Heating ventilation air conditioner filtering device

Abstract

The utility model discloses a heating ventilation air conditioner filtering device which comprises a fixed air pipe, the end of the fixed air pipe is connected with a connecting air pipe through a flange, a first air inlet pipe and a second air inlet pipe are inserted into the inner wall of the fixed air pipe in a sliding mode, the inner end of the second air inlet pipe is perpendicularly inserted into a vertical penetrating hole of the first air inlet pipe in a sliding mode, and the vertical penetrating hole is communicated with an air channel of the first air inlet pipe. Part of the second air inlet pipe is pulled out of the fixed air pipe, a guide rod is fixedly connected between the top inner wall and the bottom inner wall of the fixed air pipe, a transverse lug plate connected with a side plate of the second air inlet pipe slidably sleeves the guide rod, and at the moment, a gap is reserved between a second air outlet of the second air inlet pipe and the top inner wall of the fixed air pipe, so that the second air inlet pipe is communicated with the connecting air pipe and works; when the second air pipe does not work, the second air inlet pipe is pulled outwards so that the second air inlet pipe can be completely separated from the first air inlet pipe, then the first air inlet pipe is pulled outwards, finally the second air inlet pipe is pushed along the guide rod so that the second air outlet can be attached to the top inner wall of the fixed air pipe, and at the moment, the first air inlet pipe works.

Description

Technical Field

[0001] The utility model relates to the technical field of heating, ventilation and air conditioning, and particularly relates to a filtering device for heating, ventilation and air conditioning. Background Technique

[0002] A heating, ventilation and air conditioning (HVAC) is an air conditioner with functions of heating, ventilation and air conditioning, including these three functions of heating, ventilation and air conditioning.

[0003] A filtering device is installed in the HVAC. The air entering the room is filtered by the filtering device. Its main purpose is to remove impurities such as dust, bacteria, and mold in the air to ensure the cleanliness of the indoor air.

[0004] When using the HVAC, air is inhaled into the connecting pipe through the air inlet, and then the air passes through the condenser to cool the air. In the prior art, during the air circulation, the air is filtered by the filter plate in the air inlet pipe to ensure the cleanliness of the air entering the HVAC and improve the service life of the HVAC. However, during the long-term use process, too many impurities are filtered in the filter plate, which affects the ventilation effect. When it is necessary to clean or replace the filter plate, the use of the HVAC needs to be stopped, which affects the normal use. Therefore, we propose a filtering device for heating, ventilation and air conditioning. Content of the Utility Model

[0005] The purpose of the utility model is to solve the above technical problems and provide a filtering device for heating, ventilation and air conditioning, which solves the problems that during the long-term use process, too many impurities are filtered in the filter plate, which affects the ventilation effect, and when it is necessary to clean or replace the filter plate, the use of the HVAC needs to be stopped, which affects the normal use.

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

[0007] A heating, ventilation and air conditioning (HVAC) filtration device, including a fixed air duct, the end of the fixed air duct is connected with a connecting air duct through a flange, and it is characterized in that: a first air inlet duct and a second air inlet duct are slidably inserted into the inner wall of the fixed air duct, the inner end of the second air inlet duct is slidably and vertically inserted into the vertical through hole at the inner end of the first air inlet duct, the vertical through hole is communicated with the air duct of the first air inlet duct, a part of the second air inlet duct is pulled out of the fixed air duct, a guide rod is fixedly connected between the inner wall of the top plate and the inner wall of the bottom plate of the fixed air duct, a transverse ear plate connected to the side plate of the second air inlet duct is slidably sleeved on the guide rod, a spring is sleeved on the guide rod below the transverse ear plate, and two ends of the spring are respectively fixedly connected to the transverse ear plate and the bottom plate of the fixed air duct. At this time, a gap is left between the second air outlet of the second air inlet duct and the inner wall of the top plate of the fixed air duct so that the air duct of the second air inlet duct is communicated with the inner cavity of the fixed air duct and works; when the second air inlet duct does not work, the second air inlet duct is pulled outwards to completely separate the second air inlet duct from the first air inlet duct, and then the first air inlet duct and the second air inlet duct are pulled outwards until they no longer overlap. Under the rebounding action of the spring, the second air inlet duct moves towards the inside of the fixed air duct along the guide rod so that the second air outlet of the second air inlet duct fits against the inner wall of the top plate of the fixed air duct. At this time, the air duct of the first air inlet duct is communicated with the inner cavity of the fixed air duct and works.

[0008] The first air inlet duct is in a horizontal shape, the inner end plate of the first air inlet duct is in a closed shape, upper openings and lower openings communicated with the first air inlet duct are correspondingly formed in the top wall and the bottom wall of the first air inlet duct, the vertical through hole is formed between the upper opening and the lower opening, the upper and lower openings are the first air outlets, the second air inlet duct is in a vertical shape, a second limiting seat is fixedly sleeved on the outer wall of the second air inlet duct, the bottom wall of the outer circle of the vertical through hole of the first air inlet duct presses against the second limiting seat, the bottom end of the vertical plate of an L-shaped support plate is fixedly connected to the side wall of the second limiting seat of the second air inlet duct, a guide rod is slidably inserted into the transverse ear plate of the L-shaped support plate, and a gap is formed between the L-shaped support plate and the second air inlet duct for the outer wall of the vertical through hole of the first air inlet duct to be inserted.

[0009] A sealing ring is annularly arranged on the top wall of the second air outlet of the second air inlet duct.

[0010] A first limiting seat is fixedly sleeved on the outer wall of the vertical through hole of the first air inlet duct to prevent the first air inlet duct from separating from the fixed air duct when it is pulled outwards.

[0011] A first connecting plate is fixedly connected to the first air inlet of the first air inlet duct, a louver is arranged at the air inlet on the first connecting plate, a second connecting plate is fixedly connected to the second air inlet of the second air inlet duct, and a louver aligned with the first air inlet is arranged on the second connecting plate.

[0012] Advantages of the present utility model: When the filtering effect of the filter plate in the second air inlet pipe is poor, the second air inlet pipe is separated from the first air inlet pipe by pulling, and then the first air inlet pipe is pulled outwards so that it does not overlap with the second air inlet pipe. At this time, the second air inlet pipe moves into the fixed air pipe under the action of the spring and fits with the top plate of the fixed air pipe to seal the second air inlet pipe. At this time, air enters the fixed air pipe through the first air inlet pipe, and the filter plate in the first air inlet pipe filters the air, so that the filter plate in the second air inlet pipe can be cleaned or replaced to ensure the air filtering efficiency. Brief Description of the Drawings

[0013] In order to more clearly illustrate the embodiments of the present utility model, the following will describe the embodiments in conjunction with the accompanying drawings.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model (the second air inlet pipe is working).

[0015] Figure 2 It is a three-dimensional structural schematic diagram with the connecting air pipe removed (the second air inlet pipe is working).

[0016] Figure 3 It is Figure 2 A three-dimensional structural schematic diagram with the side plate of the fixed air pipe removed in (the second air inlet pipe is working).

[0017] Figure 4 It is Figure 3 A structural schematic diagram with the fixed air pipe removed in .

[0018] Figure 5 It is a structural schematic diagram of the working state of the first air inlet pipe (the fixed air pipe is removed).

[0019] In the figure: 1, fixed air pipe; 101, connecting air pipe; 2, first air inlet pipe; 201, first connecting plate; 202, first air outlet; 203, first limiting seat; 3, second air inlet pipe; 301, second connecting plate; 302, second air outlet; 303, second limiting seat; 4, L-shaped support plate; 401, vertical plate; 402, horizontal ear plate; 403, guide rod; 404, spring. Specific Embodiments

[0020] The following only uses embodiments to illustrate the possible implementation modes of the present utility model, but is not intended to limit the scope to be protected by the present utility model. First, it is stated.

[0021] Such as Figures 1 to 5As shown in the figure, this is a preferred embodiment of the present utility model. A heating, ventilation and air conditioning (HVAC) filtration device includes a fixed air duct 1. The end of the fixed air duct 1 is connected to a connecting air duct 101 through a flange. A first air inlet duct 2 and a second air inlet duct 3 are slidably inserted into the inner wall of the fixed air duct 1. The first air inlet duct 2 is horizontal, and the inner end plate of the first air inlet duct 2 is closed. Upper openings and lower openings are correspondingly formed on the top plate and the bottom plate at the inner end of the first air inlet duct to form a first air outlet 202 of the first air inlet duct 2. The vertical through hole is formed between the upper opening and the lower opening. The second air inlet duct 3 is vertical. The upper part of the inner end of the second air inlet duct 3 is slidably and vertically inserted into the vertical through hole at the inner end of the first air inlet duct 2. The lower part of the second air inlet duct 3 is pulled out of the fixed air duct 1. Two groups of guide rods 403 are fixedly connected between the inner wall of the top plate and the inner wall of the bottom plate of the fixed air duct 1. A second limit seat 303 is sleeved on the outer wall of the second air inlet duct 3. The bottom wall of the outer circle of the vertical through hole of the first air inlet duct 2 is pressed against the second limit seat 303. The bottom end of the vertical plate 401 of the L-shaped support plate 4 is fixedly connected to the side wall of the second limit seat 303 of the second air inlet duct 3. The horizontal ear plate 402 of the L-shaped support plate 4 is slidably sleeved on the guide rod 403. A gap is formed between the L-shaped support plate 4 and the second air inlet duct 3 for the outer wall of the vertical through hole of the first air inlet duct 2 to be inserted. A compression spring 404 is sleeved on the guide rod 403 below the horizontal ear plate 402. The two ends of the compression spring are respectively fixedly connected to the horizontal ear plate and the bottom plate of the fixed air duct. At this time, a gap is left between the second air outlet of the second air inlet duct and the inner wall of the top plate of the fixed air duct so that the air duct of the second air inlet duct communicates with the inner cavity of the fixed air duct and works (such as Figures 1 to 4 ). When the second air duct does not work, the second air inlet duct is pulled outwards so that the second air inlet duct is completely separated from the first air inlet duct. Then, the first air inlet duct and the second air inlet duct are pulled outwards so that they do not overlap. Under the rebound action of the spring, the second air inlet duct moves towards the inner side of the fixed air duct along the guide rod, so that the second air outlet of the second air inlet duct fits with the inner wall of the top plate of the fixed air duct to form a seal. At this time, the first air inlet duct communicates with the fixed air duct to work, and the filter plate in the first air inlet duct filters the air. At this time, the filter plate in the second air inlet duct can be cleaned or replaced.

[0022] When the filter plate in the first air inlet duct 2 cannot filter well, by inserting the second air inlet duct 3 into the first air inlet duct 2 and restoring it to the starting position ( Figure 3 ), the air enters the fixed air duct 1 through the second air inlet duct 3, and the air can be filtered by the filter plate in the second air inlet duct 3 to ensure the air filtration efficiency.

[0023] In order to increase the sealing effect, a sealing ring is provided around the top wall of the second air outlet of the second air inlet duct 3.

[0024] A first limit seat 203 is fixedly sleeved on the outer wall of the vertical perforation close to the first air inlet pipe to prevent the first air inlet pipe 2 from separating from the fixed air pipe 1 when being pulled outwards.

[0025] A first connecting plate 201 is fixedly connected to the first air inlet of the first air inlet pipe 2. When the second air inlet pipe works, the first connecting plate 201 is attached to the outer wall of the fixed air pipe 1. A louver is provided at the air inlet corresponding to the first connecting plate. A second connecting plate 301 is fixedly connected to the second air inlet of the second air inlet pipe 3, and the second connecting plate is provided with a louver aligned with the first air inlet.

[0026] In summary, the utility model realizes that air enters the fixed air pipe 1 through the second air inlet pipe 3, enters the room through the fixed air pipe 1, and the air is filtered by the filter plate in the second air inlet pipe 3. When the filtering effect of the filter plate in the second air inlet pipe 3 is poor, first pull the second air inlet pipe 2 to move outwards from the fixed air pipe and separate from the first air inlet pipe 3, and then pull the first air inlet pipe outwards, so that the first air inlet pipe 2 and the second air inlet pipe 3 do not overlap. At this time, under the rebound of the spring 404, the second air inlet pipe moves inwards towards the fixed air pipe, so that the second air inlet of the second air inlet pipe 3 is attached to the top inner wall of the fixed air pipe 1 to seal the second air inlet pipe 3. At this time, air enters the fixed air pipe 1 through the first air inlet pipe 2, and the filter plate in the first air inlet pipe 2 filters the air. At this time, the filter plate in the second air inlet pipe 3 can be cleaned or replaced.

[0027] When the filter plate in the first air inlet pipe 2 cannot filter well, at this time, insert the second air inlet pipe 3 into the first air inlet pipe 2 to restore to the starting position, so that air enters the fixed air pipe 1 through the second air inlet pipe 3, and the air can be filtered by the filter plate in the second air inlet pipe 3 to ensure the air filtering efficiency. At this time, the filter plate in the first air inlet pipe 2 can be cleaned or replaced for standby.

Claims

1. A HVAC filter device, comprising a fixed air duct, the end of which is connected to a connecting air duct via a flange, characterized in that: The first air inlet duct and the second air inlet duct are slidably inserted on the inner wall of the fixed air duct, the inner end portion of the second air inlet duct is slidably inserted into the vertical through hole at the inner end portion of the first air inlet duct, the vertical through hole is connected to the air duct of the first air inlet duct, and the second air inlet duct is partially pulled out of the fixed air duct, and a guide rod is fixedly connected between the inner wall of the top plate and the inner wall of the bottom plate of the fixed air duct, and the transverse ear plate connected to the side plate of the second air inlet duct is slidably sleeved on the guide rod, and a spring is sleeved on the guide rod below the transverse ear plate, and the two ends of the spring are respectively fixedly connected to the transverse ear plate and the bottom plate of the fixed air duct. A gap is left between the second air outlet of the air inlet duct and the inner wall of the top plate of the fixed air duct so that the air duct of the second air inlet duct communicates with the inner cavity of the fixed air duct and works; when the second air inlet duct is not working, the second air inlet duct is pulled outward to completely separate the second air inlet duct from the first air inlet duct, and then the first air inlet duct is pulled outward so that the second air inlet duct no longer overlaps with the second air inlet duct, and under the rebound action of the spring, the second air inlet duct moves along the guide rod toward the fixed air duct so that the second air outlet of the second air inlet duct fits with the inner wall of the top plate of the fixed air duct. At this time, the air duct of the first air inlet duct communicates with the inner cavity of the fixed air duct and works.

2. A HVAC filter device according to claim 1, characterized in that: The first air inlet duct is horizontal, and the inner end plate of the first air inlet duct is closed. An upper opening and a lower opening connected to the first air inlet duct are correspondingly provided on the top wall and the bottom wall of the first air inlet duct. The vertical through hole is formed between the upper opening and the lower opening, and the upper and lower openings are the first air outlet. The second air inlet duct is vertical, and the outer wall of the second air inlet duct is sleeved with a second limit seat. The outer ring bottom wall of the vertical through hole of the first air inlet duct is pressed against the second limit seat, and the side wall of the second limit seat of the second air inlet duct is fixedly connected to the bottom end of the vertical plate of the L-shaped support plate, and the horizontal ear plate of the L-shaped support plate is slidably inserted with a guide rod, and the L-shaped support plate forms a gap with the second air inlet duct for the outer wall of the vertical through hole of the first air inlet duct to be inserted.

3. A HVAC filter device according to claim 1, characterized in that: A sealing ring is arranged around the top wall of the second air outlet of the second air inlet pipe.

4. A HVAC filter device according to claim 1, characterized in that: A first limiting seat is fixedly sleeved on the outer wall of the vertical perforation close to the first air inlet pipe to prevent the first air inlet pipe from being separated from the fixed air duct when being pulled outward.

5. A HVAC filter device according to claim 1, characterized in that: A first connecting plate is fixedly connected to the first air inlet of the first air inlet pipe, and a louver is provided on the first connecting plate aligned with the air inlet. A second connecting plate is fixedly connected to the second air inlet of the second air inlet pipe, and the second connecting plate is provided with a louver aligned with the first air inlet.

Images