Stepless variable air volume fresh air ventilator

Abstract

The utility model discloses a stepless variable air volume fresh air ventilator which comprises a ventilation box and a ventilation pipe, a first filter screen is arranged on the inner side of one end of the ventilation box, a baffle is arranged on the outer side of the ventilation box, a multi-gear variable speed motor is arranged in the ventilation box, a ventilation fan is arranged on the multi-gear variable speed motor, and a connecting piece is arranged between the ventilation box and the ventilation pipe. A second filter screen is arranged on the inner side of the bottom of the ventilation pipe, a mounting ring is arranged in the ventilation pipe, and a filter piece is arranged in the mounting ring. And when the inner side needs to be cleaned, the ventilation box is detached, a limiting strip is pulled through a pull ring, and the filter part on the inner side is taken out, so that cleaning is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air ventilators, in particular to a stepless variable air volume fresh air ventilator. Background Art

[0002] The fresh air ventilator is designed and developed based on the principle that a "fresh air flow field" will be formed in the closed room by supplying air on one side and induced air on the other side. It relies on mechanical air supply and induced air to force the formation of a fresh air flow field in the system. It is a new type of environmentally friendly appliance that keeps the indoor air clean and fresh at all times. This independent indoor air replacement and purification circulation system can input natural fresh air while removing indoor polluted air. The fresh air input into the room is first filtered, sterilized, heated, oxygenated and other processes.

[0003] However, the existing fresh air ventilator is large in size. When the floor is high and it is installed outdoors, it is inconvenient to operate. In addition, after filtering the air, there will be many impurities inside the existing fresh air ventilator, which is troublesome to clean. Utility Model Content

[0004] The purpose of the utility model is to provide a stepless variable air volume fresh air ventilator to solve the problems raised in the above background technology.

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

[0006] A stepless variable air volume fresh air ventilator comprises an air exchange box and an air exchange pipe, a first filter is arranged on the inner side of one end of the air exchange box, a baffle is arranged on the outer side of the air exchange box, a multi-speed variable speed motor is arranged inside the air exchange box, a ventilation fan is arranged on the multi-speed variable speed motor, a connecting piece is arranged between the air exchange box and the air exchange pipe, the connecting piece is used to connect the air exchange box and the air exchange pipe, one end of the air exchange pipe faces downward, a second filter is arranged on the inner side of the bottom of the air exchange pipe, a mounting ring is arranged inside the air exchange pipe, and a filter is arranged inside the mounting ring.

[0007] In a preferred embodiment of the present utility model, a connecting bolt is provided at the rear side of the baffle, a connecting port is provided at the outer side of the first filter screen, and the connecting bolt is assembled and disassembled at the connecting port.

[0008] In a preferred embodiment of the present invention, a first screw thread is disposed on the outer side of one end of the connecting member, and a second screw thread is disposed on the inner side of the other end of the connecting member.

[0009] In a preferred embodiment of the present invention, a first screw groove is provided on the inner side of the other end of the ventilation box, and the first screw groove is threadedly connected to the first screw strip.

[0010] In a preferred embodiment of the present invention, a second screw strip is arranged on the outer side of the other end of the ventilation pipe, and the second screw groove is threadedly connected to the second screw strip.

[0011] In a preferred embodiment of the present invention, a limiting ring is provided on the outer side of the ventilation tube.

[0012] In a preferred embodiment of the present utility model, a limit strip is arranged on the outer side of the mounting ring, a limit rail is arranged on the inner side of the ventilation pipe, and the limit strip is slidably connected to the limit rail.

[0013] In a preferred implementation manner of the present utility model, a pull ring is provided on the top of the limiting strip.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0015] Beneficial effect: The fresh air ventilator is easy to install. It only requires opening a suitable groove on the wall, passing the ventilation pipe through the groove, connecting the second screw through the second screw groove, thereby connecting the connecting piece to the ventilation pipe, connecting the first screw through the first screw groove, and connecting the ventilation box to the connecting piece to complete the installation. The gear can be adjusted by the multi-speed variable speed motor to change the air volume. When the inside needs to be cleaned, the ventilation box can be disassembled, and the limit strip can be pulled by the pull ring to take out the filter inside, thereby facilitating cleaning.

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a schematic diagram of the main structure of a stepless variable air volume fresh air ventilator;

[0019] Figure 2 It is a schematic diagram of the explosion structure in a stepless variable air volume fresh air ventilator;

[0020] Figure 3 This is a schematic diagram of the inner structure of a stepless variable air volume fresh air ventilator;

[0021] Figure 4The present invention is a schematic diagram of the connection structure between the ventilation box and the connecting parts in a stepless variable air volume fresh air ventilator.

[0022] In the figure: 1. ventilation box; 11. first filter; 12. baffle; 13. connecting bolt; 14. connecting port; 2. ventilation fan; 21. multi-speed variable speed motor; 22. connecting piece; 23. first screw strip; 24. first screw groove; 3. ventilation pipe; 31. second screw strip; 32. second screw groove; 33. second filter; 34. limiting ring; 4. filter element; 41. mounting ring; 42. limiting strip; 43. limiting rail; 44. pull ring. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] Please refer to Figure 1-4 The utility model discloses a stepless variable air volume fresh air ventilator, comprising an air exchange box 1 and an air exchange pipe 3. The air exchange box 1 is the main structure of the fresh air ventilator, and ventilation is performed through the internal structure. The air exchange pipe 3 is the ventilation pipe of the fresh air ventilator, and the air exchange pipe 3 passes through the wall or glass. A multi-speed variable speed motor 21 is arranged inside the air exchange box 1, and a ventilation fan 2 is arranged on the multi-speed variable speed motor 21, that is, the ventilation fan 2 is driven to rotate by the multi-speed variable speed motor 21, so as to ventilate the room, and the gear is adjusted by the multi-speed variable speed motor 21 to change the gear, so as to change the air volume. A first filter 11 is arranged on the inner side of one end of the air exchange box 1, and the first filter 11 is used to block indoor impurities to prevent impurities from entering the air exchange box 1 when exhausting air outdoors. A second filter 33 is arranged on the inner side of the bottom of the air exchange pipe 3, and the second filter 33 is used to block outdoor impurities to prevent impurities from entering the air exchange pipe 3 when ventilating to the room.

[0025] A baffle 12 is arranged on the outside of the ventilation box 1, a connecting bolt 13 is arranged on the rear side of the baffle 12, a connecting port 14 is arranged on the outside of the first filter 11, and the connecting bolt 13 is disassembled on the connecting port 14, so that the baffle 12 can be installed and disassembled on the ventilation box 1, and the wind direction during air intake and exhaust can be changed. A connecting piece 22 is arranged between the ventilation box 1 and the ventilation pipe 3, and the connecting piece 22 is used to connect the ventilation box 1 and the ventilation pipe 3. A first screw strip 23 is arranged on the outside of one end of the connecting piece 22, and the connecting piece 22 is connected to the ventilation box 1. A second screw groove 32 is provided on the inner side of the other end of the component 22, and a first screw groove 24 is provided on the inner side of the other end of the ventilation box 1. The first screw groove 24 is threadedly connected to the first screw strip 23, that is, the first screw strip 23 is connected through the first screw groove 24, so that the ventilation box 1 is connected to the connecting component 22, and a second screw strip 31 is provided on the outer side of the other end of the ventilation pipe 3, and the second screw groove 32 is threadedly connected to the second screw strip 31, that is, the second screw groove 32 is connected to the second screw strip 31, so that the connecting component 22 is connected to the ventilation pipe 3.

[0026] One end of the ventilation pipe 3 is facing downward to block rainwater. A mounting ring 41 is provided inside the ventilation pipe 3. A filter element 4 is provided inside the mounting ring 41. The mounting ring 41 is used to install the filter element 4, and the filter element 4 filters the air. A limiting ring 34 is provided on the outside of the ventilation pipe 3 to limit the outside of the ventilation pipe 3. A limiting strip 42 is provided on the outside of the mounting ring 41, and a limiting rail 43 is provided on the inside of the ventilation pipe 3. The limiting strip 42 is slidably connected to the limiting rail 43, that is, the limiting strip 42 slides on the limiting rail 43, so that the filter element 4 on the inside is convenient to be taken out and cleaned, thereby ensuring the air exchange effect of the fresh air ventilator. A pull ring 44 is provided on the top of the limiting strip 42, and the pull ring 44 is used to pull the limiting strip 42.

[0027] The working principle of the utility model is as follows: a suitable slot is opened on the wall, the ventilation pipe 3 is passed through the slot, the limiting ring 34 limits the outer side of the ventilation pipe 3, the second screw strip 31 is connected through the second screw groove 32, so that the connecting piece 22 is connected to the ventilation pipe 3, so that the ventilation pipe 3 is fixed, the first screw strip 23 is connected through the first screw groove 24, so that the ventilation box 1 is connected to the connecting piece 22, and when in use, the ventilation fan 2 is driven to rotate by the multi-speed variable speed motor 21, so as to ventilate the room and pass The multi-speed variable speed motor 21 changes the speed to adjust the gear, thereby changing the air volume. The first filter 11 blocks indoor impurities, the second filter 33 blocks outdoor impurities, and the filter element 4 filters the air. The baffle 12 is installed and disassembled on the ventilation box 1 to change the wind direction during air intake and exhaust. When the inside needs to be cleaned, the ventilation box 1 is disassembled, and the limit strip 42 is pulled by the pull ring 44 to take out the filter element 4 inside, so as to facilitate cleaning.

[0028] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A stepless variable air volume fresh air ventilator, comprising a ventilation box (1) and a ventilation pipe (3), characterized in that: A first filter (11) is arranged on the inner side of one end of the ventilation box (1), a baffle (12) is arranged on the outer side of the ventilation box (1), a multi-speed variable speed motor (21) is arranged inside the ventilation box (1), a ventilation fan (2) is arranged on the multi-speed variable speed motor (21), a connecting piece (22) is arranged between the ventilation box (1) and the ventilation pipe (3), the connecting piece (22) is used to connect the ventilation box (1) and the ventilation pipe (3), one end of the ventilation pipe (3) faces downward, a second filter (33) is arranged on the inner side of the bottom of the ventilation pipe (3), a mounting ring (41) is arranged inside the ventilation pipe (3), and a filter (4) is arranged inside the mounting ring (41).

2. A stepless variable air volume fresh air ventilator according to claim 1, characterized in that: A connecting bolt (13) is arranged on the rear side of the baffle (12), a connecting port (14) is arranged on the outside of the first filter screen (11), and the connecting bolt (13) is assembled and disassembled on the connecting port (14).

3. The stepless variable air volume fresh air ventilator according to claim 1, characterized in that: A first screw thread (23) is arranged on the outer side of one end of the connecting piece (22), and a second screw thread groove (32) is arranged on the inner side of the other end of the connecting piece (22).

4. A stepless variable air volume fresh air ventilator according to claim 3, characterized in that: A first screw groove (24) is provided on the inner side of the other end of the ventilation box (1), and the first screw groove (24) is threadedly connected to the first screw strip (23).

5. The stepless variable air volume fresh air ventilator according to claim 3, characterized in that: A second screw thread (31) is arranged on the outer side of the other end of the ventilation pipe (3), and the second screw thread groove (32) is threadably connected to the second screw thread (31).

6. The stepless variable air volume fresh air ventilator according to claim 1, characterized in that: A limiting ring (34) is arranged on the outside of the ventilation pipe (3).

7. The stepless variable air volume fresh air ventilator according to claim 1, characterized in that: A limit strip (42) is arranged on the outside of the mounting ring (41), and a limit rail (43) is arranged on the inside of the ventilation pipe (3), and the limit strip (42) and the limit rail (43) are slidably connected.

8. The stepless variable air volume fresh air ventilator according to claim 7, characterized in that: A pull ring (44) is provided on the top of the limiting strip (42).

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