Modularized fast-assembly anechoic chamber structure

Abstract

The utility model discloses a modular fast-assembly anechoic chamber structure which comprises a wall body and a sealing top, the wall body and the sealing top are both formed by splicing prefabricated anechoic plates, square steel bars are arranged on the peripheries of the prefabricated anechoic plates respectively and are sequentially welded together to form a steel structure frame, metal panels are arranged on the two side faces of the prefabricated anechoic plates respectively, and the metal panels are connected with the sealing top. The four edges of the metal panels are fixedly connected with the square steel bars respectively, and sound absorption material layers are arranged between the steel panels. A convex spigot and a concave spigot which are matched with each other are respectively arranged on the end surfaces of the square steel bars on the two side edges of the prefabricated silencing plate, and an eccentric hook and a pin which are matched with each other are respectively arranged on the end surfaces; sealing rubber strips are arranged on the end faces of the square steel bars on the two side edges of the prefabricated silencing plate respectively. The combined type building block is simpler and quicker to assemble, can be repeatedly disassembled and assembled, and is convenient to move.

Description

Technical Field

[0001] The utility model relates to the technical field of anechoic chambers, in particular to a modular quick-assembly anechoic chamber structure. Background Art

[0002] An anechoic chamber is a room that can provide free sound field experimental conditions. It is often used for acoustic testing of home appliances, communications, electronics, automobiles, electromechanical and other products. It is generally divided into a full anechoic chamber and a semi-anechoic chamber.

[0003] Most of the existing anechoic chambers are traditional structures such as brick-concrete structures or gypsum board structures. These traditional anechoic chambers have low installation efficiency, long on-site construction periods, and are difficult to disassemble and reuse and reassemble.

[0004] In order to overcome the defects of traditional structures, prefabricated silencer panels have gradually appeared on the market, and anechoic chambers are assembled through prefabricated silencer panels. However, the current assembly of prefabricated silencer panels is connected and fixed by structural adhesive or self-tapping screws, and the corresponding steel support structure needs to be welded and built at the installation site of the anechoic chamber, and the prefabricated silencer panels are supported by the built steel support structure. It can be seen that the installation efficiency of the current prefabricated silencer panels is still not high, and they are not easy to disassemble. Although they can be barely reassembled after disassembly, reassembly is not convenient, and the silencer performance after reinstallation is easily reduced, which is still not conducive to the subsequent relocation and reuse by the builder. Utility Model Content

[0005] The utility model aims to provide a modular quick-assembly anechoic chamber structure, which is easier and quicker to assemble and can be repeatedly assembled and disassembled, making it convenient to relocate.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] A modular quick-install anechoic chamber structure comprises a wall and a roof, and is characterized in that: the wall and the roof are assembled from prefabricated anechoic panels, square steel bars are respectively arranged around the periphery of the prefabricated anechoic panels, the square steel bars are welded together to form a steel structure frame, metal panels are respectively arranged on the two sides of the prefabricated anechoic panels, the four sides of the metal panels are respectively fixedly connected to the square steel bars, and sound-absorbing material layers are arranged between the metal panels; matching convex stoppers and concave stoppers are respectively arranged on the end faces of the square steel bars on both sides of the prefabricated anechoic panels, and matching eccentric hooks and pins are respectively arranged; sealing strips are respectively arranged on the end faces of the square steel bars on both sides of the prefabricated anechoic panels.

[0008] Furthermore, mounting grooves are respectively arranged on the end surfaces of the square steel bars on both sides of the prefabricated sound-absorbing plate, and the eccentric hooks and pins are respectively installed in the mounting grooves.

[0009] Furthermore, the anechoic chamber structure includes planar prefabricated anechoic panels and corner-shaped prefabricated anechoic panels, and the corner-shaped prefabricated anechoic panels are arranged at the corner joints between adjacent walls.

[0010] Furthermore, sealing rubber strips are respectively arranged on both sides of the convex rabbet and both sides of the concave rabbet.

[0011] Furthermore, a sound insulation layer is also provided between the metal panels of the prefabricated anechoic panel.

[0012] Furthermore, the four sides of the metal panel are provided with bent edges, and the bent edges are hooked on the square steel bars and fixedly connected.

[0013] Furthermore, the periphery of the top closure is directly lapped on the top of the wall and connected by sealant, and the periphery of the top closure is flush with the wall.

[0014] Furthermore, a step rabbet is provided on the top of the wall, and the periphery of the top closure is fitted in the step rabbet and connected by sealant at the same time.

[0015] Furthermore, the wall and the ground are connected by sealant.

[0016] Furthermore, the wall and the ground are also fixedly connected by L-shaped corner brackets or U-shaped grooves.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] The walls and the top closure of the anechoic chamber structure of the present utility model are both formed by splicing prefabricated anechoic panels, forming a modular structure.

[0019] Square steel bars are respectively arranged on the four sides of the prefabricated anechoic panel to form a steel structure framework by connection, and metal panels are arranged on two sides, and the metal panels are fixedly connected with the square steel bars to form a high-strength and stable framework, so that the anechoic chamber structure of the present utility model does not need to additionally build a steel support structure on the construction site, and an effective support can be directly formed by the steel structure of the prefabricated anechoic panel itself, with higher construction efficiency and greatly saving the labor and fitting materials for on-site installation.

[0020] The prefabricated anechoic panels of the present utility model are nested and matched through convex rabbets and concave rabbets and sealed by sealing rubber strips, and good sound insulation performance can be formed at the joints. The prefabricated anechoic panels of the present utility model are fixedly connected by eccentric hooks and pins, and there is no need to connect with structural adhesive or self-tapping screws anymore. The disassembly and assembly are more convenient and fast, and can be disassembled and assembled repeatedly. After repeated disassembly and assembly, the sealing and sound insulation performances are basically the same, and it is convenient to relocate.

[0021] The eccentric hooks and pins of the present utility model are arranged on the steel structure framework, which can make the connection strength between the prefabricated anechoic panels higher and more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is one of the perspective views of the anechoic chamber structure according to the first embodiment of the present utility model;

[0023] Figure 2 is the second perspective view of the anechoic chamber structure according to the first embodiment of the present utility model;

[0024] Figure 3 is the top view of the wall of the anechoic chamber structure according to the first embodiment of the present utility model;

[0025] Figure 4 is the cross-sectional view of the flat prefabricated anechoic panel according to the first embodiment of the present utility model;

[0026] Figure 5 is the cross-sectional view when two flat prefabricated anechoic panels according to the first embodiment of the present utility model are assembled;

[0027] Figure 6 is the front view when two flat prefabricated anechoic panels according to the first embodiment of the present utility model are assembled;

[0028] Figure 7 is the schematic diagram of the existing eccentric hook lock provided by the manufacturer;

[0029] Figure 8 is the schematic diagram when the existing eccentric hook locks provided by the manufacturer are connected together.

[0030] Meanings of the reference numerals in the drawings:

[0031] 1 - wall; 2 - ceiling; 3 - prefabricated anechoic panel; 301 - corner-shaped prefabricated anechoic panel; 302 - flat prefabricated anechoic panel; 4 - perforation; 5 - convex stop; 6 - concave stop; 7 - sealing strip; 8 - square steel bar; 9 - metal panel; 10 - pin; 11 - eccentric hook; 12 - bent edge; 13 - operation hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The present utility model will be further described below in conjunction with the embodiments.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0034] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, while understandings such as "above", "below", "within", etc. include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or implicitly specifying the sequence relationship of the indicated technical features.

[0035] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art to which the present utility model pertains can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0036] Embodiment 1:

[0037] As Figures 1 to 3 shown is the modular quick - installation anechoic chamber structure of this embodiment, which includes a wall 1 and a ceiling 2. The wall 1 encloses the four sides of the space, and the ceiling 2 covers the top of the space. Both the wall 1 and the ceiling 2 are assembled by prefabricated sound - absorbing panels 3.

[0038] In this embodiment, a planar prefabricated sound - absorbing panel 302 and a corner - shaped prefabricated sound - absorbing panel 301 are provided. The planar prefabricated sound - absorbing panel 302 is rectangular, and the planar parts of the wall 1 and the ceiling 2 are both assembled by the planar prefabricated sound - absorbing panels 302. The corner - shaped prefabricated sound - absorbing panel 301 is a plate member with a right - angle turn, and is arranged at the corner connection between adjacent walls 1 to connect the adjacent walls through the corner - shaped prefabricated sound - absorbing panel 301.

[0039] The structures of the planar prefabricated sound - absorbing panel 302 and the corner - shaped prefabricated sound - absorbing panel 301 are the same, except that one is made into a planar shape and the other is made into a right - angle turn shape. As Figure 4 shown, square steel bars 8 are respectively arranged on the peripheries of the prefabricated sound - absorbing panels 3. The square steel bars 8 can be formed by bending steel plates or can be square steel pipes. The peripheral square steel bars 8 are welded together in sequence to form a rectangular steel structure frame, and the steel structure frame greatly improves the strength of the prefabricated sound - absorbing panel 3, so that the anechoic chamber structure does not need to additionally build a steel support structure on site.

[0040] Metal panels 9 are respectively arranged on the two sides of the prefabricated sound - absorbing panel 3. The four sides of the metal panel 9 are provided with bent edges 12, and the bent edges 12 are hooked on the square steel bars 8 and welded and fixed. An acoustic absorption material layer and a sound insulation layer for strengthening are arranged between the metal panels 9 on the two sides of the prefabricated sound - absorbing panel 3. The interior of the prefabricated sound - absorbing panel 3 is filled with the acoustic absorption material layer and the sound insulation layer. The material of the acoustic absorption material layer can be glass wool / rock wool, etc., and the sound insulation layer is made of existing sound insulation materials.

[0041] On the end faces of the square steel bars 9 on both sides of the prefabricated sound-absorbing panel 3, a mating convex stop 5 and a concave stop 6 are respectively provided. The connection between the prefabricated sound-absorbing panels 3 can be strengthened through the mutual nesting of the convex stop 5 and the concave stop 6. In this embodiment, mounting grooves are respectively provided on the end faces of the convex stop 5 and the concave stop 6. An eccentric hook 11 is installed in the mounting groove of the convex stop 5, and a pin 10 is installed in the mounting groove of the concave stop 6. The eccentric hook 11 can be cooperatively hooked on the pin 10, thereby quickly connecting adjacent prefabricated sound-absorbing panels 3.

[0042] The eccentric hook 11 and the pin 10 are components of an eccentric hook lock. The eccentric hook lock is a conventional accessory and can be directly purchased in the market. For example, Figure 7 and Figure 8 The figure shows a schematic diagram of the eccentric hook lock provided by the manufacturer, which includes two metal boxes. An eccentric hook 11 is arranged in one metal box, and a pin 10 is arranged in the other metal box. When installing in the prefabricated sound-absorbing panel 3 of this embodiment, the metal box is embedded in the mounting groove and then fixed by screws, so that the eccentric hook 11 and the pin 10 can be installed in the mounting groove, similar to installing a door lock. An operation hole 13 is provided on the side surface of the metal box where the eccentric hook 11 is located. The eccentric hook 11 can be rotated by rotating the operation hole 13 with an external Allen wrench. Therefore, a through hole 4 corresponding to the operation hole is provided on the corresponding side surface of the prefabricated sound-absorbing panel 3, so that the external Allen wrench can be inserted into the operation hole through the through hole 4. The through holes 4 of this embodiment are all located inside the sound-absorbing chamber structure.

[0043] In this embodiment, sealing rubber strips 7 are respectively arranged on both sides of the convex stop 5 and both sides of the concave stop 6. Through the sealing rubber strips 7, adjacent prefabricated sound-absorbing panels 3 form a sealed connection. The convex stop 5, the concave stop 6, and the sealing rubber strips 7 all extend along the length direction of the prefabricated sound-absorbing panel 3.

[0044] As Figure 5 and Figure 6 shown, when assembling adjacent prefabricated sound-absorbing panels 3 of this embodiment, the convex stop 5 and the concave stop 6 are directly nested, and then the eccentric hook 11 is rotated by an external Allen wrench, so that the eccentric hook 11 tightly hooks the pin 10, pulling adjacent prefabricated sound-absorbing panels 3 tightly. At this time, the sealing rubber strips 7 of adjacent prefabricated sound-absorbing panels 3 are abutted against each other and are appropriately compressed to form a tightened state. The locking distance of the eccentric hook lock selected in this embodiment can be adjusted between 0 and 10+mm.

[0045] In this embodiment, the wall 1 of the sound-absorbing chamber structure is connected to the ground through a sealing adhesive. The periphery of the capping 2 is directly lapped on the wall 1. The lower surface of the capping 2 is flush with the upper surface of the wall 1. The periphery of the capping 2 is flush with the outer surface of the wall 1. A sealing adhesive is also used for connection between the capping 2 and the wall 1.

[0046] Embodiment 2:

[0047] The difference between Embodiment 2 and Embodiment 1 is that: a conventional step rabbet is provided on the upper surface of the wall body in Embodiment 2, and the periphery of the top cover is fitted in the step rabbet and connected by sealant at the same time.

[0048] The connection structure of the wall body 1 and the top cover 2 in Embodiment 1 can meet the requirements of general anechoic chambers, while the connection structure of the wall body 1 and the top cover 2 in Embodiment 2 can meet the requirements of anechoic chambers with higher requirements.

[0049] Embodiment 3:

[0050] The difference between Embodiment 3 and Embodiment 1 is that: the wall body in Embodiment 3 is fixedly connected to the ground through a conventional L-shaped angle or U-shaped groove, and is connected by sealant at the same time, and the connection is more stable.

[0051] When connecting with an L-shaped angle, one side of the L-shaped angle is fixedly connected to the ground by bolts, and the other side is fixedly connected to the wall body by bolts. When connecting with a U-shaped groove, the U-shaped groove is fixedly connected to the ground by bolts, and the lower edge of the wall body is fitted and embedded in the U-shaped groove.

[0052] The above embodiments of the present utility model do not limit the protection scope of the present utility model. The implementation manners of the present utility model are not limited thereto. All kinds of modifications, substitutions or changes made to the above structure of the present utility model according to the above content of the present utility model, in accordance with the common general technical knowledge and customary means in the art, without departing from the above basic technical idea of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A modular quick-install anechoic chamber structure, comprising a wall and a roof, characterized in that: The wall and the ceiling are assembled by prefabricated sound-absorbing panels, and square steel bars are respectively arranged around the periphery of the prefabricated sound-absorbing panels, and the square steel bars are welded together to form a steel structure frame, and metal panels are respectively arranged on the two sides of the prefabricated sound-absorbing panels, and the four sides of the metal panels are respectively fixedly connected to the square steel bars, and sound-absorbing material layers are arranged between the metal panels; matching convex stoppers and concave stoppers are respectively arranged on the end faces of the square steel bars on both sides of the prefabricated sound-absorbing panels, and matching eccentric hooks and pins are respectively arranged; sealing strips are respectively arranged on the end faces of the square steel bars on both sides of the prefabricated sound-absorbing panels.

2. The modular quick-install anechoic chamber structure according to claim 1, characterized in that: The end surfaces of the square steel bars on both sides of the prefabricated sound-absorbing plate are respectively provided with mounting grooves, and the eccentric hooks and pins are respectively installed in the mounting grooves.

3. The modular quick-install anechoic chamber structure according to claim 1, characterized in that: The muffler chamber structure comprises the planar prefabricated muffler panels and the angled prefabricated muffler panels, and the angled prefabricated muffler panels are arranged at the angled connection between the adjacent walls.

4. The modular quick-install anechoic chamber structure according to claim 1, characterized in that: The sealing strips are arranged on both side edges of the convex stopper and both side edges of the concave stopper respectively.

5. The modular quick-install anechoic chamber structure according to claim 1, characterized in that: A sound insulation layer is also provided between the metal panels of the prefabricated sound-absorbing panel.

6. The modular quick-install anechoic chamber structure according to claim 1, characterized in that: The four sides of the metal panel are provided with bending edges, and the bending edges are hooked on the square steel bars and fixedly connected.

7. The modular quick-install anechoic chamber structure according to claim 1, characterized in that: The periphery of the capping is directly overlapped on the top of the wall and connected by a sealant, and the periphery of the capping is flush with the wall.

8. The modular quick-install anechoic chamber structure according to claim 1, characterized in that: A step stop is provided on the top of the wall, and the periphery of the capping is fitted in the step stop and connected by a sealant at the same time.

9. The modular quick-install anechoic chamber structure according to claim 1, characterized in that: The wall and the ground are connected by sealant.

10. The modular quick-install anechoic chamber structure according to claim 9, characterized in that: The wall and the ground are also fixedly connected via an L-shaped bracket or a U-shaped groove.

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