Anti-rolling frame and vehicle

Abstract

The utility model relates to an anti-rolling frame and a vehicle, the anti-rolling frame comprises a first sub-frame and second sub-frames, the first sub-frame is used for being connected with a column B of a vehicle body, the two transverse sides of the first sub-frame are connected with the second sub-frame respectively, the second sub-frame is provided with a first end and a second end which are oppositely arranged, and the first end is connected with the second end. The first end is connected with the first sub-frame, the second end is used for being connected with a column A of a vehicle body, the second sub-frame is connected with at least one first connecting frame, and the first connecting frames are used for being connected with the vehicle body. According to the anti-rolling frame, the force transmission efficiency between the anti-rolling frame and a vehicle body can be improved, and the probability of instability of the anti-rolling frame is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle equipment, and in particular, to a roll cage and a vehicle. Background Art

[0002] In the related art, a roll cage is a frame structure connected to the vehicle body, used to bear the load and protect the passengers in the vehicle. At present, the force transmission efficiency between the roll cage and the vehicle body is low, which makes the roll cage prone to instability. Utility Model Content

[0003] The purpose of the present disclosure is to provide a roll cage, which can improve the force transmission efficiency between the roll cage and the vehicle body and reduce the probability of instability.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a roll cage, including a first sub-frame and a second sub-frame, the first sub-frame is used to be connected to the B-pillar of the vehicle body, the second sub-frame is connected to the second lateral sides of the first sub-frame respectively, the second sub-frame has a first end and a second end arranged oppositely, the first end is connected to the first sub-frame, and the second end is used to be connected to the A-pillar of the vehicle body, wherein at least one first connecting frame is connected to the second sub-frame, and the first connecting frame is used to be connected to the vehicle body.

[0005] Optionally, the second sub-frame includes a first rod extending in the longitudinal direction, the first rod having the first end, the first rod being connected to the first connecting frame, and the first connecting frame is used to be connected to the top of the side wall of the vehicle body.

[0006] Optionally, the second sub-frame includes a second rod extending in a vertical direction, the second rod has the second end, the second rod is connected to the first connecting frame, and the first connecting frame is used to be connected to the A-pillar.

[0007] Optionally, the second rod has a branch rod portion connected to the first connecting frame,

[0008] The roll cage includes a third sub-frame, and the third sub-frame includes a third rod and a fourth rod connected between the first sub-frame and the second rod, and the third rod and the fourth rod are cross-connected, wherein the third rod is connected to the sub-rod portion, and the fourth rod is connected to the second end.

[0009] Optionally, the roll cage includes a second connecting frame, the second connecting frame includes a U-shaped plate and connecting plates connected to both longitudinal sides of the U-shaped plate, the U-shaped plate surrounds the second end and is fixedly connected to the second end, and the connecting plate is used to connect to the A-pillar.

[0010] Optionally, the roll cage includes a first cross beam, the first cross beam is connected between two of the second sub-frames, at least one third connecting frame is connected to the first cross beam, and the third connecting frame is used to be connected to the front enclosure of the vehicle body.

[0011] Optionally, the number of the first cross beams is at least two, at least two of the first cross beams are spaced apart in the vertical direction, and each of the first cross beams is connected to at least two spaced apart third connecting frames.

[0012] Optionally, the roll cage includes a fourth sub-frame and a fifth sub-frame, wherein the fourth sub-frame and the second sub-frame are respectively connected to two longitudinal sides of the first sub-frame.

[0013] The fifth sub-frame includes a fifth rod and a sixth rod connected between the first sub-frame and the fourth sub-frame, and the fifth rod and the sixth rod are cross-connected.

[0014] Optionally, the fifth rod and the sixth rod both extend from rear to front gradually and tilt upward.

[0015] Optionally, the roll cage includes a second cross beam and a baffle, the second cross beam is connected between the two second sub-frames, and the second cross beam, the first sub-frame and the two second sub-frames together form an annular frame with a through hole, and the baffle is connected to the annular frame and covers the through hole.

[0016] Optionally, the roll cage includes a sixth sub-frame, the sixth sub-frame includes a seventh rod and an eighth rod connected in the annular frame, the seventh rod and the eighth rod are cross-connected, and the baffle includes four triangular sub-plates, each of which is connected between the annular frame and the sixth sub-frame.

[0017] Optionally, the first sub-frame is constructed as a U-shaped frame with an opening facing downward, and the roll cage includes a seventh sub-frame, which is connected to the first sub-frame and includes a ninth rod, a tenth rod and an eleventh rod, and the ninth rod, the tenth rod and the eleventh rod are cross-connected in pairs.

[0018] According to a second aspect of the present disclosure, a vehicle is provided, comprising the roll cage as described above.

[0019] Optionally, the A-pillar has a mounting portion connected to a dashboard, and the second sub-frame includes a second rod extending in a vertical direction, and the second rod is arranged on a front side of the mounting portion.

[0020] Through the above technical scheme, in the roll cage provided by the present invention, when the roll cage is assembled with the vehicle body, the second sub-frame is connected between the first sub-frame and the A-pillar, and the first sub-frame is connected to the B-pillar, thereby, the first sub-frame and the second sub-frame can be used to realize force transmission between the A-pillar and the B-pillar, wherein the first connecting frame can connect the second sub-frame to the vehicle body, thereby, the number of connection points between the second sub-frame and the vehicle body can be increased by using the first connecting frame, thereby, the force transmission efficiency between the second sub-frame and the vehicle body can be improved, thereby improving the force transmission efficiency between the roll cage and the vehicle body, and reducing the probability of instability of the roll cage.

[0021] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0023] Figure 1 is a partial structural schematic diagram of a vehicle provided according to an embodiment of the present disclosure;

[0024] Figure 2 is a partial exploded schematic diagram of a roll cage provided according to an embodiment of the present disclosure;

[0025] Figure 3 is a first schematic diagram of cooperation between a roll cage and a vehicle body in a vehicle provided according to an embodiment of the present disclosure;

[0026] Figure 4 It is a second schematic diagram of the coordination between the roll cage and the vehicle body in the vehicle provided according to an embodiment of the present disclosure.

[0027] Description of Reference Numerals

[0028] 1-first sub-frame, 2-second sub-frame, 21-first rod, 22-second rod, 221-sub-rod portion, 3-third sub-frame, 31-third rod, 32-fourth rod, 41-first crossbeam, 42-second crossbeam, 5-fourth sub-frame, 51-twelfth rod, 52-thirteenth rod, 6-fifth sub-frame, 61-fifth rod, 62-sixth rod, 7-baffle, 71-sub-plate, 8-sixth sub-frame, 81-seventh rod, 82-eighth rod, 9-seventh sub-frame, 91-ninth rod, 92- The tenth rod, 93-the eleventh rod, 10-the first connecting frame, 20-the second connecting frame, 201-the U-shaped plate, 202-the connecting plate, 30-the third connecting frame, 40-the fourth connecting frame, 50-the fifth connecting frame, 60-the sixth connecting frame, 100-the vehicle body, 101-the B-pillar, 102-the A-pillar, 1021-the mounting portion, 103-the side panel, 104-the front panel, 105-the door sill beam, 106-the middle cross beam, 107-the C-pillar, 200-the ring frame, 2001-the through hole. DETAILED DESCRIPTION

[0029] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0030] In the present disclosure, unless otherwise stated, directional words such as "horizontal, longitudinal, vertical" are used based on Figure 1 The XYZ coordinate system is defined in the figure. Specifically, the X direction refers to the lateral direction, which corresponds to the width direction of the vehicle; the Y direction refers to the longitudinal direction, and the side indicated by the arrow is the front, and the opposite is the rear, wherein the longitudinal direction also corresponds to the length direction of the vehicle; the Z direction refers to the vertical direction, and the side indicated by the arrow is the top, and the opposite is the bottom, wherein the top corresponds to the top, and the bottom corresponds to the bottom, and the vertical direction also corresponds to the height direction of the vehicle. "Inside and outside" refer to the inside and outside of the contour of each component itself. The terms "first" and "second" are used to distinguish one element from another, and do not have order and importance. In addition, when the following description refers to the drawings, the same figure numbers in different drawings represent the same or similar elements, and the present disclosure will not elaborate on this.

[0031] According to an exemplary embodiment of the present disclosure, a roll cage is provided, referring to Figure 1 and Figure 2 As shown in the figure, the roll cage includes a first sub-frame 1 and a second sub-frame 2, the first sub-frame 1 is used to connect to the B-pillar 101 of the vehicle body 100, the second sub-frame 2 is connected to the two lateral sides of the first sub-frame 1, the second sub-frame 2 has a first end and a second end arranged oppositely, the first end is connected to the first sub-frame 1, and the second end is used to connect to the A-pillar 102 of the vehicle body 100, wherein at least one first connecting frame 10 is connected to the second sub-frame 2, and the first connecting frame 10 is used to connect to the vehicle body 100.

[0032] Through the above technical scheme, in the roll cage provided by the present invention, when the roll cage is assembled with the vehicle body 100, the second sub-frame 2 is connected between the first sub-frame 1 and the A-pillar 102, and the first sub-frame 1 is connected to the B-pillar 101, thereby, the first sub-frame 1 and the second sub-frame 2 can be used to realize force transmission between the A-pillar 102 and the B-pillar 101 of the roll cage, wherein the first connecting frame 10 can connect the second sub-frame 2 to the vehicle body 100, thereby, the number of connection points between the second sub-frame 2 and the vehicle body 100 can be increased by using the first connecting frame 10, thereby, the force transmission efficiency between the second sub-frame 2 and the vehicle body 100 can be improved, thereby improving the force transmission efficiency between the roll cage and the vehicle body 100, and reducing the probability of instability of the roll cage.

[0033] It should be noted that the present disclosure does not limit the specific structure of the first connecting frame 10, that is, the first connecting frame 10 can be constructed in any suitable manner, wherein the first connecting frame 10 can be welded to the second sub-frame 2 and welded to the vehicle body 100, and the present disclosure does not limit this.

[0034] In the exemplary embodiment of the present disclosure, referring to Figure 1 and Figure 2 As shown in , the second sub-frame 2 may include a first rod 21 extending in the longitudinal direction, the first rod 21 having a first end, and a first connecting frame 10 connected to the first rod 21, the first connecting frame 10 being used to be connected to the top of the side enclosure 103 of the vehicle body 100. Here, in actual arrangement, the first rod 21 will be arranged close to the top of the side enclosure 103 to prevent the first rod 21 from blocking the door opening of the vehicle body 100 and affecting the entry and exit of the occupants. Therefore, the first connecting frame 10 on the first rod 21 can facilitate the connection between the first rod 21 and the side enclosure 103, thereby facilitating the transmission of force between the first rod 21 and the vehicle body 100.

[0035] In the exemplary embodiment of the present disclosure, referring to Figures 1 to 3As shown in , the second sub-frame 2 may include a second rod 22 extending in the vertical direction, the second rod 22 having a second end, and the second rod 22 is connected to a first connecting frame 10, and the first connecting frame 10 is used to be connected to the A-pillar 102. Here, in actual arrangement, the second rod 22 will be arranged close to the A-pillar 102 to avoid the second rod 22 blocking the door opening of the vehicle body 100 and affecting the entry and exit of the occupants. Therefore, the first connecting frame 10 on the second rod 22 can facilitate the connection between the second rod 22 and the A-pillar 102, thereby facilitating the transmission of force between the second rod 22 and the vehicle body 100. Of course, in some embodiments, the second sub-frame 2 may also include a first rod 21 and a second rod 22, and in this case, the second sub-frame 2 is configured as an L-shaped frame. In addition, in order to improve the efficiency of force transmission between the second sub-frame 2 and the vehicle body 100, in some embodiments, at least two first connecting frames 10 may be connected to the first rod 21, and / or at least two first connecting frames 10 may be connected to the second rod 22, and the present disclosure does not limit this.

[0036] In some embodiments of the present disclosure, reference Figures 1 to 3 As shown in , the second rod 22 may have a branch rod portion 221 connected to the first connecting frame 10, and the roll cage may include a third branch frame 3, the third branch frame 3 includes a third rod 31 and a fourth rod 32 connected between the first branch frame 1 and the second rod 22, the third rod 31 and the fourth rod 32 are cross-connected, wherein the third rod 31 is connected to the branch rod portion 221, and the fourth rod 32 is connected to the second end. Here, by providing the third branch frame 3, a plurality of triangular frames can be formed between the first branch frame 1, the second branch frame 2 and the third branch frame 3, thereby effectively supporting the side of the occupant, preventing the door from deforming and entering the passenger compartment when the vehicle rolls over, and preventing the occupant from being thrown out of the vehicle. In addition, by connecting the third rod 31 to the branch rod portion 221, the connection between the third rod 31 and the first connecting frame 10 on the branch rod portion 221 can also be indirectly achieved, thereby effectively improving the force transmission efficiency between the roll cage and the vehicle body 100. Similarly, by connecting the fourth rod 32 to the second end, the fourth rod 32 and the A-pillar 102 can be indirectly connected, thereby improving the force transmission efficiency between the roll cage and the vehicle body 100 .

[0037] In the exemplary embodiment of the present disclosure, referring to Figures 1 to 3As shown in , the roll cage includes a second connecting frame 20, and the second connecting frame 20 may include a U-shaped plate 201 and connecting plates 202 connected to both longitudinal sides of the U-shaped plate 201, the U-shaped plate 201 surrounds the second end and is fixedly connected to the second end, and the connecting plate 202 is used to connect to the A-pillar 102. Here, by making the U-shaped plate 201 surround the second end, the connection area between the U-shaped plate 201 and the second end can be increased, and the connection strength between the two can be increased, wherein, according to some embodiments, the U-shaped plate 201 can be welded to the second end. In addition, by connecting the connecting plate 202 to the A-pillar 102, the connection between the second end and the A-pillar 102 can be achieved, wherein, according to some embodiments, the connecting plate 202 can be welded to the A-pillar 102, or can be connected to the A-pillar 102 by fasteners, and the present disclosure does not limit this.

[0038] In the exemplary embodiment of the present disclosure, referring to Figures 1 to 4 As shown in , the roll cage includes a first crossbeam 41, and the first crossbeam 41 can be connected between two second sub-frames 2, for example, the first crossbeam 41 can be connected between two second rods 22, and at least one third connecting frame 30 is connected to the first crossbeam 41, and the third connecting frame 30 is used to connect with the front wall 104 of the vehicle body 100. In this way, the number of connection points between the first crossbeam 41 and the front wall 104 can be increased by using the third connecting frame 30, so as to improve the connection strength between the first crossbeam 41 and the front wall 104 on the one hand, and improve the force transmission efficiency between the first crossbeam 41 and the front wall 104 on the other hand. Here, according to some embodiments, both ends of the first transverse direction can be connected to the front wall 104, and the present disclosure does not limit this. In addition, in actual arrangement, the first crossbeam 41 can be arranged in the front cabin of the vehicle body 100, so that the first crossbeam 41 can be prevented from encroaching on the passenger space of the occupants, and the distance between the first crossbeam 41 and the cockpit can be increased, thereby reducing the damage to the occupants caused by the deformation of the first crossbeam 41 when the vehicle rolls over. In addition, according to some embodiments, the third connecting frame 30 may be welded to the first cross beam 41 and welded to the front enclosure 104 , which is not limited in the present disclosure.

[0039] In some embodiments of the present disclosure, reference Figures 1 to 4 As shown in , the number of first cross beams 41 is at least two, at least two first cross beams 41 are arranged at intervals in the vertical direction, and at least two third connecting frames 30 arranged at intervals can be connected to each first cross beam 41. In this way, the arrangement of at least two first cross beams 41 can enhance the connection strength between the roll cage and the front enclosure 104, and the arrangement of at least two third connecting frames 30 can enhance the force transmission efficiency between the roll cage and the front enclosure 104.

[0040] In the exemplary embodiment of the present disclosure, referring to Figure 1 and Figure 2As shown in , the roll cage includes a fourth sub-frame 5 and a fifth sub-frame 6, and the fourth sub-frame 5 and the second sub-frame 2 are respectively connected to the longitudinal sides of the first sub-frame 1, that is, the second sub-frame 2 is connected to the front side of the first sub-frame 1, and the fourth sub-frame 5 is connected to the rear side of the first sub-frame 1, wherein the fifth sub-frame 6 includes a fifth rod 61 and a sixth rod 62 connected between the first sub-frame 1 and the fourth sub-frame 5, and the fifth rod 61 and the sixth rod 62 are cross-connected. Here, by using the cross-arranged fifth rod 61 and the sixth rod 62, a plurality of triangular frames can be formed between the first sub-frame 1, the fourth sub-frame 5 and the fifth sub-frame 6, so that the structural strength of the rear part of the roll cage can be improved, and the roll cage can be effectively supported on the rear side of the vehicle body 100.

[0041] In some embodiments of the present disclosure, reference Figure 1 and Figure 2 As shown in , the fifth rod 61 and the sixth rod 62 can be extended from the back to the front gradually and tilted upward. In this way, the multiple triangular frames formed between the first sub-frame 1, the fourth sub-frame 5 and the fifth sub-frame 6 can support the vehicle body 100 in the horizontal direction and in the vertical direction, thereby improving the supporting effect of the anti-roll cage on the rear side of the vehicle body 100.

[0042] In some embodiments of the present disclosure, reference Figure 1 and Figure 2 As shown in the figure, the fourth sub-frame 5 can be constructed as a U-shaped frame with an opening facing forward, and the fourth sub-frame 5 includes a twelfth rod 51 and a thirteenth rod 52. The twelfth rod 51 extends in the transverse direction, and the thirteenth rod 52 is connected to both lateral sides of the twelfth rod 51. The fifth rod 61 and the sixth rod 62 can be connected to the twelfth rod 51.

[0043] In some embodiments of the present disclosure, reference Figure 1 and Figure 2 As shown in the figure, the first sub-frame 1 can be constructed as a U-shaped frame with the opening facing downward, wherein one end of the fifth rod 61 can be connected to the connection between the twelfth rod 51 and a thirteenth rod 52, and the other end of the fifth rod 61 can be connected to a turning point of the first sub-frame 1. Similarly, one end of the sixth rod 62 can be connected to the connection between the twelfth rod 51 and another thirteenth rod 52, and the other end of the sixth rod 62 can be connected to another turning point of the first sub-frame 1. Therefore, such an arrangement can improve the force transmission efficiency between the fifth sub-frame 6 and the fourth sub-frame 5, as well as improve the force transmission efficiency between the fifth sub-frame 6 and the first sub-frame 1.

[0044] In some embodiments of the present disclosure, reference Figure 1 and Figure 2 As shown in FIG. 1 , the lateral ends of the twelfth rod 51 are connected to the sixth connecting frame 60 , and the sixth connecting frame 60 can be connected to the C-pillar 107 of the vehicle body 100 , which is not limited in the present disclosure.

[0045] In the exemplary embodiment of the present disclosure, referring to Figure 1 and Figure 2 As shown in , the roll cage includes a second crossbeam 42 and a baffle 7. The second crossbeam 42 can be connected between two second sub-frames 2. For example, the second crossbeam can be connected between two first rods 21. The second crossbeam 42, the first sub-frame 1 and the two second sub-frames 2 together form an annular frame 200 having a through hole 2001. The baffle 7 is connected to the annular frame 200 and covers the through hole 2001. Here, the second crossbeam 42 can be used to connect the two first sub-frames 1, improve the force transmission efficiency between the two first sub-frames 1, and improve the structural strength of the top of the roll cage through the annular frame 200. Among them, the baffle 7 can cover the through hole 2001, thereby preventing sharp structures such as broken glass on the top of the vehicle from falling into the vehicle through the through hole 2001 when the vehicle rolls over, causing harm to the occupants. Here, according to some embodiments, the baffle 7 can be made of steel with a high elongation to ensure that the baffle 7 has sufficient strength, which is not limited by the present disclosure.

[0046] In some embodiments of the present disclosure, reference Figure 1 and Figure 2 As shown in , the roll cage includes a sixth sub-frame 8, and the sixth sub-frame 8 includes a seventh rod 81 and an eighth rod 82 connected in the annular frame 200, and the seventh rod 81 and the eighth rod 82 are cross-connected, and the baffle 7 includes four triangular sub-plates 71, and each sub-plate 71 is connected between the annular frame 200 and the sixth sub-frame 8. Here, through the cross-setting of the seventh rod 81 and the eighth rod 82, a plurality of triangular frames can be formed between the sixth sub-frame 8 and the annular frame 200, thereby improving the structural strength of the top of the roll cage, so that the roll cage can be effectively supported on the top of the vehicle body 100. In addition, the setting of the sub-plates 71 can facilitate the connection of the baffle 7 with the annular frame 200 and the sixth sub-frame 8, thereby facilitating the assembly of the roll cage.

[0047] In some embodiments of the present disclosure, reference Figure 1 and Figure 2 As shown in FIG. 8 , the seventh rod 81 and the eighth rod 82 may be bent, and both the seventh rod 81 and the eighth rod 82 may be bent upward and forward to increase the space of the passenger compartment, which is not limited in the present disclosure.

[0048] In the exemplary embodiment of the present disclosure, referring to Figure 1 and Figure 2As shown in , the first sub-frame 1 can be constructed as a U-shaped frame with an opening facing downward, and the roll cage includes a seventh sub-frame 9, which is connected to the first sub-frame 1 and includes a ninth rod 91, a tenth rod 92, and an eleventh rod 93, and the ninth rod 91, the tenth rod 92, and the eleventh rod 93 are connected in pairs. In this way, through the intersection of the ninth rod 91, the tenth rod 92, and the eleventh rod 93, a plurality of triangular frames can be formed between the first sub-frame 1 and the seventh sub-frame 9, thereby effectively supporting the vehicle body 100 in the vertical direction and reducing the vertical deformation amount when the vehicle rolls over.

[0049] In some embodiments of the present disclosure, a fourth connecting frame 40 may be connected to the inflection point of the first sub-frame 1, and a fifth connecting frame 50 may be connected to the end of the first sub-frame 1, wherein the fourth connecting frame 40 may be connected to the B-pillar 101, and the fifth connecting frame 50 may be connected to the sill beam 105 and the center cross beam 106.

[0050] According to a second aspect of the present disclosure, a vehicle is provided, comprising the roll cage as described above. The vehicle has all the beneficial effects of the roll cage as described above, which will not be described in detail in the present disclosure.

[0051] In the exemplary embodiment of the present disclosure, referring to Figure 3 As shown in , the A-pillar 102 may have a mounting portion 1021 connected to the instrument panel, and the second sub-frame 2 includes a second rod 22 extending in the vertical direction, and the second rod 22 may be arranged at the front side of the mounting portion 1021. In this way, on the one hand, the second rod 22 can be prevented from encroaching on the leg space of the occupant, which is conducive to maintaining a comfortable driving posture for the occupant, and on the other hand, the distance between the second rod 22 and the passenger compartment can be increased, and the deformation of the second rod 22 caused by the rolling of the vehicle can be reduced, thereby reducing the damage caused to the occupant by the second rod 22.

[0052] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0053] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0054] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A roll cage, characterized in that: The invention comprises a first sub-frame and a second sub-frame, wherein the first sub-frame is used to be connected to the B-pillar of the vehicle body, the second sub-frame is connected to the lateral sides of the first sub-frame respectively, the second sub-frame has a first end and a second end which are arranged opposite to each other, the first end is connected to the first sub-frame, and the second end is used to be connected to the A-pillar of the vehicle body, wherein at least one first connecting frame is connected to the second sub-frame, and the first connecting frame is used to be connected to the vehicle body.

2. The roll cage according to claim 1, characterized in that: The second sub-frame includes a first rod extending in the longitudinal direction, the first rod having the first end, the first rod being connected to the first connecting frame, and the first connecting frame is used to be connected to the top of the side wall of the vehicle body.

3. The roll cage according to claim 1 or 2, characterized in that: The second sub-frame includes a second rod extending in a vertical direction, the second rod has the second end, and the first connecting frame is connected to the second rod, and the first connecting frame is used to be connected to the A-pillar.

4. The roll cage according to claim 3, characterized in that: The second rod has a branch rod portion connected to the first connecting frame, The roll cage includes a third sub-frame, and the third sub-frame includes a third rod and a fourth rod connected between the first sub-frame and the second rod, and the third rod and the fourth rod are cross-connected, wherein the third rod is connected to the sub-rod portion, and the fourth rod is connected to the second end.

5. The roll cage according to claim 1, characterized in that: The roll cage includes a second connecting frame, which includes a U-shaped plate and connecting plates connected to both longitudinal sides of the U-shaped plate. The U-shaped plate surrounds the second end and is fixedly connected to the second end. The connecting plate is used to be connected to the A-pillar.

6. The roll cage according to claim 1, characterized in that: The roll cage includes a first cross beam, the first cross beam is connected between two of the second sub-frames, at least one third connecting frame is connected to the first cross beam, and the third connecting frame is used to be connected to the front wall of the vehicle body.

7. The roll cage according to claim 6, characterized in that: The number of the first cross beams is at least two, at least two of the first cross beams are spaced apart in the vertical direction, and each of the first cross beams is connected to at least two spaced apart third connecting frames.

8. The roll cage according to claim 1, characterized in that: The roll cage includes a fourth sub-frame and a fifth sub-frame, wherein the fourth sub-frame and the second sub-frame are respectively connected to two longitudinal sides of the first sub-frame, The fifth sub-frame includes a fifth rod and a sixth rod connected between the first sub-frame and the fourth sub-frame, and the fifth rod and the sixth rod are cross-connected.

9. The roll cage according to claim 8, characterized in that: The fifth rod and the sixth rod both extend from the back to the front and gradually tilt upward.

10. The roll cage according to claim 1, characterized in that: The roll cage includes a second cross beam and a baffle, wherein the second cross beam is connected between the two second sub-frames, and the second cross beam, the first sub-frame and the two second sub-frames together form an annular frame with a through hole, and the baffle is connected to the annular frame and covers the through hole.

11. The roll cage according to claim 10, characterized in that: The roll cage includes a sixth sub-frame, the sixth sub-frame includes a seventh rod and an eighth rod connected in the annular frame, the seventh rod and the eighth rod are cross-connected, and the baffle includes four triangular sub-plates, each of which is connected between the annular frame and the sixth sub-frame.

12. The roll cage according to claim 1, characterized in that: The first sub-frame is constructed as a U-shaped frame with an opening facing downward, and the roll cage includes a seventh sub-frame, which is connected to the first sub-frame and includes a ninth rod, a tenth rod and an eleventh rod, and the ninth rod, the tenth rod and the eleventh rod are cross-connected in pairs.

13. A vehicle, characterized in that: The roll cage comprises the roll cage as claimed in any one of claims 1 to 12.

14. The vehicle according to claim 13, characterized in that The A-pillar has a mounting portion connected to the instrument panel, and the second sub-frame includes a second rod extending in the vertical direction, and the second rod is arranged at the front side of the mounting portion.

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