Frame and vehicle

Abstract

The utility model relates to the technical field of vehicle engineering, and provides a vehicle frame and a vehicle. A first support of the vehicle frame is used for installing a driving assembly; the second support is located above the first support and fixed to the first support, a first supporting platform and a second supporting platform of the second support are arranged in a spaced mode in the first direction and connected through a connecting longitudinal beam, and the connecting longitudinal beam is located below the first supporting platform and the second supporting platform in the second direction to form an avoiding groove. The middle part of the container is suspended at the opening end of the avoiding groove; the at least two connecting assemblies are fixed to the first supporting platform and / or the second supporting platform, and the connecting assemblies are used for fixing the container and the second support. The first direction is perpendicular to the second direction. The first support serves as a base structure of the chassis, the second support is used for bearing the container, the container is easily carried by a forklift through the receding grooves, the traditional mode that cushion blocks are placed at the bottom of the container is replaced, the container can directly make contact with the second support, and the transportation stability of the container is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle engineering, in particular to a vehicle frame and a vehicle. Background Art

[0002] Generally, when a cargo box is transported by land, in order to facilitate the handling of the cargo box, it is generally necessary to add pads between the frame and the cargo box so that the cargo box and the frame are spaced apart. The space formed makes it easier for a forklift to reach into the bottom of the cargo box, lift it up, and complete the handling.

[0003] However, since the mass of the cargo box and the goods loaded in it is relatively large, the cushion blocks are easily deformed under the action of pressure, resulting in insufficient clearance between the cargo box and the frame for a forklift to reach in. Or, since the goods loaded in the cargo box are unevenly distributed, the cushion blocks in different areas deform to different degrees, causing the cargo box to tilt or tip over.

[0004] Therefore, there is an urgent need for a vehicle frame and a vehicle to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model aims to provide a vehicle frame and a vehicle, which can facilitate the transportation of a cargo box by a forklift and enable the cargo box to be placed on the vehicle frame relatively stably.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Frame, including:

[0008] First bracket;

[0009] a second bracket, the second bracket being located above the first bracket and being fixed to the first bracket, the second bracket comprising a first supporting platform, a second supporting platform and a connecting longitudinal beam, the first supporting platform and the second supporting platform being spaced apart in a first direction and being used to support the cargo box, the first and the second ends of the connecting longitudinal beam being respectively connected to and fixed to the first supporting platform and the second supporting platform, and the connecting longitudinal beam being located below the first supporting platform and the second supporting platform in a second direction to form an avoidance groove, and the middle portion of the cargo box being suspended at an open end of the avoidance groove;

[0010] A connecting assembly, at least two of which are provided and fixed to the first supporting platform and / or the second supporting platform, and the connecting assembly is used to fix the cargo box and the second bracket;

[0011] The first direction is perpendicular to the second direction.

[0012] As a preferred technical solution for the above-mentioned frame, the above-mentioned first bracket includes a front suspension frame, a battery frame and a rear suspension frame. The above-mentioned front suspension frame, the above-mentioned battery frame and the above-mentioned rear suspension frame are fixed in sequence end to end along the above-mentioned first direction. In the above-mentioned second direction, one of the above-mentioned first support platform and the above-mentioned second support platform is fixed to the above-mentioned front suspension frame, and the other is fixed to the above-mentioned rear suspension frame.

[0013] As a preferred technical solution of the above-mentioned frame, in the above-mentioned second direction, the above-mentioned connecting longitudinal beam is fixed to the above-mentioned battery frame, and in the above-mentioned second direction, the distance H1 between the above-mentioned battery frame and the above-mentioned connecting longitudinal beam satisfies H1≥H2, and the above-mentioned H2 is the distance between the above-mentioned front suspension frame and the plane where the above-mentioned connecting longitudinal beam is located and is determined by the above-mentioned first direction and the third direction;

[0014] The first direction, the second direction and the third direction are perpendicular to each other.

[0015] As a preferred technical solution for the vehicle frame, a support member is fixed to the connecting longitudinal beam, and the support member is spaced apart from the first support platform and the second support platform in the first direction for supporting the bottom of the cargo box in the avoidance groove.

[0016] As a preferred technical solution of the above-mentioned frame, at least two connecting longitudinal beams are provided, and at least two connecting longitudinal beams are arranged at intervals along the third direction, the above-mentioned support member includes a supporting crossbeam and at least two legs, the above-mentioned supporting crossbeam extends along the third direction and is fixed to the above-mentioned connecting longitudinal beam through the above-mentioned legs, and at least two of the above-mentioned legs are respectively located at two different above-mentioned connecting longitudinal beams;

[0017] The first direction, the second direction and the third direction are perpendicular to each other.

[0018] As a preferred technical solution for the above-mentioned frame, the above-mentioned connecting assembly includes a mounting seat and a limit block, the above-mentioned mounting seat is fixed to the above-mentioned second bracket, the above-mentioned limit block is movably connected to the above-mentioned mounting seat, a plug-in hole is provided at the bottom of the above-mentioned cargo box, a contact platform is provided in the above-mentioned plug-in hole, the above-mentioned abutment platform is opposite to the open end of the above-mentioned plug-in hole and is perpendicular to the axis of the above-mentioned plug-in hole, the above-mentioned limit block can be inserted in the above-mentioned plug-in hole, and can abut with the above-mentioned abutment platform along the axial direction of the above-mentioned plug-in hole.

[0019] As a preferred technical solution for the above-mentioned frame, the above-mentioned connecting assembly also includes a rotating shaft and a handle, the above-mentioned rotating shaft is rotatably connected to the above-mentioned mounting seat, one end of the above-mentioned rotating shaft is fixed to the above-mentioned limit block, and the other end is fixed to the above-mentioned handle, and the above-mentioned handle is arranged relative to the above-mentioned mounting seat and facing away from the above-mentioned limit block.

[0020] As a preferred technical solution for the above-mentioned frame, the above-mentioned mounting seat includes a receiving surface and a mounting boss, the above-mentioned receiving surface can abut against the open end surface of the above-mentioned plug-in hole, the above-mentioned mounting boss is located between the above-mentioned limit block and the above-mentioned receiving surface, the above-mentioned mounting boss can be inserted into the above-mentioned plug-in hole and match with the clearance of the above-mentioned plug-in hole, and the height h1 of the above-mentioned mounting boss satisfies, h1≥h2, and the above-mentioned h2 is the distance between the open end surface of the above-mentioned plug-in hole and the above-mentioned abutment platform.

[0021] As a preferred technical solution of the above-mentioned frame, the side of the above-mentioned limit block facing away from the above-mentioned mounting seat is in a cone shape.

[0022] A vehicle is also provided, comprising a drive assembly, the vehicle frame and the cargo box, wherein the cargo box is fixed to the second bracket, and the drive assembly is installed in the first bracket.

[0023] Beneficial effects of the utility model:

[0024] The utility model provides a frame and a vehicle. The vehicle includes a drive assembly, a cargo box and a frame, and the drive assembly and the cargo box are both installed on the frame. The frame includes a first bracket, a second bracket and a connecting assembly. Among them, the first bracket is used to install the drive assembly; the second bracket is located above the first bracket and fixed to the first bracket, the second bracket includes a first support platform, a second support platform and a connecting longitudinal beam, the first support platform and the second support platform are arranged at intervals in the first direction, and are used to support the cargo box, the first and tail ends of the connecting longitudinal beam are respectively connected and fixed to the first support platform and the second support platform, and the connecting longitudinal beam is located below the first support platform and the second support platform in the second direction to form an avoidance groove, and the middle part of the cargo box is suspended at the open end of the avoidance groove; at least two connecting assemblies are provided, fixed to the first support platform and / or the second support platform, and the connecting assembly is used to fix the cargo box and the second bracket; the first direction and the second direction are perpendicular.

[0025] The first bracket is used to install the drive assembly; the second bracket is used to fix the cargo box and the first bracket; the first support platform and the second support platform of the second bracket can support the two ends of the cargo box in the first direction, and the first support platform and the second support platform are fixed by connecting the longitudinal beam, which can maintain the relative stability of the first support platform and the second support platform, and the connecting longitudinal beam has a certain bending resistance to prevent the first support platform and the second support platform from bending and tipping; the middle part of the cargo box is suspended above the connecting longitudinal beam, and the connecting longitudinal beam and the bottom of the cargo box are spaced apart to form an avoidance groove, so that the forklift can support the bottom wall of the cargo box from the avoidance groove to move the cargo box. The connecting component is used to fix the cargo box and the second bracket. In this way, the chassis frame is split into the first bracket and the second bracket, wherein the first bracket is used as the basic structure of the chassis and can maintain the original mechanism, and the second bracket is used to receive the cargo box. The setting of the avoidance groove makes it easy for the forklift to carry the cargo box, instead of the traditional method of placing a pad at the bottom of the cargo box, the cargo box can directly contact the second bracket, enhancing its transportation stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0027] Figure 1 It is a structural schematic diagram of a frame provided by an embodiment of the utility model;

[0028] Figure 2 is a top view of a frame provided by an embodiment of the utility model;

[0029] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0030] Figure 4 It is a side view of a frame provided by an embodiment of the utility model;

[0031] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle.

[0032] In the figure:

[0033] X, first direction; Y, second direction; Z, third direction;

[0034] 110, front suspension frame; 120, battery frame; 130, rear suspension frame; 140, oblique support;

[0035] 210, first supporting platform; 211, frame; 212, supporting rod; 220, second supporting platform; 230, connecting longitudinal beam; 240, supporting member; 241, supporting cross beam; 242, supporting leg;

[0036] 300, connecting assembly; 310, mounting seat; 311, receiving surface; 312, mounting boss; 320, limiting block; 330, handle. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0038] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0041] The utility model provides a vehicle, which comprises a driving assembly, a cargo box and a vehicle frame, wherein the driving assembly and the cargo box are both installed on the vehicle frame.

[0042] Specifically, Figures 1 to 5 As shown, the vehicle frame includes a first bracket, a second bracket and a connecting assembly 300. The first bracket is used to install the drive assembly; the second bracket is located above the first bracket and fixed to the first bracket, the second bracket includes a first support platform 210, a second support platform 220 and a connecting longitudinal beam 230, the first support platform 210 and the second support platform 220 are arranged at intervals in the first direction X, and are used to support the cargo box, the first and tail ends of the connecting longitudinal beam 230 are respectively connected and fixed to the first support platform 210 and the second support platform 220, and the connecting longitudinal beam 230 is located below the first support platform 210 and the second support platform 220 in the second direction Y to form an avoidance groove, and the middle part of the cargo box is suspended at the open end of the avoidance groove; at least two connecting assemblies 300 are provided, fixed to the first support platform 210 and / or the second support platform 220, and the connecting assembly 300 is used to fix the cargo box and the second bracket; the first direction X and the second direction Y are perpendicular.

[0043] Specifically, the first bracket is used to install the drive assembly; the second bracket is used to fix the cargo box and the first bracket; the first support platform 210 and the second support platform 220 of the second bracket can support the two ends of the cargo box in the first direction X, and the first support platform 210 and the second support platform 220 are fixed by the connecting longitudinal beam 230, which can maintain the relative stability of the first support platform 210 and the second support platform 220, and the connecting longitudinal beam 230 has a certain anti-bending ability to prevent the first support platform 210 and the second support platform 220 from bending and tipping; the middle part of the cargo box is suspended above the connecting longitudinal beam 230, and the connecting longitudinal beam 230 is spaced from the bottom of the cargo box to form an avoidance groove, so that the forklift can support the bottom wall of the cargo box from the avoidance groove to move the cargo box. The connecting component 300 is used to fix the cargo box and the second bracket. In this way, the chassis frame is split into a first bracket and a second bracket, wherein the first bracket serves as the basic structure of the chassis and can maintain the original structure, and the second bracket is used to receive the cargo box. The setting of the avoidance groove makes it easy for the forklift to carry the cargo box, instead of the traditional method of placing pads at the bottom of the cargo box. The cargo box can directly contact the second bracket, thereby enhancing its transportation stability.

[0044] Specifically, the first support platform 210 and the second support platform 220 both include a frame 211, and the frame 211 and the first bracket are spaced apart in the second direction Y. The frame 211 is fixed to the first bracket through multiple support rods 212. The side of the frame 211 perpendicular to the second direction Y is the supporting surface, and the longitudinal beam 230 is connected to the support rod 212 to form an avoidance groove with a groove bottom connecting the longitudinal beam 230 and the support rods 212 on both sides of the first direction X as side walls. The avoidance groove penetrates the second bracket in the third direction Z, and the opening direction of the avoidance groove is away from the first bracket.

[0045] Furthermore, along the second direction Y, the projections of the first bracket, the second bracket and the cargo box at least partially overlap, and the centers of gravity of the three are all located in the overlapping projection area.

[0046] Optionally, the first bracket includes a front suspension frame 110, a battery frame 120 and a rear suspension frame 130, and the front suspension frame 110, the battery frame 120 and the rear suspension frame 130 are fixed in sequence end to end along a first direction X, and in a second direction Y, one of the first support platform 210 and the second support platform 220 is fixed to the front suspension frame 110, and the other is fixed to the rear suspension frame 130.

[0047] Specifically, the first bracket serves as the chassis infrastructure of the vehicle frame, including a front suspension frame 110, a battery frame 120 and a rear suspension frame 130, and the three are connected end to end in a first direction X, i.e., the front and rear direction of the vehicle, and preferably, the three are fixed by welding. Furthermore, the first support platform 210 and the second support platform 220 are fixed to the front suspension frame 110 and the rear suspension frame 130, respectively, so that the weight of the cargo box can be borne by the first bracket and the second bracket, and the force transmitted to the first bracket through the second bracket is relatively evenly distributed.

[0048] Optionally, in the second direction Y, the connecting longitudinal beam 230 is fixed to the battery frame 120, and in the second direction Y, the distance H1 between the battery frame 120 and the connecting longitudinal beam 230 satisfies H1≥H2, where H2 is the distance between the front suspension frame 110 and the plane where the connecting longitudinal beam 230 is located and is determined by the first direction X and the third direction Z; the first direction X, the second direction Y and the third direction Z are perpendicular to each other. The battery frame 120 is used to install batteries. Generally, a vehicle carries multiple batteries. Since the width and length dimensions of the vehicle are not easy to be too large, multiple batteries are mostly stacked along the height direction of the vehicle. In the field of unmanned logistics vehicles, the number of batteries that a vehicle can carry determines its vehicle endurance. Thus, in this embodiment, by setting the difference size between H1 and H2, the space in which the battery frame 120 can load batteries in the third direction Z is expanded.

[0049] Specifically, the battery frame 120 , the front suspension frame 110 and the rear suspension frame 130 are spaced apart in the second direction Y, the battery frame 120 is located at a low position, the front suspension frame 110 and the rear suspension frame 130 are located at a high position, and the three are connected and fixed by an oblique support 140 .

[0050] Since the connecting longitudinal beam 230 is located at a low position in the second direction Y, and the abutting surfaces of the first support platform 210 and the abutting surfaces of the second support platform 220 located on both sides of the connecting longitudinal beam 230 in the first direction X are located at a high position, an avoidance groove is formed for the forklift to carry the cargo box. The cargo box and the second bracket are supported only by the first support platform 210 and the second support platform 220 located at both ends, which easily causes the middle part of the cargo box, that is, the area above the avoidance groove, to collapse downward because it is always in a suspended state. For this reason, in this embodiment, the connecting longitudinal beam 230 is fixed with a support member 240, and the support member 240 is spaced apart from the first support platform 210 and the second support platform 220 in the first direction X, and is used to support the bottom of the cargo box in the avoidance groove.

[0051] Preferably, a support member 240 is disposed at a midpoint between the first support platform 210 and the second support platform 220 .

[0052] Preferably, the support members 240 are symmetrically arranged in the first direction X with the midpoint of the first support platform 210 and the second support platform 220 as a symmetrical point.

[0053] Furthermore, at least two connecting longitudinal beams 230 are provided, and at least two connecting longitudinal beams 230 are arranged at intervals along the third direction Z. The support member 240 includes a supporting crossbeam 241 and at least two supporting legs 242. The supporting crossbeam 241 extends along the third direction Z and is fixed to the connecting longitudinal beam 230 through the supporting legs 242. At least two supporting legs 242 are respectively located at two different connecting longitudinal beams 230; the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0054] In this way, the first support platform 210 and the second support platform 220 are connected by a plurality of connecting longitudinal beams 230, so that they can be fixed more firmly. The bending resistance of the plurality of connecting longitudinal beams 230 is relatively strong, so that the first support platform 210 and the second support platform 220 can be prevented from bending at the connecting longitudinal beams 230 after the downward pressure of the cargo box. At least two connecting longitudinal beams 230 are arranged at intervals in the third direction Z to provide support points for the supporting cross beam 241. The legs 242 can lift the supporting cross beam 241 from the connecting longitudinal beam 230 and can abut against the bottom wall of the cargo box. The supporting cross beam 241 extends along the third direction Z, which is consistent with the direction in which the forklift extends into the avoidance groove, so that the forklift can be prevented from hooking with the supporting cross beam 241 and interfering with the forklift in carrying the cargo box.

[0055] Preferably, a plurality of connecting longitudinal beams 230 are arranged in parallel.

[0056] Preferably, the support leg 242 is in an eight-shaped shape, and is formed by at least two support rods with opposite inclination directions, the first end of the support rod is welded and fixed to the connecting longitudinal beam 230, and the second end of the support rod is welded and fixed to one end of the supporting crossbeam 241. The spacing between the first ends of the two oppositely inclined support rods is greater than the spacing between the second ends, so that a triangular structural support is formed, which has relatively stronger stability.

[0057] Optionally, the connecting assembly 300 includes a mounting base 310 and a limit block 320, the mounting base 310 is fixed to the second bracket, the limit block 320 is movably connected to the mounting base 310, a plug-in hole is provided at the bottom of the cargo box, an abutment platform is provided in the plug-in hole, the abutment platform is opposite to the open end of the plug-in hole and is perpendicular to the axis of the plug-in hole, the limit block 320 can be inserted into the plug-in hole and can abut against the abutment platform along the axial direction of the plug-in hole.

[0058] Specifically, the limit block 320 includes a first position and a second position relative to the mounting seat 310. When in the first position, the limit block 320 can be inserted into the plug hole. When switching from the first position to the second position, the limit block 320 abuts against the abutment platform along the axial direction of the plug hole.

[0059] In this embodiment, the limiting block 320 is rotatably connected to the mounting plate.

[0060] Specifically, the connecting assembly 300 also includes a rotating shaft and a handle 330. The rotating shaft is rotatably connected to the mounting seat 310. One end of the rotating shaft is fixed to the limit block 320, and the other end is fixed to the handle 330. The handle 330 is arranged relative to the mounting seat 310 with its back facing the limit block 320.

[0061] The limit block 320 is in the shape of a straight line and is perpendicular to the axial direction of the plug-in hole. The plug-in hole includes a first plug-in section and a second plug-in section along its axial direction, wherein the first plug-in section forms an opening of the plug-in hole at the end face of the cargo box, and the first plug-in section is in the shape of a straight line that matches the limit block 320, and the diagonal length of the straight line is set to D. The second plug-in section is a cylindrical cavity, and the cross-sectional area S of the second plug-in section satisfies, S≥πD2 / 4≥πd2 / 4, wherein d is the diagonal length of the straight-line cross-section of the limit block 320. An abutment platform is formed between the first plug-in section and the second plug-in section. When the limit block 320 is in the first position, the limit block 320 is aligned with the first plug-in hole section and can be inserted into the second plug-in hole section through the first plug-in hole section. Subsequently, the handle 330 is rotated outside the plug-in hole to rotate the limit block 320 from the first position to the second position. The limit block 320 then abuts against the abutment platform and cannot withdraw from the plug-in hole from the first plug-in section, thereby achieving locking of the cargo box.

[0062] Specifically, if the handle 330 and the limit block 320 are connected through a rotating shaft, the handle 330 and the limit block 320 are arranged along the axial direction of the plug-in hole; if the handle 330 and the limit block 320 are connected through multiple rotating shafts, the multiple rotating shafts can change the transmission direction through bevel gear transmission.

[0063] Preferably, the limiting block 320 is inserted into the plug hole along the second direction Y.

[0064] In other embodiments, the limiting block 320 and the mounting seat 310 can move along the radial direction of the plug hole.

[0065] Specifically, the second socket section is located on one radial side of the first socket section, and a butt platform is formed on the side wall of the second socket section, the butt platform is parallel to the radial direction of the first socket section, and the opening end of the plug-in hole is formed in the first socket section. When the limit block 320 is located at the first position, the limit block 320 can be inserted into the first socket section. When the relative position of the cargo box and the second bracket needs to be locked, the limit block 320 is pushed to the second position, so that the limit block 320 can partially extend into the second socket section and abut against the butt platform, and the limit block 320 cannot withdraw from the opening of the plug-in hole.

[0066] Optionally, the mounting seat 310 includes a receiving surface 311 and a mounting boss 312, the receiving surface 311 can abut against the open end face of the plug hole, the mounting boss 312 is located between the limit block 320 and the receiving surface 311, the mounting boss 312 can be inserted into the plug hole and have a clearance fit with the plug hole, and the height h1 of the mounting boss 312 satisfies, h1 ≥ h2, h2 is the distance between the open end face of the plug hole and the abutment platform. Specifically, in the radial direction of the plug hole, the cross section of the mounting boss 312 is congruent with the maximum cross section of the limit block 320, when the open end face of the plug hole abuts against the receiving surface 311, the mounting boss 312 is inserted into the first plug hole section and forms a clearance fit with the plug hole, limiting the relative displacement of the cargo box and the second bracket except in the plug-in direction, and at this time, it can also be determined that the limit block 320 is located in the second plug hole section.

[0067] Optionally, the side of the stopper 320 facing away from the mounting seat 310 is tapered. In this way, the peripheral side wall of the stopper 320 forms a guide surface, and when the plug hole is aligned with the stopper 320, only the top end of the stopper 320 needs to be inserted into the plug hole, and the open end of the plug hole can be completely aligned with the stopper 320 along the guide surface and the plugging is completed.

[0068] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A frame, characterized in that: include: First bracket; a second bracket, the second bracket being located above the first bracket and being fixed to the first bracket, the second bracket comprising a first supporting platform (210), a second supporting platform (220) and a connecting longitudinal beam (230), the first supporting platform (210) and the second supporting platform (220) being arranged at intervals in a first direction (X) and being used to support (212) the cargo box, the front and rear ends of the connecting longitudinal beam (230) respectively connecting and fixing the first supporting platform (210) and the second supporting platform (220), and the connecting longitudinal beam (230) being located below the first supporting platform (210) and the second supporting platform (220) in a second direction (Y) to form an avoidance groove, and the middle part of the cargo box is suspended at the open end of the avoidance groove; a connecting assembly (300), wherein at least two connecting assemblies (300) are provided and fixed to the first supporting platform (210) and / or the second supporting platform (220), and the connecting assembly (300) is used to fix the cargo box and the second bracket; The first direction (X) and the second direction (Y) are perpendicular.

2. The frame according to claim 1, characterized in that: The first bracket comprises a front suspension frame (110), a battery frame (120) and a rear suspension frame (130); the front suspension frame (110), the battery frame (120) and the rear suspension frame (130) are fixed in sequence end to end along the first direction (X); in the second direction (Y), one of the first support platform (210) and the second support platform (220) is fixed to the front suspension frame (110), and the other is fixed to the rear suspension frame (130).

3. The frame according to claim 2, characterized in that: In the second direction (Y), the connecting longitudinal beam (230) is fixed to the battery frame (120), and in the second direction (Y), a distance H1 between the battery frame (120) and the connecting longitudinal beam (230) satisfies H1≥H2, where H2 is a distance between the front suspension frame (110) and a plane defined by the first direction (X) and a third direction (Z) where the connecting longitudinal beam (230) is located; The first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other.

4. The frame according to claim 1, characterized in that: The connecting longitudinal beam (230) is fixed with a support member (240), and the support member (240) is spaced apart from the first support platform (210) and the second support platform (220) in the first direction (X) and is used to support (212) the bottom of the cargo box in the avoidance groove.

5. The frame according to claim 4, characterized in that: At least two connecting longitudinal beams (230) are provided, and at least two connecting longitudinal beams (230) are arranged at intervals along the third direction (Z); the support member (240) comprises a supporting crossbeam (241) and at least two supporting legs (242); the supporting crossbeam (241) extends along the third direction (Z) and is fixed to the connecting longitudinal beam (230) through the supporting legs (242); and at least two supporting legs (242) are respectively located on two different connecting longitudinal beams (230); The first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other.

6. The frame according to claim 1, characterized in that: The connecting assembly (300) includes a mounting seat (310) and a limit block (320), wherein the mounting seat (310) is fixed to the second bracket, and the limit block (320) is movably connected to the mounting seat (310), and a plug-in hole is provided at the bottom of the cargo box, and an abutment platform is provided in the plug-in hole, wherein the abutment platform faces away from the open end of the plug-in hole and is perpendicular to the axis of the plug-in hole, and the limit block (320) can be inserted into the plug-in hole and can abut against the abutment platform along the axial direction of the plug-in hole.

7. The frame according to claim 6, characterized in that: The connecting assembly (300) further comprises a rotating shaft and a handle (330), wherein the rotating shaft is rotatably connected to the mounting seat (310), one end of the rotating shaft is fixed to the limit block (320), and the other end is fixed to the handle (330), and the handle (330) is arranged relative to the mounting seat (310) and facing away from the limit block (320).

8. The frame according to claim 7, characterized in that: The mounting seat (310) comprises a receiving surface (311) and a mounting boss (312); the receiving surface (311) can abut against the open end surface of the plug-in hole; the mounting boss (312) is located between the limit block (320) and the receiving surface (311); the mounting boss (312) can be inserted into the plug-in hole and have a clearance fit with the plug-in hole; a height h1 of the mounting boss (312) satisfies, h1≥h2, and h2 is the distance between the open end surface of the plug-in hole and the abutment platform.

9. The frame according to claim 6, characterized in that: The side of the limiting block (320) facing away from the mounting seat (310) is in a cone shape.

10. A vehicle, characterized in that It comprises a driving assembly and the frame and the cargo box as described in any one of claims 1 to 9, wherein the cargo box is fixed to the second bracket, and the driving assembly is installed in the first bracket.

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