Motorcycle fuel tank mounting structure and motorcycle

By spanning the main body of the motorcycle fuel tank above the curved beam and setting it on both sides, the problem of the high center of gravity of the motorcycle fuel tank of the curved beam is solved, and the increase in oil storage volume and stability is achieved.

CN223253162UActive Publication Date: 2025-08-22CHONGQING DALONGYUFENG MOTORCYCLE MFG CO LTD
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Patent Information

Application Number
CN202422638237.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-08-22
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

The oil storage body of the existing curved beam motorcycle fuel tank is located above the curved beam, with a high center of gravity, resulting in a reduced overall stability.

Method used

The main body of the fuel tank is spanned above the curved beam, and the main oil storage part is set on both sides of the curved beam, and the part located above the curved beam is flat. The secondary oil tank design is cancelled and the fuel tank is moved from under the seat to the curved beam, increasing the amount of oil storage and reducing the center of gravity.

Benefits of technology

It improves the stability and oil storage capacity of the motorcycle, and at the same time increases the capacity of the storage box under the rear seat, lowers the center of gravity, and makes the overall structure more stable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of camber beam motorcycles, in particular to a motorcycle fuel tank installation structure and a motor.The motorcycle fuel tank installation structure is characterized in that a fuel tank body is arranged on a camber beam, the fuel tank body stretches across the camber beam, main fuel storage parts are arranged on the two sides of the camber beam, the parts located above the camber beam are flat, and the camber beam is a motorcycle frame main beam; vehicle body structures are arranged on the upper portion and the two sides of the oil tank body and can be used for containing the oil tank body, the oil tank body is moved forwards to a camber beam from a narrow space below a seat, the oil storage amount can be effectively increased, the oil tank body stretches across the upper portion of the camber beam, main oil storage parts are arranged on the two sides of the camber beam, and meanwhile the portion, located above the camber beam, of the oil tank body is flat. The main oil storage parts are arranged on the two sides of the camber beam, the oil storage amount is not reduced, meanwhile, the upper protruding part is reduced, the gravity center can be effectively lowered, and the stability of the whole vehicle is improved.
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Description

Technical Field

[0001] The utility model relates to the field of curved beam motorcycles, in particular to a motorcycle oil tank mounting structure and a motorcycle. Background Art

[0002] The fuel tank of a curved beam motorcycle is mostly arranged between the seat of the curved beam motorcycle and the tail end of the rear support rod of the frame. The fuel tank and the storage box are arranged side by side, both located below the seat. The fuel tank design is relatively limited, and the fuel storage capacity of the fuel tank is also relatively low. There is an existing curved beam motorcycle that has a new auxiliary fuel tank on the curved beam. The auxiliary fuel tank is placed across the curved beam, which increases the fuel storage capacity. However, the main oil storage part of this auxiliary fuel tank is located above the curved beam, and the center of gravity is higher, which reduces the overall stability. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a motorcycle fuel tank mounting structure to solve the problem that the existing fuel tank main body is located above the curved beam, the center of gravity is high, and the overall stability is reduced.

[0004] To achieve the above-mentioned purpose, the utility model provides a motorcycle fuel tank mounting structure, including setting the fuel tank body on the curved beam, the fuel tank body spanning above the curved beam, the main oil storage part being set on both sides of the curved beam, and the part located above the curved beam being flat.

[0005] The principle of the technical solution: The curved beam is the connecting beam between the front and rear wheels of a motorcycle. There is no body structure above and on both sides of the curved beam, which can be used to place the fuel tank body. Moving the fuel tank body from the narrow space under the seat to the curved beam can effectively increase the oil storage capacity. The fuel tank body spans above the curved beam, and the main oil storage parts are arranged on both sides of the curved beam. At the same time, the part of the fuel tank body located above the curved beam is flat. The main oil storage parts are arranged on both sides of the curved beam. Without reducing the oil storage capacity, the protruding part above is reduced, which can effectively lower the center of gravity and improve the stability of the entire vehicle.

[0006] Compared with the existing technology, the beneficial effects of the present invention are: 1. The fuel tank body in the present invention is located on the curved beam of the motorcycle, which is closer to the center of gravity of the whole motorcycle than the traditional setting under the seat. Moreover, since the fuel tank body spans both sides of the curved beam and the part above the curved beam is flat, it can also effectively lower the center of gravity and improve the stability during driving.

[0007] 2. Cancel the auxiliary fuel tank design and move the fuel tank to the curved beam. While increasing the fuel storage capacity, it also increases the capacity of the storage box under the rear seat of the motorcycle to accommodate more items.

[0008] As a preferred embodiment of the present invention, the oil tank body includes a first oil storage chamber and a second oil storage chamber arranged on both sides of the curved beam. The first oil storage chamber and the second oil storage chamber are connected through a connecting oil storage chamber. The connecting oil storage chamber is flat and spans above the curved beam.

[0009] The principle of the technical solution: the first oil storage chamber and the second oil storage chamber are respectively located on both sides of the curved beam, and are connected to the connecting oil storage chamber above, allowing the fuel to move freely therein, making it convenient to add and flow out; the connecting oil storage chamber is flat, reducing the protruding part above, which can effectively lower the center of gravity. At the same time, the first oil storage chamber and the second oil storage chamber on both sides are symmetrically arranged, with the curved beam as the axis of symmetry, which can play a balancing role and improve the stability of the vehicle during driving.

[0010] As a preferred embodiment of the present invention, the main parts of the first oil storage chamber and the second oil storage chamber are located on the front side of the curved beam.

[0011] Principle of the technical solution: The main parts of the first oil storage chamber and the second oil storage chamber are both located on the front side of the curved beam, which can move the center of gravity of the entire motorcycle forward, balance the weight of the driver, and make the entire motorcycle more stable.

[0012] As a preferred embodiment of the present invention, an oil filling port is provided on the first oil storage chamber, and a sealing cover is connected to the oil filling port.

[0013] The principle of the technical solution is: the oil filling port is used to add fuel, and the cover is used to close the oil filling port.

[0014] As a preferred embodiment of the present invention, the fuel tank body further comprises an extension portion provided at the rear end of the connection tank, wherein the extension portion is provided with a groove, and the extension portion is snap-fitted with the motorcycle storage box through the groove.

[0015] Beneficial effect: the groove of the extension part is concave inward, and the storage box is convex outward, and the two are engaged with each other, so that the fuel tank body is supported by the storage box, thereby improving stability.

[0016] As a preferred embodiment of the present invention, a first fixing part is provided on both sides of the fuel tank body, one end of the first fixing part is fixedly connected to the fuel tank body, and the other end is against the bent beam, the first fixing part can support the fuel tank body, the first fixing part includes a mounting sleeve that is clamped in the fuel tank body, a connecting piece is passed through the mounting sleeve, a supporting piece is provided on the inner side of the connecting piece, one end of the mounting sleeve is against the connecting piece, and the other end is against one end of the supporting piece, and the other end of the supporting piece is against the bent beam; a fixing piece is provided on the connecting piece, and the fixing piece fixes the connecting piece and the supporting piece.

[0017] Beneficial effect: The first fixing parts on both sides of the fuel tank body are used to support the fuel tank body against the curved beam and limit the left and right positions of the fuel tank body. The specific implementation method is: the connecting piece is connected to the supporting piece and the fixing piece in sequence, and one side of the supporting piece is supported on the curved beam. When the connecting piece, the mounting sleeve and the supporting piece are tightly supported, the supporting piece can be supported on the curved beam to fix the fuel tank body from the side and improve stability; the supporting pieces on both sides cooperate to limit the left and right positions of the front end of the fuel tank body, and the storage box limits the left and right positions of the rear end of the fuel tank body. The two are snap-fitted to effectively fix the left and right positions of the fuel tank body on the curved beam.

[0018] The second object of the present utility model is to provide a motorcycle, which adopts the motorcycle fuel tank mounting structure and also includes a curved beam, a storage box and a covering member, wherein the motorcycle fuel tank mounting structure is arranged on the curved beam, the storage box is arranged at the rear end of the motorcycle fuel tank mounting structure, and the covering member is arranged on the outer sides of the motorcycle fuel tank mounting structure and the storage box.

[0019] Beneficial effects: The curved beam is a common curved beam motorcycle main beam, the motorcycle fuel tank mounting structure is arranged above it, the storage box is used to accommodate items, and the cover is used to wrap and protect the motorcycle fuel tank mounting structure and the storage box. The motorcycle fuel tank mounting structure is moved from under the seat to the curved beam, which lowers the center of gravity and moves the center of gravity forward, effectively improving stability, while leaving space to increase the capacity of the storage box and facilitate storing more goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0021] Figure 1 This is a structural diagram of the motorcycle fuel tank installation structure of the present utility model.

[0022] Figure 2 This is a top view of the motorcycle fuel tank mounting structure of the present invention.

[0023] Figure 3 This is a bottom view of the motorcycle fuel tank mounting structure of the present invention.

[0024] Figure 4 This is the utility model of the motorcycle fuel tank installation structure Figure 3 A partial enlargement of detail A.

[0025] Figure 5 This is a structural schematic diagram of the first fixing member of the motorcycle fuel tank mounting structure of the present utility model.

[0026] Figure 6 This is a front view of the motorcycle fuel tank mounting structure of the present invention, with the fuel tank body hidden.

[0027] The reference numerals in the drawings of the specification include: 1 bending beam, 2 oil tank body, 21 first oil storage chamber, 22 second oil storage chamber, 23 connecting oil storage chamber, 3 extension portion, 31 groove, 32 fixing groove, 4 first fixing portion, 41 connecting member, 42 mounting sleeve, 43 supporting member, 44 fixing member, 45 supporting block, 5 second fixing portion, 51 gasket, 52 fixing bolt, 6 oil filling port, 7 sealing cover, 8 reinforcing rib. DETAILED DESCRIPTION

[0028] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply 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 on the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] Example 1

[0033] In this embodiment, the “front end” and “rear end” are based on the motorcycle, and the front end is the one closest to the front wheel of the motorcycle.

[0034] As attached Figure 1As shown, the present invention provides a motorcycle fuel tank: comprising a fuel tank body 2 arranged on the inclined section of a curved beam 1, the fuel tank body 2 spanning both sides of the curved beam 1; the rear end of the fuel tank body 2 is supported and limited left and right by the motorcycle storage box, specifically, the rear end of the fuel tank body 2 is provided with an extension 3, the extension is provided with a groove 31, the groove 31 is engaged with the front end of the motorcycle storage box, so that the fuel tank body 2 can be supported by the motorcycle storage box, the extension is upward from the front end to the rear end of the motorcycle; the fuel tank body 2 spans the curved beam 1, The extension part 3 of the fuel tank body 2 is provided with the inwardly concave groove 31, and the storage box is convex, and the two are engaged with each other; the curved beam 1 is arranged at an angle in the motorcycle, and the storage box can provide support for the fuel tank body 2, limit the front and rear positions of the fuel tank body 2, prevent the fuel tank body 2 from moving backward along the length direction of the curved beam 1, and limit the left and right positions of the fuel tank body 2; the extension part 3 is arranged at an angle, so that the storage box can provide support for the fuel tank body 2 while exerting an oblique downward force on it, pressing the fuel tank body 2 against the curved beam 1 to improve stability.

[0035] As attached Figure 1 、 Figures 3 to 5 As shown, in this embodiment, both sides of the fuel tank body 2 are provided with a first fixing part 4, and the first fixing part 4 is used to press the fuel tank body 2 against the curved beam 1 from both sides and support the fuel tank body 2; specifically, the first fixing part 4 includes a mounting sleeve 42 that is clamped in the fuel tank body 2, a connecting piece 41 is passed through the mounting sleeve 42, and a supporting piece 43 is provided on the inner side of the connecting piece 41, one end of the mounting sleeve 42 is against the connecting piece 41, and the other end is against one end of the supporting piece 43, and the other end of the supporting piece 43 is against the curved beam; a fixing piece 44 is provided on the connecting piece 41, and the fixing piece 44 fixes the connecting piece The connecting piece 41 and the supporting piece 43 are fixed, and the connecting piece 41 is threadedly connected to the mounting sleeve 42, the supporting piece 43 and the fixing piece 44 in sequence. One side of the supporting piece 43 is against the curved beam 1. When the connecting piece 41, the mounting sleeve 42 and the supporting piece 43 are tightly pressed, the supporting piece 43 can be pressed against the curved beam 1 to fix the fuel tank body 2 from the side and improve stability. The supporting pieces 43 on both sides can also limit the left and right positions of the front end of the fuel tank body 2, and the storage box limits the left and right positions of the rear end of the fuel tank body 2. The two are snap-fitted to effectively fix the left and right positions of the fuel tank body 2 on the curved beam 1.

[0036] As attached Figure 6As shown, in this embodiment, a support block 45 is fixed to the upper end of the abutment 43 for supporting the fuel tank body 2; the abutments 43 on both sides of the curved beam 1 are provided with the support blocks 45 for supporting the fuel tank body 2, sharing the pressure on the curved beam 1, and making the fuel tank body 2 more stable; or the abutment 43 can be used to directly support the fuel tank body 2; in addition, a reinforcing rib 8 is fixed on the curved beam 1, and the rear end of the reinforcing rib 8 contacts the abutment 43 to limit the abutment 43 along the length direction of the curved beam 1; the reinforcing rib 8 is used to increase the strength of the curved beam 1, and the rear end of the reinforcing rib 8 contacts the abutment 43, so that the abutment 43 cannot move toward the front end along the curved beam 1, and the rear end is restricted by the storage box, so that the fuel tank body 2 cannot move forward and backward along the curved beam 1, and the installation is more stable.

[0037] In this embodiment, the connecting member 41 includes a bolt head, a cylindrical portion and a threaded portion, wherein the cylindrical portion is solid and has a diameter larger than the threaded portion. The cylindrical portion is used to bear the main weight of the tank body 2 and is passed through the mounting sleeve 42. Compared with traditional screws, the connecting member 41 of this embodiment has a higher load-bearing capacity and can better bear the main weight of the tank body 2. At the same time, it is closely engaged with the mounting sleeve 42 to avoid shaking and improve stability.

[0038] As attached Figure 2 As shown, in this embodiment, a fixing groove 32 is provided in the extension portion 3, and a second fixing portion 5 is provided at the rear end of the fixing groove 32 for connecting the rear end of the fuel tank body 2 and the curved beam 1. The specific structure in this embodiment is: the second fixing portion 5 includes a gasket 51 and a fixing bolt 52, and the fixing bolt 52 is vertically arranged in the fixing groove 32. The fixing bolt 52 passes through the gasket 51 and is threadedly connected to the curved beam 1; the fixing bolt 52 is vertically arranged and passes through the gasket 51 and is threadedly connected to the curved beam 1, which can quickly and effectively install the rear end of the fuel tank body 2 on the curved beam 1, thereby improving stability.

[0039] As attached Figure 2As shown, in this embodiment, the fuel tank body 2 includes a first oil storage chamber 21 and a second oil storage chamber 22 arranged on both sides of the curved beam 1, the first oil storage chamber 21 and the second oil storage chamber 22 are connected by a connecting oil storage chamber 23, and the connecting oil storage chamber 23 is flat and spans above the curved beam 1, the main parts of the first oil storage chamber 21 and the second oil storage chamber 22 are located on the front side of the curved beam 1, and the first oil storage chamber 21 and the second oil storage chamber 22 are symmetrically arranged; a fuel filling port 6 is provided at the highest position of the first oil storage chamber 21, and a sealing cover 7 is connected to the fuel filling port 6; the first oil storage chamber 21 and the second oil storage chamber 22 are respectively located on both sides of the curved beam 1, and the top of each is connected to the connecting oil storage chamber 23, allowing the fuel to move freely therein, making it convenient to add fuel. and outflow; the connecting oil storage chamber 23 is flat, reducing the protruding part above, which can effectively lower the center of gravity. At the same time, the first oil storage chamber 21 and the second oil storage chamber 22 on both sides are symmetrically arranged, and with the curved beam 1 as the axis of symmetry, they can play a balancing role and improve the stability of the vehicle during driving. The main parts of the first oil storage chamber 21 and the second oil storage chamber 22 are both located on the front side of the curved beam 1, which can move the overall center of gravity of the motorcycle forward, balance the weight of the driver, and make the entire motorcycle more stable. At the same time, the two are symmetrical and are located on both sides of the curved beam 1, with the curved beam 1 as the center, forming a balanced structure, which makes the left and right of the motorcycle more stable; the fuel tank body 2 is installed on the curved beam 1, and the overall shape is inclined. The oil filling port 6 is located at its highest point, which is used to add fuel to increase the effective capacity.

[0040] In this embodiment, a covering member is provided on the outside of the fuel tank body 2. The covering member and the fuel tank body 2 are snap-fitted together. The covering member is installed to the outside of the fuel tank body 2 by screws, which can effectively cover and protect the fuel tank body 2 to avoid collision damage, etc.

[0041] In this embodiment, along the length direction of the curved beam 1: the front end of the fuel tank body 2 is restricted by the supporting member 43 of the first fixing portion 4, and the front end of the supporting member 43 is provided with the reinforcing rib 8, and the reinforcing rib 8 can resist the supporting member 43, thereby preventing the fuel tank body from moving forward along the curved beam 1; and the rear end of the fuel tank body 2 is fixed to the curved beam 1 by the fixing bolt 52 of the second fixing portion 5, and is also supported by the storage box. The groove 31 provided on the extension portion 3 is engaged with the storage box, so that the fuel tank body cannot move backward along the curved beam 1.

[0042] Along the width direction of the curved beam 1 (i.e., the left and right positions of the curved beam): the front end of the fuel tank body 2 is restricted by the first fixing parts 4 on both sides, and the rear end is restricted by the snap fit between the groove 31 and the storage box.

[0043] In summary, the multiple structures of the present invention cooperate with each other to effectively restrict the front-to-back and left-to-right directions of the fuel tank body 2, so that the installation of the fuel tank body 2 is more stable.

[0044] In this embodiment, the curved beam 1 is arranged at an angle in the motorcycle, and the fuel tank body 2 is arranged on the curved beam, which can prevent gravity from being completely squeezed on the curved beam 1 and improve the service life of the curved beam 1; since the curved beam 1 is arranged at an angle, the fuel tank body 2 has a tendency to move downward, and the groove 31 of the extension part 3 is engaged with the storage box, and there is a seat above the storage box, and the passenger sits on it, which is relatively stable as a whole and can effectively provide support for the fuel tank body 2.

[0045] In this embodiment, the fuel tank body 2 is made by rotational molding. Articles made by rotational molding have excellent negative pressure resistance and corrosion resistance, which can effectively improve the explosion-proof performance of the fuel tank.

[0046] Example 2

[0047] As attached Figure 1 As shown: On the basis of the first embodiment, a motorcycle of the present invention adopts the motorcycle fuel tank, and also includes a curved beam 1, a storage box and a covering member. The motorcycle fuel tank is arranged on the curved beam 1, and the storage box is arranged at the rear end of the motorcycle fuel tank. The outer sides of the motorcycle fuel tank and the storage box are provided with the covering member; the curved beam 1 is a common curved beam motorcycle main beam, and the motorcycle fuel tank is arranged above it. The storage box is used to accommodate items, and the covering member is used to wrap and protect the motorcycle fuel tank and the storage box. The motorcycle fuel tank is moved from under the seat to the curved beam 1, which lowers the center of gravity and moves the center of gravity forward, effectively improving stability, while leaving space to increase the capacity of the storage box for storing more goods.

[0048] The preferred embodiment of the present application is described in detail above in conjunction with the accompanying drawings. The typical well-known structures and common knowledge technologies in the preferred embodiment are not described in detail here. Ordinary technicians in the relevant field can, under the inspiration given by this embodiment, improve and implement the technical solution of the present utility model in combination with their own abilities. Some typical well-known structures, well-known methods or common knowledge technologies should not become obstacles for ordinary technicians in the relevant field to implement this application.

[0049] The scope of protection required by this application shall be based on the contents of its claims, and the contents of the utility model, specific implementation methods and the contents recorded in the drawings of the specification shall be used to interpret the claims.

[0050] Within the technical concept of this application, several modifications may be made to the specific implementation methods of this application, and these modified implementation methods should also be considered to be within the scope of protection of this application.

Claims

1. A motorcycle fuel tank mounting structure, characterized by: It includes setting the oil tank body on the curved beam, the oil tank body spans above the curved beam, the main oil storage part is set on both sides of the curved beam, and the part above the curved beam is flat; the oil tank body includes a first oil storage chamber and a second oil storage chamber set on both sides of the curved beam, the first oil storage chamber and the second oil storage chamber are connected through a connecting oil storage chamber, and the connecting oil storage chamber is flat and spans above the curved beam.

2. The motorcycle fuel tank mounting structure according to claim 1, characterized in that: The main parts of the first oil storage chamber and the second oil storage chamber are located on the front side of the curved beam.

3. The motorcycle fuel tank mounting structure according to claim 2, characterized in that: The first oil storage chamber is provided with an oil filling port, and the oil filling port is connected with a sealing cover.

4. The motorcycle fuel tank mounting structure according to claim 1, characterized in that: The oil tank body also includes an extension portion arranged at the rear end of the connecting oil tank, and a groove is provided in the extension portion, which is snap-fitted with the motorcycle storage box through the groove.

5. The motorcycle fuel tank mounting structure according to claim 4, characterized in that: A first fixing part is provided on both sides of the fuel tank body, one end of the first fixing part is fixedly connected to the fuel tank body, and the other end rests on the bent beam, the first fixing part can support the fuel tank body, the first fixing part includes a mounting sleeve clamped in the fuel tank body, a connecting piece is passed through the mounting sleeve, a supporting piece is provided on the inner side of the connecting piece, one end of the mounting sleeve rests on the connecting piece, and the other end rests on one end of the supporting piece, and the other end of the supporting piece rests on the bent beam; a fixing piece is provided on the connecting piece, and the fixing piece fixes the connecting piece and the supporting piece.

6. A motorcycle, characterized in that: The motorcycle fuel tank mounting structure according to any one of claims 1 to 5 further includes a curved beam, a storage box and a cover, wherein the motorcycle fuel tank mounting structure is arranged on the curved beam, the storage box is arranged at the rear end of the motorcycle fuel tank mounting structure, and the cover is arranged on the outer sides of the motorcycle fuel tank mounting structure and the storage box.

Citation Information

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