CN207231626U - A kind of test system of sound proof box and the application sound proof box - Google Patents

Abstract

The utility model discloses the test system of a kind of sound proof box and the application sound proof box; wherein; sound proof box has multiplet; internal box is two layers of acoustic material; effectively increase the signal-to-noise ratio of monitoring signals; and sound proof box described in the utility model mainly protects detection site from the influence of ambient noise, and whole detected pieces are not moved into sound proof box, suitable for various sizes of detected pieces；Meanwhile the test system with the sound proof box can avoid the secondary destruction to detected pieces using the physics fixed form fixed signal collector of " compression type ".The utility model is simple in structure, easy to operate, and versatility and repeatability are stronger.

Description

A kind of test system of sound proof box and the application sound proof box

Technical field

The utility model is related to acoustical signal technical field of nondestructive testing, and in particular to a kind of sound proof box and apply the sound proof box Test system.

Background technology

As the continuous renewal of acoustical signal non-destructive detecting device and transducer sensitivity are higher and higher, can detect more Add faint acoustical signal.The problem of being disturbed accordingly, with respect to ambient noise useful signal becomes more and more prominent, especially cavity Influence of the noise to useful signal, becomes one of factor that can not ignore in detection process.

The process of acoustical signal non-destructive testing needs to carry out in the environment influenced from external noise condition, optimal solution Certainly scheme be establish one can thorough isolated environment noise soundproof room.But soundproof room is established there are problems, such as：Cost Higher, difficult, and be only capable of being detected the less detected pieces of size.And in practical engineering project, detected pieces sometimes It is bulky, it is impossible to move entirely into soundproof room, be difficult to realize low threshold value, the test of the signal acquisition of high s/n ratio.

Particularly in historical relic's protection field, due to the special value of detected pieces, when carrying out acoustical signal Non-Destructive Testing to it, The whole process of fixed, installation, test and dismounting does not allow to cause detected pieces secondary destruction.

To sum up, there are problems with for existing detection method：

(1) fixed form of sensor.When detection site with respect to the horizontal plane has certain inclination angle or in perpendicular It is more at present that sensor is fixed in detected pieces by the way of daubing coupling agent during straight state.But existing couplant is to non-gold There are the phenomenon oozed under couplant for the detected pieces of category material, it is understood that there may be corrosiveness.Therefore with historical cultural environment In detected pieces, couplant does not allow to use, and just causes being fixed into for problem for sensor；

(2) in test process ambient noise influence.As it was previously stated, not adapt to volume dimensionally big for existing sound proof box Detected pieces, but the continuous renewal of detection device causes become more and more important the problem of how removing ambient noise.

Therefore, how effectively removing ambient noise, fixed sensor and detecting the larger detected pieces of volume becomes at present urgently Problem to be solved.

Utility model content

In order to overcome the above problem, present inventor has performed sharp study, designs a kind of sound proof box, the sound proof box tool There is multiplet, wherein, it is two layers of acoustic material in internal box, for removing ambient noise, improves the signal-to-noise ratio of monitoring signals； And coordinate the clamping device that uses of sound proof box using the physics fixed form fixed signal collector of " compression type ", it can avoid pair The secondary destruction of detected pieces, and clamping device can multi-direction more piece adjust, various sizes of detected pieces are suitable for, so that complete Into the utility model.

Specifically, the purpose of this utility model is to provide following aspect：

(1) a kind of sound proof box, wherein, the sound proof box includes outer case 1 and internal box 2, wherein,

The outer case 1 is hollow structure,

The outer case 1 includes front plate 11, side panel 12 and convex edge 13,

The convex edge 13 is parallel with front plate 11, and the convex edge 13 intersects vertically with side panel 12,

Clamp device 3 is installed in the front plate 11 of the outer case 1,

The internal box 2 is nested in outer case 1,

The internal box 2 is made of acoustic material, including two layers, it is respectively first layer acoustic material 21 and second layer sound insulation Material 22.

(2) sound proof box according to above-mentioned (1), wherein, the outer case 1 is hollow rectangular parallelepiped structure.

(3) sound proof box according to above-mentioned (1), wherein, the first layer acoustic material 21 is fitted in the interior of outer case 1 Surface, the second layer acoustic material 22 are fitted in the outer surface of first layer acoustic material 21,

The clamp device 3 includes multiple fastening units, and the fastening unit is uniformly distributed in front plate 11.

(4) sound proof box according to above-mentioned (1), wherein, the clamp device 3 has helicitic texture.

(5) a kind of test system for carrying above-mentioned (1) to one of (4) sound proof box, it is characterised in that the test system System further includes signal picker, signal receiver and clamping device 4, wherein,

The signal picker is located in the outer case 1 of sound proof box, and the clamping device 4 is installed on the outside of outer case 1,

The clamping device 4 includes telescoping mechanism 41 and clamp system 42, and the clamp system 42 is connected to telescoping mechanism 41 end.

(6) the test system according to above-mentioned (5), wherein,

The telescoping mechanism 41 includes two telescopic arms 411, connects the connecting rod 412 and locating piece 413 of two telescopic arms,

The locating piece 413 is installed on telescopic arm 411.

(7) the test system according to above-mentioned (6), wherein, the telescopic arm 411 includes inner sleeve 4111 and outer tube 4112, the inner sleeve 4111 and outer tube 4112 are clearance fit.

(8) the test system according to above-mentioned (7), wherein, the inner sleeve 4111 and outer tube 4112 are porous Casing.

(9) the test system according to above-mentioned (5) or (6), wherein, the clamp system 42 is connected to telescoping mechanism 41 End,

The clamp system 42 and 411 copline of telescopic arm.

(10) the test system according to above-mentioned (9), wherein,

The clamp system 42 includes supporting rod 421, clamping head 422 and protective head 423, and the clamping head 422 is connected to The end of supporting rod 421.

Beneficial effect includes possessed by the utility model：

(1) sound proof box provided by the utility model, using multiplet, internal box is made of two layers of acoustic material, can be big Amplitude reduces the influence of external high frequency and low-frequency noise to audio signal monitoring result；

(2) sound proof box provided by the utility model, mainly protects the influence from ambient noise to detection site, rather than Whole detected pieces are moved into sound proof box, improve the scope of application of sound proof box；

(3) the test system provided by the utility model using above-mentioned sound proof box, can make sound proof box abundant with detected pieces Clamp, soundproof effect can also be improved to a certain extent, improve the signal-to-noise ratio of monitoring signals；

(4) test system provided by the utility model, the fixed signal collector by the way of clamping, efficiently solves Under some special occasions the corrosion of couplant and under ooze phenomenon, avoid the secondary destruction to detected pieces；

(5) test system provided by the utility model, its clamping device are adjusted with multi-direction more piece, are adapted to difference The detected pieces of size, use scope are more extensive.

Brief description of the drawings

Fig. 1 a show the main structure figure of sound proof box described in the utility model；

Fig. 1 b show the side block diagram of sound proof box described in the utility model；

Fig. 1 c show the overlooking structure figure of sound proof box described in the utility model；

Fig. 2 shows the overall structure figure of sound proof box described in the utility model；

Fig. 3 shows the overall structure figure of test system described in the utility model；

Fig. 4 a show the main structure figure of clamping device described in the utility model；

Fig. 4 b show the side block diagram of clamp system described in the utility model；

Fig. 4 c show the face upwarding assumption diagram of clamp system described in the utility model；

Fig. 5 shows the overall structure figure of clamp system described in the utility model.

Drawing reference numeral explanation：

1- outer cases；

11- front plates；

12- side panels；

121- first side plates；

122- second side plates；

123- third side panels；

124- fourth side panels；

13- convex edges；

2- internal box；

21- first layer acoustic materials；

22- second layer acoustic materials；

3- clamp devices；

4- clamping devices；

41- telescoping mechanisms；

411- telescopic arms；

4111- inner sleeves；

4112- outer tubes；

412- connecting rods；

413- locating pieces；

42- clamp systems；

421- supporting rods；

422- clamping heads；

423- protective heads.

Embodiment

The utility model is further described below by drawings and embodiments.Pass through these explanations, this practicality The characteristics of new and advantage will become more apparent from clearly.Wherein, although the various aspects of embodiment are shown in the drawings, But unless otherwise indicated, it is not necessary to attached drawing drawn to scale.

The utility model provides a kind of sound proof box, and as shown in Fig. 1 a~Fig. 1 c, the sound proof box includes outer case 1, interior Babinet 2 and clamp device 3, wherein, the internal box 2 is nested in the outer case 1, and the clamp device 3 is installed on outer container On body 1.

According to a kind of preferred embodiment of the utility model, the outer case 1 is hollow structure, is preferably hollow length Cube structure, the outer case 1 include front plate 11, side panel 12 and convex edge 13.

Wherein, as shown in Fig. 2, the side panel 12 includes first side plate 121, second side plate 122, third side panel 123 and fourth side panel 124, the first side plate 121 and third side panel 123 are opposite position relationship, second side Plate 122 and fourth side panel 124 are opposite position relationships.First to fourth side panel is end to end, forms the side of cuboid Face structure.

Preferably, circular hole is offered on side panel 12.

Wherein, a circular hole is offered in the first side plate 121 of side panel 12, is mainly used for internal unit (signal Collector) cabling.

In further preferred embodiment, as shown in Fig. 2, the convex edge 13 is parallel with front plate 11, the convex edge 13 intersect vertically with side panel 12.

Wherein, the convex edge 13 is connected on the base of second side plate 122 and fourth side panel 124, and by two sides The base of panel extends to obtain to both sides respectively.

According to a kind of preferred embodiment of the utility model, the outer case 1 is made of metal material, it is preferable that by Aluminium sheet is made.

Wherein, the factor such as density through considering soundproof effect and tank material, it is preferred in the utility model to select 2mm The outer case 1 of sound proof box is made in thick aluminium sheet.

According to a kind of preferred embodiment of the utility model, the internal box 2 is made of acoustic material, including first layer Acoustic material 21 and second layer acoustic material 22, it is preferable that the acoustic material is deadening felt, more preferably full rate sound insulation Felt.

In further preferred embodiment, the first layer acoustic material 21 is fitted in the inner surface of outer case 1, institute State the outer surface that second layer acoustic material 22 is fitted in first layer acoustic material 21.

Wherein, two layers of acoustic material is by the inner surface of gluing mode and outer case and with being fixed to one another one Rise, the combination of the first layer acoustic material 21 and second layer acoustic material 22 can be realized reduce in the range of full frequency band outside Influence of the noise to signal picker in sound proof box, plays the role of improving signal-to-noise ratio.

In addition, two layers of acoustic material is also equipped with the circular hole opened up on above-mentioned side panel 12, to ensure in sound proof box The influence of external noise can be reduced to greatest extent.

According to a kind of preferred embodiment of the utility model, as depicted in figs. 1 and 2, the clamp device 3 is installed on just On panel 11.

Wherein, the clamp device 3 is used to fix the signal picker in sound proof box, helps signal picker and detected pieces Come into full contact with, avoid the signal picker caused by long term monitoring from coming off and influence detection result.

In further preferred embodiment, the clamp device 3 includes multiple fastening units, and the fastening unit exists It is uniformly distributed in front plate 11,

Preferably, the end of the clamp device 3 passes through front plate 11 by the outside of outer case 1, into hollow structure.

In embodiment still more preferably, the clamp device 3 has helicitic texture, is preferably bolt.

Wherein, the end of the clamp device 3 is also provided with acoustic material, is to be contacted to reduce it with signal picker During the influence of the vibration that produces to detection result so that one stabilization of the hollow structure being provided more efficiently in sound proof box Test environment.

Sound proof box provided by the utility model, simple in structure, easy to operate, versatility and repeatability are stronger；Using this The sound proof box that utility model provides carries out acoustical signal processing, can significantly reduce external noise to audio signal monitoring result Influence, and can adapt to the detected pieces of various sizes.

The utility model additionally provides a kind of test system with above-mentioned sound proof box, as shown in figure 3, the test system is also Including signal picker, signal receiver and clamping device 4, wherein, the signal picker is located at the hollow structure of sound proof box It is interior, it is preferably sensor；The signal receiver is used to receive the signal that signal picker collects；The clamping device 4 is used Clamped in by detected pieces and sound proof box outer case 1.

According to a kind of preferred embodiment of the utility model, as shown in Fig. 4 a~Fig. 4 c, Fig. 5, the clamping device 4 wraps Telescoping mechanism 41 and clamp system 42 are included, the telescoping mechanism 41 includes two telescopic arms 411, connects the connection of two telescopic arms Bar 412 and locating piece 413,

The locating piece 413 is installed on telescopic arm 411.

Wherein, two telescopic arms 411 of telescoping mechanism 41 can be received according to the size of detected pieces and detected position Contracting or elongation, to be clamped fixation in most suitable position.

In further preferred embodiment, the telescopic arm 411 includes inner sleeve 4111 and outer tube 4112, described Inner sleeve 4111 and outer tube 4112 are clearance fit.

In embodiment still more preferably, the inner sleeve 4111 and outer tube 4112 are porous casing.

Wherein, during actually detected, inner sleeve and outer tube are adjusted to suitable position by the size according to detected pieces Put, and the hole of internal and external casing is alignd, insertion locating piece is positioned, it can be adapted for various sizes of detected pieces.

Preferably, the inner sleeve 4111 and outer tube 4112 are square porous casing.

Wherein, in order to make what clamping device was more bonded to be contacted with sound proof box and detected pieces, the outer tube and inner sleeve It is shaped to square so that the contact between each device is plane-plane contact.

According to a kind of preferred embodiment of the utility model, the clamp system 42 is connected to the end of telescoping mechanism 41 End, is preferably connected to the end of telescopic arm 411.

In further preferred embodiment, the clamp system 42 and 411 copline of telescopic arm.

In embodiment still more preferably, the clamp system 42 is parallel with the connecting rod 412 of telescoping mechanism 41.

According to a kind of preferred embodiment of the utility model, the clamp system 42 includes supporting rod 421, clamping head 422 and protective head 423,

Preferably, 421 top of supporting rod is connected with rotating handles, and end is inwardly worn from the outside of a telescopic arm Enter.

In further preferred embodiment, clamping head 422 is connected with 421 end of supporting rod.

In embodiment still more preferably, the clamping head 422 is sheet.

Preferably, damping material is installed on the clamping head 422.

Wherein, it is to contact caused vibration to reduce clamp system with detected pieces that damping material is installed on clamping head, So as to further reduce the influence that external environment condition gathers acoustical signal.

Test system provided by the utility model, can by the way of clamping fixed signal collector, can avoid pair The secondary destruction of detected pieces, while the signal-to-noise ratio of monitoring signals can be improved to a certain extent.

Test system provided by the utility model with sound proof box, can follow the steps below acoustical signal processing, Concrete operation step is：

1) signal picker is attached to detected pieces surface, positioning calibration is carried out to sound proof box.

In the utility model, each fastening unit of clamp device 3 on sound proof box is set to be directed at corresponding signal acquisition Device, positioning calibration is carried out to sound proof box.

2) clamp device 3 and clamping device 4 are adjusted so that be in close contact between signal picker, sound proof box and detected pieces.

In the utility model, clamp device 3 is adjusted, its end is against the outer surface of signal picker so that signal Collector is in close contact with sound proof box.

In the utility model, clamping device 4 is adjusted, is bonded two convex edges 13 of its two telescopic arms 411 and sound proof box, And adjust the supporting rod 421 of clamp system 42 so that clamping head 422 is firmly attached to detected pieces and sound proof box with protective head 423 Between.

Wherein, clamping device 4 is placed on to the outside of sound proof box, and suitably adjusts the position of locating piece 413 on telescopic arm, Clamping device 4 is set to carry out clamping operation to sound proof box.

3) audio signal detection is carried out to detected pieces, is received by signal receiver and obtain test result；

4) after testing, loose clamp device 3 and clamping device 4 are adjusted successively, removes clamping device 4, sound proof box and signal Collector.

, it is necessary to explanation, the finger such as term " on ", " under ", " interior ", " outer " " preceding " " rear " in the description of the utility model The orientation or position relationship shown is based on the orientation or position relationship under utility model works state, is for only for ease of description The utility model and simplified description, rather than indicate or imply that signified device or element must be with specific orientation, Yi Te Fixed azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " first ", " second ", " the 3rd ", " the 4th " are only used for description purpose, and it is not intended that instruction or hint relative importance.

The utility model is illustrated above in association with preferred embodiment, but these embodiments are only models Example property, only play the role of illustrative.On this basis, a variety of replacements and improvement can be carried out to the utility model, these Each fall within the scope of protection of the utility model.

Claims (10)

1. A kind of 1. sound proof box, it is characterised in that the sound proof box includes outer case (1) and internal box (2), wherein,

   The outer case (1) is hollow structure,

   The outer case (1) includes front plate (11), side panel (12) and convex edge (13),

   The convex edge (13) is parallel with front plate (11), and the convex edge (13) intersects vertically with side panel (12),

   Clamp device (3) is installed in the front plate (11) of the outer case (1),

   The internal box (2) is nested in outer case (1),

   The internal box (2) is made of acoustic material, including two layers, it is respectively first layer acoustic material (21) and second layer sound insulation Material (22).
2. 2. sound proof box according to claim 1, it is characterised in that the outer case (1) is hollow rectangular parallelepiped structure.
3. 3. sound proof box according to claim 1, it is characterised in that the first layer acoustic material (21) is fitted in outer case (1) inner surface, the second layer acoustic material (22) are fitted in the outer surface of first layer acoustic material (21)；

   The clamp device (3) includes multiple fastening units, and the fastening unit is uniformly distributed in front plate (11).
4. 4. sound proof box according to claim 1, it is characterised in that the clamp device (3) has helicitic texture.
5. 5. a kind of test system with one of the Claims 1-4 sound proof box, it is characterised in that the test system is also Including signal picker, signal receiver and clamping device (4), wherein,

   The signal picker is located in the outer case (1) of sound proof box, and the clamping device (4) is installed on the outer of outer case (1) Side,

   The clamping device (4) includes telescoping mechanism (41) and clamp system (42), and the clamp system (42) is connected to flexible The end of mechanism (41).
6. 6. test system according to claim 5, it is characterised in that

   The telescoping mechanism (41) includes two telescopic arms (411), connects the connecting rod (412) and locating piece of two telescopic arms (413),

   The locating piece (413) is installed on telescopic arm (411).
7. 7. test system according to claim 6, it is characterised in that the telescopic arm (411) includes inner sleeve (4111) With outer tube (4112), the inner sleeve (4111) and outer tube (4112) are clearance fit.
8. 8. test system according to claim 7, it is characterised in that the inner sleeve (4111) and outer tube (4112) are equal For porous casing.
9. 9. the test system according to claim 5 or 6, it is characterised in that the clamp system (42) is connected to telescopic machine The end of structure (41),

   The clamp system (42) and telescopic arm (411) copline.
10. 10. test system according to claim 9, it is characterised in that

    The clamp system (42) includes supporting rod (421), clamping head (422) and protective head (423), the clamping head (422) It is connected to the end of supporting rod (421).