Frame and vehicle

Abstract

The utility model discloses a vehicle frame and a vehicle, the vehicle frame comprises: a cross beam extending in the transverse direction; the longitudinal beam is arranged on one longitudinal side of the cross beam and extends in the longitudinal direction; the mounting bracket is arranged on the longitudinal beam and is used for mounting a control arm; the reinforcing plate is arranged on the mounting bracket, and a reinforcing cavity is jointly formed among the reinforcing plate, the mounting bracket and the longitudinal beam. Therefore, the reinforcing plate is arranged on the mounting bracket, and the reinforcing cavity is jointly formed among the reinforcing plate, the mounting bracket and the longitudinal beam, so that the reinforcing plate not only can increase the structural strength of the mounting bracket, but also can further improve the structural strength of the mounting bracket through the formed reinforcing cavity. In addition, the connecting strength between the mounting bracket and the longitudinal beams and the connecting strength between the mounting bracket and the control arm can be improved.

Description

Technical Field

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

[0002] With the development of science and technology and the improvement of people's living standards, vehicles have gradually become popular in people's lives. Among them, the structural strength and stiffness of the subframe used to connect with the wheel side and the body side affect the durability of the whole vehicle. The load is transmitted from the wheel side to the subframe and the body. The installation points of each control arm of the subframe are the main load-bearing units. Therefore, to ensure the durability of the whole vehicle, it is necessary to first ensure the strength and stiffness of the brackets at each installation point of the subframe.

[0003] In the prior art, due to the structural layout of the vehicle frame, a large cantilever structure is formed on the bracket for installing the control arm. This structural form is not conducive to the lateral force of the bracket, which not only reduces the stability and firmness of the control arm installed on the bracket, but also reduces the reliability of the bracket itself on the vehicle. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a frame with better structural reliability.

[0005] The utility model further provides a vehicle.

[0006] The vehicle frame according to the embodiment of the utility model includes: a crossbeam, which is extended in the transverse direction; a longitudinal beam, which is arranged on one longitudinal side of the crossbeam and extends in the longitudinal direction; a mounting bracket, which is arranged on the longitudinal beam and is used to install a control arm; a reinforcement plate, which is arranged on the mounting bracket, and a reinforcement cavity is formed between the reinforcement plate, the mounting bracket and the longitudinal beam.

[0007] Thus, by arranging the reinforcing plate on the mounting bracket and forming a reinforcing cavity between the reinforcing plate, the mounting bracket and the longitudinal beam, the reinforcing plate itself can not only increase the structural strength of the mounting bracket, but also further improve the structural strength of the mounting bracket through the formed reinforcing cavity. In addition, the connection strength between the mounting bracket and the longitudinal beam and the longitudinal beam, and the connection strength between the mounting bracket and the control arm can also be improved.

[0008] According to some embodiments of the utility model, the mounting bracket includes a first mounting side panel and a second mounting side panel, the second mounting side panels are two and are respectively arranged at the two longitudinal ends of the first mounting side panel, and the two second mounting side panels are arranged opposite to each other; the reinforcing plate includes a first plate portion and a second plate portion, the first plate portion and the first mounting side panel are laterally spaced apart, the longitudinal sides of the first plate portion are respectively connected to the two second mounting side panels, the upper ends of the first plate portion and the two second mounting side panels are both connected to the longitudinal beam, the second plate portion is connected to the lower end of the first plate portion and is bent and extended laterally toward one side of the first mounting side panel relative to the first plate portion, and the second plate portion is connected to the first mounting side panel to form the reinforcement cavity.

[0009] According to some embodiments of the utility model, a sinking platform reinforcement portion is provided on the first plate portion, and the sinking platform reinforcement portion is recessed toward one side of the first mounting side plate.

[0010] According to some embodiments of the present invention, a distance between a side of the second mounting side plate that is laterally away from the first mounting side plate and the first plate portion is L1, and L1 satisfies the relationship: L1≥12mm.

[0011] According to some embodiments of the present invention, the thickness of the reinforcing plate is D, and D satisfies the relationship: D≥2.5mm.

[0012] According to some embodiments of the present invention, at least one of the first plate portion and the second plate portion is provided with a weight-reducing hole.

[0013] According to some embodiments of the utility model, the longitudinal beam includes an upper plate and a lower plate, the lower plate is located below the upper plate and is welded to the upper plate, the first mounting side plate is welded to a lateral side of the longitudinal beam, the first mounting side plate is provided with an avoidance protrusion, and the avoidance protrusion avoids the welding position of the upper plate and the lower plate of the longitudinal beam.

[0014] According to some embodiments of the utility model, at least one of the two second mounting side panels is welded to the lower side of the longitudinal beam lower plate to form a first weld bead, the first mounting side panel is welded and fixed to a lateral side of the longitudinal beam lower plate to form a second weld bead, the second weld bead is connected to the first weld bead, and the length of the second weld bead is L2, and L2 satisfies the relationship: L2≥10mm.

[0015] According to some embodiments of the present utility model, the vehicle frame further comprises a longitudinal reinforcement beam connected between the mounting bracket and the cross beam.

[0016] The vehicle according to the utility model comprises the frame described above.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of a frame according to an embodiment of the utility model;

[0020] Figure 2 is a partial schematic diagram of a frame according to an embodiment of the utility model;

[0021] Figure 3 is a partial schematic diagram of a frame according to an embodiment of the utility model;

[0022] Figure 4 is a partial schematic diagram of a frame according to an embodiment of the utility model;

[0023] Figure 5 is a partial schematic diagram of a frame according to an embodiment of the utility model;

[0024] Figure 6 It is a force analysis diagram of a frame according to an embodiment of the utility model.

[0025] Reference numerals:

[0026] 100, frame;

[0027] 10. Beam;

[0028] 20. Longitudinal beam; 21. Upper plate of longitudinal beam; 22. Lower plate of longitudinal beam;

[0029] 30. mounting bracket; 31. first mounting side plate; 311. avoidance protrusion; 312. second weld bead; 32. second mounting side plate; 321. first weld bead;

[0030] 40. reinforcement plate; 41. reinforcement cavity; 42. first plate portion; 421. sink reinforcement portion; 43. second plate portion; 44. weight reduction hole;

[0031] 50. Longitudinal reinforcement beam; 60. Control arm. DETAILED DESCRIPTION

[0032] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0033] See the figure below for reference Figure 1-Figure 6 A vehicle frame 100 according to an embodiment of the present invention is described, and the vehicle frame 100 can be applied to a vehicle.

[0034] Combination Figure 1-Figure 5 As shown, the vehicle frame 100 according to the embodiment of the utility model may mainly include a cross beam 10, a longitudinal beam 20, a mounting bracket 30 and a reinforcing plate 40, wherein the cross beam 10 is extended in the transverse direction, the longitudinal beam 20 is arranged on one longitudinal side of the cross beam 10 and is extended in the longitudinal direction, the mounting bracket 30 is arranged on the longitudinal beam 20 and is used to install the control arm 60, the reinforcing plate 40 is arranged on the mounting bracket 30, and a reinforcing cavity 41 is formed between the reinforcing plate 40, the mounting bracket 30 and the longitudinal beam 20.

[0035] Specifically, the cross beam 10 is extended in the lateral direction, the longitudinal beam 20 is arranged on the longitudinal side of the cross beam 10 and is extended in the longitudinal direction, and the installation is arranged on the longitudinal beam 20. It should be noted that the mounting bracket 30 is used to install the control arm 60, but due to the structural layout of the frame 100, the mounting bracket 30 will have a cantilever structure and the structural strength is relatively low.

[0036] Therefore, by setting the reinforcement plate 40 on the mounting bracket 30, the reinforcement plate 40 can support and strengthen the mounting bracket 30, increase the structural strength of the mounting bracket 30, thereby improving the stability and firmness of the connection and fixation between the mounting bracket 30 and the longitudinal beam 20, and improving the stability and reliability of the mounting bracket 30 in installing the control arm 60.

[0037] Furthermore, a reinforcement cavity 41 can be formed between the reinforcement plate 40, the mounting bracket 30 and the longitudinal beam 20. The reinforcement cavity 41 is a relatively closed reinforcement cavity 41, and the reinforcement cavity 41 can absorb and buffer the external force applied to the mounting bracket 30, thereby further improving the structural strength of the mounting bracket 30, further improving the stability and firmness of the connection and fixation between the mounting bracket 30 and the longitudinal beam 20, and further improving the stability and reliability of the mounting bracket 30 in installing the control arm 60.

[0038] Combination Figure 6 As shown, it should be noted that during normal driving of the vehicle, the road load is transmitted to the mounting bracket 30 of the frame through the control arm 60. Figure 6From the force analysis shown, it can be understood that the force F1 received by the mounting bracket 30 of the control arm 60 is decomposed into a lateral force F2 and a longitudinal force F3. The lateral force F2 received by the mounting bracket 30 is much greater than the longitudinal force F3. Therefore, the mounting bracket 30 of the control arm 60 has high requirements for lateral stiffness and strength. Therefore, by providing a reinforcement plate 40 on the mounting bracket 30 and forming a reinforcement cavity 41 between the reinforcement plate 40, the mounting bracket 30 and the longitudinal beam 20, the lateral stiffness and strength of the mounting bracket 30 can be effectively improved, thereby improving the lateral stability of the control arm 60 installed on the mounting bracket 30 and the lateral stability of the mounting bracket 30 installed on the longitudinal beam 20.

[0039] Furthermore, the reinforcement plate 40 and the reinforcement cavity 41 may also enhance the longitudinal stability of the control arm 60 when installed on the mounting bracket 30 to a certain extent, and may enhance the longitudinal stability of the mounting bracket 30 when installed on the longitudinal beam 20 .

[0040] Thus, by arranging the reinforcing plate 40 on the mounting bracket 30, and forming a reinforcing cavity 41 between the reinforcing plate 40, the mounting bracket 30 and the longitudinal beam 20, the reinforcing plate 40 itself can not only increase the structural strength of the mounting bracket 30, but also further improve the structural strength of the mounting bracket 30 through the formed reinforcing cavity 41. In addition, the connection strength between the mounting bracket 30 and the longitudinal beam 20 and the longitudinal beam 20, and the connection strength between the mounting bracket 30 and the control arm 60 can also be improved.

[0041] Combination Figure 2-Figure 5 As shown, the mounting bracket 30 may mainly include a first mounting side panel 31 and a second mounting side panel 32, wherein the number of the second mounting side panels 32 is two and they are respectively arranged at the two longitudinal ends of the first mounting side panel 31, and the two second mounting side panels 32 are arranged opposite to each other, and the reinforcing plate 40 includes a first plate portion 42 and a second plate portion 43, the first plate portion 42 is laterally spaced apart from the first mounting side panel 31 and the longitudinal sides are respectively connected to the two second mounting side panels 32, the upper ends of the first plate portion 42 and the two second mounting side panels 32 are both connected to the longitudinal beam 20, the second plate portion 43 is connected to the lower end of the first plate portion 42 and is bent and extended laterally toward one side of the first mounting side panel 31 relative to the first plate portion 42, and the second plate portion 43 is connected to the first mounting side panel 31 to form a reinforcing cavity 41.

[0042] Specifically, by respectively arranging the two second mounting side panels 32 on both longitudinal sides of the first mounting side panel 31, the upper ends of the two second mounting side panels 32 are connected to the longitudinal beam 20, and the first mounting side panel 31 is connected to the lateral side of the longitudinal beam 20. This facilitates the installation of the control arm 60 on the mounting bracket 30 while ensuring that the mounting bracket 30 and the longitudinal beam 20 are connected to each other. However, with such an arrangement, the first mounting side panel 31 and the two second mounting side panels 32 will form a cantilever structure, thereby reducing the structural stability of the mounting bracket 30.

[0043] Therefore, by arranging the first plate portion 42 and the first mounting side plate 31 laterally at intervals, and connecting the two longitudinal sides of the first plate portion 42 to the two second mounting side plates 32 respectively, the upper end of the first plate portion 42 is also connected to the longitudinal beam 20, the second plate portion 43 is connected to the lower end of the first plate portion 42 and is bent and extended laterally toward one side of the first mounting side plate 31 relative to the first plate portion 42, and the second plate portion 43 is connected to the first mounting side plate 31, so that the first plate portion 42, the second plate portion 43, the first mounting side plate 31, the second mounting side plate 32 and the longitudinal beam 20 can form a reinforcement cavity 41 together. Such an arrangement can not only further enhance the structural reinforcement effect of the reinforcement plate 40 on the mounting bracket 30, but also simplify the structure of the reinforcement plate 40, which is convenient for the production and installation of the reinforcement plate 40.

[0044] It should be noted that the two second mounting side plates 32 are respectively located on the longitudinal sides of the reinforcement cavity 41 , the first plate portion 42 and the first mounting side plate 31 are respectively located on the lateral sides of the reinforcement cavity 41 , and the second plate portion 43 and the longitudinal beam 20 are respectively located on the upper and lower sides of the reinforcement cavity 41 .

[0045] Combination Figure 4 and Figure 5 As shown, a sinking platform reinforcement portion 421 is provided on the first plate portion 42, and the sinking platform reinforcement portion 421 is recessed toward one side of the first mounting side plate 31. Specifically, by providing the sinking platform reinforcement portion 421 on the first plate portion 42, and the sinking platform reinforcement portion 421 is recessed toward one side of the first mounting side plate 31, not only the structural strength of the reinforcement plate 40 itself can be improved, but also the structural strength of the mounting bracket 30 can be indirectly further improved, so that the stability and firmness of the connection and fixation between the mounting bracket 30 and the longitudinal beam 20 can be further improved, and the stability and reliability of the mounting bracket 30 for mounting the control arm 60 can be further improved.

[0046] In addition, since the sinker reinforcement portion 421 is recessed toward one side of the first mounting side plate 31, that is, the first plate portion 42 is farther away from the side of the second mounting side plate 32 that is laterally away from the first mounting side plate 31 at the position corresponding to the sinker reinforcement portion 421, that is, the first plate portion 42 is farther away from the edge of the mounting bracket 30 at the position corresponding to the sinker reinforcement portion 421, the process problem of weld edge burning can be prevented, and the welding strength of the reinforcement plate 40 welded and fixed on the mounting bracket 30 can be improved.

[0047] Combination Figure 5 As shown, the distance between the side of the second mounting side plate 32 that is laterally away from the first mounting side plate 31 and the first plate portion 42 is L1, and L1 satisfies the relationship: L1 ≥ 12 mm. Specifically, the distance between the side of the second mounting side plate 32 that is laterally away from the first mounting side plate 31 and the first plate portion 42 is set to be greater than 12 mm. In this way, the distance between the side of the second mounting side plate 32 that is laterally away from the first mounting side plate 31 and the first plate portion 42 is set within a reasonable range while ensuring the volume of the reinforcing plate 40, thereby ensuring the reinforcing plate 40 increases the structural strength of the mounting bracket 30. That is, the distance between the side of the second mounting side plate 32 that is laterally away from the first mounting side plate 31 and the first plate portion 42 is set far enough, which can further prevent the process problem of weld burn, thereby further improving the welding strength of the reinforcing plate 40 welded and fixed on the mounting bracket 30.

[0048] In some embodiments of the present invention, the thickness of the reinforcing plate 40 is D, and D satisfies the relationship: D ≥ 2.5 mm. Specifically, the thickness D of the reinforcing plate 40 is set to be greater than or equal to 2.5 mm, which can further improve the structural strength of the reinforcing plate 40 itself, thereby further improving the stability and firmness of the connection and fixation between the mounting bracket 30 and the longitudinal beam 20, and further improving the stability and reliability of the mounting bracket 30 to install the control arm 60.

[0049] Combination Figure 1-Figure 5 As shown, at least one of the first plate portion 42 and the second plate portion 43 is provided with a weight-reducing hole 44. Specifically, by providing the weight-reducing hole 44 on at least one of the first plate portion 42 and the second plate portion 43, the weight of the reinforcing plate 40 can be reduced while ensuring the structural strength of the reinforcing plate 40, so that the frame 100 is more lightweight. It should be noted that the weight-reducing hole 44 is elliptical, so that the weight distribution of the reinforcing plate 40 can be more uniform.

[0050] In some embodiments of the present invention, a weight-reducing hole 44 is respectively provided on the first plate portion 42 and the second plate portion 43 , and the weight-reducing hole 44 is located away from the edge of the reinforcing plate 40 , so as to ensure the connection strength between the reinforcing plate 40 and the mounting bracket 30 .

[0051] Combination Figure 3 As shown, the longitudinal beam 20 can mainly include a longitudinal beam upper plate 21 and a longitudinal beam lower plate 22. The longitudinal beam lower plate 22 is located below the longitudinal beam upper plate 21 and is welded and fixed to the longitudinal beam upper plate 21. The first mounting side plate 31 is welded and fixed to a lateral side of the longitudinal beam 20. The first mounting side plate 31 is provided with an avoidance protrusion 311. The avoidance protrusion 311 avoids the welding position of the longitudinal beam upper plate 21 and the longitudinal beam lower plate 22. Specifically, the longitudinal beam lower plate 22 is arranged below the longitudinal beam upper plate 21, and the longitudinal beam upper plate 21 and the longitudinal beam lower plate 22 are welded and fixed. In order to improve the lateral load-bearing performance of the mounting bracket 30, the mounting bracket 30 and the longitudinal beam upper plate 21 are welded to increase the connection relationship between the mounting bracket 30 and the longitudinal beam 20. It should be noted that in some embodiments of the present invention, the first mounting side plate 31 of the mounting bracket 30 is connected and fixed to the longitudinal beam upper plate 21. By providing an avoidance protrusion 311 on the first mounting side plate 31, and making the avoidance protrusion 311 avoid the welding weld between the longitudinal beam upper plate 21 and the longitudinal beam lower plate 22, such a setting can prevent the first mounting side plate 31 from affecting the welding weld between the longitudinal beam upper plate 21 and the longitudinal beam lower plate 22 while ensuring that the first mounting side plate 31 is stably and reliably connected and fixed to the longitudinal beam 20, thereby optimizing the structural design of the frame 100.

[0052] Combination Figure 2 As shown, at least one of the two second mounting side plates 32 is welded to the lower side of the longitudinal beam lower plate 22 to form a first weld bead 321, the first mounting side plate 31 is welded and fixed to a lateral side of the longitudinal beam lower plate 22 to form a second weld bead 312, the second weld bead 312 is connected to the first weld bead 321, the length of the second weld bead 312 is L2, and L2 satisfies the relationship: L2≥10mm. Specifically, the upper end of at least one of the two second mounting side panels 32 is welded to the lower side of the longitudinal beam lower plate 22 to form a first weld bead 321. The first mounting side panel 31 is welded and fixed to a lateral side of the longitudinal beam lower plate 22 to form a second weld bead 312. The second weld bead 312 is connected to the first weld bead 321. In the process of setting the mounting bracket 30 on the longitudinal beam 20, the first weld bead 321 is first formed by welding between the second mounting side panel 32 and the longitudinal beam lower plate 22, and then the welding is continued to extend between the first mounting side panel 31 and the longitudinal beam lower plate 22 to form the second weld bead 312. By setting the length of the second weld bead 312 to be greater than or equal to 10 mm, not only can the end of the first weld bead 321 be avoided from cracking, but also the connection stability and reliability between the first mounting side panel 31 and the longitudinal beam 20 can be improved.

[0053] Combination Figure 1 , Figure 4 and Figure 6As shown, the vehicle frame 100 may also mainly include a longitudinal reinforcing beam 50, and the longitudinal reinforcing beam 50 is connected between the mounting bracket 30 and the cross beam 10. Specifically, as Figure 6 As shown in the force analysis, in addition to the lateral force F2, the mounting bracket 30 will also receive a certain longitudinal force F3. In order to improve the connection stability between the longitudinal beam 20 and the mounting bracket 30, and the connection stability between the mounting bracket 30 and the control arm 60, a longitudinal reinforcement beam 50 can be provided between the mounting bracket 30 and the cross beam 10. This can further improve the structural reliability of the frame 100 without affecting the other structural arrangements of the frame 100.

[0054] Furthermore, if Figure 6 The force analysis shown decomposes the external force F4 received by the control arm 60 installed on the crossbeam 10 into a lateral force F5 and a longitudinal force F6. The longitudinal force F6 received by the control arm 60 on the crossbeam 10 and the longitudinal force F3 received by the control arm 60 on the mounting bracket 30 are opposite in the longitudinal direction, and the frame 100 is subjected to a tensile load. Therefore, by providing a longitudinal reinforcing beam 50 between the mounting bracket 30 and the crossbeam 10, the control arm 60 of the crossbeam 10 and the control arm 60 on the mounting bracket 30 can be connected to each other, thereby not only improving the connection strength between the mounting bracket 30 and the control arm 60 on the mounting bracket 30, but also improving the connection strength between the crossbeam 10 and the control arm 60 on the crossbeam 10, and the longitudinal force F3 received by the control arm 60 on the mounting bracket 30 and the longitudinal force F6 received by the control arm 60 on the crossbeam 10 can offset each other to a certain extent, thereby further improving the longitudinal stability of the crossbeam 10 and the mounting bracket 30.

[0055] The vehicle according to the embodiment of the utility model may mainly include the above-mentioned frame 100. Applying the above-mentioned frame 100 to the vehicle can improve the structural reliability of the vehicle, thereby improving the safety of the vehicle and improving the user's experience of using the vehicle.

[0056] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "circumferential", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A frame, characterized in that: include: A crossbeam (10), wherein the crossbeam (10) is extended in a transverse direction; A longitudinal beam (20), the longitudinal beam (20) being arranged on one longitudinal side of the cross beam (10) and extending in the longitudinal direction; A mounting bracket (30), the mounting bracket (30) being disposed on the longitudinal beam (20) and being used for mounting a control arm (60); A reinforcing plate (40) is arranged on the mounting bracket (30), and a reinforcing cavity (41) is formed between the reinforcing plate (40), the mounting bracket (30) and the longitudinal beam (20).

2. The frame according to claim 1, characterized in that: The mounting bracket (30) comprises a first mounting side plate (31) and a second mounting side plate (32), wherein the second mounting side plates (32) are two and are respectively arranged at two longitudinal ends of the first mounting side plate (31), and the two second mounting side plates (32) are arranged opposite to each other; The reinforcing plate (40) comprises a first plate portion (42) and a second plate portion (43), wherein the first plate portion (42) is laterally spaced apart from the first mounting side plate (31), and the longitudinal sides of the first plate portion (42) are respectively connected to the two second mounting side plates (32), and the upper ends of the first plate portion (42) and the two second mounting side plates (32) are both connected to the longitudinal beam (20), and the second plate portion (43) is connected to the lower end of the first plate portion (42) and is bent and extended laterally relative to the first plate portion (42) toward one side of the first mounting side plate (31), and the second plate portion (43) is connected to the first mounting side plate (31) to form the reinforcing cavity (41).

3. The frame according to claim 2, characterized in that: A sinking platform reinforcement portion (421) is provided on the first plate portion (42), and the sinking platform reinforcement portion (421) is recessed toward one side of the first mounting side plate (31).

4. The frame according to claim 2, characterized in that: The distance between the side of the second mounting side plate (32) that is laterally away from the first mounting side plate (31) and the first plate portion (42) is L1, and L1 satisfies the relationship: L1≥12 mm.

5. The frame according to claim 2, characterized in that: The thickness of the reinforcing plate (40) is D, and D satisfies the relationship: D≥2.5 mm.

6. The frame according to claim 2, characterized in that: At least one of the first plate portion (42) and the second plate portion (43) is provided with a weight-reducing hole (44).

7. The frame according to claim 2, characterized in that: The longitudinal beam (20) comprises a longitudinal beam upper plate (21) and a longitudinal beam lower plate (22), wherein the longitudinal beam lower plate (22) is located below the longitudinal beam upper plate (21) and is welded and fixed to the longitudinal beam upper plate (21), and the first mounting side plate (31) is welded and fixed to a lateral side of the longitudinal beam (20), and the first mounting side plate (31) is provided with an avoidance protrusion (311), and the avoidance protrusion (311) avoids the welding position of the longitudinal beam upper plate (21) and the longitudinal beam lower plate (22).

8. The frame according to claim 7, characterized in that: At least one of the two second mounting side plates (32) is welded to the lower side of the longitudinal beam lower plate (22) to form a first weld bead (321); the first mounting side plate (31) is welded and fixed to a lateral side of the longitudinal beam lower plate (22) to form a second weld bead (312); the second weld bead (312) is connected to the first weld bead (321); the length of the second weld bead (312) is L2, and L2 satisfies the relationship: L2≥10 mm.

9. The frame according to claim 1, characterized in that: It also includes a longitudinal reinforcement beam (50), which is connected between the mounting bracket (30) and the cross beam (10).

10. A vehicle, characterized in that: include: The frame (100) according to any one of claims 1 to 9.

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