 1, it is characterised in that：The connecting pole（11）By being provided with bearing
（14）It is rotationally connected with fixed seat（1）Lower surface.
4. noise measuring frame according to claim 3, it is characterised in that：The fixed seat（1）There is cavity for inside
Housing, the connecting pole（11）Through fixed seat（1）Lower wall surface end is provided with driven gear（16）, the fixed seat（1）Cavity
Inside it is provided with motor（17）, the motor（17）Output shaft is provided with and driven gear（16）The driving gear of engagement（18）.
5. noise measuring frame according to claim 4, it is characterised in that：The fixed seat（1）Outside wall surface is provided with sound insulation
Layer（19）.
6. noise measuring frame according to claim 1, it is characterised in that：The stent（2）Including with connecting pole（11）Set
The sleeve connect（23）And symmetrically it is fixedly connected on sleeve（23）The strut of periphery（24）, two struts（24）Midpoint
It has been fixedly connected with bracing piece（25）, two bracing pieces（25）One end is mutually permanently connected.
7. noise measuring frame according to claim 6, it is characterised in that：The connecting pole（11）It sets successively along its length
Put several pin holes（26）, the sleeve（23）Sliding is connected with and pin hole（26）The bolt of cooperation（27）.
8. noise measuring frame according to claim 7, it is characterised in that：The bolt（27）For T-shaped cylinder, both ends
Respectively plug division（271）And pin cap portion（272）, the pin cap portion（272）It is provided with elastic component（28）, the elastic component
（28）With sleeve（23）Outside wall surface is fixedly connected.
9. noise measuring frame according to claim 8, it is characterised in that：The plug division（271）There are one tools upward
Inclined surface and a horizontal plane directed downwardly.
10. noise measuring frame according to claim 6, it is characterised in that：Two bracing pieces（25）Interconnection
End is provided with the first buckle（29）, strut described in one（24）Bottom is provided with the second buckle（291）, the arc mounting bar
（21）It is respectively arranged with and the first buckle（29）With the second buckle（291）The clamping portion of cooperation（292）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721353153.XU CN207395890U (en) | 2017-10-19 | 2017-10-19 | Noise measuring frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721353153.XU CN207395890U (en) | 2017-10-19 | 2017-10-19 | Noise measuring frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207395890U true CN207395890U (en) | 2018-05-22 |
Family
ID=62329030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721353153.XU Active CN207395890U (en) | 2017-10-19 | 2017-10-19 | Noise measuring frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207395890U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987168A (en) * | 2019-12-20 | 2020-04-10 | 中海外交通建设有限公司 | House construction ground noise detection device convenient to installation |
| CN111947930A (en) * | 2020-07-29 | 2020-11-17 | 东风商用车有限公司 | Noise sensor suspension support structure |
-
2017
- 2017-10-19 CN CN201721353153.XU patent/CN207395890U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987168A (en) * | 2019-12-20 | 2020-04-10 | 中海外交通建设有限公司 | House construction ground noise detection device convenient to installation |
| CN111947930A (en) * | 2020-07-29 | 2020-11-17 | 东风商用车有限公司 | Noise sensor suspension support structure |
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