Indoor fresh air interchanger

Abstract

The utility model belongs to the technical field of indoor ventilation equipment, and particularly relates to an indoor fresh air ventilation device which comprises a fresh air ventilator body, an air inlet is formed in one side of the fresh air ventilator body, an exhaust port is formed beside the air inlet, the inner wall of the air inlet is connected with a fixing ring, the side wall of the fixing ring is slidably connected with a filter screen, and the side wall of the filter screen is connected with a limiting block. The front ends of the two sets of installation pipes are connected to the air inlet and the air outlet in a sleeved mode respectively, the surfaces of through grooves in the front ends of the installation pipes abut against an upper limiting ring, one side of the upper limiting ring is rotationally connected with a lower limiting ring through a rotating shaft, and the other side of the lower limiting ring is in threaded connection with the intersection position of the upper limiting ring through a fixing bolt. The fixing ring is arranged in the air inlet, so that a filter screen is convenient to mount, large-particle impurities carried in air absorbed through the air inlet are filtered and intercepted, and the situation that the large-particle impurities are directly absorbed into the filter to increase the maintenance cost is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of indoor ventilation equipment, and in particular relates to an indoor fresh air ventilation device. Background Art

[0002] Fresh air ventilation devices are designed and developed based on the principle of creating a "fresh air flow field" within a closed room by supplying air on one side and induced air on the other. Relying on mechanical air supply and induced air to force a fresh air flow field within the system, they are a new type of environmentally friendly appliance that constantly keeps indoor air clean and fresh. While fresh air ventilation devices can simultaneously remove polluted air from the room while also introducing fresh, natural air from outside, they also have the following drawbacks: When in use, impurities in the air drawn into the air intake of existing fresh air ventilation devices are absorbed into the device, placing a strain on the internal filters and increasing filter maintenance costs. Utility Model Content

[0003] The purpose of the present utility model is to provide an indoor fresh air ventilation device, which aims to solve the problem in the prior art that when the above-mentioned equipment is in use, impurities in the air are absorbed into the fresh air ventilation device when the air inlet of the existing fresh air ventilation device inhales air, thereby increasing the burden on the internal filter and increasing the filter maintenance cost.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an indoor fresh air ventilation device, comprising: a fresh air ventilator body, one side of the fresh air ventilator body is provided with an air inlet, and the side of the air inlet is provided with an exhaust port, the inner wall of the air inlet is connected to a fixing ring, the side wall of the fixing ring is slidably connected to the filter screen, the side wall of the filter screen is connected to a limiting block, the side wall of the limiting block is embedded in the connection block, the other side of the block is connected to the fixing ring, the open end of the air inlet abuts the sealing ring, the other side of the sealing ring is embedded in the limiting column, the other side of the limiting column is connected to the mounting tube, the front ends of the two groups of mounting tubes are respectively sleeved on the air inlet and the exhaust port, the front end groove surface of the mounting tube abuts the upper limit ring, one side of the upper limit ring is rotatably connected to the lower limit ring by a rotating shaft, and the other side of the lower limit ring is threadedly connected to the upper limit ring by a fixing bolt.

[0005] In order to utilize the limit block and the clamping block to fix the connection between the fixed ring and the filter screen, as a preferred indoor fresh air ventilation device of the present invention, the clamping block is a "T"-shaped integrated structure, and its shape and size are consistent with the groove on the side wall of the limit block, and the two clamping blocks are respectively located at the two ends of the arc-shaped slide groove on the surface of the fixed ring.

[0006] In order to utilize the limiting column to fix the connection of the sealing ring on the mounting pipe, as a preferred indoor fresh air ventilation device of the utility model, the sealing ring, the limiting column and the mounting pipe form a mosaic connection structure, and two groups of annularly distributed limiting columns are respectively provided on both sides of the inner wall of the mounting pipe and the sealing rings are respectively mosaic-connected on them.

[0007] In order to make it convenient to use the through grooves at the front end of the mounting tube to be fitted on the open ends of the air inlet and exhaust port, as a preferred indoor fresh air ventilation device of the present invention, six groups of through grooves are distributed in a ring at the front end of the mounting tube, and a cylindrical through groove is opened on one side thereof, the shape and size of which are consistent with the air inlet and exhaust port, and a threaded structure is provided on the outer inner wall of the mounting tube.

[0008] In order to utilize the connected rotating shaft to adjust the connection angle of the upper and lower limit rings, as a preferred indoor fresh air ventilation device of the present invention, the upper limit ring, the rotating shaft and the lower limit ring form a rotating connection structure.

[0009] In order to utilize the fixing bolt to fix the connection between the upper and lower limiting rings, as a preferred indoor fresh air ventilation device of the present invention, the upper limiting ring, the lower limiting ring and the fixing bolt form a threaded connection structure.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The fixing ring inside the air inlet facilitates the installation of the filter, thereby filtering and intercepting large particles of impurities carried in the air absorbed through the air inlet, preventing them from being directly absorbed into the filter and increasing its maintenance cost;

[0012] The mounting pipes connected to the open ends of the air inlet and the air outlet facilitate quick installation of the suction pipe and the exhaust pipe and the connection of the air inlet and the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] Figure 3 This is a side structural diagram of the present utility model;

[0017] Figure 4 This is a schematic diagram of the top view of the structure of the utility model;

[0018] Figure 5 This is an enlarged structural diagram of the fixing ring portion of the utility model;

[0019] Figure 6 This is a schematic diagram of the enlarged structure of the installation pipe part of the utility model.

[0020] In the figure: 1. Fresh air ventilator body; 2. Air inlet; 3. Exhaust port; 4. Fixing ring; 5. Filter; 6. Limit block; 7. Block; 8. Sealing ring; 9. Limit column; 10. Mounting pipe; 11. Upper limit ring; 12. Rotating shaft; 13. Lower limit ring; 14. Fixing bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-6 The utility model provides the following technical solutions: an indoor fresh air ventilation device, comprising: a fresh air ventilator body 1. The model of the fresh air ventilator body 1 in the technical solution is: YDL open-type fresh air ventilation two-way flow dual-purpose silent fan, a filtering mechanism is provided inside it, which is a conventional technology in this field and has no relevance to the technical problems in the technical solution. Therefore, no further description is made in the technical solution. In specific use, the installation pipe 10 connected to the open ends of the air inlet 2 and the exhaust port 3 is used to facilitate the connection of the inlet and outlet pipes, thereby facilitating indoor and outdoor gas exchange.

[0023] An air inlet 2 is provided on one side of the fresh air ventilator body 1, and an exhaust port 3 is provided next to the air inlet 2. The inner wall of the air inlet 2 is connected to a fixing ring 4, and the side wall of the fixing ring 4 is slidingly connected to the filter 5. The side wall of the filter 5 is connected to a limit block 6, and the side wall of the limit block 6 is embedded in the block 7. The other side of the block 7 is connected to the fixing ring 4, and the open end of the air inlet 2 abuts against the sealing ring 8, and the other side of the sealing ring 8 is embedded in the limiting column 9. The other side of the limiting column 9 is connected to the mounting tube 10. The front ends of the two groups of mounting tubes 10 are respectively sleeved on the air inlet 2 and the exhaust port 3. The surface of the through groove at the front end of the mounting tube 10 abuts against the upper limit ring 11, and one side of the upper limit ring 11 is rotatably connected to the lower limit ring 13 by a rotating shaft 12. The other side of the lower limit ring 13 is threadedly connected to the upper limit ring 11 by a fixing bolt 14.

[0024] Preferably, the clamping block 7 is a "T"-shaped integrated structure, and its shape and size are consistent with the groove on the side wall of the limiting block 6. The two clamping blocks 7 are respectively located at the two ends of the arc-shaped sliding groove on the surface of the fixing ring 4.

[0025] During specific use, the clamping blocks 7 distributed at the front ends of the two chutes enable the limiting block 6 connected to the front end of the filter screen 5 to be fixedly engaged with the clamping blocks 7 when the protrusion slides on the chutes.

[0026] Preferably, the sealing ring 8, the limiting posts 9 and the mounting tube 10 form a chimeric connection structure, and two groups of annularly distributed limiting posts 9 are respectively provided on both sides of the inner wall of the mounting tube 10 and the sealing rings 8 are respectively chimerically connected thereto.

[0027] During specific use, the sealing rings 8 are respectively engaged with the limiting columns 9 on the inner wall of the mounting tube 10 , and the front end of the mounting tube 10 is sleeved on the open ends of the air inlet 2 and the exhaust port 3 .

[0028] Preferably, six groups of through grooves are distributed in an annular manner at the front end of the mounting tube 10 and a cylindrical through groove is opened on one side thereof with a shape and size consistent with the air inlet 2 and the exhaust port 3 , and a threaded structure is provided on the outer inner wall of the mounting tube 10 .

[0029] During specific use, the through slot opened at the front end of the mounting tube 10 can be sleeved on the air inlet 2 and the exhaust port 3, so that the open end of the through slot can abut against and be clamped to hold the internal air inlet 2 and the exhaust port 3.

[0030] Preferably, the upper limit ring 11 , the rotating shaft 12 and the lower limit ring 13 form a rotating connection structure.

[0031] During specific use, the upper limit ring 11 and the lower limit ring 13 are rotated and sleeved on the front end of the installation tube 10 in cooperation with the rotating shaft 12 .

[0032] Preferably, the upper limit ring 11 , the lower limit ring 13 and the fixing bolt 14 form a threaded connection structure.

[0033] During specific use, the fixing bolt 14 is passed through the upper limit ring 11 and the lower limit ring 13 and is screwed to fix them, so as to fix the connection between the upper limit ring 11 and the lower limit ring 13 .

[0034] Working principle: When using the fresh air ventilator body 1, the slide groove provided on the fixing ring 4 provided on the inner wall of the air inlet 2 and the block 7 distributed at the front end of the two slide grooves enable the limit block 6 connected to the front end of the filter 5 to be fixedly engaged with the block 7 when the protrusion slides on the slide groove, thereby fixing the connection between the filter 5 and the fixing ring 4. At the same time, the sealing ring 8 is respectively engaged with the limit column 9 on the inner wall of the installation tube 10, and then the front end of the installation tube 10 is sleeved on the open ends of the air inlet 2 and the exhaust port 3, and one side of the installation tube is engaged with the filter 5. The sealing ring 8 is in contact with the open ends of the air inlet 2 and the exhaust port 3, and then the upper limit ring 11 and the lower limit ring 13 are used to be sleeved on the front end of the mounting tube 10 with the cooperation of the rotating shaft 12, and then the fixing bolt 14 is used to pass through the upper limit ring 11 and the lower limit ring 13 and tighten and fix them, so that the upper limit ring 11 and the lower limit ring 13 are used to squeeze the groove opened on the inner wall of the mounting tube 10 inward so that it is clamped on the open ends of the air inlet 2 and the exhaust port 3, so that the threaded groove provided on the other side of the mounting tube 10 is used to facilitate the fixing of the inlet and outlet pipes.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An indoor fresh air ventilation device, comprising: The fresh air ventilator body (1) is characterized in that: an air inlet (2) is provided on one side of the fresh air ventilator body (1), an exhaust port (3) is provided beside the air inlet (2), the inner wall of the air inlet (2) is connected to a fixing ring (4), the side wall of the fixing ring (4) is slidably connected to a filter (5), the side wall of the filter (5) is connected to a limit block (6), the side wall of the limit block (6) is engaged with a card block (7), the other side of the card block (7) is connected to the fixing ring (4), and the open end of the air inlet (2) abuts against a sealing ring (8 ), the other side of the sealing ring (8) is engaged with the limiting column (9), the other side of the limiting column (9) is connected to the mounting tube (10), the front ends of the two groups of mounting tubes (10) are respectively sleeved on the air inlet (2) and the exhaust port (3), the front end through groove surface of the mounting tube (10) abuts against the upper limiting ring (11), one side of the upper limiting ring (11) is rotatably connected to the lower limiting ring (13) by the rotating shaft (12), and the other side of the lower limiting ring (13) is threadedly connected to the upper limiting ring (11) by the fixing bolt (14) at the intersection.

2. An indoor fresh air ventilation device according to claim 1, characterized in that: The clamping block (7) is a "T"-shaped integrated structure, and its shape and size are consistent with the side wall groove of the limit block (6). The two clamping blocks (7) are respectively located at the two ends of the arc-shaped sliding groove on the surface of the fixing ring (4).

3. The indoor fresh air ventilation device according to claim 1, characterized in that: The sealing ring (8), the limiting column (9) and the mounting tube (10) form a chimeric connection structure. Two groups of annularly distributed limiting columns (9) are respectively provided on both sides of the inner wall of the mounting tube (10) and the sealing rings (8) are respectively chimerically connected thereto.

4. The indoor fresh air ventilation device according to claim 1, characterized in that: The front end of the mounting tube (10) is provided with six groups of through grooves in an annular manner, and a cylindrical through groove is provided on one side thereof, the shape and size of which are consistent with the air inlet (2) and the exhaust port (3), and a threaded structure is provided on the outer inner wall of the mounting tube (10).

5. The indoor fresh air ventilation device according to claim 1, characterized in that: The upper limit ring (11), the rotating shaft (12) and the lower limit ring (13) form a rotary connection structure.

6. The indoor fresh air ventilation device according to claim 1, characterized in that: The upper limit ring (11), the lower limit ring (13) and the fixing bolt (14) form a threaded connection structure.

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