CN211876262U

CN211876262U - Induced ventilation device

Info

Publication number: CN211876262U
Application number: CN202020284335.1U
Authority: CN
Inventors: 田利伟; 王成哲; 郭辉; 郭旭晖; 庄炜茜
Original assignee: China Railway Siyuan Survey and Design Group Co Ltd
Current assignee: China Railway Siyuan Survey and Design Group Co Ltd
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-11-06
Anticipated expiration: 2030-03-10

Abstract

The application discloses an induced ventilation device, which comprises a shell, wherein an air inlet and an air outlet are formed on the shell; the fan is arranged in the shell and used for inducing air to blow from the air inlet to the air outlet; the air guide assembly is rotatably connected in the shell so as to change the blowing direction of the air outlet; and the driving component is connected with the air guide component to drive the air guide component to rotate. The utility model provides an induced ventilation unit, when keeping ventilation effect, adjust the direction of blowing of air outlet through air guide component, reduce because of the big blowing sense that produces of efflux wind speed and the discomfort that arouses the pedestrian.

Description

Induced ventilation device

Technical Field

The application belongs to the technical field of ventilation devices, and particularly relates to an induction ventilation device.

Background

With the rapid development of our society and economy, more and more underground buildings are built, such as: underground stations, underground commercial streets, underground malls, etc. Since underground buildings are constructed underground and their connection passages to the ground are longer and longer, in order to ensure the air flow and air quality in the underground building space, it is usually necessary to arrange a ventilation device above the connection passages.

When the ventilation device is installed, the air outlet of the ventilation device is required to be parallel to the ground. In the longer connecting channel, a plurality of ventilation devices are usually required to be arranged along the length direction, and the airflow emitted from the ventilation devices can move to a pedestrian activity area after a certain time. The following problems exist in the prior art, in order to achieve a good ventilation effect, the wind speed of the ventilation device is usually large, but when the jet wind speed is large, the wind blowing feeling can be caused to pedestrians, the pedestrians are uncomfortable, if the wind blowing feeling is reduced, the jet speed of the ventilation device is usually required to be reduced, and the ventilation effect of the ventilation device can be influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, it is desirable to provide an induced draft device in an embodiment of the present application to solve the problem that the existing draft device may cause a blowing feeling to pedestrians when the jet flow speed is high.

To achieve the above object, an induced draft apparatus according to an embodiment of the present application includes:

the air conditioner comprises a shell, wherein an air inlet and an air outlet are formed in the shell;

the fan is arranged in the shell and used for inducing air to blow from the air inlet to the air outlet;

the air guide assembly is rotatably connected in the shell so as to change the blowing direction of the air outlet; and

and the driving component is connected with the air guide component to drive the air guide component to rotate.

Furthermore, the induced draft device further comprises limiting parts arranged on the shell and positioned on two sides of the air guide assembly, so that the air guide assembly rotates between the two limiting parts.

Further, the induced draft device further comprises an air inlet guide plate arranged at the air inlet.

Further, the air inlet is formed at one end of the bottom of the shell, which is far away from the air outlet.

Further, the housing is formed in a tapered shape in a direction toward the outlet.

Further, the wind guide assembly includes:

at least two air deflectors;

each air deflector is fixedly connected with the corresponding rotating shaft;

the linkage piece is connected with at least two air deflectors; and

the transmission piece is fixedly connected with one of the air deflectors, and the driving component drives the transmission piece to enable the air deflector to rotate.

Furthermore, the transmission part comprises a transmission rack and a connecting rod, one end of the connecting rod is connected with the rotating shaft or the air deflector, and the other end of the connecting rod is connected with the transmission rack;

the driving assembly comprises a driving gear and a driving source, the driving gear is meshed with the transmission rack, and the driving source is connected with the driving gear.

Further, the driving source is a torsion piece, a motor or a motor.

Furthermore, the number of the air deflectors is three, one end of each air deflector is fixedly connected with the corresponding rotating shaft, the linkage piece is connected to the other ends of the three air deflectors, and the transmission piece is located between the rotating shaft and the linkage piece.

Further, the driving assemblies are configured into two groups and are respectively arranged on two sides of the shell.

Further, the drive assembly is configured to be manually or electrically operated.

The induced ventilation device that this application embodiment provided, rotationally connect in the casing through wind guide assembly, be provided with the drive assembly who is connected with wind guide assembly, drive assembly can drive wind guide assembly and rotate, through adjusting the jet direction of wind guide assembly in order to change the air outlet wind, when keeping the ventilation effect, reduce because of the big blowing sense that produces of jet wind speed and the discomfort that arouses the pedestrian.

Drawings

FIG. 1 is a schematic side view of an induced draft apparatus according to an embodiment of the present application;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic front view of an induced draft apparatus according to an embodiment of the present application;

FIG. 4 is a schematic view of an induced draft apparatus according to an embodiment of the present application in which a blowing direction is horizontal;

FIG. 5 is a schematic view of an induced draft apparatus according to an embodiment of the present application with a blowing direction facing upward; and

fig. 6 is a schematic view of the induced draft device according to the embodiment of the present application, showing the blowing direction facing downward.

Description of reference numerals:

10. an air guide assembly; 11. an air deflector; 12. a linkage member; 13. a rotating shaft; 14. a transmission member; 141. a drive rack; 142. a connecting rod; 20. a fan; 30. a housing; 31. an air inlet; 311. an air inlet guide plate; 32. an air outlet; 40. a drive assembly; 41 a drive gear; 42. twisting the sheet; 50. and a limiting member.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

The directional terms used in the description of the present application are intended only to facilitate the description of the application and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered limiting of the application.

In the prior art, an induction ventilation device conducts air transmission through induction. The air purifier is commonly used in a ventilation system of a garage in public facilities, and is used for uniformly stirring and removing local air dead corners so as to improve local air. The non-air-duct induced ventilation subsystem consisting of a plurality of groups of induced ventilation devices can form a whole ventilation and smoke exhaust system together with an air supply fan and an air exhaust fan. The working principle of the air-conditioning system is that the outdoor fresh air or the treated air is induced by the directional high-speed airflow emitted by a plurality of induction ventilation device nozzles which are designed and properly arranged in a system, and is sent to a required area under the condition of no air pipe, so that the optimal indoor airflow organization is realized, and the efficient and economic ventilation and air exchange effects are achieved. The induced ventilation device is internally provided with the high-efficiency centrifugal fan, has the characteristics of low noise, small volume, light weight, convenient lifting and simple maintenance, and is widely applied to ventilation of large-scale places such as underground parking lots, gymnasiums, workshops, warehouses, markets, supermarkets, entertainment venues and the like. Generally, when the induced ventilation device is installed, the air outlet is parallel to the ground, and the jet flow direction is fixed. In the longer connecting channel, a plurality of induced draft devices are also usually provided in the length direction. However, the main problems facing the use of current induced draft devices are: in order to achieve a good ventilation effect to keep air flowing and guarantee air quality, the air speed of the induced ventilation device is usually high, but when the jet flow air speed is high, the air flow emitted from the induced ventilation device moves to a pedestrian activity area after a certain time to cause pedestrian discomfort, and at the moment, if the blowing feeling is reduced, the jet flow speed of the induced ventilation device needs to be reduced, but the ventilation effect of the induced ventilation device is affected.

The embodiment of the present application provides an induced draft apparatus, which is shown in fig. 1, and includes a housing 30, a fan 20, a wind guide assembly 10, and a driving assembly 40. An air inlet 31 and an air outlet 32 are formed on the housing 30, the fan 20 is installed in the housing 30 to induce air to be blown from the air inlet 31 to the air outlet 32, the air guiding assembly 10 is rotatably connected in the housing 30 to change the blowing direction of the air outlet 32, and the driving assembly 40 is connected with the air guiding assembly 10 to drive the air guiding assembly 10 to rotate.

Referring to fig. 1, the induced ventilation device provided in the embodiment of the present application is rotatably connected in the housing 30 through the air guide assembly 10, and is provided with the driving assembly 40 connected with the air guide assembly 10, and the driving assembly 40 can drive the air guide assembly 10 to rotate, so as to change the jet direction of the air at the air outlet 32 by adjusting the air guide assembly 10, and reduce discomfort to pedestrians due to the blowing feeling generated by the large jet wind speed while maintaining the ventilation effect.

Referring to fig. 1, the induced draft device further includes limiting members 50 disposed on the housing 30 and located at two sides of the air guiding assembly 10, so that the air guiding assembly 10 rotates between the two limiting members 50. The limiting parts 50 are respectively and fixedly installed at the air outlet 32 on the housing 30, and the limiting parts 50 may be cylinders, so that the air guiding assembly 10 rotates between the two limiting parts 50, and the air guiding assembly 10 is prevented from touching the housing 30 due to an excessively large rotation angle, thereby causing damage to the induced ventilation device.

In one embodiment, referring to fig. 1, the induced draft device further includes an air intake guide 311 disposed at the air intake 31. The air intake guide plate 311 is installed inside the air intake 31, and may be fixedly installed inside the air intake 31. Preferably, the air inlet guide plate 311 is rotatably installed inside the air inlet 31, when the blower 20 is started, negative pressure is generated in the housing 30, and the air inlet guide plate 311 at the air inlet 31 rotates to open the air inlet 31 under the action of the negative pressure; when the fan 20 is turned off, the air inlet guide plate 311 rotates to cover the air inlet 31, for example, the air inlet guide plate 311 is designed to rotate to cover the air inlet 31 due to gravity or external driving, so as to prevent other objects from entering the induced draft device and damaging the induced draft device, and meanwhile, the air inlet guide plate has neat and beautiful effects.

In one embodiment, referring to fig. 1, the air inlet 31 is formed at the bottom of the housing 30 at an end away from the air outlet 32. The air inlet 31 is disposed on the housing 30, or may be disposed in the middle of the housing 30, or at an end of the top of the housing 30 away from the air outlet 32. Preferably, the air inlet 31 is formed at the bottom of the housing 30 at an end far from the air outlet 32, so as to achieve better ventilation effect to maintain air flow and ensure air quality.

In one embodiment, referring to fig. 1, the housing 30 is formed in a tapered shape toward the outlet 32. The casing 30 forms a necking shape towards the air outlet 32, which is more beneficial to inducing wind to form jet flow towards the air outlet 32 for blowing out, reduces the loss of wind, noise and other effects, and has better ventilation effect to keep air flowing and guarantee air quality.

In one embodiment, referring to fig. 1 and 2, the wind guiding assembly 10 includes at least two wind guiding plates 11, a rotating shaft 13, a link 12 and a transmission member 14. Each air deflector 11 is fixedly connected with the corresponding rotating shaft 13, the linkage piece 12 is connected with at least two air deflectors 11, the transmission piece 14 is fixedly connected with one of the air deflectors 11, and the driving component 40 drives the transmission piece 14 to enable the air deflectors 11 to rotate. Every aviation baffle 11 and the pivot 13 fixed connection that corresponds, a plurality of aviation baffles 11 one side is rotated through linkage 12 and is connected, drive assembly 40 drive aviation baffle 11 revolves pivot 13 and rotates, this aviation baffle 11 drives other aviation baffles 11 syntropy through linkage 12 and rotates, change is induced to the wind direction of inducing ventilation unit, a plurality of aviation baffles 11 are induced wind, and is efficient, and the travelling comfort is also better, reach when keeping ventilation unit's wind speed great, reduce the sense of blowing that arouses from this, guarantee the purpose of pedestrian's comfort level.

In one embodiment, referring to fig. 1 and 2, the transmission member 14 includes a transmission rack 141 and a connecting rod 142, one end of the connecting rod 142 is connected to the rotating shaft 13, and the other end of the connecting rod 142 is connected to the transmission rack 141; the driving assembly 40 includes a driving gear 41 and a driving source, the driving gear 41 is engaged with the driving rack 141, and the driving source is connected to the driving gear 41. The driving source drives the driving gear 41 to move, the driving gear 41 is in meshing transmission with the transmission rack 141, because one end of the connecting rod 142 is connected with the rotating shaft 13, and the other end of the connecting rod 142 is connected with the transmission rack 141, the driving gear 41 is in meshing transmission with the transmission rack 141 to move, and also drives the rotating shaft 13 to move, so that the air deflector 11 is driven to move.

In one embodiment, the transmission member 14 includes a transmission rack 141 and a connection rod 142, one end of the connection rod 142 is connected to the air deflector 11, and the other end of the connection rod 142 is connected to the transmission rack 141; the driving assembly 40 includes a driving gear 41 and a driving source, the driving gear 41 is engaged with the driving rack 141, and the driving source is connected to the driving gear 41. The driving source drives the driving gear 41 to move, the driving gear 41 is in meshed transmission with the transmission rack 141, because one end of the connecting rod 142 is connected with the air deflector 11, and the other end of the connecting rod 142 is connected with the transmission rack 141, the driving gear 41 is in meshed transmission with the transmission rack 141 to move, and the air deflector 11 is driven to move.

It can be understood that, by providing the stoppers 50 on both sides of the wind guide assembly 10, the driving gear 41 can be protected from being disengaged from the driving rack 141 during the meshing transmission with the driving rack 141. Limiting parts may be provided at both ends of the driving rack 141 to prevent the driving gear 41 from being disengaged from the driving rack 141 in the engagement driving with the driving rack 141.

In one embodiment, as shown in fig. 1 and 3, the driving source is a torsion piece 42, a motor or a motor. The drive source may be in a variety of forms, and when manual operation is required, the torsion tab 42; when manual operation is not required, an electric motor or a hydraulic motor may be employed. Preferably, the driving source adopts a torsion piece 42, the torsion piece 42 drives the driving gear 41 to move, and the driving gear 41 is in meshed transmission with the transmission rack 141, so as to drive the air guiding assembly 10 to move. Of course, the drive source may also include the torsion bar 42 and the motor, increasing the flexibility of control.

In an embodiment, referring to fig. 1 and 2, three air deflectors 11 are arranged at intervals, one end of each air deflector 11 is fixedly connected to a corresponding rotating shaft 13, a linkage member 12 is connected to the other end of each air deflector 11, and a transmission member 14 is located between the rotating shaft 13 and the linkage member 12. In this embodiment, the driving rack 141 is fixed on the middle air deflector 11, the linkage member 12 is a linkage shaft, and the driving source is the torsion piece 42. The three air deflectors 11 are connected two by two through two linkage shafts, the three air deflectors 11 are respectively and fixedly connected with the corresponding rotating shafts 13, the driving assembly 40 comprises a driving gear 41 and a driving source, the driving gear 41 is meshed with the transmission rack 141, and the torsion piece 42 is connected with the driving gear 41. The torsion plate 42 drives the driving gear 41 to move, the driving gear 41 is meshed with the transmission rack 141 for transmission, because one end of the connecting rod 142 is connected with the intermediate air deflector 11, and the other end of the connecting rod 142 is connected with the transmission rack 141, the transmission rack 141 moves to drive the air guiding assembly 10 to move.

In one embodiment, referring to fig. 1 and 3, the driving assemblies 40 are configured in two groups, and are respectively installed on two sides of the housing 30. The two sets of driving assemblies 40 are beneficial to keeping the balance and stress balance of the air guide plate 11, improving the stability and reliability of the rotation process and facilitating the operation and driving of the air guide assembly 10 on two sides respectively.

In one embodiment, the actuation assembly 40 is configured for manual or electrically controlled operation. The driving assembly 40 comprises a driving gear 41 and a driving source, when manual operation is needed, the driving assembly 40 is configured to be manually operated, the driving gear 41 can be directly driven by hands, so that the rotation of the air guide assembly 10 is controlled, the jet flow direction of wind is changed by adjusting the air guide structure, and the discomfort caused to pedestrians due to the blowing feeling generated by the large jet flow wind speed is reduced while the ventilation effect is kept. When manual operation is not needed, the driving assembly 40 is configured to be operated in an electric control mode, the driving gear 41 can be directly driven by remote control, so that the rotation of the air guide assembly 10 is controlled, the jet flow direction of wind is changed by adjusting the air guide structure, and the discomfort caused to pedestrians due to the blowing feeling generated by the high jet flow speed is reduced while the ventilation effect is kept. Fig. 4 to 6 respectively show different blowing directions of the outlet 32 of the induced draft device of the present application.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An induced draft apparatus, comprising:

2. The induced draft device according to claim 1, further comprising a stopper provided on the housing and located at both sides of the wind guide assembly, so that the wind guide assembly rotates between the stoppers.

3. The induced draft device according to claim 1, further comprising an air inlet guide plate provided at the air inlet.

4. The induced draft device according to claim 1, wherein the air inlet is formed at an end of the bottom of the housing away from the air outlet.

5. The induced draft device according to claim 1, wherein the housing is formed in a tapered shape toward the outlet.

6. An induced draft device according to any one of claims 1 to 5, wherein the air guide assembly comprises:

at least two air deflectors;

each air deflector is fixedly connected with the corresponding rotating shaft;

the linkage piece is connected with at least two air deflectors; and

7. The induced draft device according to claim 6, wherein the transmission member comprises a transmission rack and a connection rod, one end of the connection rod is connected with the rotation shaft or the air deflector, and the other end of the connection rod is connected with the transmission rack;

8. An induced draft device according to claim 7, wherein the driving source is a torsion piece, an electric motor or a motor.

9. The induced draft device according to claim 6, wherein the number of the wind deflectors is three, one end of each wind deflector is fixedly connected to the corresponding rotating shaft, the linkage member is connected to the other end of each wind deflector, and the transmission member is located between the rotating shaft and the linkage member.

10. The induced draft device according to any one of claims 1 to 5, wherein the driving assemblies are configured in two groups, and are respectively installed at both sides of the housing; and/or the drive assembly is configured for manual or electrically controlled operation.