CN211294620U - Silencing sheet with sound insulation performance - Google Patents
Silencing sheet with sound insulation performance Download PDFInfo
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- CN211294620U CN211294620U CN201922280187.6U CN201922280187U CN211294620U CN 211294620 U CN211294620 U CN 211294620U CN 201922280187 U CN201922280187 U CN 201922280187U CN 211294620 U CN211294620 U CN 211294620U
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Abstract
The utility model discloses a silencing sheet with sound insulation performance, which comprises an outer frame, wherein a cavity is arranged in the outer frame, sound-absorbing cotton is arranged on the inner wall at the top end of the cavity and the inner wall at the bottom of the cavity, a silencing mechanism is arranged between the sound-absorbing cotton and fixed on the inner wall of the cavity through sealant, an opening is arranged on one side of the outer frame, clamping grooves are arranged on two sides of the opening, a cover plate is arranged outside the opening, clamping strips are arranged on the cover plate and the clamping grooves correspondingly, through the arranged first through holes, sound waves enter the cavity of the outer frame through the first through holes, and the sound waves are partially absorbed under the action of the sound-absorbing cotton, so that a certain sound absorption effect is achieved, and through the arranged inclined plates, the sound waves are refracted downwards in sequence, so that the sound waves are gradually weakened in the process of refraction, thereby achieving a, through the second through hole, the sound wave can enter the inner cavity of the inclined plate through the second through hole.
Description
Technical Field
The utility model relates to an anechoic sheet technical field specifically is an anechoic sheet that has sound insulation performance concurrently.
Background
The sound absorption material is a material for controlling noise and improving environmental tone quality, and the structure of the sound absorption material can be divided into two major types, namely porous sound absorption structure and resonant sound absorption structure according to the difference of sound absorption mechanisms.
When the existing silencing sheet is used, because the main body of the silencing sheet is of a steel plate structure, the inner silencing mechanism of the silencing sheet is inconvenient to overhaul and replace, in addition, a frame is formed by a perforated veneer of the common silencing sheet, sound absorption cotton is filled in the frame, and a good medium-high frequency noise control effect is realized by utilizing a resistive sound absorption mechanism, but the sound absorption wavelength range is narrow, and the good sound absorption effect cannot be realized.
Disclosure of Invention
An object of the utility model is to provide a have noise reduction piece of sound insulation performance concurrently to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a have noise elimination piece of sound insulation performance concurrently, includes the frame, the inside cavity that is provided with of frame, cavity top inner wall all is provided with the bottom inner wall and inhales the sound cotton, two it is provided with noise elimination mechanism to inhale between the sound cotton, noise elimination mechanism is fixed in the cavity inner wall through sealed glue.
As a further aspect of the present invention: frame one side is provided with the opening, the opening both sides all are provided with the draw-in groove, the opening outside is provided with the apron, the apron corresponds with the draw-in groove and is provided with the card strip, the size of card strip is identical with the size of draw-in groove, the apron passes through screw and frame lateral wall fixed connection, and is identical with the size of draw-in groove through setting up the card strip to under the effect of screw, make the apron closely fixed together with the frame, played fine sealed effect, can effectually prevent to get into and spill in the inside sound wave of frame passes through the gap that apron and frame are connected, thereby played the effect of fine isolated noise, simultaneously, be detachable construction through the apron, be convenient for overhaul and change the inside noise elimination mechanism of frame, thereby practiced thrift the cost.
As a further aspect of the present invention: the frame lateral wall is provided with first through-hole, first through-hole is linked together with the cavity, through the first through-hole that sets up for the sound wave passes through first through-hole and gets into in the cavity of frame, and under the cotton effect of sound absorption, carries out partial absorption to the sound wave, thereby plays certain sound absorption effect.
As a further aspect of the present invention: the silencing mechanism comprises a silencing frame, wherein the inner wall of the silencing frame is provided with inclined plates which are uniformly distributed at equal intervals, and the sound waves are sequentially refracted downwards through the arranged inclined plates, so that the sound waves are gradually weakened in the refracting process, and a good silencing effect is achieved.
As a further aspect of the present invention: the inclined plate is internally provided with a cavity, and the cavity is internally filled with high-temperature-resistant soundproof cotton rock wool.
As a further aspect of the present invention: the hang plate upper surface all is provided with the second through-hole with the lower surface, the second through-hole is linked together with the cavity, through the second through-hole that sets up for the sound wave can get into the inner chamber of hang plate through the second through-hole, and under high temperature resistant soundproof cotton rock wool's effect, makes noise cancelling effect better, and under the effect of second through-hole, makes the sound wave downwards propagated once more, thereby makes the energy of sound wave weakened greatly, has improved noise cancelling effect.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the size of the clamping strip and the clamping groove is matched, the cover plate is fixed with the outer frame tightly under the action of the screw, a good sealing effect is achieved, the sound wave inside the outer frame can be effectively prevented from leaking out of a gap where the cover plate and the outer frame are connected, a good noise isolating effect is achieved, meanwhile, the cover plate is of a detachable structure, the noise eliminating mechanism inside the outer frame can be conveniently overhauled and replaced, and cost is saved.
2. Through the first through-hole that sets up, make the sound wave pass through in the cavity of first through-hole entering frame, and under the cotton effect of sound absorption, carry out partial absorption to the sound wave, thereby play certain sound absorption effect, through the hang plate that sets up, make the sound wave by refraction downwards in proper order, make the sound wave weakened gradually at the in-process of refraction, thereby fine noise cancelling effect has been played, through the second through-hole that sets up, make the sound wave can pass through the inner chamber that the second through-hole got into the hang plate, and under the effect of high temperature resistant soundproof cotton rock wool, make noise cancelling effect better, and under the effect of second through-hole, make the sound wave by downstream once more, thereby make the energy of sound wave weakened greatly, noise cancelling effect has been improved.
Drawings
Fig. 1 is a schematic structural view of an anechoic sheet with sound insulation performance.
Fig. 2 is a schematic structural diagram of a cavity in an anti-noise sheet with sound insulation performance.
Fig. 3 is a schematic structural diagram of a silencing mechanism in a silencing sheet with sound insulation performance.
Fig. 4 is a schematic structural view of an inclined plate in an anti-noise sheet with sound insulation performance.
In the figure: 1. an outer frame; 2. a cavity; 3. a cover plate; 4. a card slot; 5. clamping the strip; 6. a first through hole; 7. sound-absorbing cotton; 8. a noise elimination mechanism; 9. a silencing frame; 10. an inclined plate; 11. a second through hole; 12. high temperature resistant soundproof cotton rock wool.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, in the embodiment of the present invention, a noise reduction sheet with sound insulation performance includes a frame 1, a cavity 2 is provided inside the frame 1, the top inner wall and the bottom inner wall of the cavity 2 are provided with sound absorption cotton 7, two noise reduction mechanisms 8 are provided between the sound absorption cotton 7, and the noise reduction mechanisms 8 are fixed on the inner wall of the cavity 2 through sealant.
When the silencer is used, the silencing mechanism 8 is arranged inside the outer frame 1 through the arranged cavity 2 and is fixed through the sealant.
The improved structure of the LED lamp is characterized in that an opening is formed in one side of the outer frame 1, clamping grooves 4 are formed in two sides of the opening, a cover plate 3 is arranged on the outer side of the opening, clamping strips 5 are arranged on the cover plate 3 and the clamping grooves 4 correspondingly, the size of each clamping strip 5 is identical to that of each clamping groove 4, and the cover plate 3 is fixedly connected with the side wall of the outer frame 1 through screws.
The size through setting up card strip 5 and draw-in groove 4 is identical, and under the effect of screw, make apron 3 and frame 1 inseparable fixed together, fine sealed effect has been played, can effectually prevent to get into and spill in the gap that 1 inside sound wave of frame is connected through apron 3 and frame, thereby fine isolated noise's effect has been played, and simultaneously, be detachable construction through apron 3, be convenient for overhaul and change 1 inside noise elimination mechanism 8 of frame, thereby the cost is practiced thrift.
The side wall of the outer frame 1 is provided with a first through hole 6, and the first through hole 6 is communicated with the cavity 2.
Through the first through-hole 6 that sets up for the sound wave passes through first through-hole 6 and gets into in the cavity 2 of frame 1, and under the effect of inhaling sound cotton 7, carries out partial absorption to the sound wave, thereby plays certain sound absorption effect.
The noise elimination mechanism 8 comprises a noise elimination frame 9, and inclined plates 10 which are uniformly distributed at equal intervals are arranged on the inner wall of the noise elimination frame 9.
Through the inclined plate 10, the sound waves are refracted downwards in sequence, the sound waves are gradually weakened in the refracting process, and a good noise elimination effect is achieved.
The inclined plate 10 is internally provided with a cavity, and the cavity is internally filled with high-temperature-resistant soundproof cotton rock wool 12.
The upper surface and the lower surface of the inclined plate 10 are both provided with second through holes 11, and the second through holes 11 are communicated with the cavity.
Through the second through-hole 11 that sets up for the sound wave can get into the inner chamber of hang plate 10 through second through-hole 11, and under high temperature resistant soundproof cotton rock wool 12's effect, make the noise cancelling effect better, and under the effect of second through-hole 11, make the sound wave downward propagation once more, thereby make the energy of sound wave weakened greatly, improved noise cancelling effect.
The utility model discloses a theory of operation is:
through setting up the card strip 5 and the size of the draw-in groove 4 is identical, and under the effect of screw, make the blind flange 3 and frame 1 be inseparable fixed together, play a very good sealed effect, can prevent effectively that the sound wave that gets into the inside of frame 1 from leaking through the gap that blind flange 3 and frame 1 are connected, thus play a very good effect of isolating the noise, meanwhile, through the detachable construction of blind flange 3, it is convenient for overhaul and change the noise elimination mechanism 8 inside frame 1, thus save the cost, through the first through-hole 6 that sets up, make the sound wave get into the cavity 2 of frame 1 through the first through-hole 6, and under the effect of the sound absorption cotton 7, carry on the partial absorption to the sound wave, thus play certain sound absorption effect, through the tilted plate 10 that sets up, make the sound wave be refracted downwards in proper order, make the sound wave weaken gradually in the course of refracting, thereby fine noise elimination effect has been played, through the second through-hole 11 that sets up for the sound wave can get into the inner chamber of hang plate 10 through second through-hole 11, and under high temperature resistant soundproof cotton rock wool 12's effect, make noise elimination better, and under the effect of second through-hole 11, make the sound wave by downstream once more, thereby make the energy of sound wave weakened greatly, improved noise elimination effect.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a have noise elimination piece of sound insulation performance concurrently, includes frame (1), its characterized in that, frame (1) inside is provided with cavity (2), cavity (2) top inner wall all is provided with the bottom inner wall and inhales sound cotton (7), two it is provided with noise elimination mechanism (8) to inhale between sound cotton (7), noise elimination mechanism (8) are fixed in cavity (2) inner wall through sealed glue.
2. The silencing sheet with the sound insulation performance as claimed in claim 1, wherein an opening is formed in one side of the outer frame (1), clamping grooves (4) are formed in two sides of the opening, a cover plate (3) is arranged outside the opening, clamping strips (5) are arranged on the cover plate (3) and the clamping grooves (4) correspondingly, the size of each clamping strip (5) is matched with that of each clamping groove (4), and the cover plate (3) is fixedly connected with the side wall of the outer frame (1) through screws.
3. The silencing sheet with the sound insulation performance as recited in claim 1, wherein the side wall of the outer frame (1) is provided with a first through hole (6), and the first through hole (6) is communicated with the cavity (2).
4. The silencing sheet with the sound insulation performance as recited in claim 1, wherein the silencing mechanism (8) comprises a silencing frame (9), and the inner wall of the silencing frame (9) is provided with inclined plates (10) which are uniformly distributed at equal intervals.
5. The silencing sheet with the sound insulation performance according to claim 4, wherein a cavity is arranged inside the inclined plate (10), and the cavity is filled with high-temperature-resistant soundproof cotton rock wool (12).
6. The silencing sheet with the sound insulation performance as recited in claim 4, wherein the inclined plate (10) is provided with a second through hole (11) on both the upper surface and the lower surface, and the second through hole (11) is communicated with the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922280187.6U CN211294620U (en) | 2019-12-18 | 2019-12-18 | Silencing sheet with sound insulation performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922280187.6U CN211294620U (en) | 2019-12-18 | 2019-12-18 | Silencing sheet with sound insulation performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211294620U true CN211294620U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922280187.6U Active CN211294620U (en) | 2019-12-18 | 2019-12-18 | Silencing sheet with sound insulation performance |
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| Country | Link |
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| CN (1) | CN211294620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113963920A (en) * | 2021-11-04 | 2022-01-21 | 广东电网有限责任公司 | Noise reduction plate and transformation box |
-
2019
- 2019-12-18 CN CN201922280187.6U patent/CN211294620U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113963920A (en) * | 2021-11-04 | 2022-01-21 | 广东电网有限责任公司 | Noise reduction plate and transformation box |
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