Lower protection plate mounting assembly and vehicle

Abstract

The utility model discloses a lower guard plate mounting assembly and a vehicle, the lower guard plate mounting assembly comprises a lower guard plate, a first mounting part, a second mounting part, a first connecting part and a second connecting part, the lining assembly is arranged in the first mounting part, the lining assembly comprises an elastic piece, a sleeve and a first cover plate, the elastic piece is arranged outside the sleeve in a sleeving mode and arranged in the first mounting part, and the first cover plate is arranged between the sleeve and the frame in a padding mode; the fastening piece penetrates through the sleeve, and the first cover plate is connected with the frame. When the frame bears large torque to drive the lower protection plate to twist, the elastic piece deforms to reduce stress and damage borne by the first installation part. And the first cover plate is arranged between the first mounting part and the frame, so that damage to a paint film on the surface of the frame cross beam caused by dislocation of the lower protection plate on the frame cross beam during deformation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a lower guard plate installation assembly and a vehicle. Background Art

[0002] In the related art, the lower guard plate is installed under the whole vehicle. The installation points at both ends in the width direction are far apart. During the deformation process of the installation position, the torsion, extrusion and pulling forces are large, and the risk of sheet metal cracking at the installation point is large. The frame beam at the installation point is assembled by bolts, and the guard plate deforms completely with the torsion deformation of the frame, and is subject to large stress and damage; the plane of the installation point is in contact with the frame beam as a whole, and there is a risk of scratching the paint film of the frame beam when it is dislocated, which is not conducive to rust prevention. Utility Model Content

[0003] 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 lower guard plate installation assembly, when the frame is subjected to a large torque and drives the lower guard plate to twist, the elastic member is deformed to reduce the stress and damage to the first installation part; the first cover plate is prevented from slipping on the frame crossbeam when deformed, causing damage to the paint film on the surface of the frame crossbeam.

[0004] The utility model also provides a vehicle.

[0005] According to the first aspect of the utility model, the lower guard plate installation assembly includes: a lower guard plate, a first installation portion is arranged on the rear side of the lower guard plate; a bushing assembly, the bushing assembly is arranged in the first installation portion, the bushing assembly includes: an elastic member, a sleeve and a first cover plate, the elastic member is sleeved outside the sleeve and arranged on the first installation portion, the first cover plate is padded between the sleeve and the frame; a fastener, the fastener passes through the sleeve and the first cover plate to be connected to the frame.

[0006] According to the lower guard plate installation assembly of the embodiment of the utility model, when the frame is subjected to a large torque that drives the lower guard plate to twist, the elastic member deforms to reduce the stress and damage to the first mounting portion; the first cover plate is arranged between the first mounting portion and the frame to prevent the lower guard plate from shifting on the frame crossbeam during deformation, causing damage to the paint film on the surface of the frame crossbeam.

[0007] According to some embodiments of the utility model, the fastener includes: a first part and a second part, the first part and the second part are connected; the bushing assembly also includes: a second cover plate, the second cover plate is arranged between the sleeve and the first part, and the second part passes through the second cover plate, the sleeve, and the first cover plate in sequence to be connected to the frame.

[0008] According to some embodiments of the utility model, a first step is provided on the sleeve, and the first cover plate is clamped between the first step and the frame; and / or a second step is provided on the sleeve, and the second cover plate is clamped between the second step and the fastener.

[0009] According to some embodiments of the present invention, a flange is formed on the peripheral side of the first mounting portion, the flange is bent downward, and the outer periphery of the elastic member is connected to the flange.

[0010] According to some embodiments of the present utility model, a plurality of upwardly protruding mounting bosses are provided on the rear side of the lower guard plate, and the first mounting portion is provided on the top of the mounting bosses.

[0011] According to some embodiments of the utility model, a plurality of second mounting portions are provided on the front side of the lower guard plate, a side of the second mounting portion facing away from the first mounting portion is provided as an opening, and the second mounting portion is connected to the vehicle frame.

[0012] According to some embodiments of the utility model, the lower guard plate is provided with a plurality of upwardly protruding rib grooves, and at least one first weight-reducing hole is provided on the rib grooves, and the extension direction of any of the rib grooves is the line connecting one of the second mounting parts and one of the first mounting parts.

[0013] According to some embodiments of the present invention, a plurality of rib grooves are interconnected.

[0014] According to some embodiments of the utility model, a plurality of second weight-reducing holes arranged at intervals along the width direction and extending along the width direction are provided on the front side of the lower guard plate, a guide protrusion is provided at the rear end of the second weight-reducing hole, and the upper surface of the guide protrusion extends upwardly at an angle from front to rear.

[0015] The vehicle according to the second embodiment of the utility model includes: a vehicle frame; the lower guard plate installation assembly, and the lower guard plate is fixedly connected to the vehicle frame.

[0016] 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

[0017] 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:

[0018] Figure 1 It is a structural schematic diagram of a lower guard plate installation assembly in one direction according to an embodiment of the utility model;

[0019] Figure 2It is a structural schematic diagram of another direction of the lower guard plate installation assembly according to an embodiment of the utility model;

[0020] Figure 3 is based on Figure 2 A partial schematic diagram of AA;

[0021] Figure 4 It is a structural schematic diagram of the lower guard plate installation assembly in another direction according to an embodiment of the utility model;

[0022] Figure 5 It is a structural schematic diagram of another direction of the lower guard plate installation assembly according to an embodiment of the utility model;

[0023] Figure 6 is based on Figure 5 A partial schematic diagram BB;

[0024] Figure 7 is an exploded view of a lower guard plate installation assembly according to an embodiment of the utility model;

[0025] Figure 8 It is an exploded view of a bushing assembly according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] 100. Lower guard plate installation assembly;

[0028] 10. Lower guard plate; 11. Mounting boss; 111. First mounting portion; 12. Second mounting portion; 121. Opening; 13. Rib groove; 14. First lightening hole; 15. Second lightening hole; 16. Third lightening hole; 17. Guide protrusion; 18. Flanging;

[0029] 20. Bushing assembly; 21. Elastic member; 22. Sleeve; 221. First step; 222. Second step; 23. First cover plate; 24. Second cover plate. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference below Figure 1-Figure 8 The lower guard plate installation assembly 100 according to the embodiment of the utility model is described, and a vehicle having the lower guard plate installation assembly 100 is also proposed.

[0032] Notice: Figure 1-Figure 8 The left and right direction in is the width direction.

[0033] Combination Figure 1-Figure 7As shown, the lower guard plate installation assembly 100 includes: a lower guard plate 10, a bushing assembly 20 and fasteners. The lower guard plate 10 is located below the steering gear and the exhaust pipe, and is used to protect the steering gear and other components at the bottom of the vehicle and block sand, stones, obstacles, etc.

[0034] The rear side of the lower guard plate 10 is provided with a first mounting portion 111, and the bushing assembly 20 is provided in the first mounting portion 111. The fastener passes through the bushing assembly 20 and is connected to the vehicle frame to fix the lower guard plate 10 on the vehicle frame, thereby completing the installation and fixation of the lower guard plate 10. The bushing assembly 20 is sandwiched between the fastener and the lower guard plate 10, so that when the vehicle is in off-road conditions and the frame is subjected to a large torque to drive the lower guard plate 10 to twist, the bushing assembly 20 can be deformed to reduce the deformation of the installation point of the lower guard plate 10, thereby reducing the stress and damage to the installation point of the lower guard plate 10.

[0035] There may be a plurality of first mounting portions 111 , which are spaced apart along the width direction at the rear side of the lower guard plate 10 , and there may be a plurality of bushing assemblies 20 , which are respectively and correspondingly arranged at the plurality of first mounting portions 111 .

[0036] like Figure 8 As shown, the bushing assembly 20 includes: an elastic member 21, a sleeve 22 and a first cover plate 23. The elastic member 21 is sleeved on the outer periphery of the sleeve 22, and the elastic member 21 and the sleeve 22 are both arranged in the first mounting portion 111. The first cover plate 23 is cushioned between the sleeve 22 and the frame, and the fastener passes through the sleeve 22 and the first cover plate 23 to be connected to the frame.

[0037] That is to say, the first mounting portion 111 is a first mounting hole, the elastic member 21 is provided through the first mounting hole, and the elastic member 21 has a deformable characteristic. Specifically, the elastic member 21 is sleeved on the outer periphery of the sleeve 22, and the inner periphery of the elastic member 21 and the part of the outer periphery of the sleeve 22 can be connected by bonding, such as vulcanization connection; the outer periphery of the elastic member 21 and the inner periphery of the first mounting hole can be connected by bonding, such as vulcanization connection. The elastic member 21 is arranged between the first mounting portion 111 and the sleeve 22, that is, the outer periphery of the elastic member 21 and the inner periphery of the first mounting hole match, and the inner periphery of the elastic member 21 and the outer periphery of the sleeve 22 match to separate the first mounting hole and the sleeve 22. The fastener passes through the sleeve 22 and is connected to the frame. When the vehicle is in off-road conditions and the frame is subjected to a large torque to drive the lower guard plate 10 to twist, the elastic member 21 is deformed to reduce the deformation of the mounting point of the lower guard plate 10 (i.e., the first mounting portion 111), thereby reducing the stress and damage to the mounting point of the lower guard plate 10.

[0038] Combination Figure 7 and Figure 8As shown, the projection shape of the first cover plate 23 in the axial direction of the sleeve 22 is a circular ring. The first cover plate 23 is cushioned between the sleeve 22 and the frame, so that the lower guard plate 10 at the position of the first mounting portion 111 does not directly contact the frame, reducing the connection contact area between the lower guard plate 10 and the frame, thereby reducing the risk of scratching the frame paint surface caused by the mutual displacement of the lower guard plate 10 and the frame during vehicle movement. For example, the risk of scratching the frame crossbeam paint surface caused by the mutual displacement of the lower guard plate 10 and the frame crossbeam during vehicle movement is reduced.

[0039] Therefore, when the fastener passes through the sleeve 22 and the first cover plate 23 and is connected to the frame, even if the vehicle is on an off-road condition and the frame is subjected to a large torque that drives the lower guard plate 10 to twist, the elastic member 21 deforms to reduce the deformation of the mounting point of the lower guard plate 10 (i.e., the first mounting portion 111), thereby reducing the stress and damage to the mounting point of the lower guard plate 10; the first cover plate 23 is disposed between the first mounting portion 111 and the frame to prevent the lower guard plate 10 from shifting on the frame crossbeam during deformation, thereby causing damage to the paint film on the surface of the frame crossbeam.

[0040] In some embodiments, the fastener includes: a first part and a second part, the first part and the second part are connected; specifically, the outer diameter of the first part is larger than the second part, the second part passes through the first mounting part 111 and is connected to the frame, and the lower side of the first part abuts against the bushing assembly 20 to fix the bushing assembly 20 and the lower guard plate 10 to the frame.

[0041] Combination Figure 3 , Figure 6-Figure 8 As shown, the bushing assembly 20 further includes: a second cover plate 24, which is cushioned between the sleeve 22 and the first part, and the second part passes through the second cover plate 24, the sleeve 22, and the first cover plate 23 in sequence to be connected to the vehicle frame. Specifically, the second cover plate 24 abuts between the sleeve 22 and the first part, and the projection shape of the second cover plate 24 in the axial direction of the sleeve 22 is a circular ring, and the second cover plate 24 is a circular ring with a certain thickness. The second cover plate 24 is adapted to the sleeve 22 to increase the friction between the fastener and the bushing assembly 20, so that the fastener and the bushing assembly 20 are tightly connected. The second part of the fastener passes through the second cover plate 24, the sleeve 22, and the first cover plate 23 in sequence to be connected to the frame. The second cover plate 24 is arranged between the fastener and the sleeve 22 to avoid looseness between the second part and the sleeve 22 and to improve the connection strength between the sleeve 22 and the fastener; the first cover plate 23 is arranged between the lower guard plate 10 and the frame, and the lower guard plate 10 at the position of the first mounting portion 111 is not in direct contact with the frame, to avoid the lower guard plate 10 from shifting on the frame beam during deformation, causing damage to the paint film on the surface of the frame beam, resulting in reduced rust resistance of the frame beam.

[0042] according to Figure 3 , Figure 6 and Figure 8As shown, a first step 221 is provided on the sleeve 22 , and the second cover plate 24 is sandwiched between the first step 221 and the vehicle frame. Specifically, the first step 221 is arranged on the upper side of the sleeve 22, and the first step 221 includes: a first side wall and a first bottom wall, the first side wall is arranged around the circumference of the sleeve 22 and extends along the axial direction of the sleeve 22, the first bottom wall is arranged around the circumference of the sleeve 22 and extends perpendicular to the axial direction of the sleeve 22, the inner periphery of the first cover plate 23 is interference fit with the first side wall, and the lower side of the first cover plate 23 is interference fit with the first bottom wall, that is, the first cover plate 23 is interference fit with the first step 221, and the upper surface of the first cover plate 23 is abutted against the frame (such as the frame crossbeam), that is, the first cover plate 23 is clamped between the first step 221 and the frame, and the first step 221 allows the first cover plate 23 to be interference fit with the upper side of the sleeve 22, thereby improving the connection strength between the fastener and the bushing assembly 20 and ensuring the stability and reliability of the lower guard plate installation assembly 100.

[0043] Further, the sleeve 22 is provided with a second step 222, and the second cover plate 24 is sandwiched between the second step 222 and the fastener. Specifically, the second step 222 is provided on the lower side of the sleeve 22, and the second step 222 includes: a second side wall and a second bottom wall, the second side wall is provided around the circumference of the sleeve 22 and extends along the axial direction of the sleeve 22, the second bottom wall is provided around the circumference of the sleeve 22 and extends perpendicularly to the axial direction of the sleeve 22, the inner circumference of the second cover plate 24 is interference-fitted with the second side wall, the upper side of the second cover plate 24 is interference-fitted with the second bottom wall, the lower surface of the second cover plate 24 is interference-fitted with the second portion, and the second step 222 enables the second cover plate 24 to be interference-fitted with the lower side of the sleeve 22, thereby improving the connection strength between the fastener and the bushing assembly 20.

[0044] like Figure 3 and Figure 6 The first mounting portion 111 is shown as having a flange 18 formed around the periphery, the flange 18 is bent downward, and the outer periphery of the elastic member 21 is connected to the flange 18. Specifically, the flange 18 is connected to the periphery of the first mounting hole, the flange 18 is bent in a direction away from the vehicle frame, the flange 18 is connected to the elastic member 21, the bushing assembly 20 is connected to the lower guard plate 10, and the flange 18 and the outer periphery of the elastic member 21 can be connected by vulcanization. First, the elastic member 21, the sleeve 22 and the flange 18 are connected, and then the first cover plate 23 is matched on the first step 221, and the second cover plate 24 is matched on the second step 222; finally, the fastener passes through the second cover plate 24, the sleeve 22 and the first cover plate 23 in sequence and is fixedly connected to the vehicle frame.

[0045] Reference Figure 1 , Figure 2 , Figure 4-Figure 5 , Figure 7As shown, the rear side of the lower guard plate 10 is provided with a plurality of upwardly protruding mounting bosses 11, and the top of the mounting bosses 11 is provided with a first mounting portion 111. Specifically, the mounting bosses 11 refer to the upwardly protruding mounting portion on the lower guard plate 10 that is mounted in close contact with the vehicle frame. When the lower guard plate 10 is mounted on the vehicle frame, the top of the mounting bosses 11 contacts the vehicle frame (e.g., the frame crossbeam) to prevent the rear edge of the lower guard plate 10 from being completely mounted in close contact with the vehicle body. The mounting bosses 11 in the utility model reduce the connection contact area between the lower guard plate 10 and the vehicle frame, thereby reducing the risk of scratching the frame paint surface caused by the mutual displacement of the lower guard plate 10 and the frame during vehicle movement. For example, the risk of scratching the frame crossbeam paint surface caused by the mutual displacement of the lower guard plate 10 and the frame crossbeam during vehicle movement is reduced.

[0046] Furthermore, a plurality of second mounting portions 12 are provided on the front side of the lower guard plate 10, and an opening 121 is provided on the side of the second mounting portion 12 facing away from the first mounting portion 111, and the second mounting portion 12 is connected to the frame. Specifically, the second mounting portion 12 overlaps the frame, and the second mounting portion 12 is provided with an opening 121 facing forward, and the opening 121 is U-shaped. When installing with the frame, bolts can be pre-installed at the mounting point on the frame, and the U-shaped opening 121 can be directly inserted into the thread position of the bolt corresponding to the position of the U-shaped opening 121, and then the bolt can be tightened to achieve installation, which is convenient for installation.

[0047] Reference Figure 1 , Figure 2 , Figure 4-Figure 5 , Figure 7 As shown, the lower guard plate 10 is provided with a plurality of rib grooves 13 protruding upward, and at least one first weight-reducing hole 14 is provided on the rib groove 13. Specifically, the rib groove 13 protrudes upward, and reinforcing ribs are provided on the circumference of the rib groove 13 to improve the structural strength of the rib groove 13, that is, to improve the modal performance and torsional stiffness of the lower guard plate 10. At least one first weight-reducing hole 14 is provided on any rib groove 13, and the first weight-reducing hole 14 can reduce the weight of the lower guard plate 10 while ensuring the structural strength of the rib groove 13.

[0048] The extending direction of any rib groove 13 is the line connecting one of the second mounting parts 12 and one of the first mounting parts 111, that is, any rib groove 13 extends between one of the second mounting parts 12 and one of the first mounting parts 111, enhancing the structural rigidity and strength of the local position between one of the second mounting parts 12 and one of the first mounting parts 111, which can play a good reinforcing role under the conditions of vehicle torsion and up and down bouncing, and can also play a good protective strength when the vehicle falls and hits the column.

[0049] In some embodiments, multiple rib grooves 13 are interconnected. Multiple rib grooves 13 are connected to form a continuous structure. In one embodiment of the utility model, there can be three first mounting parts 111, two second mounting parts 12, and four rib grooves 13. The four rib grooves 13 can be interconnected, and the projection shape of the four rib grooves 13 on the lower guard plate 10 is "W". The four rib grooves 13 form a continuous structure, which uniformly improves the local structural strength and stiffness of the lower guard plate 10, and improves the modal performance and torsional stiffness of the lower guard plate 10.

[0050] like Figure 1 and Figure 2 As shown, the front side of the lower guard plate 10 is provided with a plurality of second weight-reducing holes 15 arranged at intervals along the width direction and extending along the width direction, and the rear end of the second weight-reducing hole 15 is provided with a guide protrusion 17 protruding upward, and the upper surface of the guide protrusion 17 extends upwardly from front to rear. Specifically, the second weight-reducing holes 15 extend along the width direction at the front side of the lower guard plate 10, and a plurality of second weight-reducing holes 15 are arranged at intervals along the width direction, the second weight-reducing holes 15 are arranged at the rear side of the second mounting portion 12, and at least one second weight-reducing hole 15 can be arranged between two connected rib grooves 13. The guide protrusion 17 protrudes upward, and the guide protrusion 17 is located at the rear end of the second weight-reducing hole 15, and the upper surface of the guide protrusion 17 extends upwardly from front to rear.

[0051] When the vehicle is running, the airflow can flow from the second weight-reducing hole 15 to the exhaust pipe above the lower guard plate 10, and move upward along the guide protrusion 17 to take away the heat emitted by the upper exhaust pipe, thereby achieving the purpose of reducing the temperature inside the vehicle cabin.

[0052] In some embodiments, a plurality of third weight-reducing holes 16 are further provided on the lower guard plate 10. The third weight-reducing holes 16 are spaced apart from the rib grooves 13, the first mounting portion 111, the second mounting portion 12, and the second weight-reducing holes 15 to reduce the weight of the lower guard plate 10 and achieve lightweighting of the vehicle.

[0053] The vehicle according to the second embodiment of the utility model includes: a frame; a lower guard plate installation assembly 100, and the lower guard plate 10 is fixedly connected to the frame. The lower guard plate 10 is fixedly connected to the frame through a bushing assembly 20. When the frame is subjected to a large torque and drives the lower guard plate 10 to twist, the bushing assembly 20 can be deformed to reduce the local deformation of the lower guard plate 10, thereby reducing the stress and damage to the installation point of the lower guard plate 10. The first cover plate 23 is arranged between the lower guard plate 10 and the frame, so that the first mounting portion 111 is not in direct contact with the frame, thereby avoiding the problem that the lower guard plate 10 is displaced on the frame crossbeam during deformation, causing damage to the paint film on the surface of the frame and reducing the rust resistance of the frame.

[0054] In the description of the present invention, it should 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", "axial", "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.

[0055] 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.

[0056] 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 lower guard plate installation assembly, characterized in that: include: A lower guard plate (10), wherein a first mounting portion (111) is provided on the rear side of the lower guard plate (10); A bushing assembly (20), the bushing assembly (20) being arranged in the first mounting portion (111), the bushing assembly (20) comprising: an elastic member (21), a sleeve (22) and a first cover plate (23), the elastic member (21) being sleeved outside the sleeve (22) and arranged in the first mounting portion (111), and the first cover plate (23) being cushioned between the sleeve (22) and the vehicle frame; A fastener passes through the sleeve (22) and the first cover plate (23) and is connected to the vehicle frame.

2. The lower guard plate installation assembly according to claim 1 is characterized in that: The fastener comprises: a first portion and a second portion, wherein the first portion and the second portion are connected; The bushing assembly (20) further comprises: a second cover plate (24), wherein the second cover plate (24) is cushioned between the sleeve (22) and the first part, and the second part passes through the second cover plate (24), the sleeve (22), and the first cover plate (23) in sequence and is connected to the vehicle frame.

3. The lower guard plate installation assembly according to claim 2 is characterized in that: The sleeve (22) is provided with a first step (221), and the first cover plate (23) is sandwiched between the first step (221) and the frame; and / or, The sleeve (22) is provided with a second step (222), and the second cover plate (24) is sandwiched between the second step (222) and the fastener.

4. The lower guard plate installation assembly according to claim 2, characterized in that: A flange (18) is formed on the peripheral side of the first mounting portion (111), the flange (18) is bent downward, and the outer periphery of the elastic member (21) is connected to the flange (18).

5. The lower guard plate installation assembly according to claim 1, characterized in that: A plurality of upwardly protruding mounting bosses (11) are arranged on the rear side of the lower guard plate (10), and the first mounting portion (111) is arranged on the top of the mounting bosses (11).

6. The lower guard plate installation assembly according to claim 5, characterized in that: A plurality of second mounting portions (12) are arranged on the front side of the lower guard plate (10); a side of the second mounting portion (12) facing away from the first mounting portion (111) is arranged as an opening (121); and the second mounting portion (12) is connected to the vehicle frame.

7. The lower guard plate installation assembly according to claim 6, characterized in that: The lower guard plate (10) is provided with a plurality of rib grooves (13) protruding upwards, and at least one first weight-reducing hole (14) is provided on the rib groove (13), and the extension direction of any rib groove (13) is a line connecting one of the second mounting parts (12) and one of the first mounting parts (111).

8. The lower guard plate installation assembly according to claim 7, characterized in that: The plurality of rib grooves (13) are interconnected.

9. The lower guard plate installation assembly according to claim 1, characterized in that: The front side of the lower guard plate (10) is provided with a plurality of second weight-reducing holes (15) spaced apart in the width direction and extending in the width direction, and the rear end of the second weight-reducing hole (15) is provided with an upwardly protruding guide protrusion (17), and the upper surface of the guide protrusion (17) extends upwardly at an angle from front to rear.

10. A vehicle, characterized in that: include: Frame; The lower guard plate installation assembly (100) according to any one of claims 1 to 9, wherein the lower guard plate (10) is fixedly connected to the vehicle frame.

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