Protective device for preventing automobile chassis from being scratched and automobile

Abstract

The invention relates to the technical field of automobile chassis, in particular to a protection device for preventing an automobile chassis from being scraped and a vehicle, and the protection device comprises a mounting seat which is used for being connected with a chassis with a battery pack arranged on the upper portion; the walking assembly is connected with the mounting base and comprises a driving part and a walking part, the driving part is connected with the walking part, the lowest point of the walking part is lower than the lowest point of the chassis and higher than the lowest point of the bottom of the wheel, and the driving part is used for driving the walking part to move when the walking part makes contact with the ground so as to generate driving force for assisting the vehicle in moving in the moving direction. Due to the fact that the lowest point of the walking part is lower than the lowest point of the chassis and higher than the lowest points of the bottoms of the wheels, when the vehicle passes through the small protrusions, the walking assembly can serve as an anti-collision piece, the probability that the small protrusions collide with the chassis is reduced, and when the vehicle passes through the large protrusions and jacks up the chassis of the vehicle, the walking part makes contact with the ground, and the driving part drives the walking part to move. The auxiliary vehicle moves in the moving direction to pass through the large projection.

Description

Technical Field

[0001] The invention relates to the technical field of automobile chassis, and in particular to a protective device for preventing automobile chassis from being scratched and a vehicle. Background Art

[0002] The chassis of new energy vehicles mainly includes the frame and battery pack. The battery is integrated into the battery pack using CTP and CTC technologies, and then the battery pack is connected to the body frame. This integrated technology has become the mainstream of new energy vehicle chassis manufacturing. Since the battery pack of electric vehicles is often installed on the chassis, the battery pack is easily damaged when the chassis of the vehicle is scratched, which will cause safety risks to the vehicle and high maintenance costs after the battery pack is damaged.

[0003] In the prior art, such as patent number CN221605906U, a high-strength and lightweight chassis body structure of a new energy vehicle includes a frame, a crossbeam is fixedly installed on the inner side of the frame, a battery pack is fixedly installed between the frame and the crossbeam, and a buffer reinforcement component is arranged between the battery pack and the frame, and the buffer reinforcement component includes a fixed slide bar, a movable guard plate, a buffer spring and a fixing bolt, and the fixed slide bar is fixedly connected to the bottom of both ends of the battery pack; in the technical solution provided by the utility model, by setting a buffer reinforcement component, specifically, when the chassis of the vehicle is hit by an external object, it will hit the movable guard plate, and then the movable guard plate will compress the buffer spring, causing the buffer spring to contract for buffering, thereby ensuring the same strength of the battery pack while improving the protection capability of the chassis battery pack to prevent the battery in the battery pack from catching fire.

[0004] However, the buffer reinforcement assembly is located on the lower side of the battery pack, which may reduce the ground clearance of some areas of the chassis. When the vehicle is traveling on a road with complex conditions, small bumps on the ground may be within the buffering stroke of the buffer reinforcement assembly. But if it passes over large bumps, the chassis of the vehicle may be lifted up, resulting in insufficient grip of the front or rear wheels, which may affect the driving of the vehicle. Summary of the invention

[0005] The present application provides a protective device and a vehicle for anti-scratch of an automobile chassis, which can solve the problem in the prior art that the buffer reinforcement component is located at the lower side of the battery pack, which may reduce the ground clearance of some areas of the chassis. When the vehicle is traveling on a road with complex road conditions, small protrusions on the ground may be within the buffering stroke of the buffer reinforcement component, but if it passes over a large protrusion, the chassis of the vehicle may be lifted up, resulting in insufficient grip of the front or rear wheels, which affects the driving of the vehicle.

[0006] In a first aspect, an embodiment of the present application provides a protective device for preventing a car chassis from being scratched, comprising:

[0007] A mounting base, which is used to connect to a chassis with a battery pack disposed thereon;

[0008] A walking assembly is connected to the mounting seat and includes a driving part and a walking part. The driving part is connected to the walking part. The lowest point of the walking part is lower than the lowest point of the chassis and higher than the lowest point of the bottom of the wheel. The driving part is used to drive the walking part to move when the walking part contacts the ground, so as to generate a driving force to assist the vehicle to move in the moving direction.

[0009] In one embodiment, the traveling assembly is movable relative to the mounting seat along the Z-axis direction of the vehicle, a buffer assembly is provided between the mounting seat and the traveling assembly, and the buffer assembly is located in the moving direction of the traveling assembly.

[0010] In one embodiment, a trigger component is further included, and the travel component is used to be electrically connected to the battery pack through the trigger component. When the travel component moves to the upper limit position, the trigger component connects the drive unit and the battery pack.

[0011] In one embodiment, the trigger assembly includes a first contact and a second contact, the first contact is arranged on the walking assembly, the second contact is arranged on the mounting seat, and is used to be electrically connected to the battery pack, and when the walking assembly moves to the upper limit position, the first contact and the second contact are electrically connected.

[0012] In one embodiment, the mounting seat is provided with a slide groove along the Z-axis direction of the vehicle, and a slider assembly matching the slide groove is provided on the upper side of the walking assembly, and the slider assembly can be slidably disposed in the slide groove.

[0013] In one embodiment, the mounting seat is L-shaped, and the mounting seat includes a vertically arranged fixing rod and a horizontally arranged fixing plate, the fixing rod is used to connect with the chassis, the fixing rod is provided with the sliding groove, and the fixing plate is arranged at the upper end of the fixing rod and faces the walking component.

[0014] In one embodiment, the buffer assembly comprises:

[0015] A damper, which is arranged on the upper side of the slider assembly;

[0016] The shock absorbing spring is sleeved on the outside of the damper, one end of which is connected to the slider assembly and the other end of which is abutted against the lower side of the fixing plate.

[0017] In one embodiment, the walking part comprises:

[0018] A mounting bracket connected to the mounting seat;

[0019] A plurality of driving wheels and driven wheels are arranged at intervals along the outer side of the mounting bracket;

[0020] The crawler belt is sleeved on the side surfaces of the driving wheel and the driven wheel and is drivingly connected with the driving wheel and the driven wheel.

[0021] In one embodiment, two mounting seats are included, the two mounting seats are spaced apart and both are located in the middle of the chassis, and each mounting seat is provided with the walking assembly.

[0022] In a second aspect, an embodiment of the present application further provides a vehicle, which includes the above-mentioned protective device for preventing automobile chassis from being scratched.

[0023] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0024] When using the protective device for anti-scratch of the automobile chassis, the mounting seat is used to connect with the chassis with a battery pack on the top, and the traveling assembly is connected to the mounting seat. The traveling assembly specifically includes a driving part and a traveling part. The driving part is connected to the traveling part. The lowest point of the traveling part is lower than the lowest point of the chassis and higher than the lowest point of the bottom of the wheel. The driving part is used to drive the traveling part to move when the traveling part contacts the ground, so as to generate a driving force to assist the vehicle to move in the moving direction. Since the lowest point of the walking part is lower than the lowest point of the chassis and higher than the lowest point of the bottom of the wheel, when the vehicle passes over a small bump, the walking component can serve as an anti-collision part to reduce the probability of small bumps hitting the chassis; when the vehicle passes over a large bump and lifts up the chassis of the vehicle, the walking part contacts the ground, and the driving part drives the walking part to move, assisting the vehicle to move in the moving direction to pass over the large bump. This solves the problem in the prior art that the buffer reinforcement component is located at the lower side of the battery pack, which may reduce the ground clearance of some areas of the chassis. When the vehicle is traveling on a road with complex road conditions, small bumps on the ground may be within the buffering stroke of the buffer reinforcement component. However, if the vehicle passes over a large bump, the chassis of the vehicle may be lifted up, resulting in insufficient grip of the front or rear wheels, affecting the driving of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 The present invention is a schematic structural diagram of an embodiment of a protective device for preventing automobile chassis from being scratched.

[0027] Figure 2The present invention is a schematic diagram of the front structure of a moving component and a triggering component in an embodiment of a protective device for preventing automobile chassis from being scratched.

[0028] Figure 3 The figure is a schematic diagram of the back structure of a moving component and a triggering component in an embodiment of a protective device for anti-scratch of an automobile chassis of the present invention.

[0029] Figure 4 The present invention is a schematic structural cross-sectional view of an embodiment of a protective device for preventing automobile chassis from being scratched.

[0030] Figure 5 The present invention is a schematic structural diagram of a mounting bracket in an embodiment of a protective device for anti-scratch of a vehicle chassis.

[0031] Figure 6 The present invention is a schematic structural diagram of a mounting seat and a buffer assembly in an embodiment of a protective device for anti-scratch of an automobile chassis.

[0032] In the figure: 1. chassis; 2. mounting seat; 21. fixing rod; 22. fixing plate; 23. slide groove; 3. walking assembly; 30. walking part; 31. slider assembly; 311. fixing block; 312. sliding block; 32. mounting bracket; 321. reinforcement; 322. fixed shaft; 33. driving wheel; 34. driven wheel; 35. crawler track; 36. driving part; 4. buffer assembly; 41. damper; 42. shock absorbing spring; 5. battery pack; 6. trigger assembly; 61. first contact piece; 62. second contact piece; 7. support table. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] The embodiments of the present application provide a protective device and a vehicle for anti-scratch of an automobile chassis, which can solve the problem in the prior art that the buffer reinforcement component is located on the lower side of the battery pack, which may reduce the ground clearance of some areas of the chassis. When the vehicle is traveling on a road with complex road conditions, small protrusions on the ground may be within the buffering stroke of the buffer reinforcement component, but if it passes over a large protrusion, the chassis of the vehicle may be lifted up, resulting in insufficient grip of the front or rear wheels, which affects the driving of the vehicle.

[0035] like Figure 1 , Figure 2 and Figure 3As shown, on the one hand, the present application provides a protective device for anti-scratch of automobile chassis, which comprises:

[0036] A mounting base 2, which is used to connect to the chassis 1 with a battery pack 5 on top;

[0037] The walking assembly 3 is connected to the mounting base 2, and includes a driving part 36 and a walking part 30. The driving part 36 is connected to the walking part 30. The lowest point of the walking part 30 is lower than the lowest point of the chassis 1 and higher than the lowest point of the bottom of the wheel. The driving part 36 is used to drive the walking part 30 to move when the walking part 30 contacts the ground, so as to generate a driving force to assist the vehicle to move in the moving direction.

[0038] When using the protective device for anti-scratch of the automobile chassis, the mounting base 2 is used to connect with the chassis 1 with a battery pack 5 on the top, and the traveling component 3 is connected to the mounting base 2. The traveling component 3 specifically includes a driving part 36 and a traveling part 30. The driving part 36 is connected to the traveling part 30. The lowest point of the traveling part 30 is lower than the lowest point of the chassis 1 and higher than the lowest point of the bottom of the wheel. The driving part 36 is used to drive the traveling part 30 to move when the traveling part 30 contacts the ground, so as to generate a driving force to assist the vehicle to move in the moving direction. Since the lowest point of the walking part 30 is lower than the lowest point of the chassis 1 and higher than the lowest point of the bottom of the wheel, when the vehicle passes over a small bump, the walking component 3 can serve as an anti-collision part to reduce the probability of the small bump hitting the chassis. When the vehicle passes over a large bump and lifts up the chassis of the vehicle, the walking part 30 contacts the ground, and the driving part 36 drives the walking part 30 to move, assisting the vehicle to move in the moving direction to pass over the large bump. This solves the problem in the prior art that the buffer reinforcement component is located on the lower side of the battery pack, which may reduce the ground clearance of some areas of the chassis. When the vehicle is traveling on a road with complex road conditions, small bumps on the ground may be within the buffering stroke of the buffer reinforcement component. However, if the vehicle passes over a large bump, the chassis of the vehicle may be lifted up, resulting in insufficient grip of the front or rear wheels, which affects the driving of the vehicle.

[0039] In this example, a chassis bracket is provided on the chassis 1, a battery pack 5 is provided on the chassis bracket, and the mounting seat 2 is connected to the chassis bracket.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, in some optional embodiments, the traveling component 3 can move relative to the mounting seat 2 along the Z-axis direction of the vehicle, and a buffer component 4 is provided between the mounting seat 2 and the traveling component 3 , and the buffer component 4 is located in the moving direction of the traveling component 3 .

[0041] In this embodiment, the walking component 3 can move along the Z-axis direction of the vehicle relative to the mounting base 2, and a buffer component 4 is provided between the mounting base 2 and the walking component 3. The buffer component 4 is located in the moving direction of the walking component 3. When the walking part 30 contacts the ground, it moves upward due to the contact force of the ground. The buffer component 4 provides a force to hinder the movement of the walking component 3 to produce a buffering effect. When the vehicle passes over a small bump, the damage to the chassis is further reduced through the buffering effect.

[0042] In this example, the vehicle Z-axis direction refers to the vertical direction when the vehicle is stationary on a plane, or the direction perpendicular to the vehicle chassis.

[0043] In this example, the driving unit 36 ​​is a driving motor, which is disposed on the traveling unit 30 . The traveling unit 30 is connected to the mounting seat 2 and can move relative to the mounting seat 2 along the Z-axis direction of the vehicle.

[0044] In another embodiment, the driving part 36 has the nature of a mounting frame, the connecting end of the driving part 36 is connected to the mounting seat 2, and can move relative to the mounting seat 2 along the Z-axis direction of the vehicle, and the walking part 30 is arranged at the driving end of the driving part 36. Other mounting components adjust the installation position according to the design form of the walking assembly 3 and are connected to the walking part 30 or the driving part 36.

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, in some optional embodiments, a trigger component 6 is further included, and the travel component 3 is used to be electrically connected to the battery pack 5 through the trigger component 6. When the travel component 3 moves to the upper limit position, the trigger component 6 connects the drive part 36 and the battery pack 5.

[0046] In the present embodiment, the protective device for the automobile chassis scratch protection also includes a trigger component 6, and the walking component 3 is electrically connected to the battery pack 5 through the trigger component 6. When the walking component 3 moves to the upper limit position, the trigger component 6 connects the drive unit 36 ​​and the battery pack 5, and the walking component 3 starts. When the vehicle passes over a large protrusion and lifts up the chassis of the vehicle, the walking component 3 contacts the ground and moves upward to the upper limit position due to the contact force of the ground. The walking component 3 starts to assist the movement of the vehicle. When the vehicle passes over a small protrusion, the walking part 30 contacts the ground and moves upward due to the contact force of the ground. The damage to the chassis is reduced through the buffering effect, and it can automatically start or stop according to the size of the protrusion passed. During normal driving, the power loss of the battery pack 5 will not be increased, ensuring normal driving endurance.

[0047] In this example, the upper limit position refers to a position where the trigger component 6 connects the travel component 3 and the battery pack 5 without causing damage to the trigger component 6 .

[0048] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, in some optional embodiments, the trigger assembly 6 includes a first contact member 61 and a second contact member 62, the first contact member 61 is arranged on the walking assembly 3, and the second contact member 62 is arranged on the mounting base 2, and is used to be electrically connected to the battery pack 5. When the walking assembly 3 moves to the upper limit position, the first contact member 61 and the second contact member 62 are electrically connected.

[0049] In this embodiment, the structure of the trigger component 6 is specifically described. The trigger component 6 includes a first contact member 61 and a second contact member 62, wherein the first contact member 61 is arranged on the walking component 3, and the second contact member 62 is arranged on the mounting base 2, and is used to be electrically connected to the battery pack 5. When the walking component 3 moves to the upper limit position, the first contact member 61 and the second contact member 62 are in contact and electrically connected, and the walking component 3 is started. The structure is simple and easy to install.

[0050] In this example, the first contact member 61 is an electric sheet, which is an elastically deformable metal sheet, and the second contact member 62 is an electrode, which is made of a conductive metal material.

[0051] like Figure 2 As shown, in some optional embodiments, the mounting seat 2 is provided with a slide groove 23 along the Z-axis direction of the vehicle, and a slider assembly 31 matching the slide groove 23 is provided on the upper side of the walking assembly 3, and the slider assembly 31 can be slidably arranged in the slide groove 23.

[0052] In this embodiment, a slide groove 23 is provided on the mounting seat 2 along the Z-axis direction of the vehicle, and a slider assembly 31 matching the slide groove 23 is provided on the upper side of the walking component 3. The slider assembly 31 can be slidably arranged in the slide groove 23, and the walking component 3 is moved relative to the mounting seat 2 by sliding, and the moving process is smoother and more stable.

[0053] In this example, the slide groove 23 is a T-shaped slide groove to prevent the slider assembly 31 from falling out.

[0054] like Figure 3 and Figure 5 As shown, in this example, the slider assembly 31 includes a fixed block 311 and a sliding block 312, wherein the fixed block 311 is arranged on the upper side of the walking assembly 3, and the sliding block 312 is arranged on a side of the fixed block 311 close to the mounting seat 2, and is used to be slidably arranged in the slide groove 23.

[0055] like Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, in some optional embodiments, the mounting base 2 is L-shaped, and the mounting base 2 includes a vertically arranged fixing rod 21 and a horizontally arranged fixing plate 22, the fixing rod 21 is used to connect with the chassis 1, and a sliding groove 23 is provided on the fixing rod 21, and the fixing plate 22 is arranged at the upper end of the fixing rod 21 and faces the walking component 3.

[0056] In this embodiment, the structure of the mounting base 2 is specifically described. The mounting base 2 is L-shaped. The mounting base 2 includes a vertically arranged fixing rod 21 and a horizontally arranged fixing plate 22. The fixing rod 21 is used to connect with the chassis 1. A sliding groove 23 is provided on the fixing rod 21. The fixing plate 22 is arranged at the upper end of the fixing rod 21 and faces the walking component 3, so as to facilitate the arrangement of the buffer component 4 between the mounting base 2 and the walking component 3.

[0057] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, in some optional embodiments, the buffer component 4 includes:

[0058] A damper 41, which is arranged on the upper side of the slider assembly 31;

[0059] The shock absorbing spring 42 is sleeved on the outside of the damper 41 , and one end of the spring is connected to the slider assembly 31 , and the other end of the spring is abutted against the lower side of the fixing plate 22 .

[0060] In this embodiment, the structure of the buffer assembly 4 is specifically described. The buffer assembly 4 includes a damper 41 and a shock-absorbing spring 42, wherein the damper 41 is arranged on the upper side of the slider assembly 31, and the shock-absorbing spring 42 is sleeved on the outside of the damper 41, and one end is connected to the slider assembly 31, and the other end is abutted against the lower side of the fixed plate 22. Through the dual buffering effect of the damper 41 and the shock-absorbing spring 42, the buffering capacity is improved and the damage to the chassis is further reduced.

[0061] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some optional embodiments, the walking part 30 includes:

[0062] A mounting bracket 32 ​​connected to the mounting base 2;

[0063] A plurality of driving wheels 33 and driven wheels 34 are arranged at intervals along the outer side of the mounting bracket 32;

[0064] The crawler belt 35 is sleeved on the side surfaces of the driving wheel 33 and the driven wheel 34 and is transmission-connected with the driving wheel 33 and the driven wheel 34 .

[0065] In this embodiment, the structure of the walking part 30 is specifically described. The walking part 30 includes a mounting bracket 32, a track 35 and a plurality of driving wheels 33 and driven wheels 34, wherein the mounting bracket 32 ​​is connected to the mounting seat 2, and the plurality of driving wheels 33 and driven wheels 34 are arranged at intervals along the outer side of the mounting bracket 32. The track 35 is sleeved on the side surfaces of the driving wheel 33 and the driven wheel 34, and is transmitted through the rotation of the driving wheel 33 and the driven wheel 34. The structure is simple, and the track 35 is superior to the wheel in terms of passability, traction, stability, durability, load capacity, adaptability, and environmental friendliness, and can be better applied to vehicle-assisted obstacle crossing.

[0066] like Figure 2 , Figure 3 and Figure 5 As shown, in this example, driving wheels 33 are provided at both ends of the outer side of the mounting bracket 32, and a plurality of driven wheels 34 are arranged between the driving wheels 33 at both ends of the outer side of the mounting bracket 32. Through holes corresponding to the driving wheels 33 and the driven wheels 34 are provided on the mounting bracket 32. The driving part 36 is a driving motor, which corresponds to the driving wheels 33 one by one. The output end of the driving motor passes through the through hole and is movably connected thereto. The end of the output shaft end of the driving motor is fixedly connected to the driving wheel 33. A fixed shaft 322 is provided in the remaining through holes, and one end of the fixed shaft 322 is movably sleeved with the driven wheel 34 through a bearing. The electric sheet and the electrode are electrically connected to the positive and negative poles of the driving motor respectively, and a plurality of driving motors are connected in series.

[0067] like Figure 3 As shown, in this example, a plurality of reinforcement members 321 are provided on the side of the mounting bracket 32 ​​close to the chassis 1 , and the plurality of reinforcement members 321 are scatteredly distributed about the central axis of the fixing block 311 , and the ends of the plurality of reinforcement members 321 close to each other are fixedly connected to the fixing block 311 .

[0068] like Figure 3 and Figure 5 As shown, in this example, a fixing block 311 is provided on the upper side of the mounting bracket 32, a supporting platform 7 is provided on the upper side of the fixing block 311, the supporting platform 7 is a rectangular plate, a first contact piece 61 is provided at one end of the supporting platform 7, and a buffer assembly 4 is provided on the upper side, and the first contact piece 61 and the buffer assembly 4 can be conveniently arranged through the supporting platform 7.

[0069] like Figure 1 , Figure 2 and Figure 3 As shown, in some optional embodiments, two mounting seats 2 are included, the two mounting seats 2 are arranged at an interval and are both located in the middle of the chassis 1, and each mounting seat 2 is provided with a walking component 3.

[0070] In this embodiment, the protective device for preventing the automobile chassis from being scratched includes two mounting seats 2, which are arranged at intervals and are both located in the middle of the chassis 1. Each mounting seat 2 is provided with a walking component 3. The two groups of walking components 3 can be better arranged on the chassis 1, and the movement process is smoother.

[0071] In this example, two mounting seats 2 are respectively arranged on both sides of the chassis bracket. When the chassis bracket is divided into two bracket units arranged at intervals, one mounting seat 2 can be provided and located between the two bracket units arranged at intervals.

[0072] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, on the other hand, the present application also provides a vehicle, which includes the above-mentioned protective device for preventing automobile chassis from being scratched.

[0073] When using the protective device for anti-scratch of the automobile chassis, the mounting base 2 is used to connect with the chassis 1 with a battery pack 5 on the top, and the traveling component 3 is connected to the mounting base 2. The traveling component 3 specifically includes a driving part 36 and a traveling part 30. The driving part 36 is connected to the traveling part 30. The lowest point of the traveling part 30 is lower than the lowest point of the chassis 1 and higher than the lowest point of the bottom of the wheel. The driving part 36 is used to drive the traveling part 30 to move when the traveling part 30 contacts the ground, so as to generate a driving force to assist the vehicle to move in the moving direction. Since the lowest point of the walking part 30 is lower than the lowest point of the chassis 1 and higher than the lowest point of the bottom of the wheel, when the vehicle passes over a small bump, the walking component 3 can serve as an anti-collision part to reduce the probability of the small bump hitting the chassis. When the vehicle passes over a large bump and lifts up the chassis of the vehicle, the walking part 30 contacts the ground, and the driving part 36 drives the walking part 30 to move, assisting the vehicle to move in the moving direction to pass over the large bump. This solves the problem in the prior art that the buffer reinforcement component is located on the lower side of the battery pack, which may reduce the ground clearance of some areas of the chassis. When the vehicle is traveling on a road with complex road conditions, small bumps on the ground may be within the buffering stroke of the buffer reinforcement component. However, if the vehicle passes over a large bump, the chassis of the vehicle may be lifted up, resulting in insufficient grip of the front or rear wheels, which affects the driving of the vehicle.

[0074] In this embodiment, the walking component 3 can move along the Z-axis direction of the vehicle relative to the mounting base 2, and a buffer component 4 is provided between the mounting base 2 and the walking component 3. The buffer component 4 is located in the moving direction of the walking component 3. When the walking part 30 contacts the ground, it moves upward due to the contact force of the ground. The buffer component 4 provides a force to hinder the movement of the walking component 3 to produce a buffering effect. When the vehicle passes over a small bump, the damage to the chassis is further reduced through the buffering effect.

[0075] In the present embodiment, the protective device for the automobile chassis scratch protection also includes a trigger component 6, and the walking component 3 is electrically connected to the battery pack 5 through the trigger component 6. When the walking component 3 moves to the upper limit position, the trigger component 6 connects the drive unit 36 ​​and the battery pack 5, and the walking component 3 starts. When the vehicle passes over a large protrusion and lifts up the chassis of the vehicle, the walking component 3 contacts the ground and moves upward to the upper limit position due to the contact force of the ground. The walking component 3 starts to assist the movement of the vehicle. When the vehicle passes over a small protrusion, the walking part 30 contacts the ground and moves upward due to the contact force of the ground. The damage to the chassis is reduced through the buffering effect, and it can automatically start or stop according to the size of the protrusion passed. During normal driving, the power loss of the battery pack 5 will not be increased, ensuring normal driving endurance.

[0076] In this embodiment, the structure of the trigger component 6 is specifically described. The trigger component 6 includes a first contact member 61 and a second contact member 62, wherein the first contact member 61 is arranged on the walking component 3, and the second contact member 62 is arranged on the mounting base 2, and is used to be electrically connected to the battery pack 5. When the walking component 3 moves to the upper limit position, the first contact member 61 and the second contact member 62 are in contact and electrically connected, and the walking component 3 is started. The structure is simple and easy to install.

[0077] In this embodiment, a slide groove 23 is provided on the mounting seat 2 along the Z-axis direction of the vehicle, and a slider assembly 31 matching the slide groove 23 is provided on the upper side of the walking component 3. The slider assembly 31 can be slidably arranged in the slide groove 23, and the walking component 3 is moved relative to the mounting seat 2 by sliding, and the moving process is smoother and more stable.

[0078] In this embodiment, the structure of the mounting base 2 is specifically described. The mounting base 2 is L-shaped. The mounting base 2 includes a vertically arranged fixing rod 21 and a horizontally arranged fixing plate 22. The fixing rod 21 is used to connect with the chassis 1. A sliding groove 23 is provided on the fixing rod 21. The fixing plate 22 is arranged at the upper end of the fixing rod 21 and faces the walking component 3, so as to facilitate the arrangement of the buffer component 4 between the mounting base 2 and the walking component 3.

[0079] In this embodiment, the structure of the buffer assembly 4 is specifically described. The buffer assembly 4 includes a damper 41 and a shock-absorbing spring 42, wherein the damper 41 is arranged on the upper side of the slider assembly 31, and the shock-absorbing spring 42 is sleeved on the outside of the damper 41, and one end is connected to the slider assembly 31, and the other end is abutted against the lower side of the fixed plate 22. Through the dual buffering effect of the damper 41 and the shock-absorbing spring 42, the buffering capacity is improved and the damage to the chassis is further reduced.

[0080] In this embodiment, the structure of the walking part 30 is specifically described. The walking part 30 includes a mounting bracket 32, a track 35 and a plurality of driving wheels 33 and driven wheels 34, wherein the mounting bracket 32 ​​is connected to the mounting seat 2, and the plurality of driving wheels 33 and driven wheels 34 are arranged at intervals along the outer side of the mounting bracket 32. The track 35 is sleeved on the side surfaces of the driving wheel 33 and the driven wheel 34, and is transmitted through the rotation of the driving wheel 33 and the driven wheel 34. The structure is simple, and the track 35 is superior to the wheel in terms of passability, traction, stability, durability, load capacity, adaptability, and environmental friendliness, and can be better applied to vehicle-assisted obstacle crossing.

[0081] In this embodiment, the protective device for preventing the automobile chassis from being scratched includes two mounting seats 2, which are arranged at intervals and are both located in the middle of the chassis 1. Each mounting seat 2 is provided with a walking component 3. The two groups of walking components 3 can be better arranged on the chassis 1, and the movement process is smoother.

[0082] In the description of the present application, it should be noted that the terms "upper", "lower", etc. 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 application 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 a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0083] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0084] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A protective device for anti-scratch of automobile chassis, characterized in that: include: A mounting seat (2) for connecting to a chassis (1) on which a battery pack (5) is disposed; A walking assembly (3) is connected to the mounting seat (2), and comprises a driving part (36) and a walking part (30). The driving part (36) is connected to the walking part (30). The lowest point of the walking part (30) is lower than the lowest point of the chassis (1) and higher than the lowest point of the bottom of the wheel. The driving part (36) is used to drive the walking part (30) to move when the walking part (30) contacts the ground, so as to generate a driving force to assist the vehicle to move in a moving direction.

2. A protective device for automobile chassis scratch protection as claimed in claim 1, characterized in that: The travel component (3) can move relative to the mounting seat (2) along the Z-axis direction of the vehicle, and a buffer component (4) is provided between the mounting seat (2) and the travel component (3), and the buffer component (4) is located in the moving direction of the travel component (3).

3. A protective device for automobile chassis scratch protection as claimed in claim 2, characterized in that: It also includes a trigger component (6), and the travel component (3) is used to be electrically connected to the battery pack (5) through the trigger component (6). When the travel component (3) moves to the upper limit position, the trigger component (6) connects the drive unit (36) and the battery pack (5).

4. A protective device for automobile chassis scratch protection as claimed in claim 3, characterized in that: The trigger assembly (6) comprises a first contact member (61) and a second contact member (62); the first contact member (61) is arranged on the travel assembly (3); the second contact member (62) is arranged on the mounting seat (2) and is used to be electrically connected to the battery pack (5); when the travel assembly (3) moves to an upper limit position, the first contact member (61) and the second contact member (62) are electrically connected.

5. A protective device for automobile chassis scratch protection as claimed in claim 2, characterized in that: The mounting seat (2) is provided with a slide groove (23) along the Z-axis direction of the vehicle, and the upper side of the walking component (3) is provided with a slider component (31) matching the slide groove (23), and the slider component (31) is slidably arranged in the slide groove (23).

6. A protective device for automobile chassis against scratches as claimed in claim 5, characterized in that: The mounting seat (2) is L-shaped, and comprises a vertically arranged fixing rod (21) and a horizontally arranged fixing plate (22), wherein the fixing rod (21) is used to be connected to the chassis (1), the fixing rod (21) is provided with the sliding groove (23), and the fixing plate (22) is arranged at the upper end of the fixing rod (21) and faces the walking assembly (3).

7. A protective device for automobile chassis scratch protection as claimed in claim 6, characterized in that: The buffer component (4) comprises: A damper (41) disposed on the upper side of the slider assembly (31); A shock absorbing spring (42) is sleeved on the outside of the damper (41), one end of which is connected to the slider assembly (31) and the other end of which is abutted against the lower side of the fixing plate (22).

8. A protective device for automobile chassis against scratches as claimed in claim 1, characterized in that: The walking part (30) comprises: A mounting bracket (32) connected to the mounting seat (2); A plurality of driving wheels (33) and driven wheels (34) are arranged at intervals along the outer side of the mounting bracket (32); The crawler belt (35) is sleeved on the side surfaces of the driving wheel (33) and the driven wheel (34), and is drivingly connected with the driving wheel (33) and the driven wheel (34).

9. A protective device for automobile chassis against scratches according to any one of claims 1 to 8, characterized in that: It comprises two mounting seats (2), the two mounting seats (2) are arranged at an interval and are both located in the middle of the chassis (1), and each mounting seat (2) is provided with the walking assembly (3).

10. A vehicle, characterized in that: The invention comprises a protective device for preventing automobile chassis from being scratched as described in any one of claims 1 to 9.

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