Air filter convenient to maintain

Abstract

The air filter convenient to maintain comprises a shell, a mounting groove is formed in the shell, a filter element body is arranged in the mounting groove, a positioning sleeve is arranged at the position, close to one end, of the inner side of the filter element body, the positioning sleeve is fixedly connected to one side of the mounting groove, a telescopic groove is formed in the positioning sleeve, and the telescopic groove is fixedly connected to one side of the mounting groove. Spring steel is fixedly connected into the telescopic groove, a sliding groove is formed in one side of the positioning sleeve, and the telescopic groove communicates with the sliding groove. According to the utility model, when the clamping block reaches the position of the embedding groove, the spring steel pushes the clamping block to be embedded into the embedding groove, and when the filter element main body reaches a specified position, the spring steel pushes the clamping block, so that the clamping block is embedded into the embedding groove, and the filter element main body is positioned and connected; the problem that the filter element main body is easy to loosen and generate gaps when being singly sleeved outside the positioning sleeve in the prior art is solved, and the mounting accuracy of the filter element main body is improved.

Description

Technical Field

[0001] This utility model relates to the field of air filters, and in particular to an air filter that is easy to maintain. Background Technology

[0002] The main function of an air filter is to ensure that the air entering the engine is clean, thereby reducing engine wear and extending its service life. Air filters are usually installed in front of the carburetor or intake manifold to prevent impurities in the air from entering the engine. The filter element is generally made of materials such as fiber, foam and carbon, which can effectively filter out foreign objects and harmful gases in the air.

[0003] When maintaining an existing air filter, the air filter element needs to be replaced. After removing the old air filter element, align and press the new filter element, and then try to install the filter element cover. However, this method can easily result in the air filter element not being properly fixed after maintenance, allowing impurities to enter the engine through gaps and reducing engine life. Utility Model Content

[0004] The technical problem this invention aims to solve is that after maintenance, the air filter element is often not properly fixed, allowing impurities to enter the engine through gaps and reducing engine life.

[0005] To solve the above-mentioned technical problems, the present invention provides an air filter that is easy to maintain, comprising a housing, an installation groove inside the housing, a filter element body inside the installation groove, a positioning sleeve inside the filter element body near one end, the positioning sleeve being fixedly connected to one side of the installation groove, a telescopic groove inside the positioning sleeve, a spring steel being fixedly connected inside the telescopic groove, a sliding groove on one side of the positioning sleeve, the telescopic groove and the sliding groove being connected, a locking block being slidably connected outside the sliding groove, the locking block being disposed outside the spring steel, and an fitting groove inside the filter element body, the side of the locking block away from the spring steel fitting into the fitting groove.

[0006] The above technical solution achieves the effect of the telescopic groove pushing the locking block to embed into the interlocking groove, and positioning the filter element body on the outside of the positioning sleeve. This solves the problem that the previous single embedded fixation could not completely determine the arrival position, thus improving the positioning effect.

[0007] The present invention is further configured such that the locking block is in an "n" shape, one side of the locking block is rounded, a slider is fixedly connected to one side of the locking block, a slide rail is provided on one side of the sliding groove, and the slider is slidably connected inside the slide rail.

[0008] The present invention is further configured such that the sliding groove has multiple sets arranged in a circular array outside the positioning sleeve, the slider abuts against one side of the slide rail, and the engaging block is rounded on the side away from the engaging groove.

[0009] The present invention is further configured such that an air inlet pipe is fixedly connected to one side of the outer shell, and an air outlet pipe is fixedly connected to the side of the outer shell away from the air inlet pipe. The air inlet pipe and the air outlet pipe are connected to the outer shell, and a clamp is fitted on the side of the air inlet pipe and the air outlet pipe away from the outer shell.

[0010] The present invention is further configured such that a cover plate is abutted against the side of the outer shell away from the air intake pipe, and a positioning block is fixedly connected to the cover plate near the filter element body, and the positioning block is embedded inside the filter element body.

[0011] The above technical solution enables the filter element body to be positioned and fixed by the positioning block after the filter element body is installed. This solves the problem of damage to the filter element body caused by repeated wear between the positioning block and the filter element body due to the previous use of a single positioning structure, and improves the fixed positioning effect.

[0012] The present invention is further configured such that a positioning ring is fixedly connected to the cover plate near the positioning block, the positioning ring is arranged in a ring shape, the positioning ring abuts against the outside of the filter element body, and a fixing component is provided on the outside of the cover plate.

[0013] The present invention is further configured such that the fixing component includes a connecting block, the connecting block is fixedly connected to the cover plate and the outside of the outer shell, and there are multiple sets of connecting blocks arranged in a circumferential array on the outside of the outer shell and the cover plate, and bolts are slidably connected inside the connecting block.

[0014] The present invention is further configured such that a washer is slidably connected to the outside of the bolt, the washer is attached to the opposite side of the connecting block, and a nut is threadedly connected to the outside of the bolt near the outer shell.

[0015] The above technical solution enables the bolts to be fitted inside the connecting block to connect the cover plate and the outer shell, thereby sealing the mounting groove. This solves the problem of the cover plate and the outer shell becoming loose in bumpy locations caused by using a snap-fit ​​structure for sealing, and improves the sealing effect.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention solves the problem of loosening and gaps in the filter element body during maintenance by using a slide rail to restrict the slider and prevent the locking block from slipping out of the sliding groove. The new filter element body is then pressed along the locking block, causing it to compress the locking block and stretch the spring steel. When the locking block reaches the fitting groove position, the spring steel pushes it into the groove. Similarly, when the filter element body reaches the designated position, the spring steel pushes the locking block into the groove, thus positioning and connecting the filter element body. This improves the accuracy of filter element body installation by solving the problem of loosening and gaps that often occurs when using a single sleeve on the outside of the positioning sleeve. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0020] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B.

[0022] In the diagram: 1. Outer shell; 2. Mounting groove; 3. Filter element body; 4. Telescopic groove; 5. Sliding groove; 6. Spring steel; 7. Clamping block; 8. Fitting groove; 9. Slide rail; 10. Slider; 11. Inlet pipe; 12. Outlet pipe; 13. Cover plate; 14. Positioning block; 15. Clamp; 16. Positioning ring; 17. Connecting block; 18. Bolt; 19. Washer; 20. Nut; 21. Positioning sleeve. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0024] Please see Figure 1 - Figure 4An easy-to-maintain air filter includes a housing 1. An installation groove 2 is formed inside the housing 1, and a filter element body 3 is disposed inside the installation groove 2. A positioning sleeve 21 is disposed on the inner side of the filter element body 3 near one end, and the positioning sleeve 21 is fixedly connected to one side of the installation groove 2. A telescopic groove 4 is formed inside the positioning sleeve 21, and a spring steel 6 is fixedly connected inside the telescopic groove 4. A sliding groove 5 is formed on one side of the positioning sleeve 21, and the telescopic groove 4 and the sliding groove 5 are connected. A locking block 7 is slidably connected to the outside of the sliding groove 5, and the locking block 7 is disposed outside the spring steel 6. An engagement groove 8 is formed inside the filter element body 3, and the side of the locking block 7 away from the spring steel 6 is engaged in the engagement groove 8. The locking block 7 is n-shaped, and one side of the locking block 7 has a rounded corner. A slider 10 is fixedly connected to one side of the locking block 7. A slide rail 9 is formed on one side of the sliding groove 5, and the slider 10 is slidably connected inside the slide rail 9. Multiple sets of sliding grooves 5 are arranged in a circumferential array within the positioning sleeve 21. Externally, the slider 10 abuts against one side of the slide rail 9. The locking block 7 is rounded on the side away from the fitting groove 8. During operation, the filter element body 3 can be pulled out from the mounting groove 2. At this time, the fitting groove 8 will first squeeze the locking block 7, allowing the locking block 7 to slide along the sliding groove 5. After the filter element body 3 is removed, the spring steel 6 will push the locking block 7 to reset. After resetting, the slider 10 can limit the sliding position of the locking block 7 inside the slide rail 9 to prevent the locking block 7 from slipping out of the sliding groove 5. At this time, a new filter element body 3 is taken out and inserted into the mounting groove 2. The filter element body 3 squeezes the locking block 7, and the operation is the same as when the filter element body 3 is taken out. When the fitting groove 8 reaches the position of the locking block 7, the spring steel 6 will push the locking block 7 to engage into the fitting groove 8, thereby positioning the filter element body 3. The rounded corner on the side away from the fitting groove 8 during operation is to ensure that the locking block 7 can operate smoothly when it extends and retracts.

[0025] An air inlet pipe 11 is fixedly connected to one side of the outer casing 1, and an air outlet pipe 12 is fixedly connected to the side of the outer casing 1 away from the air inlet pipe 11. The air inlet pipe 11 and the air outlet pipe 12 are connected to the outer casing 1. A clamp 15 is fitted onto the side of the air inlet pipe 11 and the side of the air outlet pipe 12 away from the outer casing 1. A cover plate 13 abuts against the side of the outer casing 1 away from the air inlet pipe 11. A positioning block 14 is fixedly connected to the cover plate 13 near the filter element body 3. The positioning block 14 is fitted into the filter element body 3. The cover plate 13 is close to the positioning block 14. A positioning ring 16 is fixedly connected at position 4. The positioning ring 16 is arranged in a ring and abuts against the outside of the filter element body 3. A fixing component is provided on the outside of the cover plate 13. The fixing component includes a connecting block 17, which is fixedly connected to the outside of the cover plate 13 and the outer shell 1. There are multiple sets of connecting blocks 17 arranged in a circumferential array on the outside of the outer shell 1 and the cover plate 13. A bolt 18 is slidably connected inside the connecting block 17, and a washer 19 is slidably connected outside the bolt 18. The washer 19 fits against the opposite side of the connecting block 17. A nut 20 is threaded onto the outside of bolt 18 near the outer casing 1. During operation, the intake pipe 11 is fixed to the air inlet position by clamp 15. Air enters the filter body 3 from inside the intake pipe 11. The air is then filtered by the filter body 3, and the filtered air enters the cylinder from the outlet pipe 12, thus achieving the effect of filtering the intake air. During maintenance, bolt 18 is rotated to disengage the nut 20 from the outside of bolt 18. At this time, cover plate 13 can be opened from the top of outer casing 1. The new filter body 3 is then placed into the mounting groove 2, and cover plate 13 is placed back on top of outer casing 1. Gaskets 19 are inserted between connecting blocks 17, and positioning blocks 14 are embedded inside the filter body 3. Positioning ring 16 then restricts the filter body 3, thus fixing the positioned filter body 3. Bolt 18 is inserted along connecting blocks 17 and bolt 18, and the nut 20 is rotated to the outside of bolt 18, thus fixing cover plate 13 and outer casing 1, completing the entire maintenance process.

[0026] In use, the filter element body 3 can be pulled out from the mounting groove 2. At this time, the fitting groove 8 will first squeeze the locking block 7, allowing the locking block 7 to slide along the sliding groove 5. After the filter element body 3 is removed, the spring steel 6 will push the locking block 7 to reset. After resetting, the slider 10 can limit the sliding position of the locking block 7 inside the slide rail 9 to prevent the locking block 7 from slipping out of the sliding groove 5. Then, a new filter element body 3 is taken out and inserted into the mounting groove 2. The filter element body 3 squeezes the locking block 7, and the operation is the same as when the filter element body 3 is taken out. When the fitting groove 8 reaches the position of the locking block 7, the spring steel 6 will push the locking block 7 to engage into the fitting groove 8, thereby positioning the filter element body 3. The rounded corner of the locking block 7 away from the fitting groove 8 during operation is secured by the clamp 15 to ensure smooth operation of the locking block 7 during extension and retraction. Positioned at the air inlet, air enters the filter body 3 from the inside of the air intake pipe 11. The air is then filtered by the filter body 3, and the filtered air enters the cylinder from the air outlet pipe 12, thus achieving the effect of filtering the intake air. During maintenance, turn the bolt 18 to disengage the nut 20 from the outside of the bolt 18. Then, the cover plate 13 can be opened from the top of the outer shell 1. Place the new filter body 3 into the mounting groove 2, and then cover the top of the outer shell 1 with the cover plate 13. Insert the gasket 19 between the connecting blocks 17. Then, the positioning block 14 is embedded inside the filter body 3, and the positioning ring 16 restricts the filter body 3, thereby fixing the positioned filter body 3. Insert the bolt 18 along the connecting block 17 and the bolt 18, and then rotate the nut 20 to the outside of the bolt 18, thereby fixing the cover plate 13 and the outer shell 1, thus completing the entire maintenance process.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An easy-to-maintain air filter, comprising a housing (1), characterized in that: The outer shell (1) has an installation groove (2) inside, and a filter element body (3) is provided inside the installation groove (2). A positioning sleeve (21) is provided on the inner side of the filter element body (3) near one end. The positioning sleeve (21) is fixedly connected to one side of the installation groove (2). A telescopic groove (4) is provided inside the positioning sleeve (21). A spring steel (6) is fixedly connected inside the telescopic groove (4). A sliding groove (5) is provided on one side of the positioning sleeve (21). The telescopic groove (4) and the sliding groove (5) are connected in communication. A locking block (7) is slidably connected to the outside of the sliding groove (5). The locking block (7) is provided outside the spring steel (6). An interlocking groove (8) is provided inside the filter element body (3). The side of the locking block (7) away from the spring steel (6) is interlocked inside the interlocking groove (8).

2. The air filter that is easy to maintain according to claim 1, characterized in that: The locking block (7) is arranged in an "n" shape, one side of the locking block (7) is rounded, and a slider (10) is fixedly connected to one side of the locking block (7). A slide rail (9) is provided on one side of the sliding groove (5), and the slider (10) is slidably connected inside the slide rail (9).

3. The air filter that is easy to maintain according to claim 2, characterized in that: The sliding groove (5) has multiple sets arranged in a circular array outside the positioning sleeve (21), the slider (10) abuts against one side of the slide rail (9), and the engaging block (7) is set with rounded corners on the side away from the engaging groove (8).

4. The air filter that is easy to maintain according to claim 1, characterized in that: An air inlet pipe (11) is fixedly connected to one side of the outer shell (1), and an air outlet pipe (12) is fixedly connected to the side of the outer shell (1) away from the air inlet pipe (11). The air inlet pipe (11) and the air outlet pipe (12) are connected to the outer shell (1), and a clamp (15) is fitted on the side of the air inlet pipe (11) and the air outlet pipe (12) away from the outer shell (1).

5. An air filter that is easy to maintain according to claim 1, characterized in that: The outer shell (1) is abutted against a cover plate (13) on the side away from the air intake pipe (11). The cover plate (13) is fixedly connected to a positioning block (14) near the filter element body (3). The positioning block (14) is fitted inside the filter element body (3).

6. An easy-to-maintain air filter according to claim 5, characterized in that: A positioning ring (16) is fixedly connected to the cover plate (13) near the positioning block (14). The positioning ring (16) is arranged in a ring shape and abuts against the outside of the filter element body (3). A fixing component is provided on the outside of the cover plate (13).

7. An easy-to-maintain air filter according to claim 6, characterized in that: The fixing component includes a connecting block (17), which is fixedly connected to the outside of the cover plate (13) and the outer shell (1). There are multiple sets of connecting blocks (17) arranged in a circumferential array outside the outer shell (1) and the cover plate (13). Bolts (18) are slidably connected inside the connecting block (17).

8. An easy-to-maintain air filter according to claim 7, characterized in that: A washer (19) is slidably connected to the outside of the bolt (18), the washer (19) is attached to the opposite side of the connecting block (17), and a nut (20) is threadedly connected to the outside of the bolt (18) near the outer shell (1).

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