Bent pipe beam assembly and vehicle

Abstract

The utility model provides an elbow pipe beam assembly and a vehicle, the elbow pipe beam assembly comprises at least two pipe beam components which are sequentially arranged along the length direction of the elbow pipe beam assembly, each pipe beam component comprises a pipe beam, and two adjacent end parts of two adjacent pipe beams are connected; one of the two adjacent tubular beams is provided with a first inserting structure and / or a first inserting groove, and the other tubular beam is provided with a second inserting groove matched with the first inserting structure and / or a second inserting structure matched with the first inserting groove. In the embodiment of the utility model, the bent pipe beam assembly is designed to be disconnected, so that the bent pipe beam assembly is divided into the at least two pipe beam components, the at least two pipe beam components are separately mounted during mounting, and compared with the whole bent pipe beam assembly, the single pipe beam component is light in weight, small in size and convenient to mount.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and particularly relates to a bent pipe beam assembly and a vehicle. Background Art

[0002] The rear axle is connected to the vehicle frame through the rear suspension. The basic function of the rear axle is to reduce the rotational speed and increase the torque of the power transmitted by the universal drive device by the main reducer, change the transmission direction of the force, and then transmit it to the driving wheels. The bent pipe beam rear axle is a rear axle structure with a special design, usually used in electric vehicles or hybrid vehicles to facilitate the arrangement of the rear axle motor. The bent pipe beam rear axle generally consists of a bent pipe beam assembly, a drive shaft assembly, and peripheral components such as a suspension.

[0003] At present, the bent pipe beam assembly is an integral structure. During the vehicle assembly process, the motor needs to be first installed on the vehicle frame and connected to the inner end of the drive shaft assembly, and then the bent pipe beam assembly is installed. However, the bent pipe beam assembly is heavy and large in size. During the installation process, the bent pipe beam assembly needs to be hoisted as a whole, and the left and right positions of the bent pipe beam assembly need to be adjusted repeatedly, making the installation of the bent pipe beam assembly difficult and dangerous. Summary of the Utility Model

[0004] In view of this, the utility model aims to propose a bent pipe beam assembly and a vehicle to at least solve the technical problems of high installation difficulty and high installation danger of the bent pipe beam assembly in the prior art.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A bent pipe beam assembly includes at least two pipe beam components arranged in sequence along the length direction of the bent pipe beam assembly. Each pipe beam component includes a pipe beam. The pipe beam group includes at least two pipe beams arranged in sequence along the length direction of the bent pipe beam assembly, and two adjacent ends of the adjacent two pipe beams are connected;

[0007] One of the adjacent two pipe beams has a first plug structure and / or a first slot, and the other pipe beam has a second slot that matches the first plug structure and / or a second plug structure that matches the first slot.

[0008] Optionally, the bent pipe beam assembly further includes a reinforcing member, and the reinforcing member is connected to the adjacent two pipe beams;

[0009] There is a splicing surface between the adjacent two pipe beams, and the orthographic projection of the reinforcing member on the adjacent two pipe beams intersects with the splicing surface between the adjacent two pipe beams.

[0010] Optionally, two adjacent ends of the two pipe beams that are close to each other are detachably connected, and the reinforcing member is detachably connected to the two adjacent pipe beams.

[0011] Optionally, at least two of the pipe beam assemblies include a first pipe beam assembly and a second pipe beam assembly. The first pipe beam assembly includes a first pipe beam having the first plug-in structure, and the second pipe beam assembly includes a second pipe beam having the second slot. The first plug-in structure is plugged into the second slot.

[0012] The bent pipe beam assembly further includes a first fastener group. The reinforcing member, the second pipe beam, and the first plug-in structure are connected by the first fastener group.

[0013] The bent pipe beam assembly further includes a second fastener group. The first pipe beam further includes a main body section connected to the first plug-in structure, and the reinforcing member and the main body section are connected by the second fastener group.

[0014] Optionally, along the length direction of the bent pipe beam assembly, the difference between the length of the main body section of the first pipe beam and the length of the second pipe beam is less than or equal to 2 cm.

[0015] Optionally, the main body section has a first end face close to the first plug-in structure, and the second pipe beam has a second end face close to the first pipe beam. The first end face is in contact with the second end face, and the contact portion between the first end face and the second end face forms the splicing surface.

[0016] Optionally, the cross-sectional shape of the pipe beam is rectangular, and the cross-sectional shape of the first plug-in structure is rectangular.

[0017] Optionally, a first spring base, a first suspension connection bracket, and a first knuckle are connected to the first pipe beam.

[0018] A second spring base, a second suspension connection bracket, and a second knuckle are connected to the second pipe beam.

[0019] Optionally, the first knuckle includes a first steering connection portion and a first cover portion. The first cover portion is connected to the end of the first pipe beam away from the second pipe beam and seals the end of the first pipe beam away from the second pipe beam.

[0020] The second knuckle includes a second steering connection portion and a second cover portion. The second cover portion is connected to the end of the second pipe beam away from the first pipe beam and seals the end of the second pipe beam away from the first pipe beam.

[0021] Compared with the prior art, the bent pipe beam assembly of the present invention has the following advantages:

[0022] In the embodiment of the present utility model, the bent pipe beam assembly is designed to be disconnected, so that the bent pipe beam assembly is divided into at least two pipe beam components. During installation, the at least two pipe beam components are installed separately. Compared with the whole bent pipe beam assembly, the weight of a single pipe beam component is light, the size is small, and the installation is convenient. There is no need to adjust the position of the whole bent pipe beam assembly by hoisting to achieve installation, thereby improving the convenience and safety of the installation of the bent pipe beam assembly and shortening the installation man-hours.

[0023] In addition, when a failure occurs in one of the pipe beam components, only the faulty pipe beam component needs to be replaced, without replacing the whole bent pipe beam assembly, which can improve the maintenance economy and reduce the maintenance cost. In addition, through the cooperation of the plugging structure and the slot, the butt joint of two adjacent pipe beams can be quickly and accurately realized. In addition, the size of a single pipe beam is small, and a welding tooling with a small floor area can be used during production to fix and position the pipe beam, which can reduce the production cost and save the production space.

[0024] Another object of the present utility model is to provide a vehicle to solve at least the technical problems of high installation difficulty and high installation risk of the bent pipe beam assembly in vehicles in the prior art.

[0025] To achieve the above object, the technical solution of the present utility model is realized as follows:

[0026] A vehicle includes the bent pipe beam assembly as described above.

[0027] The vehicle has the same advantages as the above-mentioned bent pipe beam assembly compared with the prior art, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0029] Figure 1 is a schematic diagram of the overall structure of the bent pipe beam assembly provided by the embodiment of the present utility model Figure 1 ;

[0030] Figure 2 is a schematic diagram of the overall structure of the bent pipe beam assembly provided by the embodiment of the present utility model Figure 2 ;

[0031] Figure 3 is a schematic perspective view of the bent pipe beam assembly provided by the embodiment of the present utility model;

[0032] Figure 4Schematic diagram of the structure of the first pipe beam, the first spring base, the first suspension connection bracket, and the first steering knuckle in the elbow pipe beam assembly provided by the embodiment of the present invention;

[0033] Figure 5 Schematic diagram of the structure of the second pipe beam, the second spring base, the second suspension connection bracket, and the second steering knuckle in the elbow pipe beam assembly provided by the embodiment of the present invention;

[0034] Figure 6 Schematic diagram of the structure of the first pipe beam, the second pipe beam, and the reinforcing member in the elbow pipe beam assembly provided by the embodiment of the present invention;

[0035] Figure 7 is Figure 1 Cross-sectional view taken along line A-A in

[0036] Figure 8 is Figure 2 Cross-sectional view taken along line B-B in

[0037] Explanation of reference numerals:

[0038] 1 - Pipe beam, 11 - First pipe beam, 111 - First insertion structure, 112 - Main body section, 113 - First end face, 12 - Second pipe beam, 121 - Second slot, 122 - Second end face, 2 - Reinforcing member, 3 - First fastener group, 31 - First long bolt, 32 - First nut, 33 - First short bolt, 4 - Second fastener group, 41 - Second long bolt, 42 - Second nut, 43 - Second short bolt, 5 - Spring base group, 51 - First spring base, 52 - Second spring base, 6 - Suspension connection bracket group, 61 - First suspension connection bracket, 62 - Second suspension connection bracket, 7 - Steering knuckle group, 71 - First steering knuckle, 711 - First steering connection part, 712 - First cover part, 72 - Second steering knuckle, 721 - Second steering connection part, 722 - Second cover part, 8 - First wheel hub bearing, 9 - Second wheel hub bearing. Detailed implementation manners

[0039] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0040] The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] Currently, the bent pipe beam assembly is an integral structure. During the vehicle assembly process, the motor needs to be installed on the vehicle frame and connected to the inner end of the drive shaft assembly first, and then the bent pipe beam assembly is installed. However, the bent pipe beam assembly is heavy and large in size. During the installation process, the bent pipe beam assembly needs to be hoisted as a whole, and the left and right positions of the bent pipe beam assembly need to be adjusted repeatedly, making the installation of the bent pipe beam assembly difficult and dangerous. To solve the above problems, this application proposes a bent pipe beam assembly and a vehicle, and the above-mentioned bent pipe beam assembly and vehicle will be described in detail below.

[0042] In the first aspect, referring to Figures 1 to 5 , an embodiment of the present invention provides a bent pipe beam assembly, which includes at least two pipe beam components arranged in sequence along the length direction of the bent pipe beam assembly. Each pipe beam component includes a pipe beam 1, and the two adjacent ends of the adjacent two pipe beams 1 are connected; among the adjacent two pipe beams 1, one of the pipe beams 1 has a first plugging structure 111 and / or a first slot, and the other pipe beam 1 has a second slot 121 that matches the first plugging structure 111 and / or a second plugging structure that matches the first slot.

[0043] Among them, the length direction of the bent pipe beam assembly can refer to the direction indicated by the C arrow in Figure 1 . The number of pipe beam components can be set according to actual needs, such as being set to two, three, etc. The number of pipe beam components is preferably two. The pipe beam component includes a pipe beam 1 and other components arranged on the pipe beam 1, such as a spring base, a suspension connection bracket, a steering knuckle, etc. Each pipe beam 1 is a hollow beam structure. The connection method of the two adjacent ends of the adjacent two pipe beams 1 can be bolt connection, welding, riveting, etc. When it is necessary to change the wheelbase, it can be achieved by increasing or shortening the length of each pipe beam 1.

[0044] In one implementation manner, one of the adjacent two pipe beams has a first plugging structure 111, and the other pipe beam has a second slot 121 that matches the first plugging structure 111, and the first plugging structure 111 is plugged into the second slot 121. In another implementation manner, one of the adjacent two pipe beams has a first slot, and the other pipe beam has a second plugging structure that matches the first slot, and the second plugging structure is plugged into the first slot. In still another implementation manner, one of the adjacent two pipe beams has a first plugging structure 111 and a first slot, and the other pipe beam has a second slot 121 and a second plugging structure. The first plugging structure 111 is plugged into the second slot 121 and the second plugging structure is plugged into the first slot. In this implementation manner, the first plugging structure 111 can be a solid structure, and the first slot is opened in the first plugging structure 111.

[0045] The shape and size of the second slot 121 match those of the first plugging structure 111, and the shape and size of the second plugging structure match those of the first slot. After the first plugging structure 111 is plugged into the second slot 121, the first plugging structure 111 preferably contacts the inner wall of the second slot 121. After the second plugging structure is plugged into the first slot, the second plugging structure preferably contacts the inner wall of the first slot.

[0046] In the embodiment of the present utility model, a disconnect design is carried out on the elbow beam assembly, so that the elbow beam assembly is divided into at least two beam components. During installation, at least two beam components are installed separately. Compared with the whole elbow beam assembly, the weight of a single beam component is light, the size is small, and the installation is convenient. There is no need to repeatedly adjust the position of the whole elbow beam assembly by hoisting to achieve installation, thereby improving the convenience and safety of the installation of the elbow beam assembly, and shortening the installation working hours. In addition, when one of the beam components fails, only the faulty beam component needs to be replaced, and there is no need to replace the whole elbow beam assembly, which can improve the maintenance economy and reduce the maintenance cost. In addition, through the cooperation of the plugging structure and the slot, the butt joint of two adjacent beams 1 can be quickly and accurately realized.

[0047] The existing elbow beam assembly is an integral structure, and a large welding tooling is required to fix and position the elbow beam during production, resulting in high production costs. In this embodiment, the size of a single beam 1 is small, and a welding tooling with a small floor area can be used to fix and position the beam 1 during production, which can reduce the production cost and save production space.

[0048] In an alternative embodiment of the present utility model, referring to Figures 1 to 3 、 Figure 6 , the elbow beam assembly further includes a reinforcing member 2, and the reinforcing member 2 is connected to two adjacent beams 1; there is a splicing surface between two adjacent beams 1, and the orthographic projection of the reinforcing member 2 on two adjacent beams 1 intersects with the splicing surface between two adjacent beams 1.

[0049] Among them, the reinforcing member 2 can specifically be a plate-like structure. The reinforcing member 2 is specifically connected to the outer walls of two adjacent beams 1. The number of the reinforcing members 2 can be set according to actual needs, for example, set to one, two, three, four, etc. When the cross-sectional shape of the beam 1 is rectangular, the beam 1 has four outer walls, and the number of the reinforcing members 2 is preferably four, and the four reinforcing members 2 are respectively connected to the four outer walls of two adjacent beams 1. The connection method between the reinforcing member 2 and the beam 1 can be bolt connection, welding, riveting, etc. In this embodiment, through the setting of the reinforcing member 2, the connection strength at the connection of two adjacent beams 1 can be improved, so as to meet the use requirements under relatively harsh off-road conditions.

[0050] In an alternative embodiment of the present utility model, the reinforcing member 2 has positioning protrusions, and the pipe beam 1 is provided with positioning holes for cooperating with the positioning protrusions. The number of positioning protrusions can be set according to actual requirements, such as one, two, three, etc. The shape of the positioning protrusions can be rectangular, circular, etc. The shape and size of the positioning holes match the shape and size of the positioning protrusions. Through the arrangement of the positioning protrusions and positioning holes, the positioning of the reinforcing member 2 can be achieved when the reinforcing member 2 is installed, and it is not necessary to manually hold the reinforcing member 2 or use an additional positioning tooling when the reinforcing member 2 is installed.

[0051] In an alternative embodiment of the present utility model, the two adjacent ends of the two adjacent pipe beams 1 that are close to each other are detachably connected, and the reinforcing member 2 is detachably connected to the two adjacent pipe beams 1, facilitating the disassembly of the two adjacent pipe beams 1.

[0052] In other embodiments, the two adjacent ends of the two adjacent pipe beams 1 that are close to each other can be welded, and the reinforcing member can be welded to the two adjacent pipe beams 1.

[0053] In an alternative embodiment of the present utility model, referring to Figures 3 to 8 , at least two pipe beam assemblies include a first pipe beam assembly and a second pipe beam assembly. The first pipe beam assembly includes a first pipe beam 11 having a first insertion structure 111, and the second pipe beam assembly includes a second pipe beam 12 having a second slot 121. The first insertion structure 111 is inserted into the second slot 121; the bent pipe beam assembly further includes a first fastener group 3, a reinforcing member 2, and a second pipe beam 12. The first insertion structure 111 is connected by the first fastener group 3; the bent pipe beam assembly further includes a second fastener group 4. The first pipe beam 11 further includes a main body section 112 connected to the first insertion structure 111, and the reinforcing member 2 is connected to the main body section 112 by the second fastener group 4.

[0054] Wherein, the first pipe beam assembly and the second pipe beam assembly are respectively located on the right side and the left side of the bent pipe beam assembly. The first fastener group 3 may include a first long bolt 31, a first nut 32, and a first short bolt 33. The bent pipe beam assembly further has a width direction and a height direction. The length direction of the first long bolt 31 may be parallel to the width direction of the bent pipe beam assembly, and the first nut 32 is threadedly connected to the first long bolt 31. The length direction of the first short bolt 33 is parallel to the height direction of the bent pipe beam assembly. A threaded hole is provided on the first insertion structure 111, and the first short bolt 33 is threadedly connected to the threaded hole. The second fastener group 4 may include a second long bolt 41, a second nut 42, and a second short bolt 43. The length direction of the second long bolt 41 may be parallel to the width direction of the bent pipe beam assembly, and the second nut 42 is threadedly connected to the second long bolt 41. The length direction of the second short bolt 43 is parallel to the height direction of the bent pipe beam assembly. A threaded hole is provided on the main body section 112, and the second short bolt 43 is threadedly connected to the threaded hole.

[0055] In an alternative embodiment of the present utility model, along the length direction of the bent pipe beam assembly, the difference between the length of the main body section 112 in the first pipe beam 11 and the length of the second pipe beam 12 is less than or equal to 2 cm. Among them, the difference between the length of the main body section 112 and the length of the second pipe beam 12 can be 0 cm, 0.5 cm, 0.8 cm, 1 cm, 1.5 cm, 2 cm, etc. After the first plugging structure 111 is plugged into the second slot 121, the first plugging structure 111 is hidden inside the second pipe beam 12, and the main body section 112 is exposed. In this embodiment, the difference between the length of the main body section 112 in the first pipe beam 11 and the length of the second pipe beam 12 is small, so that the two can share a welding tooling, thereby reducing the production cost.

[0056] In an alternative embodiment of the present utility model, referring to Figures 3 to 5 , the main body section 112 has a first end face 113 close to the first plugging structure 111, the second pipe beam 12 has a second end face 122 close to the first pipe beam 11, the first end face 113 contacts the second end face 122, and a splicing surface is formed at the contact position between the first end face 113 and the second end face 122. After the first plugging structure 111 is plugged into the second slot 121, the first end face 113 contacts the second end face 122. At this time, the first pipe beam 11 and the second pipe beam 12 are spliced in place. In this embodiment, when the first end face 113 contacts the second end face 122, it means that the first pipe beam 11 and the second pipe beam 12 are spliced in place. At this time, the positions of the holes on the first pipe beam 11 and the second pipe beam 12 are aligned, and there is no need to repeatedly adjust the positions of the two to align the holes.

[0057] In an alternative embodiment of the present utility model, referring to Figure 4 and Figure 5 , the cross-sectional shape of the pipe beam 1 is rectangular, the cross-sectional shape of the first plugging structure 111 is rectangular, and the cross-sectional shape of the second slot 121 is rectangular. Among them, the cross-section of the pipe beam 1 specifically refers to the section perpendicular to the extension direction of the pipe beam 1, and the cross-sections of the first plugging structure 111 and the second slot 121 are parallel to the cross-section of the pipe beam 1. When the cross-sectional shape of the pipe beam 1 is rectangular, it is convenient to modify or add facilities, and the modifiability of the vehicle can be increased. For example, when the cross-sectional shape of the pipe beam 1 is rectangular, it is convenient to install off-road facilities such as a trailer hitch.

[0058] In an alternative embodiment of the present utility model, referring to Figures 3 to 5, a first spring base 51, a first suspension connection bracket 61, and a first knuckle 71 are connected to the first pipe beam 11; a second spring base 52, a second suspension connection bracket 62, and a second knuckle 72 are connected to the second pipe beam 12. Among them, the first spring base 51 and the second spring base 52 form a spring base group 5, the first suspension connection bracket 61 and the second suspension connection bracket 62 form a suspension connection bracket group 6, and the first knuckle 71 and the second knuckle 72 form a knuckle group 7. The connection methods of the first spring base 51, the first suspension connection bracket 61, the first knuckle 71 and the first pipe beam 11 can be welding, bolt connection, etc. The connection methods of the second spring base 52, the second suspension connection bracket 62, the second knuckle 72 and the second pipe beam 12 can be welding, bolt connection, etc. The first knuckle 71 further includes a first bracket for connecting a shock absorber, and the second knuckle 72 further includes a second bracket for connecting a shock absorber.

[0059] The first knuckle 71 is connected with a first wheel hub bearing 8, and the second knuckle 72 is connected with a second wheel hub bearing 9. Since there is a coaxiality requirement for the axes of the two wheel hub bearings, therefore, the planes of the first plugging structure 111 and the second slot 121 themselves need to be controlled for perpendicularity, the planes on the first plugging structure 111 and the second slot 121 need to be controlled for parallelism with the axes of the wheel hub bearings, and the planes on the first pipe beam 11 and the second pipe beam 12 need to be controlled for parallelism after the first plugging structure 111 is plugged into the second slot 121. The reinforcing member 2 is connected to the outer walls of the first pipe beam 11 and the second pipe beam 12. After the reinforcing member 2 is connected, it also plays an auxiliary positioning role, which is beneficial to controlling the parallelism of the planes on the first pipe beam 11 and the second pipe beam 12.

[0060] In an alternative embodiment of the present invention, referring to Figure 4 and Figure 5 , the first knuckle 71 includes a first steering connection portion 711 and a first cover portion 712. The first cover portion 712 is connected to the end of the first pipe beam 11 away from the second pipe beam 12 and seals the end of the first pipe beam 11 away from the second pipe beam 12; the second knuckle 72 includes a second steering connection portion 721 and a second cover portion 722. The second cover portion 722 is connected to the end of the second pipe beam 12 away from the first pipe beam 11 and seals the end of the second pipe beam 12 away from the first pipe beam 11.

[0061] Among them, the connection method of the first cover portion 712 and the first pipe beam 11 can be welding, bolt connection, etc. The connection method of the second cover portion 722 and the second pipe beam 12 can be welding, bolt connection, etc. In this embodiment, the first cover portion 712 functions to prevent water and dust from entering the first pipe beam 11, and the second cover portion 722 functions to prevent water and dust from entering the second pipe beam 12.

[0062] The assembly process of the above elbow pipe beam assembly itself can be as follows: insert the first plugging structure 111 into the second slot 121, then install the reinforcing member 2, and then connect the reinforcing member 2, the first pipe beam 11 and the second pipe beam 12 through the first fastener group 3 and the second fastener group 4; connect the first spring base 51, the first suspension connection bracket 61, and the first steering knuckle 71 to the first pipe beam 11, and connect the second spring base 52, the second suspension connection bracket 62, and the second steering knuckle 72 to the second pipe beam 12.

[0063] The assembly process of the above elbow pipe beam assembly itself can also be as follows: connect the first spring base 51, the first suspension connection bracket 61, and the first steering knuckle 71 to the first pipe beam 11, and connect the second spring base 52, the second suspension connection bracket 62, and the second steering knuckle 72 to the second pipe beam 12; then, insert the first plugging structure 111 into the second slot 121, then install the reinforcing member 2, and then connect the reinforcing member 2, the first pipe beam 11 and the second pipe beam 12 through the first fastener group 3 and the second fastener group 4.

[0064] It can be understood that the above examples are only examples listed for better understanding the technical solutions of the embodiments of the present invention, and do not serve as the only limitation to the embodiments of the present invention.

[0065] In a second aspect, the present invention provides a vehicle, which includes the elbow pipe beam assembly provided in the first aspect. Since the vehicle includes the above elbow pipe beam assembly, it also has the beneficial effects of the above elbow pipe beam assembly. The vehicle provided by the embodiments of the present invention includes the various structures of the elbow pipe beam assembly in any of the above embodiments. To avoid repetition, they will not be described in detail here.

[0066] Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0067] It should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or terminal device including the above elements.

[0068] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A bent tube beam assembly, characterized in that: It comprises at least two tube beam assemblies arranged in sequence along the length direction of the bent tube beam assembly, each of the tube beam assemblies comprises a tube beam, and two ends close to each other of two adjacent tube beams are connected; One of the two adjacent tube beams has a first plug-in structure and / or a first slot, and the other tube beam has a second slot matched with the first plug-in structure and / or a second plug-in structure matched with the first slot.

2. The bent tube beam assembly according to claim 1, characterized in that: The bent tube beam assembly further includes a reinforcement member, which is connected to two adjacent tube beams; There is a splicing surface between two adjacent tube beams, and the orthographic projection of the reinforcement on the two adjacent tube beams overlaps with the splicing surface between the two adjacent tube beams.

3. The bent tube beam assembly according to claim 2, characterized in that: The two ends of the two adjacent tube beams that are close to each other are detachably connected, and the reinforcement is detachably connected to the two adjacent tube beams.

4. The bent tube beam assembly according to claim 3, characterized in that: At least two of the tube beam assemblies include a first tube beam assembly and a second tube beam assembly, wherein the first tube beam assembly includes a first tube beam having the first plug-in structure, and the second tube beam assembly includes a second tube beam having the second slot, wherein the first plug-in structure is plugged into the second slot; The bent tube beam assembly further includes a first fastener group, and the reinforcement, the second tube beam, and the first plug-in structure are connected via the first fastener group; The bent tube beam assembly also includes a second fastener group, the first tube beam also includes a main body section connected to the first plug-in structure, and the reinforcement is connected to the main body section through the second fastener group.

5. The bent tube beam assembly according to claim 4, characterized in that: Along the length direction of the bent tube beam assembly, the difference between the length of the main section in the first tube beam and the length of the second tube beam is less than or equal to 2 centimeters.

6. The bent tube beam assembly according to claim 4, characterized in that: The main body section has a first end face close to the first plug-in structure, the second tube beam has a second end face close to the first tube beam, the first end face is in contact with the second end face, and the contact between the first end face and the second end face forms the splicing surface.

7. The bent tube beam assembly according to any one of claims 1 to 6, characterized in that: The cross-section of the tube beam is rectangular, and the cross-section of the first plug-in structure is rectangular.

8. The bent tube beam assembly according to any one of claims 4 to 6, characterized in that: The first tubular beam is connected with a first spring base, a first suspension connecting bracket and a first steering knuckle; The second tubular beam is connected to a second spring base, a second suspension connecting bracket and a second steering knuckle.

9. The bent tube beam assembly according to claim 8, characterized in that: The first steering knuckle includes a first steering connection portion and a first cover portion, wherein the first cover portion is connected to an end portion of the first tube beam away from the second tube beam and blocks the end portion of the first tube beam away from the second tube beam; The second steering knuckle includes a second steering connection portion and a second covering portion, wherein the second covering portion is connected to an end portion of the second tube beam away from the first tube beam and blocks the end portion of the second tube beam away from the first tube beam.

10. A vehicle, characterized in that: The invention comprises the bent tube beam assembly as described in any one of claims 1 to 9.

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