CN218117372U - Totally enclosed anechoic chamber - Google Patents
Totally enclosed anechoic chamber Download PDFInfo
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- CN218117372U CN218117372U CN202222551166.5U CN202222551166U CN218117372U CN 218117372 U CN218117372 U CN 218117372U CN 202222551166 U CN202222551166 U CN 202222551166U CN 218117372 U CN218117372 U CN 218117372U
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- room body
- wedge
- anechoic chamber
- otter board
- totally enclosed
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Abstract
The utility model relates to a technical field of noise elimination test equipment specifically discloses a totally enclosed anechoic chamber, and its technical scheme main points are: including the room body, four lateral walls, top surface and the bottom surface of the room body are all densely covered and are provided with the wedge absorber, the entry has been seted up to a lateral wall of the room body, the lateral wall of the room body rotates to be connected with and is used for opening and close the sealing door of entry works as the sealing door is closed during the entry, the sealing door orientation the lateral wall of the internal portion in room is provided with the wedge absorber equally, the fixed pedestrian's geonet that is used for supplying the people to walk and is used for supporting detection device and product that awaits measuring of bottom surface level of the room body, the pedestrian's geonet is located the setting of room body bottom surface the top of wedge absorber. The application has the effect of being beneficial to improving the stability of the product to be detected in the anechoic chamber during detection.
Description
Technical Field
The application relates to the technical field of silencing test equipment, in particular to a totally-enclosed silencing chamber.
Background
The anechoic chamber is not only a special laboratory for acoustic testing, but also an important component of a testing system, and is actually one of acoustic testing devices, and the acoustic performance index of the anechoic chamber directly influences the testing precision.
In the related art, when a product to be tested is acoustically tested, a quiet environment is usually required to be created to reduce interference of noise on a test result, and therefore, the product testing is usually required to be performed in an anechoic chamber. General anechoic room is including the room body, and the inside wall and the interior top of the room body are all fixed to be provided with and are used for inhaling the sound cotton of inhaling, and the internal portion in room is provided with and is used for carrying out the detection device that detects to the product that awaits measuring. In order to improve the silencing effect of the silencing chamber, sound-absorbing cotton is usually arranged on the inner bottom surface of the house body, so that a totally enclosed test space is formed inside the house body.
In view of the above-mentioned related technologies, the inventor thinks that the sound-absorbing cotton is a soft material, and when a product to be detected and a detection device are placed on the sound-absorbing cotton on the bottom surface in the house body, the product to be detected and the detection device are unstable and easy to shake, so that the product to be detected and the detection device are inconvenient to place, and the stability of the product to be detected during detection is reduced.
SUMMERY OF THE UTILITY MODEL
In order to be favorable to improving the stability of the product to be measured when detecting in the anechoic chamber, the application provides a totally enclosed anechoic chamber.
The application provides a totally enclosed anechoic chamber adopts following technical scheme:
the utility model provides a totally enclosed anechoic chamber, includes the room body, four lateral walls, top surface and the bottom surface of the room body are all densely covered and are provided with the wedge absorber, the entry has been seted up to a lateral wall of the room body, the lateral wall of the room body rotates to be connected with and is used for opening and close the sealing door of entry works as the sealing door is closed during the entry, the sealing door orientation the internal portion's of room lateral wall is provided with the wedge absorber equally, the fixed pedestrian's geonet that is used for supplying the people to walk and is used for supporting detection device and product that awaits measuring of bottom surface level of the room body, the pedestrian's geonet is located the setting of room body bottom surface the top of wedge absorber.
Through adopting above-mentioned technical scheme, four lateral walls of the room body, top surface and bottom surface are all densely covered and are provided with the wedge absorber, when the closed entry of sealing door, the sealing door is provided with the wedge absorber equally towards the internal portion's of room lateral wall, make the inner space of anechoic chamber surround by the wedge absorber and establish, be favorable to improving the anechoic chamber's noise cancelling effect, the fixed top that sets up the wedge absorber that sets up in room body bottom surface supplies the people to walk and is used for supporting detection device and the product that awaits measuring in the top of the wedge absorber that sets up of people's ground mat, it is difficult to cause the influence to the wedge that the sound absorption lies in the setting of room body bottom surface, be convenient for awaiting measuring product and detection device's laying, thereby be favorable to improving the product that awaits measuring and examine time measuring stability in the anechoic chamber.
Preferably, the pedestrian ground net comprises a plurality of net plates, the net plates are located on the same horizontal plane and are adjacent to each other, the net plates are detachably connected, end corners of the net plates are provided with connecting assemblies used for being adjacent to each other and fixedly connected with the net plates, and side walls of the house body are annularly provided with supporting blocks used for supporting the net plates.
Through adopting above-mentioned technical scheme, the pedestrian's counterpoise includes a plurality of otter boards, and a plurality of otter boards are located same horizontal plane, and adjacent otter board can dismantle the connection, the installation operation of the pedestrian's counterpoise of being convenient for, and the supporting shoe supports the border of pedestrian's counterpoise, and coupling assembling connects adjacent otter board fixedly to realize the fixed of pedestrian's counterpoise at the internal portion of room.
Preferably, coupling assembling includes connecting plate and fastening bolt, the connecting plate butt in adjacent the lower surface of otter board end angle department, fastening bolt's quantity is provided with a plurality of, a plurality of fastening bolt activity is passed the screw thread is worn to locate adjacently behind the connecting plate the otter board, every the otter board corresponds the screw thread and wears to be equipped with one fastening bolt.
Through adopting above-mentioned technical scheme, when the end angle department butt of adjacent otter board, connecting plate butt in the lower surface of adjacent otter board end angle butt department, then the otter board is worn to locate by the screw thread behind the fastening bolt activity passing connecting plate, and a fastening bolt is worn to be equipped with by every otter board corresponding screw thread, and fastening bolt supports tightly connecting plate and otter board connection, realizes the fixed connection between the adjacent otter board.
Preferably, the cross-section of sound absorption wedge is isosceles trapezoid and sets up, is located four lateral walls of the room body the lower bottom surface of sound absorption wedge with the lateral wall butt of the room body is fixed, is located the room body top surface the lower bottom surface of sound absorption wedge with the top surface butt of the room body is fixed, is located the room body bottom surface the lower bottom surface of sound absorption wedge with the bottom surface butt of the room body is fixed.
Through adopting above-mentioned technical scheme, the wedge absorber corresponds four lateral walls, top surface and the bottom surface that the butt is fixed in the room body respectively, and the cross-section of wedge absorber is isosceles trapezoid and is provided with the sound absorption effect that does benefit to improvement wedge absorber.
Preferably, the sound-absorbing wedges positioned on the four side walls, the top surface and the bottom surface of the house body are arranged in a criss-cross manner.
Through adopting above-mentioned technical scheme, this is provided with and does benefit to the sound absorption effect that further improves the wedge that absorbs sound to be favorable to improving the accuracy that the product detected.
Preferably, the bottom surface of the house body is horizontally provided with anti-falling cloth, and the anti-falling cloth is positioned between the pedestrian groundnet and the sound-absorbing wedges positioned on the bottom surface of the house body.
Through adopting above-mentioned technical scheme, prevent falling cloth and have and do benefit to and prevent that the product that awaits measuring or other test parts from falling into between the gap of two adjacent sound absorption wedges through the clearance of people's bank of earth's net.
Preferably, the wedge that absorbs sound is including being support frame, the sound absorption cotton that isosceles trapezoid shape set up and enclosing the cloth, it encloses to locate to enclose the cloth the support frame will the support frame wraps up completely, the sound absorption cotton fill in inside the support frame.
Through adopting above-mentioned technical scheme, the profile of isosceles trapezoid shape is supported to the support frame, and sound carries out the sound absorption operation through enclosing cloth entering sound absorption cotton to realize the sound absorption effect.
Preferably, the support frame is located the position vertical fixation of bottom surface is provided with the inserted bar under the wedge absorber, the inserted bar is worn to locate enclose cloth, the confession has been seted up to four lateral walls, top surface and the bottom surface of the room body the slot that the inserted bar was pegged graft, the inserted bar with slot interference fit.
Through adopting above-mentioned technical scheme, when needs fix the sound wedge at four lateral walls, top surface and the bottom surface of the room body, the sound wedge passes through the inserted bar and inserts in the jack, and the fixed of sound wedge is realized with the interference fit of slot to the inserted bar, and the dismouting of being convenient for.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through setting up the pedestrian's earth mat, the pedestrian's earth mat supplies the people to walk and is used for supporting detection device and the product that awaits measuring, is difficult to cause the influence to the sound absorption wedge that is located the setting of room body bottom surface, and the product and detection device's of being convenient for lay to be favorable to improving the product that awaits measuring and examine time measuring stability in the anechoic chamber.
2. Through setting up connecting plate and fastening bolt, when the end angle department butt of adjacent otter board, the lower surface of connecting plate butt in adjacent otter board end angle butt department, then the otter board is worn to locate by the screw thread behind the fastening bolt activity passes the connecting plate, and a fastening bolt is worn to be equipped with by every otter board corresponding screw thread, and fastening bolt supports tightly with connecting plate and otter board connection, realizes the fixed connection between the adjacent otter board.
3. Set the cross-section through the sound absorption wedge to isosceles trapezoid, and the sound absorption wedge is vertically and horizontally staggered and sets up, be favorable to improving the sound absorption effect of sound absorption wedge to be favorable to improving the accuracy that the product detected.
Drawings
Fig. 1 is a schematic view of the overall structure of a totally enclosed anechoic chamber according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of the interior of the totally enclosed anechoic chamber according to the embodiment of the present application.
FIG. 3 is a cross-sectional view of an acoustical wedge of an embodiment of the present application.
FIG. 4 is a schematic structural diagram of a pedestrian counterpoise formed by four mesh plates fixedly connected by a connecting assembly in the embodiment of the application.
Description of the reference numerals:
1. a house body; 2. a sound-absorbing wedge; 21. a support frame; 22. sound absorbing cotton; 23. enclosing cloth; 3. a sealing door; 4. a pedestrian ground net; 41. a screen plate; 5. a connection assembly; 51. a connecting plate; 52. fastening a bolt; 6. preventing cloth from falling; 7. and (4) inserting the rod.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses totally enclosed anechoic chamber, refer to fig. 1, including the room body 1, the room body 1 is square setting, the entry that supplies the staff business turn over is seted up to a lateral wall of the room body 1, and simultaneously, the lateral wall of the room body 1 is connected with the sealing door 3 that is used for opening and close the entry through the hinge rotation, when 3 closed entries of sealing door, 3 face border towards the room body 1 lateral wall of sealing door encircles the bonding has the sealing layer, the sealing layer sets up to soft rubber in this embodiment, leakproofness when improving 3 closed entries of sealing door.
Referring to fig. 1 and 2, four inside walls, interior top surface and the interior bottom surface of the room body 1 are all densely covered and are provided with wedge 2, when 3 closed entries of sealing door, 3 inside lateral walls towards the room body of sealing door are provided with wedge 2 equally, and the wedge 2 that absorbs sound of four lateral walls of the room body, top surface and bottom surface is vertically and horizontally staggered and sets up, in this embodiment, three wedge 2 that absorbs sound is a set of parallel arrangement that is, and adjacent two sets of wedge 2 that absorbs sound is perpendicular setting to improve wedge 2's sound absorption effect.
Referring to fig. 2 and 3, wedge 2 includes support frame 21, absorbent cotton 22 and encloses cloth 23, and support frame 21 is isosceles trapezoid fretwork setting, encloses cloth 23 and encloses and locate support frame 21 and wrap up support frame 21 completely, and absorbent cotton 22 fills inside support frame 21. Inside sound got into the cotton 22 of sound absorption through enclosing cloth 23, the cotton 22 of sound absorption absorbed sound to make the wedge 2 that absorbs sound reach the effect of making an uproar that absorbs sound and fall. Meanwhile, the support frame 21 is located under the wedge 2, the position of the bottom surface is vertically fixed and welded with the inserted bar 7, the inserted bar 7 penetrates through the surrounding cloth 23, the four side walls, the top surface and the bottom surface of the house body 1 are provided with a plurality of slots for the inserted bar 7 to be inserted, and the inserted bar 7 is in interference fit with the slots. Fix sound absorption wedge 2 at four lateral walls of the room body 1 as required, when top surface and bottom surface, the staff aims at the inserted bar 7 that sets up on with sound absorption wedge 2 and inserts at the slot, inserted bar 7 makes sound absorption wedge 2 be difficult to drop with the interference fit of slot, the lower bottom surface that is located sound absorption wedge 2 of four lateral walls of the room body is fixed with the lateral wall butt of the room body 1, the lower bottom surface that is located sound absorption wedge 2 of the 1 top surface of the room body is fixed with the top surface butt of the room body 1, the lower bottom surface that is located sound absorption wedge 2 of the 1 bottom surface of the room body is fixed with the bottom surface butt of the room body 1, make sound absorption wedge 2 level and smooth the arranging. The sound absorption wedge 2 is convenient to detach, and only the sound absorption wedge 2 needs to be pulled out from the slot through the inserted rod 7, so that the sound absorption wedge 2 is convenient to replace.
Referring to fig. 2 and 4, a pedestrian underpan 4 for people to walk and for supporting the detection device and the product to be detected is horizontally and fixedly arranged on the bottom surface of the house body 1, and the pedestrian underpan 4 is positioned above the sound-absorbing wedge 2 arranged on the bottom surface of the house body 1. Specifically, people's bank of china mat 4 includes a plurality of otter boards 41, in this embodiment, the quantity of otter board 41 sets up to four, four otter boards 41 all are square setting, and four otter boards 41 are located same horizontal plane, adjacent four otter boards 41 can be dismantled and connect, the link angle department of four otter boards 41 is provided with and is used for four otter board 41 fixed connection's coupling assembling 5, and simultaneously, the lateral wall of the room body 1 encircles and is provided with the supporting shoe that is used for supporting people's bank of china mat 4 border, the supporting shoe is the level setting.
Referring to fig. 4, the connection assembly 5 includes a connection plate 51 and fastening bolts 52, the connection plate 51 abuts against lower surfaces of the corners of the four adjacent net plates 41, the number of the fastening bolts 52 is set to be four, in this embodiment, the four fastening bolts 52 are movably arranged from bottom to top and penetrate through the connection plate 51 and then penetrate through the four net plates 41 through threads respectively, and each net plate 41 penetrates through one fastening bolt 52 corresponding to the thread, so that the connection plate 51 is fixed on the four net plates 41, and the four net plates 41 are fixedly connected.
Referring to fig. 2, the bottom surface level is provided with prevents cropping cloth 6 in the room body 1, prevents cropping cloth 6 and is located pedestrian's counterpoise 4 and is located between the wedge absorber 2 of the 1 bottom surface in room body, prevents cropping cloth 6 under the sound absorption that does not influence the wedge absorber 2 that is located the 1 bottom surface in room body, is favorable to preventing that product or other test component to be measured from falling into between the gap of two adjacent wedge absorbers 2 through the clearance of pedestrian's counterpoise 4.
The implementation principle of the totally enclosed anechoic chamber in the embodiment of the application is as follows: four lateral walls of the room body 1, a top surface, 3 wedges 2 that set up towards the lateral wall of the room body 1 inside of bottom surface and sealing door are favorable to improving the anechoic effect of anechoic chamber, pedestrian's counterpoise 4 is fixed to be set up and is lieing in 2 tops of the wedges that 1 bottom surface of the room body set up, can supply the people to walk and be used for supporting detection device and the product that awaits measuring, it is difficult to cause the influence to the wedge 2 that lies in 1 bottom surface of the room body setting, be convenient for await measuring laying of product and detection device, thereby be favorable to improving the stability that awaits measuring the product and examine time measuring in the anechoic chamber, prevent that rag 6 is favorable to preventing that the product that awaits measuring or other test parts from falling into between the gap of two adjacent wedges 2 through pedestrian's counterpoise 4 clearance.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A totally enclosed anechoic chamber, characterized by: including the room body (1), four lateral walls, top surface and the bottom surface of the room body (1) are all densely covered and are provided with wedge absorber (2), the entry has been seted up to a lateral wall of the room body (1), the lateral wall of the room body (1) rotates to be connected with and is used for opening and close sealing door (3) of entry work as sealing door (3) are closed during the entry, sealing door (3) orientation the inside lateral wall of the room body (1) is provided with wedge absorber (2) equally, the fixed pedestrian's netowrk (4) that is used for supplying the people to walk and is used for supporting detection device and the product that awaits measuring of bottom surface level of the room body (1), pedestrian's netowrk (4) are located the setting of the room body (1) bottom surface the top of wedge absorber (2).
2. A totally enclosed anechoic chamber as claimed in claim 1, wherein: pedestrian's counterpoise (4) include a plurality of otter board (41), a plurality of otter board (41) are located same horizontal plane, and are adjacent otter board (41) can be dismantled the connection, the end angle department of otter board (41) is provided with and is used for adjacent otter board (41) fixed connection's coupling assembling (5), the lateral wall of the room body (1) is around being provided with and is used for supporting the supporting shoe of otter board (41).
3. A totally enclosed anechoic chamber as claimed in claim 2, wherein: coupling assembling (5) are including connecting plate (51) and fastening bolt (52), connecting plate (51) butt in adjacent the lower surface of otter board (41) end angle department, the quantity of fastening bolt (52) is provided with a plurality of, a plurality of fastening bolt (52) activity is passed the screw thread is worn to locate adjacently behind connecting plate (51) otter board (41), every otter board (41) correspond the screw thread and are worn to be equipped with one fastening bolt (52).
4. A totally enclosed anechoic chamber as defined in claim 1, wherein: the cross-section of sound wedge (2) is isosceles trapezoid and sets up, is located four lateral walls of the room body (1) the lower bottom surface of sound wedge (2) with the lateral wall butt of the room body (1) is fixed, is located the room body (1) top surface the lower bottom surface of sound wedge (2) with the top surface butt of the room body (1) is fixed, is located the room body (1) bottom surface the lower bottom surface of sound wedge (2) with the bottom surface butt of the room body (1) is fixed.
5. A totally enclosed anechoic chamber as claimed in claim 1, wherein: the sound-absorbing wedges (2) are positioned on four side walls, the top surface and the bottom surface of the house body (1) and are arranged in a criss-cross mode.
6. A totally enclosed anechoic chamber as claimed in claim 1, wherein: the house body (1) bottom surface level is provided with anti-cropping cloth (6), anti-cropping cloth (6) are located pedestrian's groundnet (4) with be located the house body (1) bottom surface between sound absorption wedge (2).
7. A totally enclosed anechoic chamber as claimed in claim 1, wherein: wedge absorber (2) are including support frame (21), sound absorption cotton (22) and enclosing cloth (23) that are the setting of isosceles trapezoid shape, enclose cloth (23) enclose locate support frame (21) will support frame (21) wraps up completely, sound absorption cotton (22) fill in inside support frame (21).
8. A totally enclosed anechoic chamber as defined in claim 7, wherein: support frame (21) are located the position vertical fixation of bottom surface is provided with inserted bar (7) under wedge absorber (2), inserted bar (7) are worn to locate enclose cloth (23), the confession has been seted up to four lateral walls, top surface and the bottom surface of the room body (1) the slot that inserted bar (7) were pegged graft, inserted bar (7) with slot interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222551166.5U CN218117372U (en) | 2022-09-24 | 2022-09-24 | Totally enclosed anechoic chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222551166.5U CN218117372U (en) | 2022-09-24 | 2022-09-24 | Totally enclosed anechoic chamber |
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| Publication Number | Publication Date |
|---|---|
| CN218117372U true CN218117372U (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222551166.5U Active CN218117372U (en) | 2022-09-24 | 2022-09-24 | Totally enclosed anechoic chamber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117432252A (en) * | 2023-12-21 | 2024-01-23 | 上海材料研究所有限公司 | Automatic switching mechanism for full-anechoic chamber and half-anechoic chamber and application method thereof |
-
2022
- 2022-09-24 CN CN202222551166.5U patent/CN218117372U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117432252A (en) * | 2023-12-21 | 2024-01-23 | 上海材料研究所有限公司 | Automatic switching mechanism for full-anechoic chamber and half-anechoic chamber and application method thereof |
| CN117432252B (en) * | 2023-12-21 | 2024-03-01 | 上海材料研究所有限公司 | Automatic switching mechanism for full-anechoic chamber and half-anechoic chamber and application method thereof |
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