Built-in vortex-shaped fresh air ventilation device capable of automatically preventing backflow

Abstract

The utility model discloses a built-in vortex-shaped fresh air ventilation device capable of automatically preventing backflow, which relates to the technical field of environment-friendly energy-saving equipment and is characterized by comprising a chamber body, an exhaust pipe and an air collecting pipe are fixed at one end of the chamber body, and an air supply pipe and an air return pipe are fixedly arranged at the other end of the chamber body. The air exhaust pipe, the air collecting pipe, the air supply pipe and the air return pipe are respectively communicated with the interior of the chamber body, the joints of the air exhaust pipe and the chamber body and the joints of the air collecting pipe and the chamber body are respectively provided with a vortex-shaped automatic anti-backflow mechanism, the inner side of the chamber body is fixedly provided with a main control board, and the main control board is electrically connected with the vortex-shaped automatic anti-backflow mechanism through a control line. Automatic control over opening and closing of the air collecting opening and the air exhaust opening is achieved. By means of the design, the requirement for manual operation is eliminated, the intelligent degree of the system is improved, outdoor air can be effectively prevented from flowing backwards, the indoor air quality is ensured, and a more comfortable and healthy living environment is provided for users.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection and energy-saving equipment, and in particular to a fresh air ventilation device with a built-in vortex-shaped automatic backflow prevention device. Background Art

[0002] Traditional fresh air ventilation devices do provide effective ventilation solutions for modern buildings. However, these systems have some limitations in design and operation, especially in preventing the backflow of outdoor wind. Existing fresh air ventilation devices usually include fans, filters, heat exchangers, and duct systems responsible for collecting, supplying, returning and exhausting air. The air intake and exhaust vents in these systems are often directly connected to the outdoor environment to facilitate the introduction of fresh air and the exhaust of indoor dirty air.

[0003] Although such a design can achieve basic air exchange functions, when the fresh air ventilation device is not working, outdoor air backflow is prone to occur. This is because when the system is stopped, the outdoor natural wind pressure may enter the room through the unprotected air intake and exhaust vents, causing the indoor air quality to deteriorate, and even bring in dust and pollutants, affecting the comfort and health of the living or working environment.

[0004] To overcome this problem, the traditional approach is to install manual angle valves at the air intake and exhaust vents. These angle valves can be manually closed when the fresh air ventilation device is turned off, thereby preventing the backflow of outdoor air. However, this method not only requires manual operation, which increases the burden on users, but also may be forgotten to close or open during actual operation, thereby reducing the system's anti-backflow effect and overall ease of use. Utility Model Content

[0005] In order to overcome the above-mentioned technical problems, the purpose of the utility model is to provide a fresh air ventilation device with built-in vortex-shaped automatic anti-backflow, which not only eliminates the need for manual operation and improves the intelligence level of the system, but also can effectively prevent outdoor wind backflow, ensure indoor air quality, and provide users with a more comfortable and healthier living environment.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A fresh air ventilation device with built-in vortex-shaped automatic backflow prevention, characterized in that it comprises a chamber body, an exhaust pipe and an air collection pipe are fixed at one end of the chamber body, an air supply pipe and an air return pipe are fixedly arranged at the other end of the chamber body, the exhaust pipe, the air collection pipe, the air supply pipe and the air return pipe are respectively communicated with the interior of the chamber body, the connection between the exhaust pipe and the air collection pipe and the chamber body is respectively provided with a vortex-shaped automatic backflow prevention mechanism, a main control board is fixedly arranged on the inner side of the chamber body, and the main control board is electrically connected to the vortex-shaped automatic backflow prevention mechanism through a control line;

[0008] The vortex-shaped automatic backflow prevention mechanism includes a bracket, a vortex fan blade, a main rotating piece, a motor fixing rod and a stepping motor. The bracket is fixedly arranged on the inner side of the chamber body and corresponds to the positions of the exhaust pipe and the air collection pipe. A vent is arranged in the middle position of the bracket. The vortex fan blade is arranged in multiple pieces and has a fan-shaped appearance. One end of the vortex fan blade is rotatably arranged on the bracket and is located at the edge of the vent. A sliding pin is fixedly arranged on the side of the other end of the vortex fan blade. The main rotating piece is located on the outer side of the vortex fan blade. A circular hole is arranged in the middle position of the main rotating piece. Inclined slide grooves are evenly arranged on the main rotating piece. The sliding pin is slidably arranged inside the inclined slide groove. The motor fixing rod is fixedly arranged on the bracket and is located on the outer side of the main rotating piece. The stepping motor is fixedly arranged on the motor fixing rod and is transmission-connected to the main rotating piece.

[0009] According to a preferred technical solution, a cross is provided on the vent and the circular hole, and the output end of the stepper motor is fixedly connected to the cross of the main rotating piece.

[0010] According to a preferred technical solution, the main rotating piece is circular.

[0011] According to a preferred technical solution, the exhaust duct and the air supply duct are symmetrically arranged at two ends of the chamber body, and the air collection duct and the air return duct are symmetrically arranged at two ends of the chamber body.

[0012] According to a preferred technical solution, the vortex fan blades are provided with 5 blades in total, and the inclined chutes are also provided with 5 blades.

[0013] Beneficial effects of the utility model:

[0014] Automatic control: Through the combined use of the main control board and the stepper motor, the automatic rotation control of the vortex fan blades is realized, so that the exhaust duct and the air collection duct can be opened and closed without human intervention, which improves the convenience of operation and the intelligence level of the system.

[0015] Prevent backflow: The design of the vortex-shaped automatic backflow prevention mechanism effectively prevents outdoor natural wind from flowing back into the room when the system is shut down, ensuring the indoor air quality and avoiding dust, pollution and other problems caused by backflow.

[0016] Stable operation: Due to the reduction of manual operation links and the use of precisely controlled stepper motors, the operation of the entire fresh air ventilation device is more stable and reliable, reducing the failure rate and maintenance costs.

[0017] Energy saving and environmental protection: The automatic anti-backflow function reduces unnecessary energy waste. At the same time, because the system runs more efficiently, it also saves energy consumption to a certain extent, which meets the requirements of modern buildings for energy saving and environmental protection.

[0018] Improve comfort: Through effective fresh air ventilation and prevention of external wind backflow, the indoor air can be maintained fresh and clean, providing a more comfortable air environment for living or working environments.

[0019] Enhanced safety: Automated control systems reduce the possibility of human operating errors and increase safety during equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the utility model after the chamber body is opened;

[0023] Figure 3 It is a schematic diagram of the explosion structure after the vortex-shaped automatic anti-backflow mechanism of the utility model is closed;

[0024] Figure 4 It is a schematic diagram of the explosion structure of the utility model after the vortex-shaped automatic anti-backflow mechanism is opened;

[0025] Figure 5 This is a schematic diagram of the structure of the vortex fan blade of the utility model;

[0026] In the figure: 1, chamber body; 2, exhaust duct; 3, air collection duct; 4, air supply duct; 5, return air duct; 6, vortex-shaped automatic anti-backflow mechanism; 7, main control board; 8, control line; 61, bracket; 62, vortex fan blade; 63, main rotating piece; 64, stepping motor; 65, motor fixing rod; 66, vent; 67, sliding pin; 68, round hole; 69, inclined slide; 610, cross. DETAILED DESCRIPTION

[0027] The following will be combined with 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 of 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.

[0028] See also Figure 1-Figure 5 As shown,

[0029] A fresh air ventilation device with built-in vortex-shaped automatic backflow prevention, characterized in that it comprises a chamber body 1, an exhaust pipe 2 and an air collection pipe 3 are fixed at one end of the chamber body 1, an air supply pipe 4 and an air return pipe 5 are fixedly arranged at the other end of the chamber body 1, the exhaust pipe 2, the air collection pipe 3, the air supply pipe 4 and the air return pipe 5 are respectively communicated with the interior of the chamber body 1, and a vortex-shaped automatic backflow prevention mechanism 6 is respectively arranged at the connection between the exhaust pipe 2 and the air collection pipe 3 and the chamber body 1, a main control board 7 is fixedly arranged on the inner side of the chamber body 2, and the main control board 7 is electrically connected to the vortex-shaped automatic backflow prevention mechanism 6 through a control line 8;

[0030] The vortex-shaped automatic backflow prevention mechanism 6 includes a bracket 61, a vortex fan blade 62, a main rotating piece 63, a motor fixing rod 65 and a stepping motor 64. The bracket 61 is fixedly arranged on the inner side of the chamber body 1 and corresponds to the position of the exhaust pipe 2 and the air collection pipe 3. A vent 66 is arranged in the middle position of the bracket 61. The vortex fan blade 62 is arranged in multiple pieces and has a fan-shaped appearance. One end of the vortex fan blade 62 is rotatably arranged on the bracket 61 and is located at the edge of the vent 66. A sliding pin 67 is fixedly arranged on the side of the other end of the vortex fan blade 62. The main rotating piece 63 is located on the outer side of the vortex fan blade 62. A circular hole 68 is arranged in the middle position of the main rotating piece 63. Inclined slide grooves 69 are evenly arranged on the main rotating piece 63. The sliding pin 67 is slidably arranged inside the inclined slide groove 69. The motor fixing rod 65 is fixedly arranged on the bracket 61 and is located on the outer side of the main rotating piece 63. The stepping motor 64 is fixedly arranged on the motor fixing rod 65 and is transmission-connected with the main rotating piece 63.

[0031] A cross 610 is provided on both the vent 66 and the circular hole 68, and the output end of the stepper motor 64 is fixedly connected to the cross 610 of the main rotating piece 63. The main rotating piece 63 is circular. The exhaust pipe 2 and the air supply pipe 4 are symmetrically arranged at both ends of the chamber body 1, and the air collection pipe 3 and the return air pipe 5 are symmetrically arranged at both ends of the chamber body 1. The vortex fan blade 62 is provided with 5 blades in total, and the inclined chute 69 is also provided with 5 blades.

[0032] The utility model is an improved anti-backflow fresh air ventilation device, which upgrades the manual operation mode to a main control board that drives multiple vortex fan blades 62 to rotate via a stepper motor 64, so that the exhaust duct 2 and the air collection duct 3 are changed from an open state to a closed state, preventing outdoor natural wind from backflowing into the room.

[0033] The structure of the vortex type automatic anti-backflow fresh air ventilation device is integrated with the stepping motor 64, five vortex type blades 62, bracket 61 and main control board 8 and other components inside the machine. According to the requirements of the operation state of the fresh air ventilation device, the main control board 8 autonomously controls the opening and closing of the vortex type blades 62, thereby achieving the purpose of preventing backflow. When the ventilation device is turned on and off, there is no need to manually rotate the anti-backflow angle valve of the air collection and exhaust ducts, which greatly reduces the steps of manual operation, and the whole machine is more intelligent and runs more stably.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The above contents are merely examples and explanations of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. A fresh air ventilation device with built-in vortex-shaped automatic backflow prevention, characterized in that: The invention comprises a chamber body (1), wherein an exhaust pipe (2) and an air collection pipe (3) are fixed at one end of the chamber body (1), and an air supply pipe (4) and an air return pipe (5) are fixed at the other end of the chamber body (1); the exhaust pipe (2), the air collection pipe (3), the air supply pipe (4) and the air return pipe (5) are respectively communicated with the interior of the chamber body (1); a vortex-shaped automatic anti-backflow mechanism (6) is respectively provided at the connection between the exhaust pipe (2) and the air collection pipe (3) and the chamber body (1); a main control board (7) is fixedly provided on the inner side of the chamber body (1); and the main control board (7) is electrically connected to the vortex-shaped automatic anti-backflow mechanism (6) through a control line (8); The vortex-shaped automatic backflow prevention mechanism (6) comprises a bracket (61), a vortex fan blade (62), a main rotating piece (63), a motor fixing rod (65) and a stepping motor (64); the bracket (61) is fixedly arranged on the inner side of the chamber body (1) and corresponds to the position of the exhaust pipe (2) and the air collection pipe (3); a vent (66) is arranged in the middle position of the bracket (61); the vortex fan blade (62) is arranged in a plurality of pieces and has a fan-shaped appearance; one end of the vortex fan blade (62) is rotatably arranged on the bracket (61) and is located at the edge of the vent (66); the vortex fan blade (62) A sliding pin (67) is fixedly arranged on the side of the other end, the main rotating piece (63) is located on the outside of the vortex fan blade (62), a circular hole (68) is arranged in the middle of the main rotating piece (63), inclined sliding grooves (69) are evenly arranged on the main rotating piece (63), the sliding pin (67) is slidably arranged inside the inclined sliding grooves (69), the motor fixing rod (65) is fixedly arranged on the bracket (61) and is located on the outside of the main rotating piece (63), and the stepping motor (64) is fixedly arranged on the motor fixing rod (65) and is transmission-connected to the main rotating piece (63).

2. A fresh air ventilation device with built-in vortex-shaped automatic backflow prevention according to claim 1, characterized in that: The ventilation opening (66) and the circular hole (68) are both provided with a cross (610), and the output end of the stepping motor (64) is fixedly connected to the cross (610) of the main rotating piece (63).

3. A fresh air ventilation device with built-in vortex-shaped automatic backflow prevention according to claim 1, characterized in that: The main rotating piece (63) is circular.

4. A fresh air ventilation device with built-in vortex-shaped automatic backflow prevention according to claim 1, characterized in that: The exhaust pipe (2) and the air supply pipe (4) are symmetrically arranged at the two ends of the chamber body (1), and the air collection pipe (3) and the air return pipe (5) are symmetrically arranged at the two ends of the chamber body (1).

5. A fresh air ventilation device with built-in vortex-shaped automatic backflow prevention according to any one of claims 1, 2, 3 or 4, characterized in that: The vortex fan blades (62) are provided with 5 blades in total, and the inclined slide grooves (69) are also provided with 5 pieces.

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