Intelligent building air supply and exhaust system

Abstract

The utility model belongs to the technical field of air supply and exhaust, and discloses an intelligent building air supply and exhaust system which comprises an air supply pipeline, a branch air exhaust net fixedly installed at the bottom of the air supply pipeline, a main air exhaust net fixedly installed at the bottom end of the branch air exhaust net, an inner pipeline fixedly installed on the inner wall of the air supply pipeline, and a main shaft arranged in the inner pipeline. Three worm wheel blades are fixedly installed on the outer side of the main shaft, air scattering blades are fixedly installed at the bottom of the main shaft, first air openings are formed in the four corners of the bottom of the air supply pipeline, and side exhaust openings are formed in the positions, corresponding to the first air openings, of the bottom of the inner pipeline. Due to the design of the air supply pipeline, the inner pipeline, the branch air exhaust net and the main air exhaust net, air in the ventilation pipeline flows in two paths after passing through the air supply pipeline, normal passing of the air volume is reduced to a certain extent, and the situation that the user experience is reduced due to the fact that air directly blows a user is avoided; and the indoor air supply and exhaust functions are achieved, and meanwhile the user experience is taken into consideration.

Description

Technical Field

[0001] The utility model belongs to the technical field of air supply and exhaust, and specifically relates to an intelligent building air supply and exhaust system. Background Technique

[0002] The air supply and exhaust system is based on the fact that in a sealed room, special equipment is used to supply fresh air into the room, and a "fresh air flow field" will be formed in the room, so as to meet the need of fresh air replacement in the room. Generally, high-wind-pressure and large-flow fans are adopted, and hot air or cool air is forcibly sent into the room through pipes by machinery.

[0003] The Chinese patent discloses an intelligent building air supply and exhaust system (authorization publication number CN106642502A), which includes an exhaust main pipe with an exhaust on-off control mechanism inside and a supply air main pipe with a supply air on-off control mechanism inside. One end of the exhaust main pipe has an exhaust main outlet, and the other end has an exhaust main inlet. One end of the supply air main pipe has a supply air main inlet. The exhaust main inlet of the exhaust main pipe is connected with a number of exhaust sub-pipes, and the supply air main outlet of the supply air main pipe is connected with a number of supply air sub-pipes.

[0004] Although this patent has been optimized to a certain extent on the air supply pipeline and designed a number of exhaust sub-pipes, due to the increasing quality of people's life and the pursuit of convenience and comfort in production and life from all aspects, the existing exhaust device has a large wind force within a certain distance in the direction of the air outlet end. Whether it is cold air or hot air, when users pass through the air path at the air outlet, they will feel obvious air flow and have a sense of discomfort. Content of the Utility Model

[0005] To solve the problems raised in the above background technique, the utility model provides an intelligent building air supply and exhaust system.

[0006] To achieve the above object, the utility model provides the following technical solution: an intelligent building air supply and exhaust system, including an air supply pipeline, a branch exhaust net is fixedly installed at the bottom of the air supply pipeline, a main exhaust net is fixedly installed at the bottom end of the branch exhaust net, an inner pipeline is fixedly installed on the inner wall of the air supply pipeline, a main shaft is arranged inside the inner pipeline, three worm wheel blades are fixedly installed on the outer side of the main shaft, a wind-dispersing blade is fixedly installed at the bottom of the main shaft, first air outlets are opened at four corner positions at the bottom of the air supply pipeline, side exhaust air outlets are opened at positions corresponding to the first air outlets at the bottom of the inner pipeline, and a closing mechanism is fixedly installed at the top end of the air supply pipeline.

[0007] Preferably, a blocking plate is fixedly connected to the bottom of the inner wall of the air supply pipeline, and the side of the blocking plate away from the air supply pipeline is attached to the bottom of the outer side of the inner pipeline.

[0008] Preferably, an installation frame is sleeved outside the main shaft, and a plurality of connecting rods are fixedly connected to the outside of the installation frame. One ends of the plurality of connecting rods are fixedly installed on the inner wall of the inner pipeline.

[0009] Preferably, a bearing is fixedly sleeved outside the main shaft, and the bearing is fixedly installed on the inner wall of the installation frame.

[0010] Preferably, the closing mechanism includes an annular plate, a sector plate and a return spring. A plurality of arc-shaped grooves are formed in the inner wall of the annular plate.

[0011] Preferably, a plurality of rotating shafts are fixedly installed on the inner wall of the annular plate, and the sector plate is rotatably sleeved outside the rotating shafts.

[0012] Preferably, push rods are fixedly connected to both sides of the sector plate. A return spring is arranged inside the arc-shaped groove. One end of the return spring is fixedly installed on the outside of the push rod, and the other end of the return spring is fixedly installed on the inner wall of the arc-shaped groove.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Through the design of the air supply pipeline, the inner pipeline, the branch exhaust net and the main exhaust net, the air in the ventilation pipeline is divided into two paths after passing through the air supply pipeline. Part of the air passes through the exhaust net so that the air diffuses horizontally and is discharged. Another part of the air passes through the air-dispersing blades and the worm wheel blades to weaken the longitudinal kinetic energy of the air and is discharged from the bottom end of the main exhaust net. Part of the air inside the main exhaust net is discharged from the side of the main exhaust net. This device reduces the normal passage of the air volume to a certain extent, reduces the wind force, avoids the situation that the wind blows directly on the user and reduces the user experience, and achieves the function of sending and exhausting air indoors while taking into account the user experience.

[0015] 2. Through the design of the closing mechanism, when there is no air in the ventilation pipeline, under the elastic action of the return spring, the sector plate is in the closed state as shown in Figure 1 , avoiding small animals such as mice and cockroaches in the ventilation pipeline from entering the room through the air supply pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the diagonal sectional structure of the present utility model;

[0018] Figure 3 is a schematic diagram of the sectional structure of the present utility model;

[0019] Figure 4 is a schematic diagram of the bottom view structure of the present utility model;

[0020] Figure 5 This is a schematic structural diagram of the closing mechanism of the present utility model.

[0021] In the figure: 1, air supply duct; 2, branch exhaust air net; 3, main exhaust air net; 4, inner duct; 5, main shaft; 6, worm wheel blades; 7, air-dispersing blades; 8, first air outlet; 9, side exhaust air outlet; 10, plug plate; 11, mounting bracket; 12, bearing; 13, connecting rod; 14, ring plate; 15, fan plate; 16, rotating shaft; 17, return spring. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1 to 5 shown, the present utility model provides an intelligent building air supply and exhaust system, including an air supply duct 1. The air supply duct 1 has a square columnar structure. A branch exhaust air net 2 is fixedly installed at the bottom of the air supply duct 1. A main exhaust air net 3 is fixedly installed at the bottom end of the branch exhaust air net 2. The branch exhaust air net 2 and the main exhaust air net 3 are used to achieve multi-directional exhaust. An inner duct 4 is fixedly installed on the inner wall of the air supply duct 1. The inner duct 4 has an approximately cylindrical structure. There is a middle-through space between the inner duct 4 and the inner corner position of the inner wall of the air supply duct 1, which is a sandwich layer. A main shaft 5 is arranged inside the inner duct 4. Three worm wheel blades 6 are fixedly installed on the outer side of the main shaft 5. Under the blowing of the wind in the inner duct 4, the worm wheel blades 6 will rotate to provide kinetic energy for the rotation of the main shaft 5. A wind-dispersing blade 7 is fixedly installed at the bottom of the main shaft 5. First air outlets 8 are opened at the four corner positions at the bottom of the air supply duct 1. Side exhaust air outlets 9 are opened at the positions corresponding to the first air outlets 8 at the bottom of the inner duct 4. A closing mechanism is fixedly installed at the top end of the air supply duct 1.

[0024] A plug plate 10 is fixedly connected to the bottom of the inner wall of the air supply duct 1. The side of the plug plate 10 away from the air supply duct 1 is in contact with the bottom of the outer side of the inner duct 4. As Figure 4 shown, the shape of the plug plate 10 is the shape of the sandwich layer between the inner duct 4 and the air supply duct 1, and it is used to block the bottom of the sandwich layer to allow the air in the sandwich layer to enter the branch exhaust air net 2.

[0025] A mounting bracket 11 is sleeved on the outer side of the main shaft 5. A plurality of connecting rods 13 are fixedly connected to the outer side of the mounting bracket 11. One ends of the plurality of connecting rods 13 are all fixedly installed on the inner wall of the inner duct 4. A bearing 12 is fixedly sleeved on the outer side of the main shaft 5. The bearing 12 is fixedly installed on the inner wall of the mounting bracket 11. The mounting bracket 11, the bearing 12 and the connecting rod 13 are used to fix the main shaft 5.

[0026] The closing mechanism includes an annular plate 14, a sector plate 15 and a return spring 17. A plurality of arc-shaped grooves are formed in the inner wall of the annular plate 14, and a plurality of rotating shafts 16 are fixedly installed on the inner wall of the annular plate 14. The sector plate 15 is rotatably sleeved outside the rotating shaft 16. Push rods are fixedly connected to both sides of the sector plate 15. A return spring 17 is arranged inside the arc-shaped groove. One end of the return spring 17 is fixedly installed on the outside of the push rod, and the other end of the return spring 17 is fixedly installed on the inner wall of the arc-shaped groove.

[0027] The function of the closing mechanism is that when there is no wind in the ventilation duct, under the elastic action of the return spring 17, the sector plate 15 is in the closed state as shown in Figure 1 , preventing small animals such as mice and cockroaches inside the ventilation duct from entering the room through the air supply duct 1.

[0028] The working principle and process of the present utility model are as follows: The operator connects the annular plate 14 to the ventilation duct in the intelligent building. The wind in the ventilation duct blows the sector plate 15, and the sector plate 15 rotates clockwise around the rotating shaft 16. At the same time, the sector plate 15 drives the push rod to push the return spring 17 to move, so that the return spring 17 is compressed.

[0029] The wind in the ventilation duct enters the inside of the air supply duct 1 after passing through the sector plate 15. Part of it flows into the inside of the inner duct 4, and the other part flows through the interlayer between the inner duct 4 and the air supply duct 1, and then is discharged to the branch exhaust air network 2 through the position of the first air outlet 8, and then is discharged to the room through the branch exhaust air network 2.

[0030] After the wind enters the inner duct 4, it pushes the worm wheel blades 6 to rotate clockwise. The worm wheel blades 6 rotate and drive the main shaft 5 to rotate. The main shaft 5 drives the air-dispersing blades 7 to rotate. After the wind enters the bottom of the inner duct 4, part of it is fanned by the air-dispersing blades 7, and the wind is discharged to the room through the bottom and side of the main exhaust air network 3, and the other part of the wind is discharged through the position of the side exhaust air outlet 9.

[0031] 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 any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0032] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An intelligent building air supply and exhaust system, characterized in that: The invention comprises an air supply duct (1), wherein a branch exhaust net (2) is fixedly mounted at the bottom of the air supply duct (1), a main exhaust net (3) is fixedly mounted at the bottom end of the branch exhaust net (2), an inner duct (4) is fixedly mounted on the inner wall of the air supply duct (1), a main shaft (5) is arranged inside the inner duct (4), three worm wheel blades (6) are fixedly mounted on the outer side of the main shaft (5), a wind dispersion blade (7) is fixedly mounted at the bottom of the main shaft (5), a No. 1 air outlet (8) is provided at each of the four corner positions of the bottom of the air supply duct (1), a side exhaust outlet (9) is provided at a position of the bottom of the inner duct (4) corresponding to the No. 1 air outlet (8), and a closing mechanism is fixedly mounted at the top of the air supply duct (1).

2. The intelligent building air supply and exhaust system according to claim 1, characterized in that: A blocking plate (10) is fixedly connected to the bottom of the inner wall of the air supply duct (1), and the side of the blocking plate (10) away from the air supply duct (1) is in contact with the bottom of the outer side of the inner duct (4).

3. The intelligent building air supply and exhaust system according to claim 1, characterized in that: The outer side of the main shaft (5) is sleeved with a mounting frame (11), and the outer side of the mounting frame (11) is fixedly connected with a plurality of connecting rods (13), and one end of each of the plurality of connecting rods (13) is fixedly mounted on the inner wall of the inner pipe (4).

4. The intelligent building air supply and exhaust system according to claim 1, characterized in that: A bearing (12) is fixedly sleeved on the outer side of the main shaft (5), and the bearing (12) is fixedly mounted on the inner wall of the mounting frame (11).

5. The intelligent building air supply and exhaust system according to claim 1, characterized in that: The closing mechanism comprises a ring plate (14), a fan plate (15) and a return spring (17); the inner wall of the ring plate (14) is provided with a plurality of arc grooves.

6. The intelligent building air supply and exhaust system according to claim 5, characterized in that: A plurality of rotating shafts (16) are fixedly mounted on the inner wall of the ring plate (14), and the fan plate (15) is rotatably sleeved on the outer side of the rotating shafts (16).

7. The intelligent building air supply and exhaust system according to claim 5, characterized in that: Push rods are fixedly connected to both sides of the fan plate (15), and a return spring (17) is arranged inside the arc groove. One end of the return spring (17) is fixedly installed on the outer side of the push rod, and the other end of the return spring (17) is fixedly installed on the inner wall of the arc groove.

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