An air inlet with automatic air volume adjustment

Abstract

The utility model discloses an air inlet of automatic regulation air volume, specifically related to air inlet technical field, including air inlet pipe, air inlet pipe one side inner wall fixedly be equipped with air inlet filter screen, and air inlet filter screen one side is equipped with dust cleaning subassembly, is used for dust cleaning to air inlet filter screen surface, avoids the blockage, and air inlet filter screen other side is equipped with adjusting assembly, is used for adjusting air volume, and dust cleaning subassembly includes rotary scraper, and rotary scraper is located air inlet filter screen one side, and rotary scraper is close to air inlet filter screen one side center fixedly equipped with the pivot, and rotary scraper is close to air inlet filter screen one side fixedly equipped with a plurality of brush, and the brush is contacted with air inlet filter screen surface. The utility model guarantees the air inlet air volume and air inlet quality, avoids the situation that the air inlet is blocked to happen, ensures electrical equipment can steady air intake to ensure that the pressure inside electrical equipment is always higher than the pressure of external environment, thereby prevents the combustible gas or dust to enter the equipment inside, avoids the potential explosion and so on safety hidden danger of causing.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air inlet, specifically relates to an air inlet of automatic regulation air volume. BACKGROUND

[0002] With the progress of modern society, the use of flammable and explosive electrical equipment in dangerous places leads to gradually increasing risk coefficient, and in order to minimize the occurrence of explosion accidents, it is necessary to maintain or transform the electrical equipment to meet the explosion-proof requirements, so as to ensure the safety during use. The air inlet of the explosion-proof electrical equipment refers to the opening part of the equipment for introducing air. When designing and transforming the explosion-proof electrical equipment, the design and installation of the air inlet are very important, because it is directly related to the explosion-proof performance and safe operation of the equipment. The air inlet of the explosion-proof electrical equipment needs to adjust the air volume to ensure that the pressure inside the equipment is always higher than that of the external environment, so as to prevent the combustible gas or dust from entering the equipment and causing potential safety hazards.

[0003] For example, the transformation of the air inlet of the explosion-proof electrical equipment can refer to the existing patent with the patent number CN208687953U, which is an air inlet structure convenient for adjusting air volume. It includes an air inlet connector, the outer surface of the air inlet connector is fixedly connected with a hook, the number of hooks is three, the hooks are fixedly connected on the outer surface of the air inlet connector in the form of annular array, the inner surface of the air inlet connector is fixedly connected with an annular table, one side of the annular table is fixedly connected with a fixed shaft, the outer surface of the two fixed shafts is movably connected with an air inlet vane through a shaft cylinder, one side of the air inlet vane is fixedly connected with a spring buckle cylinder, a spring buckle groove is formed in the inside of the spring buckle cylinder, a spring buckle fastener hole is formed in the front of the spring buckle cylinder, and a spring buckle is inserted into the spring buckle groove. The air inlet structure convenient for adjusting air volume can be conveniently hung on the wall through the setting of the hook, and the air inlet structure convenient for adjusting air volume can conveniently adjust the air volume of the air inlet through the cooperation of the spring buckle, the spring buckle fastener and the adjusting groove.

[0004] However, the above-mentioned device still has some deficiencies in actual use, such as that the dust in the air is easy to adhere to the air inlet for a long time, which may cause the air inlet to be blocked, and the air volume entering the electrical equipment is reduced, which cannot ensure that the pressure inside the equipment is always higher than that of the external environment, and combustible gas or dust may enter the equipment and cause potential explosion and other safety hazards. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides an air inlet of automatic regulation air volume to solve the problem that the air inlet of the electrical equipment is easy to be blocked and the electrical equipment has safety hazards.

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

[0007] A kind of air intake of automatic regulation air volume, including air inlet cylinder, air inlet filter screen is fixed on the inner wall of one side of the air inlet cylinder;

[0008] The air inlet filter screen side is equipped with dust cleaning assembly, for dust cleaning on the surface of air inlet filter screen, avoid blockage;

[0009] The other side of the air inlet filter screen is equipped with adjusting assembly, for adjusting air volume;

[0010] The dust cleaning assembly includes rotary scraper, rotary scraper is equipped on the side of air inlet filter screen, rotary scraper is fixed with rotating shaft near the center of one side of air inlet filter screen, rotating shaft penetrates air inlet filter screen and is connected with air inlet filter screen by bearing, rotary scraper is fixed with a plurality of brushes near the center of one side of air inlet filter screen, and the brush is in contact with the surface of air inlet filter screen.

[0011] Further, the rotating shaft is fixed with fixed block at one end, and the fixed block is fixed on the center of the side of rotary scraper away from air inlet filter screen, to limit the position of rotary scraper, the rotating shaft is connected with fixed cylinder at the end away from rotary scraper by bearing, and the fixed cylinder is fixed with micro motor inside, the output shaft of micro motor penetrates fixed cylinder and is fixedly connected with the end of rotating shaft away from rotary scraper, to drive rotary scraper to rotate by rotating shaft.

[0012] Further, the adjusting assembly includes air inlet plate, the air inlet plate is equipped on the side of air inlet filter screen away from rotary scraper and is fixed on the inner wall of air inlet cylinder, the side of air inlet plate away from air inlet filter screen is equipped with limit plate, and rotating shaft penetrates air inlet plate and limit plate and is connected with limit plate by bearing, to drive limit plate to rotate by rotating shaft.

[0013] Further, a plurality of air inlets are evenly distributed on the air inlet plate and the limit plate, and the air inlet plate and the limit plate are closely attached to each other, to drive the limit plate to rotate, so that the limit plate is staggered with the air inlet plate, and the air volume is adjusted by a plurality of staggered air inlets.

[0014] Further, two filter frames are fixed on the inner wall of the side of the air inlet cylinder away from the air inlet filter screen, and the same felt plate is fixed between the two filter frames, and the two filter frames are arranged on the side of the limit plate away from the air inlet filter screen, so that the felt plate can filter the air entering the air inlet cylinder again, and fine dust can be adhered to the felt plate.

[0015] Further, the same fixed rod is fixed between the front and rear sides of the filter frame on the side away from the air inlet filter screen, and the fixed cylinder is fixed on the center of one side of the fixed rod, to support the fixed cylinder.

[0016] The utility model has the following advantages:

[0017] 1. The utility model discloses a cooperation of air inlet filter screen, scraper, brush and felt board, guarantees the air intake of air inlet and air intake quality, avoids the situation that the air inlet is blocked, ensures that electrical equipment can take in air steadily to ensure that the pressure inside electrical equipment is always higher than the pressure of external environment, thereby preventing combustible gas or dust from entering the inside of equipment, avoiding potential explosion and other security risks;

[0018] 2. The utility model discloses a rotation of limiting board is driven by the pivot, and the rotation of limiting board makes the air inlet on it and the air inlet on air inlet board interlaced, and the air filtered by air inlet filter screen finally is circulated through the interlaced air inlet, thereby reaching the purpose of controlling the air intake, and improving the use effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be obtained without creative labor on the basis of the provided drawings.

[0020] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions that the utility model can be implemented, so they do not have the substantial meaning of technology, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that the utility model can produce, should still fall within the scope of the technical content disclosed by the utility model.

[0021] Figure 1 The overall structure schematic view provided by the utility model is shown in the figure;

[0022] Figure 2 The overall structure rear view provided by the utility model is shown in the figure;

[0023] Figure 3 The overall structure cross-sectional view provided by the utility model is shown in the figure;

[0024] Figure 4 The overall structure cross-sectional view provided by the utility model is shown in the figure;

[0025] Figure 5 The overall structure cross-sectional view provided by the utility model is shown in the figure;

[0026] Figure 6 The adjustment assembly and ash removal assembly structure separation schematic view provided by the utility model is shown in the figure;

[0027] Fig. 1 air inlet cylinder, 2 dust cleaning assembly, 3 air inlet filter screen, 4 fixed rod, 5 fixed cylinder, 6 filter frame, 7 felt plate, 8 adjusting assembly;

[0028] 21 rotating scraper, 22 brush, 23 fixed block, 24 rotating shaft, 25 micro motor, 81 air inlet plate, 82 limiting plate, 83 air inlet. DETAILED DESCRIPTION

[0029] The embodiments of the present application will be described in detail by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification. Obviously, the described embodiments are part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0030] As shown in Figures 1-6 The technical scheme provided by the present application is: an air inlet with automatic air volume adjustment, comprising an air inlet cylinder 1 installed on an electrical equipment, an air inlet filter screen 3 fixed on one side of the inner wall of the air inlet cylinder 1, two filter frames 6 fixed on the inner wall of the side of the air inlet cylinder 1 away from the air inlet filter screen 3, one felt plate 7 fixed between the two filter frames 6, and one fixed rod 4 fixed between the two filter frames 6 on the side away from the air inlet filter screen 3.

[0031] As shown in Figures 3-6 The air inlet filter screen 3 is provided with a dust cleaning assembly 2 on one side, which is used to clean the surface of the air inlet filter screen 3 to avoid blockage. The dust cleaning assembly 2 comprises a rotating scraper 21 arranged on one side of the air inlet filter screen 3. A rotating shaft 24 is fixed on one side of the rotating scraper 21 close to the center of the air inlet filter screen 3. The rotating shaft 24 penetrates the air inlet filter screen 3 and is connected with the air inlet filter screen 3 through a bearing. A plurality of brushes 22 are fixed on one side of the rotating scraper 21 close to the air inlet filter screen 3. The brushes 22 are in contact with the surface of the air inlet filter screen 3, which facilitates the rotation of the brushes 22 to scrape off the dust adhered to the surface of the air inlet filter screen 3.

[0032] One end of the rotating shaft 24 is fixedly provided with a fixed block 23, and the fixed block 23 is fixedly arranged on the side of the rotating scraper 21 away from the center of the air inlet filter screen 3, which facilitates the limiting of the position of the rotating scraper 21. The end of the rotating shaft 24 away from the rotating scraper 21 is connected with a fixed cylinder 5 through a bearing, and the fixed cylinder 5 is fixedly provided with a micro motor 25 inside. The output shaft of the micro motor 25 penetrates the fixed cylinder 5 and is fixedly connected with the end of the rotating shaft 24 away from the rotating scraper 21, which facilitates the rotation of the rotating scraper 21 driven by the rotating shaft 24. The fixed cylinder 5 is fixedly arranged on one side of the fixed rod 4, which facilitates the support of the fixed cylinder 5.

[0033] By setting the dust cleaning assembly 2, in the process of air inlet of the air inlet cylinder 1, the micro motor 25 rotates while driving the rotating scraper 21 to rotate, the rotating scraper 21 drives the several brushes 22 close to the air inlet filter screen 3 side to rotate, the several brushes 22 rotate to scrape the dust adhered to the surface of the air inlet filter screen 3, thereby avoiding the dust blockage caused by long time ventilation and filtration of the air inlet filter screen 3, ensuring the air inlet effect, and the felt plate 7 fixed between the two filter frames 6 can absorb the fine dust inside the air inlet cylinder 1, improving the air inlet quality, ensuring that the electrical equipment can smoothly inhale air to ensure that the pressure inside the electrical equipment is always higher than the pressure of the external environment, thereby preventing the combustible gas or dust from entering the equipment interior, avoiding potential explosion and other safety hazards.

[0034] As shown in Figures 3-6 The other side of the air inlet filter screen 3 is provided with an adjusting assembly 8 for adjusting the air volume, the adjusting assembly 8 comprises an air inlet plate 81, the air inlet plate 81 is arranged on the side of the air inlet filter screen 3 away from the rotating scraper 21 and is fixed on the inner wall of the air inlet cylinder 1, the air inlet plate 81 is provided with a limiting plate 82 away from the air inlet filter screen 3, and the rotating shaft 24 penetrates the air inlet plate 81 and the limiting plate 82 and is connected with the limiting plate 82 through a bearing, facilitating the rotating shaft 24 to drive the limiting plate 82 to rotate.

[0035] The air inlet plate 81 and the limiting plate 82 are provided with a plurality of uniformly distributed air inlets 83, and the air inlet plate 81 and the limiting plate 82 are closely attached to each other, facilitating the limiting plate 82 to rotate, so that the limiting plate 82 is staggered with the air inlet plate 81, the air volume is adjusted through the plurality of staggered air inlets 83, and the two filter frames 6 are arranged on the side of the limiting plate 82 away from the air inlet filter screen 3, facilitating the felt plate 7 to perform secondary filtration on the air entering the air inlet cylinder 1, so that the fine dust is adhered to the felt plate 7.

[0036] By setting the adjusting assembly 8, the air volume is concentrated to the inside of the air inlet cylinder 1 through the side of the air inlet filter screen 3, when the air volume needs to be adjusted, the micro motor 25 inside the fixed cylinder 5 is controlled to work, the micro motor 25 drives the rotating shaft 24 to rotate, and drives the limiting plate 82 to rotate at the same time, since the air inlet plate 81 is fixedly connected with the inner wall of the air inlet cylinder 1, so that the plurality of air inlets 83 on the limiting plate 82 are staggered with the plurality of air inlets 83 on the air inlet plate 81, and finally the air filtered through the air inlet filter screen 3 is circulated through the plurality of staggered air inlets 83, thereby achieving the purpose of controlling the air inlet volume, and improving the use effect.

[0037] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model, all belong to the scope of protection required by the utility model.

Claims

1. An air intake with automatic air volume adjustment, comprising an air inlet duct (1), characterized in that: The inner wall of one side of the air inlet cylinder (1) is fixedly provided with an air inlet filter screen (3); The air inlet filter screen (3) is provided with a dust cleaning assembly (2) on one side, which is used for cleaning the surface of the air inlet filter screen (3) to avoid blockage. The other side of the air inlet filter screen (3) is provided with an adjusting assembly (8) for adjusting the air volume. The dust cleaning assembly (2) comprises a rotating scraper (21), which is arranged on one side of the air inlet filter screen (3). The rotating scraper (21) is fixedly provided with a rotating shaft (24) near the center of one side of the air inlet filter screen (3). The rotating shaft (24) penetrates the air inlet filter screen (3) and is connected with the air inlet filter screen (3) through a bearing. A plurality of brushes (22) are fixedly arranged on the rotating scraper (21) near one side of the air inlet filter screen (3), and the brushes (22) are in contact with the surface of the air inlet filter screen (3).

2. An air inlet according to claim 1, wherein: One end of the rotating shaft (24) is fixedly provided with a fixed block (23), and the fixed block (23) is fixedly arranged at the center of the side of the rotating scraper (21) away from the air inlet filter screen (3). The end of the rotating shaft (24) away from the rotating scraper (21) is connected with a fixed cylinder (5) through a bearing, and a micro motor (25) is fixedly arranged in the fixed cylinder (5). The output shaft of the micro motor (25) penetrates the fixed cylinder (5) and is fixedly connected with the end of the rotating shaft (24) away from the rotating scraper (21).

3. An air inlet for automatically regulating the air volume according to claim 2, characterized in that: The adjusting assembly (8) comprises an air inlet plate (81), which is arranged on the side of the air inlet filter screen (3) away from the rotating scraper (21) and is fixedly arranged on the inner wall of the air inlet cylinder (1). The side of the air inlet plate (81) away from the air inlet filter screen (3) is provided with a limiting plate (82), and the rotating shaft (24) penetrates the air inlet plate (81) and the limiting plate (82) and is connected with the limiting plate (82) through a bearing.

4. An air inlet according to claim 3, wherein: A plurality of air inlets (83) are evenly arranged on the air inlet plate (81) and the limiting plate (82), and the air inlet plate (81) and the limiting plate (82) are tightly attached to each other.

5. An air volume automatically adjusting air inlet according to claim 3, characterized in that: Two filter frames (6) are fixedly arranged on the inner wall of the side of the air inlet cylinder (1) away from the air inlet filter screen (3), and a same felt plate (7) is fixedly arranged between the two filter frames (6). The two filter frames (6) are arranged on the side of the limiting plate (82) away from the air inlet filter screen (3).

6. An air volume automatically adjusting air inlet according to claim 5, characterized in that: A same fixed rod (4) is fixedly arranged between the front and rear sides of the filter frame (6) on the side away from the air inlet filter screen (3). The fixed cylinder (5) is fixedly arranged at the center of one side of the fixed rod (4).

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