Dustproof device for air purification equipment

Abstract

The utility model provides a dustproof device for air purification equipment. The dustproof device comprises a dustproof top cover, a filtering structure, an air inlet structure, a sealing structure, two elastic anti-loosening mechanisms, four detachable connecting structures and four mounting structures, the dustproof top cover is of a rectangular structure, a baffle is arranged at the edge of the outer side of the dustproof top cover, and the four installation structures are evenly distributed at the top point of the dustproof top cover and used for being connected with a shell of the air purification equipment. The air inlet structure is arranged in the middle of the dustproof top cover. According to the dustproof device for the air purification equipment, the problem that a filter screen of the dustproof device is difficult to replace and thoroughly clean due to the fact that the dustproof device of the air purification equipment in the related technology is in a non-detachable design is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air purification technical field especially is related to a dustproof device for air purification equipment. BACKGROUND

[0002] Air purification equipment is the device that removes the pollutant in air through physics or chemistry, promotes indoor air quality. Mainly aiming at particulate matter, such as PM2.5, dust, pollen, pet dander etc. Or gaseous pollutant, such as formaldehyde, benzene, peculiar smell, oil smoke etc. Air purification equipment dustproof device mainly plays the function of primary filtration, is used to intercept big particle pollutant, such as dust, hair, fiber etc., protects subsequent high efficiency filter screen (such as HEPA) not to be blocked, prolongs the life of equipment. The filter screen of dustproof device is prone to dust accumulation after long time use, and the ventilation resistance increases, the purification efficiency reduces and the noise rises. Since the dustproof device of air purification equipment in the related art is non-detachable design, the filter screen of dustproof device has the problems of difficult replacement and thorough cleaning. SUMMARY

[0003] Therefore, the utility model aims at at least one of the related technical problems to some extent.

[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0005] A dustproof device for air purification equipment, comprising a dustproof top cover, a filter structure, an air inlet structure, a sealing structure, two elastic anti-loose mechanisms, four detachable connecting structures and four mounting structures.

[0006] The dustproof top cover is of rectangular structure, the dustproof top cover outer side edge position is equipped with a baffle, four mounting structures are evenly distributed at the apex position of the dustproof top cover, and the mounting structure is used for connecting the shell of air purification equipment.

[0007] The air inlet structure is arranged in the middle of the dustproof top cover.

[0008] The lower end surface of the dustproof top cover is matched with the filter structure through the sealing structure, the filter structure is opposite to the air inlet structure, and the filter structure is connected with the lower end surface of the dustproof top cover through four detachable connecting structures.

[0009] Two elastic anti-loose mechanisms are symmetrically arranged on the dustproof top cover, and the pressing end of the elastic anti-loose mechanism is used for pressing the filter structure.

[0010] Further, the filter structure comprises a filter screen and a fixing plate, the filter screen is a cylindrical structure, an annular bent edge is arranged on the top end surface outside of the filter screen, a circular notch is arranged in the middle of the fixing plate, the filter screen is arranged in the circular notch, the annular bent edge is detachably connected with the fixing plate, four detachable connecting structures are evenly distributed on the fixing plate, and the sealing structure is matched with the outer wall of the filter screen.

[0011] Further, the sealing structure comprises an annular sealing plate and a sealing gasket, the annular sealing plate is arranged on the lower end surface of the dustproof top cover, the air inlet structure is arranged on the inner side of the annular sealing plate, the section of the annular sealing plate is L-shaped, the sealing gasket is arranged on the inner side of the opening of the annular sealing plate, the inner side of the annular sealing plate is provided with a stepped surface, the stepped surface can be matched with the outer edge of the lower end surface of the filter screen, and the sealing gasket is used for sealing the gap between the annular sealing plate and the filter screen.

[0012] Further, the detachable connecting structure comprises a fixing sleeve and a glass bead connecting structure, the fixing sleeve is arranged on the lower end surface of the dustproof top cover, and the glass bead connecting structure is arranged on the fixing plate.

[0013] Further, the detachable connecting structure comprises a fixing sleeve and a glass bead connecting structure, the fixing sleeve is arranged on the lower end surface of the dustproof top cover, and the glass bead connecting structure is arranged on the fixing plate.

[0014] Further, the elastic anti-loosening mechanism comprises a moving base, a top rod, a limiting block, a locking screw, a pressing block and a compression spring, the moving base is an L-shaped structure, the bottom of the moving base is in sliding fit with the top rod, the top of the top rod is provided with the pressing block, the bottom of the top rod is provided with the limiting block, the compression spring is sleeved on the top rod and located between the bottom of the moving base and the pressing block, the bottom of the locking screw is in rotary fit with the upper end surface of the moving base, the locking screw is in threaded fit with the dustproof top cover, and the pressing block is used for pressing the fixing plate.

[0015] Further, the mounting structure comprises a connecting screw, a bearing assembly and a knob, the connecting screw is connected with the dustproof top cover through the bearing assembly, and the knob is arranged on the top of the connecting screw.

[0016] Further, the lower end surface of the baffle is provided with a sealing strip.

[0017] Compared with the prior art, the dustproof device for the air purification equipment has the following advantages:

[0018] 1. The detachable connection structure utilizes a "press-lock" mechanism with glass bead clips or elastic clips, allowing users to disassemble the filter structure by hand without tools, simplifying the cleaning or filter replacement process. If the filter is partially damaged, it can be disassembled and replaced individually, eliminating the need to discard the entire device and reducing maintenance costs. Four detachable connection structures are evenly distributed on the mounting plate, creating symmetrical force distribution and preventing filter displacement due to airflow impact or vibration.

[0019] 2. The sealing structure ensures complete airflow through the filter and prevents leakage of unpurified air. This significantly improves the purification efficiency and reliability of the device. The sealing structure features a dual sealing mechanism: the L-shaped cross-section of the annular sealing plate fits tightly against the outer wall of the filter, using a stepped surface to limit and block most of the air bypass. A sealing gasket (usually silicone or EPDM) fills the tiny gap between the annular sealing plate and the filter, accommodating manufacturing tolerances or deformations.

[0020] 3. The elastic anti-loosening mechanism ensures the long-term stable operation of the filter structure. Through elastic pressure compensation and a dynamic locking mechanism, it effectively copes with vibration conditions, improving equipment reliability and ease of maintenance. The compression spring, through preload, constantly pushes the pressure block downwards, maintaining uniform pressure on the fixing plate even if the filter screen experiences slight displacement due to airflow impact or vibration, preventing loosening. The two elastic anti-loosening mechanisms are symmetrically arranged on the left and right sides, ensuring uniform pressure from the pressure block on the fixing plate and avoiding filter screen tearing or gasket misalignment caused by stress concentration on one side. The L-shaped movable base enhances structural rigidity, distributing the clamping force to the support point of the dustproof top cover and reducing the risk of localized deformation. Attached Figure Description

[0021] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0022] Figure 1 This is a schematic diagram of a dustproof device for an air purification equipment according to an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the filter structure described in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the elastic anti-loosening mechanism described in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the sealing structure described in an embodiment of the present utility model;

[0026] Figure 5 This is a cross-sectional view of the sealing structure and filter structure described in an embodiment of the present utility model.

[0027] Explanation of reference signs:

[0028] 100, dustproof top cover; 110, sealing strip; 210, bearing assembly; 220, knob; 230, connecting screw; 300, air inlet structure; 400, locking screw; 510, moving base; 520, ejector rod; 530, compression spring; 540, limiting block; 600, fixed plate; 700, filtering structure; 710, filter screen; 720, annular bent edge; 800, annular sealing plate; 910, fixed sleeve; 920, glass bead connecting structure. DETAILED DESCRIPTION

[0029] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0030] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0031] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0033] A dustproof device for air purification equipment, such as Figure 1As shown, including dustproof cover 100, filter structure 700, air inlet structure 300, sealing structure, two elastic anti-loose mechanisms, four detachable connection structures and four mounting structures; dustproof cover 100 is a rectangular structure, the outer edge of dustproof cover 100 is provided with a baffle, four mounting structures are evenly distributed at the vertex position of dustproof cover 100, and the mounting structure is used for connecting the shell of the air purification equipment; air inlet structure 300 is arranged in the middle of dustproof cover 100; the lower end surface of the baffle is provided with a sealing strip 110. The mounting structure comprises a connecting screw 230, a bearing assembly 210 and a knob 220, the connecting screw 230 is connected with the dustproof cover 100 through the bearing assembly 210, and the knob 220 is arranged at the top of the connecting screw 230.

[0034] The lower end surface of dustproof cover 100 is matched with filter structure 700 through sealing structure, filter structure 700 is opposite to air inlet structure 300, and filter structure 700 is connected with the lower end surface of dustproof cover 100 through four detachable connection structures; two elastic anti-loose mechanisms are symmetrically arranged on dustproof cover 100, and the pressing end of the elastic anti-loose mechanism is used for pressing filter structure 700.

[0035] Filter structure 700 comprises a filter screen 710 and a fixed plate 600, the filter screen 710 is a cylindrical structure, the outer side of the top end surface of the filter screen 710 is provided with an annular bent edge 720, the middle of the fixed plate 600 is provided with a circular notch, the filter screen 710 is arranged in the circular notch, the annular bent edge 720 is detachably connected with the fixed plate 600, four detachable connection structures are evenly distributed on the fixed plate 600, and the sealing structure is matched with the outer wall of the filter screen 710.

[0036] The sealing structure comprises an annular sealing plate 800 and a sealing gasket, the annular sealing plate 800 is arranged at the lower end surface of dustproof cover 100, the air inlet structure 300 is arranged at the inner side of the annular sealing plate 800, the section of the annular sealing plate 800 is L-shaped, the sealing gasket is arranged at the inner side of the opening of the annular sealing plate 800, the inner side of the annular sealing plate 800 is provided with a stepped surface, the stepped surface can be matched with the outer edge of the lower end surface of the filter screen 710, and the sealing gasket is used for sealing the gap between the annular sealing plate 800 and the filter screen 710. The sealing structure is a structure for ensuring that the airflow passes through the filter screen 710 completely and preventing uncleaned air from leaking. The purification efficiency and reliability of the device are significantly improved. The sealing structure has a double sealing mechanism, wherein the L-shaped section of the annular sealing plate 800 is closely combined with the outer wall of the filter screen 710, a stepped surface is used for limiting and blocking most of the air bypassing. The sealing gasket (usually made of silicone or EPDM material) fills the small gap between the annular sealing plate 800 and the filter screen 710, and adapts to the manufacturing tolerance or deformation.

[0037] The detachable connection structure includes a fixing sleeve 910 and a glass bead connection structure 920, the fixing sleeve 910 is arranged on the lower end surface of the dustproof top cover 100, the glass bead connection structure 920 is arranged on the fixing plate 600, and the fixing sleeve 910 is detachably connected with the glass bead connection structure 920. The glass bead connection structure 920 is existing. The detachable connection structure is provided with a "pressing-locking" mechanism of a glass bead buckle or an elastic buckle, so that the user can detach the filter structure 700 manually without tools, and the operation process of cleaning or replacing the filter screen is simplified. If the filter screen 710 is partially damaged, the filter screen can be individually detached and replaced, and the entire device does not need to be discarded, thereby reducing the maintenance cost. The four detachable connection structures are uniformly distributed on the fixing plate 600, and symmetrical stress is formed to prevent the filter screen from being displaced due to airflow impact or vibration.

[0038] The elastic anti-loosening mechanism includes a moving base 510, a top rod 520, a limiting block 540, a locking screw 400, a pressing block and a compression spring 530, the moving base 510 is in an L-shaped structure, the bottom of the moving base 510 is in sliding fit with the top rod 520, the top of the top rod 520 is provided with the pressing block, the bottom of the top rod 520 is provided with the limiting block 540, the compression spring 530 is sleeved on the top rod 520, the compression spring 530 is located between the bottom of the moving base 510 and the pressing block, and the bottom of the locking screw 400 is in rotation with the upper end surface of the moving base 510. The elastic anti-loosening mechanism is a mechanism for ensuring long-term stable operation of the filter structure 700. Through elastic pressure compensation and dynamic locking mechanism, the elastic anti-loosening mechanism effectively deals with the vibration working condition, and improves the reliability and maintenance convenience of the equipment. The compression spring 530 always pushes the pressing block downward through the pre-tightening force, so that even if the filter screen 710 is slightly displaced due to airflow impact or vibration, the filter screen can still be uniformly pressed against the fixing plate 600, and loosening is prevented. The two elastic anti-loosening mechanisms are symmetrically arranged, so that the pressure of the pressing blocks on the fixing plate 600 is uniform, and tearing of the filter screen or deviation of the sealing gasket caused by unilateral stress concentration is avoided. The L-shaped moving base 510 can enhance the structural rigidity, disperse the pressing force to the supporting points of the dustproof top cover 100, and reduce the risk of local deformation.

[0039] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A dust prevention device for an air cleaning apparatus, characterized by: It includes dustproof top cover (100), filter structure (700), air inlet structure (300), sealing structure, two elastic anti-loose mechanisms, four detachable connection structures and four mounting structures; The dustproof top cover (100) is in rectangular structure, the outer edge of the dustproof top cover (100) is provided with a baffle, and the four mounting structures are evenly distributed at the vertex positions of the dustproof top cover (100), and the mounting structures are used for connecting the shell of the air purification equipment. The air inlet structure (300) is arranged in the middle of the dustproof top cover (100). The lower end surface of the dustproof top cover (100) is matched with the filter structure (700) through the sealing structure, the filter structure (700) is opposite to the air inlet structure (300), and the filter structure (700) is connected with the lower end surface of the dustproof top cover (100) through the four detachable connection structures. The two elastic anti-loose mechanisms are symmetrically arranged on the dustproof top cover (100), and the compression end of the elastic anti-loose mechanism is used for compressing the filter structure (700).

2. The dust prevention device for an air cleaning apparatus according to claim 1, characterized by: The filter structure (700) comprises a filter screen (710) and a fixed plate (600), the filter screen (710) is in cylindrical structure, the outer side of the top end surface of the filter screen (710) is provided with an annular bent edge (720), the middle of the fixed plate (600) is provided with a circular notch, the filter screen (710) is arranged in the circular notch, the annular bent edge (720) is detachably connected with the fixed plate (600), four detachable connection structures are evenly distributed on the fixed plate (600), and the sealing structure is matched with the outer wall of the filter screen (710).

3. The dust prevention device for an air cleaning apparatus according to claim 2, wherein: The sealing structure comprises an annular sealing plate (800) and a sealing gasket, the annular sealing plate (800) is arranged on the lower end surface of the dustproof top cover (100), the air inlet structure (300) is arranged on the inner side of the annular sealing plate (800), the section of the annular sealing plate (800) is L-shaped, the sealing gasket is arranged on the inner side of the opening of the annular sealing plate (800), the inner side of the annular sealing plate (800) is provided with a stepped surface, the stepped surface can be matched with the outer edge of the lower end surface of the filter screen (710), and the sealing gasket is used for sealing the gap between the annular sealing plate (800) and the filter screen (710).

4. The dust prevention device for an air cleaning apparatus according to claim 2, wherein: The detachable connection structure comprises a fixed sleeve (910) and a glass bead connection structure (920), the fixed sleeve (910) is arranged on the lower end surface of the dustproof top cover (100), and the glass bead connection structure (920) is arranged on the fixed plate (600).

5. The dust prevention device for an air cleaning apparatus according to claim 2, wherein: The detachable connection structure comprises a fixed protrusion and an elastic fixed buckle, the fixed protrusion is arranged on the lower end surface of the dustproof top cover (100), the elastic fixed buckle is arranged on the fixed plate (600), and the fixed protrusion is detachably connected with the elastic fixed buckle.

6. A dust protection device for an air purification apparatus according to any one of claims 2 to 5, characterized in that: The elastic anti-loose mechanism comprises a moving base (510), a top rod (520), a limiting block (540), a locking screw (400), a pressing block and a compression spring (530), the moving base (510) is of L-shaped structure, the bottom of the moving base (510) is in sliding fit with the top rod (520), the top of the top rod (520) is provided with the pressing block, the bottom of the top rod (520) is provided with the limiting block (540), the compression spring (530) is sleeved on the top rod (520), the compression spring (530) is located between the bottom of the moving base (510) and the pressing block, the bottom of the locking screw (400) is in rotary fit with the upper end surface of the moving base (510), the locking screw (400) is in threaded fit with the dustproof top cover (100), and the pressing block is used for pressing the fixing plate (600).

7. The dust prevention device for an air cleaning apparatus according to claim 6, wherein: The mounting structure comprises a connecting screw (230), a bearing assembly (210) and a knob (220), the connecting screw (230) is connected with the dustproof top cover (100) through the bearing assembly (210), and the knob (220) is arranged at the top of the connecting screw (230).

8. The dust prevention device for an air cleaning apparatus according to claim 7, wherein: The lower end surface of the baffle is provided with a sealing strip (110).

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