Filtering air inlet pipe for motorcycle engine

Abstract

The invention discloses a filtering air inlet pipe for a motorcycle engine, and belongs to the technical field of motorcycle air inlet pipes, the filtering air inlet pipe comprises an air inlet pipe body connected with the air inlet end of the motorcycle engine, a filtering shell is fixedly installed on the inner side of the right end of the air inlet pipe body, and a filtering assembly is installed on the inner side of the filtering shell; the right end of the filter shell is provided with an air inlet hole, the filter assembly comprises an air outlet pipe fixedly, elastically and rotatably mounted at the left end of the filter shell, a left cover plate is fixedly mounted on the outer side of the air outlet pipe, a filter cartridge is fixedly mounted on the right side of the left cover plate, meanwhile, the right end of the filter cartridge is fixedly connected with a right cover plate, and a filter element is fixedly arranged on the outer side of the filter cartridge in a sleeving manner; and the inner side of the air outlet pipe is provided with a pressure regulating assembly for regulating pressure and recoiling. According to the filtering air inlet pipe for the motorcycle engine, air can be efficiently filtered, multi-mode efficient cleaning of the filtering structure can be achieved through air pressure change adjustment, and the situation that normal air inlet is affected due to blockage is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of motorcycle intake pipes, and specifically to a filtering intake pipe for a motorcycle engine. Background Art

[0002] During the operation of a motorcycle engine, the intake pipe, as a key component of the engine intake system, its performance directly affects the power output, fuel economy, and service life of the engine. The intake pipe not only needs to ensure sufficient air supply but also effectively filter the air entering the engine to prevent impurities such as dust and grit from entering and avoid damage to the internal components of the engine due to wear.

[0003] The prior art (Chinese patent with publication number: CN216278219U, publication date: April 12, 2022) discloses an intake pipe for a motorcycle, which relates to the field of motorcycle intake pipes. It includes a motorcycle intake pipe. One end of the motorcycle intake pipe is provided with a pipe installation groove, and a threaded cap is threadedly installed on the pipe installation groove. A filter plate is fixedly installed on the inner wall of the threaded cap. There is a motorcycle intake pipe on the motorcycle, and a threaded cap is installed on the motorcycle intake pipe. A filter plate is fixedly installed on the inner wall of the threaded cap. The setting of the filter plate can filter the dust in the external air and prevent the dust and particulate matter in the air from entering the engine interior and causing damage to the internal components of the engine. Rotate the threaded cap and install it in the pipe installation groove. After tightening, loosen the connecting plate, which can drive the positioning block to move into the positioning groove to position and fix the position of the rotatably installed threaded cap, avoiding the problem that the threaded cap detaches due to vibration during the motorcycle's driving;

[0004] The prior art (Chinese patent with bulletin number: CN1 15234414B, bulletin date: May 7, 2024) discloses a motorcycle air filter with an intelligent anti-blocking function, which includes an air filter housing, an air filter element, and a cleaning mechanism; the two ends of the air filter housing are respectively connected to an intake pipe and an exhaust pipe. A cover plate is installed on the air filter housing, and an air velocity sensor is installed in the exhaust pipe; the air filter element is arranged inside the air filter housing and is used to filter the gas inhaled by the engine; the cleaning mechanism is installed on the air filter housing and is used to intelligently clean the air filter element to avoid the air filter element being blocked by gas impurities. Through the setting of corresponding mechanisms, the anti-blocking effect of the air filter can be greatly improved, avoiding the blockage phenomenon of the motorcycle air filter during long-term use. It can not only ensure the filtering effect of the air filter but also ensure the normal air intake volume of the engine, thereby enabling the motorcycle engine to operate normally and greatly reducing the failure rate of the motorcycle engine;

[0005] Although the existing air intake pipe for motorcycle engines can achieve automatic cleaning of the filtering structure to ensure the filtering effect and prevent blockage, most of its cleaning mechanisms use a single brush body for cleaning, resulting in ineffective cleaning. In particular, some impurities embedded in the filter holes cannot be effectively removed, which may cause blockage of the filtering mechanism and affect the air intake effect, presenting certain defects in use. Summary of the Invention

[0006] The purpose of the present invention is to provide an air intake pipe for motorcycle engines to solve the problem proposed in the above background technology. Although the existing air intake pipes for motorcycle engines on the market can achieve automatic cleaning of the filtering structure to ensure the filtering effect and prevent blockage, most of their cleaning mechanisms use a single brush body for cleaning, resulting in ineffective cleaning. In particular, some impurities embedded in the filter holes cannot be effectively removed, which may cause blockage of the filtering mechanism and affect the air intake effect.

[0007] To achieve the above purpose, the present invention provides the following technical solution: An air intake pipe for motorcycle engines includes an intake pipe body connected to the air intake end of the motorcycle engine. A filter housing is fixedly installed inside the right end of the intake pipe body. A filtering component is installed inside the filter housing. An air intake hole is opened at the right end of the filter housing. The filtering component includes an air outlet pipe fixedly and elastically rotatably installed at the left end of the filter housing. A left cover plate is fixedly installed on the outer side of the air outlet pipe. A filter cylinder is fixedly installed on the right side of the left cover plate. The right end of the filter cylinder is fixedly connected to a right cover plate. A filter element is fixedly sleeved outside the filter cylinder. A pressure regulating component for pressure regulating and backwashing is arranged inside the air outlet pipe. A guide rod is fixedly connected between the left cover plate and the right cover plate. A cleaning scraping member is slidably arranged on the outer side of the guide rod. A torsion-resistant elastic rubber member in a spiral shape is fixedly connected between the cleaning scraping member and the inner wall of the right part of the filter housing. Part of the torsion-resistant elastic rubber member in a spiral shape is attached to the outer side of the cleaning scraping member.

[0008] Preferably, the filter housing, the filter cylinder, and the filter element are coaxially arranged. The outer side of the filter element is wavy. Air sequentially passes through the air intake hole, the filter element, the filter cylinder, and the air outlet pipe.

[0009] Preferably, the pressure regulating component includes a movable slide elastically slidably installed inside the air outlet pipe. A through hole for gas transmission is opened on the movable slide. An elastic film is attached to the left side of the movable slide. One end of the torsion-resistant elastic rubber member is fixedly bonded to the outer wall of the movable slide. The torsion-resistant elastic rubber member blocks the through hole. The torsion-resistant elastic rubber member undergoes elastic deformation under the action of air pressure change to release the blockage of the through hole.

[0010] Preferably, the left side of the right cover plate is rotatably connected to a center column, and a movable engaging seat is rotatably installed on the outer side of the center column, and a first spring is fixedly connected between the movable engaging seat and the movable slide, and the center column runs through the center position of the movable slide.

[0011] Preferably, a ball is embedded in the inner wall of the through hole of the movable slide, and a spiral guide groove is opened on the outer side of the left part of the central column, and the ball rolls along the spiral guide groove to drive the central column to rotate during the movement of the movable slide.

[0012] Preferably, a movable rod is rotatably connected to the outer side of the right part of the central column, and the movable rod rotates under the action of centrifugal force during the rotation of the central column, and the movable rod knocks the inner wall of the filter element during the rotation.

[0013] Preferably, the cleaning scraper includes three annular scrapers, and the inner wall of each annular scraper is in contact with the outer side of the filter element, and the cleaning scraper can scrape off the dust on the outer side of the filter element when sliding along the guide rod.

[0014] Preferably, the tear-resistant elastic rubber part is cylindrical after being stretched, and the tear-resistant elastic rubber part is stretched and expanded under the action of air pressure during the air intake process of the air outlet pipe to drive the cleaning scraper to slide on the outside of the filter element.

[0015] Preferably, when the tear-resistant elastic rubber part is restored and twisted, the cleaning scraper is pulled to slide along the filter element, and when the tear-resistant elastic rubber part is stretched, the air outlet pipe, the left cover plate and the filter element are driven to rotate elastically through the cleaning scraper, thereby realizing centrifugal dust removal during the rotation of the filter element.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the filter intake pipe for motorcycle engine can filter air efficiently, and can realize multi-mode efficient cleaning of the filter structure by adjusting the change of air pressure, effectively avoiding blockage and affecting normal air intake, and the specific contents are as follows;

[0017] 1. Filter cartridges and filter elements are provided. Compared with the traditional filter mesh structure, the filter cartridges and filter elements with cylindrical structures have a larger filtering area, which effectively improves the filtering air intake effect.

[0018] 2. A movable slide and an elastic film are provided. When the air inlet pipe body is inhaling, the air pressure inside the air outlet pipe changes, so that the movable slide and the elastic film slide to the left on the inside of the air outlet pipe. When the movable slide cannot slide, the elastic film will be elastically deformed under the action of the air pressure, thereby releasing the blockage of the through hole and realizing normal air inhalation. When the air inhalation is completed, the elastic film will be reset, and then the movable slide will slide and reset, thereby pushing the gas inside the air outlet pipe to realize the recoil cleaning of the filter cartridge and filter element.

[0019] Further, a central column and a movable rod are also provided. As the movable sliding piece resets, the ball thereon will roll along the spiral guide groove, thereby driving the central column to rotate. At this time, the movable rod outside the central column will rotate under the action of centrifugal force, thereby knocking on the inner wall of the filter cartridge, and then assisting the dust outside the filter element to fall off through vibration.

[0020] 3. An anti-tear elastic rubber part is provided. As the air outlet pipe inhales air, the anti-tear elastic rubber part will stretch and recover under the action of negative pressure. At this time, the cleaning scraping part will slide to the left, and at the same time drive the filter component to rotate elastically. When the air inhalation ends, the filter component will rotate elastically and reset, thereby twisting the anti-tear elastic rubber part again, so that the cleaning scraping part slides on the outer wall of the filter element, thereby realizing the automatic scraping of the dust on the outer wall of the filter element. At the same time, the rotation of the filter element can utilize centrifugal force to promote the removal of the scraped dust, effectively avoiding the blockage of the filter component. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front view structural schematic diagram of the present invention;

[0022] Figure 2 is a sectional view structural schematic diagram of the present invention;

[0023] Figure 3 is a sectional view structural schematic diagram of the air inlet pipe body and the filter housing of the present invention;

[0024] Figure 4 is a connection structural schematic diagram of the cleaning scraping part and the anti-tear elastic rubber part of the present invention;

[0025] Figure 5 is an installation structural schematic diagram of the cleaning scraping part and the anti-tear elastic rubber part of the present invention;

[0026] Figure 6 is a side view structural schematic diagram of the cleaning scraping part of the present invention;

[0027] Figure 7 is an installation structural schematic diagram of the movable sliding piece of the present invention;

[0028] Figure 8 is a sectional view structural schematic diagram of the movable sliding piece of the present invention;

[0029] Figure 9 is of the present invention Figure 8 the enlarged structural schematic diagram at A;

[0030] Figure 10 is a connection structural schematic diagram of the movable sliding piece and the elastic film of the present invention.

[0031] In the figure: 1. intake pipe body; 2. filter housing; 3. intake hole; 4. outlet pipe; 5. left cover plate; 6. right cover plate; 7. filter cartridge; 8. filter element; 9. central column; 10. movable slide; 11. through hole; 12. elastic film; 13. movable connecting seat; 14. first spring; 15. guide groove; 16. ball; 17. movable rod; 18. guide rod; 19. cleaning scraper; 20. tear-resistant elastic rubber part. Detailed implementation manner

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1: The existing filter intake pipe is inconvenient for automatically cleaning and preventing blockage of the filtering mechanism. To solve this technical problem, the following technical content is disclosed in this embodiment. Please refer to Figures 1 - 3 and Figure 7 as shown; A filter intake pipe for a motorcycle engine includes an intake pipe body 1 connected to the intake end of the motorcycle engine. The inner side of the right end of the intake pipe body 1 is fixedly installed with a filter housing 2, and a filtering component is installed inside the filter housing 2. Moreover, an intake hole 3 is opened at the right end of the filter housing 2. The filtering component includes an outlet pipe 4 fixedly and elastically rotatably installed at the left end of the filter housing 2. A left cover plate 5 is fixedly installed on the outer side of the outlet pipe 4, and a filter cartridge 7 is fixedly installed on the right side of the left cover plate 5. At the same time, the right end of the filter cartridge 7 is fixedly connected to a right cover plate 6. Moreover, a filter element 8 is fixedly sleeved on the outer side of the filter cartridge 7. A pressure regulating component for pressure regulating and backwashing is arranged inside the outlet pipe 4. A guide rod 18 is fixedly connected between the left cover plate 5 and the right cover plate 6. A cleaning scraper 19 is slidably arranged on the outer side of the guide rod 18. And a tear-resistant elastic rubber part 20 in a spiral shape is fixedly connected between the cleaning scraper 19 and the inner wall of the right part of the filter housing 2. At the same time, a part of the tear-resistant elastic rubber part 20 in a spiral shape is attached to the outer side of the cleaning scraper 19.

[0034] The filter shell 2, the filter cartridge 7 and the filter element 8 are all coaxially arranged, and the outer side of the filter element 8 is wavy, and the air passes through the air inlet 3, the filter element 8, the filter cartridge 7 and the air outlet pipe 4 in sequence, and the pressure regulating component includes a movable slide 10 elastically slidably installed on the inner side of the air outlet pipe 4, and the movable slide 10 is provided with a through hole 11 for conveying gas, and an elastic rubber sheet 12 is fitted on the left side of the movable slide 10, and one end of the tear-resistant elastic rubber piece 20 is fixedly bonded to the outer wall of the movable slide 10, and the tear-resistant elastic rubber piece 20 blocks the through hole 11 at the same time, and the tear-resistant elastic rubber piece 20 elastically deforms under the action of air pressure changes to release the blockage of the through hole 11, and the cleaning scraper 19 includes three annular scrapers, and the inner wall of each annular scraper is attached to the outer side of the filter element 8, and the cleaning scraper 19 can scrape off the dust on the outer side of the filter element 8 when sliding along the guide rod 18. The tear-resistant elastic rubber part 20 is cylindrical after stretching, and the tear-resistant elastic rubber part 20 is stretched and stretched under the action of air pressure during the air intake process of the air outlet pipe 4 to drive the cleaning scraper 19 to slide on the outer side of the filter element 8. When the tear-resistant elastic rubber part 20 is restored and twisted, the cleaning scraper 19 is pulled to slide along the filter element 8, and when the tear-resistant elastic rubber part 20 is stretched, the air outlet pipe 4, the left cover plate 5 and the filter element 8 are elastically rotated through the cleaning scraper 19, and centrifugal dust removal is realized during the rotation of the filter element 8.

[0035] When the air inlet pipe body 1 is evacuated, negative pressure is generated at the air outlet pipe 4, so that the movable slide 10 slides to the left on the inner side of the air outlet pipe 4. At this time, the first spring 14 is stretched, and when the movable slide 10 cannot slide, the elastic film 12 is elastically deformed under the action of air pressure. The deformed elastic film 12 will partially break away from the surface of the movable slide 10 to release the blockage of the through hole 11. Subsequently, the tear-resistant elastic rubber part 20 will stretch under the action of air pressure, and the cleaning scraper 19 will slide to the left along the guide rod 18. At this time, the outside air can enter the inner side of the filter housing 2 through the air inlet hole 3, and be filtered by the filter cartridge 7 and the filter element 8 and then transported to The air outlet pipe 4, and when the air intake is completed, the air outlet pipe 4 will drive the left cover plate 5, the right cover plate 6, the filter cartridge 7, and the filter element 8 to rotate synchronously elastically, and at the same time, the guide rod 18 will drive the cleaning scraper 19 to rotate synchronously, so that the cleaning scraper 19 can twist the tear-resistant elastic rubber part 20, so that the tear-resistant elastic rubber part 20 will produce wrinkles and fit to the outside of the cleaning scraper 19, and the tear-resistant elastic rubber part 20 will synchronously pull the cleaning scraper 19 to slide to the right along the guide rod 18 during the twisting process, thereby scraping off the impurities on the outside of the filter element 8, and as the filter element 8 rotates, the centrifugal force can be used to further improve the removal effect of impurities on the outside of the filter element 8.

[0036] Embodiment 2: The technical content disclosed in this embodiment is a further improvement made on the basis of the above-mentioned embodiment 1. This embodiment discloses the following technical content, such as Figures 3 - 10As shown, a central column 9 is rotatably connected to the left side of the right cover plate 6, and a movable connection seat 13 is rotatably installed on the outer side of the central column 9. A first spring 14 is fixedly connected between the movable connection seat 13 and the movable sliding piece 10. At the same time, the central column 9 penetrates through the central position of the movable sliding piece 10. A ball 16 is embedded in the inner wall of the through hole of the movable sliding piece 10. A spiral guide groove 15 is formed on the outer side of the left part of the central column 9. During the movement of the movable sliding piece 10, the ball 16 rolls along the spiral guide groove 15 to drive the central column 9 to rotate. A movable rod 17 is rotatably connected to the outer side of the right part of the central column 9. During the rotation of the central column 9, the movable rod 17 rotates under the action of centrifugal force, and the inner wall of the filter element 8 is knocked during the rotation of the movable rod 17.

[0037] As the suction of the intake pipe body 1 ends, the movable sliding piece 10 will slide to the right along the inner wall of the outlet pipe 4 to reset under the elastic force of the first spring 14. At the same time, the elastic film 12 will be elastically restored and fit on the surface of the movable sliding piece 10 to realize the re-blocking of the through hole 11. At this time, the gas inside the outlet pipe 4 can be pushed, the air pressure inside the filter cartridge 7 increases, so that an air flow flowing outward from the filter element 8 is generated, thereby realizing the reverse flushing of the filter cartridge 7 and the filter element 8, avoiding the blockage and residual impurities in the filter hole structure of the filter cartridge 7 and the filter element 8. At the same time, as the movable sliding piece 10 slides and resets, it can slide on the outer side of the central column 9. At this time, the ball 16 on the movable sliding piece 10 will slide along the spiral guide groove 15 formed on the outer wall of the left part of the central column 9, so as to drive the central column 9 to rotate. At this time, the movable rod 17 connected to the outer side of the central column 9 will rotate under the action of rotational centrifugal force. During the rotation of the movable rod 17 with the central column 9, the inner wall of the filter element 8 will be knocked, so as to realize further auxiliary impurity removal and cleaning through the vibration effect, and fully avoid the blockage of the filter assembly after long-term use.

[0038] In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A filtering intake pipe for a motorcycle engine, comprising an intake pipe body (1) connected to the intake end of the motorcycle engine. A filter housing (2) is fixedly installed inside the right end of the intake pipe body (1). A filtering component is installed inside the filter housing (2). An intake hole (3) is provided at the right end of the filter housing (2). It is characterized in that The filtering component includes an air outlet pipe (4) fixedly and elastically rotatably installed at the left end of the filter housing (2). A left cover plate (5) is fixedly installed on the outer side of the air outlet pipe (4). A filter cartridge (7) is fixedly installed on the right side of the left cover plate (5). The right end of the filter cartridge (7) is fixedly connected to a right cover plate (6). A filter element (8) is fixedly sleeved on the outer side of the filter cartridge (7). A pressure regulating component for pressure regulating and backwashing is arranged inside the air outlet pipe (4). A guide rod (18) is fixedly connected between the left cover plate (5) and the right cover plate (6). A cleaning scraping part (19) is slidably arranged on the outer side of the guide rod (18). A torsion-shaped tear-resistant elastic rubber part (20) is fixedly connected between the cleaning scraping part (19) and the inner wall of the right part of the filter housing (2). The torsion-shaped tear-resistant elastic rubber part (20) partially adheres to the outer side of the cleaning scraping part (19).

2. The filtering intake pipe for a motorcycle engine according to claim 1, characterized in that: The filter housing (2), the filter cartridge (7) and the filter element (8) are all coaxially arranged. The outer side of the filter element (8) is wavy. Air passes through the intake hole (3), the filter element (8), the filter cartridge (7) and the air outlet pipe (4) in sequence.

3. The filtering intake pipe for a motorcycle engine according to claim 1, wherein: The pressure regulating component includes a movable sliding plate (10) elastically slidably installed inside the air outlet pipe (4). A through hole (11) for conveying gas is provided on the movable sliding plate (10). An elastic film (12) is arranged in a fitting manner on the left side of the movable sliding plate (10). One end of the tear-resistant elastic rubber part (20) is fixedly bonded to the outer wall of the movable sliding plate (10). The tear-resistant elastic rubber part (20) blocks the through hole (11). The tear-resistant elastic rubber part (20) undergoes elastic deformation under the action of air pressure change to release the blockage of the through hole (11).

4. A filtered intake pipe for a motorcycle engine according to claim 1, wherein: A central column (9) is rotatably connected to the left side of the right cover plate (6). A movable connecting seat (13) is rotatably installed on the outer side of the central column (9). A first spring (14) is fixedly connected between the movable connecting seat (13) and the movable sliding plate (10). The central column (9) penetrates through the central position of the movable sliding plate (10).

5. The filtering intake pipe for a motorcycle engine according to claim 4, characterized in that: A ball (16) is embedded in the inner wall of the through hole of the movable sliding plate (10). A spiral guide groove (15) is provided on the outer side of the left part of the central column (9). During the movement of the movable sliding plate (10), the ball (16) rolls along the spiral guide groove (15) to drive the central column (9) to rotate.

6. The filtering intake pipe for a motorcycle engine according to claim 5, characterized in that: A movable rod (17) is rotatably connected to the outer side of the right part of the central column (9). During the rotation of the central column (9), the movable rod (17) rotates under the action of centrifugal force. During the rotation of the movable rod (17), the inner wall of the filter element (8) is knocked.

7. The filtering intake pipe for a motorcycle engine according to claim 1, characterized in that: The cleaning scraping member (19) includes three circular scraping members, and the inner walls of the circular scraping members are attached to the outer side of the filter element (8). When the cleaning scraping member (19) slides along the guide rod (18), dust on the outer side of the filter element (8) is scraped off.

8. A filtered intake pipe for a motorcycle engine according to claim 1, characterized in that: The tear-resistant elastic rubber member (20) is in a cylindrical shape after being unfolded. During the air intake process of the air outlet pipe (4), the tear-resistant elastic rubber member (20) is stretched and unfolded under the action of air pressure to drive the cleaning scraping member (19) to slide on the outer side of the filter element (8).

9. The filtered intake pipe for a motorcycle engine according to claim 1, characterized in that: When the tear-resistant elastic rubber member (20) is restored and twisted, it pulls the cleaning scraping member (19) to slide along the filter element (8). When the tear-resistant elastic rubber member (20) is unfolded, it drives the air outlet pipe (4), the left cover plate (5), and the filter element (8) to rotate elastically through the cleaning scraping member (19). During the rotation of the filter element (8), centrifugal dust removal is achieved.

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