Sound insulation and shielding two-in-one mechanism equipment

Abstract

The utility model relates to the technical field of 5G communication product testing, and discloses sound insulation and shielding two-in-one mechanism equipment which comprises an outer box and an inner box, the outer box comprises an outer isolation box and an outer box door, and the outer box door and the outer isolation box form a first sound insulation cavity. The first sound insulation cavity comprises a first cold-rolled plate, a first sound insulation damping pad, a first sound absorption plate, an air isolation layer, a first acrylic plate, a second sound insulation damping pad, a second cold-rolled plate and a second sound absorption plate which are sequentially overlapped, the inner box comprises an inner isolation box and an inner box door, and the inner box door and the inner isolation box form a second sound insulation cavity. The second sound insulation cavity is formed in an inner cavity of the first sound insulation cavity, and wave-absorbing cotton, a copper net, a third sound-absorbing plate, a second acrylic plate, a fourth sound-absorbing plate, a third sound insulation damping pad and a third cold-rolled plate are sequentially stacked in the second sound insulation cavity from inside to outside. According to the utility model, the isolation effect of a sound insulation test at the frequency band of 100Hz can reach 70db to 80db.

Description

TECHNICAL FIELD

[0001] The utility model relates to 5G communication product test technical field especially shielding two unification mechanism equipment of sound insulation. BACKGROUND

[0002] At present, the sound insulation low frequency performance of the sound insulation box for acoustic test in domestic is not high, with the precision design of sound and electricity product, the low frequency performance requirement of sound insulation box is higher and higher, can satisfy the test demand of production line. The sound in low frequency 100Hz can not solve its penetrability by increasing wall thickness, so the conventional box is very heavy and occupies space, and still can not reach the test requirement. Others have done similar scheme, but the radio frequency can only reach 6GHz, can not reach 40GHz frequency required in 5G test.

[0003] The sound insulation performance of the sound insulation box is greater than 70dB at 100Hz~10KHz, millimeter wave wave absorbing foam is pasted in the box, the working frequency is 700MHz-18GHz, and the isolation degree reaches more than 70dB. The volume of the traditional sound insulation box is large, and the total weight is heavy. The isolation effect of the traditional sound insulation box can only reach 15db-40db in the frequency band of 100Hz, and it is difficult to meet the test demand. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the deficiencies of the prior art, and provides a sound insulation shielding two-in-one mechanism device.

[0005] The utility model discloses a sound insulation shielding two-in-one mechanism device, which comprises an outer box and an inner box, the outer box comprises an outer isolation box and an outer box door, the outer box door and the outer isolation box form a first sound insulation cavity, the first sound insulation cavity comprises first cold-rolled plates, first sound insulation damping pads, first sound absorption plates, air isolation layers, first acrylic plates, second sound insulation damping pads, second cold-rolled plates and second sound absorption plates which are overlapped in sequence, the inner box comprises an inner isolation box and an inner box door, the inner box door and the inner isolation box form a second sound insulation cavity, the second sound insulation cavity is installed in the inner cavity of the first sound insulation cavity, and the second sound insulation cavity is sequentially provided with wave absorbing cotton, copper meshes, third sound absorption plates, second acrylic plates, fourth sound absorption plates, third sound insulation damping pads and third cold-rolled plates from inside to outside.

[0006] More preferably, the inner wall of the outer isolation box is provided with a sliding rail structure matched with the inner isolation box.

[0007] More preferably, the utility model further comprises an air damping shock absorber, the air damping shock absorber is arranged at the bottom of the inner isolation box and installed in the inner cavity of the outer isolation box.

[0008] More preferably, the utility model further comprises a suspension ring, and the suspension ring is installed at the top of the inner isolation box.

[0009] More preferably, the outer isolation box is provided with an outer box wire passage.

[0010] More preferably, the inner isolation box is provided with an inner box wire passage.

[0011] More preferably, the bottom of the outer isolation box is provided with four rollers with shock absorbers.

[0012] More preferably, the shock absorber comprises a spring or a rubber block.

[0013] More preferably, the wave-absorbing cotton is polyurethane sponge.

[0014] The utility model has the following advantages and beneficial effects relative to the prior art:

[0015] The utility model discloses a double-layer box structure and the inner box body is the square box body structure of floating arrangement, improves the isolation performance, and the isolation effect can reach 70db-80db in 100Hz frequency band test. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the schematic diagram of the outer box of the utility model soundproofing and shielding two-in-one mechanism equipment;

[0017] Figure 2 It is the schematic diagram of the outer box of the utility model soundproofing and shielding two-in-one mechanism equipment;

[0018] Figure 3 It is the schematic diagram of the inside of the utility model soundproofing and shielding two-in-one mechanism equipment;

[0019] Figure 4 It is the right view of the outer box of the utility model soundproofing and shielding two-in-one mechanism equipment;

[0020] Figure 5 It is Figure 4 The sectional view at B;

[0021] Figure 6 It is Figure 5 The partial close-up view at P;

[0022] Figure 7 It is Figure 5 The partial close-up view at Q;

[0023] Figure 8 It is the front view of the outer box of the utility model soundproofing and shielding two-in-one mechanism equipment;

[0024] Figure 9 It isFigure 8 A sectional view at C;

[0025] Figure 10 Figure 9 An enlarged view at R;

[0026] Figure 11 Figure 2 An enlarged view at O;

[0027] Figure 12 It is the inner box schematic view of the soundproof shielding two-in-one mechanism equipment of the utility model;

[0028] Figure 13 It is the inner box schematic view of the soundproof shielding two-in-one mechanism equipment of the utility model.

[0029] The marking of each component in the drawing: 1-outer box; 11-outer isolation box; 1101-first cold-rolled plate; 1102-first sound insulation and shock absorption pad; 1103-first sound absorption plate; 1104-air isolation layer; 1105-first acrylic plate; 1106-second sound insulation and shock absorption pad; 1107-second cold-rolled plate; 1108-second sound absorption plate; 12-outer box door; 13-sliding rail; 14-air damping shock absorber; 15-shock absorber; 16-roller; 17-outer box wire passage; 2-inner box; 21-inner isolation box; 2101-wave absorbing cotton; 2102-copper mesh; 2103-third sound absorption plate; 2104-second acrylic plate; 2105-fourth sound absorption plate; 2106-third sound insulation and shock absorption pad; 2107-third cold-rolled plate; 22-inner box door; 23-air damping shock absorber; 24-hanging ring; 25-inner box wire passage. DETAILED DESCRIPTION

[0030] The utility model will be described in further detail in combination with the drawings and specific embodiments, and the embodiments cannot be described one by one here, but the implementation mode of the utility model is not limited to the following embodiments.

[0031] As Figures 1-13 shown, the soundproof shielding two-in-one mechanism device includes an outer box 1 and an inner box 2, the top of the inner box 2 is provided with four hanging rings 24, and the bottom of the inner box 2 is provided with four air damping shock absorbers 14. The four hanging rings 24 at the top of the inner box 2 are connected with the top of the outer box 1 through steel wire ropes or nylon ropes, and the bottom of the inner box 2 is installed in the inner cavity of the outer box 1 through the four air damping shock absorbers 14.

[0032] The outer box 1 and the inner box 2 both play a role in reducing noise. The hanging ring 24 is used for connecting the nylon rope or the steel wire rope with the inner box 2, so as to reduce the influence of external vibration on the inner box 2. The air damping shock absorber 14 isolates the noise interference caused by the vibration transmission from the outside. The first sound-absorbing cotton plays a role in sound absorption and noise reduction.​​

[0033] The outer box 1 comprises an outer isolation box 11 and an outer box door 12. The outer isolation box 11 is provided with a first opening. One end of the outer box door 12 is hinged to one side of the first opening, and the other end of the outer box door 12 is connected to the other end of the first opening through a lock catch. The inner wall of the outer isolation box 11 is provided with a sliding rail structure 13 matched with the inner isolation box 21. The outer box door 12 and the outer isolation box 11 form a first soundproof cavity. The first soundproof cavity has a total of six wallboards, each of which is stacked with a first cold-rolled plate 1101, a first sound insulation and shock absorption pad 1102, a first sound absorption plate 1103, a first acrylic plate 1105, a second sound insulation and shock absorption pad 1106, a second cold-rolled plate 1107, and a second sound absorption plate 1108. Two outer box wire passing channels 17 are provided on the side of the outer isolation box 11, and both of them are in communication with the inner cavity of the outer isolation box 11. The outer box wire passing channel 17 is covered with a channel wire cover at the end leading to the outside. Four rollers 16 are provided at the bottom of the outer isolation box 11, and a shock absorber 15 is provided on one side of the four rollers 16. The shock absorber 15 is a spring or a rubber block.

[0034] The outer isolation box 11 plays a soundproof role. The outer box door 12 facilitates the placement of the inner box 2 into the first soundproof cavity. The vacuum layer enables the low-frequency soundproof box to have a significant sound insulation advantage in the 100Hz low-frequency band, which can improve the insulation effect by 10dB, making up for the sound insulation shortcomings of the conventional structure. The first soundproof cavity includes a first cold-rolled plate 1101, a first sound insulation and shock absorption pad 1102, a first sound absorption plate 1103, an air isolation layer 1104, a first acrylic plate 1105, a second sound insulation and shock absorption pad 1106, a second cold-rolled plate 1107, and a second sound absorption plate 1108. The outer box wire passing channel 17 is used for passing wires or signal lines. The channel wire cover reduces the transmission of sound from the outer box wire passing channel 17 to the first soundproof cavity. The rollers 16 facilitate the movement of the outer box 1. The shock absorber 15 reduces the transmission of external vibrations to the outer isolation box 11.

[0035] The inner box 2 comprises an inner isolation box 21 and an inner box door 22. The inner isolation box 21 is provided with a second opening. The bottom of the inner box door 22 is slidably mounted on the inner isolation box 21, and the top of the inner box door 22 is connected to the inner isolation box 21 through a lock catch. The inner box door 22 and the inner isolation box 21 form a second soundproof cavity. The second soundproof cavity has a total of six wallboards, each of which is stacked with a wave-absorbing cotton 2101, a copper mesh 2102, a third sound absorption plate 2103, a second acrylic plate 2104, a fourth sound absorption plate 2105, a third sound insulation and shock absorption pad 2106, and a third cold-rolled plate 2107. Three inner box wire passing channels 25 are provided on the back of the inner isolation box 21. The inner cavity of the inner isolation box 21 is in communication with the inner cavity of the outer box 1 through the inner box wire passing channel 25. The end of the inner box wire passing channel 25 connected to the inner cavity of the outer box 1 is covered with a channel wire cover.

[0036] The inner isolation box 21 plays a sound insulation role to avoid interference with the noise test of the electrical product. The inner box door 22 is convenient for the electrical product to enter into the second sound insulation cavity. The inner box wire passage 25 is convenient for the wire or signal line to enter into the inner box 2 to be connected with the electrical product. The passage wire cover reduces the noise entering into the inner box wire passage 25.

[0037] The above specific embodiment is the preferred embodiment of the utility model, and cannot limit the utility model, and any change or other equivalent replacement mode of other any technical scheme without departing from the utility model is contained in the protection scope of the utility model.

Claims

1. A soundproofing and shielding two-in-one mechanism apparatus, characterized by: The application relates to a soundproofing box, which comprises an outer box (1) and an inner box (2), the outer box (1) comprises an outer isolation box (11) and an outer box door (12), the outer box door (12) and the outer isolation box (11) constitute a first soundproofing cavity, the first soundproofing cavity comprises a first cold-rolled plate (1101), a first soundproofing and damping pad (1102), a first sound-absorbing plate (1103), an air isolation layer (1104), a first acrylic plate (1105), a second soundproofing and damping pad (1106), a second cold-rolled plate (1107) and a second sound-absorbing plate (1108) which are overlapped in sequence, the inner box (2) comprises an inner isolation box (21) and an inner box door (22), the inner box door (22) and the inner isolation box (21) constitute a second soundproofing cavity, the second soundproofing cavity is installed in an inner cavity of the first soundproofing cavity, and the second soundproofing cavity is sequentially provided with wave-absorbing cotton (2101), a copper mesh (2102), a third sound-absorbing plate (2103), a second acrylic plate (2104), a fourth sound-absorbing plate (2105), a third soundproofing and damping pad (2106) and a third cold-rolled plate (2107) from inside to outside.

2. The soundproofing and shielding two-in-one mechanism apparatus according to claim 1, wherein: The inner wall of the outer isolation box (11) is provided with a sliding rail structure (13) matched with the inner isolation box (21).

3. The soundproofing and shielding two-in-one mechanism apparatus according to claim 1, wherein: The soundproofing box further comprises an air damping shock absorber (14) arranged at the bottom of the inner isolation box (21) and installed in the inner cavity of the outer isolation box (11).

4. The soundproofing and shielding two-in-one device of claim 1, wherein: The soundproofing box further comprises a suspension ring (24) installed at the top of the inner isolation box (21).

5. The soundproofing and shielding two-in-one mechanism apparatus according to claim 1, wherein: The outer isolation box (11) is provided with an outer box wire passing channel (17).

6. The soundproofing and shielding two-in-one device of claim 1, wherein: The inner isolation box (21) is provided with an inner box wire passing channel (25).

7. The soundproofing and shielding two-in-one device of claim 1, wherein: The bottom of the outer isolation box (11) is provided with four rollers (16) with shock absorbers (15).

8. The soundproofing and shielding two-in-one device of claim 7, wherein: The shock absorber (15) comprises a spring or a rubber block.

9. The soundproofing and shielding two-in-one device of claim 1, wherein: The wave-absorbing cotton (2101) is polyurethane sponge.

Images