Ground screen structure of full anechoic room

Abstract

The utility model belongs to the field of earth screens, particularly relates to an earth screen structure of a full anechoic chamber, and aims to solve the problems that the existing earth screen structure is inconvenient to disassemble, assemble and recombine, so that the efficiency is low when the size of the anechoic chamber is adjusted or the anechoic chamber is rearranged, and the requirements of anechoic chambers with different sizes cannot be met. A door is hinged to one side of the full anechoic chamber body through a hinge. Two penetrating holes are symmetrically formed in each of the four sides of the plurality of frames; and the connecting assemblies are detachably arranged in the penetrating holes and are used for connecting and mounting the plurality of frames. Through the arrangement of the connecting assemblies, rapid, stable and detachable connection between the frames is achieved, the number and layout of the frames can be flexibly adjusted according to the size of an anechoic chamber, the assembling efficiency and adaptability of the ground screen structure are improved, and the acoustic performance of anechoic chambers of different sizes and the stability of the whole structure are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ground net technical field especially relates to a full sound attenuation room ground net structure. BACKGROUND

[0002] Full sound attenuation room ground net is a kind of overhead steel net structure, usually by high-strength steel wire or special metal grating is built, has the load-bearing, antiskid and security function, simultaneously designed with the characteristic of reducing ground reflected sound, can effectively scatter and absorb sound wave, reduce reflected wave energy, provide free sound field space for full sound attenuation room, ensure the accuracy of acoustics test.

[0003] At present, although the existing full sound attenuation room ground net structure meets the basic needs of sound attenuation room to some extent, but it is inconvenient to disassemble and reassemble, leading to low efficiency when adjusting the size of sound attenuation room or re-layout, difficult to adapt to the demand of sound attenuation room of different sizes. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in prior art that inconvenient disassembly and reassembly lead to low efficiency when adjusting the size of sound attenuation room or re-layout, and cannot meet the demand of sound attenuation room of different sizes, and provides a full sound attenuation room ground net structure.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A full sound attenuation room ground net structure, comprising:

[0007] Full sound attenuation room main body, the side of full sound attenuation room main body is hinged with door through hinge, and the inner wall four sides of full sound attenuation room main body and the inner side of door are all fixedly provided with multiple sound-absorbing sharp wedges that are uniformly distributed;

[0008] Frame, the frame is provided with multiple, and the four sides of multiple frames are all symmetrically provided with two through holes;

[0009] Connecting assembly, connecting assembly can be separated and arranged in through hole and be used for the connection between multiple frames.

[0010] In a possible design, the connecting assembly includes a pin rod that can be separated and arranged in the through hole, one end of the pin rod is provided with a slot, and the same shaft is fixedly arranged on the two sides of the slot, the shaft is rotatably provided with a stop block outside the slot, the other end of the pin rod is provided with a threaded groove outside, and a locking nut is threadedly connected to the threaded groove outside the pin rod.

[0011] In a possible design, the inner ring of multiple frames is fixedly provided with a metal mesh, and the frame and the metal mesh are both made of stainless steel.

[0012] In a possible design, the four sides of the plurality of frames are fixedly provided with rubber strips.

[0013] In a possible design, a keel is fixedly arranged above the dustproof mesh cloth on the inside of the full soundproof room body and above the bottom sound absorption wedge.

[0014] In a possible design, the bottom of each of the plurality of frames is fixedly provided with four mounting racks facilitating mounting with the keel.

[0015] In a possible design, the keel is fixedly provided with a rubber pad above the dustproof mesh cloth.

[0016] In this application, when starting to use, first install the sound absorption wedge on the inside of the full soundproof room body and the inner side of the door, then fixedly install the keel above the bottom sound absorption wedge on the inside of the full soundproof room body, lay the dustproof mesh cloth on the keel after the keel is installed, fixedly install the rubber pad on the keel above the dustproof mesh cloth after the dustproof mesh cloth is laid, and then assemble the frames.

[0017] According to the size of the inside of the full soundproof room, select a corresponding number of frames (the frame is integrally formed with the metal mesh inside the frame), align the through holes between two frames, then pass the threaded groove end of the pin rod through the through hole on one side of one frame, and pass the other end of the pin rod out of the through hole of the other frame, rotate the block through the rotating shaft to make it stand up, then install the locking nut on the threaded groove end of the pin rod, then rotate the locking nut, and slowly move the locking nut to the inside of the frame to tighten the pin rod, so that the block abuts against the inner wall of the frame when the pin rod is tightened, and the locking nut abuts against the inner wall of the other frame, so that the two frames are tightened, and the rubber strips thereon abut against each other, then take out a proper number of connecting assemblies to connect and install the frames one by one according to the above operation process and principle.

[0018] Then, lay the frames and the metal meshes thereon on the rubber pad on the keel after installation, and fix and install the frames and the keel through the mounting racks after laying.

[0019] The utility model has the following beneficial effects:

[0020] In the utility model, the quick, stable and detachable connection between the frames is realized through the arrangement of the connecting assembly, the number and layout of the frames can be flexibly adjusted according to the size of the soundproof room, the assembly efficiency and adaptability of the ground net structure are improved, and the acoustic performance of the soundproof room of different sizes and the stability of the overall structure are ensured.

[0021] The rubber pad and the rubber strip are arranged, direct contact between metals when personnel enters is effectively reduced, the stability of the structure is enhanced, noise generated when walking or operating is obviously reduced, and therefore the acoustic effect and overall performance of the full sound absorption chamber are optimized. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A whole structure schematic view of the full sound absorption chamber ground net structure is provided in the utility model.

[0023] Figure 2 A full sound absorption chamber main body sectional structure schematic view of the full sound absorption chamber ground net structure is provided in the utility model.

[0024] Figure 3 A whole part component separation structure schematic view of the full sound absorption chamber ground net structure is provided in the utility model.

[0025] Figure 4 A plurality of frame separation structure schematic view of the full sound absorption chamber ground net structure is provided in the utility model.

[0026] Figure 5 An A part amplification structure schematic view of the full sound absorption chamber ground net structure is provided in the utility model.

[0027] In the drawing: 1, full sound absorption chamber main body; 2, door; 3, sound absorption wedge; 4, keel frame; 5, dust screen cloth; 6, rubber pad; 7, frame; 8, metal net; 9, threaded hole; 10, pin rod; 11, rotating shaft; 12, stop block; 13, screw groove; 14, locking nut; 15, rubber strip; 16, mounting frame. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0029] Embodiment one

[0030] Referring to Figures 1-5 A ground net structure comprises:

[0031] The full sound absorption chamber main body 1 is a closed structure and is used for providing a quiet acoustic test environment. The full sound absorption chamber main body 1 is hingedly connected with a door 2 on one side through a hinge. The door 2 can be conveniently opened and closed so as to facilitate personnel to enter and exit and equipment to be carried. A plurality of sound absorption wedges 3 are fixedly arranged on the inner walls of four sides of the full sound absorption chamber main body 1 and the inner side of the door 2 and are uniformly distributed. The sound absorption wedges 3 are made of sound absorption material and have good sound absorption performance. The sound absorption wedges 3 can effectively absorb and reduce the propagation of sound, thereby improving the acoustic performance of the sound absorption chamber.

[0032] Next also includes a plurality of frames 7, these frames 7 for supporting and fixing the metal mesh 8, each frame 7 of four sides are symmetrically provided with two through holes 9, these through holes 9 for connecting the assembly through, to realize the connection and fixed between the frame 7, frame 7 and metal mesh 8 are made of stainless steel material, has good corrosion resistance and stability, can be used for a long time without easy to damage.

[0033] The connecting assembly is provided in the through hole 9, it is used for connecting a plurality of frames 7, form a whole structure, connecting assembly includes pin 10, pivot 11, stop block 12, screw groove 13 and locking nut 14, pin 10 can be separated from the inside of the through hole 9, its one end is provided with slot, the both sides of the slot are fixedly provided with the same pivot 11, the outside of the pivot 11 is rotatably provided with the stop block 12 in the slot, when the pin 10 is inserted into the through hole 9 of two adjacent frames 7, the stop block 12 can be rotated to make it stand up, to prevent the pin 10 from falling off, the other end of the pin 10 is externally provided with a screw groove 13, the screw groove 13 is threadedly connected with a locking nut 14, by rotating the locking nut 14, it can move to the inside of the frame 7, so as to tighten the pin 10 and fix two frames 7.

[0034] In order to improve the effect of silencing, the four sides of the plurality of frames 7 are also fixedly provided with rubber strips 15, which can reduce the sound leakage between the frames 7, and further improve the acoustic performance of the full anechoic chamber.

[0035] In the full anechoic chamber main body 1, above the bottom sound absorption wedge 3, fixedly provided with keel frame 4, keel frame 4 for supporting and fixing the dust screen cloth 5 and subsequent frame 7 and metal mesh 8, the dust screen cloth 5 is laid on the top of the keel frame 4, used to catch the falling things, put things into the sound absorption wedge 3 below, above the dust screen cloth 5, the keel frame 4 is also fixedly provided with rubber pad 6, which avoids the metal collision between the frame 7 and the keel frame 4, further improves the acoustic performance of the full anechoic chamber.

[0036] The application can be used in the full anechoic chamber ground net structure technical field, and can also be used in other fields applicable to the application.

[0037] Example two

[0038] Based on example one, example two also includes: a full anechoic chamber ground net structure, which is applied to the full anechoic chamber ground net structure technical field, the bottom of each frame 7 is rectangularly fixedly provided with four mounting frames 16, which facilitates the fixed installation of the frame 7 and the keel frame 4. During installation, the mounting frame 16 can be aligned with the corresponding position on the keel frame 4, and fixedly connected by bolts or other fasteners.

[0039] The above merely describes a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent substitutions or changes within the technical range disclosed by the present application, which should be covered within the scope of protection of the present application.

Claims

1. A full anechoic chamber ground mat structure, characterized by, Including: Full soundproof room body (1), one side of the full soundproof room body (1) is hinged with door (2) through hinge, the inner wall of the full soundproof room body (1) four sides and the inner side of door (2) are all fixedly provided with multiple sound absorption wedge (3) that are uniformly distributed; Frame (7) is provided with multiple, the four sides of multiple frame (7) are all symmetrically provided with two through holes (9); Connecting assembly, connecting assembly can be disconnected and is provided in through hole (9) and is used for the connection between multiple frame (7).

2. The full anechoic chamber ground plane structure of claim 1, wherein, The connecting assembly includes a pin rod (10) that can be disconnected and is provided in the through hole (9), one end of the pin rod (10) is provided with a slot, and the same rotating shaft (11) is fixedly arranged on the two sides of the slot, the rotating shaft (11) is rotatably provided with a stop block (12) outside the slot, the other end of the pin rod (10) is provided with a threaded groove (13) outside, and the pin rod (10) is threadedly connected with a locking nut (14) outside the threaded groove (13).

3. The full anechoic chamber ground net structure according to claim 1, characterized in that, The inner circle of multiple frame (7) is fixedly provided with metal mesh (8), and the frame (7) and the metal mesh (8) are both stainless steel materials.

4. The full anechoic chamber ground plane structure of claim 1, wherein, The four sides of multiple frame (7) are all fixedly provided with rubber strips (15).

5. The full anechoic chamber ground plane structure of claim 1, wherein, The keel frame (4) is fixedly arranged above the bottom sound absorption wedge (3) in the full soundproof room body (1), and the top of the keel frame (4) is paved with a dust screen cloth (5).

6. The full anechoic chamber ground plane structure of claim 1, wherein, The bottom of multiple frame (7) is fixedly provided with four mounting racks (16) for facilitating installation with the keel frame (4).

7. The full anechoic chamber ground plane structure of claim 5, wherein, The keel frame (4) is fixedly provided with a rubber pad (6) above the dust screen cloth (5).

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