Waterproof rubber sleeve for air inlet of motorcycle air filter
By designing a waterproof rubber cover, including a waterproof rubber intake shield and a clamping cover, the problem of easy water inlet inlet of motorcycle air filter is solved, and the waterproof effect and smooth air intake is achieved. The air inlet status is observed without disassembling the air filter, protecting the safety of the engine.
Patent Information
- Application Number
- CN202422628493.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The existing motorcycle air filter air inlet structure is likely to cause rainwater to enter, affecting the safety of the engine, and it is impossible to quickly determine whether water is inflowing. The existing water barrier device is not effective and is troublesome to disassemble.
Design a waterproof rubber cover that includes a waterproof rubber intake shield, a clamping cover and a water drain structure to completely block the air intake port, and a transparent clamping cover top cover is set for easy observation. It uses 65-degree nitrile rubber material to ensure waterproof effect and smooth air intake.
Effectively prevent rainwater from entering, ensure smooth air intake, rapid water discharge, transparent top cover is easy to observe, simple structure, high safety, protect the air filter and engine, and is green and environmentally friendly.
Smart Images

Figure CN223136286U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of parts of a motorcycle air filter, in particular to a waterproof rubber sleeve for an air inlet of a motorcycle air filter. Background Art
[0002] Currently, on a motorcycle, an air filter needs to be installed to filter the air entering the engine. The air filter is provided with an air inlet and an air outlet with a relatively large round hole diameter. The air inlet is designed as an open pipe orifice, and generally, it can directly intake air without connecting an air inlet pipe or an air intake duct. The air outlet is connected to the engine through an air outlet duct or the like. The air filter with a traditional structure is directly installed on the frame to achieve the purpose of quick installation and convenient air intake. In the prior art, the air inlets of air filters are all open and unobstructed structures (convenient for large-capacity air intake), but in the actual use process, some problems that need to be solved urgently are found, which are specifically as follows: (1) In order to achieve smooth air intake, the traditional air filter has no rubber sleeve or baffle plate covering the air inlet at the air inlet, and rainwater easily enters the air filter from the water inlet, causing damage to the engine. For example, in the "Off-road Motorcycle Waterproof Air Filter" with Chinese Patent No. 202222989557.5, the air inlet of this patent document is an open structure without any shielding or water-blocking structure to prevent water from entering the air inlet. This patent blocks mud and water by the height of the outer wall 8 being greater than the height of the air inlet 3, and the outer wall 8 is outward and the air inlet is inward, but mud and water can still enter the air inlet from the gap or side of the outer wall. Moreover, since there is no direct shielding water-blocking structure at the position of the air inlet, the purpose of completely preventing water from entering without affecting the air intake effect cannot be achieved. (2) The "Air Filter and Motorcycle" with Chinese Patent No. 201821947996.7 discloses that a water-blocking device 51 is provided near the air inlet 41 of the air filter. Although this patent is provided with a water-blocking device to block water, there is a certain distance between the water-blocking device and the air inlet of the air filter, and the water-blocking device only shields the air inlet of the air filter from the front, and there is no shielding on the side and top of the air inlet of the air filter. When the water impacts the water-blocking device and is higher than its height, water overflow will occur. At this time, the water will flow into the water inlet of the air filter, and the water can also enter from the unshielded space between the water-blocking device and the air inlet of the air filter. In this way, the water-blocking effect cannot achieve complete water-blocking, and there is still a risk that water will enter the air inlet of the air filter, and its water-blocking effect has not been optimized. (3) Whether there is no water-blocking device or a water-blocking device is set, in the prior art, when rainwater enters the frame near the water inlet, there is no drainage device or structure to quickly drain the water, and the effect of minimizing rainwater from entering the air inlet or reducing the amount of water entering the air inlet cannot be achieved. (4) When rainwater enters the air filter from the air inlet, it is necessary to disassemble the air filter to know whether the air filter is flooded. Disassembling the air filter is troublesome, and it is impossible to intuitively and quickly judge whether the air filter is flooded without disassembling the air filter.
[0003] Therefore, it is necessary to make a certain waterproof protection structure for the water inlet of the motorcycle air filter in the prior art to improve the problems of the prior art, and develop an air inlet waterproof rubber sleeve structure for protecting the air inlet from water ingress while not affecting the air intake of the air inlet. Summary of the Invention
[0004] The purpose of the present utility model is to overcome the above-mentioned disadvantages of the prior art and provide an air inlet waterproof rubber sleeve for a motorcycle air filter. The air inlet waterproof rubber sleeve of the motorcycle air filter adopts a structure that completely covers and shields the air inlet of the air filter to prevent rainwater from entering the air inlet. It can not only block a large amount of water from entering, but also does not affect the air intake effect of the air inlet of the air filter. At the same time, a plurality of water drainage structures, such as water drainage grooves, water guiding grooves and water drainage plates, are arranged on the outer side of the entire waterproof rubber sleeve to quickly drain and discharge the rainwater contacting the outer side and the top of the waterproof rubber sleeve, without accumulating rainwater, achieving the effects of quick water drainage and waterproof performance. In addition, a transparent waterproof rubber clamping cover top cover is arranged on the top of the air inlet waterproof rubber sleeve to quickly observe whether the air inlet is intake air, intuitively know the operation of the air filter, without disassembling the air filter, which is convenient, fast, intuitive and clear. The overall air inlet waterproof rubber sleeve structure is simple, practical, safe, effectively protects the air filter and the engine, and is green and environmentally friendly.
[0005] The technical solution adopted by the present utility model to solve its technical problems is: an air inlet waterproof rubber sleeve for a motorcycle air filter, including a waterproof rubber sleeve assembly installed on the vehicle frame and located above the air filter; the waterproof rubber sleeve assembly includes a waterproof rubber air intake shield covering the air inlet of the air filter and a waterproof rubber clamping cover extending outward along one end of the waterproof rubber cover and clamping the outside of the air filter and covering the top of the air filter; the waterproof rubber air intake shield and the waterproof rubber clamping cover are an integrally connected one-piece structure.
[0006] The top of the waterproof rubber air intake shield is provided with an inclined water drainage mounting plate that is inclined upward. The back of the waterproof rubber air intake shield is provided with a waterproof rubber back plate that extends downward and completely shields and covers the air inlet. The side of the waterproof rubber air intake shield is provided with a waterproof rubber side plate that extends downward and shields the air inlet; a side plate water drainage groove that is recessed inward on the waterproof rubber side plate and is arranged at an angle with the inclined water drainage mounting plate in the opposite direction is provided on the waterproof rubber side plate.
[0007] The top of the waterproof rubber clamping cover is provided with a waterproof rubber clamping cover top cover that protrudes upward and has an irregular wavy shape; the waterproof rubber clamping cover is arranged at an obtuse angle with the inclined water drainage mounting plate in the opposite direction.
[0008] Furthermore, the side plate water drainage groove is in the shape of a semi-circular through groove arranged on one waterproof rubber side plate, and the side plate water drainage groove on the other waterproof rubber side plate is a water drainage protruding skirt that protrudes outward from the bottom of the waterproof rubber side plate.
[0009] Furthermore, the connection position between the waterproof rubber clamping cover top cover and the waterproof rubber clamping cover is an arc-shaped water discharge groove that is recessed downward; a water guiding chute extending toward the tail direction is also provided at the middle position of one outer side surface of the waterproof rubber clamping cover top cover.
[0010] Furthermore, the waterproof rubber clamping cover top cover and the waterproof rubber clamping cover are of an integrally formed structure, and the waterproof rubber clamping cover top cover is a visible transparent top cover.
[0011] Furthermore, reinforcing ribs protruding outward are evenly distributed on the outer side surface of the waterproof rubber back plate.
[0012] Furthermore, mounting holes are provided on the inclined water discharge mounting plate, and the inclined water discharge mounting plate is correspondingly and matingly mounted with a frame mounting plate on the vehicle frame. Frame mounting holes corresponding to and matingly mounted with the mounting holes on the mounting plate are provided on the frame mounting plate.
[0013] Furthermore, the waterproof rubber kit is a nitrile rubber kit with a hardness of 65 degrees.
[0014] To sum up, the air inlet waterproof rubber sleeve of the motorcycle air filter of the present utility model adopts a structure that completely covers and shields the air inlet of the air filter to prevent rainwater from entering the air inlet. It can not only block a large amount of water from entering but also does not affect the air intake effect of the air inlet of the air filter; at the same time, a plurality of water discharge structures, such as water discharge grooves, water guiding grooves, and water discharge plates, are provided on the outer side of the entire waterproof rubber sleeve to quickly drain and discharge the rainwater contacting the outer side and the top of the waterproof rubber sleeve, without accumulating rainwater, achieving the effects of quick water discharge and waterproof performance; in addition, a transparent waterproof rubber clamping cover top cover is also provided on the top of the air inlet waterproof rubber sleeve to quickly observe whether air is entering the air inlet, intuitively know the working condition of the air filter, without disassembling the air filter, which is convenient, fast, intuitive, and clear. The overall air inlet waterproof rubber sleeve structure is simple, highly practical, safe, effectively protects the air filter and the engine, and is green and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is an exploded schematic view of the structure of the air inlet waterproof rubber sleeve of a motorcycle air filter of the present utility model mounted on a vehicle frame;
[0016] Figure 2 is another exploded schematic view of the structure of the air inlet waterproof rubber sleeve of a motorcycle air filter of the present utility model mounted on a vehicle frame in another direction;
[0017] Figure 3 is a front view schematic view of the air inlet waterproof rubber sleeve of a motorcycle air filter of the present utility model;
[0018] Figure 4 is a rear view schematic view of the air inlet waterproof rubber sleeve of a motorcycle air filter of the present utility model;
[0019] Figure 5 It is a left view schematic diagram of the air inlet waterproof rubber sleeve of a motorcycle air filter of the present utility model;
[0020] Figure 6 It is a right view schematic diagram of the air inlet waterproof rubber sleeve of a motorcycle air filter of the present utility model;
[0021] Figure 7 It is a top view schematic diagram of the air inlet waterproof rubber sleeve of a motorcycle air filter of the present utility model;
[0022] Figure 8 It is a bottom view schematic diagram of the air inlet waterproof rubber sleeve of a motorcycle air filter of the present utility model;
[0023] Figure 9 It is a three-dimensional schematic diagram of the air inlet waterproof rubber sleeve of a motorcycle air filter of the present utility model;
[0024] The reference signs in the drawings are as follows: 1. Frame; 2. Air filter; 3. Waterproof rubber sleeve kit; 4. Air inlet; 5. Waterproof rubber air inlet guard; 6. Waterproof rubber clamping cover; 7. Inclined water drainage mounting plate; 8. Waterproof rubber back plate; 9. Waterproof rubber side plate; 10. Side plate water drainage groove; 11. Waterproof rubber clamping cover top cover; 12. Water drainage raised skirt; 13. Arc-shaped water drainage groove; 14. Water guiding chute; 15. Reinforcing rib; 16. Mounting plate mounting hole; 17. Frame mounting hole; 18. Air outlet; 19. Screw; 20. Frame mounting plate. Specific embodiments
[0025] Embodiment 1
[0026] The air inlet waterproof rubber sleeve of a motorcycle air filter described in this Embodiment 1, as Figure 1 and Figure 2As shown in the figure, it includes a waterproof glue kit 3 installed on the vehicle frame 1 and located above the air filter 2; the waterproof glue kit includes a waterproof glue air intake shield 5 covering the air intake 4 of the air filter and a waterproof glue clamping shield 6 extending outward from one end of the waterproof glue shield, clamping the outside of the air filter and covering the top of the air filter; the waterproof glue air intake shield and the waterproof glue clamping shield are an integrally connected one-piece structure. This waterproof glue kit is mainly composed of a waterproof glue air intake shield and a waterproof glue clamping shield. The waterproof glue air intake shield completely covers the front, top and side of the air intake to achieve the purpose of preventing rainwater from entering, with excellent waterproof effect, and at the same time does not completely close the air intake and the air intake passage, without affecting the air intake effect. The entire air intake waterproof glue sleeve is fixedly installed with the vehicle frame through the waterproof glue kit. The waterproof glue clamping shield covers and clamps the side of the air filter without an air intake, achieving the purpose of stable overall installation of the waterproof glue kit; at the same time, the waterproof glue clamping shield also covers the top and side of the air outlet 18 of the air filter, also having a certain waterproof effect on the air outlet. The air outlet is connected to the engine through an air outlet pipe.
[0027] In Embodiment 1, as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, an inclined water-draining mounting plate 7 that slopes upward is provided at the top of the waterproof glue air intake shield. A waterproof glue back plate 8 that extends downward and completely covers the air intake is provided at the back of the waterproof glue air intake shield. A waterproof glue side plate 9 that extends downward and shields the air intake is provided on the side of the waterproof glue air intake shield. A side plate water-draining groove 10 that is recessed inward on the waterproof glue side plate and is arranged at an angle opposite to the inclined water-draining mounting plate is provided. The inclined water-draining mounting plate is inclined upward for mounting and fixing with the vehicle frame to form the effect of mounting and fixing the entire waterproof glue kit on the vehicle frame. At the same time, when rainwater falls from above onto this inclined water-draining mounting plate, the water can be quickly drained and discharged, achieving the purpose of quickly discharging without water accumulation. The waterproof glue back plate can completely cover and block the air intake so that the air intake is not exposed. The front of the air intake faces the waterproof glue back plate and is completely blocked. The length of the waterproof glue back plate extending upward is longer than the height of the horizontally placed air intake, and the effect of completely covering and hiding the air intake can be achieved, realizing the waterproof effect of blocking the air intake to prevent water from entering. In addition, there is a certain distance gap between the waterproof glue back plate and the air intake, so that the intake of the air intake is not affected and the intake is smooth. The waterproof glue side plate extends downward, and in this way, the side, top, and part of the bottom positions of the air intake, etc., are covered, so that the side, top, and bottom of the air intake are also blocked, and these surfaces of the air intake are also covered, achieving a good waterproof effect. In addition, the length of the waterproof glue side plate gradually decreases from the position close to the waterproof glue back plate to the tail, which can not only achieve the purpose of blocking the air intake but also leave a certain gap when the waterproof glue side plate covers it and is not in a completely sealed state, ensuring the fluidity of the air entering the air intake position and realizing the smooth intake without obstruction. The provided side plate water-draining groove can quickly drain and discharge the rainwater falling on the inclined water-draining mounting plate and the waterproof glue air intake shield from this side plate water-draining groove, preventing water accumulation on the waterproof glue air intake shield and enabling the outer surface of the waterproof glue air intake shield to achieve the effects of quick water drainage and quick drying as soon as possible.
[0028] In Embodiment 1, a waterproof glue clamping cover top cover 11 that protrudes upward and has an irregular wavy shape is provided at the top of the waterproof glue clamping cover. The waterproof glue clamping cover is arranged at an obtuse angle opposite to the inclined water-draining mounting plate. When the rainwater hitting the top of the waterproof glue clamping cover and the inclined water-draining mounting plate also flows to the top of the waterproof glue clamping cover, the provided structure of the waterproof glue clamping cover top cover can quickly divert and drain the water, achieving the function of quick drainage here.
[0029] In Embodiment 1, the side plate drain groove is in the shape of a semi-circular through groove provided on one waterproof glue side plate, and the side plate drain groove on the other waterproof glue side plate is a water discharge convex skirt 12 protruding outward at the bottom of the waterproof glue side plate. Among the two waterproof glue side plates, the side plate drain groove provided on one waterproof glue side plate in the shape of a semi-circular through groove can achieve rapid drainage. Just like a drainage pipe, the water flowing into the semi-circular through groove can be quickly diverted and drained away; while the water discharge convex skirt provided on the other waterproof glue side plate is similar to a multi-level step inclined from top to bottom, enabling rainwater to be diverted and discharged along the steps. In addition, the different shapes of the side plate drain grooves of the two waterproof glue side plates can also serve the purpose of preventing the entire waterproof glue kit from being installed in the wrong way.
[0030] In Embodiment 1, the connection position between the waterproof glue clamping cover top cover and the waterproof glue clamping cover is an arc-shaped drain groove 13 recessed downward; a water guide chute 14 extending towards the tail direction is also provided at the middle position of one outer side surface of the waterproof glue clamping cover top cover. In addition to discharging along its curvature towards the inclined tail, the rainwater falling on the waterproof glue clamping cover top cover will also be diverted out along the outer side of the waterproof glue clamping cover top cover. The designed arc-shaped drain groove can quickly drain and discharge the rainwater outside the waterproof glue clamping cover top cover, and the designed water guide chute can accelerate the rapid discharge of the rainwater along the waterproof glue clamping cover top cover; the design of the two grooves can achieve the rapid discharge of rainwater.
[0031] In Embodiment 1, the waterproof glue clamping cover top cover and the waterproof glue clamping cover are of an integrally formed one-piece structure, and the waterproof glue clamping cover top cover is a visible transparent top cover. Designing the waterproof glue clamping cover top cover and the waterproof glue clamping cover as a seamless one-piece structure (which can be integrally formed during production) can achieve the effect of sealing and not leaking water, with good waterproof performance. In addition, the waterproof glue clamping cover top cover is a cover body made of transparent material, which can directly observe the situation of the top of the air filter below and whether water enters the water inlet, without having to disassemble the air filter to know whether water enters, and it is convenient and fast to understand the working condition of the air filter.
[0032] In Embodiment 1, outwardly convex reinforcing ribs 15 are evenly distributed on the outer side surface of the waterproof glue back plate. Since the front of the air inlet is directly facing the waterproof glue back plate, a relatively large complex pressure will be generated when the air inlet intakes air. The setting of the reinforcing ribs can increase the strength of the waterproof glue back plate. When the air inlet intakes air, there is a certain suction force on the waterproof glue back plate, and the provided reinforcing ribs can enable the waterproof glue back plate to remain unchanged in shape when attracted by the suction force.
[0033] In the first embodiment, the inclined water-draining mounting plate is provided with mounting plate mounting holes 16, and the inclined water-draining mounting plate is correspondingly and matingly mounted with a frame mounting plate 20 on the frame. The frame mounting plate is provided with frame mounting holes 17 that are correspondingly and matingly mounted with the mounting plate mounting holes; the mounting plate mounting holes and the frame mounting holes are locked and fixed by screws 19, so that the inclined water-draining mounting plate can be fixedly mounted on the frame mounting plate, and the purpose of fixedly mounting the entire waterproof rubber kit on the frame can be achieved. The inclined water-draining mounting plate and the frame mounting plate are fixedly mounted. By matching and corresponding the mounting plate mounting holes and the frame mounting holes and fixing them with screws, the purpose of fixedly mounting the entire waterproof rubber kit on the frame can be achieved.
[0034] In the first embodiment, the waterproof rubber kit is a nitrile rubber kit with a hardness of 65 degrees. This waterproof rubber kit is manufactured by injecting nitrile rubber into a mold, and the hardness is adjusted to 65 degrees. Nitrile rubber has comprehensive properties such as oil resistance, water resistance, physical and mechanical properties, and chemical resistance. It is one of the most representative rubbers among many excellent rubbers. Making effective use of these characteristics of nitrile rubber can enable the waterproof rubber kit to meet various uses.
[0035] In the first embodiment, the air inlet waterproof rubber sleeve of the motorcycle air filter adopts a structure that completely covers the air inlet of the air filter to prevent rainwater from entering the air inlet. It can block a large amount of water from entering and does not affect the air intake effect of the air inlet of the air filter; at the same time, a plurality of water-draining structures are provided on the outer side of the entire waterproof rubber sleeve, such as water-draining grooves, water-guiding grooves, and water-draining plates, to quickly drain and discharge the rainwater that contacts the outer side and the top of the waterproof rubber sleeve, without accumulating rainwater, achieving the effect of quick water drainage and waterproof performance; in addition, a transparent waterproof rubber clamping cover top cover is also provided on the top of the air inlet waterproof rubber sleeve to quickly observe whether the air inlet is intake air, intuitively know the working condition of the air filter, without disassembling the air filter, which is convenient, fast, intuitive and clear. The overall air inlet waterproof rubber sleeve structure is simple, practical, safe, effectively protects the air filter and the engine, and is green and environmentally friendly.
[0036] The above are only the preferred embodiments of the present invention, and do not impose any formal restrictions on the structure of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.
Claims
1. An air inlet waterproof rubber sleeve for a motorcycle air filter, characterized in that, It includes a waterproof glue kit (3) installed on the vehicle frame (1) and located above the air filter (2); the waterproof glue kit includes a waterproof glue air intake shield (5) covering the air intake (4) of the air filter, and a waterproof glue clamping shield (6) extending outward along one end of the waterproof glue shield, clamping the outside of the air filter and covering the top of the air filter; the waterproof glue air intake shield and the waterproof glue clamping shield are an integrally connected one-piece structure; The top of the waterproof glue air intake shield is provided with an inclined water drainage mounting plate (7) arranged in an upward inclined manner, the back of the waterproof glue air intake shield is provided with a waterproof glue back plate (8) extending downward and completely covering the air intake, and the side of the waterproof glue air intake shield is provided with a waterproof glue side plate (9) extending downward and covering the air intake; a side plate water drainage groove (10) arranged in a reverse direction to the inclined water drainage mounting plate and forming an included angle state is recessed on the waterproof glue side plate; The top of the waterproof glue clamping shield is provided with a waterproof glue clamping shield top cover (11) protruding upward and in an irregular wavy shape; the waterproof glue clamping shield is arranged in a reverse direction to the inclined water drainage mounting plate and forms an obtuse angle state.
2. The waterproof rubber sleeve for the air inlet of a motorcycle air filter according to claim 1, characterized in that, The side plate water drainage groove is in the shape of a semi-circular through groove arranged on one waterproof glue side plate, and the side plate water drainage groove on the other waterproof glue side plate is a water drainage protruding skirt (12) protruding outward at the bottom of the waterproof glue side plate.
3. The intake port waterproof rubber sleeve of a motorcycle air filter according to claim 2, characterized in that, The connection position between the waterproof glue clamping shield top cover and the waterproof glue clamping shield is an arc-shaped water drainage groove (13) arranged in a downward concave manner; a water guiding sliding groove (14) extending toward the tail direction is also provided at the middle position of one outer side surface of the waterproof glue clamping shield top cover.
4. The waterproof rubber sleeve for the air inlet of a motorcycle air filter according to claim 3, characterized in that, The waterproof glue clamping shield top cover and the waterproof glue clamping shield are an integrally formed one-piece structure, and the waterproof glue clamping shield top cover is a visible transparent top cover.
5. The intake port waterproof rubber sleeve of a motorcycle air filter according to claim 4, characterized in that, Reinforcing ribs (15) protruding outward are evenly distributed on the outer side surface of the waterproof glue back plate.
6. The waterproof rubber sleeve for the air inlet of a motorcycle air filter according to claim 5, characterized in that, Mounting plate mounting holes (16) are provided on the inclined water drainage mounting plate, and the inclined water drainage mounting plate is correspondingly and matchingly installed with a vehicle frame mounting plate (20) on the vehicle frame. Vehicle frame mounting holes (17) corresponding to and matching the mounting plate mounting holes are provided on the vehicle frame mounting plate.
7. The air inlet waterproof rubber sleeve of a motorcycle air filter according to claim 6, characterized in that, The waterproof glue kit is a nitrile rubber kit with a hardness of 65 degrees.
Citation Information
Patent Citations
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CN209324550U
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CN218991749U