CN210625845U - Acoustic signal directive property collection system - Google Patents
Acoustic signal directive property collection system Download PDFInfo
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- CN210625845U CN210625845U CN201921774561.1U CN201921774561U CN210625845U CN 210625845 U CN210625845 U CN 210625845U CN 201921774561 U CN201921774561 U CN 201921774561U CN 210625845 U CN210625845 U CN 210625845U
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- box body
- acoustic signal
- collection device
- baffle
- fixedly connected
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Abstract
The utility model discloses an acoustic signal directivity acquisition device, which adopts the technical proposal that the acoustic signal directivity acquisition device comprises a box body, an acoustic signal sensor arranged in the box body, a front baffle and a box cover; the front baffle is positioned on one side of the front panel of the box body, a connecting plate is fixedly connected to the side wall of the front baffle close to the box body, the connecting plate and the baffle are mutually vertical, and one end, far away from the front baffle, of the connecting plate is welded on the box body; through holes are formed in the front panel and the front baffle of the box body, the box cover is bolted to the upper surface of the box body, and the upper surface of the box cover is obliquely arranged. The utility model provides an outdoor bad weather cause the problem of influence to collection system information collection's accuracy easily, reached the influence that reduces flying stone and rainwater and bring, improved the effect of information collection accuracy.
Description
Technical Field
The utility model relates to a railcar safety inspection technical field, more specifically the saying so, it relates to an acoustic signal directive property collection system.
Background
The running gear is a key part for subway running, driving safety can be seriously influenced once a fault occurs, and the non-contact acoustic diagnosis method is the most effective method for carrying out state monitoring and fault diagnosis on the running subway running gear under the condition of not changing the state of a vehicle.
However, the monitoring is generally performed for a long time under the field condition, and meanwhile, the interference of uncertain noise in other directions except for a walking part is generated when the subway runs, so that the acoustic detection is influenced by flying stones and rainwater.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide an acoustic signal directive property collection system, its cooperation through box, case lid and baffle has realized rain-proof water and has flown the influence that stone caused acoustic signal sensor, improves the purpose of acoustic signal sensor information collection accuracy.
In order to achieve the above purpose, the utility model provides a following technical scheme: an acoustic signal directivity acquisition device comprises a box body, an acoustic signal sensor arranged in the box body, a front baffle and a box cover;
the front baffle is positioned on one side of the front panel of the box body, a connecting plate is fixedly connected to the side wall of the front baffle close to the box body, the connecting plate and the baffle are mutually vertical, and one end, far away from the front baffle, of the connecting plate is welded on the box body;
through holes are formed in the front panel and the front baffle of the box body, the box cover is bolted to the upper surface of the box body, and the upper surface of the box cover is obliquely arranged.
Through adopting the above technical scheme, the box, the cooperation of case lid and baffle, can block splashing of gravel and sand, the case lid can make the rainwater flow away fast, it is internal to prevent that the rainwater from permeating into the box, thereby can be better protect the acoustic signal sensor in the box, and during the installation collection system, the through-hole on box and the baffle aligns the direction that the subway passed through, the subway can only get into in the box through the through-hole through the sound that produces, so the cooperation of box and through-hole, the collection direction to acoustic signal sensor has been injectd, can avoid the influence that external sound caused to acoustic signal sensor collection, improve the accuracy of acoustic signal sensor information collection.
The utility model discloses further set up to: one side that preceding baffle is close to the box, all be equipped with the one deck on the lower surface of case lid and the inner wall of box and inhale the sound cotton.
Through adopting above-mentioned technical scheme, inhale the sound cotton and can absorb the noise that the box inside produced, and reduce the reflection of sound, and then can make the information that acoustic signal sensor gathered more accurate.
The utility model discloses further set up to: the box body comprises an outer box body and an inner box body, springs are fixedly connected to four corners of the bottom surface of the outer box body, and the upper ends of the springs are fixedly connected with the lower surface of the inner box body;
all there is the through-hole on outer box and the interior box, and the axis department coincidence of through-hole on outer box, interior box and the baffle, the through-hole diameter on baffle, outer box and the interior box reduces in proper order.
By adopting the technical scheme, the spring can play a role in shock absorption, so that the shock force transmitted to the inner box body during shock is reduced, and the influence of the shock on the acoustic signal sensor is further reduced; and the diameter of through-hole reduces in proper order, and the acoustic signal sensor is the point of gathering sound, is conical and diverges, can play the characteristics of gathering sound signal, further improves the accuracy of information collection.
The utility model discloses further set up to: and platy soundproof cotton is filled in a gap between the outer box body and the inner box body, and the soundproof cotton is fixedly connected to the inner wall of the inner box body.
Through adopting above-mentioned technical scheme, the noise that soundproof cotton can reduce the external production spreads into the probability in the box into, further reduces the influence that external environment caused acoustic signal sensor in to the box.
The utility model discloses further set up to: a plurality of vertical plates are fixedly connected to the outer wall of the inner box body, and sliding grooves for the vertical plates to slide are formed in the inner wall of the outer box body.
Through adopting above-mentioned technical scheme, the cooperation of riser and spout can avoid the in-process that interior box reciprocated to take place lateral shifting, makes acoustical signal sensor can align with the through-hole, makes acoustical signal sensor can gather the signal, can also avoid interior box to cause the influence to soundproof cotton, avoids soundproof cotton's syllable-dividing effect to descend.
The utility model discloses further set up to: the draw-in groove of mutual intercommunication all is seted up on the lateral wall of through-hole department both sides and below on the outer box, installs waterproof sound-permeable membrane inserted sheet in the draw-in groove, and waterproof sound-permeable membrane inserted sheet can shelter from the draw-in groove.
Through adopting above-mentioned technical scheme, waterproof sound-permeable membrane inserted sheet can block the rainwater, prevents in the rainwater gets into the through-hole, and can not cause the hindrance to the transmission of sound, further protects acoustic signal sensor.
The utility model discloses further set up to: the waterproof sound-transmitting membrane inserting piece is formed by welding a steel wire mesh and a waterproof sound-transmitting membrane by using a laser welding technology.
Through adopting above-mentioned technical scheme, the wire net is located waterproof sound-transmitting membrane and keeps away from one side of through-hole, and the wire net can block the gravel and sand that splashes to can protect waterproof sound-transmitting membrane, avoid waterproof sound-transmitting membrane to receive the damage.
The utility model discloses further set up to: the fixed plate is fixedly connected to the side wall of the steel wire mesh, the fixed plate is attached to the side wall of the outer box body, screws are inserted into the fixed plate, and the tail ends of the screws are fixedly connected with the side wall of the outer box body.
Through adopting above-mentioned technical scheme, make things convenient for the dismantlement and the installation of waterproof sound-transmitting membrane inserted sheet, conveniently change waterproof sound-transmitting membrane inserted sheet, improve the efficiency of work.
The utility model discloses further set up to: the through holes are all long strips, and the long through holes are transversely arranged.
Through adopting above-mentioned technical scheme, the through-hole of rectangular shape can increase the size that gets into the inside acoustic signal of box, and then makes more accurate that acoustic signal sensor detected.
To sum up, the utility model discloses compare and have following beneficial effect in prior art:
1. the box body comprises an inner box body and an outer box body, plate-shaped soundproof cotton is filled in a gap between the inner box body and the outer box body, the outer box body is further bolted with a box cover, the lower surface of the inner box body is fixedly connected with a spring, and the lower end of the spring is fixedly connected with the bottom of the outer box body, so that the influence of noise and vibration on an acoustic signal sensor inside the inner box body can be reduced;
2. the through hole on the outer box body is provided with a waterproof sound-transmitting film insertion piece, so that rainwater can be prevented from entering the box body, and the transmission of sound cannot be influenced.
Drawings
FIG. 1 is a block diagram of an embodiment;
FIG. 2 is a sectional view of the embodiment highlighting the inner case and the outer case;
FIG. 3 is a top view of a highlighted riser in an embodiment;
fig. 4 is an enlarged view of a portion a in fig. 1.
In the figure: 1. a box body; 2. an acoustic signal sensor; 3. an inner box body; 31. a spring; 32. a vertical plate; 33. sound-absorbing cotton; 4. An outer case; 41. a through hole; 42. sound insulation cotton; 43. a chute; 44. a card slot; 45. a box cover; 46. a bevel; 5. a baffle plate; 51. a connecting plate; 6. a waterproof sound-transmitting membrane insert; 61. a waterproof sound-transmitting membrane; 62. steel wire mesh; 63. a fixing plate; 64. and (4) screws.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example (b): an acoustic signal directivity acquisition device, as shown in fig. 1, includes a box 1 and an acoustic signal sensor 2 disposed in the box 1, the box 1 can protect the acoustic signal sensor 2, the acoustic signal sensor 2 detects a running part of a passing vehicle, and whether a fault exists in the running part of the vehicle is determined by an abnormality of an acoustic signal.
As shown in fig. 2, the box body 1 comprises an inner box body 3 and an outer box body 4, the acoustic signal sensor 2 is installed in the inner box body 3, through holes 41 are formed in the outer box body 4 and a front panel of the inner box body 1, and when a vehicle passes through, the acquisition range of the acoustic signal sensor is limited by the through holes 41, so that the acquisition of irrelevant signals can be reduced, and the accuracy of acoustic signal acquisition is further improved; soundproof cotton 42 is filled in a gap between the inner box body 3 and the outer box body 4, and the soundproof cotton 42 can isolate the external volume, so that the influence of irrelevant noise on sound signal acquisition is further reduced; and the through hole 41 is transversely arranged in a strip shape, so that the size of the acoustic signal entering the box body can be increased, excessive noise can not enter the box body, and the accuracy of the acoustic signal sensor 2 for detecting the acoustic signal can be increased.
As shown in fig. 2, the lower surface of the inner box 3 is fixedly connected with a plurality of uniformly distributed springs 31, the springs 31 are vertically arranged, the lower ends of the springs 31 are fixedly connected with the inner bottom surface of the outer box 4, the springs 31 play a role in shock absorption, and the influence of shock on the acoustic signal sensor 2 is reduced.
As shown in fig. 2 and 3, a plurality of vertical plates 32 are fixedly connected to the outer wall of the inner box 3, sliding grooves 43 for the vertical plates 32 to slide are formed in the inner wall of the outer box 4, and the vertical plates 32 and the sliding grooves 43 are matched with each other, so that the inner box 3 can be prevented from moving transversely in the up-and-down moving process, further compression on the soundproof cotton 42 is avoided, and the inner box 3 can be made to move up and down better.
Still the cotton 33 of inhaling of fixedly connected with one deck on the inner wall of interior box 3, inhale the sound cotton 33 and can absorb the sound of the inside production of interior box 3, reduce the inside sound reflection of interior box 3 to reduce the influence that inside sound caused acoustic signal sensor 2.
As shown in fig. 1 and 2, the front side of the outer box 4 is provided with a baffle 5, two ends of the baffle 5 are fixedly connected with connecting plates 51, the connecting plates 51 and the baffle 5 are vertically arranged, one end of the connecting plate 51 far away from the baffle 5 and the surface bolt of the outer box 4 are provided with through holes 41 on the side wall of the baffle 5, the through holes 41 on the baffle 5 are aligned with the through holes 41 on the outer box 4, the baffle 5 can block sundries such as splashed stones generated during the process of the subway, the impact on the box 1 is reduced, the service life of the collecting device is prolonged, the baffle 5 is bolted with the outer box 4 through the connecting plates 51, and the deformed baffle 5 is conveniently detached.
As shown in fig. 1 and 4, the position of the through hole 41 of the outer box 4 is provided with a strip-shaped slot 44, the slot 44 is located on two sides and below of the through hole 41 for three distributions, the three slots 44 are connected with each other to form a U-shape, and the slot 44 is internally inserted with a waterproof sound-transmitting membrane insert 6, the waterproof sound-transmitting membrane insert 6 can play a role in waterproof sound transmission, so that rainwater is prevented from entering the slot, and the slot can also block the transmission of sound waves.
As shown in fig. 4, the waterproof sound-transmitting membrane insert 6 is an insert structure formed by welding a waterproof sound-transmitting membrane 61 and a steel wire mesh 62, the steel wire mesh 62 prevents large gravels flying from the direction of acoustic signals from entering the box body at the outside, and also plays a certain protection role on the waterproof sound-transmitting membrane 61, the waterproof sound-transmitting membrane 61 has the characteristic of being waterproof and not blocking sound transmission, so that sound transmission can be realized, meanwhile, the air is free to exchange convection through the membrane layer to keep pressure balance inside and outside the box, and rainwater and dust are isolated outside.
As shown in fig. 4, the fixing plate 63 is fixedly connected to the side wall of the steel wire mesh 62 far away from the waterproof sound-transmitting membrane 61, the fixing plate 63 is inserted with a screw 64, and the tail end of the screw 64 is fixedly connected with the side wall of the outer box 4, so that the waterproof sound-transmitting membrane insert 6 is convenient to detach and install.
As shown in fig. 1 and 2, a box cover 45 is bolted to the upper surface of the outer box 4, the box cover 45 can reduce the probability of foreign matters entering the box 1, the upper surface of the box cover 45 is an inclined surface 46, and the inclined surface 46 can drain away rainwater falling on the box cover 45 in time, so as to prevent the rainwater from penetrating into the box 1.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides an acoustic signal directive property collection system which characterized in that: comprises a box body (1), an acoustic signal sensor (2) arranged in the box body (1), a front baffle (5) and a box cover (45);
the front baffle (5) is positioned on one side of a front panel of the box body (1), a connecting plate (51) is fixedly connected to the side wall, close to the box body (1), of the front baffle (5), the connecting plate (51) and the baffle (5) are perpendicular to each other, and one end, far away from the front baffle (5), of the connecting plate (51) is welded on the box body (1);
through holes (41) are formed in the front panel of the box body (1) and the front baffle (5), the box cover (45) is bolted to the upper surface of the box body (1), and the upper surface of the box cover (45) is obliquely arranged.
2. An acoustic signal directivity collection device according to claim 1, characterized in that: one side of the front baffle (5) close to the box body (1), the lower surface of the box cover (45) and the inner wall of the box body (1) are respectively provided with a layer of sound-absorbing cotton (33).
3. An acoustic signal directivity collection device according to claim 1, characterized in that: the box body (1) comprises an outer box body (4) and an inner box body (3), springs (31) are fixedly connected to four corners of the bottom surface of the outer box body (4), and the upper ends of the springs (31) are fixedly connected with the lower surface of the inner box body (3);
through holes (41) are formed in the outer box body (4) and the inner box body (3), and the through holes (41) in the outer box body (4), the inner box body (3) and the baffle (5) are located on the same straight line.
4. An acoustic signal directivity collection device according to claim 3, characterized in that: the gap between the outer box body (4) and the inner box body (3) is filled with platy soundproof cotton (42), and the sound absorption cotton (33) is fixedly connected to the inner wall of the inner box body (3).
5. An acoustic signal directivity collection device according to claim 3, characterized in that: a plurality of vertical plates (32) are fixedly connected to the outer wall of the inner box body (3), and sliding grooves (43) for the vertical plates (32) to slide are formed in the inner wall of the outer box body (4).
6. An acoustic signal directivity collection device according to claim 3, characterized in that: through-hole (41) on outer box (4) locate both sides and all set up draw-in groove (44) of mutual intercommunication on the lateral wall of below, install waterproof sound-permeable membrane inserted sheet (6) in draw-in groove (44), waterproof sound-permeable membrane inserted sheet (6) can shelter from draw-in groove (44).
7. An acoustic signal directivity collection device according to claim 6, wherein: the waterproof sound-transmitting membrane inserting piece (6) is formed by welding a steel wire mesh (62) and a waterproof sound-transmitting membrane (61) by a laser welding technology.
8. An acoustic signal directivity collection device according to claim 7, wherein: the waterproof sound-transmitting membrane (61) is made of a novel polymer material and has a net-shaped microporous structure, and the micropore diameter of the waterproof sound-transmitting membrane (61) is smaller than the diameter of rainwater and larger than the diameter of water vapor molecules.
9. An acoustic signal directivity collection device according to claim 7, wherein: fixedly connected with fixed plate (63) on the lateral wall of wire net (62), fixed plate (63) laminating is on the lateral wall of outer box (4), and it has screw (64) to peg graft on fixed plate (63), the terminal of screw (64) and the lateral wall fixed connection of outer box (4).
10. An acoustic signal directivity collection device according to claim 7, wherein: the through holes (41) are all long strips, and the long strip-shaped through holes (41) are transversely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921774561.1U CN210625845U (en) | 2019-10-22 | 2019-10-22 | Acoustic signal directive property collection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921774561.1U CN210625845U (en) | 2019-10-22 | 2019-10-22 | Acoustic signal directive property collection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210625845U true CN210625845U (en) | 2020-05-26 |
Family
ID=70761647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921774561.1U Active CN210625845U (en) | 2019-10-22 | 2019-10-22 | Acoustic signal directive property collection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210625845U (en) |
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2019
- 2019-10-22 CN CN201921774561.1U patent/CN210625845U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100089 building 25, a 5, Deshengmenwai West Street, Haidian District, Beijing Patentee after: SUBWAY OPERATION TECHNOLOGY R & D CENTER, BEIJING SUBWAY OPERATION CO.,LTD. Patentee after: Harbin guotie Technology Group Co., Ltd Address before: 100089 building 25, a 5, Deshengmenwai West Street, Haidian District, Beijing Patentee before: SUBWAY OPERATION TECHNOLOGY R & D CENTER, BEIJING SUBWAY OPERATION CO.,LTD. Patentee before: Harbin Railway Research Institute Technology Co., Ltd |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220608 Address after: 100035 No.2 Xizhimenwai street, Xicheng District, Beijing Patentee after: BEIJING SUBWAY OPERATION Corp. Patentee after: Harbin guotie Technology Group Co., Ltd Address before: 100089 building 25, a 5, Deshengmenwai West Street, Haidian District, Beijing Patentee before: SUBWAY OPERATION TECHNOLOGY R & D CENTER, BEIJING SUBWAY OPERATION CO.,LTD. Patentee before: Harbin guotie Technology Group Co., Ltd |
|
| TR01 | Transfer of patent right |