Frame and vehicle

Abstract

The utility model discloses a frame and a vehicle, which comprise a main boundary beam, a longitudinal beam, a flat fork beam and an auxiliary boundary beam, the longitudinal beam is directly or indirectly connected with the main boundary beam, the flat fork beam is connected with the longitudinal beam, the flat fork beam is used for being connected with a flat fork, and the auxiliary boundary beam is respectively connected between the main boundary beam and the longitudinal beam. The frame is provided with the auxiliary boundary beams, power output of the bottom fork can be effectively transmitted to the main boundary beams by means of the auxiliary boundary beams, it is guaranteed that the power is evenly and stably output to the whole vehicle, and operability of the whole vehicle is more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field, concretely relates to a vehicle frame and a vehicle. BACKGROUND

[0002] Two-wheeled vehicles such as electric vehicles, motorcycles and the like are often used as the main means of transport for short-distance travel due to their convenience of operation and use. However, the connection between the side tube and the rear fork of the frame of the two-wheeled vehicle in the prior art is far apart, so that the power output of the rear wheel cannot be effectively transmitted to the side tube, which is not conducive to the stable output of power to the whole vehicle, and also reduces the overall operation stability. SUMMARY

[0003] The utility model aims at solving one of the technical problems in the related art at least to some extent.

[0004] Therefore, the utility model embodiment provides a frame, which is provided with a secondary side beam, so that the power output of the fork can be effectively transmitted to the primary side beam through the secondary side beam, ensuring the stable output of power to the whole vehicle, and making the operation of the whole vehicle more stable.

[0005] The utility model embodiment further provides a vehicle comprising the frame.

[0006] The frame of the utility model embodiment comprises:

[0007] a primary side beam;

[0008] a longitudinal beam and a fork beam, the longitudinal beam being directly or indirectly connected to the primary side beam, and the fork beam being connected to the longitudinal beam, and the fork beam being used to be connected to a fork;

[0009] a secondary side beam, the secondary side beam being connected between the primary side beam and the longitudinal beam.

[0010] In some embodiments, a cross beam is included, the secondary side beams are arranged in pairs, the cross beam is connected to the primary side beam, and the top end of the longitudinal beam is connected to the cross beam.

[0011] In some embodiments, the end of each secondary side beam is connected to the primary side beam or the longitudinal beam through a wrapping piece.

[0012] In some embodiments, the wrapping piece comprises a first connecting portion and a second connecting portion connected to each other, the first connecting portion is connected to the primary side beam or the longitudinal beam, and the second connecting portion is wrapped around the outer circumferential side of the secondary side beam.

[0013] In some embodiments, the plurality of the packet plates comprises a first packet plate and a second packet plate, the first packet plate is connected between the auxiliary side beam and the main side beam, and the second packet plate is arranged at the included angle formed by the auxiliary side beam and the longitudinal beam, and the first connecting portion of each of the second packet plates forms a triangular structure with the auxiliary side beam and the longitudinal beam.

[0014] In some embodiments, the two auxiliary side beams are a first side beam and a second side beam respectively, and the connection between the first side beam and the longitudinal beam is higher than the connection between the second side beam and the longitudinal beam.

[0015] In some embodiments, the connection between the first side beam and the longitudinal beam is not higher than the connection between the second side beam and the longitudinal beam.

[0016] In some embodiments, the first connecting portion of the second packet plate at the connection between the first side beam and the longitudinal beam is located on either side of the first side beam, and the first connecting portion of the second packet plate at the connection between the second side beam and the longitudinal beam is located on either side of the second side beam.

[0017] In some embodiments, the first side beam is provided with a connecting portion for connecting with a foot support, and the second side beam is used for connecting with a chain.

[0018] In some embodiments, the longitudinal beam is provided with a lug, the lug is provided with a fitting hole, and the flat fork beam is fitted in the fitting hole.

[0019] In some embodiments, the lug is provided with a plurality of lugs, the plurality of lugs are arranged at intervals along the width direction of the frame, the fitting holes of the plurality of lugs are arranged opposite to each other along the width direction, and the flat fork beam passes through the fitting hole of each lug.

[0020] And / or, the flat fork beam is screwed into the fitting hole.

[0021] In some embodiments, the main side beam, the longitudinal beam, the flat fork beam and the auxiliary side beam are all tubular structures.

[0022] And / or, the radial dimension of the main side beam is greater than the radial dimension of the auxiliary side beam, and the radial dimension of the longitudinal beam is greater than the radial dimension of the main side beam.

[0023] And / or, the cross section of the auxiliary side beam is circular or elliptical.

[0024] And / or, the auxiliary side beam is circular arc-shaped.

[0025] And / or, the auxiliary side beam and the main side beam, and the auxiliary side beam and the longitudinal beam are all welded.

[0026] And / or, the flat fork beam is connected with the rear flat fork of the vehicle.

[0027] The vehicle according to the embodiment of the utility model comprises the frame as described in any one of the above embodiments.

[0028] Beneficial effect: the frame and the vehicle according to the embodiment of the utility model, the frame is provided with the vice side beam, the power output of the flat fork can be effectively conducted to the main side beam by virtue of the vice side beam, the stable output of the power of the whole vehicle is guaranteed, and the operability of the whole vehicle is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is the left side three-dimensional schematic view of the frame according to the embodiment of the utility model.

[0030] Figure 2 It is the left rear side three-dimensional schematic view of the frame according to the embodiment of the utility model.

[0031] Figure 3 It is the right rear side three-dimensional schematic view of the frame according to the embodiment of the utility model.

[0032] Figure 4 It is the assembly schematic view of the frame and the flat fork according to the embodiment of the utility model.

[0033] REFERENCE SIGNS:

[0034] 100-frame;

[0035] 1-main side beam;

[0036] 2-longitudinal beam;

[0037] 3-flat fork beam;

[0038] 4-vice side beam;41-first side beam;411-connection part;42-second side beam;

[0039] 5-cross beam;

[0040] 6-enclosure;61-first connection part;62-second connection part;63-first enclosure;64-second enclosure;

[0041] 7-lug;71-assembly hole;

[0042] 200-rear flat fork. DETAILED DESCRIPTION

[0043] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0044] As Figure 1As shown, the frame 100 of the embodiment of the utility model includes main side beam 1, longitudinal beam 2, flat fork beam 3 and vice side beam 4.

[0045] Main side beam 1 is relatively arranged in the width direction of frame 100. For example, as shown in the figure, Figure 1 The width direction of frame 100 can be left-right direction, and two main side beams 1 can be relatively arranged in left-right direction, and main side beam 1 is generally mirror-symmetrical. Each main side beam 1 can be generally V-shaped structure, that is, each main side beam 1 can first extend downward, then extend backward, then extend upward obliquely, and finally extend backward again.

[0046] Longitudinal beam 2 is relatively located between main side beam 1, flat fork beam 3 is connected with longitudinal beam 2, and flat fork beam 3 is used for being connected with flat fork. For example, as shown in the figure, Figure 1 In left-right direction, longitudinal beam 2 can be located between main side beam 1, and longitudinal beam 2 can be arranged along up-down direction, and the top end of longitudinal beam 2 can be directly or indirectly connected with main side beam 1. Optionally, when the width size of longitudinal beam 2 in left-right direction is large, the two sides of the top end of longitudinal beam 2 can be directly contacted and connected with main side beam 1. Optionally, longitudinal beam 2 can also be indirectly connected with main side beam 1 through some additional beams, rods and the like.

[0047] Flat fork beam 3 can be horizontally arranged, flat fork beam 3 can be fixed at the rear side of longitudinal beam 2, and flat fork beam 3 can be located at the middle section of longitudinal beam 2 in up-down direction. When assembling, flat fork beam 3 can be connected with the flat fork (cantilever, rocker arm) of the vehicle, so that the use requirement of assembling the wheel is met through flat fork beam 3.

[0048] Vice side beam 4 is relatively arranged in the width direction, and vice side beam (4) can be arranged in pairs (for example, two, four or the like), and vice side beam 4 is connected between main side beam 1 and longitudinal beam 2. For example, as shown in the figure, Figure 1 Vice side beam 4 can be relatively arranged in left-right direction, and each vice side beam 4 can first extend in front-rear direction, and then can be bent to the inner side of frame 100. Vice side beam 4 can be arranged at the rear side of main side beam 1, and the front end of each vice side beam 4 can be connected and fixed with corresponding main side beam 1, and the rear end (inner end towards the inner side of frame 100) of each vice side beam 4 can be connected and fixed with longitudinal beam 2.

[0049] When using, the generated force of the wheel can act on flat fork beam 3, and then the force can be conducted to vice side beam 4 and longitudinal beam 2 through flat fork beam 3, and finally can be transmitted to main side beam 1.

[0050] The frame 100 of the embodiment of the utility model is provided with vice side beam 4, the power output of flat fork can be effectively conducted to main side beam 1 through vice side beam 4, the stable output of power to the whole vehicle is ensured, and the operability of the whole vehicle is more stable.

[0051] Secondly, the added sub-side beams 4 can also increase the structural strength between the flat fork and the main side beams 1, and fully meet the needs of force transmission and load bearing.

[0052] In some embodiments, the frame 100 comprises cross beams 5 connected between the main side beams 1, and the top ends of the longitudinal beams 2 are connected to the cross beams 5. For example, as shown in Figure 2 The cross beams 5 can be arranged horizontally, and the left and right ends of the cross beams 5 can be connected and fixed to the corresponding main side beams 1 by welding. The longitudinal beams 2 can be arranged below the cross beams 5, and the top ends of the longitudinal beams 2 can be connected and fixed to the corresponding cross beams 5 by welding. Thus, the connection and fixation of the longitudinal beams 2 and the main side beams 1 are facilitated.

[0053] In some embodiments, the end of each sub-side beam 4 is connected to the main side beam 1 or the longitudinal beam 2 by a cladding sheet 6. For example, as shown in Figure 2 Each sub-side beam 4 can include a first end facing the front side and a second end facing the inner side of the frame 100, the first end of each sub-side beam 4 can be connected to the main side beam 1 by a cladding sheet 6, and the second end of each sub-side beam 4 can be connected to the longitudinal beam 2 by another cladding sheet 6.

[0054] The cladding sheet 6 can specifically include a tile-like or sleeve-like structure, which can be wrapped around the outer circumferential side of the sub-side beam 4, thereby ensuring the connection structural strength with the sub-side beam 4. The cladding sheet 6 itself can be connected and fixed to the main side beam 1, the sub-side beam 4, or the longitudinal beam 2 by welding.

[0055] The cladding sheet 6 can enhance the connection structural strength between the two of the main side beams 1, the sub-side beams 4, and the longitudinal beams 2, thereby avoiding the problems of insufficient welding strength and easy damage caused by direct welding between the two, and fully meeting the needs of load bearing and force transmission.

[0056] In some embodiments, the cladding sheet 6 comprises a first connecting portion 61 and a second connecting portion 62 connected together, the first connecting portion 61 is connected to the main side beam 1 or the longitudinal beam 2, and the second connecting portion 62 is wrapped around the outer circumferential side of the sub-side beam 4.

[0057] For example, as shown in Figure 2As shown, the cladding sheet 6 can be divided into two parts according to different functions, and the two parts are a first connecting part 61 and a second connecting part 62, which can be integrally formed. The first connecting part 61 can be in a beam shape, an angle plate shape, or the like, and can be directly connected and fixed to the main side beam 1 or the longitudinal beam 2 by welding. The second connecting part 62 can be in a tile shape, and can be wrapped around the outer circumferential side of the auxiliary side beam 4, thereby ensuring the adhesion of the cladding sheet 6 and the auxiliary side beam 4 and enhancing the limiting effect on the auxiliary side beam 4, so as to further improve the structural strength of the connection.

[0058] In some embodiments, the plurality of cladding sheets 6 includes first cladding sheets 63 and second cladding sheets 64. The first cladding sheets 63 are connected between the auxiliary side beam 4 and the main side beam 1, and the second cladding sheets 64 are arranged at the included angle formed by the auxiliary side beam 4 and the longitudinal beam 2. The first connecting part 61 of each second cladding sheet 64 forms a triangular structure with the auxiliary side beam 4 and the longitudinal beam 2.

[0059] For example, as shown in FIG. 1, Figure 3 The cladding sheet 6 can be divided into first cladding sheets 63 and second cladding sheets 64 according to different installation positions. The first cladding sheets 63 can be the cladding sheets 6 connected to the first end of the auxiliary side beam 4, and the second cladding sheets 64 can be the cladding sheets 6 connected to the second end of the auxiliary side beam 4.

[0060] The first connecting part 61 of each first cladding sheet 63 can be directly welded and fixed to the corresponding side of the main side beam 1, and the second connecting part 62 of each first cladding sheet 63 can be wrapped around the outer circumferential side of the first end of the corresponding auxiliary side beam 4.

[0061] As shown in FIG. 1, Figure 3 The second end of each auxiliary side beam 4 can extend along the left-right direction, and the second end and the longitudinal beam 2 are arranged substantially perpendicularly, that is, the included angle formed by the second end of each auxiliary side beam 4 and the longitudinal beam 2 can be a right angle.

[0062] Each second cladding sheet 64 can be installed in the included angle formed by the corresponding auxiliary side beam 4 and the longitudinal beam 2. The second connecting part 62 of each second cladding sheet 64 can be wrapped around the outer circumferential side of the second end of the corresponding auxiliary side beam 4, and the first connecting part 61 of each second cladding sheet 64 can be arranged obliquely, that is, the first connecting part 61 of each second cladding sheet 64 can be inclined between the longitudinal beam 2 and the corresponding auxiliary side beam 4 and form a structure similar to a right-angled triangle. By virtue of the stability of the triangular structure, the structural strength of the connection between the auxiliary side beam 4 and the longitudinal beam 2 can be sufficiently ensured.

[0063] In some embodiments, the auxiliary side beam 4 can include a first side beam 41 and a second side beam 42. The connection between the first side beam 41 and the longitudinal beam 2 is higher than the connection between the second side beam 42 and the longitudinal beam 2.

[0064] For example, as shown in Figure 2 and Figure 3 the first side beam 41 can be located on the left side of the longitudinal beam 2, and the second side beam 42 can be located on the right side of the longitudinal beam 2. The connection between the first side beam 41 and the longitudinal beam 2 is the connection position of the second end of the first side beam 41 and the longitudinal beam 2, which is referred to as the first connection position for convenience of description. The connection between the second side beam 42 and the longitudinal beam 2 is the connection position of the second end of the second side beam 42 and the longitudinal beam 2, which is referred to as the second connection position for convenience of description.

[0065] As shown in Figure 2 , the first connection position can be located above the second connection position in the up-down direction. In this way, on the one hand, the overall structural strength can be enhanced by this staggered arrangement, and on the other hand, the structural style of the first side beam 41 and the second side beam 42 can meet the installation and use needs of the foot support, chain, etc.

[0066] In some embodiments, the side beam 4 can be the first side beam 41 and the second side beam 42. The connection between the first side beam 41 and the longitudinal beam 2 is not higher than the connection between the second side beam 42 and the longitudinal beam 2. The first connection position can be at the same height as the second connection position in the up-down direction, which can meet the installation convenience and aesthetic sense in some scenarios.

[0067] In some embodiments, the first connection part 61 of the second cladding 64 at the connection between the first side beam 41 and the longitudinal beam 2 is located on either side of the first side beam 41, and the first connection part 61 of the second cladding 64 at the connection between the second side beam 42 and the longitudinal beam 2 is located on either side of the second side beam 42. Either side can be above, below, left, or right.

[0068] In some embodiments, if the connection between the first side beam 41 and the longitudinal beam 2 is higher than the connection between the second side beam 42 and the longitudinal beam 2, the first connection part 61 of the second cladding 64 at the connection between the first side beam 41 and the longitudinal beam 2 is located below the first side beam 41, and the first connection part 61 of the second cladding 64 at the connection between the second side beam 42 and the longitudinal beam 2 is located above the second side beam 42. By arranging the cladding in this way, installation is facilitated and the overall structural strength is enhanced.

[0069] For example, as shown in Figure 2 , the second cladding 64 on the left side of the longitudinal beam 2 can be located on the lower side of the first side beam 41, and the second cladding 64 on the right side of the longitudinal beam 2 can be located on the upper side of the second side beam 42. In this way, on the one hand, the overall space utilization can be improved, i.e., the space on the lower side of the first side beam 41 and the space on the upper side of the second side beam 42 can be used respectively. On the other hand, the overall structural strength and the balance of structural distribution can be further improved.

[0070] In some embodiments, the first side beam 41 is provided with a connecting portion 411 for connecting with a foot prop, and the second side beam 42 is used for connecting with a chain. For example, as shown in Figure 2 the connecting portion 411 can be a corner plate or the like fixedly welded to the middle portion of the first side beam 41, and a structural member such as a foot prop can be connected and fixed with the connecting portion 411, thereby improving the utilization rate of the first side beam 41. A gear or the like can be mounted on the second side beam 42, and the chain can be engaged with the gear.

[0071] In some embodiments, as shown in Figure 2 the longitudinal beam 2 is provided with a lug 7 fixedly welded to the rear side of the longitudinal beam 2, and the lug 7 is provided with an assembly hole 71 which can be a circular hole. The assembly hole 71 can penetrate through the lug 7 along the left-right direction, and the flat fork beam 3 is assembled in the assembly hole 71 and can also be connected and fixed with the lug 7 by welding. Thus, the installation and arrangement of the flat fork beam 3 are facilitated.

[0072] In some embodiments, the lug 7 has a plurality of lug 7s arranged in the width direction, and the assembly holes 71 of the plurality of lug 7s are arranged opposite to each other in the width direction. The flat fork beam 3 penetrates through the assembly hole 71 of each lug 7.

[0073] For example, as shown in Figure 3 two lugs 7 can be arranged opposite to each other in the left-right direction, and the assembly holes 71 of the two lugs 7 can be arranged opposite to each other in the left-right direction. The flat fork beam 3 can simultaneously penetrate through the assembly holes 71 of the two lugs 7. Thus, the structural strength of the assembly with the flat fork beam 3 is ensured.

[0074] In some embodiments, the flat fork beam 3 is screw-assembled in the assembly hole 71. That is, the assembly hole 71 can be a threaded hole, and the outer periphery side of the flat fork beam can be provided with an external thread, thereby achieving the effect of assembly and positioning.

[0075] In some embodiments, the main side beam 1, the longitudinal beam 2, the flat fork beam 3, and the auxiliary side beam 4 are all tubular structures. Thus, while ensuring the structural strength of each beam, the cost can also be reduced.

[0076] In some embodiments, the radial dimension of the main side beam 1 is greater than the radial dimension of the auxiliary side beam 4, and the radial dimension of the longitudinal beam 2 is greater than the radial dimension of the main side beam 1. For example, the main side beam 1 and the auxiliary side beam 4 can both be generally circular tube structures, and the diameter of the main side beam 1 is greater than the diameter of the auxiliary side beam 4, thereby fully meeting the use needs of load bearing and force transmission by the main side beam 1. The longitudinal beam 2 can be a flat tube, and the minimum radial dimension of the longitudinal beam 2 can be greater than the diameter of the main side beam 1, thereby fully ensuring the use needs of force transmission by the longitudinal beam 2.

[0077] In some embodiments, the cross section of the side beam 4 is circular or elliptical, thereby facilitating the guarantee of the overall structural strength and the reduction of the overall material consumption, and playing a role in reducing the cost.

[0078] In some embodiments, the side beam 4 is arc-shaped. For example, as shown in FIG. 4, the side beam 4 can be generally a quarter of a circular arc, thereby guaranteeing the overall structural strength and making the side beam 4 overall relatively smooth, and facilitating the elimination of stress concentration and other problems at the bending position. Figure 2

[0079] In some embodiments, the side beam 4 and the main beam 1, and the side beam 4 and the longitudinal beam 2 are all welded.

[0080] In some embodiments, as shown in FIG. 6, the flat fork beam 3 is connected with the rear flat fork 200 of the vehicle. The rear flat fork 200 is a flat fork assembled with the rear wheel of the vehicle, and fully meets the use needs of the rear wheel drive. Figure 4

[0081] The vehicle of the embodiments of the present application is described below.

[0082] The vehicle of the embodiments of the present application includes a frame 100, which can be the frame 100 described in any of the above embodiments. The vehicle can be a two-wheeled electric vehicle, a motorcycle, or other vehicle including the frame 100. As shown in FIG. 7, the vehicle includes a rear flat fork 200, which can be fixedly connected with the flat fork tube through bolts. Figure 4

[0083] In the description of the present application, it should be understood that the orientations or positional relationships indicated by 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” are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0084] In addition, the terms “first” and “second” are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first” and “second” can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of “plurality” is at least two, such as two, three, etc., unless otherwise specifically limited.

[0085] ​​​In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0086] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0087] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0088] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the changes, modifications, replacements and variations of the above embodiments made by those skilled in the art are within the scope of the present application.

Claims

1. A vehicle frame, characterized by, The vehicle frame comprises: a main side beam; a longitudinal beam and a flat fork beam, the longitudinal beam being directly or indirectly connected to the main side beam, the flat fork beam being connected to the longitudinal beam, and the flat fork beam being used to connect to a flat fork; a sub side beam, the sub side beam being connected between the main side beam and the longitudinal beam.

2. Frame according to claim 1, characterized in that The vehicle frame further comprises a cross beam, the cross beam being connected to the main side beam, and the top end of the longitudinal beam being connected to the cross beam.

3. The frame of claim 1, wherein, The sub side beam is provided in pairs, and the end of each sub side beam is connected to the main side beam or the longitudinal beam by a cladding sheet.

4. Frame according to claim 3, characterized in that The cladding sheet comprises a first connecting portion and a second connecting portion, the first connecting portion being connected to the main side beam or the longitudinal beam, and the second connecting portion being wrapped around the outer circumferential side of the sub side beam.

5. The frame of claim 4, wherein, A plurality of cladding sheets are provided, the first cladding sheet being connected between the sub side beam and the main side beam, and the second cladding sheet being arranged at the included angle formed by the sub side beam and the longitudinal beam, and the first connecting portion of each second cladding sheet forming a triangular structure with the sub side beam and the longitudinal beam.

6. The frame of claim 5, wherein, The two sub side beams are respectively a first side beam and a second side beam, the connection between the first side beam and the longitudinal beam being higher than the connection between the second side beam and the longitudinal beam, or the connection between the first side beam and the longitudinal beam being not higher than the connection between the second side beam and the longitudinal beam. The first connecting portion of the second cladding sheet at the connection between the first side beam and the longitudinal beam is arranged on either side of the first side beam, the first connecting portion of the second cladding sheet at the connection between the second side beam and the longitudinal beam is arranged on either side of the second side beam, and / or the first side beam is provided with a connecting portion for connecting to a foot support, and the second side beam is used to connect to a chain.

7. Frame according to any of claims 1-6, characterized in that The longitudinal beam is provided with a lug, the lug being provided with a fitting hole, and the flat fork beam is fitted into the fitting hole.

8. Frame according to claim 7, characterized in that A plurality of lugs are provided, the plurality of lugs being arranged at intervals along the width direction of the vehicle frame, the fitting holes of the plurality of lugs being arranged opposite to each other along the width direction, and the flat fork beam passing through the fitting hole of each lug. The flat fork beam is screwed into the fitting hole.

9. Frame according to any of claims 1-6, characterized in that The main side beam, the longitudinal beam, the flat fork beam, and the sub side beam are all tubular structures. The radial dimension of the main side beam is greater than the radial dimension of the sub side beam, and the radial dimension of the longitudinal beam is greater than the radial dimension of the main side beam. The cross section of the sub side beam is circular or elliptical. The sub side beam is arc-shaped. The sub side beam and the main side beam, and the sub side beam and the longitudinal beam are all welded. The flat fork beam is connected to the rear flat fork of a vehicle.

10. A vehicle characterized by comprising: The vehicle frame comprises the frame as claimed in any one of claims 1 to 9.

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