Auxiliary frame middle mounting structure and vehicle

Abstract

The utility model provides an auxiliary frame middle installation structure and a vehicle. The auxiliary frame middle installation structure comprises a threaded pipe arranged in a vehicle body, an installation arm arranged in the middle of an auxiliary frame and a bolt arranged in an installation hole in the top of the installation arm in a penetrating mode, and the bolt is connected into the threaded pipe in a threaded mode. A screwing section which is in threaded connection with the threaded pipe and a suspended section which is not in threaded connection with the threaded pipe are formed between the threaded pipe and the bolt, and the screwing section is located above the suspended section; a disengaging hole is formed in the top of the mounting arm and penetrates into the mounting hole from the edge of the mounting arm, and the bolt in the mounting hole can be disengaged through the disengaging hole. According to the middle installation structure of the auxiliary frame, the middle installation point of the auxiliary frame can fall off when a vehicle collides, so that the undershoot design of the auxiliary frame during collision can be achieved, invasion of a power assembly and the like into a cab is reduced, the middle of the auxiliary frame can be bent during collision, the energy absorption effect of the auxiliary frame can be improved, and the service life of the auxiliary frame is prolonged. Therefore, the collision safety of the whole vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle bodies, in particular to a sub-frame middle portion mounting structure. Meanwhile, the utility model also relates to a vehicle provided with the sub-frame middle portion mounting structure. Background Art

[0002] As the main connection structure between the subframe and the vehicle body, the subframe mounting point needs to have sufficient strength and durability in daily use. On the other hand, the subframe mounting point needs to fail stably and controllably during a collision, so that the subframe can fall off, increase the space for the powertrain to move backward, and reduce the amount of intrusion into the cockpit. However, the existing subframe has the problem that the middle mounting point does not fall off completely during a collision, causing the powertrain to hit the subframe and intrude backward, and the subframe itself does not absorb enough energy, which is not conducive to improving the collision safety of the entire vehicle. Utility Model Content

[0003] In view of this, the utility model aims to provide a sub-frame middle mounting structure to improve the collision safety of the vehicle.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A sub-frame middle mounting structure comprises a threaded tube arranged in a vehicle body, a mounting arm arranged in the middle of the sub-frame, and a bolt passing through a mounting hole at the top of the mounting arm, wherein the bolt is screwed into the threaded tube;

[0006] A screwed section and a non-screwed suspended section are formed between the threaded tube and the bolt, and the screwed section is located above the suspended section.

[0007] A release hole is provided on the top of the mounting arm. The release hole penetrates from the edge of the mounting arm to the mounting hole, and the bolt in the mounting hole can be released through the release hole.

[0008] Furthermore, a height of the suspended section in the axial direction of the bolt is greater than a height of the screwed section in the axial direction of the bolt.

[0009] Furthermore, the height of the suspended section in the axial direction of the bolt is not less than 25 mm, and the height of the screwed section in the axial direction of the bolt is not less than 18 mm.

[0010] Furthermore, the threaded tube is located in a vehicle body longitudinal beam in the vehicle body, and a reinforcing plate connected to the threaded tube is provided in the vehicle body longitudinal beam.

[0011] Furthermore, the reinforcing plate is in a "Z" shape and has a main board and connecting flanges at both ends of the main board; the side of the threaded tube is connected to the main board, and the connecting flanges at both ends are respectively connected to two opposite side walls of the vehicle body longitudinal beam.

[0012] Furthermore, the reinforcing plate has a bottom flange located at the bottom of the main board, and the bottom flange is connected to the bottom wall of the vehicle body longitudinal beam; and / or, the main board is provided with a receiving groove matching the shape of the threaded tube, and a portion of the threaded tube is located in the receiving groove.

[0013] Furthermore, the mounting arm includes a first mounting plate and a second mounting plate that are snap-fitted together, the top of the first mounting plate is arranged to extend outward relative to the top of the second mounting plate, and the mounting hole and the escape hole are arranged on the top of the first mounting plate.

[0014] Furthermore, the width of the escape hole is gradually reduced along the direction pointing into the mounting hole; and / or, viewed from the up and down direction of the whole vehicle, the escape hole is inclined so that the opening of the escape hole points to the side and front of the vehicle.

[0015] Further, the bottom of the mounting arm is connected to the subframe longitudinal beam in the subframe, and / or the subframe is a front subframe located below the front part of the vehicle body.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The sub-frame middle mounting structure described in the utility model forms a suspended section between the threaded tube and the bolt below the screw-on section, which can facilitate the bolt to break when the vehicle collides. At the same time, a disengagement hole is provided on the mounting arm, which can also facilitate the bolt to disengage from the mounting hole when the vehicle collides. Therefore, by utilizing the cooperation of the suspended section and the disengagement hole, the middle mounting point of the sub-frame can be disengaged when the vehicle collides, which can not only realize the downward rush design of the sub-frame when the collision occurs and reduce the intrusion of the powertrain and the like into the cockpit, but also help to realize the bending of the middle part of the sub-frame when the collision occurs, so as to improve the energy absorption effect of the sub-frame and reduce the intrusion into the front footwell position, thereby improving the safety of vehicle collision.

[0018] In addition, making the height of the suspended section greater than the screwing section can further facilitate the bolt to break during a collision. The limitation of the height of the screwing section can ensure the strength requirement of the connection between the middle part of the subframe and the vehicle body. By arranging a reinforcing plate in the vehicle body longitudinal beam, it is convenient to arrange the threaded tube in the vehicle body longitudinal beam and increase the stability of the threaded tube arrangement. The reinforcing plate is connected to the two opposite side walls of the vehicle body longitudinal beam through the connecting flanges at both ends, which can ensure the reliability of the reinforcing plate in the vehicle body longitudinal beam, and further ensure the stability of the threaded tube arrangement.

[0019] In addition, the bottom flange connected to the bottom wall of the vehicle body longitudinal beam is provided to further improve the stability of the reinforcement plate and the threaded tube in the vehicle body longitudinal beam. The receiving groove is provided on the main board, which is conducive to the connection between the main board and the threaded tube, and can improve the reliability of the connection between the two. The mounting hole and the escape hole are located on the first mounting plate, and the single-plate structure of the first mounting plate can be utilized, which is conducive to the formation of the escape hole and the escape of the bolt from the mounting hole. The width of the escape hole is gradually reduced, which can ensure the reliability of the bolt installation on the basis of achieving the escape of the bolt. The escape hole is inclined and the opening is pointed to the front side of the vehicle, which is conducive to the escape of the bolt along the escape hole when the vehicle collides.

[0020] Another object of the present invention is to provide a vehicle, wherein a subframe is provided in the vehicle, and a middle portion of the subframe is installed in a vehicle body through the subframe middle portion installation structure as described above.

[0021] The vehicle described in the utility model, by configuring the above-mentioned subframe middle mounting structure, can not only realize the downward rush design of the subframe during a collision, reducing the intrusion of the powertrain and the like into the cockpit, but also help to realize the bending of the middle part of the subframe during a collision, which can improve the energy absorption effect of the subframe and reduce the intrusion into the front footwell position, thereby improving the safety quality of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0023] Figure 1 It is a structural schematic diagram of the sub-frame middle mounting structure of the embodiment of the utility model when it is assembled on the vehicle body;

[0024] Figure 2 This is a schematic diagram of the structure of the vehicle body longitudinal beam according to an embodiment of the utility model;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure shown in another viewing angle;

[0026] Figure 4 for Figure 3 A schematic diagram of the internal structure of the structure shown;

[0027] Figure 5 It is a structural schematic diagram of the threaded pipe and the reinforcing plate when assembled according to an embodiment of the utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the reinforcement plate according to an embodiment of the utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the threaded pipe and the bolt when they are assembled according to the embodiment of the utility model;

[0030] Figure 8 It is a structural schematic diagram of the front subframe according to an embodiment of the utility model;

[0031] Fig. 9 This is a structural schematic diagram of the first mounting plate according to an embodiment of the utility model;

[0032] Fig.10 and Fig.11 for Fig. 9 Structural schematic diagrams of the structure shown at other viewing angles;

[0033] Fig.12 This is a schematic structural diagram of the second mounting plate according to an embodiment of the utility model;

[0034] Fig.13 for Fig.12 A schematic diagram of the structure shown in another viewing angle;

[0035] Description of reference numerals:

[0036] 11. longitudinal beam of the vehicle body; 111. side wall; 112. bottom wall; 113. top wall; 114. reinforcing plate; 1141. main plate; 1142. connecting flange; 1143. bottom flange; 1144. receiving groove; 12. front shock tower; 13. side beam of front wheel housing; 14. lower cross beam of front windshield; 15. front wall panel; 16. A-pillar;

[0037] 21, mounting arm; 211, first mounting plate; 2111, mounting hole; 2112, escape hole; 212, second mounting plate; 22, auxiliary frame longitudinal beam; 23, auxiliary frame front cross beam; 24, auxiliary frame rear cross beam;

[0038] 31. Threaded pipe; 32. Bolt; 33. Screw-on section; 34. Suspended section;

[0039] h1, the height dimension of the screwing section; h2, the height dimension of the suspended section; k, the width dimension of the escape hole. DETAILED DESCRIPTION

[0040] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0041] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] Taking the vehicle in which the subframe middle mounting structure described in the utility model is located as an example, the directional words such as "up, down, left, right, front, and back" used in the embodiment are defined based on the up and down direction (also called the height direction, or the Z direction of the whole vehicle), the left and right direction (also called the width direction, or the Y direction of the whole vehicle), and the front and rear direction (also called the length direction, or the X direction of the whole vehicle). "Inside and outside" are defined based on the contour of the corresponding parts. For example, "inside" and "outside" are defined based on the contour of the vehicle, and the side of the vehicle contour close to the middle of the vehicle is "inside", and the opposite is "outside".

[0043] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0044] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0045] Embodiment 1

[0046] The present embodiment relates to a subframe middle mounting structure, which can not only realize the downward rush design of the subframe during a collision and reduce the intrusion of the powertrain and the like into the cockpit, but also improve the energy absorption effect of the subframe and reduce the intrusion into the front footwell position, thereby greatly improving the collision performance of the entire vehicle.

[0047] In terms of overall structure, Figures 1 to 13 As shown, the sub-frame middle mounting structure of this embodiment includes a threaded tube 31 arranged in the vehicle body, a mounting arm 21 arranged in the middle of the sub-frame, and a bolt 32 passing through a mounting hole 2111 arranged at the top of the mounting arm 21, and the bolt 32 is screwed into the threaded tube 31.

[0048] Furthermore, a screw-on section 33 and a suspended section 34 that are not screw-on are formed between the threaded tube 31 and the bolt 32, and the screw-on section 33 is located above the suspended section 34. A release hole 2112 is provided at the top of the mounting arm 21, and the release hole 2112 penetrates from the edge of the mounting arm 21 to the mounting hole 2111, and the bolt 32 in the mounting hole 2111 can be released through the release hole 2112.

[0049] It is worth mentioning that the provision of the suspended section 34 in this embodiment can facilitate the breaking of the bolt 32 when the vehicle collides, and the provision of the escape hole 2112 can facilitate the escape of the bolt 32 from the mounting hole 2111 when the vehicle collides, so as to realize the detachment of the middle mounting point of the sub-frame.

[0050] This not only enables the subframe to have a downward thrust design during a collision and reduce the intrusion of the powertrain into the cockpit, but also helps to achieve the bending of the middle part of the subframe during a collision to improve the energy absorption effect of the subframe and reduce the intrusion into the front footwell.

[0051] Based on the above overall introduction, specifically, in this embodiment, as a preferred implementation form, combined with Figure 1 and Figure 8 As shown, the bottom of the mounting arm 21 is connected to a sub-frame longitudinal beam 22 in the sub-frame, and in a specific implementation, the sub-frame may preferably be a front sub-frame located below the front part of the vehicle body.

[0052] Of course, the related structural parts not mentioned in the front subframe of the present embodiment can refer to the various structures in the front subframe well known to those skilled in the art. For example, the front subframe includes two subframe longitudinal beams 22 arranged opposite to each other on the left and right, and a subframe front cross beam 23 and a subframe rear cross beam 24 arranged between the two subframe longitudinal beams 22.

[0053] At the same time, each sub-frame longitudinal beam 22 is preferably provided with a mounting arm 21 located at a middle mounting point, so as to improve the reliability of the connection with the vehicle body when there is no collision.

[0054] In addition, in this embodiment, as a preferred implementation form, see Figure 7 As shown, the height h2 of the suspended section 34 in the axial direction of the bolt 32 is greater than the height h1 of the screwing section 33 in the axial direction of the bolt 32. Thus, the height h2 of the suspended section 34 can be greater than the height h1 of the screwing section 33, which can further facilitate the bolt 32 to break when it collides.

[0055] Secondly, in this embodiment, as a preferred implementation form, the height h2 of the suspended section 34 in the axial direction of the bolt 32 is not less than 25 mm, and the height h1 of the screwing section 33 in the axial direction of the bolt 32 is not less than 18 mm. It can be understood that the limitation on the height of the screwing section 33 can ensure the strength requirement of the connection between the middle part of the subframe and the vehicle body.

[0056] In specific implementation, under the condition that h1≥18mm and h2≥25mm are satisfied, the values ​​of h1 and h2 can be set and adjusted according to the actual connection and detachment requirements of the middle mounting point of the subframe, for example, h1 is specifically 18mm or 20mm, h2 is specifically 25mm or 27mm, etc.

[0057] In addition, in this embodiment, as a preferred implementation form, see Figures 2 to 4 As shown, the threaded tube 31 is located in the body longitudinal beam 11 of the vehicle body, and a reinforcing plate 114 connected to the threaded tube 31 is provided in the body longitudinal beam 11. The advantage of such a setting is that it is convenient to arrange the threaded tube 31 in the body longitudinal beam 11 and can increase the stability of the setting of the threaded tube 31.

[0058] To expand, in this embodiment, as a preferred implementation form, see Figure 5 and Figure 6 As shown, the reinforcing plate 114 is in a "Z" shape and has a main plate 1141 and connecting flanges 1142 at both ends of the main plate 1141. At the same time, the side of the threaded tube 31 is connected to the main plate 1141, and the connecting flanges 1142 at both ends are respectively connected to the two opposite side walls 111 of the vehicle body longitudinal beam 11.

[0059] Here, the reinforcing plate 114 is connected to the two opposite side walls 111 of the vehicle body longitudinal beam 11 through the connecting flanges 1142 at both ends, which can ensure the reliability of the reinforcing plate 114 in the vehicle body longitudinal beam 11, and further ensure the stability of the threaded tube 31. In the specific structure, the reinforcing plate 114 is connected to the vehicle body longitudinal beam 11 and the threaded tube 31 by welding, which helps to meet the connection strength requirements.

[0060] It should be mentioned that all structures not mentioned in the vehicle body of the present embodiment may refer to relevant structural parts in common vehicle body assemblies in the prior art, such as two vehicle body longitudinal beams 11 arranged opposite to each other on the left and right, A-pillars 16 connected to the rear ends of the vehicle body longitudinal beams 11, a front panel 15 and a front windshield lower cross beam 14 arranged between the left and right A-pillars 16, and a front shock tower 12 and a front wheel housing side beam 13 arranged above each vehicle body longitudinal beam 11.

[0061] At the same time, the vehicle body longitudinal beam 11 of the present embodiment is mainly formed by buckling a longitudinal beam inner plate and a longitudinal beam outer plate, and forms a longitudinal beam cavity surrounded by the above-mentioned two side walls 111, the bottom wall 112 and the top wall 113, and the threaded tube 31 and the reinforcing plate 114 are located in the longitudinal beam cavity.

[0062] In a specific implementation, the bottom wall 112 of the vehicle body longitudinal beam 11 is also provided with a connecting through hole arranged corresponding to the threaded tube 31, so that the bolt 32 on the mounting arm 21 passes through the connecting through hole and is screwed to the threaded tube 31. At the same time, since the structures of the vehicle body longitudinal beams 11 on the left and right sides are basically the same and can be mirror images of each other visually, the vehicle body longitudinal beam 11 on the left side is taken as an example for specific description in this embodiment.

[0063] Secondly, the reinforcing plate 114 of the present embodiment is in a "Z" shape, which means that it is roughly in a "Z" shape in the Z direction of the vehicle, and is not the letter "Z" in the strict sense. In specific implementation, the reinforcing plate 114 also has a structural trend that matches the connection requirements with the threaded tube 31 and the two side walls 111.

[0064] And, still Figure 6 As shown, in this embodiment, as a preferred implementation form, the reinforcing plate 114 has a bottom flange 1143 located at the bottom of the main plate 1141, and the bottom flange 1143 is connected to the bottom wall 112 of the vehicle body longitudinal beam 11. Thus, the stability of the reinforcing plate 114 and the threaded tube 31 in the vehicle body longitudinal beam 11 can be further improved.

[0065] At the same time, as a preferred implementation form, the main board 1141 of this embodiment is provided with a receiving groove 1144 matching the shape of the threaded tube 31, and a portion of the threaded tube 31 is located in the receiving groove 1144. Such a configuration can increase the contact area between the main board 1141 and the threaded tube 31, facilitate the connection between the two, and improve the reliability of the connection between the two.

[0066] In addition, in this embodiment, as a preferred implementation form, see Figures 8 to 13 As shown, the mounting arm 21 includes a first mounting plate 211 and a second mounting plate 212 that are snap-fitted together, the top of the first mounting plate 211 is arranged to extend outward relative to the top of the second mounting plate 212, and the mounting hole 2111 and the escape hole 2112 are arranged on the top of the first mounting plate 211.

[0067] It is understandable that by locating the mounting hole 2111 and the escape hole 2112 on the first mounting plate 211 , the single-plate structure of the first mounting plate 211 can be utilized to facilitate forming the escape hole 2112 and facilitating the bolt 32 to escape from the mounting hole 2111 .

[0068] At this time, see Fig.11 As shown, in this embodiment, as a preferred implementation form, the width k of the escape hole 2112 is gradually reduced along the direction pointing into the mounting hole 2111. The advantage of such a setting is that the reliability of the installation of the bolt 32 can be ensured on the basis of achieving the escape of the bolt 32.

[0069] Furthermore, as a preferred embodiment, in this embodiment, the escape hole 2112 is tilted from the vertical direction of the vehicle, so that the opening of the escape hole 2112 points to the side and front of the vehicle. Here, the escape hole 2112 is tilted and the opening points to the side and front of the vehicle, which is conducive to the bolt 32 being released along the escape hole 2112 when the vehicle collides.

[0070] It is worth mentioning that in the specific implementation, reference is still made to Figures 9 to 13 As shown, the first mounting plate 211 and the second mounting plate 212 of the present embodiment are both visually roughly U-shaped to have good structural strength. At the same time, the two are snap-fitted together to form a cavity, and the strong structural strength of the cavity can be used to further enhance the structural strength of the mounting arm 21. In order to facilitate the top of the first mounting plate 211 to extend outward relative to the top of the second mounting plate 212, the second mounting plate 212 is snap-fitted into the first mounting plate 211.

[0071] The sub-frame middle mounting structure of the present embodiment forms a suspended section 34 between the threaded tube 31 and the bolt 32 below the screw-on section 33, which can facilitate the breaking of the bolt 32 when the vehicle collides. Meanwhile, a disengagement hole 2112 is provided on the mounting arm 21, which can facilitate the disengagement of the bolt 32 from the mounting hole 2111 when the vehicle collides. Thus, by utilizing the cooperation between the suspended section 34 and the disengagement hole 2112, the middle mounting point of the sub-frame can be disengaged when the vehicle collides, which can not only realize the downward rush design of the sub-frame when the collision occurs and reduce the intrusion of the powertrain and the like into the cockpit, but also help to realize the bending of the middle part of the sub-frame when the collision occurs, so as to improve the energy absorption effect of the sub-frame and reduce the intrusion into the front footwell position, thereby improving the safety of the vehicle collision.

[0072] Embodiment 2

[0073] This embodiment relates to a vehicle, in which a subframe is provided, and the middle portion of the subframe is installed in the vehicle body through the subframe middle portion installation structure in the first embodiment.

[0074] The vehicle of this embodiment, by adopting the subframe middle mounting structure in the first embodiment, can not only realize the downward rush design of the subframe during a collision and reduce the intrusion of the powertrain and the like into the cockpit, but also improve the energy absorption effect of the subframe and reduce the intrusion into the front footwell position, thereby helping to improve the collision safety and market competitiveness of the entire vehicle.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A subframe middle mounting structure, characterized in that: It comprises a threaded tube (31) arranged in a vehicle body, a mounting arm (21) arranged in the middle of a sub-frame, and a bolt (32) passing through a mounting hole (2111) arranged at the top of the mounting arm (21), wherein the bolt (32) is screwed into the threaded tube (31); A screwed-on section (33) and a non-screwed-on suspended section (34) are formed between the threaded tube (31) and the bolt (32), and the screwed-on section (33) is located above the suspended section (34); A disengagement hole (2112) is provided at the top of the mounting arm (21), the disengagement hole (2112) penetrates from the edge of the mounting arm (21) to the mounting hole (2111), and the bolt (32) in the mounting hole (2111) can be disengaged through the disengagement hole (2112).

2. The subframe middle mounting structure according to claim 1, characterized in that: The height of the suspended section (34) in the axial direction of the bolt (32) is greater than the height of the screw-on section (33) in the axial direction of the bolt (32).

3. The subframe middle mounting structure according to claim 2, characterized in that: The height (h1) of the suspended section (34) in the axial direction of the bolt (32) is not less than 25 mm, and the height (h2) of the screw-on section (33) in the axial direction of the bolt (32) is not less than 18 mm.

4. The subframe middle mounting structure according to claim 1, characterized in that: The threaded tube (31) is located in a vehicle body longitudinal beam (11) in the vehicle body, and a reinforcing plate (114) connected to the threaded tube (31) is provided in the vehicle body longitudinal beam (11).

5. The subframe middle mounting structure according to claim 4, characterized in that: The reinforcing plate (114) is in a "Z" shape and comprises a main plate (1141) and connecting flanges (1142) located at two ends of the main plate (1141); The side of the threaded tube (31) is connected to the main board (1141), and the connecting flanges (1142) at both ends are respectively connected to two opposite side walls (111) of the vehicle body longitudinal beam (11).

6. The subframe middle mounting structure according to claim 5, characterized in that: The reinforcing plate (114) has a bottom flange (1143) located at the bottom of the main plate (1141), and the bottom flange (1143) is connected to the bottom wall (112) of the vehicle body longitudinal beam (11); and / or, The main board (1141) is provided with a receiving groove (1144) matching the shape of the threaded tube (31), and a portion of the threaded tube (31) is located in the receiving groove (1144).

7. The subframe middle mounting structure according to claim 1, characterized in that: The mounting arm (21) comprises a first mounting plate (211) and a second mounting plate (212) which are snap-fitted together, the top of the first mounting plate (211) is arranged to protrude relative to the top of the second mounting plate (212), and the mounting hole (2111) and the escape hole (2112) are arranged on the top of the first mounting plate (211).

8. The sub-frame middle mounting structure according to claim 7, characterized in that: The width of the escape hole (2112) is gradually reduced along the direction pointing into the mounting hole (2111); and / or, When viewed from the upper and lower directions of the vehicle, the escape hole (2112) is arranged to be inclined so that the opening of the escape hole (2112) points to the side and front of the vehicle.

9. The subframe middle mounting structure according to any one of claims 1 to 8, characterized in that: The bottom of the mounting arm (21) is connected to a sub-frame longitudinal beam (22) in the sub-frame, and / or the sub-frame is a front sub-frame located below the front part of the vehicle body.

10. A vehicle, characterized in that: A subframe is provided in the vehicle, and a middle portion of the subframe is mounted to the vehicle body by means of the subframe middle portion mounting structure according to any one of claims 1 to 9.

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