A heating and ventilation air outlet filtering device

Abstract

This utility model discloses a HVAC vent filtration device, comprising: a ventilation panel, which includes an annular frame 1 and fan blades 2, the fan blades 2 being disposed within the inner ring of the annular frame 1; and a filter assembly, which includes an annular slot 3, a filter plate 5, and a fixing bolt 7. The annular slot 3 is rectangular, with three sides having a groove-shaped cross-section and one side having a U-shaped cross-section. The filter plate 5 is inserted into the annular slot 3 from the U-shaped cross-section side. One side of the annular slot 3 is fixedly mounted on the frame. The annular slot 3 has a mounting hole 6 penetrating the groove-shaped sidewall on the side facing away from the frame. The fixing bolt 7 is threaded into the mounting hole 6, and can clamp or loosen the filter plate 5 after being screwed into the mounting hole 6. During installation, simply insert the filter plate 5 into the annular slot 3 from the U-shaped cross-section side and then tighten the fixing bolt 7.

Description

Technical Field

[0001] This utility model relates to the field of heating, ventilation and air conditioning equipment, and specifically to a filter device for heating, ventilation and air conditioning outlets. Background Technology

[0002] HVAC ducts are commonly used components in purification systems (supply and return air ducts), central air conditioning ventilation ducts, industrial supply and exhaust ventilation ducts, and environmental protection systems (suction and exhaust air ducts). However, with the continuous accumulation of various harmful substances emitted into the air over the years, air quality has become severely polluted. Particulate matter and various toxic and harmful gaseous pollutants in the air pose a serious threat to human life. Polluted air passing through HVAC ducts directly enters indoor spaces, causing adverse effects on human health. Filter modules are typically installed at the inlet or outlet of HVAC ducts. Especially in cleanrooms, filter modules need to be replaced regularly. To achieve good filtration results, the filter modules must have excellent sealing performance; however, good sealing performance often makes disassembly more difficult and replacement more laborious. Utility Model Content

[0003] The purpose of this utility model is to provide a HVAC air outlet filtration device, and the specific technical solution is as follows:

[0004] A HVAC outlet filtration device includes: a ventilation panel, which includes an annular frame and fan blades, with the fan blades disposed within the inner ring of the annular frame; and a filter assembly, which includes an annular slot, a filter plate, and a fixing bolt. The annular slot is rectangular, with three sides having a groove-shaped cross-section and one side having a U-shaped cross-section. The filter plate is inserted into the annular slot from the U-shaped cross-section side. One side of the annular slot is fixedly mounted on the frame. The side of the annular slot facing away from the frame has a mounting hole penetrating the groove-shaped sidewall of the annular slot. The fixing bolt is threaded into the mounting hole, and the fixing bolt can clamp or loosen the filter plate after being screwed into the mounting hole.

[0005] A first annular sealing ring is provided inside the annular slot. An installation hole is provided on one side wall of the groove of the annular slot, and the first annular sealing ring is provided on the other side wall of the groove of the annular slot. The first annular sealing ring is clamped or released with the filter plate under the action of the fixing bolt.

[0006] The filter plate includes annular clamps, a filter screen, and mounting bolts. There are two annular clamps, and the filter screen is placed between the two annular clamps. The mounting bolts are threaded into the two annular clamps and pass through the two annular clamps to clamp or loosen them.

[0007] The filter screen has positioning holes around its perimeter, each corresponding to a mounting bolt. The mounting bolt passes through the first annular clamp, the positioning hole, and the second annular clamp in sequence to stretch the filter screen and prevent wrinkles that could reduce its lifespan and performance.

[0008] Two annular clamping plates are each equipped with a second annular sealing ring on the side facing the filter screen. The second sealing ring is located on the inner side of the positioning hole.

[0009] The above-mentioned technical solution of this utility model has the following beneficial technical effects: During installation, simply insert the filter plate into the annular slot from the side with the "U"-shaped cross-section, then tighten the fixing bolt. The fixing bolt squeezes the filter plate, and the filter plate compresses the first annular sealing ring to achieve a seal. To remove, simply untwist the fixing bolt and pull out the filter plate. This satisfies both the filtration and sealing requirements of the air outlet and facilitates easy disassembly. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the filter plate in this utility model;

[0012] Wherein: 1-ring frame, 2-fan blade, 3-ring slot, 4-first ring seal, 5-filter plate, 51-ring clamp, 52-filter screen, 53-mounting bolt, 54-positioning hole, 55-second ring seal, 6-mounting hole, 7-fixing bolt. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0014] A HVAC vent filtration device includes: a ventilation panel comprising an annular frame 1 and fan blades 2, the fan blades 2 being disposed within the inner ring of the annular frame 1; and a filter assembly comprising an annular slot 3, a filter plate 5, and a retaining bolt 7. The annular slot 3 is rectangular, with three sides having a concave cross-section and one side having a U-shaped cross-section. The filter plate 5 is inserted into the annular slot 3 through the U-shaped cross-section. One side of the annular slot 3 is fixedly mounted on the frame. A mounting hole 6 penetrating the concave sidewall of the annular slot 3 is provided on the side of the annular slot 3 facing away from the frame. The retaining bolt 7 is threaded into the mounting hole 6, and can clamp or loosen the filter plate 5 after being screwed into the mounting hole 6. During installation, simply insert the filter plate 5 into the annular slot 3 through the U-shaped cross-section and then tighten the retaining bolt 7. The retaining bolt 7 compresses the filter plate 5, and the filter plate 5 compresses the first annular sealing ring 4 to achieve a seal. During removal, simply untwist the retaining bolt 7 and pull out the filter plate 5. It satisfies the filtration and sealing requirements of the air outlet, and also allows for easy disassembly.

[0015] The annular slot 3 is provided with a first annular sealing ring 4. The annular slot 3 has an installation hole 6 on one side wall of the groove and a first annular sealing ring 4 on the other side wall of the groove. The first annular sealing ring 4 is clamped or released with the filter plate 5 under the action of the fixing bolt 7.

[0016] The filter plate 5 includes annular clamps 51, a filter screen 52, and mounting bolts 53. The annular clamps 51 are configured as two pieces, and the filter screen 52 is disposed between the two annular clamps 51. The mounting bolts 53 are threadedly engaged with the two annular clamps 51 and pass through the two annular clamps 51 to clamp or loosen the two annular clamps 51.

[0017] The filter screen 52 has positioning holes 54 around its perimeter, each corresponding to a mounting bolt 53. The mounting bolt 53 passes sequentially through the first annular clamping plate 51, the positioning holes 54, and the second annular clamping plate 53 to stretch the filter screen 52 and prevent wrinkles that could reduce its service life and performance. Each of the two annular clamping plates 51 has a second annular sealing ring 55 on the side facing the filter screen 52, located on the inner side of the positioning hole 54.

Claims

1. A HVAC air outlet filter device, characterized in that, include: A ventilation panel, the ventilation panel including an annular frame (1) and fan blades (2), the fan blades (2) being disposed in the inner ring of the annular frame (1); The filter assembly includes an annular slot (3), a filter plate (5), and a fixing bolt (7). The annular slot (3) is rectangular, with three sides having a groove-shaped cross-section and one side having a U-shaped cross-section. The filter plate (5) is inserted into the annular slot (3) from the U-shaped cross-section side. One side of the annular slot (3) is fixedly mounted on the frame. The annular slot (3) has a groove-shaped sidewall that penetrates the annular slot (3) on the side facing away from the frame. The mounting hole (6) and the fixing bolt (7) are threaded together. After the fixing bolt (7) is screwed into the mounting hole (6), it can clamp or loosen the filter plate (5). A first annular sealing ring (4) is provided in the annular slot (3). The mounting hole (6) is provided on one side wall of the groove of the annular slot (3), and the first annular sealing ring (4) is provided on the other side wall of the groove of the annular slot (3). The first annular sealing ring (4) is clamped or released with the filter plate (5) under the action of the fixing bolt (7).

2. The HVAC air outlet filter device as described in claim 1, characterized in that, The filter plate (5) includes annular clamps (51), a filter screen (52), and mounting bolts (53). The annular clamps (51) are configured as two pieces, and the filter screen (52) is disposed between the two annular clamps (51). The mounting bolts (53) are threadedly engaged with the two annular clamps (51) and pass through the two annular clamps (51) to clamp or loosen the two annular clamps (51).

3. The HVAC air outlet filter device as described in claim 2, characterized in that, The filter screen (52) is provided with positioning holes (54) around its perimeter. The positioning holes (54) correspond one-to-one with the mounting bolts (53). The mounting bolts (53) pass through the first annular clamp (51), the positioning holes (54), and the second annular clamp (51) in sequence to stretch the filter screen (52) to prevent the filter screen (52) from wrinkling and reducing its service life and performance.

4. The HVAC outlet filter device as described in claim 3, characterized in that, The two annular clamps (51) facing the filter screen (52) are respectively provided with a second annular sealing ring (55), and the second annular sealing ring (55) is located on the inner side of the positioning hole (54).

Images