A screen, a screen wall and a device for sound insulation and air return

Abstract

The present invention provides a screen, a screen wall and a device for sound insulation and air return, comprising a screen body, a sound insulation layer and a fixing part. The screen body includes a sound insulation section extending along the head and tail direction and an air return section located at one end of the sound insulation section; the sound insulation layer is laid on the sound insulation section; the fixing part is used to fix the screen body at a predetermined position on the installation wall; the air return section is at one end of the sound insulation section and extends inwards, and a plurality of air return holes are opened on the air return section; a plurality of screens are fixed end to end on the enclosure panel, and the sound insulation section of the screen completely covers the surface of the predetermined position of the steel enclosure, reducing the noise transmission inside and outside the enclosure panel; at the same time, a plurality of air return holes are opened on the air return section bent inwards to ventilate inside and outside the steel enclosure. Thus, the air return holes opened on the air return section reduce the negative impact on the sound insulation effect of the sound insulation section while ensuring the ventilation of the air return screen, enabling the screen to well balance the functions of sound insulation and ventilation.

Description

Technical Field

[0001] The present invention relates to the field of ships, and particularly to a screen, a screen wall and a device for sound insulation and air return. Background Art

[0002] In public cabins on ships, such as meeting rooms, there are many people, a large air volume of air conditioners, large sizes of air supply ducts and air return ducts. Due to space limitations, the duct layout is extremely difficult. It is necessary to cancel the air return duct and directly install an air return grille on the cabin wall. The air return in the cabin enters the air conditioner room through the air return grille and the aisle outside the cabin. The voices of people walking on the aisle and the voices of people speaking in the meeting room can both be transmitted through the air return grille, causing the indoor and outdoor sounds to affect each other, resulting in the noise in the meeting room not meeting the requirements. Summary of the Invention

[0003] In view of the above-mentioned disadvantages of the prior art, the technical problem to be solved by the present invention is to provide a screen, a screen wall and a device for sound insulation and air return.

[0004] The present invention provides a screen for sound insulation and air return, including a screen body, a sound insulation layer and a fixing part. The screen body includes a sound insulation section extending along the head and tail direction and an air return section at one end of the sound insulation section; the sound insulation layer is laid on the sound insulation section; the fixing part is used to fix the screen body at a predetermined position on the installation wall; the air return section is at one end of the sound insulation section and extends inward, and a plurality of air return holes are formed in the air return section.

[0005] Preferably, the fixing part includes a fixing insert provided at one end of the screen body and a pressing groove on the installation wall, and the fixing insert is adapted to the pressing groove.

[0006] Preferably, two adjacent screens are snap-connected through a first positioning groove and a second positioning groove. The first positioning groove is provided at the head end of the latter screen, and the opening of the first positioning groove faces forward; the second positioning groove is provided at the tail end of the former screen, and the opening of the second positioning groove faces backward.

[0007] Preferably, it further includes spacer sections respectively located at both ends of the screen body; the spacer section at one end away from the air return section extends inward from the side of the screen body, and the spacer section at the other end extends inward from the air return section; the fixing insert is provided at the end of the spacer section away from the screen body.

[0008] The present invention also provides a screen wall for sound insulation and air return, which includes at least three of the above-mentioned screens. The at least three screens include a first screen, at least one second screen, and a third screen. A fixed insert is provided at the head end of the first screen, and a second positioning groove is provided at the tail end of the first screen. The first positioning groove and the second positioning groove are respectively provided at the head and tail ends of the second screen. The first positioning groove is provided at the head end of the third screen, and the fixed insert is provided at the tail end of the third screen. A crimping groove adapted to the fixed insert is provided on the installation wall.

[0009] The present invention also provides a device for sound insulation and air return, which includes the above-mentioned screen.

[0010] The present invention also provides a device for sound insulation and air return, which includes the above-mentioned screen wall, a steel bulkhead, a sound insulation and air return grille fixed on the steel bulkhead, and a bulkhead panel provided with air return holes. The screen wall is arranged on the bulkhead panel and surrounds the air return holes on the bulkhead panel.

[0011] As described above, a screen, a screen wall, and a device for sound insulation and air return according to the present invention are provided. A plurality of screens are fixed to the installation wall end to end. The sound insulation section of the screen completely covers the surface of a predetermined position of the installation wall, reducing the noise transmission inside and outside the bulkhead panel. At the same time, a plurality of air return holes are provided in the air return section bent inward (that is, toward the side of the installation wall), for ventilation inside and outside the steel bulkhead. Thus, the air return holes provided in the air return section ensure the ventilation of the air return screen while reducing the negative impact on the sound insulation effect of the sound insulation section, enabling the screen to well balance the functions of sound insulation and ventilation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a screen for sound insulation and air return according to the present invention.

[0013] Figure 2 It is another schematic diagram of a screen for sound insulation and air return according to the present invention.

[0014] Figure 3 It is another schematic diagram of a screen for sound insulation and air return according to the present invention.

[0015] Figure 4 It is a schematic diagram of the connection between two front and rear screens according to the present invention.

[0016] Figure 5 It is a schematic diagram of the present invention with a screen wall installed.

[0017] Description of the reference numerals:

[0018] 100, Screen; 110, Screen body; 111, Sound insulation section; 112, Return air section; 120, Sound insulation layer; 130, Fixed insert; 131, Edge pressing groove; 132, Z-shaped pressing strip; 140, First positioning groove; 141, Second positioning groove; 150, Spacing section; 200, Enclosing wall panel; 300, Steel enclosing wall; 400, Sound insulation and return air grille. Detailed implementation manners

[0019] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0020] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like cited in this specification are only for the convenience of clear narration, and are not used to limit the scope for the implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope for the implementation of the present invention.

[0021] As Figures 1-5 shown, an embodiment of a screen 100 for sound insulation and return air includes a screen body 110, a sound insulation layer 120 and a fixing part. The screen body 110 includes a sound insulation section 111 extending along the head and tail direction and a return air section 112 located at one end of the sound insulation section 111; the sound insulation layer 120 is laid on the sound insulation section 111; the fixing part is used to fix the screen body 110 at a predetermined position on the installation wall; the return air section 112 is at one end of the sound insulation section 111 and extends inwards, and a plurality of return air holes are provided on the return air section 112.

[0022] In this embodiment, the installation wall is the bulkhead 200. A number of screens 100 are fixed to the bulkhead 200 end to end. The sound insulation section 111 of the screen 100 completely covers the surface of the predetermined position (such as the position with ventilation holes) of the steel bulkhead 300, reducing the noise transmission inside and outside the bulkhead 200. At the same time, a number of return air holes are provided in the return air section 112 that is bent inward (i.e., toward the side of the installation wall), for ventilation inside and outside the steel bulkhead 300. Thus, the return air holes provided in the return air section 112 reduce the negative impact on the sound insulation effect of the sound insulation section 111 while ensuring the ventilation of the return air screen, enabling the screen 100 to well balance the functions of sound insulation and ventilation. Correspondingly, this embodiment also proposes a device for sound insulation and return air, including the above-mentioned screen 100.

[0023] Specifically, when the screen 100 for sound insulation and return air of this embodiment is fixed to the bulkhead 200, the return air section 112 is perpendicular to the surface of the steel bulkhead 300; that is, the return air section 112 can be formed by bending the side of the screen body 110 perpendicular to the steel bulkhead 300.

[0024] In this embodiment, the fixing part includes a fixing insert 130 provided at one end of the screen body 110 and a crimping groove 131 on the installation wall, and the fixing insert 130 is adapted to the crimping groove 131. The fixing of the screen body 110 to the installation wall can be achieved by inserting the fixing insert 130 into the corresponding crimping groove 131, which is convenient and simple. The fixing insert 130 can be located only at the head end of the screen body 110, or only at the tail end of the screen body 110, and of course, it can also be arranged at both the head and tail ends of the screen body 110. Among them, the crimping groove 131 is formed by fixing a Z-shaped strip 132 to the corresponding installation wall. To enhance the fixing strength between the installation wall and the screen body 110, after the fixing insert 130 is inserted into the crimping groove, the fixing insert 130 can be fixed to the installation wall by screws.

[0025] Among them, two adjacent screens 100 in the front and back are snap-connected through a first positioning groove 140 and a second positioning groove 141. The first positioning groove 140 is provided at the head end of the latter screen 100, and the opening of the first positioning groove 140 faces forward; the second positioning groove 141 is provided at the tail end of the former screen 100, and the opening of the second positioning groove 141 faces backward. Among them, the front in the front-back direction refers to the direction in which the screen body 110 points from the tail end to the head end, and the back refers to the direction in which the screen body 110 points from the head end to the tail end.

[0026] Preferably, the screen 100 further includes spacer segments 150 respectively located at both ends of the screen body 110. The spacer segment 150 at the end away from the air return section 112 extends inward from the side of the screen body 110, and the spacer segment 150 at the other end extends inward from the air return section 112; the fixed insert 130 is disposed at the end of the spacer segment 150 away from the screen body 110. The arrangement of the spacer segments 150 increases the space between the inner wall of the screen 100 and the installation wall, facilitating ventilation.

[0027] Correspondingly, the present invention also provides an embodiment of a sound-insulating air return wall, including at least three of the screens 100. The at least three screens 100 include a first screen, at least one second screen, and a third screen; a fixed insert 130 is provided at the head end of the first screen, and a second positioning groove 141 is provided at the tail end of the first screen; a first positioning groove 140 and a second positioning groove 141 are respectively provided at the head and tail ends of the second screen; a first positioning groove 140 is provided at the head end of the third screen, and a fixed insert 130 is provided at the tail end of the third screen; a bead groove 131 adapted to the fixed insert 130 is provided on the installation wall.

[0028] In this embodiment, there is one first screen, located at the forefront of the screen wall; there is one third screen, located at the rearmost of the sound-insulating air return screen wall; there are three second screens, located between the first screen and the third screen. Among them, Figure 1 is the structural schematic diagram of the first screen, Figure 2 is the structural schematic diagram of the second screen, Figure 3 is the structural schematic diagram of the third screen. When assembling the screen wall, the fixed insert 130 at the head end of the first screen is inserted into the bead groove 131 of the installation wall, realizing the positioning of the first screen and the installation wall, and the first screen is fixed to the installation wall by screws passing through the fixed insert 130 and the bead groove 131. Similarly, the tail end of the third screen is also fixed to the installation wall through the fixed insert 130 and the bead groove 131. The head and tail ends of two adjacent screens 100 are respectively clamped by the first positioning groove 140 and the second positioning groove 141. For example, the first positioning groove 140 at the head end of the second screen adjacent to the first screen is engaged with the second positioning groove 141 at the tail end of the first screen, realizing the fixation between the first screen and the adjacent second screen.

[0029] By providing fixed inserts 130 at the head end of the first screen and the tail end of the third screen, and clamping two adjacent screens 100 by the first positioning groove 140 and the second positioning groove 141, it is convenient to assemble the screen wall.

[0030] The present invention also proposes an embodiment of a sound insulation and noise reduction return air device, comprising a screen wall, a steel enclosure 300, a sound insulation return air grille 400 arranged on the steel enclosure 300, and a enclosure panel 200 with return air holes, wherein the screen wall is arranged on the enclosure panel 200 and surrounds the return air holes on the enclosure panel 200.

[0031] The air outside the screen 100 passes through the return air holes of the return air section 112, the return air holes on the surrounding wall panel 200 and the sound insulation return air grille 400, thereby realizing the flow of air through the screen 100 and the steel surrounding wall 300; at the same time, the screen wall surrounding the return air holes on the surrounding wall panel 200 realizes the sound insulation of the inside and outside of the hull surrounding wall panel 200, greatly reducing the mutual interference between return air and sound insulation, and realizing the effect of taking both sound insulation and return air effects into consideration.

[0032] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A screen for sound insulation and air return, characterized in that, It includes a screen body (110), a sound insulation layer (120) and a fixing part. The screen body (110) includes a sound insulation section (111) extending along the head-tail direction and a return air section (112) located at one end of the sound insulation section (111); the sound insulation layer (120) is laid on the sound insulation section (111); the fixing part is used to fix the screen body (110) at a predetermined position on the installation wall; the return air section (112) extends inwards, and a plurality of return air holes are formed in the return air section (112); the fixing part includes a fixing insert piece (130) arranged at one end of the screen body (110) and a pressing groove (131) fixed on the installation wall, and the fixing insert piece (130) is adapted to the pressing groove (131); two adjacent screens (100) in the front and rear are connected by snap-fitting of a first positioning groove (140) and a second positioning groove (141). The first positioning groove (140) is arranged at the head end of the latter screen (100), and the opening of the first positioning groove (140) faces forward; the second positioning groove (141) is arranged at the tail end of the former screen (100), and the opening of the second positioning groove (141) faces backward.

2. The sound-insulating return air screen according to claim 1, characterized in that, It further includes spacer sections (150) respectively located at both ends of the screen body (110); the spacer section (150) at one end away from the return air section (112) extends inwards from the side of the screen body (110), and the spacer section (150) at the other end extends inwards from the return air section (112); the fixing insert piece (130) is arranged at the end of the spacer section (150) away from the screen body (110).

3. A screen wall for sound insulation of return air, characterized in that, It includes at least three screens (100) described in claim 1. The at least three screens (100) include a first screen, at least one second screen and a third screen; a fixing insert piece (130) is arranged at the head end of the first screen, and a second positioning groove (141) is arranged at the tail end of the first screen; a first positioning groove (140) and a second positioning groove (141) are respectively arranged at the head and tail ends of the second screen; a first positioning groove (140) is arranged at the head end of the third screen, and a fixing insert piece (130) is arranged at the tail end of the third screen; a pressing groove (131) adapted to the fixing insert piece (130) is arranged on the installation wall.

4. A device for sound insulation and return air, characterized in that, It includes the screen (100) described in any one of claims 1-2.

5. A device for sound-insulated air return, characterized in that, It includes the screen wall described in claim 3, a steel bulkhead (300), a sound insulation and return air grille (400) arranged on the steel bulkhead (300), and a bulkhead panel (200) provided with return air holes. The screen wall is fixed on the bulkhead panel (200) and surrounds the return air holes on the bulkhead panel (200).

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