Air filter of heating ventilation air conditioner

Abstract

The utility model relates to the technical field of air filters, in particular to an air filter of a heating ventilation air conditioner. Comprising a pipe head with an air hole in the front end and an inner frame arranged in the pipe head, side doors are connected to the left side and the right side of the pipe head, side holes are formed in the side doors, the left end and the right end of the inner frame are in sliding contact with the two side holes respectively, a plurality of indicators are arranged on each side door, and a filter plate is arranged in the inner frame. The inner frame and the front end of the outer wall of the pipe head are fixedly connected with a spring; vertically corresponding limiting grooves are formed in the inner side of the front end of the inner frame, and the upper end and the lower end of the filter plate are in sliding contact with the two limiting grooves respectively; and the amount of impurities such as filtered dust can be reflected in time in the use process, so that the impurities can be cleaned in time.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, more specifically to a heating, ventilation and air conditioning air filter. Background Art

[0002] An air filter is a device that captures dust from a gas-solid two-phase flow and purifies the gas through the action of a porous filter material. It purifies the air with a low dust content and sends it into the room to ensure the process requirements of the clean room and the air cleanliness in a general air-conditioned room. However, although the air filters currently used in existing HVAC systems can filter dust in the air, they cannot promptly reflect the amount of filtered dust during the filtering process so that the user can know in time to clean it. Therefore, the present application proposes a HVAC air filter that can effectively solve the above-mentioned problem. Utility Model Content

[0003] The utility model provides a heating, ventilation and air conditioning air filter, which has the beneficial effect of being able to timely reflect the amount of impurities such as dust filtered out during use so as to facilitate timely cleaning.

[0004] A HVAC air filter comprises a pipe head with an air hole at the front end and an inner frame arranged inside the pipe head, side doors are connected on the left and right sides of the pipe head, side holes are arranged on the side doors, left and right ends of the inner frame are respectively slidably contacted in the two side holes, each side door is provided with a plurality of indicator marks, a filter plate is arranged in the inner frame, and a spring is fixedly connected to the front end of the inner frame and the outer wall of the pipe head.

[0005] The inner side of the front end of the inner frame is provided with upper and lower corresponding limiting grooves, and the upper and lower ends of the filter plate are respectively slidably contacted in the two limiting grooves.

[0006] The inner walls on the left and right sides of the inner frame are provided with through holes for the filter plate to penetrate into the inner frame.

[0007] The front end of the tube head is formed with slideways on both the upper and lower sides, and a baffle capable of covering the air hole is in sliding contact between the two slideways.

[0008] The outer wall of the inner frame contacts the inner wall surface of the pipe head.

[0009] The rear end of the pipe head is detachably connected with a pipeline.

[0010] The inner diameter of the pipeline increases gradually from front to back. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0012] Figure 1It is a schematic diagram of the structure of a HVAC air filter;

[0013] Figure 2 This is a schematic diagram of the structure of the HVAC air filter in another direction;

[0014] Figure 3 It is a structural schematic diagram of the pipe head;

[0015] Figure 4 This is a schematic diagram of the structure of the side door;

[0016] Figure 5 It is a structural diagram of the inner frame;

[0017] Figure 6 It is a schematic diagram of the structure inside the tube head;

[0018] In the figure: pipeline 01; pipe head 02; side door 03; side hole 04; indicator mark 05; slideway 06; baffle 07; inner frame 08; filter plate 09; limit groove 10. DETAILED DESCRIPTION

[0019] Reference Figures 1 to 6 From the structure in the figure, we can understand the implementation process of the utility model for timely knowing the amount of dust and other impurities filtered out.

[0020] A heating and ventilation air conditioning air filter, comprising a pipe head 02 with an air hole at the front end, and an inner frame 08 arranged inside the pipe head 02, the left and right sides of the pipe head 02 are connected with side doors 03, the side doors 03 are provided with side holes 04, the left and right ends of the inner frame 08 are respectively slidably contacted in the two side holes 04, each side door 03 is provided with a plurality of indicator marks 05, a filter plate 09 is provided in the inner frame 08, and the inner frame 08 is fixedly connected to the front end of the outer wall of the pipe head 02 by a spring; under normal conditions, the inner frame 08 is pressed against the side hole 04 by the action of the spring. The rear end of the inner frame 08 allows the air emitted by the HVAC to enter the pipe head 02 when in use. The air enters the inner frame 08 from the rear end of the inner frame 08 and is filtered by the filter plate 09. When the air acts on the filter plate 09, the dust will be filtered out by the filter plate 09. As the dust accumulates, the wind resistance of the filter plate 09 will increase. At this time, the force generated when the air flows will push the filter plate 09 to make the inner frame 08 slide forward in the pipe head 02 and the side hole 04. The amount of dust accumulated on the filter plate 09 can be known by the sliding amount of the inner frame 08.

[0021] In order to further facilitate observation of the sliding amount of the inner frame 08, a plurality of indicator marks 05 are provided on each side door 03. During use, the position of the inner frame 08 corresponding to one of the indicator marks 05 can be used to make a judgment. The indicator mark 05 located on the rear side indicates that the amount of dust accumulation is small, while the indicator mark 05 located on the front side indicates that the amount of dust accumulation is large. In addition, a handle is provided on the side door 03, which is convenient for the user to operate when opening and closing the side door 03. At the same time, a buckle is provided on the side door 03, which can be connected to the pipe head 02 for fixing, so as to prevent the side door 03 from opening due to air flow.

[0022] The side door 03 can be opened to facilitate taking out the inner frame 08 to clean and replace the filter plate 09;

[0023] Furthermore, the outer wall of the inner frame 08 is in contact with the inner wall of the tube head 02, so that all the air in the tube head 02 can flow into the inner frame 08, avoiding a gap between the two that causes air leakage and inability to be completely filtered;

[0024] The rear end of the pipe head 02 is detachably connected with a pipe 01 . The pipe 01 can be installed between the air conditioner and the pipe head 02 to guide the air flow and increase the connection space of the pipe head 02 .

[0025] Reference Figures 1 to 6 From the structure in the figure, we can understand an implementation process of keeping the filter plate 09 in a vertical state in the utility model.

[0026] The inner side of the front end of the inner frame 08 is provided with upper and lower corresponding limit grooves 10, and the upper and lower ends of the filter plate 09 are respectively slidably contacted in the two limit grooves 10; when installing the filter plate 09, the upper and lower corresponding limit grooves 10 can be used to keep the filter plate 09 in a vertical state when installed in the inner frame 08, so that the air flow direction blown out of the air conditioner is kept perpendicular to the filter plate 09, which can enable the filter plate 09 to fully filter the dust in the air and ensure the force exerted by the air on the filter plate 09, so as to increase the wind resistance in time to move the filter plate 09 after dust accumulates.

[0027] Reference Figures 1 to 6 From the structure in the figure, we can understand an implementation process of the utility model that facilitates the removal of the filter plate 09.

[0028] Through holes are provided on the inner walls on the left and right sides of the inner frame 08 for the filter plate 09 to penetrate into the inner frame 08; when the filter plate 09 is replaced or cleaned, the filter plate 09 can be taken out of the inner frame 08 or slid in through the through holes, making the disassembly and installation of the inner frame 08 and the filter plate 09 more convenient.

[0029] Reference Figures 1 to 6From the structure in the figure, we can understand the implementation process of the utility model to prevent external dust from entering.

[0030] The front end of the tube head 02 is formed with slideways 06 on both the upper and lower sides, and a baffle 07 capable of covering the air hole is in sliding contact between the two slideways 06; when not in use, the baffle 07 is inserted into the two slideways 06 so that the baffle 07 covers the air hole, thereby preventing dust from entering the tube head 02 from the front end when not in use and causing pollution.

[0031] Reference Figures 1 to 6 From the structure in the figure, we can understand the implementation process of air concentration in the utility model.

[0032] The inner diameter of the pipe 01 gradually increases from front to back, which can concentrate the air when it flows forward, so as to increase the force of the air on the filter plate 09, thereby ensuring that the filter plate 09 moves in time after dust accumulates.

[0033] Reference Figures 1 to 6 From the structure in the figure, we can understand an implementation process of the utility model that is easy to use.

[0034] The baffle 07 is made of hard plastic, which can make the baffle 07 light and convenient for users to operate. The inner frame 08 is made of transparent material, which is convenient for users to observe the status of the filter plate 09 in time.

Claims

1. A HVAC air filter, characterized in that: The invention comprises a pipe head (02) with an air hole at the front end, and an inner frame (08) arranged inside the pipe head (02), the left and right sides of the pipe head (02) are connected with side doors (03), the side doors (03) are provided with side holes (04), the left and right ends of the inner frame (08) are respectively slidably contacted in the two side holes (04), each side door (03) is provided with a plurality of indicator marks (05), a filter plate (09) is arranged in the inner frame (08), and a spring is fixedly connected between the inner frame (08) and the front end of the outer wall of the pipe head (02).

2. The HVAC air filter according to claim 1, characterized in that: The inner side of the front end of the inner frame (08) is provided with upper and lower corresponding limiting grooves (10), and the upper and lower ends of the filter plate (09) are respectively slidably contacted in the two limiting grooves (10).

3. The HVAC air filter according to claim 2, characterized in that: The inner walls on the left and right sides of the inner frame (08) are provided with through holes for the filter plate (09) to penetrate into the inner frame (08).

4. The HVAC air filter according to claim 3, characterized in that: The front end of the tube head (02) is formed with slideways (06) on both upper and lower sides, and a baffle (07) capable of covering the air hole is in sliding contact between the two slideways (06).

5. The HVAC air filter according to claim 1, characterized in that: The outer wall of the inner frame (08) is in contact with the inner wall surface of the pipe head (02).

6. The HVAC air filter according to claim 4, characterized in that: The rear end of the pipe head (02) is detachably connected to the pipeline (01).

7. The HVAC air filter according to claim 6, characterized in that: The inner diameter of the pipeline (01) gradually increases from front to back.

8. The HVAC air filter according to claim 1, characterized in that: The side door (03) is provided with a handle.

9. The HVAC air filter according to claim 1, characterized in that: The inner frame (08) is made of transparent material.

10. The HVAC air filter according to claim 4, characterized in that: The baffle (07) is made of hard plastic.

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