A combined air cleaner

Abstract

The utility model discloses a combined air filter relates to air filter technology field, including the organism, one side fixed connection of the organism has the air pipe, the bottom fixed mounting of the organism has the oil filter. The utility model discloses a combined air filter, through the effect of primary filter structure, significantly improves the filtering efficiency and durability, and the fan high -speed rotation of six piece end is the wavy arc surface, and the cyclone plate produces the powerful centrifugal airflow, and the high -efficient separation is thrown out small particle dust to the dust outlet of upper cover side wall, and the dust removal capacity is far more than traditional design, and the filter plate located in the air inlet path then intercepts the large particle impurity in advance, effectively prevents its abrasion high -speed rotating fan blade and cavity, greatly prolongs the core component life, and the bolt -free design of interlocking of sliding card slot and bottom clamping block between upper cover and shell, combining the filter plate of magnetic attraction fixed, makes whole dismounting and cleaning extremely convenient, and the maintenance difficulty and time cost are reduced greatly.

Description

Technical Field

[0001] This utility model relates to the field of air filtration technology, and in particular to a combined air filter. Background Technology

[0002] A combination air filter is a multi-component device used to filter impurities such as dust, pollen, and particulate matter from the air. Its main function is to prevent pollutants from entering a specific system or space, thereby protecting equipment, improving air quality, or ensuring health. It is widely used in engine intake systems to prevent dust from wearing down internal precision components.

[0003] The existing combined air filter has a four-blade structure with no curvature, resulting in weak airflow and exhaust capacity, limited dust removal ability, and relatively simple filtration of particulate matter such as dust. It cannot differentiate or classify the filtration, which leads to large solid particles scratching and wearing down the blades and top cover under the action of high-speed swirling airflow, thus shortening the service life of the combined air filter.

[0004] Therefore, a combined air filter is proposed to address the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, the existing combined air filters have a four-blade structure with no curvature, resulting in weak airflow and exhaust capacity, limited dust removal capabilities, and relatively simple filtration of particulate matter such as dust. This lack of differentiation and grading leads to large solid particles being scratched and worn by the high-speed swirling airflow, which in turn shortens the service life of the combined air filter. Therefore, a combined air filter is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a combined air filter, including a body, an air outlet pipe fixedly connected to one side of the body, an oil filter fixedly installed at the bottom of the body, and a pre-filter structure and a dust removal structure fixedly installed at the top of the body. The pre-filter structure includes a shell and a top cover. The bottom of the shell is snapped into the top of the body. A swirl plate is fixedly connected inside the shell. A fan is rotatably connected to the middle of the shell. The fan is located above the swirl plate. The fan has six blades, and the ends of the blades are all wavy arc plates.

[0007] Preferably, a metal ring is fitted on the outer wall of the housing, and a filter plate is fixedly connected to the inner wall of the metal ring. The inner wall of the filter plate is fitted with the outer wall inside the housing, and the filter plate is located below the cyclone plate.

[0008] Preferably, a dust collection frame is fixedly connected to the bottom end of the filter plate, and the bottom end of the dust collection frame overlaps with the top end of the machine body.

[0009] Preferably, a magnetic ring is fixedly connected to the outer wall of the housing, and the magnetic ring is magnetically connected to the metal ring.

[0010] Preferably, a first locking block is fixedly connected to the bottom end of the top cover, a locking groove is provided at the edge of the housing, the inner wall of the locking groove is slidably connected to the outer wall of the first locking block, and a second locking block is fixedly connected to the edge of the bottom end of the housing, the outer wall of the second locking block is engaged with the bottom end of the first locking block.

[0011] Preferably, the outer wall of the top cover has a dust outlet that penetrates the top cover.

[0012] Preferably, the dust removal structure includes a rectangular frame, the inner wall of which is the same size as the dust outlet and is positioned close to it, and a filter bag is fixedly connected to the side of the rectangular frame away from the dust outlet.

[0013] Preferably, a plug is fixedly connected to the top of the rectangular frame, a slot is provided at the top of the top of the cover, the inner wall of the slot is inserted into the outer wall of the plug, an installation groove is provided at the bottom of the top cover, an installation block is fixedly connected to the bottom of the rectangular frame, the inner wall of the installation groove is inserted into the installation block, an elastic telescopic rod is installed inside the installation block, a locking block is fixedly connected to the output end of the elastic telescopic rod, and a locking hole penetrating the installation groove is provided on the outer wall of the top cover, the inner wall of the locking hole is inserted into the outer wall of the locking block.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides a combined air filter. Through the function of the pre-filter structure, the filtration efficiency and durability are significantly improved. Its six-bladed fan with wavy arc ends rotates at high speed, and together with the cyclone plate, it generates a strong centrifugal airflow, which efficiently separates and throws small dust particles to the dust outlet on the side wall of the top cover. The dust removal capacity far exceeds that of traditional designs. The filter plate located in the air inlet path intercepts large impurities in advance, effectively preventing them from wearing the high-speed rotating fan blades and cavity, and greatly extending the life of the core components. The top cover and the housing adopt a boltless design with sliding slots and bottom locking blocks, combined with magnetically fixed filter plates, making the overall disassembly and cleaning extremely convenient, greatly reducing the maintenance difficulty and time cost.

[0016] 2. This utility model provides a combined air filter that solves the problem of secondary pollution from dust discharge and simplifies maintenance through the dust removal structure. Its rectangular frame fits tightly against the dust outlet of the pre-filter cover and, together with the connected filter bag, can completely intercept the strongly discharged dust, effectively preventing the dust from being re-entrained by the airflow and flowing back to the air inlet or polluting the environment, thus significantly improving the final air quality. The rectangular frame is positioned by the top insert and slot, and the bottom mounting block is embedded in the mounting groove. The built-in elastic telescopic rod automatically locks the locking block to achieve a firm seal. The one-button quick-release design makes cleaning and replacing the filter bag tool-free, and the operation is extremely simple and quick, ensuring continuous and effective dust removal function and reducing the burden of long-term maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the shell structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the filter plate structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the upper cover structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the card slot structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the filter bag structure of this utility model;

[0023] Figure 7 This utility model Figure 4 Enlarged view of point A in the image;

[0024] Figure 8 This utility model Figure 6 Enlarged view of point B in the image.

[0025] In the diagram: 1. Body; 2. Air outlet pipe; 3. Oil filter; 4. Pre-filter structure; 41. Shell; 42. Fan; 43. Top cover; 44. Dust outlet; 45. Locking block two; 46. Cyclone plate; 47. Metal ring; 48. Filter plate; 49. Dust collection frame; 410. Magnetic ring; 411. Locking block one; 412. Locking slot; 5. Dust removal structure; 51. Rectangular frame; 52. Filter bag; 53. Insert block; 54. Slot; 55. Mounting block; 56. Elastic telescopic rod; 57. Locking block; 58. Mounting groove; 59. Locking hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Specific implementation examples are given below.

[0028] Please see Figure 1 - Figure 8 This utility model provides a technical solution: a combined air filter, including a body 1, an air outlet pipe 2 fixedly connected to one side of the body 1, an oil filter 3 fixedly installed at the bottom of the body 1, and a pre-filter structure 4 and a dust removal structure 5 fixedly installed at the top of the body 1. The pre-filter structure 4 includes a housing 41 and a top cover 43. The bottom of the housing 41 is snapped into the top of the body 1. A swirl plate 46 is fixedly connected inside the housing 41. A fan 42 is rotatably connected to the middle of the housing 41. The fan 42 is located above the swirl plate 46. The fan 42 has six blades, and the ends of the blades are all wavy arc plates. By setting six blades of the fan 42 with wavy arc plates at the ends, the centrifugal force of the air swirl is significantly enhanced, effectively improving the separation efficiency and strong exhaust capacity of small dust particles. This solves the problem of weak dust removal capacity of the traditional four-blade straight plate fan 42. At the same time, the wavy arc plate design optimizes the airflow dynamics performance and reduces energy consumption and noise.

[0029] like Figure 3 As shown, a metal ring 47 is fitted on the outer wall of the housing 41, and a filter plate 48 is fixedly connected to the inner wall of the metal ring 47. The inner wall of the filter plate 48 is fitted with the outer wall inside the housing 41. The filter plate 48 is located below the swirl plate 46. By fitting a metal ring 47 with a filter plate 48 on the outer wall of the housing 41 and setting the filter plate 48 below the swirl plate 46, pretreatment of large particles after air enters is achieved, effectively intercepting large solid particles that may wear down the high-speed rotating fan 42 and the top cover, and significantly extending the service life of the core components.

[0030] like Figure 3 As shown, a dust collection frame 49 is fixedly connected to the bottom end of the filter plate 48. The bottom end of the dust collection frame 49 overlaps with the top end of the body 1. The dust collection frame 49 can collect the particles intercepted by the filter plate 48 for easy subsequent cleaning.

[0031] like Figure 3As shown, a magnetic ring 410 is fixedly connected to the outer wall of the housing 41. The magnetic ring 410 is magnetically connected to the metal ring 47. By utilizing the magnetic connection between the magnetic ring 410 and the metal ring 47 on the outer wall of the housing 41, the metal ring 47 that carries the filter plate 48 can be quickly and tool-free disassembled and assembled. This makes it extremely convenient to clean or replace the filter plate 48, which serves as a pre-filter, and greatly reduces the difficulty and time cost of daily maintenance.

[0032] like Figure 2 , Figure 4 and Figure 5 As shown, a locking block 411 is fixedly connected to the bottom end of the upper cover 43, and a locking groove 412 is provided at the edge of the housing 41. The inner wall of the locking groove 412 is slidably connected to the outer wall of the locking block 411. A locking block 45 is fixedly connected to the edge of the bottom end of the housing 41, and the outer wall of the locking block 45 is engaged with the bottom end of the locking block 411. Through the sliding connection between the locking block 411 at the bottom end of the upper cover 43 and the locking groove 412 at the edge of the housing 41, and the engagement between the locking block 411 and the locking block 45 at the bottom end of the housing 41, a stable and boltless locking and fixing between the upper cover 43 and the housing 41 is achieved. This structure simplifies the assembly and disassembly process of the primary filter, improves maintenance efficiency, and avoids the problems of easy stripping and troublesome disassembly of traditional threaded connections.

[0033] like Figure 4 As shown, the outer wall of the upper cover 43 is provided with a dust outlet 44 that penetrates the upper cover 43. The dust outlet 44 that penetrates the upper cover 43 provides an efficient and direct strong discharge channel for the dust separated by centrifugal force, ensuring that the dust thrown to the inner wall of the housing 41 can be quickly and smoothly discharged from the primary filter cavity, preventing it from accumulating inside and affecting the filtration efficiency or causing secondary dust.

[0034] like Figure 6 As shown, the dust removal structure 5 includes a rectangular frame 51. The inner wall of the rectangular frame 51 is the same size as the dust outlet 44 and is attached to it. A filter bag 52 is fixedly connected to the side of the rectangular frame 51 away from the dust outlet 44. The rectangular frame 51, which is the same size as the dust outlet 44 and is attached to it, and the filter bag 52 connected to it constitute an external dust removal structure 5. It can effectively intercept and collect the dust discharged from the dust outlet 44, and completely solve the core problem in traditional designs where the discharged dust is easily re-inhaled into the air inlet under the action of airflow, causing secondary pollution, and significantly improve the final air quality.

[0035] like Figure 7 and Figure 8As shown, a plug block 53 is fixedly connected to the top of the rectangular frame 51, and a slot 54 is provided at the top of the top of the cover 43. The inner wall of the slot 54 is inserted into the outer wall of the plug block 53. A mounting groove 58 is provided at the bottom of the cover 43, and a mounting block 55 is fixedly connected to the bottom of the rectangular frame 51. The inner wall of the mounting groove 58 is inserted into the mounting block 55. An elastic telescopic rod 56 is installed inside the mounting block 55, and a locking block 57 is fixedly connected to the output end of the elastic telescopic rod 56. A through mounting section is provided on the outer wall of the cover 43. The inner wall of the slot 59 is inserted into the outer wall of the slot block 57. Through the insertion of the insert block 53 into the slot 54, the mounting block 55 into the mounting slot 58, and the locking mechanism driven by the elastic telescopic rod 56 to insert the slot block 57 into the slot 59, a firm, sealed and one-button quick-release connection is achieved between the dust removal structure 5 and the dust outlet 44 of the top cover 43. This greatly facilitates the regular cleaning or replacement of the filter bag 52, ensures the continuous effectiveness of the dust removal function, and makes maintenance and operation simple and quick.

[0036] The working principle of this utility model is as follows: During use, the combined air filter is installed at the air intake end when the engine is running. The airflow generated at the air intake end drives the fan 42 to rotate, causing external air to enter the housing 41 from the bottom of the primary filter structure 4. At this point, large solid particles are first intercepted by the filter plate 48 connected to the metal ring 47 fitted onto the outer wall of the housing 41. The filter plate 48 is magnetically attached to the housing 41 via a magnetic ring 410, achieving pre-filtration and protecting the fan blades. Subsequently, the air is accelerated and rotated by the six-bladed fan 42 with wavy arc-shaped ends inside the body 1, forming a high-intensity centrifugal vortex in conjunction with the swirl plate 46 fixed inside the housing 41. Small dust particles are thrown towards the inner wall of the housing 41. The separated dust is forced out through the dust outlet 44 opened on the side wall of the top cover 43 and immediately enters the rectangular frame 51 of the dust removal structure 5. Finally, it is intercepted and collected by the filter bag 52, completely blocking the dust backflow. The rectangular frame 51 is inserted into the slot 54 by the insert block 53, the mounting block 55 is embedded in the mounting groove 58, and the locking block 57 is pushed into the locking hole 59 by the elastic telescopic rod 56 to achieve locking and fixation. The initially purified air enters the oil filter 3 at the bottom of the machine body 1 through the cylinder in the middle of the housing 41. The air and the filter oil fully contact and adsorb fine impurities. Finally, the clean air turns back upward and is output to the engine from the exhaust pipe 2 on the side of the machine body 1.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A combined air filter, comprising a body (1), characterized in that: An air outlet pipe (2) is fixedly connected to one side of the body (1). An oil filter (3) is fixedly installed at the bottom of the body (1). A primary filter structure (4) and a dust removal structure (5) are fixedly installed at the top of the body (1). The primary filter structure (4) includes a housing (41) and a top cover (43). The bottom of the housing (41) is snapped into the top of the body (1). A swirl plate (46) is fixedly connected inside the housing (41). A fan (42) is rotatably connected to the middle of the housing (41). The fan (42) is located above the swirl plate (46). The fan (42) has six blades, and the ends of the blades are all wavy arc plates.

2. The combined air filter according to claim 1, characterized in that: The outer wall of the housing (41) is fitted with a metal ring (47), and a filter plate (48) is fixedly connected to the inner wall of the metal ring (47). The inner wall of the filter plate (48) is fitted with the outer wall inside the housing (41), and the filter plate (48) is located below the swirl plate (46).

3. A combined air filter according to claim 2, characterized in that: The bottom end of the filter plate (48) is fixedly connected to a dust collection frame (49), and the bottom end of the dust collection frame (49) overlaps with the top end of the body (1).

4. A combined air filter according to claim 2, characterized in that: A magnetic ring (410) is fixedly connected to the outer wall of the housing (41), and the magnetic ring (410) is magnetically connected to the metal ring (47).

5. A combined air filter according to claim 1, characterized in that: The bottom end of the cover (43) is fixedly connected to a first locking block (411), and a locking groove (412) is provided at the edge of the shell (41). The inner wall of the locking groove (412) is slidably connected to the outer wall of the first locking block (411). The bottom edge of the shell (41) is fixedly connected to a second locking block (45), and the outer wall of the second locking block (45) is engaged with the bottom end of the first locking block (411).

6. A combined air filter according to claim 1, characterized in that: The outer wall of the upper cover (43) is provided with a dust outlet (44) that penetrates the upper cover (43).

7. A combined air filter according to claim 6, characterized in that: The dust removal structure (5) includes a rectangular frame (51). The inner wall of the rectangular frame (51) is the same size as the dust outlet (44) and is close to it. A filter bag (52) is fixedly connected to the side of the rectangular frame (51) away from the dust outlet (44).

8. A combined air filter according to claim 7, characterized in that: The top of the rectangular frame (51) is fixedly connected to a plug (53), the top of the cover (43) is provided with a slot (54), the inner wall of the slot (54) is inserted into the outer wall of the plug (53), the bottom of the cover (43) is provided with an installation groove (58), the bottom of the rectangular frame (51) is fixedly connected to an installation block (55), the inner wall of the installation groove (58) is inserted into the installation block (55), the interior of the installation block (55) is equipped with an elastic telescopic rod (56), the output end of the elastic telescopic rod (56) is fixedly connected to a locking block (57), the outer wall of the cover (43) is provided with a locking hole (59) that penetrates the installation groove (58), the inner wall of the locking hole (59) is inserted into the outer wall of the locking block (57).

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