CN218953919U

CN218953919U - Damping and silencing device for ventilating duct

Info

Publication number: CN218953919U
Application number: CN202222676699.6U
Authority: CN
Inventors: 李忠文; 李绘岭; 李丹丹
Original assignee: Anhui Tianjia Technology Co ltd
Current assignee: Anhui Tianjia Technology Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-05-02
Anticipated expiration: 2032-10-11

Abstract

The utility model discloses a damping and silencing device for a ventilating duct, which comprises a ventilating duct, wherein a damping and silencing mechanism is arranged outside the ventilating duct: the damping and silencing mechanism comprises a spring, one end of the spring is fixedly connected with the surface of the ventilation pipe, a fixed block is fixedly arranged at one end of the spring, an outer housing is fixedly arranged at one end of the fixed block, and the ventilation pipe is arranged in the outer housing. The damping mechanism is arranged outside the ventilating pipe, and the corresponding damping energy absorbing mechanism is arranged inside the outer housing, so that the ventilating pipe is well buffered and damped between the two springs, the ventilating pipe is better used, the device is simple and practical, meanwhile, the counterweight ring is additionally arranged inside the ventilating pipe, the vibration amplitude of the ventilating pipe is reduced through the counterweight ring, the ventilating pipe is buffered and damped, and noise emitted inside the ventilating pipe is weakened.

Description

Damping and silencing device for ventilating duct

Technical Field

The utility model relates to the technical field of damping and silencing of ventilating ducts, in particular to a damping and silencing device of a ventilating duct.

Background

The ventilating duct is a metal or composite pipeline for ventilation and air conditioning engineering of industrial and civil buildings, and is a municipal infrastructure for reducing the concentration of harmful gases in order to circulate air.

However, in the prior art, when in actual use, the damping and silencing structure of the traditional ventilating duct is complex, and the manufacturing cost is high.

Disclosure of Invention

The utility model aims to provide a damping and silencing device for a ventilating duct, which aims to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a ventilation pipe shock attenuation silencing device, includes the ventilation pipe, the outside of ventilation pipe is provided with shock attenuation silencing mechanism:

the damping and silencing mechanism comprises a spring, one end of the spring is fixedly connected with the surface of the ventilation pipe, a fixed block is fixedly arranged at one end of the spring, an outer housing is fixedly arranged at one end of the fixed block, and the ventilation pipe is arranged in the outer housing.

Preferably, the surface of the ventilation pipe is sleeved with a plurality of weight rings.

Preferably, the first silencing hole is formed in one side of the outer housing, and the second silencing hole is formed in the other side of the outer housing.

Preferably, the number of the first silencing holes and the second silencing holes is a plurality of, and the first silencing holes and the second silencing holes are used for silencing.

Preferably, the first silencing hole is in a circular through groove, and the second silencing hole is in a rectangular through groove.

Preferably, the counterweight ring is arranged on the peripheral surface of the ventilation pipe, and the inner wall of the counterweight ring is fixedly connected with the peripheral surface of the ventilation pipe.

Compared with the prior art, the utility model has the beneficial effects that:

1. the damping mechanism is arranged outside the ventilating pipe, and the corresponding damping energy absorbing mechanism is arranged inside the outer housing, so that the ventilating pipe is well buffered and damped between the two springs, and the ventilating pipe is better used;

2. the utility model also provides a first silencing hole and a second silencing hole in the outer housing, and sound molecules emitted by the inside of the ventilation pipe are dissipated through the first silencing hole and the second silencing hole, so that noise emitted by the inside of the ventilation pipe is weakened.

Drawings

FIG. 1 is a three-dimensional schematic diagram of the whole structure of a damping and silencing device for a ventilating duct according to the present utility model;

FIG. 2 is a schematic three-dimensional view of the whole structure of a damping and silencing device for a ventilating duct according to the present utility model;

fig. 3 is a three-dimensional schematic diagram of the whole structure of the damping and silencing device for the ventilating duct.

In the figure: 1. a ventilation pipe; 2. a spring; 3. a fixed block; 4. an outer housing; 5. a counterweight ring; 6. a silencing hole I; 7. and a second silencing hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: be provided with ventilation pipe 1, and ventilation pipe 1 is the pipeline of ventilation, surface mounting at ventilation pipe 1 has spring 2, and the quantity of spring 2 is a plurality of, the quantity of spring 2 is fixed according to ventilation pipe 1's length, fixed block 3 is installed to the other one end of spring 2, and the quantity of fixed block 3 and the quantity looks adaptation of spring 2, install outer housing 4 in the one end that the spring 2 was kept away from to fixed block 3, and ventilation pipe 1 is in the inside of outer housing 4, add on ventilation pipe 1's surface and be equipped with counter weight ring 5, and the quantity of counter weight ring 5 also is with ventilation pipe 1's length looks adaptation, silencer first 6 has been seted up to the inside of one side of outer housing 4, silencer second 7 has been seted up to the inside of the other side of outer housing 4, make the inside sound molecule that sends of ventilation pipe 1 obtain weakening dissipation through silencer first 6 and silencer second 7.

Working principle: in use, when the ventilation pipe 1 is installed, ventilation and air flow are performed through the ventilation pipe 1, when air flows inside the ventilation pipe 1, air enters the inside of the ventilation pipe 1 and air rubs against the inner wall of the ventilation pipe 1 when flowing inside the ventilation pipe 1, noise is generated, meanwhile, when air enters the inside of the ventilation pipe 1 in a large amount, the ventilation pipe 1 shakes under huge wind pressure, shaking of the ventilation pipe 1 is caused, by the spring 2 being arranged on the surface of the ventilation pipe 1, the fixed block 3 being arranged at one end of the spring 2, and one end of the fixed block 3 being fixedly connected with the inner wall of the external housing 4, when shaking of the ventilation pipe 1 occurs, by pressing the spring 2, and the fixed block 3 being arranged at one end of the spring 2, the fixed block 3 acting as a damping and energy absorbing mechanism of the spring 2, so that the swing amplitude of the ventilation pipe 1 between the two springs 2 is smaller, the ventilation pipe 1 is well buffered and damped through the springs 2, meanwhile, the counterweight ring 5 is additionally arranged on the surface of the ventilation pipe 1, the swing amplitude of the ventilation pipe 1 is reduced through the gravity of the counterweight ring 5, the vibration amplitude of the ventilation pipe 1 is well reduced, the buffering and damping of the ventilation pipe 1 are finished, when the noise is needed to be damped, on the one hand, the vibration amplitude is reduced, the generated noise is correspondingly reduced, on the other hand, the surface of the outer housing 4 is provided with the first silencing hole 6 and the second silencing hole 7, when the noise inside the ventilation pipe 1 is emitted, the sound collides with the inside of the outer housing 4 through the first silencing hole 6 and the second silencing hole 7, so that the molecular energy of the sound is weakened, the decibel of the sound is reduced, so that comfort is improved when in use.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a ventilation pipe shock attenuation silencing device, includes ventilation pipe (1), its characterized in that: the outside of ventilation pipe (1) is provided with shock attenuation amortization mechanism:

the damping and silencing mechanism comprises a spring (2), one end of the spring (2) is fixedly connected with the surface of the ventilation pipe (1), a fixed block (3) is fixedly arranged at one end of the spring (2), an outer housing (4) is fixedly arranged at one end of the fixed block (3), and the ventilation pipe (1) is arranged in the outer housing (4).

2. A ventilating duct shock absorbing and silencing device according to claim 1, wherein: the surface of the ventilation pipe (1) is sleeved with a plurality of weight rings (5), and the number of the weight rings (5) is a plurality.

3. A ventilating duct shock absorbing and silencing device according to claim 1, wherein: the inside of one side of the outer housing (4) is provided with a first silencing hole (6), and the inside of the other side of the outer housing (4) is provided with a second silencing hole (7).

4. A ventilating duct shock absorbing and silencing device according to claim 3, wherein: the number of the first silencing holes (6) and the second silencing holes (7) is a plurality of, and the first silencing holes (6) and the second silencing holes (7) are used for silencing.

5. A ventilating duct shock absorbing and silencing device according to claim 3, wherein: the first silencing hole (6) is in a circular through groove, and the second silencing hole (7) is in a rectangular through groove.

6. A ventilating duct shock absorbing and silencing device according to claim 2, wherein: the counterweight ring (5) is arranged on the peripheral surface of the ventilation pipe (1), and the inner wall of the counterweight ring (5) is fixedly connected with the peripheral surface of the ventilation pipe (1).