Gearbox intake and exhaust assembly and all terrain vehicle
By setting parallel, non-interconnected intake pipes and an intake port higher than the gearbox in the gearbox intake and exhaust assembly, the problem of uneven heat dissipation caused by airflow interference is solved, achieving stable airflow and uniform heat dissipation, thereby improving heat dissipation reliability and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SEGWAY TECH CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-02
AI Technical Summary
Existing gearbox intake and exhaust components are prone to airflow interference within the intake manifold, resulting in uneven heat dissipation and poor heat dissipation reliability.
The first and second intake pipes are arranged in parallel to form an independent intake air path to avoid airflow interference. The intake port is set higher than the gearbox to stabilize the airflow. The mesh cover and metal grille are combined to prevent impurities from entering.
It achieves stable airflow and uniform heat dissipation in the gearbox, improves heat dissipation reliability, reduces the risk of metal component corrosion, and extends service life.
Smart Images

Figure CN224315458U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of all-terrain vehicle technology, specifically to a gearbox air intake / exhaust assembly and an all-terrain vehicle. Background Technology
[0002] The transmission intake and exhaust assemblies in related technologies are mainly used to cool the transmission intake air. Some transmission intake and exhaust assemblies have at least two air inlets on one of the intake pipes to increase the air intake area, or at least two branch pipes extending from the lower end of the intake pipe to form at least two air outlets. However, the above configurations are prone to airflow interference in the intake pipe, resulting in uneven cooling of the transmission and poor cooling reliability. Utility Model Content
[0003] This utility model aims to at least partially solve one of the technical problems in the related art.
[0004] Therefore, embodiments of this utility model propose a gearbox air intake / exhaust assembly, which has the advantage of high reliability in heat dissipation for the gearbox.
[0005] An embodiment of this utility model also proposes an all-terrain vehicle.
[0006] The transmission intake and exhaust assembly of this utility model embodiment includes a first intake pipe, a second intake pipe, and an exhaust pipe. A first end of the first intake pipe is used to communicate with the intake port of the transmission, and a second end of the first intake pipe is higher than the transmission. The second intake pipe is arranged in parallel with the first intake pipe, and a first end of the second intake pipe is used to communicate with the intake port of the transmission, and a second end of the second intake pipe is higher than the transmission. A first end of the exhaust pipe is used to communicate with the exhaust port of the transmission.
[0007] According to the embodiment of the present utility model, the gearbox air intake and exhaust assembly is provided with a first air intake pipe and a second air intake pipe arranged in parallel, that is, the air intake paths formed by the two are not connected to each other. This effectively avoids airflow interference in the two air intake paths and the resulting airflow loss. The airflow into the gearbox through the two air intake paths is stable and reliable, and the heat dissipation reliability of the gearbox is high.
[0008] In some embodiments, the gearbox is provided with two air inlets, and the first end of the first air inlet pipe and the first end of the second air inlet pipe are respectively connected to the two air inlets.
[0009] In some embodiments, each of the first intake pipe and the second intake pipe includes a first pipe segment, and the two first pipe segments are connected together.
[0010] In some embodiments, the two first pipe segments are integrally formed.
[0011] In some embodiments, each of the first intake pipe and the second intake pipe further includes a second pipe segment and a third pipe segment, the second pipe segment being a flexible hose connected between the first pipe segment and the third pipe segment, and the end of the third pipe segment opposite to the second pipe segment having a connector for communicating with the air inlet of the gearbox.
[0012] In some embodiments, the two first pipe segments are arranged in a mirror-symmetrical manner, with the opposite side of the two first pipe segments open.
[0013] The gearbox intake and exhaust assembly also includes two mesh covers, which are detachably connected to the two first pipe sections and respectively cover the two openings.
[0014] In some embodiments, the mesh cover includes an injection-molded frame and a nylon mesh. The injection-molded frame is connected to the first pipe segment by fasteners. The injection-molded frame has a through hole communicating with the first pipe segment. The nylon mesh is connected to the injection-molded frame and covers the through hole.
[0015] In some embodiments, the gearbox intake and exhaust assembly further includes a metal grille connected to a second end of the exhaust pipe and located within the exhaust pipe.
[0016] The all-terrain vehicle according to an embodiment of the present invention includes a gearbox and a gearbox air intake / exhaust assembly as described in any of the above embodiments. The gearbox is provided with an air intake and an air outlet. At least one of the first air intake pipe and the second air intake pipe is connected to the air intake, and the air outlet pipe is connected to the air outlet.
[0017] The technical advantages of the all-terrain vehicle according to the present invention are the same as those of the gearbox air intake and exhaust components in the above embodiments, and will not be repeated here.
[0018] In some embodiments, the all-terrain vehicle further includes a muffler, with an opening at the end of the exhaust pipe away from the gearbox facing the muffler. Attached Figure Description
[0019] Figure 1 This is an exploded view of the gearbox intake and exhaust assembly according to an embodiment of the present invention.
[0020] Figure 2 This is a schematic diagram of the gearbox intake and exhaust assembly and the gearbox according to an embodiment of the present invention.
[0021] Figure 3 This is another schematic diagram of the gearbox intake / exhaust assembly and gearbox according to an embodiment of the present utility model.
[0022] Figure label:
[0023] 1. First intake pipe; 11. First pipe section; 111. Opening; 12. Second pipe section; 13. Third pipe section; 14. Connector; 2. Second intake pipe; 3. Exhaust pipe; 4. Mesh cover; 41. Injection molded frame; 42. Nylon mesh; 5. Metal grille; 6. Gearbox; 7. Pressure plate. Detailed Implementation
[0024] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0025] The following is combined Figures 1-3 This invention describes the gearbox intake and exhaust air assembly according to an embodiment of the present invention.
[0026] The transmission intake and exhaust assembly of this embodiment includes a first intake pipe 1, a second intake pipe 2, and an exhaust pipe 3. The first end of the first intake pipe 1 is connected to the intake port of the transmission 6, and the second end of the first intake pipe 1 is higher than the transmission 6. The second intake pipe 2 is arranged parallel to the first intake pipe 1, and its first end is connected to the intake port of the transmission 6, while its second end is higher than the transmission 6. The first end of the exhaust pipe 3 is connected to the exhaust port of the transmission 6.
[0027] According to the embodiment of the present utility model, the gearbox air intake and exhaust assembly is provided with a first air intake pipe 1 and a second air intake pipe 2 arranged in parallel, that is, the air intake paths formed by the two are not connected to each other. This effectively avoids the airflow in the two air intake paths from interfering with each other and causing airflow loss. The airflow into the gearbox 6 through the two air intake paths is stable and reliable, and the heat dissipation reliability of the gearbox 6 is high.
[0028] It should be noted that the second end of the first air intake pipe 1 and the second end of the second air intake pipe 2 are each their own air inlets. By setting the second end of the first air intake pipe 1 and the second end of the second air intake pipe 2 to be higher than the gearbox 6, it is possible to further reduce the amount of external moisture entering the gearbox 6 through the second ends of the first air intake pipe 1 and the second ends of the second air intake pipe 2 when the vehicle is in a water-filled road condition, thereby reducing the risk of accelerated corrosion of metal parts.
[0029] In some embodiments, the gearbox 6 is provided with two air inlets, and the first end of the first air inlet pipe 1 and the first end of the second air inlet pipe 2 are respectively connected to the two air inlets.
[0030] At this time, the first intake pipe 1 and the second intake pipe 2 are introduced into the gearbox 6 from different positions through two intake ports, so that the two airflows can more evenly dissipate heat from the gearbox 6, and the heat dissipation uniformity of the gearbox 6 is higher.
[0031] For example, such as Figure 1 and Figure 2 As shown, the two air inlets of the gearbox 6 are arranged in a staggered manner along the axial and radial directions of its inner output shaft, and are both located on the top wall of the gearbox 6.
[0032] In some embodiments, each of the first intake pipe 1 and the second intake pipe 2 includes a first pipe segment 11, and the two first pipe segments 11 are connected together.
[0033] By connecting two first pipe sections 11, the first intake pipe 1 and the second intake pipe 2 are relatively fixed in the position of the first pipe section 11, and the two limit each other, effectively preventing the position of the two from becoming loose and affecting the intake efficiency.
[0034] For example, a first pipe section 11 is formed at the top of each of the first air intake pipe 1 and the second air intake pipe 2, and an air inlet is formed on the first pipe section 11.
[0035] In some embodiments, the two first pipe sections 11 are integrally formed. This reduces the number of parts in the gearbox intake and exhaust assembly, resulting in higher assembly efficiency and lower cost.
[0036] For example, the two first pipe sections 11 are arranged in a mirror symmetrical manner and are integrally blow-molded.
[0037] In some embodiments, each of the first intake pipe 1 and the second intake pipe 2 further includes a second pipe section 12 and a third pipe section 13. The second pipe section 12 is a flexible hose and is connected between the first pipe section 11 and the third pipe section 13. The third pipe section 13 has a connector 14 for communicating with the air inlet of the gearbox 6 at one end opposite to the second pipe section 12.
[0038] The second pipe section 12 is designed as a flexible hose, which effectively eliminates assembly errors of the gearbox air intake and exhaust components, thereby effectively improving the connection efficiency and reliability between the gearbox air intake and exhaust components and the gearbox 6.
[0039] For example, the second pipe section 12 is a corrugated pipe and the third pipe section 13 is a blow-molded pipe. The third pipe section 13 in the first air intake pipe 1 has a different length than the third pipe section 13 in the second air intake pipe 2, so that after the two are connected to the two air intakes through the corresponding connectors 14, the air intake and exhaust components of the gearbox are more compactly arranged and more reasonably laid out on the vehicle.
[0040] In some embodiments, the two first pipe sections 11 are arranged in a mirror-symmetrical manner, with one side of the two first pipe sections 11 facing away from each other and having an opening 111. The gearbox intake and exhaust assembly also includes two mesh covers 4, which are detachably connected to the two first pipe sections 11 and respectively cover the two openings 111.
[0041] The mesh cover 4 effectively prevents rainwater, dust, and other impurities from entering the gearbox 6 through the first pipe section 11 and causing adverse effects, thus reducing the wear rate of belts and the corrosion rate of metal parts inside the gearbox 6, resulting in a longer service life for the gearbox 6. Simultaneously, the two first pipe sections 11 are provided with openings 111 on opposite sides, ensuring that outside air entering each first pipe section 11 through the openings 111 is less likely to interfere with each other, thus improving the reliability of air intake in the first intake pipe 1 and the second intake pipe 2. Furthermore, the mesh cover 4 is detachably connected to the first pipe section 11, facilitating cleaning and replacement of the mesh cover 4 and providing more reliable protection against rainwater, dust, and other impurities.
[0042] For example, such as Figures 1-3 As shown, the two first pipe sections 11 are the same size and shape, and the two mesh covers 4 are the same size and shape, and can be replaced by each other, which effectively reduces the types and costs of parts in the gearbox intake and exhaust components.
[0043] In some embodiments, the mesh cover 4 includes an injection-molded frame 41 and a nylon mesh 42. The injection-molded frame 41 is connected to the first pipe section 11 by fasteners. The injection-molded frame 41 has a through hole communicating with the first pipe section 11. The nylon mesh 42 is connected to the injection-molded frame 41 and covers the through hole.
[0044] Therefore, the connection between the injection-molded frame 41 and the first pipe section 11 is convenient and reliable, and the nylon mesh 42 can be used in various complex environments, has a long service life, and has high stability and reliability in blocking dust and rainwater.
[0045] For example, the nylon mesh 42 is a high-sealing mesh. The edge of the injection frame 41 is provided with a connecting flange on the side facing the first pipe section 11. The connecting flange is provided with a mounting hole. The first pipe section 11 is provided with a threaded hole. The fastener is a bolt. After the injection frame 41 is sleeved on the first pipe section 11 through the connecting flange, the bolt passes through the mounting hole and is threadedly connected to the threaded hole, thus realizing the installation of the mesh cover 4 on the first pipe section 11.
[0046] In some embodiments, the gearbox intake and exhaust assembly further includes a metal grille 5, which is connected to the second end of the exhaust pipe 3 and located within the exhaust pipe 3.
[0047] The metal grille 5 serves two purposes: firstly, it effectively prevents particles from falling off the gears or belts inside the gearbox 6 during high-speed operation from being splashed at high speed onto external high-temperature components through the exhaust pipe 3, thus avoiding safety hazards; secondly, it also supports the exhaust pipe 3, preventing it from being deformed by external impacts and affecting exhaust efficiency.
[0048] For example, the metal grille 5 is snapped into the air outlet pipe 3.
[0049] For example, the metal grille 5 is connected to the air outlet pipe 3 by bolts.
[0050] The all-terrain vehicle according to an embodiment of the present invention includes a gearbox 6 and a gearbox air intake / exhaust assembly as described in any of the above embodiments. The gearbox 6 is provided with an air intake and an air outlet. At least one of the first air intake pipe 1 and the second air intake pipe 2 is connected to the air intake, and the air outlet pipe 3 is connected to the air outlet.
[0051] The technical advantages of the all-terrain vehicle according to the present invention are the same as those of the gearbox air intake and exhaust components in the above embodiments, and will not be repeated here.
[0052] It should be noted that the exhaust pipe 3 is connected to the gearbox 6 via the pressure plate 7, that is, the pressure plate 7 is connected to the gearbox 6 via fasteners, and a portion of the first end of the exhaust pipe 3 is clamped between the pressure plate 7 and the gearbox 6.
[0053] In some embodiments, the all-terrain vehicle also includes a muffler, with an opening at the end of the exhaust pipe 3 away from the gearbox 6 facing the muffler.
[0054] This ensures that the air outlet of the exhaust pipe 3 blows directly onto the muffler to cool it down, thereby improving the utilization rate of the cooling gas in the gearbox 6 and effectively enhancing the performance and reliability of the all-terrain vehicle.
[0055] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0057] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0058] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0059] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0060] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.
Claims
1. A gearbox intake / exhaust assembly, characterized in that, include: A first intake pipe (1) is provided, the first end of which is connected to the intake port of the gearbox (6), and the second end of the first intake pipe (1) is higher than the gearbox (6). The second intake pipe (2) is arranged in parallel with the first intake pipe (1). The first end of the second intake pipe (2) is used to communicate with the air inlet of the gearbox (6). The second end of the second intake pipe (2) is higher than the gearbox (6). An exhaust pipe (3) is provided, the first end of which is used to connect with the exhaust port of the gearbox (6).
2. The gearbox intake and exhaust assembly according to claim 1, characterized in that, The gearbox (6) is provided with two air inlets, and the first end of the first air inlet pipe (1) and the first end of the second air inlet pipe (2) are respectively connected to the two air inlets.
3. The gearbox intake and exhaust assembly according to claim 1, characterized in that, Each of the first intake pipe (1) and the second intake pipe (2) includes a first pipe segment (11), and the two first pipe segments (11) are connected together.
4. The gearbox intake and exhaust assembly according to claim 3, characterized in that, The two first pipe sections (11) are integrally formed.
5. The gearbox intake and exhaust assembly according to claim 3, characterized in that, Each of the first intake pipe (1) and the second intake pipe (2) further includes a second pipe section (12) and a third pipe section (13). The second pipe section (12) is a flexible hose and is connected between the first pipe section (11) and the third pipe section (13). The third pipe section (13) has a connector (14) at one end opposite to the second pipe section (12) for communicating with the air inlet of the gearbox (6).
6. The gearbox intake and exhaust assembly according to claim 3, characterized in that, The two first pipe segments (11) are arranged in a mirror symmetrical manner, with the two first pipe segments (11) having an opening (111) on one side opposite to each other; The gearbox intake and exhaust assembly also includes two mesh covers (4), which are detachably connected to the two first pipe sections (11) and cover the two openings (111) respectively.
7. The gearbox intake and exhaust assembly according to claim 6, characterized in that, The mesh cover (4) includes an injection-molded frame (41) and a nylon mesh (42). The injection-molded frame (41) is connected to the first pipe section (11) by fasteners. The injection-molded frame (41) has a through hole communicating with the first pipe section (11). The nylon mesh (42) is connected to the injection-molded frame (41) and covers the through hole.
8. The gearbox intake and exhaust assembly according to claim 1, characterized in that, The gearbox intake and exhaust assembly also includes a metal grille (5), which is connected to the second end of the exhaust pipe (3) and located inside the exhaust pipe (3).
9. An all-terrain vehicle, characterized in that, Includes a gearbox (6) and a gearbox intake / exhaust assembly according to any one of claims 1-8, wherein the gearbox (6) is provided with an intake port and an exhaust port, at least one of the first intake pipe (1) and the second intake pipe (2) is connected to the intake port, and the exhaust pipe (3) is connected to the exhaust port.
10. The all-terrain vehicle according to claim 9, characterized in that, The all-terrain vehicle also includes a muffler, with the opening at the end of the exhaust pipe (3) away from the gearbox (6) facing the muffler.