Fresh air system distribution box with household metering

Abstract

The utility model discloses a distribution box of a fresh air system capable of household metering, comprising an air inlet duct, a plurality of air supply ducts are circumferentially arranged on the outer side of the lower end of the air inlet duct, an air guide seat is arranged on the lower end of the air inlet duct, the air guide seat is truncated, and the air guide seat is directly opposite to the air supply duct. When fresh air is needed, a motor drives a driving gear to rotate, and the driving gear then drives a rotating gear to rotate, and the rotating gear drives a driving rack to rise, thereby driving an air regulating plate to separate from a sealing block, and the air regulating plate first becomes shorter to a horizontal state, and then becomes longer. The wind from the air inlet duct successively passes through a drainage fan and an air guide bin into the air supply duct, thereby completing the delivery of fresh air, and the air volume is measured by a wind speed sensor to complete the distribution of fresh air. By changing the angle of the air regulating plate, thereby changing the size of the cross section toward the air inlet duct, when more fresh air is needed, the larger the cross section, the easier it is for fresh air to pass through, thereby achieving household metering.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air distribution, in particular to a fresh air system distribution box capable of household metering. Background Art

[0002] Currently, high-end apartments and office buildings mostly use centralized fresh air systems, which can improve indoor air quality and meet people's needs for fresh air in a relatively closed indoor environment.

[0003] A Chinese patent discloses a centralized fresh air system that can be controlled and measured by household (authorization announcement number CN 202902552U). This patented technology can calculate the amount of fresh air used by this household type within a period of time through a program. Thus, the fresh air system is measured by household. However, when the vents of the fresh air are changed, the air volume at the vents is uneven and the cross-section is limited, resulting in large air inlet resistance. Therefore, the utility model provides a fresh air system distribution box that can be measured by household to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a distribution box for a fresh air system capable of household metering, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A distribution box for a fresh air system capable of household metering comprises an air inlet pipe, a plurality of air supply pipes are arranged in a circumferential manner on the outer side of the lower end of the air inlet pipe, an air guide seat is arranged at the lower end of the air inlet pipe, the air guide seat is in a truncated cone shape, and the air guide seat is directly opposite to the air supply pipe, the air supply pipe is connected to the lower end of the air inlet pipe through an air guide bin, the cross section of the air guide bin is a right-angled trapezoid, and the lower bottom edge faces the air guide seat;

[0007] An air regulating plate is movably connected in the air guide bin, one end of the air regulating plate is rotatably connected to the upper side of the air supply duct, and the other end is rotatably connected to the lower end of the driving rack, the driving rack is slidably connected in the guide groove, the driving rack is meshed with a rotating gear, the rotating gear is meshed with a driving gear, the driving gear is connected to the motor, the air regulating plate consists of an upper plate and a lower plate, the plates are slidably connected, the air supply duct is connected to a wind speed sensor, and the wind speed sensor is electrically connected to the motor for linkage control.

[0008] Preferably, the upper end of the air guide seat is rotatably connected to the drainage fan via a bearing.

[0009] Preferably, the blades of the induced draft fan are arc-shaped, and a sphere is fixed on the upper middle side of the induced draft fan to guide the wind.

[0010] Preferably, the guide groove is located in the wall of the air inlet pipe.

[0011] Preferably, the driving rack is fixedly connected to the wind shield, and the side of the wind shield is slidably connected to the vertical groove of the air inlet pipe to achieve the transformation of the cross section of the ventilation port.

[0012] Preferably, the lower plate is slidably connected in the slot of the lower plate to achieve a change in length.

[0013] Preferably, a sealing block is fixed to the lower side of the air guide bin, the sealing block is located on the outer side of the air guide seat, and a groove for placing the air regulating plate is provided between the sealing block and the air guide seat.

[0014] Preferably, the sealing block is in the shape of a triangular prism and is made of elastic material.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model changes the cross-section of the vent through the air regulating plate. When fresh air is needed, the motor drives the driving gear to rotate, and the driving gear then drives the rotating gear to rotate. The rotating gear drives the driving rack to rise, and then drives the air regulating plate to separate from the sealing block. The air regulating plate first becomes shorter, to a horizontal state, and then becomes longer. The wind from the air inlet duct successively passes through the drainage fan and the air guide bin into the air supply duct, completing the delivery of fresh air, and the air volume is measured by the wind speed sensor to complete the distribution of fresh air. By changing the angle of the air regulating plate, the size of the cross-section facing the air inlet duct is changed. When more fresh air is needed, the larger the cross-section, the easier it is for fresh air to pass through, thereby realizing household metering. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the fresh air system distribution box that can be metered for each household.

[0018] Figure 2 This is a top-down structural diagram of the fresh air system distribution box that can be metered for each household.

[0019] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction.

[0020] Figure 4 for Figure 3 Schematic diagram of the locally enlarged structure of A in the middle.

[0021] In the figure: 1. air inlet duct; 2. air supply duct; 3. air guide seat; 4. drainage fan; 5. air regulating plate; 6. driving rack; 7. rotating gear; 8. driving gear; 9. motor; 10. guide groove; 11. air guide chamber; 12. sealing block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 4 In the embodiment of the utility model, the distribution box of the fresh air system that can be metered by household includes an air inlet pipe 1, and a plurality of air supply pipes 2 are circumferentially arranged on the outer side of the lower end of the air inlet pipe 1, and an air guide seat 3 is arranged at the lower end of the air inlet pipe 1, and the air guide seat 3 is truncated, and the air guide seat 3 is directly opposite to the air supply pipe 2, and the upper end of the air guide seat 3 is rotatably connected to the drainage fan 4 through a bearing, and the fan blades of the drainage fan 4 are arc-shaped, and a ball is fixed on the upper side of the middle of the drainage fan 4 to guide the wind, and the air supply pipe 2 is connected to the lower end of the air inlet pipe 1 through an air guide bin 11, and the cross-section of the air guide bin 11 is a right-angled trapezoid, and the lower bottom edge faces the air guide seat 3;

[0024] An air regulating plate 5 is movably connected in the air guide bin 11, one end of the air regulating plate 5 is rotatably connected to the upper side of the air supply duct 2, and the other end is rotatably connected to the lower end of the driving rack 6, and the driving rack 6 is slidably connected in the guide groove 10, and the guide groove 10 is located in the pipe wall of the air inlet pipe 1, and the driving rack 6 is fixedly connected to the wind shield plate, and the side of the wind shield plate is slidably connected to the vertical groove of the air inlet pipe 1 to realize the transformation of the vent cross section, and the driving rack 6 is meshed with a rotating gear 7, and the rotating gear 7 is meshed with a driving gear 8. 8 is connected to the motor 9, the air regulating plate 5 is composed of an upper plate and a lower plate, the plates are slidably connected, the lower plate is slidably connected in the slot of the lower plate to achieve length changes, a sealing block 12 is fixed on the lower side of the air guide bin 11, the sealing block 12 is located on the outside of the air guide seat 3, a groove for placing the air regulating plate 5 is provided between the sealing block 12 and the air guide seat 3, the sealing block 12 is in the shape of a triangular prism and is made of elastic material, the air supply duct 2 is connected to a wind speed sensor, and the wind speed sensor is electrically connected to the motor 9 for linkage control.

[0025] The working principle of the utility model is: when in use, when the air supply duct 2 is opened and fresh air is needed, the motor 9 drives the driving gear 8 to rotate, and the driving gear 8 then drives the rotating gear 7 to rotate, and the rotating gear 7 drives the driving rack 6 to rise, and then drives the air regulating plate 5 to separate from the sealing block 12, and the air regulating plate 5 first becomes shorter, to a horizontal state, and then becomes longer. The wind from the air inlet duct 1 enters the air supply duct 2 through the drainage fan 4 and the air guide bin 11 in turn, completing the delivery of fresh air, and the air volume is measured by the wind speed sensor, and then the motor 9 is controlled to rotate, and the cross-sectional size facing the air inlet duct 1 is changed by changing the angle of the air regulating plate 5. When more fresh air is needed, the larger the cross-sectional area, the easier it is for fresh air to pass through, thereby realizing household metering.

[0026] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fresh air system distribution box capable of measuring household air flow, comprising an air inlet pipe (1), characterized in that: A plurality of air supply pipes (2) are provided in a circular shape on the outer side of the lower end of the air inlet pipe (1); an air guide seat (3) is provided at the lower end of the air inlet pipe (1); the air guide seat (3) is in a truncated cone shape, and the air guide seat (3) is directly opposite to the air supply pipe (2); the air supply pipe (2) is connected to the lower end of the air inlet pipe (1) through an air guide bin (11); the cross section of the air guide bin (11) is a right-angled trapezoid, and the lower bottom edge faces the air guide seat (3); An air regulating plate (5) is movably connected in the air guide bin (11); one end of the air regulating plate (5) is rotatably connected to the upper side of the air supply duct (2); the other end is rotatably connected to the lower end of a driving rack (6); the driving rack (6) is slidably connected in the guide groove (10); the driving rack (6) is meshed with a rotating gear (7); the rotating gear (7) is meshed with a driving gear (8); the driving gear (8) is connected to a motor (9); the air regulating plate (5) is composed of an upper plate and a lower plate, the plates being slidably connected; the air supply duct (2) is connected to a wind speed sensor, and the wind speed sensor is electrically connected to the motor (9).

2. The fresh air system distribution box capable of household metering according to claim 1 is characterized in that: The upper end of the air guide seat (3) is rotatably connected to the air guide fan (4) via a bearing.

3. The fresh air system distribution box capable of household metering according to claim 2 is characterized in that: The fan blades of the air-guiding fan (4) are arc-shaped, and a spherical ball is fixed on the upper middle side of the air-guiding fan (4).

4. The fresh air system distribution box capable of household metering according to claim 1 is characterized in that: The guide groove (10) is located inside the wall of the air inlet pipe (1).

5. The fresh air system distribution box capable of household metering according to claim 1 is characterized in that: The driving rack (6) is fixedly connected to a windshield plate, and the side edge of the windshield plate is slidably connected to the vertical groove of the air inlet pipe (1).

6. The fresh air system distribution box capable of household metering according to claim 1 is characterized in that: The lower plate is slidably connected in the slot hole of the lower plate.

7. The fresh air system distribution box capable of household metering according to claim 1 is characterized in that: A sealing block (12) is fixed to the lower side of the air guide bin (11), the sealing block (12) is located outside the air guide seat (3), and a groove for placing the air regulating plate (5) is provided between the sealing block (12) and the air guide seat (3).

8. The fresh air system distribution box capable of household metering according to claim 7 is characterized in that: The sealing block (12) is in the shape of a triangular prism and is made of elastic material.

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