Multi-section vehicle frame

Abstract

The utility model relates to vehicle structure technical field discloses a kind of multi-section type frame, multi-section type frame includes: first frame body;Second frame body is connected with first frame body;Second frame body includes first longitudinal beam, first upper crossbeam, second upper crossbeam and upper connecting piece;The opposite sides of upper connecting piece along first direction are respectively detachably connected with first frame and first longitudinal beam, the opposite sides of upper connecting piece along second direction are respectively detachably connected with first upper crossbeam and second upper crossbeam;Multi-section type frame provided by the utility model, the length and width of second frame body can be adjusted, under the premise of guaranteeing the basic function of frame, meet the size of second frame body is expanded, to improve the size of battery pack that vehicle can accommodate, meet the demand of expanding electric quantity;When the configuration of vehicle changes, so that the specification size of first frame body changes, without changing the configuration of entire second frame body, only need to change the size of second upper crossbeam simultaneously, improve the generalization degree of frame.

Description

Technical Field

[0001] This utility model relates to the field of vehicle structure technology, specifically to a multi-section vehicle frame. Background Technology

[0002] Traditional vehicles (such as gasoline-powered vehicles) typically have a frame structure consisting of two longitudinal beams running through each other, providing mounting points for components such as the engine, suspension, and body.

[0003] In related technologies, the chassis of new energy vehicles still uses the chassis structure of traditional vehicles. In traditional vehicles, the chassis structure is often fixed in the initial design and cannot be adjusted locally. The placement of the power battery is limited by the size of the chassis, which in turn cannot meet the demand for increased power capacity. In addition, a single chassis configuration can only be adapted to a single type of vehicle configuration. When the vehicle configuration changes, such as when components other than the power battery are added, removed, or their size changes, the space requirements for the chassis layout change. In this case, the entire chassis needs to be redeveloped, which results in a long R&D cycle and affects the production process. Utility Model Content

[0004] In view of this, the present invention provides a multi-segment frame to solve the problem that in the frame of new energy vehicles, the arrangement of the power battery is limited by the size of the frame, which cannot meet the demand for increased power capacity, and when the vehicle configuration is changed, the entire frame needs to be redeveloped, which affects the production process.

[0005] This utility model provides a multi-section vehicle frame, including: a first frame; a second frame connected to the first frame; the second frame includes a first longitudinal beam, a first upper crossbeam, a second upper crossbeam, and upper connecting members respectively connected to the first longitudinal beam, the first upper crossbeam, and the second upper crossbeam; wherein, the upper connecting members are detachably connected to the first frame and the first longitudinal beam on opposite sides along a first direction, and the upper connecting members are detachably connected to the first upper crossbeam and the second upper crossbeam on opposite sides along a second direction.

[0006] In one optional embodiment, the upper connector has a first base and a first upper connecting portion and a second upper connecting portion respectively disposed on opposite sides of the first base along a first direction; the first upper connecting portion is detachably connected to the first frame, and the second upper connecting portion is detachably connected to the first longitudinal beam; wherein, the upper connector further includes a third upper connecting portion and a fourth upper connecting portion respectively disposed on opposite sides of the first base along a second direction; the third upper connecting portion is detachably connected to the first upper crossbeam, and the fourth upper connecting portion is detachably connected to the second upper crossbeam.

[0007] In one alternative embodiment, the first upper connecting portion is offset from the second upper connecting portion in a first direction, and the first upper connecting portion is located above the second upper connecting portion in a third direction, such that the third longitudinal beam is located above the first longitudinal beam in a third direction.

[0008] In one optional embodiment, at least two of the upper connectors are respectively connected to the first frame, and the fourth upper connecting portions of two adjacent upper connectors are arranged opposite each other in the second direction; the two ends of the second upper crossbeam are respectively connected to the fourth upper connecting portions of two adjacent upper connectors; at least two first longitudinal beams are respectively connected to the first upper connecting portions of at least two upper connectors; at least two first upper crossbeams are respectively connected to the third upper connecting portions of at least two upper connectors, and are located on opposite sides of the second upper crossbeam along the second direction.

[0009] In one optional embodiment, the second frame further includes a second longitudinal beam, a first lower crossbeam, a second lower crossbeam, and a lower connector; the lower connector is detachably connected to the first frame and the second longitudinal beam on opposite sides along a first direction; the lower connector is detachably connected to the first lower crossbeam and the second lower crossbeam on opposite sides along a second direction.

[0010] In one optional embodiment, the lower connector has a second base and a first lower connector and a second lower connector respectively disposed on opposite sides of the second base along a first direction; the first lower connector is detachably connected to the first frame, and the second lower connector is detachably connected to the second longitudinal beam; wherein, the lower connector further includes a third lower connector and a fourth lower connector respectively disposed on opposite sides of the second base along a second direction; the third lower connector is detachably connected to the first lower crossbeam, and the fourth lower connector is detachably connected to the second lower crossbeam.

[0011] In one optional embodiment, at least two of the lower connectors are respectively connected to the first frame, and the fourth lower connecting portions of two adjacent lower connectors are arranged opposite each other in the second direction; the two ends of the second lower crossbeam are respectively connected to the fourth lower connecting portions of two adjacent lower connectors; at least two second longitudinal beams are respectively connected to the first lower connecting portions of at least two lower connectors; at least two first lower crossbeams are respectively connected to the third lower connecting portions of at least two lower connectors, and are located on opposite sides of the second lower crossbeam along the second direction.

[0012] In one optional embodiment, the lower connector and the upper connector are arranged in a one-to-one correspondence in the third direction; the second frame also includes a vertical beam, the two ends of which are respectively connected to the upper connector and the lower connector; wherein, the first base has a fifth upper connecting part on the side near the lower connector, and the second base has a fifth lower connecting part on the side near the upper connector; the two ends of the vertical beam are respectively connected to the fifth upper connecting part and the fifth lower connecting part.

[0013] In one alternative embodiment, at least two of the first frames are respectively disposed on opposite sides of the second frame along a first direction, and are respectively connected to the upper connector and the lower connector at the second frame.

[0014] In one optional embodiment, the first frame includes a third longitudinal beam and connecting beams. The third longitudinal beam is provided in multiple ways, and the multiple third longitudinal beams are arranged in parallel and spaced apart. The multiple connecting beams are respectively connected to the multiple third longitudinal beams. The multiple third longitudinal beams are respectively connected to the second upper connecting part or the second lower connecting part.

[0015] In one alternative embodiment, the second frame further includes a frame that is connected to the first upper crossbeam and the first lower crossbeam located on the same side of the first frame along the second direction.

[0016] In one optional embodiment, the beams at the first frame and the second frame are both tubular; the connecting portions at the upper connector and the lower connector are both tubular; wherein, the pipe openings at the connecting portions of the upper connector are respectively provided with first insertion interfaces, the outer wall of the first insertion interface being recessed relative to the outer wall of the pipe opening of the corresponding connecting portion, so as to form a first step between the first insertion interface and the pipe opening at the corresponding position; the pipe openings at the connecting portions of the lower connector are respectively provided with second insertion interfaces, the outer wall of the second insertion interface being recessed relative to the outer wall of the pipe opening of the corresponding connecting portion, so as to form a second step between the second insertion interface and the pipe opening at the corresponding position.

[0017] Beneficial effects: By setting up a second frame that is detachably connected to the first frame, and the second frame including a first longitudinal beam, a first upper crossbeam, and a second upper crossbeam, as well as upper connectors that are detachably connected to the first longitudinal beam, the first upper crossbeam, and the second upper crossbeam respectively, the length (dimension in the first direction) and width (dimension in the second direction) of the second frame can be adjusted according to actual needs. While ensuring the basic functions of the frame, it allows for an expansion of the size of the second frame, thereby increasing the size of the battery pack that the vehicle can accommodate and meeting the need for increased power capacity. In addition, when the vehicle configuration changes, resulting in changes to the specifications and dimensions of the first frame, it is not necessary to change the entire configuration of the second frame; only the dimensions of the second upper crossbeam need to be changed simultaneously. This greatly reduces development tasks, accelerates the production process, and improves the versatility and modularity of the frame.

[0018] Beneficial effects: By setting the first upper connecting part upwards relative to the second upper connecting part, the first frame connected to the first upper connecting part is set upwards relative to the second frame connected to the second upper connecting part. That is, in the third direction, the second frame is set lower than the first frame, and the first longitudinal beam is set lower than the third longitudinal beam, thereby effectively lowering the vehicle's center of gravity and increasing the vehicle's stability.

[0019] Beneficial effects: By setting a first insertion interface and a second insertion interface at the branch pipe openings (pipe openings of the connecting parts) of the upper and lower connectors respectively, and setting the outer wall of the insertion interface to be recessed relative to the outer wall of the pipe opening of the connecting part at the corresponding position, a step (first step and second step) is formed between the insertion interface and the pipe opening at the corresponding position. This allows each beam segment to be quickly and accurately assembled into place when it is inserted and matched with the connecting part, playing a positioning role, saving time and effort, and improving the convenience of installation. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the multi-section frame structure of this utility model; Figure 2 This is an exploded view of the multi-section frame of this utility model; Figure 3 This is a schematic diagram of the structure of the upper connector of this utility model; Figure 4 This is a schematic diagram of the structure of the lower connector of this utility model; Figure 5This is a cross-sectional schematic diagram of the connection between the upper connector and the first and second frames of this utility model.

[0022] Explanation of reference numerals in the attached figures: 1. First frame; 11. Third longitudinal beam; 12. Connecting beam; 2. Second frame; 21. First longitudinal beam; 22. First upper crossbeam; 23. Second upper crossbeam; 24. Second longitudinal beam; 25. First lower crossbeam; 26. Second lower crossbeam; 27. Vertical beam; 28. Frame; 3. Upper connector; 31. First upper connector; 32. Second upper connector; 33. Third upper connector; 34. Fourth upper connector; 35. Fifth upper connector; 36. First base; 37. First insertion interface; 38. First step; 4. Lower connector; 41. First lower connector; 42. Second lower connector; 43. Third lower connector; 44. Fourth lower connector; 45. Fifth lower connector; 46. Second base; 47. Second insertion interface; 48. Second step. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] The following is combined Figures 1 to 5 The following describes embodiments of the present invention.

[0028] According to an embodiment of the present invention, a multi-section vehicle frame is provided, comprising: a first frame 1, adapted to be fixed to a vehicle; a second frame 2, connected to the first frame 1; the second frame 2 includes a first longitudinal beam 21, a first upper crossbeam 22, a second upper crossbeam 23, and upper connecting members 3 respectively connected to the first longitudinal beam 21, the first upper crossbeam 22, and the second upper crossbeam 23; wherein, the upper connecting members 3 are detachably connected to the first frame and the first longitudinal beam 21 on opposite sides along a first direction, and are detachably connected to the first upper crossbeam 22 and the second upper crossbeam 23 on opposite sides along a second direction; at least two of the upper connecting members 3 are arranged opposite each other in the second direction, and the two ends of the second upper crossbeam 23 are respectively connected to at least two of the upper connecting members 3.

[0029] It should be noted that the multi-section frame application method in this embodiment can be, but is not limited to, arranging smaller components (such as motor controllers, batteries, etc.) at the first frame 1 and larger components (such as battery packs, motors, etc.) at the second frame 2.

[0030] Specifically, when the vehicle needs to increase its battery capacity, that is, when a larger battery pack needs to be placed at the second frame 2 or the number of battery packs needs to be increased, it is only necessary to lengthen the first upper crossbeam 22 and / or the first longitudinal beam 21 to widen (increase the size in the second direction) and / or lengthen (increase the size in the first direction) the second frame 2 and the overall frame. There is no need to change the frame design or the basic configuration of the frame. This expands the battery enclosure cavity at the frame, thereby achieving the goal of being able to meet the needs of vehicles with different battery capacities with only a single frame configuration.

[0031] In addition, when there is a need to reduce the battery capacity of the vehicle, the length of the first upper crossbeam 22 and / or the first longitudinal beam 21 can be reduced.

[0032] Furthermore, when the vehicle configuration changes, i.e. when components other than the battery pack are added, removed, or their dimensions change, the arrangement space at the first frame 1 needs to be increased or decreased accordingly to meet the requirements of the vehicle configuration change; only the length of the second upper crossbeam 23 at the second frame 2 needs to be changed synchronously, so that the length of the second upper crossbeam 23 can be increased or decreased, thereby realizing the matching between the second frame 2 and the first frame 1, without changing the configuration of the entire second frame 2, greatly reducing development tasks and accelerating the R&D cycle and production process.

[0033] Optionally, the length of the first upper crossbeam 22, the first longitudinal beam 21, or the second upper crossbeam 23 can be changed by, but is not limited to, removing the original first upper crossbeam 22, the first longitudinal beam 21, or the second upper crossbeam 23 at the upper connector 3 and replacing it with beam segments of different lengths.

[0034] In this embodiment, by setting a second frame 2 that is detachably connected to the first frame 1, and the second frame 2 including a first longitudinal beam 21, a first upper crossbeam 22 and a second upper crossbeam 23, and an upper connector 3 that is detachably connected to the first longitudinal beam 21, the first upper crossbeam 22 and the second upper crossbeam 23 respectively, the length (dimension in the first direction) and width (dimension in the second direction) of the second frame 2 can be adjusted according to actual needs. While ensuring the basic function of the frame, it meets the requirement of expanding the size of the second frame 2, thereby increasing the size of the battery pack that the vehicle can accommodate and meeting the need for increased power capacity. In addition, when the vehicle configuration changes so that the specifications and dimensions of the first frame 1 change, it is not necessary to change the configuration of the entire second frame 2, only the size of the second upper crossbeam 23 needs to be changed synchronously, which greatly reduces development tasks, speeds up the production process, and improves the versatility and modularity of the frame.

[0035] In some embodiments, the upper connector 3 has a first base 36, and a first upper connecting portion 31 and a second upper connecting portion 32 respectively disposed on opposite sides of the first base 36 along a first direction; the first upper connecting portion 31 is detachably connected to the first frame 1, and the second upper connecting portion 32 is detachably connected to the first longitudinal beam 21; wherein, the upper connector 3 further includes a third upper connecting portion 33 and a fourth upper connecting portion 34 respectively disposed on opposite sides of the first base 36 along a second direction; the third upper connecting portion 33 is detachably connected to the first upper crossbeam 22, and the fourth upper connecting portion 34 is detachably connected to the second upper crossbeam 23.

[0036] Combination Figures 1 to 3As shown, multiple connecting parts (first upper connecting part 31, second upper connecting part 32, third upper connecting part 33 and fourth upper connecting part 34) of the upper connecting part 3 are respectively connected to the first base 36, and the multiple connecting parts of the upper connecting part 3 are detachably connected to the beam segments of the first frame 1 and the second frame 2. The detachable connection method can be, but is not limited to, bolt connection.

[0037] In some embodiments, the first upper connecting portion 31 is offset from the second upper connecting portion 32 in a first direction, and the first upper connecting portion 31 is located above the second upper connecting portion 32 in a third direction, so that the first frame is located above the first longitudinal beam 21 in a third direction.

[0038] In this embodiment, by setting the first upper connecting part 31 upwardly offset from the second upper connecting part 32, the first frame 1 connected to the first upper connecting part 31 is set upwardly offset from the second frame 2 connected to the second upper connecting part 32. That is, in the third upward direction, the second frame 2 is set lower than the first frame 1, and the first longitudinal beam 21 is set lower than the third longitudinal beam 11, thereby effectively lowering the center of gravity of the vehicle and increasing the stability of the vehicle.

[0039] In some embodiments, at least two of the first upper crossbeams 22 are respectively connected to at least two upper connectors 3, and at least two of the first upper crossbeams 22 are located on opposite sides of the second upper crossbeam 23 along the second direction.

[0040] Specifically, at least two of the upper connecting members 3 are respectively connected to the first frame 1, and the fourth upper connecting portions 34 of two adjacent upper connecting members 3 are arranged opposite each other in the second direction; the two ends of the second upper crossbeam 23 are respectively connected to the fourth upper connecting portions 34 of two adjacent upper connecting members 3; at least two first longitudinal beams 21 are respectively connected to the first upper connecting portions 31 of at least two upper connecting members 3; at least two first upper crossbeams 22 are respectively connected to the third upper connecting portions 33 of at least two upper connecting members 3, and are located on opposite sides of the second upper crossbeam 23 along the second direction.

[0041] Combination Figure 1 and Figure 2 As shown, the fourth upper connecting parts 34 of two adjacent upper connecting parts 3 located on the same side of the first frame 1 along the first direction are arranged opposite each other to connect the second upper crossbeam 23 between the two oppositely arranged fourth upper connecting parts 34; the two first upper crossbeams 22 are respectively connected to the third upper connecting parts 33 of the two adjacent upper connecting parts 3. Since the third upper connecting parts 33 and the fourth upper connecting parts 34 on the upper connecting parts 3 are respectively located on opposite sides of the first base 36 along the second direction, the two first upper crossbeams 22 are located on opposite sides of the second upper crossbeam 23.

[0042] In some embodiments, the second frame 2 further includes a second longitudinal beam 24, a first lower crossbeam 25, a second lower crossbeam 26, and a lower connector 4; the lower connector 4 is detachably connected to the first frame 1 and the second longitudinal beam 24 on opposite sides along a first direction; the lower connector 4 is detachably connected to the first lower crossbeam 25 and the second lower crossbeam 26 on opposite sides along a second direction.

[0043] Combination Figures 1 to 4 As shown, the second longitudinal beam 24 and the first longitudinal beam 21 are respectively arranged in a third direction, the first lower crossbeam 25 and the first upper crossbeam 22 are respectively arranged in a third direction, and the second lower crossbeam 26 and the second upper crossbeam 23 are respectively arranged in a third direction. The lower connecting member 4 has a second base 46, and a first lower connecting part 41 and a second lower connecting part 42 respectively provided on opposite sides of the second base 46 along a first direction. The first lower connecting part 41 is detachably connected to the first frame 1, and the second lower connecting part 42 is detachably connected to the second longitudinal beam 24. The lower connecting member 4 also includes a third lower connecting part 43 and a fourth lower connecting part 44 respectively provided on opposite sides of the second base 46 along a second direction. The third lower connecting part 43 is detachably connected to the first lower crossbeam 25, and the fourth lower connecting part 44 is detachably connected to the second lower crossbeam 26.

[0044] Furthermore, at least two of the lower connecting members 4 are respectively connected to the first frame 1, and the fourth lower connecting portions 44 of two adjacent lower connecting members 4 are arranged opposite each other in the second direction; the two ends of the second lower crossbeam 26 are respectively connected to the fourth lower connecting portions 44 of two adjacent lower connecting members 4; at least two second longitudinal beams 24 are respectively connected to the first lower connecting portions 41 of at least two lower connecting members 4; at least two first lower crossbeams 25 are respectively connected to the third lower connecting portions 43 of at least two lower connecting members 4, and are located on opposite sides of the second lower crossbeam 26 along the second direction.

[0045] In some embodiments, the lower connector 4 and the upper connector 3 are respectively arranged in a three-dimensional direction; the second frame 2 also includes a vertical beam 27, the two ends of which are respectively connected to the upper connector 3 and the lower connector 4; wherein, the first base 36 is provided with a fifth upper connecting part 35 on the side near the lower connector 4, and the second base 46 is provided with a fifth lower connecting part 45 on the side near the upper connector 3; the two ends of the vertical beam 27 are respectively connected to the fifth upper connecting part 35 and the fifth lower connecting part 45.

[0046] Combination Figure 1 and Figure 2As shown, when the height of the first frame (the dimension in the third direction) changes, there is no need to change the configuration of the entire second frame 2. Only the dimensions of the vertical beam 27 need to be changed synchronously to make the specifications of the second frame match those of the first frame.

[0047] In some embodiments, at least two of the first frames 1 are respectively disposed on opposite sides of the second frame 2 along a first direction, and are respectively connected to the upper connector 3 and the lower connector 4 at the second frame 2.

[0048] Combination Figure 1 and Figure 2 As shown, the second frame 2 is provided with an upper connector 3 and a lower connector 4 on opposite sides along the first direction. The second frame 2 is connected to the first frame 1 by means of the upper connector 3 and the lower connector 4 to form a three-section frame, which can be adapted to the bidirectional skateboard chassis. The height of the second frame 2 in the third direction is less than the height of the first frame 1 on both sides, so that the center of gravity of the second frame 2 is lowered, which improves the stability of the battery pack.

[0049] In some embodiments, the first frame 1 includes connected third longitudinal beams 11 and connecting beams 12. The third longitudinal beams 11 are provided in multiples, and the multiple third longitudinal beams 11 are arranged in parallel and spaced apart. The multiple connecting beams 12 are respectively connected to the multiple third longitudinal beams 11. The specific connection method can be welding, so that the multiple third longitudinal beams 11 are connected together by means of the connecting beams 12 to form the first frame 1.

[0050] Furthermore, the multiple third longitudinal beams 11 are detachably connected to the second upper connecting part 32 or the second lower connecting part 42, so that the first frame 1 and the second frame 2 are detachably connected, and the detachable connection can be a bolt connection.

[0051] In some embodiments, combined with Figure 1 and Figure 2 As shown, the second frame 2 also includes a frame 28, which is connected to the first upper crossbeam 22 and the first lower crossbeam 25 located on the same side of the first frame 1 along the second direction. At least two frames 28 are respectively provided on opposite sides of the second frame 2 along the second direction.

[0052] In some embodiments, combined with Figures 1 to 5As shown, the beams at the first frame 1 and the second frame 2 (such as the first longitudinal beam 21, the first upper crossbeam 22, the second longitudinal beam 24, the first lower crossbeam 25, etc.) are all tubular bodies, specifically hollow tubular structures; the connecting parts at the upper connecting member 3 and the lower connecting member 4 (such as the first upper connecting part 31, the second upper connecting part 32, the first lower connecting part 41, the second lower connecting part 42, etc.) are all tubular bodies, specifically hollow tubular structures. The beam segments at the frame and the connecting parts at the connecting members are inserted and connected by bolts in a detachable manner.

[0053] Furthermore, each of the three connecting parts of the upper connector is provided with a first insertion interface 37 at its pipe opening. The outer wall of the first insertion interface 37 is recessed relative to the outer wall of the pipe opening of the corresponding connecting part, so as to form a first step 38 between the first insertion interface 37 and the pipe opening at the corresponding position. Figure 5 As shown, the first insertion interface 37 is inserted into the pipe opening of the beam segment at the first frame 1 or the second frame 2, and the end of the pipe opening of the beam segment is snapped into the first step 38, so that each beam segment can be quickly and accurately assembled into place, playing a positioning role, and then the connection is fastened with bolts.

[0054] In addition, the pipe openings of the connecting parts at the lower connector 4 are respectively provided with second insertion interfaces 47. The outer wall of the second insertion interface 47 is recessed relative to the outer wall of the pipe opening of the corresponding connecting part, so as to form a second step 48 between the second insertion interface 47 and the pipe opening at the corresponding position. The second insertion interface 47 is inserted into the pipe opening of the beam segment at the first frame 1 or the second frame 2. The end of the pipe opening of the beam segment is engaged with the second step 48, so that each beam segment can be quickly and accurately assembled into place, playing a positioning role, and then fastened with bolts.

[0055] In this embodiment, a first insertion interface 37 and a second insertion interface 47 are respectively provided at the branch pipe openings (pipe openings of the connecting parts) of the upper connector 3 and the lower connector 4. At the same time, the outer wall of the insertion interface is recessed relative to the outer wall of the pipe opening of the connecting part at the corresponding position, so as to form a step (first step 38 and second step 48) between the insertion interface and the pipe opening at the corresponding position. This allows each beam segment to be quickly and accurately assembled into place when it is inserted and matched with the connecting part, which plays a positioning role, saves time and effort, and improves the convenience of installation.

[0056] Preferably, since the upper connector 3 has multiple connecting parts extending in different directions, to reduce the difficulty of molding and manufacturing the upper connector 3, it can be divided into two corresponding interlocking parts. Figure 3As shown, the upper connector 3 is composed of a left molded plate and a right molded plate that interlock. Both the left and right molded plates are formed by casting. The left molded plate has a complete tube body of the first upper connecting part 31, and the left half of the tube body of the third upper connecting part 33, the fourth upper connecting part 34, and the fifth upper connecting part 35, as well as the left half of the plate body of the first base 36. The right molded plate has a second upper connecting part 32, and the right half of the tube body of the third upper connecting part 33, the fourth upper connecting part 34, and the fifth upper connecting part 35, as well as the right half of the plate body of the first base 36. The left and right molded plates interlock, the left and right half of the tube bodies of the third upper connecting part 33, the fourth upper connecting part 34, and the fifth upper connecting part 35 interlock with the right half of the tube body, and the left and right half of the plate body of the first base 36 interlock with the right half of the plate body, thus forming the complete upper connector 3.

[0057] Preferably, since the lower connector 4 has multiple connecting parts extending in different directions, to reduce the difficulty of molding and manufacturing the lower connector 4, it can be divided into two corresponding fastening parts. Figure 4 As shown, the lower connector 4 is composed of an upper molded plate and a lower molded plate that interlock. Both the upper and lower molded plates are formed by casting. The upper molded plate has a complete tube body with a fifth lower connecting part 45, and upper half tube bodies of the first lower connecting part 41, the second lower connecting part 42, the third lower connecting part 43, and the fourth lower connecting part 44, as well as the upper half plate body of the second base 46. The lower molded plate has lower half tube bodies of the first lower connecting part 41, the second lower connecting part 42, the third lower connecting part 43, and the fourth lower connecting part 44, as well as the lower half plate body of the second base 46. The upper and lower molded plates interlock, the upper and lower half tube bodies of the first lower connecting part 41, the second lower connecting part 42, the third lower connecting part 43, and the fourth lower connecting part 44 interlock, and the upper and lower half plate bodies of the second base 46 interlock, thus forming the complete lower connector 4.

[0058] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and all such modifications and variations fall within the scope defined by the present invention.

Claims

1. A multi-section frame, characterized in that, include: First frame (1); The second frame (2) is connected to the first frame (1); The second frame (2) includes a first longitudinal beam (21), a first upper crossbeam (22), a second upper crossbeam (23), and an upper connector (3); The upper connector (3) is detachably connected to the first frame (1) and the first longitudinal beam (21) on opposite sides along the first direction, and the upper connector (3) is detachably connected to the first upper crossbeam (22) and the second upper crossbeam (23) on opposite sides along the second direction. At least two of the upper connectors (3) are arranged opposite each other in the second direction, and the two ends of the second upper beam (23) are respectively connected to at least two of the upper connectors (3).

2. The multi-section frame according to claim 1, characterized in that, At least two of the first upper crossbeams (22) are respectively connected to at least two upper connectors (3), and at least two of the first upper crossbeams (22) are located on opposite sides of the second upper crossbeam (23) along the second direction.

3. The multi-segment frame according to claim 2, characterized in that, The upper connector (3) has a first base (36) and a first upper connecting part (31) and a second upper connecting part (32) respectively disposed on opposite sides of the first base (36) along a first direction; the first upper connecting part (31) is detachably connected to the first frame (1), and the second upper connecting part (32) is detachably connected to the first longitudinal beam (21); The upper connector (3) further includes a third upper connector (33) and a fourth upper connector (34) respectively disposed on opposite sides of the first base (36) along the second direction; the third upper connector (33) is detachably connected to the first upper crossbeam (22), and the fourth upper connector (34) is detachably connected to the second upper crossbeam (23).

4. The multi-segment frame according to claim 3, characterized in that, The first upper connecting part (31) is offset from the second upper connecting part (32) in a first direction, and the first upper connecting part (31) is located above the second upper connecting part (32) in a third direction, so that the first frame (1) is located above the first longitudinal beam (21) in a third direction.

5. The multi-segment frame according to claim 3, characterized in that, The second frame (2) also includes a second longitudinal beam (24), a first lower crossbeam (25), a second lower crossbeam (26), and a lower connector (4); The lower connector (4) is detachably connected to the first frame (1) and the second longitudinal beam (24) on opposite sides along the first direction; The lower connector (4) is detachably connected to the first lower crossbeam (25) and the second lower crossbeam (26) on opposite sides along the second direction.

6. The multi-segment frame according to claim 5, characterized in that, The lower connector (4) and the upper connector (3) are respectively provided in a three-dimensional orientation; The second frame (2) also includes vertical beams (27); The upper connector (3) has a fifth upper connecting part (35) on the side near the lower connector (4), and the lower connector (4) has a fifth lower connecting part (45) on the side near the upper connector (3). The vertical beam (27) is connected at both ends to the fifth upper connecting part (35) and the fifth lower connecting part (45).

7. The multi-segment frame according to claim 6, characterized in that, At least two of the first frames (1) are respectively disposed on opposite sides of the second frame (2) along the first direction, and are respectively connected to the upper connector (3) and the lower connector (4) at the second frame (2).

8. The multi-segment frame according to claim 7, characterized in that, The first frame (1) includes connected third longitudinal beams (11) and connecting beams (12); multiple third longitudinal beams (11) are connected to the second upper connecting part (32) or the second lower connecting part (42) respectively.

9. The multi-segment frame according to claim 8, characterized in that, The second frame (2) also includes a frame (28), which is connected to the first upper crossbeam (22) and the first lower crossbeam (25) located on the same side of the first frame (1) along the second direction.

10. The multi-segment frame according to claim 9, characterized in that, The beams at the first frame (1) and the second frame (2) are both tubular; The connecting parts at the upper connector (3) and the lower connector (4) are both tubes; The upper connector (3) is provided with a first insertion interface (37) at the pipe opening of the connecting part. The outer wall of the first insertion interface (37) is recessed relative to the outer wall of the pipe opening of the connecting part at the corresponding position, so as to form a first step (38) between the first insertion interface (37) and the pipe opening at the corresponding position. The lower connector (4) is provided with a second insertion interface (47) at the pipe opening of the connecting part. The outer wall of the second insertion interface (47) is recessed relative to the outer wall of the pipe opening of the connecting part at the corresponding position, so as to form a second step (48) between the second insertion interface (47) and the pipe opening at the corresponding position.

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