CN113954463A

CN113954463A - Sound insulation type composite board

Info

Publication number: CN113954463A
Application number: CN202111124888.6A
Authority: CN
Inventors: 徐炀; 钱龙
Original assignee: Zhangjiagang Feiteng Composite New Material Co Ltd
Current assignee: Zhangjiagang Feiteng Composite New Material Co Ltd
Priority date: 2021-09-25
Filing date: 2021-09-25
Publication date: 2022-01-21
Anticipated expiration: 2041-09-25
Also published as: CN113954463B

Abstract

The application relates to a sound insulation type composite board, which relates to the technical field of composite boards and comprises a sound insulation board, a first sealing board and a second sealing board; the sound insulation plate is arranged between the first sealing plate and the second sealing plate; the lateral wall of first shrouding is provided with around the acoustic celotex board periphery and keeps apart the bounding wall, keep apart the bounding wall and support tightly in the lateral wall of second shrouding towards first shrouding, just keep apart bounding wall and second shrouding fixed connection. This application has the phenomenon that effectively reduces foreign object and acoustic celotex board contact and cause the influence, can ensure the effect of the sound-insulating properties after the composite sheet is used for a long time.

Description

Sound insulation type composite board

Technical Field

The application relates to the technical field of composite boards, in particular to a sound insulation type composite board.

Background

The composite board is a board body formed by assembling different boards with different functions. The composite board is mostly used for architectural decoration, and has multiple functions of sound insulation, flame retardance, decoration and the like according to different functions of the board.

Chinese patent publication No. CN202248346U discloses a sound-insulating composite board, which comprises a gypsum board layer and a sound-insulating layer. The puigging glues admittedly in gypsum board layer one side, and the one side that gypsum board layer was kept away from to the puigging still is provided with inhales the sound buffer layer, inhales the sound buffer layer including inhaling the sound bed course and inhaling the sound board layer. Inhale the sound bed course and can be the mineral wool bed course, the abatvoix layer can be the cotton layer of centrifugal glass, inhale the sound bed course and glue admittedly in inhaling between sound sheet layer and the puigging, inhale and be provided with a plurality of sound holes of inhaling on the sound sheet layer.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the direct exposure of syllable-dividing sheet layer lacks the protection in the air, and in the application of composite sheet, syllable-dividing sheet layer easily with foreign object direct contact and impaired, and then has influenced the syllable-dividing effect of composite sheet.

Disclosure of Invention

In order to improve the problem that the acoustic panel of composite sheet lacks the protection, this application provides a type composite sheet gives sound insulation.

The application provides a type that gives sound insulation composite sheet adopts following technical scheme:

a sound insulation type composite board comprises a sound insulation board, a first sealing board and a second sealing board; the sound insulation plate is arranged between the first sealing plate and the second sealing plate; the lateral wall of first shrouding is provided with around the acoustic celotex board periphery and keeps apart the bounding wall, keep apart the bounding wall and support tightly in the lateral wall of second shrouding towards first shrouding, just keep apart bounding wall and second shrouding fixed connection.

By adopting the technical scheme, the first sealing plate and the second sealing plate are high in strength and strong in compression resistance, and after the sound insulation plate is fixed between the first sealing plate and the second sealing plate, damage caused by direct impact of foreign objects can be effectively reduced, so that the sound insulation effect is reduced; in addition, the first sealing plate and the second sealing plate can effectively isolate water vapor molecules, so that the dryness of the sound insulation plate is guaranteed, and the sound insulation effect of the sound insulation plate after long-time application is guaranteed; in addition, the isolation bounding wall protects the acoustic celotex board between first shrouding and second shrouding for the acoustic celotex board is protected in the cavity of first shrouding, second shrouding and the common formation of isolation bounding wall, has effectively reduced the phenomenon of foreign object and acoustic celotex board contact, has improved the application stability of acoustic celotex board, has ensured the syllable-dividing effect of composite sheet.

Preferably, the first sealing plate is fixed with the sound insulation plate by gluing; the lateral wall that first shrouding was kept away from to the acoustic celotex board and the lateral wall coplane that first shrouding was kept away from to the isolation bounding wall, the second shrouding is fixed with acoustic celotex board and isolation bounding wall gluing simultaneously.

By adopting the technical scheme, the sound insulation board is bonded with the first sealing board, the second sealing board and the isolation enclosing board, the position stability in the cavity defined by the first sealing board, the second sealing board and the isolation enclosing board is high, and the phenomena of loosening and shaking and deflection are not easy to occur, so that the gaps among the sound insulation board, the first sealing board, the second sealing board and the isolation enclosing board are reduced, the phenomenon that noise penetrates through the composite board is reduced, and the sound insulation effect of the composite board is ensured; the second sealing plate fixed by gluing is tightly connected with the isolation surrounding plate, so that the position stability and the application stability of the sound insulation plate are further improved.

Preferably, the acoustic celotex board can be dismantled and set up between first shrouding and second shrouding, be provided with coupling assembling between isolation bounding wall and the second shrouding, coupling assembling is used for fixed connection isolation bounding wall and second shrouding.

Through adopting above-mentioned technical scheme, coupling assembling makes the second shrouding be connected for dismantling with the isolation bounding wall, the quick fixed connection second shrouding of the operating personnel of both being convenient for and isolation bounding wall, and the operating personnel of being convenient for again is through dismantling the second shrouding to dismantle the acoustic celotex board that uses for a long time, with the maintenance or renew, ensured the diaphragm after the composite sheet uses for a long time and responded to the performance.

Preferably, the connecting assembly comprises a positioning screw rod and a locking nut; the positioning screw rod is arranged on the side wall of the isolation enclosing plate, which is far away from the first sealing plate, and the second sealing plate is provided with a through hole for the positioning screw rod to abut into; the lateral wall of the second sealing plate far away from the first sealing plate is provided with a step groove around the periphery of the through hole, the locking nut is in threaded fit on the positioning screw rod, and the locking nut is located in the step groove.

By adopting the technical scheme, after the positioning screw rod is abutted into the inner cavity of the through-connection hole, the position of the second sealing plate relative to the isolation coaming is limited, and the phenomena of loosening and swinging of the second sealing plate relative to the isolation coaming are reduced; after the locking nut is screwed on the positioning screw rod in a threaded manner, the second sealing plate and the isolation coaming are quickly and fixedly connected into a whole, and meanwhile, an operator can conveniently and quickly detach the second sealing plate to detach the sound insulation plate and maintain and replace the sound insulation plate; the stepped groove is used for accommodating the locking nut so as to reduce the phenomenon that the locking nut protrudes out of the second sealing plate, and the composite plate is convenient to apply and mount.

Preferably, a tight-abutting assembly is arranged between the first sealing plate and the sound insulation plate, and the tight-abutting assembly comprises a bearing plate and a plurality of compression springs; all compression spring is located the lateral wall of first shrouding orientation acoustic celotex board, it is located all to accept the board one end of compression spring orientation acoustic celotex board.

Through adopting above-mentioned technical scheme, after the acoustic celotex board supported isolation bounding wall inner chamber, compression spring atress compression, along with the second shrouding supports tightly in the lateral wall that keeps away from first shrouding of isolation bounding wall, the elastic force that produces during the compression of compression spring can react to the acoustic celotex board for the acoustic celotex board supports tightly in accepting between board and the second shrouding, has ensured the positional stability and the application stability of acoustic celotex board in the cavity that first shrouding, second shrouding and isolation bounding wall formed jointly.

Preferably, the abutting assembly further comprises a plurality of groups of bundling pieces for positioning the sound insulation board on the bearing board.

By adopting the technical scheme, the bundling piece is used for quickly fixing the sound insulation board on the side wall of the bearing board far away from the first sealing board so as to reduce the phenomenon that the sound insulation board is separated from the bearing board or moves on the bearing board; after the position of acoustic celotex board was accepted the board relatively and is injectd, the operating personnel of being convenient for further fixed acoustic celotex board and isolation bounding wall to the operating personnel fixed connection second shrouding and the isolation bounding wall of being convenient for have improved operating personnel's simple operation nature.

Preferably, each group of the bundling pieces comprises two elastic laces, a connecting male buckle and a connecting female buckle; the same end of the two elastic laces in the length direction is fixedly arranged on the side wall of the bearing plate facing the sound insulation plate, two abdicating holes are arranged on the sound insulation plate in a penetrating manner, and one elastic lace penetrates through one abdicating hole; the connecting sub-buckle is arranged on one elastic strap, the connecting female buckle is arranged on the other elastic strap, and the connecting sub-buckle and the connecting female buckle are buckled to enable one ends of the two elastic straps far away from the bearing plate to be fixedly connected.

By adopting the technical scheme, after the elastic laces pass through the abdicating holes, the connecting male buckle and the connecting female buckle are buckled, so that one ends of the two elastic laces far away from the bearing plate are fixedly connected; at this moment, the sound insulation board is sleeved in a cavity formed by the two elastic laces and the bearing plate, and the position of the sound insulation board on the bearing plate is limited.

Preferably, a limiting assembly is arranged between the isolation coaming and the sound insulation board, and comprises an elastic part and a butting block; the side wall of the isolation surrounding plate facing the sound insulation plate is provided with a plurality of preset grooves, one end of the elastic part is arranged in the preset grooves, and the abutting block is arranged at the other end of the elastic part; the lateral wall of the sound insulation board is provided with a clamping groove for the butting block to abut into.

By adopting the technical scheme, when the elastic part is in a contraction state, the abutting block is completely contracted in the inner cavity of the preset groove, and the sound insulation board can smoothly abut into the inner cavity of the isolation coaming or be separated from the inner cavity of the isolation coaming; when the elastic component was the free extension state, butt piece one end joint was in predetermineeing the inslot, and other end joint is in the joint inslot, and at this moment, the butt piece is connected simultaneously and is kept apart bounding wall and acoustic celotex board for the acoustic celotex board is positioned and is kept apart the bounding wall inner chamber, has ensured acoustic celotex board positional stability and application stability in keeping apart the bounding wall.

Preferably, a positioning block is arranged in the groove body of the preset groove, and the abutting block and the positioning block are magnetically attracted.

Through adopting above-mentioned technical scheme, the butt piece that offsets and locating piece magnetism attract mutually, have improved the butt intensity of butt piece in the joint inslot, have reduced the relative joint groove of butt piece and have appeared the phenomenon that the pine shakes, moves partially, have effectively ensured the positional stability and the application stability of acoustic celotex board.

Preferably, an operation hole is formed in the side wall, far away from the first sealing plate, of the isolation enclosing plate, and an inner cavity of the operation hole is communicated with an inner cavity of the preset groove; an extension plate is arranged on the abutting block, and one end, far away from the abutting block, of the extension plate is located in the operation hole.

By adopting the technical scheme, the extension plate is convenient for an operator to grab and then slide the abutting block, and when the abutting block slides towards the direction of the elastic piece, the abutting block can quickly move into the preset groove, so that the sound insulation plate can be abutted into the inner cavity of the isolation coaming conveniently; when the acoustic celotex board need be dismantled, the extension board of operating personnel slidable for the butt piece breaks away from the joint groove, so that the acoustic celotex board breaks away from and keeps apart bounding wall inner chamber.

In summary, the present application has the following beneficial technical effects:

1. the first sealing plate and the second sealing plate are high in strength and strong in pressure resistance, and after the sound insulation plate is fixed between the first sealing plate and the second sealing plate, damage caused by direct impact of foreign objects can be effectively reduced, and the sound insulation effect is further reduced; the isolation surrounding plate protects the sound insulation plate between the first sealing plate and the second sealing plate, so that the sound insulation plate is protected in a cavity formed by the first sealing plate, the second sealing plate and the isolation surrounding plate together, the phenomenon that foreign objects are in contact with the sound insulation plate is effectively reduced, the application stability of the sound insulation plate is improved, and the sound insulation effect of the composite plate is guaranteed;

2. after the location lead screw supported logical even hole inner chamber, had injectd the position of the relative isolation bounding wall of second shrouding, lock nut screwed up the back on location lead screw for the second shrouding is a whole with the quick fixed connection of isolation bounding wall, and the operating personnel of being convenient for simultaneously dismantles the second shrouding fast, in order to dismantle the acoustic celotex board and to the acoustic celotex board maintenance, renew, and then has ensured the sound insulation performance after the composite sheet uses for a long time.

Drawings

Fig. 1 is a schematic structural view of an acoustic insulation type composite panel according to example 1 of the present application;

FIG. 2 is an exploded view of the sound insulating panel in example 1 of the present application showing the connection relationship between the sound insulating panel and the first and second cover panels;

FIG. 3 is a schematic structural view of an acoustical composite panel according to example 2 of the present application;

FIG. 4 is an exploded view of the sound insulating panel in accordance with example 2 of the present application, showing the connection relationship between the sound insulating panel and the first and second cover panels;

FIG. 5 is a schematic view showing the positional relationship between the baffle and the baffle in example 2 of the present application;

FIG. 6 is a schematic sectional view taken along the line A-A;

FIG. 7 is an exploded perspective view of the acoustic baffle and the insulating shroud and the first sealing plate in example 2 of the present application;

FIG. 8 is a schematic sectional view taken along the direction B-B;

fig. 9 is an enlarged schematic view of a portion C in fig. 8.

Description of reference numerals:

1. a sound insulating board; 11. a hole of abdication; 12. an accommodating groove; 13. a clamping groove; 131. positioning blocks; 2. a first seal plate; 21. isolating the coaming; 211. presetting a groove; 212. an operation hole; 3. a second seal plate; 31. a through hole; 32. a step groove; 4. a propping component; 41. a compression spring; 42. a bearing plate; 43. a bundling member; 431. an elastic tie; 432. a connector buckle; 433. connecting the female buckle; 5. a limiting component; 51. an elastic member; 52. a butting block; 521. an extension plate; 6. a connecting assembly; 61. positioning a screw rod; 62. and locking the nut.

Detailed Description

The embodiment of the application discloses a sound insulation type composite board.

The present application is described in further detail below with reference to figures 1-9.

Example 1

Referring to fig. 1 and 2, the composite panel includes an acoustic panel 1, a first cover panel 2 and a second cover panel 3. In this embodiment, the sound insulation board 1 is a hard centrifugal glass wool board, and the sound insulation board 1 has certain sound absorption and noise reduction performance. First shrouding 2 and second shrouding 3 are aluminum plate, and first shrouding 2 and second aluminum plate are located the both sides of 1 thickness direction of acoustic celotex board respectively to protect acoustic celotex board 1, guarantee acoustic celotex board 1's syllable-dividing effect.

Referring to fig. 2, the side wall of the first sealing plate 2 facing the second sealing plate 3 is integrally formed with an isolation surrounding plate 21, and in this embodiment, the isolation surrounding plate 21 is a square plate. The peripheral wall of isolation bounding wall 21 is in same longitudinal plane with the peripheral wall of first shrouding 2, and the internal diameter size of isolation bounding wall 21 and the peripheral size looks adaptation of acoustic celotex board 1.

Referring to fig. 2, an operator may apply an adhesive, which may be a resin adhesive, to the soundproof plate 1. Support in isolation bounding wall 21 inner chamber with acoustic celotex board 1, make acoustic celotex board 1 and the mutual lateral wall of orientation of first shrouding 2 offset and cement, acoustic celotex board 1 offsets and cements with the mutual lateral wall of orientation of isolation bounding wall 21, and acoustic celotex board 1 keeps away from the lateral wall of first shrouding 2 and the lateral wall coplane that first shrouding 2 was kept away from to isolation bounding wall 21.

Referring to fig. 2, the operator can brush the adhesive on the side wall of the second sealing plate 3 facing the first sealing plate 2, and then the second sealing plate 3 is abutted against the isolation surrounding plate 21 and the sound insulation plate 1 at the same time, so that the second sealing plate 3 is adhered to the isolation surrounding plate 21 and the sound insulation plate 1 at the same time. At this moment, in acoustic celotex board 1 stably was fixed in the cavity of first shrouding 2, second shrouding 3 and the formation of acoustic celotex board, effectively reduced foreign object and 1 direct contact of acoustic celotex board and caused the phenomenon of influence, ensured acoustic celotex board 1's syllable-dividing effect.

The application principle of the sound insulation type composite board in the embodiment of the application is as follows: first shrouding 2 and 3 intensity height of second shrouding, waterproof, compressive property are strong, and acoustic celotex board 1 glues admittedly in first shrouding 2 and second shrouding between 3 after, effectively reduced foreign object direct impact, damaged acoustic celotex board 1's phenomenon. Keep apart bounding wall 21 and anchor tightly around 1 periphery of acoustic celotex board for in acoustic celotex board 1 closely cooperates in the cavity of first shrouding 2, second shrouding 3 and the common formation of isolation bounding wall 21, external disturbance is few, and positional stability is high, and then has effectively ensured acoustic celotex board 1's application stability and sound insulation performance.

Example 2

The difference between the embodiment of the present application and embodiment 1 is that, with reference to figures 3 and 4, a connecting assembly 6 is provided between the insulating shroud 21 and the second closure plate 3.

Referring to fig. 5 and 6, a fastening assembly 4 is arranged between the first sealing plate 2 and the baffle plate 1, a limiting assembly 5 is arranged between the baffle plate 1 and the isolation baffle plate 21,

referring to fig. 6, the hold-down assembly 4 comprises a plurality of compression springs 41, all of the compression springs 41 are welded perpendicularly to the side walls of the first cover plate 2, and all of the compression springs 41 are located within the isolating shroud 21. The abutting assembly 4 further includes a receiving plate 42, the receiving plate 42 is welded to one end of all the compression springs 41 away from the first sealing plate 2, and the outer peripheral dimension of the receiving plate 42 is matched with the outer peripheral dimension of the sound insulation plate 1.

Referring to fig. 6, after the baffle plate 1 abuts against the inner cavity of the bulkhead 21, the baffle plate 1 abuts against the side wall facing the receiving plate 42. The operator presses the baffle board 1 to compress and deform the compression spring 41 under force. At this time, the second sealing plate 3 abuts against the side wall of the isolation surrounding plate 21 away from the first sealing plate 2, so that the baffle plate 1 can abut against between the first sealing plate 2 and the second sealing plate 3.

Referring to fig. 5 and 7, the fastening assembly 4 further includes a fastening member 43, and the fastening member 43 is used to fix the baffle board 1 to the receiving plate 42. In this embodiment, the number of the tightening members 43 may be two, and each tightening member 43 includes two elastic belts 431. One end of each elastic tying band 431 in the length direction is respectively adhered to the sound insulation board 1, and the two elastic tying bands 431 are in clearance fit. Two hole 11 of stepping down run through on the acoustic celotex board 1 and be provided with, an elasticity frenulum 431 can pass one hole 11 of stepping down, and two elasticity frenulums 431 pass the one end fixable connection of hole 11 of stepping down to be fixed in on the board 42 with acoustic celotex board 1.

Referring to fig. 7, the bundling member 43 further includes a connecting sub-buckle 432 and a connecting female buckle 433, in this embodiment, the connecting sub-buckle 432 is a sub-buckle of a snap-buckle, and the connecting female buckle 433 is a female buckle of the snap-buckle. The connecting sub-button 432 is adhered to one of the tightening straps, the connecting sub-button 432 is located at one end of the tightening strap away from the bearing plate 42, the connecting female button 433 is adhered to the other tightening strap, and the connecting female button 433 is also located at one end of the tightening strap away from the bearing plate 42.

Referring to fig. 7, after the elastic strap 431 passes through the offset hole 11, the connecting male buckle 432 and the connecting female buckle are both located at the end of the sound insulation panel 1 far from the receiving plate 42. After the connecting male buckle 432 and the connecting female buckle 433 are buckled, the two elastic belts 431 penetrate through the end of the abdicating hole 11 to be quickly and fixedly connected, so that the sound insulation board 1 is quickly fixed on the bearing board 42, and the phenomenon that the sound insulation board 1 is separated from the bearing board 42 is reduced.

Referring to fig. 7, in the present embodiment, the sidewall of the sound insulation board 1 away from the receiving plate 42 is provided with the receiving groove 12, the receiving groove 12 is located between two adjacent receding holes 11, and the inner cavity of the receding hole 11 is communicated with the inner cavity of the receiving groove 12 for receiving one end of the elastic fastening band 431 away from the receiving plate 42, so as to reduce the phenomenon that the elastic fastening band 431 protrudes out of the sound insulation board 1.

Referring to fig. 8 and 9, the isolation surrounding plate 21 is provided with a plurality of preset grooves 211 facing the sidewall of the baffle plate 1, the baffle plate 1 is provided with clamping grooves 13 equal to the number of the preset grooves 211, and after the baffle plate 1 is pushed into the inner cavity of the isolation surrounding plate 21, all the clamping grooves 13 can be in one-to-one correspondence with all the preset grooves 211.

Referring to fig. 9, the position limiting assembly 5 includes an elastic member 51, in this embodiment, the elastic member 51 is a compression spring made of steel, one end of the elastic member 51 is welded in the preset groove 211, and the elastic member 51 extends along the extending direction of the preset groove 211. The stop assembly 5 further comprises an abutment block 52, in this embodiment, the abutment block 52 is an iron block. The abutting block 52 is welded to the other end of the elastic member 51. When the elastic member 51 is in the freely extending state, one end of the abutting block 52 is located in the preset groove 211, and the other end is located outside the preset groove 211.

Referring to fig. 9, the isolating surrounding plate 21 is provided with an operation hole 212 at a position away from the side wall of the first closing plate 2 and located at the preset groove 211, and an inner cavity of the operation hole 212 is communicated with an inner cavity of the preset groove 211. An extension plate 521 is integrally formed on the side wall of the abutting block 52 away from the first closing plate 2, and one end of the extension plate 521 away from the abutting block 52 passes through the predetermined slot 211 and extends into the operation hole 212.

Referring to fig. 9, the operator may grasp the extension plate 521 and press the extension plate toward the elastic member 51 to compress the elastic member 51, so that the abutting block 52 abuts completely into the predetermined groove 211. In propping acoustic celotex board 1 into isolation bounding wall 21, operating personnel can press acoustic celotex board 1 for compression spring 41 compresses, and the lateral wall that keeps away from first shrouding 2 and isolation bounding wall 21 keep away from first shrouding 2 up to acoustic celotex board 1 is coplanar. At this time, the preset groove 211 and the snap groove 13 are aligned, the operator can release the extension plate 521, and the elastic member 51 is freely extended, so that the abutting block 52 passes through the preset groove 211 to abut into the snap groove 13, thereby defining the position of the baffle board 1 in the isolation surrounding board 21.

Referring to fig. 9, the sound insulation panel 1 has a positioning block 131 adhered to the inside of the engaging groove 13, and the positioning block 131 is a block made of a magnet. After the abutting block 52 abuts against the inner cavity of the clamping groove 13, one end of the abutting block 52, which is far away from the elastic piece 51, abuts against the positioning block 131 and is magnetically attracted, so that the position stability of the sound insulation board 1 in the isolation surrounding board 21 is improved. At this moment, the operator can support the second sealing plate 3 tightly to keep away from the side wall of the first sealing plate 2 in the isolation surrounding plate 21, and the side walls of the sound insulation plate 1 and the second sealing plate 3 facing each other also support each other, so that the sound insulation plate 1 is positioned in the cavity surrounded by the first sealing plate 2, the second sealing plate 3 and the isolation surrounding plate 21.

Referring to fig. 4, the connecting assembly 6 includes positioning screws 61, in this embodiment, the number of the positioning screws 61 may be four, and the positioning screws 61 are perpendicularly welded to four corners of the side wall of the isolation surrounding plate 21 away from the first sealing plate 2. Four through holes 31 are formed in the second sealing plate 3 in a penetrating mode, when the second sealing plate 3 and the side wall facing the isolation surrounding plate 21 are abutted, the positioning screw rod 61 abuts into the corresponding through hole 31, and the position of the second sealing plate 3 relative to the isolation surrounding plate 21 is limited.

Referring to fig. 4, the side wall of the second sealing plate 3 away from the first sealing plate 2 is provided with a step groove 32 around the periphery of each through hole 31, the connecting assembly 6 further comprises a locking nut 62, the locking nut 62 is located in the step groove 32, and the locking nut 62 is screwed on the positioning screw rod 61 to fixedly connect the positioning screw rod 61 with the second sealing plate 3.

The application principle of the sound insulation type composite board in the embodiment of the application is as follows: the extension plate 521 is grabbed and pressed towards the elastic member 51, so that the elastic member 51 is compressed and deformed, and the abutting block 52 abuts against the inner cavity of the predetermined slot 211 completely. The baffle board 1 is pushed into the inner cavity of the isolation surrounding board 21 and pressed, and the compression spring 41 is stressed and compressed to deform, so that all the clamping grooves 13 correspond to the preset grooves 211 one by one. The extension plate 521 is loosened, the elastic piece 51 extends freely, one end of the abutting block 52, which is far away from the elastic piece 51, abuts against the clamping groove 13, the abutted abutting block 52 and the positioning block 131 attract each other magnetically, and the sound insulation plate 1 is stably positioned in the isolation coaming 21.

The second sealing plate 3 abuts against the side wall of the isolation surrounding plate 21 far away from the first sealing plate 2, the positioning screw rod 61 abuts into the through hole 31, and the locking nut 62 is screwed on the positioning screw rod 61 and is accommodated in the stepped groove 32. At this time, the baffle plate 1 is stably positioned in the cavity formed by the first sealing plate 2, the second sealing plate 3 and the isolation surrounding plate 21. When acoustic celotex board 1 uses for a long time and needs maintenance, renew, the second shrouding 3 is dismantled to the operating personnel accessible to dismantle and maintain, renew acoustic celotex board 1 from keeping apart bounding wall 21, and then the composite sheet that has effectively ensured gives sound insulation effect when using.

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: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A sound insulation type composite board is characterized in that: comprises a sound insulation board (1), a first sealing board (2) and a second sealing board (3); the sound insulation plate (1) is arranged between the first sealing plate (2) and the second sealing plate (3); the utility model discloses a sound insulation board, including first shrouding (2), isolation bounding wall (21) are provided with around septum (1) periphery on the lateral wall of first shrouding (2), isolation bounding wall (21) support tightly in the lateral wall of second shrouding (3) towards first shrouding (2), just isolation bounding wall (21) and second shrouding (3) fixed connection.

2. The acoustical composite panel of claim 1, wherein: the first sealing plate (2) is fixedly adhered to the sound insulation plate (1); lateral wall and isolation bounding wall (21) that first shrouding (2) were kept away from in acoustic celotex board (1) keep away from the lateral wall coplane of first shrouding (2), second shrouding (3) are fixed with acoustic celotex board (1) and isolation bounding wall (21) gluing simultaneously.

3. The acoustical composite panel of claim 1, wherein: septum (1) can be dismantled and set up between first shrouding (2) and second shrouding (3), be provided with coupling assembling (6) between isolation bounding wall (21) and second shrouding (3), coupling assembling (6) are used for fixed connection isolation bounding wall (21) and second shrouding (3).

4. An acoustical composite panel as set forth in claim 3, in which: the connecting assembly (6) comprises a positioning screw rod (61) and a locking nut (62); the positioning screw rod (61) is arranged on the side wall of the isolation enclosing plate (21) far away from the first sealing plate (2), and a through hole (31) for the positioning screw rod (61) to abut into is arranged on the second sealing plate (3) in a penetrating mode; the side wall of the second sealing plate (3) far away from the first sealing plate (2) is provided with a step groove (32) around the periphery of the through hole (31), the locking nut (62) is in threaded fit with the positioning screw rod (61), and the locking nut (62) is located in the step groove (32).

5. An acoustical composite panel as set forth in claim 3, in which: a tight-resisting component (4) is arranged between the first sealing plate (2) and the sound insulation plate (1), and the tight-resisting component (4) comprises a bearing plate (42) and a plurality of compression springs (41); all the compression springs (41) are positioned on the side wall of the first sealing plate (2) facing the sound insulation plate (1), and the bearing plate (42) is positioned at one end of all the compression springs (41) facing the sound insulation plate (1).

6. An acoustical composite panel as set forth in claim 5, in which: the abutting assembly (4) further comprises a plurality of groups of beam-collecting pieces (43) used for positioning the sound insulation board (1) on the bearing board (42).

7. The acoustical composite panel of claim 6, wherein: each group of the bundling pieces (43) comprises two elastic laces (431), a connecting sub-buckle (432) and a connecting female buckle (433); the same end of the two elastic laces (431) in the length direction is fixedly arranged on the side wall of the bearing plate (42) facing the sound insulation plate (1), two abdicating holes (11) are arranged on the sound insulation plate (1) in a penetrating manner, and one elastic lace (431) penetrates through one abdicating hole (11); the connecting sub-buckle (432) is arranged on one elastic lace (431), the connecting female buckle (433) is arranged on the other elastic lace (431), and the connecting sub-buckle (432) is buckled with the connecting female buckle (433), so that one ends of the two elastic laces (431) far away from the bearing plate (42) are fixedly connected.

8. An acoustical composite panel as set forth in claim 3, in which: a limiting assembly (5) is arranged between the isolation coaming (21) and the sound insulation board (1), and the limiting assembly (5) comprises an elastic part (51) and an abutting block (52); the side wall of the isolation coaming (21) facing the sound insulation board (1) is provided with a plurality of preset grooves (211), one end of the elastic part (51) is arranged in the preset grooves (211), and the abutting block (52) is arranged at the other end of the elastic part (51); the side wall of the sound insulation board (1) is provided with a clamping groove (13) for the abutting block (52) to abut into.

9. The acoustical composite panel of claim 8, wherein: a positioning block (131) is arranged in the groove body of the preset groove (211), and the abutting block (52) and the positioning block (131) are in magnetic attraction.

10. The acoustical composite panel of claim 8, wherein: an operation hole (212) is formed in the side wall, far away from the first sealing plate (2), of the isolating surrounding plate (21), and the inner cavity of the operation hole (212) is communicated with the inner cavity of the preset groove (211); an extension plate (521) is arranged on the abutting block (52), and one end, far away from the abutting block (52), of the extension plate (521) is located in the operation hole (212).