Filtering device for heat supply ventilation and air conditioning engineering

Abstract

The utility model discloses a filtering device for heat supply ventilation and air conditioning engineering, which comprises a filtering main body, the inner wall of the filtering main body is fixedly connected with a fan, the inner wall of the filtering main body is fixedly connected with a heater, one end of the filtering main body is provided with an air inlet, and the other end of the filtering main body is provided with an air outlet. An annular opening is formed in the outer wall of the filtering main body, a first filtering net, a second filtering net and a third filtering net are slidably connected to the inner wall of the annular opening, a connecting rod is fixedly connected to the outer wall of the filtering main body, a collecting opening is formed in the outer wall of the filtering main body, and a collecting box is fixedly connected to the outer wall of the filtering main body; according to the filter screen cleaning device, the surface of the second filter screen and the surface of the third filter screen are cleaned through the first annular cleaning brush and the second annular cleaning brush, workers do not need to replace and clean all the filter screens in a time-consuming and labor-consuming mode, and the service life of the filter screens is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a filtering device for heating, ventilation and air conditioning engineering. Background Art

[0002] Heating, ventilation and air-conditioning engineering is an indispensable part of the basic construction field. It plays a very important role in the rational use of resources, energy conservation, environmental protection and improving the quality of life. Filtration is required in heating, ventilation and air-conditioning engineering. Air filters are mainly used to filter particulate matter, bacteria, viruses and harmful gases in the air to ensure the cleanliness and health of indoor air.

[0003] The existing authorized patent number is CN 217041798 U, which is an easy-to-clean filtering device for heating, ventilation and air-conditioning engineering. The device comprises an externally arranged box body, an air inlet arranged through the left side of the box body, an air outlet arranged on the right side of the box body, an activated carbon filter arranged on the inner side of the box body near the air outlet, and a heating melt arranged on one side of the activated carbon filter screen. The device also comprises an upper sealing box, a first motor, a dust-proof plate and a tension spring. The upper sealing box is installed on the top of the box body, the first motor is installed in the middle of the upper sealing box, a discharge roller connected to the first motor is installed inside the upper sealing box, a lower sealing box is installed on the bottom of the box body, a second motor is installed in the middle of the lower sealing box, and a third motor is installed on one side of the second motor.

[0004] The above-mentioned equipment has a reasonable structure. When the unwinding roller unwinds the used filter, it is cleaned by the dust removal brush and then wound around the receiving roller. The unused filter released by the unwinding roller can continue to filter, and the filtering effect is not affected during cleaning. However, the existing filtering device for heating, ventilation and air-conditioning engineering only has one layer of filter, which is difficult to effectively filter impurities in the air. In addition, the filter is repeatedly rolled up by the unwinding roller during the cleaning process. After long-term use, the filtering diameter of the filter will become larger, resulting in poor filtering effect of the filter and shortened service life. Utility Model Content

[0005] The purpose of the utility model is to provide a filtering device for heating, ventilation and air conditioning engineering to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A filtering device for heating, ventilation and air conditioning engineering, comprising:

[0008] It comprises a filter body, the inner wall of which is fixedly connected with a fan, the inner wall of which is fixedly connected with a heater, one end of which is provided with an air inlet, and the other end of which is provided with an air outlet;

[0009] The outer wall of the filter body is provided with an annular opening, and the inner wall of the annular opening is slidably connected with the first filter screen, the second filter screen and the third filter screen, the outer wall of the filter body is fixedly connected with a connecting rod, the outer wall of the filter body is provided with a collecting port, the outer wall of the filter body is fixedly connected with a collecting box, the top of the collecting box is slidably connected with a cover plate, and the cover plate is located on one side of the collecting port, and the inside of the collecting box is slidably connected with a collecting trough.

[0010] As an optional technical solution, the interior of the connecting rod is rotatably connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to a first connecting ring, and the outer wall of the first connecting ring is fixedly connected to one end of the first filter screen.

[0011] As an optional technical solution, the outer wall of the connecting rod is rotatably connected to a second connecting ring, and the outer wall of the second connecting ring is fixedly connected to one end of the second filter screen.

[0012] As an optional technical solution, the outer wall of the connecting rod is rotatably connected to a third connecting ring, and the outer wall of the third connecting ring is fixedly connected to one end of the third filter screen.

[0013] As an optional technical solution, a first fixing ring is fixedly connected to the outer wall of the rotating shaft, a first annular cleaning brush is fixedly connected to the outer wall of the first fixing ring, and the first annular cleaning brush is located on one side of the second filter.

[0014] As an optional technical solution, the outer wall of the rotating shaft is fixedly connected with a second fixing ring, the outer wall of the second fixing ring is fixedly connected with a second annular cleaning brush, and the second annular cleaning brush is located on one side of the third filter.

[0015] As an optional technical solution, an arc-shaped sliding groove is opened on the inner wall of the connecting rod, a sliding block is slidably connected to the inner wall of the arc-shaped sliding groove, and the outer walls on both sides of the first connecting ring of the sliding block are fixedly connected.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The first filter of the utility model has a larger filter aperture, and more dust and impurities adhere to the surface, which requires frequent replacement and cleaning. The filter apertures of the second and third filters are gradually reduced, and are used to filter fine particles. The cleaning and replacement frequency is low. By rotating the first connecting ring to drive the rotating shaft to rotate, the first annular cleaning brush and the second annular cleaning brush can be driven to clean the surface of the second and third filters. The staff does not need to spend time and effort to replace and clean all the filters, and the service life of the filters is extended.

[0018] 2. The utility model filters the inhaled air layer by layer through the first filter, the second filter and the third filter. The filter apertures of the first filter, the second filter and the third filter are gradually reduced, so that the inhaled air can be filtered and cleaned to the greatest extent, thereby improving the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the utility model;

[0020] Figure 2 This is a schematic diagram of the filter structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the annular cleaning brush of the utility model;

[0022] Figure 4 This is a schematic diagram of the connecting ring structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the collection box of the utility model;

[0024] Figure 6 It is a cross-sectional view of the utility model.

[0025] In the figure: 1. filter body; 2. fan; 3. heater; 4. air inlet; 5. air outlet; 6. annular opening; 7. first filter; 8. second filter; 9. third filter; 10. connecting rod; 11. collecting port; 12. collecting box; 13. cover plate; 14. collecting tank; 15. rotating shaft; 16. first connecting ring; 17. second connecting ring; 18. third connecting ring; 19. first fixed ring; 20. first annular cleaning brush; 21. second fixed ring; 22. second annular cleaning brush; 23. arc-shaped sliding groove; 24. sliding block. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figures 1 to 6 A filter device for heating, ventilation and air conditioning engineering, comprising a filter body 1, a fan 2 is fixedly connected to the inner wall of the filter body 1, a heater 3 is fixedly connected to the inner wall of the filter body 1, an air inlet 4 is opened at one end of the filter body 1, and an air outlet 5 is opened at the other end of the filter body 1;

[0028] An annular opening 6 is provided on the outer wall of the filter body 1, and a first filter screen 7, a second filter screen 8 and a third filter screen 9 are slidably connected to the inner wall of the annular opening 6, a connecting rod 10 is fixedly connected to the outer wall of the filter body 1, a collecting port 11 is provided on the outer wall of the filter body 1, a collecting box 12 is fixedly connected to the outer wall of the filter body 1, a cover plate 13 is slidably connected to the top of the collecting box 12, and the cover plate 13 is located on one side of the collecting port 11, and a collecting tank 14 is slidably connected to the inside of the collecting box 12.

[0029] External air is drawn into the filter body 1 from the air inlet 4 through the fan 2, the air filtered layer by layer is heated by the heater 3, and then discharged through the air outlet 5. The first filter 7, the second filter 8 and the third filter 9 can be placed through the annular opening 6. The filter apertures of the first filter 7, the second filter 8 and the third filter 9 are gradually reduced, and the inhaled air is filtered layer by layer. The rotating shaft 15 can rotate inside the connecting rod 10, and the swept dust and impurities can fall into the collection tank 14 inside the collection box 12 through the collection port 11. The cover plate 13 can prevent air leakage when filtering the air. The collection tank 14 can be drawn out, and the staff can process the dust and impurities collected in the collection tank 14.

[0030] The interior of the connecting rod 10 is rotatably connected to a rotating shaft 15, the outer wall of the rotating shaft 15 is fixedly connected to a first connecting ring 16, the outer wall of the first connecting ring 16 is fixedly connected to one end of the first filter screen 7, the outer wall of the connecting rod 10 is rotatably connected to a second connecting ring 17, the outer wall of the second connecting ring 17 is fixedly connected to the second filter screen 8, the outer wall of the connecting rod 10 is rotatably connected to a third connecting ring 18, and the outer wall of the third connecting ring 18 is fixedly connected to a third filter screen 9.

[0031] The first connecting ring 16 can be rotated by the connecting rod 10, and the first filter screen 7 can be moved out of the annular opening 6 as a whole during the rotation. The second connecting ring 17 can be rotated by the connecting rod 10, and the second filter screen 8 can be moved out of the annular opening 6 as a whole during the rotation. The third connecting ring 18 can be rotated by the connecting rod 10, and the third filter screen 9 can be moved out of the annular opening 6 as a whole during the rotation.

[0032] A first fixing ring 19 is fixedly connected to the outer wall of the rotating shaft 15 , a first annular cleaning brush 20 is fixedly connected to the outer wall of the first fixing ring 19 , and the first annular cleaning brush 20 is located on one side of the second filter screen 8 .

[0033] The first fixed ring 19 can be rotated by the rotating shaft 15, and the first annular cleaning brush 20 rotates synchronously during the rotation, and cleans the surface of the second filter screen 8 on one side.

[0034] A second fixing ring 21 is fixedly connected to the outer wall of the rotating shaft 15 , a second annular cleaning brush 22 is fixedly connected to the outer wall of the second fixing ring 21 , and the second annular cleaning brush 22 is located at one side of the third filter screen 9 .

[0035] The second fixing ring 21 can be rotated by the rotating shaft 15, and the second annular cleaning brush 22 rotates synchronously during the rotation, and cleans the surface of the third filter screen 9 on one side.

[0036] An arc-shaped sliding groove 23 is formed on the inner wall of the connecting rod 10 , and a sliding block 24 is slidably connected to the inner wall of the arc-shaped sliding groove 23 . The sliding block 24 is fixedly connected to the outer walls on both sides of the first connecting ring 16 .

[0037] The sliding block 24 slides on the inner wall of the arc-shaped sliding groove 23 to limit the rotation angle of the first connecting ring 16, and when not rotating, the first filter screen 7 can be kept in a fixed state.

[0038] Working principle, when using the filtering device for heating, ventilation and air conditioning engineering, the external air is drawn into the filter body 1 from the air inlet 4 through the fan 2, and the air is filtered layer by layer through the first filter 7, the second filter 8 and the third filter 9. After the filtration, the air is evenly heated by the heater 3 and then discharged through the air outlet 5. During use, the filter aperture of the first filter 7 is large, and there are many dust and impurities attached to the surface, which need to be frequently replaced and cleaned. The filter apertures of the second filter 8 and the third filter 9 are gradually reduced, which are used to filter fine particles, and the cleaning and replacement frequency is low. Therefore, by rotating the first connecting ring 16 to drive the rotating shaft 15 to rotate, the first annular cleaning brush 20 and the second annular cleaning brush 22 can be driven to clean the surface of the second filter 8 and the third filter 9. The dust and impurities cleaned fall into the collection tank 14 inside the collection box 12, and the collection tank 14 can be drawn out, and the staff can process the dust, impurities and particulate matter collected in the collection tank 14.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A filter device for heating, ventilation and air conditioning engineering, comprising a filter body (1), characterized in that: The inner wall of the filter body (1) is fixedly connected to a fan (2), the inner wall of the filter body (1) is fixedly connected to a heater (3), one end of the filter body (1) is provided with an air inlet (4), and the other end of the filter body (1) is provided with an air outlet (5); The outer wall of the filter body (1) is provided with an annular opening (6), the inner wall of the annular opening (6) is slidably connected with a first filter screen (7), a second filter screen (8) and a third filter screen (9), the outer wall of the filter body (1) is fixedly connected with a connecting rod (10), the outer wall of the filter body (1) is provided with a collecting port (11), the outer wall of the filter body (1) is fixedly connected with a collecting box (12), the top of the collecting box (12) is slidably connected with a cover plate (13), and the cover plate (13) is located on one side of the collecting port (11), and the interior of the collecting box (12) is slidably connected with a collecting trough (14).

2. A filter device for heating, ventilation and air conditioning engineering according to claim 1, characterized in that: The interior of the connecting rod (10) is rotatably connected to a rotating shaft (15), the outer wall of the rotating shaft (15) is fixedly connected to a first connecting ring (16), and the outer wall of the first connecting ring (16) is fixedly connected to one end of the first filter screen (7).

3. A filter device for heating, ventilation and air conditioning engineering according to claim 1, characterized in that: The outer wall of the connecting rod (10) is rotatably connected to a second connecting ring (17), and the outer wall of the second connecting ring (17) is fixedly connected to one end of the second filter screen (8).

4. A filter device for heating, ventilation and air conditioning engineering according to claim 1, characterized in that: The outer wall of the connecting rod (10) is rotatably connected to a third connecting ring (18), and the outer wall of the third connecting ring (18) is fixedly connected to one end of a third filter screen (9).

5. A filter device for heating, ventilation and air conditioning engineering according to claim 2, characterized in that: A first fixing ring (19) is fixedly connected to the outer wall of the rotating shaft (15), a first annular cleaning brush (20) is fixedly connected to the outer wall of the first fixing ring (19), and the first annular cleaning brush (20) is located on one side of the second filter screen (8).

6. A filter device for heating, ventilation and air conditioning engineering according to claim 2, characterized in that: A second fixing ring (21) is fixedly connected to the outer wall of the rotating shaft (15), a second annular cleaning brush (22) is fixedly connected to the outer wall of the second fixing ring (21), and the second annular cleaning brush (22) is located on one side of the third filter screen (9).

7. A filter device for heating, ventilation and air conditioning engineering according to claim 1, characterized in that: The inner wall of the connecting rod (10) is provided with an arc-shaped sliding groove (23), the inner wall of the arc-shaped sliding groove (23) is slidably connected with a sliding block (24), and the outer walls on both sides of the sliding block (24) of the first connecting ring (16) are fixedly connected.

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