Integrated bearing type motorcycle body and motorcycle
By using an integrated load-bearing body structure made of sheet metal, the problems of complexity and weight of existing motorcycle body structures are solved, which simplifies manufacturing, improves assembly efficiency and aesthetics, and meets the requirements for lightweighting.
Patent Information
- Application Number
- CN202520265939.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Existing off-road motorcycle body structures mostly use multi-pipe welding or a combination of multi-pipe welding and sheet metal, resulting in complex processes, difficult assembly, and heavy weight, which cannot meet the requirements for lightweighting.
It adopts an integrated monocoque body, with the body shell formed by sheet metal. The power system is located inside the shell, and the connection parts are fixed by welding and detachable connectors, which simplifies the manufacturing and assembly process.
It reduces manufacturing costs and assembly difficulty, improves manufacturing efficiency and aesthetics, protects the power system, and achieves lightweighting.
Smart Images

Figure CN223821873U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motorcycle technology, and in particular to an integrated load-bearing body and motorcycle. Background Technology
[0002] Off-road motorcycles are popular among young people due to their powerful engines and stylish appearance. They are a common off-road tool with excellent off-road capability. Off-road motorcycles are also very popular in off-road racing, adventure travel and leisure activities, and they can provide a thrilling riding experience on various terrains.
[0003] Existing off-road motorcycles are mainly constructed by combining a frame with sheet metal parts. The frame uses multiple welded tubular supports for connection, support, and fixation. For example, Chinese Patent No. CN221418505U discloses a two-wheeled horizontal motorcycle frame and a two-wheeled motorcycle, which includes a top tube connected to a main beam tube. A left and right beam tubes extending rearward and downward are connected to the left and right sides of the main beam tube, respectively. The left beam tube has a left tube connected to the rear of the main beam tube, and the right beam tube has a right tube connected to the rear of the main beam tube. The left and right beam tubes, main beam tubes, left and right beam tubes, and main and right beam tubes respectively form triangular structures. The motorcycle frame in this application uses multi-tube connections. Chinese Patent No. CN221757660U discloses an off-road motorcycle whose frame is composed of multi-tube welding and sheet metal connections.
[0004] The following problems exist with existing technologies:
[0005] Most existing motorcycle body structures use the aforementioned multi-tube welding or a combination of multi-tube welding and sheet metal. This type of body structure is complex to manufacture and difficult to assemble. It also requires consideration of the motorcycle's power system installation layout, which results in a less compact motorcycle structure. In addition, the multi-tube welded frame increases the overall weight of the motorcycle, failing to meet the growing demand for lightweight off-road motorcycles. Utility Model Content
[0006] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an integrated load-bearing body and motorcycle to solve the problem of bulky body structure in the prior art.
[0007] To achieve the above and other related objectives, this utility model provides an integrated load-bearing body for a motorcycle body. The integrated load-bearing body includes a body shell formed by sheet metal, and an installation space is formed within the body shell. The motorcycle's power system is located within the installation space.
[0008] Optionally, the sheet metal includes a left forming plate and a right forming plate, which are welded together to form the vehicle body shell.
[0009] Optionally, the plate has a first connecting portion and a second connecting portion, the first connecting portion being used to connect with the front frame of the motorcycle, and the second connecting portion being used to connect with the rear frame of the motorcycle.
[0010] Optionally, the first connecting portion is located at the front end of the plate, and the first connecting portion is a continuously provided connecting edge, the connecting edge including a first edge and a second edge, the first edge being straight and the second edge being arc-shaped.
[0011] Optionally, the second connecting part includes a first connecting plate and a second connecting plate. The first connecting plate is provided with a first connecting member, and the second connecting plate is provided with a second connecting member. The first connecting member and the second connecting member can be detachably connected to the tailstock, respectively.
[0012] Optionally, the vehicle body shell is provided with a heat dissipation channel from front to back, the heat dissipation channel is connected to the installation space, and the vehicle body shell forms an exposed groove.
[0013] Optionally, the left forming plate and / or the right forming plate are provided with a lower enclosure plate, the lower enclosure plate is integrally formed with the plate, the lower enclosure plate has multiple connecting holes, a through opening is formed between the lower enclosure plate and the plate, and the through opening communicates with the installation space.
[0014] Optionally, the vehicle body also includes a covering structure, the covering structure including a covering plate and a connecting frame, the connecting frame being fixed to the plate, the covering plate being fixedly connected to the connecting frame, the covering plate and the connecting frame covering the through opening, and the connecting frame being provided with multiple fixing strips.
[0015] Optionally, the connecting frame is provided with a mudguard, and a heat dissipation cavity is formed between the mudguard and the connecting frame. The heat dissipation cavity is connected to the exposed groove, and a connecting groove is provided between adjacent fixing strips. The heat dissipation cavity is connected to the installation space through the connecting groove.
[0016] This utility model also proposes a motorcycle that includes the aforementioned integrated monocoque chassis.
[0017] As described above, the integrated load-bearing body and motorcycle proposed in this utility model have the following beneficial effects:
[0018] (1) In this utility model, since the body structure is directly formed by sheet metal, there is no need to use multi-pipe welding to form the body. The manufacturing process is optimized, the manufacturing cost of the body is reduced, the manufacturing efficiency of the body is higher, and the process of assembling the body onto the front frame is simplified, thus improving the assembly efficiency.
[0019] (2) In this utility model, since the body structure is directly formed by sheet metal, there is no need to use multi-pipe welding to form the body. The manufacturing process is optimized, the manufacturing cost of the body is reduced, the manufacturing efficiency of the body is higher, and the process of assembling the body onto the front frame is simplified, thus improving the assembly efficiency.
[0020] (3) In this utility model, the power system can be directly installed into the installation space formed inside the body shell by the body shell which is directly surrounded by plates. The body shell can cover the power system. Compared with the power system being exposed on the body in the prior art, this invention can protect the power system, improve the service life of the power system, and ensure the normal operation of the power system.
[0021] (4) In this utility model, the power system is set inside the body shell directly by the body shell made of sheet metal, which is more beautiful in appearance. The entire body structure has no redundant exposed structure, which improves the aesthetic performance of the motorcycle. Attached Figure Description
[0022] Figure 1 The diagram shown is a structural schematic of the vehicle body in one embodiment of this utility model.
[0023] Figure 2 The image shown is an exploded view of the vehicle body in one embodiment of this utility model;
[0024] Figure 3 The image shown is a cross-sectional view of the vehicle body in one embodiment of this utility model;
[0025] Figure 4 The diagram shown is a schematic representation of the installation structure of the vehicle body and the power system in one embodiment of this utility model.
[0026] Figure 5 The diagram shows the interaction between the vehicle body and the controller in one embodiment of this utility model.
[0027] Figure 6 The diagram shown is a structural schematic of a motorcycle according to one embodiment of the present invention.
[0028] Explanation of reference numerals in the attached figures:
[0029] Body shell 1, left forming plate 101, right forming plate 102, first connecting part 103, first connecting plate 104, first connecting piece 105, bolt 106, installation space 107, exposed groove 108, lower panel 109, through opening 110, connecting hole 111, air inlet 112, covering structure 2, connecting frame 201, fixing strip 202, covering plate 203, mudguard 204, connecting groove 205, heat dissipation cavity 206, battery 3, controller 4, heat dissipation side 401, motor 5, swingarm assembly 6, swingarm shaft 7, bearing assembly 8, front frame 9, front wheel 10, rear wheel 11. Detailed Implementation
[0030] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.
[0031] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components related to this utility model and are not drawn according to the actual number, shape, and size of the components in implementation. In actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex. The structures, proportions, sizes, etc., shown in the accompanying drawings are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0032] like Figures 1-6 As shown, this utility model proposes an integrated load-bearing body and motorcycle.
[0033] In an exemplary embodiment, an integrated monocoque body is used as the body of a motorcycle. The integrated monocoque body includes a body shell 1 formed by sheet metal, and an installation space 107 is formed within the body shell 1. The motorcycle's power system is located within the installation space 107.
[0034] Because the entire vehicle body structure is directly formed from sheet metal, eliminating the need for multi-tube welding, the manufacturing process is optimized, reducing manufacturing costs and increasing efficiency. Furthermore, the process of assembling the body onto the front frame 9 is simplified, improving assembly efficiency.
[0035] In this embodiment, the power system can be directly installed into the mounting space 107 formed inside the body shell 1 by means of a body shell 1 formed directly by sheet metal. The body shell 1 can cover the power system. Compared with the prior art where the power system is exposed on the body, the present invention can protect the power system, extend its service life, and ensure its normal operation. At the same time, in this embodiment, by directly enclosing the power system inside the body shell 1 by means of a body shell 1 formed directly by sheet metal, the appearance is more aesthetically pleasing. The entire body structure has no redundant exposed structures, improving the aesthetic performance of the motorcycle.
[0036] It is worth noting that when the motorcycle body in this embodiment is used as a motorcycle, the body is connected to the front frame 9 and the swing fork assembly 6, thereby enabling the motorcycle to be assembled as a whole. Specifically, the front end of the body has a connecting part, which is fixed by welding to the front frame 9 to achieve a stable connection between the front frame 9 and the body. The swing fork assembly 6 is fixed to the body shell 1 by detachably connecting to the swing fork shaft 7 on the body shell 1. The swing fork assembly 6 is mainly used to fix the rear wheel 11 of the motorcycle. At the same time, since the overall body structure in this embodiment is a plate structure, it is more convenient to connect with the swing fork assembly 6, thus improving the assembly efficiency.
[0037] It should also be noted that in this embodiment, a bearing assembly 8 is provided between the flat fork assembly 6 and the flat fork shaft 7.
[0038] It should also be noted that in this embodiment, the sheet metal is cold-formed. Specifically, the body shell 1 in this embodiment is made of duplex steel by stamping. The stamping process ensures the smoothness and processing accuracy of the sheet metal surface, resulting in a better overall appearance and higher processing accuracy compared to hot forming. For example, the sheet metal material in this embodiment can be HC / DPD duplex steel for cold forming, which has high strength and light weight, meeting the lightweight requirements of motorcycles while ensuring the strength of the body.
[0039] It should also be noted that, in this embodiment, in addition to the materials mentioned above, other materials with the same or similar properties can be used for processing to achieve the same structural strength.
[0040] In an exemplary embodiment, the sheet metal includes a left forming plate 101 and a right forming plate 102, which are welded together to form a vehicle body shell 1.
[0041] In this embodiment, the vehicle body shell 1 is formed by connecting two molding plates, a left molding plate 101 and a right molding plate 102. The two molding plates surround each other to form the vehicle body shell 1 and form an installation space 107.
[0042] For example, in this embodiment, the left forming plate 101 and the right forming plate 102 are formed by stamping two identical sheet metal pieces. They can also be adapted to meet the needs of the motorcycle by increasing or decreasing the number of sheet metal pieces to achieve connection with various components.
[0043] In an exemplary embodiment, the plate has a first connecting portion 103 and a second connecting portion. The first connecting portion 103 is used to connect with the front frame 9 of a motorcycle, on which a front wheel 10 is provided. The second connecting portion is used to connect with the tail frame of the motorcycle.
[0044] In this embodiment, the first connecting part 103 and the second connecting part are provided to quickly assemble the body shell 1 onto the motorcycle. The first connecting part 103 is used to fix the motorcycle's front frame 9, and the second connecting part is used to detachably connect the motorcycle's tail frame.
[0045] For example, in this embodiment, the connecting part is formed by connecting the front ends of the left molding plate 101 and the right molding plate 102. The front end of the connecting part is arranged obliquely upward for connecting with the front frame 9. Specifically, the connecting part is a continuously arranged connecting edge, which includes a first edge and a second edge. The first edge is a straight edge, and the second edge is an arc edge to adapt to the front frame 9.
[0046] For example, in this embodiment, the left forming plate 101 and the right forming plate 102 are welded and fixed by the connecting part, specifically by laser welding. During welding, the top and bottom of the left forming plate 101 and the right forming plate 102 are fixed, which can realize the fixation of the first forming plate and the second forming plate. Therefore, the welding process takes less time and can realize the rapid connection of the first forming plate and the second forming plate.
[0047] It is worth noting that in this embodiment, in order to simplify the process, the left forming plate 101 and the right forming plate 102 are not connected except for the connecting part, which makes the assembly of the car body more convenient and also makes it easier for other parts to be installed in the car body shell 1, thus improving the assembly efficiency.
[0048] In an exemplary embodiment, the second connecting part includes a first connecting plate 104 and a second connecting plate. The first connecting plate 104 is provided with a first connecting member 105, and the second connecting plate is provided with a second connecting member. The first connecting member 105 and the second connecting member can be detachably connected to the tailstock, respectively.
[0049] In this embodiment, the first connecting plate 104 and the second connecting plate enable quick positioning and quick assembly / disassembly of the tail rack and the body shell 1. The use of two connecting plates to connect with the tail rack increases the connection strength and prevents the tail rack from shaking. In this embodiment, the first connecting plate 104 and the second connecting plate extend into the installation space 107 and are set perpendicular to the body shell 1.
[0050] For example, in this embodiment, the first connecting plate 104 is disposed on the left forming plate 101 and the second connecting plate is disposed on the right forming plate 102, and the two are symmetrically arranged with respect to the vehicle body shell 1, thereby effectively ensuring the connection effect of the tail rack.
[0051] For example, in this embodiment, the first connecting plate 104 is integrally formed with the left forming plate 101, and the second connecting plate is integrally formed with the right forming plate 102. Since both the first forming plate and the second forming plate are cold-formed from sheet metal, the first connecting plate 104 and the second connecting plate can be formed simultaneously during processing, which improves the process.
[0052] In another embodiment, the first connecting plate 104 is detachably connected to the left forming plate 101, and the second connecting plate is detachably connected to the right forming plate 102. The first connecting plate 104 and the second connecting plate are detachably mounted on the plate, so that only the first connecting plate 104 and / or the second connecting plate can be replaced if the first connecting plate 104 and / or the second connecting plate is damaged.
[0053] For example, in this embodiment, after the tailstock is connected to the first connecting plate 104, it is fixed by bolts 106 passing through the first connecting plate 104 and then by installing nuts. The first connecting piece 105 is located between the nut and the first connecting plate 104, which acts as a washer and increases the contact area to prevent wear on the first connecting plate 104. After the bolts 106 and the nut are connected, the nut presses the first connecting piece 105 against the first connecting plate 104. Similarly, the fixing method of the second connecting piece to the second connecting plate is the same as the fixing method of the first connecting piece 105 to the first connecting plate 104.
[0054] In this embodiment, the first connecting plate 104 and the second connecting plate have the same shape, function, and installation method. The attached drawings only show the structure of the first connecting plate 104 and the first connector 105, while the structure of the second connecting plate and the second connector is omitted.
[0055] It is worth noting that, in order to increase the connection strength between the body shell 1 and the tail rack, other connection structures can also be set to connect the body and the tail rack.
[0056] In an exemplary embodiment, the vehicle body shell 1 is provided with a heat dissipation channel from front to back, the heat dissipation channel is connected to the mounting space 107, and the vehicle body shell 1 forms an exposed groove 108.
[0057] In this embodiment, by setting a heat dissipation channel on the body shell 1, the power system can be cooled during operation. Since in this embodiment, the body shell 1 is only connected at the connecting part and not at other parts, when the motorcycle moves forward, air will quickly pass through the mounting space 107 from the front of the body shell 1 and be discharged from the rear of the body shell 1. Therefore, this path forms a heat dissipation channel, which is beneficial for cooling the motorcycle's power system.
[0058] For example, in this embodiment, after the left molding plate 101 and the right molding plate 102 in the body shell 1 are connected, an exposed groove 108 is formed. The heat dissipation channel is from the exposed groove 108 to the rear of the body shell 1. When the controller 4 in the power system is installed, the heat dissipation side 401 (i.e., the front side) of the controller 4, which is mainly used for heat dissipation, extends out from the exposed groove 108, making it exposed in the exposed groove 108. When the motorcycle moves forward, the cold air directly contacts the controller 4, directly dissipating heat from the controller 4. In this embodiment, the inlet end of the heat dissipation channel is the opening of the exposed groove 108. Since the rear of the body shell 1 is open and can be directly connected to the external environment, the outlet end is the rear of the body shell 1. An air inlet 112 is provided at the front of the body shell 1, located below the connecting part. The air inlet 112 faces upward and communicates with the mounting space 107. Air can enter the mounting space 107 through the air inlet 112 and finally exit from the rear of the body shell 1, thereby increasing the air intake of the heat dissipation channel and continuously cooling the power system within the mounting space 107 during motorcycle operation. In this embodiment, the airflow direction is... Figure 3 The arrow direction is shown.
[0059] In an exemplary embodiment, a lower enclosure plate 109 is provided on the left molding plate 101 and / or the right molding plate 102. The lower enclosure plate 109 is integrally formed with the plate. A plurality of connecting holes 111 are opened on the lower enclosure plate 109. A through opening 110 is formed between the lower enclosure plate 109 and the plate. The through opening 110 communicates with the installation space 107.
[0060] In this embodiment, the real-time status of the power system inside the vehicle body shell 1 can be observed through the lower enclosure 109 and the through opening 110 formed between the lower enclosure 109 and the sheet metal, and simple maintenance and upkeep can be performed.
[0061] In an exemplary embodiment, the vehicle body further includes a covering structure 2, which includes a covering plate 203 and a connecting frame 201. The connecting frame 201 is fixed on the plate, and the covering plate 203 is fixedly connected to the connecting frame 201. The covering plate 203 and the connecting frame 201 cover the through opening 110, and the connecting frame 201 is provided with a plurality of fixing strips 202.
[0062] In this embodiment, the covering plate 203 and the connecting frame 201 can cover the through opening 110 to prevent dust, dirt and other pollutants from entering the body shell 1. When needed, the covering plate 203 can be removed to check the condition inside the body shell 1. Furthermore, the multiple fixing strips 202 provided on the connecting frame 201 can strengthen the connection between the left forming plate 101 and the right forming plate 102, thereby improving the strength of the body.
[0063] For example, in this embodiment, the connecting frame 201 is welded and fixed to the plate. When the plate is a left forming plate 101 and a right forming plate 102, the connecting frame 201 is provided on both the left forming plate 101 and the right forming plate 102. The covering plate 203 is detachably connected to the plate. Specifically, it is connected by screws, which makes it easy to assemble and disassemble the covering plate 203.
[0064] For example, the connecting frame 201 is provided with a mudguard 204, which seals the front and bottom of the body shell 1 to prevent excessive dust and dirt from entering the body shell 1. A heat dissipation cavity 206 is formed between the mudguard 204 and the connecting frame 201. The heat dissipation cavity 206 is generally L-shaped and communicates with the exposed groove 108. The exposed groove 108 is used to install the controller 4. Therefore, one end of the heat dissipation cavity 206 is in direct contact with the controller 4, and the other end of the heat dissipation cavity 206 leads to the rear of the body shell 1 and communicates with the external environment. Therefore, the heat dissipation cavity 206 can also achieve direct heat dissipation of the radiator.
[0065] It is worth noting that each of the adjacent fixing strips 202 is provided with a connecting groove 205, which can connect the heat dissipation cavity 206 and the installation space 107 inside the body shell 1, thereby enabling heat dissipation for the battery 3 and motor 5 inside the body shell 1.
[0066] It should also be noted that in this embodiment, the exposed slot 108, heat dissipation cavity 206 and air inlet 112 can improve the heat dissipation effect of the motorcycle. Compared with the existing three-electric system which is in direct contact with the external environment for heat dissipation, the three components work together to achieve the same heat dissipation effect in this embodiment. At the same time, most of the power system is located inside the installation space 107, which can avoid the power system from direct contact with the external environment, thereby protecting the power system and improving the dirt resistance of the power system when the motorcycle is running.
[0067] This utility model also proposes a motorcycle that includes the aforementioned integrated monocoque chassis.
[0068] In summary, this utility model, through its integrated load-bearing body, eliminates the traditional frame and body structure, directly forming the body shell 1 from sheet metal. This simplifies the manufacturing process, improves assembly efficiency, enhances the aesthetics of the body, reduces costs, and makes the motorcycle lighter.
[0069] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. An integrated load-bearing body for a motorcycle, characterized in that, The integrated load-bearing body includes a body shell formed by a plate, and an installation space is formed in the body shell, and a power system of the motorcycle is located in the installation space.
2. The unibody vehicle body of claim 1, wherein: The plate includes a left forming plate and a right forming plate, and the left forming plate and the right forming plate are welded to form the body shell.
3. The unibody vehicle body of claim 1, wherein: The plate has a first connecting portion and a second connecting portion, the first connecting portion is used for connecting with a front frame of the motorcycle, and the second connecting portion is used for connecting with a tail frame of the motorcycle.
4. The unibody vehicle body of claim 3, wherein: The first connecting portion is located at a front end of the plate, and the first connecting portion is a continuously arranged connecting edge, the connecting edge includes a first edge and a second edge, the first edge is linear, and the second edge is circular arc-shaped.
5. The unibody vehicle body of claim 4, wherein: The second connecting portion includes a first connecting plate and a second connecting plate, the first connecting plate is provided with a first connecting piece, the second connecting plate is provided with a second connecting piece, and the first connecting piece and the second connecting piece can be respectively used for detachable connection with the tail frame.
6. The unibody vehicle body of claim 2, wherein: The body shell is provided with a front-to-back heat dissipation channel, the heat dissipation channel is communicated with the installation space, and the body shell is formed with an exposed groove.
7. The unibody vehicle body of claim 6, wherein: The left forming plate and / or the right forming plate are provided with a lower surrounding plate, the lower surrounding plate is integrally arranged with the plate, a plurality of connecting holes are opened in the lower surrounding plate, a through opening is formed between the lower surrounding plate and the plate, and the through opening is communicated with the installation space.
8. The unibody vehicle body of claim 7, wherein: The body further includes a cladding structure, the cladding structure includes a cladding plate and a connecting frame, the connecting frame is fixed on the plate, the cladding plate is fixedly connected with the connecting frame, the cladding plate and the connecting frame cover the through opening, and a plurality of fixing strips are arranged on the connecting frame.
9. The unibody vehicle body of claim 8, wherein: A fender is arranged on the connecting frame, a heat dissipation cavity is formed between the fender and the connecting frame, the heat dissipation cavity is communicated with the exposed groove, a communication groove is arranged between adjacent fixing strips, and the heat dissipation cavity is communicated with the installation space through the communication groove.
10. A motorcycle characterized by the fact that: An integrated load-bearing body is provided, and the integrated load-bearing body includes the integrated load-bearing body as claimed in any one of claims 1-9.
Citation Information
Patent Citations
Two-wheeled horizontal motorcycle frame and two-wheeled motorcycle
CN221418505U
Cross-country motorcycle
CN221757660U