An air cleaner with a resistance indicator

Abstract

The utility model relates to air cleaner technical field discloses an air cleaner with resistance indicator, including the casing, the casing top fixedly connected with the air inlet channel, the casing is linked together with the air inlet channel, the utility model discloses the positioning groove of air inlet channel drive is sleeved on the positioning post, and makes air inlet channel drive sealing washer and casing fit, simultaneously rack slides into the sliding slot, and drive gear rotates in fixed frame through rack, simultaneously gear drive ratchet rotates, and drive limit block and ratchet engagement through the restoring force of torsion spring, make limit block to ratchet rotation limit, thereby reach the purpose that air inlet channel is connected with casing, thereby facilitate staff to dismouting to air inlet channel, and then facilitate staff to replace the multiple paper filter core in air inlet channel, and then reduce the replacement difficulty of paper filter core, and air inlet channel is dismouting more time -saving and labor -saving simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, specifically to an air filter with a resistance indicator. Background Technology

[0002] With the rapid development of the automotive industry, the requirements for intake air quality in engines are becoming increasingly stringent. As a core component of the automotive engine's intake system, the air filter plays a crucial role in filtering impurities such as dust, grit, and pollen from the air. Its performance directly affects the engine's combustion efficiency, power output, fuel economy, and service life. If impurities in the air enter the engine, it will accelerate the wear of components such as pistons and cylinder walls, reduce combustion efficiency, lead to increased fuel consumption, excessive exhaust emissions, and even cause engine failure.

[0003] Traditional air filter housings are mostly sealed with bolts, with the filter element completely enclosed within the internal space. When the filter element needs to be replaced, users need to use tools to disassemble the housing. Some filters even require special tools or professional equipment to open, making the operation cumbersome and time-consuming. At the same time, the disassembly process is very easy to touch surrounding pipelines, posing a risk of damaging other components. Therefore, those skilled in the art provide an air filter with a resistance indicator to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide an air filter with a resistance indicator to solve the problems in the prior art.

[0005] This utility model provides the following technical solution: an air filter with a resistance indicator, comprising a housing, characterized in that: an air inlet duct is fixedly connected to the top of the housing, the housing is connected to the air inlet duct, two sets of paper filter elements are fixedly connected inside the housing, several sets of guide tubes are arranged inside the air inlet duct, a swirl tube is provided on the outer side of the top of the guide tube, the guide tube is fixed to an air intake baffle between the housing and the air inlet duct, the swirl tube is fixedly connected to another air intake baffle, there is a gap between the guide tube and the swirl tube, an engine air intake chamber is arranged on the right side of the housing, the engine air intake chamber is connected to the paper filter elements, a resistance indicator is fixedly connected to the bottom of the engine air intake chamber, the resistance indicator is connected to the interior of the engine air intake chamber through a wire, a limiting component is provided between the air inlet duct and the housing, and the housing is connected to the limiting component through the air inlet duct.

[0006] As a preferred embodiment of the above technical solution, the limiting component includes a sealing gasket fixedly connected to the bottom surface of the air inlet duct. Four sets of positioning grooves are symmetrically opened on the bottom surface of the air inlet duct. Positioning posts are fixedly connected to the shell surface of each of the four sets of positioning grooves. Fixing frames are fixedly connected to the outer walls of the four ends of the air inlet duct. The four sets of fixing frames are mirror-oriented. Gears are rotatably connected to each of the four sets of fixing frames. Sliding grooves are opened on the inner walls of the four sets of fixing frames. Racks are slidably connected to each of the four sets of sliding grooves. The racks mesh with the gears. One end of the rack is fixedly connected to the top of the side wall of the shell.

[0007] As a preferred embodiment of the above technical solution, ratchet wheels are fixedly connected to the outer surfaces of the four sets of gears, and fixed seats are fixedly connected to the outer walls of the fixed frames on the side of the four sets of ratchet wheels facing away from the air inlet. Rotating rods are rotatably connected inside the four sets of fixed seats, and torsion springs are wound around the surfaces of the rotating rods inside the four sets of fixed seats. Limiting blocks are fixedly connected to the outer surfaces of the four sets of rotating rods, and the limiting blocks mesh with the ratchet wheels.

[0008] As a preferred embodiment of the above technical solution, the torsion spring is wound and disposed at the middle position on the rotating rod.

[0009] As a preferred embodiment of the above technical solution, the rack is designed in an L-shape, and the groove is formed as a through hole that matches the shape of the rack.

[0010] As a preferred embodiment of the above technical solution, the two sets of paper filter elements are symmetrically arranged on the inner wall of the housing, and both sets of paper filter elements are designed as paper filter elements.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model connects the air inlet duct and the housing by placing the positioning groove onto the positioning post and ensuring the sealing gasket of the air inlet duct fits against the housing. Simultaneously, the rack slides into the groove and drives the gear to rotate within the fixed frame. The gear, in turn, drives the ratchet to rotate. The restoring force of the torsion spring engages the limiting block with the ratchet, thus limiting the rotation of the ratchet. This facilitates the disassembly and assembly of the air inlet duct, making it easier for workers to replace the multiple paper filter elements within it. This reduces the difficulty of replacing the paper filter elements and makes the disassembly and assembly of the air inlet duct more time-saving and labor-saving.

[0012] 2. This utility model removes larger pollutants and dust from the air through cyclone tube filtration, reducing the filtration difficulty of paper filter elements and preventing large amounts of pollutants and dust from quickly clogging the paper filter element and causing it to fail. This increases the service life of the paper filter element. By breaking up the air through the cyclone tube filtration, the air resistance entering each guide tube is basically the same when entering the secondary filter chamber. This makes the air resistance when passing through the resistance indicator stable and accurate, avoiding false alarms or missed alarms caused by different flow velocities when the air enters the air filter. Attached Figure Description

[0013] Figure 1 A three-dimensional structural diagram of an air filter with a resistance indicator; Figure 2 A bottom view schematic diagram of an air filter with a resistance indicator; Figure 3 A schematic diagram of the cross-sectional structure of a cyclone tube in an air filter with a resistance indicator; Figure 4 This is an exploded structural diagram of a limiting component in an air filter with a resistance indicator.

[0014] In the diagram: 1. Housing; 2. Air inlet duct; 3. Paper filter element; 4. Guide tube; 5. Swirl tube; 6. Engine air inlet chamber; 7. Resistance indicator; 8. Limiting assembly; 81. Sealing gasket; 82. Positioning groove; 83. Positioning post; 84. Fixing frame; 85. Gear; 86. Slide groove; 87. Rack; 88. Ratchet; 89. Fixing seat; 810. Rotating rod; 811. Torsion spring; 812. Limiting block. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] Please see Figures 1-4As shown, this utility model provides a technical solution: an air filter with a resistance indicator, including a housing 1, an air inlet duct 2 fixedly connected to the top of the housing 1, the housing 1 and the air inlet duct 2 communicating with each other, two sets of paper filter elements 3 fixedly connected inside the housing 1, several sets of guide pipes 4 arranged inside the air inlet duct 2, a swirl tube 5 provided on the outer side of the top of the guide pipe 4, the guide pipe 4 fixed to the air intake baffle between the housing 1 and the air inlet duct 2, the swirl tube 5 fixedly connected to another air intake baffle, a gap between the guide pipe 4 and the swirl tube 5, an engine air intake chamber 6 arranged on the right side of the housing 1, the engine air intake chamber 6 communicating with the paper filter element 3, a resistance indicator 7 fixedly connected to the bottom of the engine air intake chamber 6, the resistance indicator 7 communicating with the inside of the engine air intake chamber 6 through a wire, a limiting component 8 arranged between the air inlet duct 2 and the housing 1, the housing 1 being connected to the limiting component 8 through the air inlet duct 2.

[0017] Specifically, the cyclone tube 5 uses centrifugal force to throw pollutants and dust between the cyclone tube 5 and the guide tube 4, thus entering the dust collection chamber. The cyclone tube 5 filters out larger pollutants and dust in the air, reducing the filtration difficulty of the paper filter element 3 and preventing large amounts of pollutants and dust from quickly clogging the paper filter element 3 and causing it to fail. This increases the service life of the paper filter element 3. The air is broken up by the cyclone tube 5, ensuring that the air resistance entering the secondary filter chamber through each guide tube 4 is basically the same. This makes the air resistance when passing through the resistance indicator 7 stable and accurate, avoiding false alarms or missed alarms caused by different flow rates when the air enters the air filter.

[0018] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, the limiting component 8 includes a sealing gasket 81 fixedly connected to the bottom surface of the air inlet duct 2. Four sets of positioning grooves 82 are symmetrically opened on the bottom surface of the air inlet duct 2. Positioning posts 83 are fixedly connected to the surface of the housing 1 in each of the four sets of positioning grooves 82. Fixing frames 84 are fixedly connected to the outer walls of the four ends of the air inlet duct 2. The four sets of fixing frames 84 are mirror-oriented. Gears 85 are rotatably connected in each of the four sets of fixing frames 84. Sliding grooves 86 are opened on the inner walls of the four sets of fixing frames 84. Racks 87 are slidably connected in each of the four sets of sliding grooves 86. The four sets of racks 87 mesh with gears 85. One end of the rack 87 is fixedly connected to the top of the side wall of the housing 1.

[0019] Specifically, the air inlet duct 2 is positioned so that the positioning groove 82 is fitted onto the positioning post 83, and the air inlet duct 2 and the sealing gasket 81 are fitted into the housing 1. At the same time, the rack 87 slides into the slide groove 86, and the rack 87 drives the gear 85 to rotate in the fixed frame 84. The gear 85 drives the ratchet 88 to rotate, and the restoring force of the torsion spring 811 drives the limiting block 812 to mesh with the ratchet 88, so that the limiting block 812 limits the rotation of the ratchet 88. This achieves the purpose of connecting the air inlet duct 2 and the housing 1, making it easier for the staff to disassemble and assemble the air inlet duct 2, and thus making it easier for the staff to replace the multiple paper filter elements 3 in the air inlet duct 2. This reduces the difficulty of replacing the paper filter elements 3, and makes the disassembly and assembly of the air inlet duct 2 more time-saving and labor-saving.

[0020] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, ratchet 88 is fixedly connected to the outer surface of each of the four sets of gears 85. Fixing seat 89 is fixedly connected to the outer wall of the fixing frame 84 on the side of the four sets of ratchet 88 away from the air inlet duct 2. Rotating rod 810 is rotatably connected inside each of the four sets of fixing seats 89. Torsion spring 811 is wound around the surface of each of the four sets of fixing seats 89. Limiting block 812 is fixedly connected to the outer surface of each of the four sets of rotating rod 810. Each of the four sets of limiting blocks 812 meshes with the ratchet 88.

[0021] Specifically, the rack 87 drives the gear 85 to rotate within the fixed frame 84, causing the gear 85 to synchronously drive the ratchet 88 to rotate. As the ratchet 88 rotates, the limiting block 812 synchronously drives the rotating rod 810 to rotate within the fixed seat 89, causing the rotating rod 810 to twist the torsion spring 811 and causing the limiting block 812 to separate from the ratchet 88. This continues until the air inlet 2 drives the sealing gasket 81 to fit tightly against the housing 1. At this point, the restoring force of the torsion spring 811 causes the rotating rod 810 to reset and rotate within the fixed seat 89, causing the rotating rod 810 to drive the limiting block 812 to mesh with the ratchet 88. This achieves the purpose of limiting the unidirectional rotation of the ratchet 88, thus fixing the air inlet 2 onto the housing 1.

[0022] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, the torsion spring 811 is wound around the middle position of the rotating rod 810.

[0023] Specifically, the torsion spring 811 is subjected to the restoring force generated by the rotating rod 810, which uniformly drives the rotating rod 810 to reset and rotate within the fixed seat 89, preventing the rotating rod 810 from shaking or tilting when rotating within the fixed seat 89.

[0024] As one implementation method in this embodiment, please refer to Figures 1-4As shown, the rack 87 is designed in an L-shape, and the groove 86 is formed as a through hole that matches the shape of the rack 87.

[0025] In practice, it is easy for staff to pull the rack 87, so that the rack 87 slides in the opposite direction in the slide groove 86, and the gear 85 reverses in the fixed frame 84, so that the air inlet 2 is separated from the housing 1, thereby achieving the purpose of quick disassembly of the air inlet 2.

[0026] As one implementation method in this embodiment, please refer to Figures 1-3 As shown, two sets of paper filter elements 3 are symmetrically arranged on the inner wall of the housing 1, and both sets of paper filter elements 3 are designed as paper filter elements.

[0027] In practice, the two-layer paper filter element can filter the air, thereby improving the quality of the filtered air.

[0028] Working principle: First, the air inlet duct 2 is fitted onto the positioning post 83 through the positioning groove 82, causing the air inlet duct 2 to bring the sealing gasket 81 into contact with the housing 1. Simultaneously, the rack 87 slides into the slide groove 86, driving the gear 85 to rotate within the fixed frame 84. The gear 85 also drives the ratchet 88 to rotate. As the ratchet 88 rotates, the limiting block 812 synchronously drives the rotating rod 810 to rotate within the fixed seat 89, causing the rotating rod 810 to twist the torsion spring 811 and separating the limiting block 812 from the ratchet 88. This continues until the air inlet duct 2 brings the sealing gasket 81 into tight contact with the housing 1. At this point, the restoring force of the torsion spring 811 causes the rotating rod 810 to reset and rotate within the fixed seat 89, causing the rotating rod 810 to move the limiting block... 812 engages with ratchet 88, thereby limiting the unidirectional rotation of ratchet 88 and fixing the air inlet duct 2 to the housing 1. When it is necessary to disassemble the air inlet duct 2, ratchet 88 drives gear 85 to rotate in the fixed frame 84, and gear 85 synchronously drives rack 87 to rotate in the slide groove 86, and the fixed frame 84 causes the sealing gasket 81 on the air inlet duct 2 to fit tightly against the housing 1 until the limiting block 812 rotates off the ratchet 88. At this time, press the limiting block 812 with your hand and pull the air inlet duct 2 away from the housing 1, so that gear 85 rotates in the fixed frame 84 and drives rack 87 to slide out from the slide groove 86, thereby achieving the purpose of disassembling the air inlet duct 2, so that the staff can replace the paper filter element 3 in the air inlet duct 2.

[0029] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An air filter with a resistance indicator, comprising a housing (1), characterized in that: An air inlet duct (2) is fixedly connected to the top of the housing (1). The housing (1) is connected to the air inlet duct (2). Two sets of paper filter elements (3) are fixedly connected inside the housing (1). Several sets of guide pipes (4) are provided inside the air inlet duct (2). A swirl tube (5) is provided on the outer side of the top of the guide pipe (4). The guide pipe (4) is fixed on the air intake baffle between the housing (1) and the air inlet duct (2). The swirl tube (5) is fixedly connected to another air intake baffle. There is a gap between the cyclone tube (5) and the housing (1). An engine air inlet chamber (6) is provided on the right side of the housing (1). The engine air inlet chamber (6) is connected to the paper filter element (3). A resistance indicator (7) is fixedly connected to the bottom of the engine air inlet chamber (6). The resistance indicator (7) is connected to the inside of the engine air inlet chamber (6) through a wire. A limit component (8) is provided between the air inlet channel (2) and the housing (1). The housing (1) is connected to the limit component (8) through the air inlet channel (2).

2. An air filter with a resistance indicator according to claim 1, characterized in that: The limiting component (8) includes a sealing gasket (81) fixedly connected to the bottom surface of the air inlet duct (2). Four sets of positioning grooves (82) are symmetrically opened on the bottom surface of the air inlet duct (2). Positioning columns (83) are fixedly connected to the surface of the housing (1) in the four sets of positioning grooves (82). Fixing frames (84) are fixedly connected to the outer walls of the four ends of the air inlet duct (2). The four sets of fixing frames (84) are mirror-oriented. Gears (85) are rotatably connected in the four sets of fixing frames (84). Sliding grooves (86) are opened in the inner walls of the four sets of fixing frames (84). Racks (87) are slidably connected in the four sets of sliding grooves (86). The racks (87) mesh with the gears (85). One end of the rack (87) is fixedly connected to the top of the side wall of the housing (1).

3. An air filter with a resistance indicator according to claim 2, characterized in that: Ratchets (88) are fixedly connected to the outer end surfaces of the four sets of gears (85). Fixing seats (89) are fixedly connected to the outer wall of the fixing frame (84) on the side of the four sets of ratchet (88) away from the air inlet (2). Rotating rods (810) are rotatably connected inside the four sets of fixing seats (89). Torque springs (811) are wound around the surface of the rotating rods (810) inside the four sets of fixing seats (89). Limiting blocks (812) are fixedly connected to the outer end surfaces of the four sets of rotating rods (810). The limiting blocks (812) are meshed with the ratchet (88).

4. An air filter with a resistance indicator according to claim 3, characterized in that: The torsion spring (811) is wound around the middle position of the rotating rod (810).

5. An air filter with a resistance indicator according to claim 2, characterized in that: The rack (87) is designed in an L-shape, and the groove (86) is formed as a through hole that matches the shape of the rack (87).

6. An air filter with a resistance indicator according to claim 1, characterized in that: The two sets of paper filter elements (3) are symmetrically arranged on the inner wall of the housing (1), and both sets of paper filter elements (3) are designed as paper filter elements.

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