CN218780550U - Sound-insulation noise-reduction protection device - Google Patents

Abstract

The utility model discloses a protector that makes an uproar falls gives sound insulation relates to the sound insulation and falls the technical field of making an uproar, including base, last casing, lower casing, connecting box and fan, the casing is installed on the base down, the connecting box is installed between internal wall of inferior valve and the outer wall of last casing, the utility model discloses an it makes an uproar to fall to the fan to go up casing, lower casing, connecting box, sound insulation panel and muffler, and the combination of at first connecting box and muffler both can make the outside air get into the inferior valve internal, can make the noise that the fan produced eliminate through the muffler again, still gives sound insulation to last casing, lower casing, connecting box through sound insulation panel in addition, realizes that dual syllable-dividing mode comes to fall the fan and makes an uproar, improves the sound insulation and noise reduction of fan, plays through damping device to fan cushioning effect, improves the stability of fan during operation.

Description

A sound insulation and noise reduction protective device

technical field

The utility model relates to the technical field of sound insulation and noise reduction, in particular to a sound insulation and noise reduction protection device.

Background technique

Sound insulation is the use of sound insulation structures to shield sound energy, thereby reducing the hazards of noise and sound radiation. Enclose the noisy device and effectively block the noise radiation to the surrounding environment, called the sound insulation cover. Sound insulation covers are often used for noise reduction of strong noise machines such as fans. Most of the existing sound insulation covers are just a box installed outside the fan without any other noise reduction measures. The sound insulation and noise reduction of the fan is only carried out through the cover. The external noise will still be very large, so the utility model proposes a sound insulation and noise reduction protection device for the fan.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a sound insulation and noise reduction protective device, which solves the problem that most of the existing sound insulation covers are just a box installed outside the fan without any other noise reduction measures. It is still a big technical problem to insulate and reduce the noise of the fan, so that the external noise will be transmitted.

In order to achieve the above objectives, the utility model is achieved through the following technical solutions: a sound insulation and noise reduction protection device, including a base, an upper casing, a lower casing, a connection box and a fan, the lower casing is installed on the base, and its It is characterized in that a connecting hole is opened on the upper wall of the upper casing, the connecting box is installed between the inner wall of the lower casing and the outer wall of the upper casing and in the connecting hole, the inner wall of the connecting box, the inner wall of the lower casing and the upper The inner walls of the housing are respectively equipped with sound-insulating plates, the upper and lower walls of the connection box are respectively provided with installation holes, a silencer is installed between the installation holes, and a shock absorber is installed on the base, and the shock absorber is located at the bottom In the housing, the fan is installed on the shock absorber, and the muffler input end in the connection box on the upper wall of the upper housing is installed with a flexible hose, and the flexible hose is connected with the fan output end.

Preferably, the sound-insulating board includes a sound-absorbing layer, a V-shaped plate is arranged inside the sound-absorbing layer, damping layers are arranged on both sides of the sound-absorbing layer, and steel plate layers are respectively arranged on the damping layers, close to the inside of the connecting box The steel plate layer on the wall, the inner wall surface of the lower casing and the inner wall surface of the upper casing is a steel plate, and the steel sheet layer far away from the inner wall surface of the connection box, the inner wall surface of the lower casing and the inner wall surface of the upper casing is a perforated plate.

Preferably, the shock absorbing device includes a load-bearing box, the load-bearing box is fixedly installed on the base, the upper end of the load-bearing box is an open structure, and chutes are respectively opened on the two side walls of the load-bearing box, and the chute Sliders are installed in the inner slide, bearing plates are fixedly installed between the sliders, the fan is fixedly installed on the wall surface of the bearing plate, a cylinder is fixedly installed on the inner lower wall of the bearing box, and the upper wall of the cylinder is opened There is a through hole, a strut is inserted into the through hole, the upper end of the strut is fixedly connected with the lower wall of the bearing plate, the lower end of the strut is located in the cylinder and a baffle is fixedly installed, and the baffle is provided with A number of oil holes, the cylinder is filled with damping oil, the first spring is fixedly installed between the baffle plate and the inner and lower walls of the cylinder, and the second spring is fixedly installed between the bearing plate and the upper and lower walls of the cylinder. The spring, the second spring is sleeved on the pole.

Preferably, ear plates are fixedly installed on the outer wall of the lower housing.

Preferably, docking holes are provided on the base and on both sides of the lower casing.

Preferably, a sealing ring is fixedly installed between the flexible hose and the connecting hole.

Beneficial effect

The utility model provides a sound insulation and noise reduction protection device, which solves the problem that most of the existing sound insulation covers are only a box installed outside the fan without any other noise reduction measures. Therefore, the external noise will still be a big technical problem. The utility model reduces the noise of the fan through the upper casing, the lower casing, the connection box, the sound insulation board and the silencer. Firstly, the combination of the connection box and the silencer The outside air can enter the lower casing, and the noise generated by the fan can be eliminated through the muffler. In addition, the upper casing, the lower casing, and the connection box are sound-insulated through the sound-proof plate to achieve double sound insulation for the fan. Noise reduction, improve the sound insulation and noise reduction effect of the fan, play a role in damping the fan through the shock absorber, and improve the stability of the fan when it is working.

Description of drawings

Fig. 1 is a front structural schematic diagram of a sound insulation and noise reduction protective device according to the utility model.

Fig. 2 is a structural schematic diagram of a sound-insulating board of a sound-insulating and noise-reducing protective device according to the present invention.

Fig. 3 is a structural schematic diagram of a shock absorbing device of a sound insulation and noise reduction protective device according to the utility model.

In the figure: 1. Base; 2. Upper shell; 3. Lower shell; 4. Connection box; 5. Fan; 6. Sound insulation board; 7. Muffler; 8. Flexible hose; 9. Sound-absorbing layer; 10 , V-shaped plate; 11, damping layer; 12, steel plate layer; 13, bearing box; 14, chute; 15, slider; 16, bearing plate; 17, cylinder; 18, pole; 19, baffle; 20. Oil hole; 21. First spring; 22. Second spring; 23. Ear plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-3, the utility model provides a technical solution: a sound insulation and noise reduction protection device, including a base 1, an upper casing 2, a lower casing 3, a connection box 4 and a fan 5, the lower casing 3 is installed on the base 1, and it is characterized in that a connection hole is opened on the upper wall of the upper case 2, and the connection box 4 is installed between the inner wall of the lower case 3 and the outer wall of the upper case 2 and in the connection hole , the inner wall surface of the connection box 4, the inner wall surface of the lower casing 3 and the inner wall surface of the upper casing 2 are respectively equipped with sound insulation panels 6, the upper and lower walls of the connection box 4 are respectively provided with installation holes, and the installation holes are installed There is a muffler 7, a shock absorber is installed on the base 1, the shock absorber is located in the lower casing 3, the fan 5 is installed on the shock absorber, the connection on the upper wall of the upper casing 2 A flexible hose 8 is installed at the input end of the muffler 7 in the box, and the flexible hose 8 is connected with the output end of the blower fan 5 .

Further, the sound-insulating board 6 includes a sound-absorbing layer 9, a V-shaped plate 10 is arranged inside the sound-absorbing layer 9, and a damping layer 11 is arranged on both sides of the sound-absorbing layer 9, and a steel plate layer 12 is respectively arranged on the damping layer 11, which is close to the inner wall of the connection box 4 , the steel plate layer 12 on the inner wall surface of the lower shell 3 and the inner wall surface of the upper shell 2 is a steel plate, and the steel plate layer 12 on the inner wall surface of the connection box 4, the inner wall surface of the lower shell 3, and the inner wall surface of the upper shell 2 is The perforated plate absorbs noise through the sound-absorbing layer 9. The sound-absorbing layer 9 is made of sound-absorbing cotton. The V-shaped plate 10 provided in the sound-absorbing layer 9 can make the noise rebound and consume in the V-shaped plate 10. The damping layer 11 suppresses the steel plate The layer 12 produces resonance and matching effects, and the steel plate layer 12 plays a preliminary role in absorbing and blocking noise.

Further, the shock absorbing device includes a bearing box 13, which is fixedly installed on the base 1, and the upper end of the bearing box 13 is an open structure, and a chute 14 is respectively opened on the two side walls of the bearing box 13, and slidingly installed in the chute 14. There are sliders 15, and a bearing plate 16 is fixedly installed between the sliders 15, the fan 5 is fixedly installed on the upper wall of the bearing plate 16, and a cylinder 17 is fixedly installed on the inner lower wall of the bearing box 13, and a through hole is opened on the upper wall of the cylinder 17 , a strut 18 is inserted into the through hole, the upper end of the strut 18 is fixedly connected to the lower wall of the bearing plate 16, the lower end of the strut 18 is located in the cylinder 17 and a baffle 19 is fixedly installed, and a number of oil passages are provided on the baffle 19 The hole 20 is filled with damping oil in the cylinder, the first spring 21 is fixedly installed between the baffle plate 19 and the inner lower wall of the cylinder 17, and the second spring is fixedly installed between the bearing plate 16 and the outer upper wall of the cylinder 17 22. The second spring 22 is set on the pole 18, and the fan 5 exerts downward pressure on the bearing plate 16, so that the bearing plate compresses the first spring 21 and the second spring 22, and the first spring 21 and the second spring 22 are deformed And then play a damping effect, at the same time, the baffle plate 19 moves downward, and then makes the damping oil move from the bottom of the baffle plate 19 to the top of the baffle plate 19 through the oil through hole 20, and then plays a damping role, preventing the first spring from 21 and the second spring 22 bounce back repeatedly.

Further, ear plates 23 are fixedly installed on the outer wall of the lower case 3 , and the ear plates 23 facilitate the connection between the lower case 3 and the base 1 through external bolts.

Further, docking holes are provided on the base 1 and on both sides of the lower housing 3 , through which the base 1 is connected to the connection end surface under the action of external bolts.

Further, a sealing ring is fixedly installed between the flexible hose 8 and the connecting hole, and the sealing ring plays a role of sealing the joint of the flexible hose 8 .

Its detailed connection means is a well-known technology in the art. The following mainly introduces the working principle and process, and the specific work is as follows.

Embodiment: According to the drawings in the specification, it can be seen that when in use, the output end of the fan 5 is connected to the flexible hose 8, and when the fan 5 is working, the outside air enters the lower casing 3 through the inlet end of the muffler 7, and Enter the input end of the fan 5, lead the flexible hose 8 through the output end of the fan 5, and discharge it to the outside. During this process, the noise is reduced by the muffler 7 to reduce the impact of the noise on the outside, and part of the noise is transmitted to the sound insulation board 6 When going up, the steel plate in the steel plate layer 12 acts as a preliminary reflection of the noise, and the perforated plate in the steel plate layer 12 acts as a sound absorber. At this time, the noise enters the damping layer 11, and the damping layer 11 also absorbs and reflects the noise. The damping layer 11 is mainly used to suppress the resonance and matching effect of the steel plate layer 12. At this time, the noise enters the sound-absorbing layer 9. The sound-absorbing layer 9 uses sound-absorbing cotton, and the noise is transmitted to the V-shaped plate 10. Rebound consumption, and then play a further noise reduction effect, when the fan 5 outputs the wind, the wind passes through the muffler 7 to reduce the noise of the output of the fan 5;

When the blower fan 5 vibrates, the bearing plate 16 is subjected to a downward force, and the bearing plate 16 moves downward along the path of the chute 14 under the action of the slider 15. At this time, the second spring 22 is compressed by force, and then the bearing plate 16 Push the strut 18 down. The strut 18 pushes the baffle 19 downward, thereby compressing the first spring 21 under force. At this time, the first spring 21 and the second spring 22 are deformed to play a shock absorbing role. At this time, the damping oil under the baffle 19 Moving through the oil hole 20 to the top of the baffle plate 19 , since the damping oil is relatively viscous, it plays a damping role and prevents the reciprocating rebound of the first spring 21 and the second spring 22 .

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them.

Claims (6)

1. The utility model provides a protector that makes an uproar falls gives sound insulation, includes base (1), goes up casing (2), casing (3) down, connecting box (4) and fan (5), install on base (1) casing (3) down, its characterized in that, go up casing (2) and go up the wall and seted up the connecting hole, connecting box (4) are installed between casing (3) internal face and last casing (2) outer wall down and in the connecting hole, install on connecting box (4) internal face, casing (3) internal face down and last casing (2) internal face respectively and give sound insulation panel (6), the mounting hole has been seted up respectively to the wall about connecting box (4), install muffler (7) between the mounting hole, install damping device on base (1), damping device is located casing (3) down, fan (5) are installed on damping device, flexible hose (8) are installed to muffler (7) input in the connecting box on last casing (2) the wall, flexible hose (8) are connected with fan (5) output.

2. A sound insulation and noise reduction protection device according to claim 1, wherein the sound insulation plate (6) comprises a sound absorption layer (9), a V-shaped plate (10) is arranged in the sound absorption layer (9), damping layers (11) are arranged on two sides of the sound absorption layer (9), steel plate layers (12) are respectively arranged on the damping layers (11), the steel plate layers (12) close to the inner wall surface of the connecting box (4), the inner wall surface of the lower shell (3) and one side of the inner wall surface of the upper shell (2) are steel plates, and the steel plate layers (12) far away from the inner wall surface of the connecting box (4), the inner wall surface of the lower shell (3) and one side of the inner wall surface of the upper shell (2) are perforated plates.

3. An acoustic noise-reduction guard according to claim 1, characterized in that the damping means comprise a carrying case (13), the bearing box (13) is fixedly arranged on the base (1), the upper end of the bearing box (13) is of an open structure, the two side wall surfaces in the bearing box (13) are respectively provided with a sliding chute (14), the sliding grooves (14) are internally provided with sliding blocks (15) in a sliding way, a bearing plate (16) is fixedly arranged between the sliding blocks (15), the fan (5) is fixedly arranged on the upper wall surface of the bearing plate (16), a cylinder body (17) is fixedly arranged on the inner lower wall surface of the bearing box (13), a through hole is arranged on the upper wall surface of the cylinder body (17), a supporting rod (18) is inserted in the through hole, the upper end of the support rod (18) is fixedly connected with the lower wall surface of the bearing plate (16), the lower end of the supporting rod (18) is positioned in the cylinder body (17) and is fixedly provided with a baffle plate (19), the baffle (19) is provided with a plurality of oil through holes (20), damping oil is filled in the cylinder body, a first spring (21) is fixedly arranged between the baffle plate (19) and the inner lower wall surface of the cylinder body (17), and a second spring (22) is fixedly installed between the bearing plate (16) and the outer upper wall surface of the cylinder body (17), and the second spring (22) is sleeved on the supporting rod (18).

4. A sound-insulating, noise-reducing and protective device according to claim 1, characterized in that the outer wall of said lower shell (3) is fixedly provided with ear plates (23).

5. A sound-insulating and noise-reducing guard as claimed in claim 1, characterized in that the base (1) has butt holes on both sides of the lower housing (3).

6. A sound-insulating and noise-reducing guard as claimed in claim 1, characterized in that a sealing ring is fixedly mounted between the flexible hose (8) and the attachment hole.

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