CN201467447U - Assembled metallic silence chamber - Google Patents
Assembled metallic silence chamber Download PDFInfo
- Publication number
- CN201467447U CN201467447U CN2009201083025U CN200920108302U CN201467447U CN 201467447 U CN201467447 U CN 201467447U CN 2009201083025 U CN2009201083025 U CN 2009201083025U CN 200920108302 U CN200920108302 U CN 200920108302U CN 201467447 U CN201467447 U CN 201467447U
- Authority
- CN
- China
- Prior art keywords
- sound
- shaped steel
- steel connector
- module
- vibration isolator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The utility model relates to an assembled metallic silence chamber which is used for the acoustic measurement of mobile phones, earphones, mikes, hearing aids, and the like. The assembled metallic silence chamber comprises soundproof modules, connecting pieces, a vibration isolator, a soundproof door, a soundproof window, a ventilative silencer and a moveable bracket, wherein a bottom faceplate, a vertical faceplate and a top faceplate are respectively formed by the insertion of the soundproof modules and H-shaped steel connecting pieces, the bottom faceplate is fixed on the vibration isolator, corners of the vertical faceplate are connected by corner post steel connecting pieces, the vertical faceplate, the bottom faceplate and the top faceplate are connected by C-shaped steel, F-shaped steel and angle steel connecting pieces, bar-shaped sound-absorbing materials are respectively arranged between the soundproof modules and the connecting pieces, metallic perforated sound-absorbing modules are installed on the inner surface, and the soundproof door is installed on a box body on which the soundproof window, the ventilative silencer, a monitor and the moveable bracket can also be installed. The assembled metallic silence chamber is convenient to produce, convey and assemble due to the assembling structure. The assembled metallic silence chamber has good effects of vibration isolation, sound insulation, ventilation, operation and monitoring and attractive appearance, is firm, durable and environmentally friendly and is free from extraneous odour, and the background noise can be less than 20 dB.
Description
Technical field
The utility model relates to a kind of silencer box, especially a kind of assembled metal silencer box.
Background technology
Silencer box is a kind of acoustics casing, require airtight performance and acoustic characteristic good, be used to measure the less electronic product of mobile phone, earphone, Mike, hearing aids equal-volume or the acoustic characteristic of parts, also casing can be done greatly, so that bigger electronics or the engineering goods of measurement volumes.
Propagation of noise mainly comprises two kinds of approach, and a kind of is the air borne approach, and another kind is the solid route of transmission.The indoor ambient noise scope of general measure is 40-70dB (A), and the background noise scope that requires when measuring is generally 20-30dB (A), because the existence of this noise difference, just measured object need be put into a special quiet space of preparing and measure, influence the effect of measurement with reason ambient noise not.If with the space of silencer box as the placement measured object, has good sound insulation property with regard to the casing that requires silencer box, its inwall is reflecting background not, the tank floor of kiss the earth is the solid borne noise not, the gap sealing of door and window is tight, and ventilating opening avoids importing into fan noise, pneumatic noise and external environmental noise as far as possible.
Existing silencer box is generally by metallic plate welding or be formed by fixedly connecting, and also the good material of sound insulation property such as useful concrete is built by laying bricks or stones and formed, and in inwall sound-absorbing material is installed then.The silencer box of this structure is the body heaviness not only, use inconvenience, and vibration isolation, sound insulation and acoustically effective is undesirable.
Summary of the invention
The purpose of this utility model provides a kind of rational in infrastructure, sealing is tight, specious, easy to use and vibration isolation, sound insulation and acoustically effective are good assembled metal silencer box.
Technical solution adopted in the utility model is: a kind of assembled metal silencer box, comprise bottom panel, facade plate and top panel, and a bottom panel, four facade plates and a top panel are fixed together.It comprises sound insulation module 1, H shaped steel connector 2, vibration isolator support 3, vibration isolator 4, decorates skirtboard 5, C shaped steel connector 6, corner post steel fastener 7, doorframe module 8, soundproof door 9, F shaped steel connector 10, angle-steel connector 11, bar shaped sound-absorbing material 12 and traversing carriage 13.Bottom panel, facade plate and top panel are pegged graft by sound insulation module 1 and H shaped steel connector 2 respectively and are formed.Bottom panel is fixedly mounted on the vibration isolator support 3, vibration isolator support 3 is fixedly mounted on the vibration isolator array that is made of a plurality of vibration isolators 4, decorate the edge that skirtboard 5 is installed in bottom panel, C shaped steel connector 6 is screwed onto the upper surface of bottom panel edge, four facade plates vertically are plugged in the C type groove of C shaped steel connector 6, the corner of adjacent facade plate is linked to each other by screw through corner post steel fastener 7 respectively, doorframe module 8 is arranged in the facade plate by H shaped steel connector 2, soundproof door 9 is installed in the doorframe module 8 through hinge, F shaped steel connector 10 snaps onto the upper end of facade plate, top panel is installed on the F shaped steel connector 10 of facade plate, and be screwed onto with it, angle-steel connector 11 is fixedly connected on the seam crossing of top panel and facade plate, four drift angles of top panel are fixed with a metallic plate cornerite 14 respectively, metal sound absorbing module 15 is installed in top panel through fixture, the facade plate, the inner surface of top panel and soundproof door, traversing carriage 13 is fixed on the bottom panel.Be respectively equipped with bar shaped sound-absorbing material 12 in the C type groove of H shaped steel connector 2, C shaped steel connector 6, corner post steel fastener 7 and F shaped steel connector 10.
Vibration isolator is spring vibration isolation device or rubber shock absorber or spring and plate building rubber compound vibration isolator.
The crack between a door and its frame periphery place of doorframe module 8 and described soundproof door 9 is staggered to be equipped with a dovetail type metal draw-in groove 16, is inlaid with a magnetic sealing strip 17 in this metal draw-in groove.
The beneficial effects of the utility model are:
1, easy to assembly: owing to adopt modularization production and assembling, each face of its casing is assembled according to function by sound insulation, sound absorbing module and various connector, therefore be convenient to size production, be convenient to on-the-spot assembling fast, be convenient to dismantle the strange land, back and re-assembly according to customer requirement.
2, sealing is tight: owing to be filled with the bar shaped sound-absorbing material in the C type groove of sound insulation module, make noise not only will walk around certain distance when passing the slit of connector, and effectively absorbed sound by the bar shaped sound-absorbing material.Also, door leaf is inhaled mutually mutually with the other side's metallic plate with the magnetic sealing strip on the doorframe, be made its sealing tight because soundproof door adopts staggered two pass magnetic seal bar.Owing to adopt the double glazing sound proof window of good seal, the overall sealing performance of window is improved again.
3, vibration isolation and defening effect are good: owing to be installed with vibration isolator in the bottom of bottom panel through the vibration isolator support, make silencer box form the floating building structure of isolating with ground, the solid borne noise of having avoided ground to transmit effectively.Also, make the sound insulation property of sound insulation module reach 45dB owing to be filled with damping glue-line, sound insulating material layer and sound-absorbing material layer in the sound insulation module.
4, sound absorption characteristics excellence: owing to adopt the metal piercing acoustic board, its acoustic absorptivity improves greatly than common sound absorber, can effectively reduce the noise reflection of interior.
5, performance of ventilating ideal: because air intake and air draft muffler can be installed, can the air draft blower fan be installed by quiet case, therefore the personnel that can be convenient for measuring measure in Large Box.
6, easy to use: as, to measure the dummy head or the measured article of mobile phone and can send into or shift out silencer box by mobile table top easily because traversing carriage can be installed as required.
7, environmental protection, health: do not fire and tasteless environment-friendly materials because sound insulation, damping, sound absorption and diaphragm material all adopt, make free from extraneous odour in the silencer box, be convenient to personnel and enter operation.
8, specious, be convenient to clean: because casing adopts well-regulated connector, limit, Jiao Chu are equipped with and decorate skirtboard or cornerite, and inside and outside surface makes it specious through spraying paint or plastic-blasting is handled.Be the metal piercing acoustic board owing to what adopt also, inside is surrounded by diaphragm, is convenient to cleaning or scouring.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model sound insulation module cross section view figure.
Fig. 3 is the utility model facade plate and bottom panel syndeton schematic diagram.
Fig. 4 is the utility model rubber shock absorber facade view.
Fig. 5 is the utility model spring and plate building rubber compound vibration isolator facade view.
Fig. 6 is the utility model top panel and facade board connecting structure schematic diagram.
Fig. 7 is the utility model corner post steel fastener structural representation.
Fig. 8 is that the utility model metal sound absorbing module is connected profile with the sound insulation module.
Fig. 9 is the utility model traversing carriage structural representation.
Figure 10 is the utility model soundproof door cross section view.
Figure 11 is the utility model top muffler scheme of installation.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done to describe in further detail.
Assembled metal silencer box as shown in Figure 1, fixedly connected through connector with a top panel by a bottom panel, four facade plates and to constitute silencer box integral body, each length of side of this silencer box or the big I of volume are made according to actual needs, present embodiment specifically be of a size of 2m (length) * 2m (wide) * 2m (height).It comprises sound insulation module 1, H shaped steel connector 2, vibration isolator support 3, vibration isolator 4, decorates skirtboard 5, C shaped steel connector 6, corner post steel fastener 7, doorframe module 8, soundproof door 9, F shaped steel connector 10, angle-steel connector 11, bar shaped sound-absorbing material 12 and traversing carriage 13.Its bottom panel, facade plate and top panel are pegged graft by sound insulation module 1 and H shaped steel connector 2 respectively and are formed, and the facade plate of a 2*2m for example can be plugged on the H shaped steel connector from both sides by the sound insulation module of two 1*2m and constitute.
As shown in Figure 2, sound insulation module 1 is welded by the hexahedron metallic plate, and its four limit is a C type groove, and inside is filled with damping glue-line 101, sound insulating material layer 102 and sound-absorbing material layer 103 successively.In the present embodiment, metallic plate is the thick steel plate of 1.5mm, damping layer is commercially available damping glue, sound insulating material is three layers of commercially available damping sheet plate, sound-absorbing material layer is that 50mm protects mineral wool, the gross thickness of sound insulation module is 100mm, and its four limit is that C type groove is in order to plug back filling bar shaped sound-absorbing material 12, the fixedly employing tapping screw 22 of sound insulation module and H shaped steel connector with various connectors.
As Fig. 1, Fig. 3, shown in Figure 4, bottom panel is fixedly mounted on the vibration isolator support 3 that is welded by channel-section steel, vibration isolator support 3 is fixedly mounted on the vibration isolator array that is made of a plurality of vibration isolators 4, and vibration isolator is spring vibration isolation device or rubber shock absorber or spring and building rubber compound vibration isolator.Present embodiment calculates according to load 25 rubber shock absorbers is installed altogether, and is divided into 5 rows, 5 of every rows.Rubber shock absorber be shaped as circular platform type, above little, the bottom surface is big, there is a vibration isolation cavity and a fixing hole from top to bottom the centre, bolt is passed down through vibration isolator from the vibration isolator support that channel-section steel is welded, and fixes with nut.
As shown in Figure 5, vibration isolator 4 can be spring and plate building rubber compound vibration isolator, the spring vibration isolation device is made of upper bracket 401, lower carriage 402 and spring 403, spring is arranged between the upper and lower support, can produce displacement according to the situation of load and vibrations, the cross section of support is for circular and be provided with and install and fix the hole.The rubber shock absorber of this moment is plate rubber shock absorber 404, and its cross section be a square and more than or equal to the floor space of spring vibration isolation device, is connected in series so that both are upper and lower, and its height can be definite according to the vibration isolation needs.Spring and building rubber compound vibration isolator generally are used for the bigger occasion of earth shock noise.
As Fig. 1, Fig. 2, shown in Figure 3, with the example that is installed as of facade plate and bottom panel, decorate the edge that skirtboard 5 is installed in bottom panel, in order to vibration isolation with block the C type groove of sound insulation module edge, improve and insulate against sound and aesthetic.C shaped steel connector 6 usefulness self threading pins are screwed onto the upper surface of bottom panel edge, and four facade plates vertically are plugged in the C type groove of C shaped steel connector 6, and the corner of adjacent facade plate is linked to each other by screw through corner post steel fastener 7 respectively.Doorframe module 8 is arranged in the facade plate by H shaped steel connector 2, and soundproof door 9 is installed in the doorframe module 8 through hinge.
As Fig. 1, shown in Figure 6, the example that is installed as with facade plate and top panel, the notch of F shaped steel connector 10 snaps onto the upper end of facade plate down, top panel is installed on the F shaped steel connector 10 of facade plate and with it and is screwed onto, the self threading pin of this moment is beaten to top panel from F shaped steel connector, in order to top panel and facade plate are fixed.Angle-steel connector 11 is fixedly connected on the seam crossing of top panel and facade plate, in order to block the slit and firmly to be connected top panel and facade plate from outer surface.Four drift angles of top panel are fixed with a metallic plate cornerite 14 respectively, and the shape of this metal angle bead is similar to the cornerite of case and bag.
As shown in Figure 8; metal sound absorbing module 15 is installed in bottom panel through fixture; the facade plate; the inner surface of top panel and soundproof door. metal sound absorbing module 15 is made by perforated metal panel warp-wise concave edge; inside is filled with sound-absorbing material layer 103 and protective film 151. for silencer box; it is not enough that sound insulation is only arranged; the inner surface of silencer box can produce reflection to noise; thereby influencing measurement effect. the thickness of present embodiment metal sound absorbing module is 50mm; width 350mm; height is corresponding with the height of silencer box; the metal sound absorbing module by 0.8mm steel plate four limits inwards crimp form; it is the perforation of 2.5mm that there is diameter in even branch; punching rate is 20%; the sound-absorbing material that present embodiment is filled is a mineral wool, and protective film is the PVC film, and purpose is moistureproof and prevents that the glass staple is excessive.
As shown in figure 10, the crack between a door and its frame of doorframe module 8 and soundproof door 9 periphery place is staggered to be equipped with a dovetail type metal draw-in groove 16, is inlaid with a magnetic sealing strip 17 in this metal draw-in groove.Doorframe module 8 is identical with the thickness of sound insulation module 1, is connected on the facade plate by H shaped steel connector, and magnetic sealing strip is inhaled mutually with the soundproof door door leaf on the doorframe module, magnetic sealing strip on the soundproof door door leaf is inhaled mutually with the doorframe module, its principle is similar to refrigerator, and sealing is tight, and switch is light.
As Fig. 3, Fig. 6, shown in Figure 7, be respectively equipped with bar shaped sound-absorbing material 12 in the C type groove of H shaped steel connector 2, C shaped steel connector 6, corner post steel fastener 7 and F shaped steel connector 10.This bar shaped sound-absorbing material is that make on bar shaped mineral wool or rock wool or sea.The employed bar shaped sound-absorbing material of present embodiment is the environmental protection mineral wool.Its effect be when noise pass module and module be connected the slit time not only can prolong the sound transmission path distance, and most ofly absorbed by sound-absorbing material.
As shown in Figure 9, traversing carriage 13 is fixed on the bottom panel.Traversing carriage 13 is by steel bracket 131, slide rail 132, slide block 133, workbench 134, locator 135 and shake hands 136 to constitute, the steel bracket 131 that angle steel is welded is fixed on the bottom panel, two row slide rails 132 are fixed on the steel bracket through sliding rail rack, four slide blocks 133 are slidingly connected with slide rail, workbench 134 is screwed onto on the slide block, the locator 135 and 136 bottom panel and the fronts that are installed on workbench respectively of shaking hands.The purposes of workbench is to put measured object for convenience, and locator is to locate in order to be movable workbench to the center position of silencer box, and handle is used to pull out or push workbench, and when measuring mobile phone, the dummy head who places mobile phone will be fixed on the workbench.
As shown in figure 11, an one air intake muffler 16 and an air draft muffler 17 are installed on top panel or the facade plate, the air channel shape of air intake muffler or air draft muffler is respectively linear pattern or turning type or U font, and its port is equipped with a quiet case 18, in this quiet case 18 blower fan 19 is installed.When survey crew need rest in the silencer box or tested article need to ventilate, during heat radiation, need to install compound ventilation air-changing device, because silencer box is the casing of good seal, only there is an air port not enough, need an air inlet and an exhaust outlet, and need on arbitrary air channel, blower fan be installed, the purpose that quiet case and muffler are installed is in order to reduce the noise that external environment condition is imported into, reduce fan noise and pneumatic noise, what present embodiment used is that sectional area is 500*400mm, length is 1500mm linear pattern muffler, can also be according to the size of silencer box, the condition of installing space changes over turning type or U font with muffler.The setting in air port is generally the diagonal setting in the silencer box, can make best that new wind or cold air circulates in case like this.
As shown in Figure 1, on sound insulation module 1 or the soundproof door 9 sound proof window 20 is installed, this sound proof window is a double-decker, and constituted by alloy window frame, rubber seal tape, metal sound absorption liner plate and double-deck toughened glass, the exterior notch of alloy window frame is connected in the window opening on sound insulation module or the soundproof door, and the both sides of rubber seal tape are C type groove, on one side C type groove and the clamping of alloy window frame, another side C type groove and glass clamping, metal sound absorption liner plate are fixed on the alloy window frame between the double glazing.Sound proof window can be installed on the sound insulation module, also can install on the soundproof door, and layer glass is the thick toughened glass of 6mm, and the metal sound absorption liner plate of slit between the double glazing and periphery can play good noise reduction effect.
As shown in Figure 1, under the situation that does not need sound proof window, perhaps need certain position in the case is monitored in detail, can one monitor 21 be installed at the outer surface of facade plate, this monitor links to each other with the supervision probe that is installed on the silencer box inner surface by video line, under the irradiation of light, can be clear that the position that needs monitoring.
Because the utility model is a splicing structure, can be customized according to the size of customer requirements, be convenient to produce, carry and install, also be convenient to dismantle the strange land, back and re-assembly, be user's cost saving.Again because the utility model vibration isolation, sound insulation, sealing, ventilation, operation and supervision are effective, specious, sturdy and durable, therefore can be widely used in the acoustic measurement of electronics such as mobile phone, Mike, earphone, hearing aids or engineering goods.
Claims (9)
1. assembled metal silencer box, comprise bottom panel, facade plate and top panel, a bottom panel, four facade plates and a top panel are fixed together, and it is characterized in that: also comprise sound insulation module (1), H shaped steel connector (2), vibration isolator support (3), vibration isolator (4), decorate skirtboard (5), C shaped steel connector (6), corner post steel fastener (7), doorframe module (8), soundproof door (9), F shaped steel connector (10), angle-steel connector (11), bar shaped sound-absorbing material (12), traversing carriage (13), metal sound absorbing module (15); Described bottom panel, facade plate and top panel are pegged graft by sound insulation module (1) and H shaped steel connector (2) respectively and are formed; Bottom panel is fixedly mounted on the vibration isolator support (3), vibration isolator support (3) is fixedly mounted on the vibration isolator array that is made of a plurality of vibration isolators (4), decorate the edge that skirtboard (5) is installed in bottom panel, C shaped steel connector (6) is screwed onto the upper surface of bottom panel edge, four facade plates vertically are plugged in the C type groove of C shaped steel connector (6), the corner of adjacent facade plate is linked to each other by screw through corner post steel fastener (7) respectively, doorframe module (8) is arranged in the facade plate by H shaped steel connector (2), soundproof door (9) is installed in the doorframe module (8) through hinge, F shaped steel connector (10) snaps onto the upper end of facade plate, top panel is installed on the F shaped steel connector (10) of facade plate, and be screwed onto with it, angle-steel connector (11) is fixedly connected on the seam crossing of top panel and facade plate, four drift angles of top panel are fixed with a metallic plate cornerite (14) respectively, metal sound absorbing module (15) is installed in bottom panel through fixture, the facade plate, the inner surface of top panel and soundproof door, traversing carriage (13) is fixed on the bottom panel; Be respectively equipped with bar shaped sound-absorbing material (12) in the C type groove of described H shaped steel connector (2), C shaped steel connector (6), corner post steel fastener (7) and F shaped steel connector (10).
2. assembled metal silencer box according to claim 1, it is characterized in that: described sound insulation module (1) is welded by the hexahedron metallic plate, its four limit is a C type groove, and inside is filled with damping glue-line (101), sound insulating material layer (102) and sound-absorbing material layer (103) successively.
3. assembled metal silencer box according to claim 1 is characterized in that: described vibration isolator (4) is spring vibration isolation device or rubber shock absorber or spring and plate building rubber compound vibration isolator.
4. assembled metal silencer box according to claim 1, it is characterized in that: the crack between a door and its frame periphery place of described doorframe module (8) and described soundproof door (9) is staggered to be equipped with a dovetail type metal draw-in groove (16), is inlaid with a magnetic sealing strip (17) in this metal draw-in groove.
5. assembled metal silencer box according to claim 1, it is characterized in that: described traversing carriage (13) is made of steel bracket (131), slide rail (132), slide block (133), workbench (134), locator (135) and handle (136), steel bracket (131) is fixed on the bottom panel, two row slide rails (132) are fixed on the steel bracket through sliding rail rack, slide block (133) is slidingly connected with slide rail, workbench (134) is screwed onto on the slide block, and locator (135) and handle (136) are installed on the bottom panel and the front of workbench respectively.
6. assembled metal silencer box according to claim 1 is characterized in that: described metal sound absorbing module (15) is made by perforated metal panel warp-wise concave edge, and inside is filled with sound-absorbing material layer (103) and protective film (151).
7. assembled metal silencer box according to claim 1, it is characterized in that: an air intake muffler (16) and an air draft muffler (17) are installed on described top panel or the facade plate, its port is equipped with a quiet case (18), and a blower fan (19) is installed in the quiet case.
8. assembled metal silencer box according to claim 1 is characterized in that: on described sound insulation module (1) or the soundproof door (9) sound proof window (20) is installed.
9. assembled metal silencer box according to claim 1 is characterized in that: the outer surface of described facade plate is equipped with a monitor (21), and this monitor links to each other with a supervision probe that is installed on inner surface by video line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201083025U CN201467447U (en) | 2009-05-31 | 2009-05-31 | Assembled metallic silence chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201083025U CN201467447U (en) | 2009-05-31 | 2009-05-31 | Assembled metallic silence chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201467447U true CN201467447U (en) | 2010-05-12 |
Family
ID=42394793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201083025U Expired - Fee Related CN201467447U (en) | 2009-05-31 | 2009-05-31 | Assembled metallic silence chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201467447U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623003A (en) * | 2012-02-28 | 2012-08-01 | 苏州岸肯电子科技有限公司 | Drawing plate of anechoic chamber |
| CN103742228A (en) * | 2013-12-17 | 2014-04-23 | 抚顺博宇噪声控制技术开发有限公司 | Portable damping board silencer |
| CN105747927A (en) * | 2016-03-07 | 2016-07-13 | 南京航空航天大学 | Multifunctional small appliance protection and noise insulation device |
| CN108005243A (en) * | 2017-11-02 | 2018-05-08 | 广州筑美辐射防护科技有限公司 | Anti- ionization radiant wall plate and screened room |
| GR1010086B (en) * | 2020-11-10 | 2021-09-24 | Λαυρεντιος Θεοκλητου Τριανταφυλλιδης | Anti-seismic articulated self-supporting system of panels |
-
2009
- 2009-05-31 CN CN2009201083025U patent/CN201467447U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623003A (en) * | 2012-02-28 | 2012-08-01 | 苏州岸肯电子科技有限公司 | Drawing plate of anechoic chamber |
| CN103742228A (en) * | 2013-12-17 | 2014-04-23 | 抚顺博宇噪声控制技术开发有限公司 | Portable damping board silencer |
| CN105747927A (en) * | 2016-03-07 | 2016-07-13 | 南京航空航天大学 | Multifunctional small appliance protection and noise insulation device |
| CN105747927B (en) * | 2016-03-07 | 2018-06-29 | 南京航空航天大学 | A kind of multi-functional small household appliances protection and noise isolating device |
| CN108005243A (en) * | 2017-11-02 | 2018-05-08 | 广州筑美辐射防护科技有限公司 | Anti- ionization radiant wall plate and screened room |
| GR1010086B (en) * | 2020-11-10 | 2021-09-24 | Λαυρεντιος Θεοκλητου Τριανταφυλλιδης | Anti-seismic articulated self-supporting system of panels |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101575881B (en) | Assembled metal sound insulation chamber | |
| CN201467447U (en) | Assembled metallic silence chamber | |
| US8782977B2 (en) | Interior wall cap for use with an exterior wall of a building structure | |
| CA2824529C (en) | Interior wall cap for use with an exterior wall of a building structure | |
| CN201459942U (en) | Assembled metallic soundproof chamber | |
| CN201514759U (en) | Assembled metal acoustic shield | |
| CN203296435U (en) | Silencing room | |
| CN202611503U (en) | Muting room sound proof window | |
| JP2018087424A (en) | Panel unit and curtain wall equipped with the same | |
| CN103397712B (en) | Anechoic room transmission shaft sound-insulating structure | |
| CN204791946U (en) | Motion sound source acoustical absorption and sound insulation device reaches by its frequency division acoustical absorption and sound insulation who constitutes cover | |
| CN216195742U (en) | Assembled partition wall structure | |
| CN108005272B (en) | Plate combined double-layer glass sound insulation partition | |
| CA2835794C (en) | Interior wall cap for use with an exterior wall of a building structure | |
| CN107620413B (en) | Full exposed frame glass curtain wall | |
| CN205259679U (en) | Soundproof and heat resistant room | |
| KR102528308B1 (en) | Sound-absorbing soundproof panel with transparent plate | |
| JP4690253B2 (en) | Low frequency sound absorbing material and transformer soundproofing system using the same | |
| CN216616339U (en) | Noise pollution treatment device for house | |
| CN104674687A (en) | Sound absorption and load reduction sound barrier unit and sound barrier thereof | |
| CN217439889U (en) | Sound insulation door | |
| CN204531969U (en) | A kind of bridge cut-off sound insulation alumium alloy door and window | |
| CN210976188U (en) | Sound insulation wall in dust-free workshop | |
| CN215442599U (en) | Prefabricated formula side fascia horizontal joint is in beam department connected node structure | |
| CN219343751U (en) | Sound-absorbing fireproof color steel sandwich board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20130531 |