CN215167622U

CN215167622U - Steel construction of making an uproar falls in ventilation shaft is built in room

Info

Publication number: CN215167622U
Application number: CN202120936601.9U
Authority: CN
Inventors: 程功泉; 崔立旺; 王千航; 倪慧
Original assignee: Tianjin Dade Jiutong Steel Structure Co ltd
Current assignee: Tianjin Dade Jiutong Steel Structure Co ltd
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2021-12-14
Anticipated expiration: 2031-05-06

Abstract

The utility model belongs to the technical field of the technique of making an uproar falls in the ventilation shaft and specifically relates to a steel construction of making an uproar falls in ventilation shaft is built in room, including the ventilation shaft main part, conical shell has been placed to the top of ventilation shaft main part, all through first connecting rod fixed connection around between ventilation shaft main part and the conical shell, be linear array between two adjacent first connecting rods and install a plurality of shutter blades, one side that the shutter blade is located the ventilation shaft main part has the sound of inhaling cotton through fixture. This technical scheme can make the clearance angle between the shutter blade increase through the inclination of adjusting the shutter blade to when making the sound cotton of inhaling of shutter blade one side fall the noise, can adjust air cycle's passageway and import and export.

Description

Steel construction of making an uproar falls in ventilation shaft is built in room

Technical Field

The utility model relates to a field of making an uproar falls in the ventilation shaft especially relates to a steel construction of making an uproar falls in ventilation shaft is built in room.

Background

Ventilation shafts are one type of exhaust facility. The general ventilation shaft is a vertical upward passage structure, one end of the ventilation shaft is connected with the space of an underground building, the other end of the ventilation shaft is opened in the ground space, an exhaust fan with a certain specification is arranged in the ventilation shaft, and the gas in the underground building is sent to the atmosphere by utilizing the pumping force of the exhaust fan and the natural tension of the ventilation shaft. Chinese patent publication No. CN212715786U discloses a noise reduction steel structure for a ventilation shaft of a building construction. Including the ventilating shaft, the mechanism of making an uproar falls, fixed establishment, ventilation mechanism and protection machanism, fall the upper end of making an uproar mechanism installation and ventilating shaft, fall the mechanism of making an uproar and include the well casing, lead to the groove, the annular slot, the annular mounting panel, keep off the net, inhale the sound cotton, the board of making an uproar falls in the annular, inhale sound blind hole and sound absorption ball, the well casing is installed in the upper end of ventilating shaft, and lead to the groove and set up in the well casing, the annular slot is set up in leading to the groove, and the upper end of ventilating shaft is inserted and is located the annular slot, two annular mounting panel symmetries are installed in the ventilating shaft upper end, and two annular mounting panels offset the setting with the upside lateral wall of ventilating shaft and the upside inner wall of annular slot respectively, two keep off net respectively fixed mounting in two annular mounting panels.

The air that the ventilating shaft generally will be in the underground construction through the exhaust fan is discharged from the exit of ventilating shaft, the noise that air exhaust's in-process exhaust fan produced also outwards propagates through the export of ventilating shaft, adsorb the reduction to the noise mostly through the abatvoix of making an uproar that falls in a large number on the ventilating shaft side wall mounting among the prior art, but the exhaust pipe who makes the ventilating shaft after the abatvoix of making an uproar sets up easily shelters from in a large number, be unfavorable for the circulation of air, and be difficult to adjust out the inside pipe diameter of tuber pipe.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the steel construction of making an uproar falls in ventilating shaft is built in room that proposes.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a noise reduction steel structure of a ventilation shaft for building comprises a ventilation shaft main body, wherein a conical shell is placed above the ventilation shaft main body, the periphery between the ventilation shaft main body and the conical shell is fixedly connected through first connecting rods, a plurality of shutter blades are installed between every two adjacent first connecting rods in a linear array mode, and sound absorption cotton is arranged on one side, located in the ventilation shaft main body, of each shutter blade through a clamping mechanism;

the utility model discloses a ventilation shaft, including ventilation shaft main part, baffle, connecting axle, the equal fixedly connected with in relative both sides a set of connecting block of ventilation shaft main part is two sets of all placed the acoustic celotex board between the connecting block, the equal fixedly connected with connecting axle in both ends of acoustic celotex board, the connecting axle rotates respectively and connects on adjacent connecting block, all overlap on the connecting axle and be equipped with the torsional spring, the one end of torsional spring offsets with the inboard of ventilation shaft main part, and the other end offsets with one side of acoustic celotex board, one side of acoustic celotex board is equipped with angle adjusting mechanism.

Preferably, fixture includes the multiunit grip block, every group the grip block all is located one side that every shutter blade is close to the ventilating shaft main part, the equal fixedly connected with second connecting rod in one side that the grip block below is close to the shutter blade, the one end of second connecting rod all runs through adjacent shutter blade and extends to the ventilating shaft main part outside fixedly connected with baffle, all the cover is equipped with the spring on the second connecting rod between shutter blade and the baffle, it is located between every group grip block and the adjacent shutter blade to inhale the sound cotton.

Preferably, angle adjustment mechanism includes two screws, two screw thread connection is in the relative both sides of ventilating shaft main part respectively, the one end of screw rod all extends to inside and offset with adjacent acoustic celotex board one side of ventilating shaft main part.

Preferably, the screw rod is located the outer equal fixedly connected with handle of one end of ventilating shaft main part, the side of handle is equipped with anti-skidding line.

Preferably, the cross-sectional area of the conical shell is larger than the cross-sectional area of the ventilation shaft body.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the noise is at the in-process of outside propagation, because the shutter blade all inclines to place between the head rod, most noise outdiffusion's in-process all can contact and inhale the sound cotton to noise reduction is discharged from the clearance department of shutter blade, through the inclination of adjusting the shutter blade, can make the clearance angle between the shutter blade increase, thereby when making the sound cotton of inhaling of shutter blade one side fall the noise, can adjust air cycle's passageway and import and export.

2. The one end of screw rod inwards extends and supports the acoustic celotex board and remove, thereby make the angle increase between acoustic celotex board and the ventilation shaft main part inner wall, the noise of turning back is blockked by one side of acoustic celotex board, make the noise can't get back to in the underground construction through the ventilation shaft main part, the noise that is blockked is inhaled the sound cotton and is absorbed, block the noise through the acoustic celotex board and turn back, and through the angle of adjusting the acoustic celotex board, make the acoustic celotex board under the prerequisite that does not influence the circulation of air, can the maximize block the noise, prevent that the noise from getting back to in the underground construction.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

figure 3 is the utility model discloses a shutter blade and inhale cotton cooperation structure schematic diagram of sound.

In the figure: the ventilating shaft comprises a ventilating shaft main body 1, a first connecting rod 2, a conical shell 3, louver blades 4, a sound insulation plate 5, a connecting block 6, a torsion spring 7, a connecting shaft 8, a screw rod 9, a handle 10, sound absorption cotton 11, a clamping plate 12, a second connecting rod 13, a baffle 14 and a spring 15.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

As shown in fig. 1-3, the noise reduction steel structure for the building ventilation shaft comprises a ventilation shaft main body 1, a conical shell 3 is placed above the ventilation shaft main body 1, the cross-sectional area of the conical shell 3 is larger than that of the ventilation shaft main body 1, the peripheries of the ventilation shaft main body 1 and the conical shell 3 are fixedly connected through first connecting rods 2, a plurality of louver blades 4 are installed between two adjacent first connecting rods 2 in a linear array manner, sound absorption cotton 11 is arranged on one side, located in the ventilation shaft main body 1, of each louver blade 4 through a clamping mechanism, the clamping mechanism comprises a plurality of groups of clamping plates 12, each group of clamping plates 12 is located on one side, close to the ventilation shaft main body 1, of each louver blade 4, a second connecting rod 13 is fixedly connected to one side, close to the louver blades 4, below the clamping plates 12, one end of each second connecting rod 13 penetrates through the adjacent louver blades 4 and extends to the outer side of the ventilation shaft main body 1 and is fixedly connected with a baffle 14, all be equipped with spring 15 on the second connecting rod 13 between shutter blade 4 and baffle 14, inhale sound cotton 11 and be located between every group grip block 12 and adjacent shutter blade 4.

The implementation mode is specifically as follows:

in the using process, air in the underground building is exhausted from the opening of the ventilating shaft main body 1 through the exhaust fan and then is exhausted along the gap between the plurality of louver blades 4 between the ventilating shaft main body 1 and the conical shell 3, noise generated in the ventilating shaft main body 1 is absorbed through the sound absorption cotton 11 on one side of the louver blades 4, the baffle 14 is extruded by the elastic action of the spring 15, the baffle 14 drives the second connecting rod 13 to move, the second connecting rod 13 drives the clamping plate 12 to be close to one side of the louver blades 4, so that the louver blades 4 and the clamping plate 12 clamp the sound absorption cotton 11, the sound absorption cotton 11 is convenient to mount and dismount, in the outward propagation process of the noise, as the louver blades 4 are all obliquely arranged between the first connecting rods 2, most of the noise can contact the sound absorption cotton 11 in the outward diffusion process, and the noise is reduced to be exhausted from the gap of the louver blades 4, by adjusting the inclination angle of the louver blades 4, the gap angle between the louver blades 4 can be increased, so that the inlet and outlet of the air circulation channel can be adjusted while the noise of the sound-absorbing cotton 11 on one side of the louver blades 4 is reduced.

The equal fixedly connected with in relative both sides a set of connecting block 6 in ventilating shaft main part 1, acoustic celotex board 5 has all been placed between two sets of connecting blocks 6, the equal fixedly connected with connecting axle 8 in both ends of acoustic celotex board 5, connecting axle 8 rotates respectively and connects on adjacent connecting block 6, all the cover is equipped with torsional spring 7 on connecting axle 8, the one end of torsional spring 7 and ventilating shaft main part 1's inboard offset, and the other end offsets with one side of acoustic celotex board 5, one side of acoustic celotex board 5 is equipped with angle adjusting mechanism, angle adjusting mechanism includes two screw rods 9, two screw rods 9 are threaded connection respectively in ventilating shaft main part 1 relative both sides, the one end of screw rod 9 all extends to ventilating shaft main part 1 inside and offsets with adjacent 5 one side of acoustic celotex board, screw rod 9 is located the equal fixedly connected with handle 10 of the outer one end of ventilating shaft main part 1, the side of handle 10 is equipped with anti-skidding line.

The conical shell 3 connected with the top of the ventilating shaft main body 1 can prevent rainwater and dust from falling into the ventilating shaft main body 1, when noise is transmitted outwards from the opening of the ventilating shaft main body 1, part of noise turns back and returns to the ventilating shaft main body 1 from the opening of the ventilating shaft main body 1 when contacting the bottom of the conical shell 3, two ends of the sound insulating board 5 enable one side of the sound insulating board 5 to be attached to the inner wall of the ventilating shaft main body 1 under the action of the torsion spring 7, the handle 10 is rotated to enable the handle 10 to drive the screw rod 9 to rotate, the screw rod 9 is in threaded connection with the side face of the ventilating shaft main body 1, one end of the screw rod 9 extends inwards and supports against the sound insulating board 5 to move, so that the angle between the sound insulating board 5 and the inner wall of the ventilating shaft main body 1 is increased, the turning-back noise is blocked by one side of the sound insulating board 5, the noise can not return to the underground building through the ventilating shaft main body 1, and the blocked noise is absorbed by the sound absorbing cotton 11, stop the noise through acoustic celotex board 5 and turn back to through the angle of adjusting acoustic celotex board 5, make acoustic celotex board 5 under the prerequisite that does not influence the circulation of air, can the maximize stop the noise, prevent that the noise from getting back to in the underground construction.

The utility model discloses the theory of operation:

referring to the attached drawings 1-3 of the specification, in the using process, the air in the underground building is exhausted from the opening of the ventilating shaft main body 1 through the exhaust fan and then is exhausted along the gap between the plurality of louver blades 4 between the ventilating shaft main body 1 and the conical shell 3, the noise generated in the ventilating shaft main body 1 is absorbed through the sound-absorbing cotton 11 on one side of the louver blades 4, the baffle 14 is pressed by the elastic action of the spring 15, the baffle 14 drives the second connecting rod 13 to move, the second connecting rod 13 drives the clamping plate 12 to be close to one side of the louver blades 4, so that the louver blades 4 and the clamping plate 12 clamp the sound-absorbing cotton 11, the sound-absorbing cotton 11 is convenient to mount and dismount, and in the outward propagation process of the noise, as the louver blades 4 are all obliquely arranged between the first connecting rods 2, most of the noise contacts the sound-absorbing cotton 11 in the outward diffusion process, thereby noise is reduced and is discharged from the clearance of shutter blade 4, through adjusting the inclination of shutter blade 4, can make the clearance angle between shutter blade 4 increase to when making the sound cotton 11 of inhaling of shutter blade 4 one side fall the noise, can adjust the passageway exit of air circulation.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather is described in the foregoing embodiments and the description with reference to the principles of the invention and that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended that all such changes and modifications fall within the scope of the invention as claimed, which is defined by the claims appended hereto and their equivalents.

Claims

1. A noise reduction steel structure of a ventilation shaft for building comprises a ventilation shaft main body (1) and is characterized in that a conical shell (3) is placed above the ventilation shaft main body (1), the periphery between the ventilation shaft main body (1) and the conical shell (3) is fixedly connected through first connecting rods (2), a plurality of shutter blades (4) are installed between every two adjacent first connecting rods (2) in a linear array mode, and sound absorption cotton (11) is arranged on one side, located in the ventilation shaft main body (1), of each shutter blade (4) through a clamping mechanism;

the utility model discloses a ventilation shaft, including ventilation shaft main part (1), relative both sides equal fixedly connected with a set of connecting block (6), it is two sets of all placed acoustic celotex board (5) between connecting block (6), the equal fixedly connected with connecting axle (8) in both ends of acoustic celotex board (5), connecting axle (8) rotate respectively and connect on adjacent connecting block (6), all overlap on connecting axle (8) and be equipped with torsional spring (7), the one end of torsional spring (7) and the inboard of ventilation shaft main part (1) offset, and the other end offsets with one side of acoustic celotex board (5), one side of acoustic celotex board (5) is equipped with angle adjusting mechanism.

2. The steel construction of making an uproar falls in ventilating shaft is built in room of claim 1, characterized in that, fixture includes multiunit grip block (12), every group grip block (12) all are located every shutter blade (4) and are close to one side in ventilating shaft main part (1), the equal fixedly connected with second connecting rod (13) in one side that is close to shutter blade (4) below grip block (12), the one end of second connecting rod (13) all runs through adjacent shutter blade (4) and extends to ventilating shaft main part (1) outside fixedly connected with baffle (14), all overlap on second connecting rod (13) between shutter blade (4) and baffle (14) and be equipped with spring (15), inhale sound cotton (11) and be located between every group grip block (12) and adjacent shutter blade (4).

3. The noise reduction steel structure for the building ventilating shaft according to claim 1, wherein the angle adjustment mechanism comprises two screw rods (9), the two screw rods (9) are respectively in threaded connection with two opposite sides of the ventilating shaft main body (1), and one ends of the screw rods (9) extend into the ventilating shaft main body (1) and are abutted against one side of the adjacent sound insulation board (5).

4. The noise reduction steel structure for the ventilation shaft in the building according to claim 3, wherein one end of the screw (9) outside the ventilation shaft main body (1) is fixedly connected with a handle (10), and the side surface of the handle (10) is provided with anti-skid lines.

5. The noise reduction steel structure for the building ventilation shaft according to claim 1, wherein the cross-sectional area of the conical shell (3) is larger than that of the ventilation shaft main body (1).