CN211821126U

CN211821126U - Sound-insulation noise-reduction ventilating pipe

Info

Publication number: CN211821126U
Application number: CN202020424217.6U
Authority: CN
Inventors: 孙杰
Original assignee: Langfang Kangjie Ventilation Material Co ltd
Current assignee: Langfang Kangjie Ventilation Material Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-10-30
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a give sound insulation and fall ventilation pipe of making an uproar belongs to ventilation pipe technical field. The ventilation pipe includes the body, and the body includes the inlayer, and the outside of inlayer is provided with the skin, is provided with the puigging between inlayer and the skin. The puigging includes the acoustic celotex board and inhales the sound cotton, and the acoustic celotex board is located to inhale between sound cotton and the inlayer, and the even a plurality of that is provided with on the acoustic celotex board inhales the sound hole. A wave-shaped reflecting plate is arranged between the sound absorbing cotton and the outer layer. The pipe body comprises a first pipe body and a second pipe body which are connected through a connecting seat, the distance between one end, close to the second pipe body, of the first pipe body and one end, close to the first pipe body, of the inner layer of the first pipe body, of the first pipe body protrudes one section by one section, the distance between one end, close to the first pipe body, of the second pipe body and one end, close to the inner layer of. The utility model adopts the above structure give sound insulation and fall the ventilation pipe of making an uproar, can solve the poor problem of current ventilation pipe sound insulation effect.

Description

Sound-insulation noise-reduction ventilating pipe

Technical Field

The utility model belongs to the technical field of the ventilation pipe technique and specifically relates to a ventilation pipe of making an uproar falls in giving sound insulation is related to.

Background

The ventilation pipe is a metal or composite pipeline for ventilation and air conditioning engineering of industrial and civil buildings, is used for air circulation, and sends indoor harmful gas or outdoor fresh air to the outside or the inside of a room through the ventilation pipe. Galvanized iron is mostly selected for use in the use of the existing ventilation pipe, the air pipe made of the galvanized iron is easy to process, but the galvanized iron ventilation pipe is extremely poor in sound insulation effect and completely does not meet the sound insulation requirement in industrial production.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a give sound insulation and fall ventilation pipe of making an uproar solves the current poor problem of ventilation pipe sound insulation effect.

In order to achieve the purpose, the utility model provides a sound-insulation noise-reduction ventilation pipe, which comprises a pipe body, wherein the pipe body comprises an inner layer, an outer layer is arranged outside the inner layer, and a sound-insulation layer is arranged between the inner layer and the outer layer;

the sound insulation layer comprises a sound insulation board and sound absorption cotton, the sound insulation board is positioned between the sound absorption cotton and the inner layer, and a plurality of sound absorption holes are uniformly formed in the sound insulation board;

a wave-shaped reflecting plate is arranged between the sound-absorbing cotton and the outer layer;

the pipe body comprises a first pipe body and a second pipe body which are connected through a connecting seat, the distance between one end, close to the second pipe body, of the first pipe body and one end, close to the first pipe body, of the inner layer of the first pipe body, of the first pipe body protrudes one section by one section, the distance between one end, close to the first pipe body, of the second pipe body and one end, close to the inner layer of.

Preferably, the inner layer is a galvanized steel plate or an aluminum plate, and a spiral support ring is arranged on the inner surface of the inner layer; the outer layer is a galvanized steel plate or an aluminum plate.

Preferably, the reflective plate is a high-gloss metal plate.

Preferably, the distance that the inner layer protrudes out of the tube body I is equal to the distance that the inner layer protrudes into the tube body II.

Preferably, the distance of the inner layer from the pipe body is 5-10 cm.

Preferably, the connecting seat includes splint one and splint two, and the one end of splint one is articulated with the one end of splint two, and the other end of splint one and the other end of splint two all are provided with the engaging lug, are provided with the connecting hole on the engaging lug, and the bolt passes the connecting hole with the other end fixed connection of splint one and splint two.

Preferably, the inner surfaces of the first clamping plate and the second clamping plate are provided with rubber buffer pads.

The utility model discloses a sound insulation noise reduction ventilation pipe, which is provided with a sound insulation layer between an inner layer and an outer layer, and a sound insulation plate of the sound insulation layer firstly absorbs sound through sound absorption to carry out preliminary noise reduction; then, sound is further absorbed through the sound absorption cotton, and further noise reduction is realized; the sound penetrating through the sound-absorbing cotton is reflected back to the sound-absorbing cotton through the reflecting plate for repeated absorption; the sound insulation and noise reduction effects are good. The inner layer of the first pipe body is inserted into the second pipe body, and the first pipe body is connected with the second pipe body through the connecting seat, so that the sound insulation effect and the connection strength of the joint of the first pipe body and the second pipe body are improved.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a sound-insulating noise-reducing ventilation duct of the present invention;

fig. 2 is a schematic cross-sectional structure view of an embodiment of a sound-insulating and noise-reducing ventilation duct according to the present invention;

FIG. 3 is a schematic view of a connection structure of a first pipe body and a second pipe body of an embodiment of the sound-insulating noise-reducing ventilation pipe of the present invention;

fig. 4 is the utility model relates to a give sound insulation and fall connecting seat structure schematic diagram of ventilation pipe embodiment of making an uproar.

Reference numerals

1. A first pipe body; 2. a second pipe body; 3. a support ring; 4. an inner layer; 5. a sound insulating board; 6. a sound absorption hole; 7. sound-absorbing cotton; 8. a reflective plate; 9. an outer layer; 10. a connecting seat; 11. a bolt; 12. a first clamping plate; 13. a second clamping plate; 14. a cushion pad; 15. and (5) connecting lugs.

Detailed Description

Examples

Fig. 1 is the utility model relates to a give sound insulation and fall the structural schematic diagram of making an uproar ventilation pipe embodiment, fig. 2 is the utility model relates to a give sound insulation and fall the cross sectional structure schematic diagram of making an uproar ventilation pipe embodiment, fig. 3 is the utility model relates to a give sound insulation and fall the body of making an uproar ventilation pipe embodiment and two connection structure schematic diagrams of body, fig. 4 is the utility model relates to a give sound insulation and fall the connecting seat structural schematic diagram of making an uproar ventilation pipe embodiment. As shown in the figure, the ventilation pipe of making an uproar falls in giving sound insulation, includes the body, and the body includes inlayer 4, and inlayer 4 is galvanized steel sheet or aluminum plate, fixes being provided with spiral support ring 3 on the internal surface of inlayer 4, and support ring 3 and inlayer 4 welded fastening are connected. The support ring 3 is made of metal and is used for improving the strength of the inner layer 4. An outer layer 9 is arranged outside the inner layer 4, and the outer layer 9 is a galvanized steel plate or an aluminum plate. Be provided with the puigging between inlayer 4 and the skin 9, the puigging includes acoustic celotex board 5 and inhales the sound cotton 7, and acoustic celotex board 5 is located to inhale between sound cotton 7 and the inlayer 4, and the even circular shape of a plurality of that is provided with inhales sound hole 6 on the acoustic celotex board 5. When sound passes through the sound insulation board 5, part of sound energy can be absorbed by the sound absorption holes 6, and the purpose of primary noise reduction is achieved. The sound that passes acoustic celotex board 5 gets into inhales cotton 7 layers of sound, inhales cotton 7 and has good sound effect of inhaling, and further absorption sound energy reaches the purpose of making an uproar. A wave-shaped reflecting plate 8 is arranged between the sound absorption cotton 7 and the outer layer 9, and the reflecting plate 8 is a high-light metal plate. The transmitting plate can reflect the sound of penetrating sound absorption cotton 7 back again and inhale in the sound cotton 7, makes sound absorption cotton 7 carry out repeated absorption to sound, improves the effect of making an uproar that gives sound insulation and fall. The inner surfaces of the reflecting plate 8 and the outer layer 9 are fixedly connected, and sound insulation cotton can be filled in gaps between the wavy reflecting plate 8 and the outer layer 9, so that sound is further absorbed, and a certain supporting effect is provided for the reflecting plate 8.

The tube body comprises a tube body I1 and a tube body II 2 which are connected through a connecting seat 10, wherein one end inner layer 4 of the tube body I1 close to the tube body II 2 protrudes a distance from the tube body I1, and one end inner layer 4 of the tube body II 2 close to the tube body I1 is recessed a distance from the tube body II 2. The distance that the inner layer 4 protrudes from the tube body 1 is not more than the distance that the inner layer 4 protrudes from the tube body 2, and the distance that the inner layer 4 protrudes from the tube body 1 is equal to the distance that the inner layer 4 protrudes from the tube body 2. The inner layer 4 projects from the tube body 1 by a distance of typically 5-10 cm. Therefore, when the first pipe body 1 is connected with the second pipe body 2, the inner layer 4 at one end of the first pipe body 1 is inserted into the second pipe body 2, and on one hand, the connection strength and the sealing property of the first pipe body 1 and the second pipe body 2 are improved; on the other hand has also improved the syllable-dividing effect of body one 1 with body two 2 junction, avoids sound direct transmission away from the inlayer 4 junction.

In this embodiment, the first pipe body 1 and the second pipe body 2 are only relative, and the first pipe body 1 and the second pipe body 2 can be of the same structure, one end of which is convex toward the inner layer 4, and the other end of which is concave toward the inner layer 4, so as to facilitate the connection of adjacent pipe sections.

The connecting seat 10 comprises a first clamping plate 12 and a second clamping plate 13, wherein one end of the first clamping plate 12 is hinged with one end of the second clamping plate 13 through a hinge or a hinge. The other end of the first clamping plate 12 and the other end of the second clamping plate 13 are both provided with a connecting lug 15, a connecting hole is formed in the connecting lug 15, and the bolt 11 penetrates through the connecting hole to fixedly connect the other ends of the first clamping plate 12 and the second clamping plate 13. The first clamping plate 12 and the second clamping plate 13 wrap the joint of the first pipe body 1 and the second pipe body 2, and the first pipe body 1 and the second pipe body 2 are clamped between the first clamping plate 12 and the second clamping plate 13, so that the first pipe body 1 and the second pipe body 2 are reliably connected. The inner surfaces of the first clamping plate 12 and the second clamping plate 13 are provided with rubber buffer cushions 14, and the buffer cushions 14 are fixedly glued on the first clamping plate 12 and the second clamping plate 13, so that the clamping plates are prevented from directly contacting the pipe body and damaging the pipe body; in addition, the first pipe body 1 and the second pipe body 2 can be in full contact with the first clamping plate 12 and the second clamping plate 13, the sealing effect is improved, and a certain noise reduction effect is achieved. In order to improve the sound insulation effect at the joint of the first pipe body 1 and the second pipe body 2, a layer of sound insulation board 5 or sound insulation cotton can be arranged between the buffer pad 14 and the first clamping board 12 and the second clamping board 13.

Therefore, the utility model adopts the above structure give sound insulation and fall the ventilation pipe of making an uproar, can solve the poor problem of current ventilation pipe sound insulation effect.

The above are specific embodiments of the present invention, but the scope of protection of the present invention should not be limited thereto. Any changes or substitutions which can be easily conceived by those skilled in the art within the technical scope of the present invention are covered by the protection scope of the present invention, and therefore, the protection scope of the present invention is subject to the protection scope defined by the claims.

Claims

1. A noise reduction ventilation pipe gives sound insulation, its characterized in that: the pipe comprises a pipe body, wherein the pipe body comprises an inner layer, an outer layer is arranged outside the inner layer, and a sound insulation layer is arranged between the inner layer and the outer layer;

2. A sound-insulating and noise-reducing ventilation duct according to claim 1, characterized in that: the inner layer is a galvanized steel plate or an aluminum plate, and a spiral support ring is arranged on the inner surface of the inner layer; the outer layer is a galvanized steel plate or an aluminum plate.

3. A sound-insulating and noise-reducing ventilation duct according to claim 1, characterized in that: the reflecting plate is a high-light metal plate.

4. A sound-insulating and noise-reducing ventilation duct according to claim 1, characterized in that: the distance of the first inner layer protruding out of the tube body is equal to the distance of the second inner layer recessed into the tube body.

5. A sound-insulating and noise-reducing ventilation duct according to claim 1, characterized in that: the distance of the inner layer protruding out of the pipe body is 5-10 cm.

6. A sound-insulating and noise-reducing ventilation duct according to claim 1, characterized in that: the connecting seat comprises a first clamping plate and a second clamping plate, one end of the first clamping plate is hinged to one end of the second clamping plate, the other end of the first clamping plate and the other end of the second clamping plate are respectively provided with a connecting lug, a connecting hole is formed in each connecting lug, and a bolt penetrates through the connecting hole to fixedly connect the first clamping plate and the other end of the second clamping plate.

7. An acoustical insulation and noise reduction air duct according to claim 6, wherein: and rubber cushion pads are arranged on the inner surfaces of the first clamping plate and the second clamping plate.