A protection device for preventing scratching of an automobile chassis and a vehicle

Abstract

The application relates to a protection device for preventing scratching of an automobile chassis and a vehicle, and relates to the technical field of automobile chassis, and comprises a mounting seat used for being connected with a chassis provided with a battery pack above; a walking assembly connected with the mounting seat, comprising a driving part and a walking part, the driving part being connected with the walking part, the lowest point of the walking part being lower than the lowest point of the chassis and higher than the lowest point of the bottom of a wheel, and the driving part being used for driving the walking part to move when the walking part contacts the ground, so as to generate a driving force for assisting the vehicle to move in a 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 through a small convex, the walking assembly can be used as a collision-preventing part to reduce the probability that the small convex collides with the chassis, and when the vehicle passes through a large convex and lifts up the chassis of the vehicle, the walking part contacts the ground, the driving part drives the walking part to move, and the vehicle is assisted to move in the moving direction to pass through the large convex.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile chassis, in particular to a protection device for preventing scratching of an automobile chassis and a vehicle. BACKGROUND

[0002] A new energy automobile chassis mainly comprises a frame and a battery pack, CTP and CTC technologies are adopted to integrate the battery in the battery pack, and the battery pack is connected with a vehicle body frame, and the integration technology has become the mainstream of the current new energy automobile chassis manufacturing. Since the battery pack of an electric vehicle is usually installed on the chassis, when the vehicle chassis is scratched, the battery pack is prone to be damaged, the vehicle has a safety risk, and the high maintenance cost of the damaged battery pack

[0003] In the prior art, for example, a new energy automobile chassis high-strength lightweight vehicle body structure disclosed in patent No. CN221605906U comprises a frame, a cross beam is fixedly installed on the inner side of the frame, a battery pack is fixedly installed between the frame and the cross beam, a buffer strengthening assembly is arranged between the battery pack and the frame, the buffer strengthening assembly comprises a fixed slide rod, a movable guard plate, a buffer spring and a fixed bolt, and the fixed slide rod is fixedly connected to the bottom of both ends of the battery pack. In the technical scheme, when the vehicle chassis is collided by external objects, the movable guard plate is hit, and then the movable guard plate compresses the buffer spring, so that the buffer spring is contracted to buffer, thereby ensuring the same strength of the battery pack and improving the protection capability of the chassis battery pack to prevent the battery in the battery pack from catching fire.

[0004] However, the buffer strengthening assembly is located on the lower side of the battery pack, which may reduce the ground clearance of the chassis in some areas. When the vehicle runs on a road with complex road conditions, small protrusions on the ground may be in the buffer stroke of the buffer strengthening assembly, but if a large protrusion is passed, the chassis of the vehicle may be lifted, causing insufficient grip of the front wheel or the rear wheel, and there is a problem of affecting the vehicle driving. SUMMARY

[0005] The application provides a protection device for preventing scratching of an automobile chassis and a vehicle, which can solve the problem that in the prior art, the buffer strengthening assembly is located on the lower side of the battery pack, which may reduce the ground clearance of the chassis in some areas. When the vehicle runs on a road with complex road conditions, small protrusions on the ground may be in the buffer stroke of the buffer strengthening assembly, but if a large protrusion is passed, the chassis of the vehicle may be lifted, causing insufficient grip of the front wheel or the rear wheel, and there is a problem of affecting the vehicle driving.

[0006] In a first aspect, the embodiments of the application provide a protection device for preventing scratching of an automobile chassis, which comprises:

[0007] A mounting base for connecting with a chassis provided with a battery pack above;

[0008] A walking assembly connected with the mounting base, comprising a driving part and a walking part, the driving part connected with the walking part, the lowest point of the walking part lower than the lowest point of the chassis and higher than the lowest point of the bottom of the wheel, the driving part for driving the walking part to move when the walking part contacts the ground to generate driving force to assist the vehicle to move in the moving direction.

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

[0010] In an embodiment, a trigger assembly is further included, and the walking assembly is electrically connected with the battery pack through the trigger assembly, and the trigger assembly turns on the driving part and the battery pack when the walking assembly moves to an upper limit position.

[0011] In an embodiment, the trigger assembly comprises a first contact and a second contact, the first contact is provided on the walking assembly, the second contact is provided on the mounting base and is electrically connected with the battery pack, and the first contact and the second contact are electrically connected when the walking assembly moves to an upper limit position.

[0012] In an embodiment, a sliding groove along the Z-axis direction of the vehicle is provided on the mounting base, and a sliding block assembly matching the sliding groove is provided on the upper side of the walking assembly, and the sliding block assembly is slidably arranged in the sliding groove.

[0013] In an embodiment, the mounting base is L-shaped, comprising a vertical fixed rod and a horizontal fixed plate, the fixed rod is used for connecting with the chassis, the sliding groove is provided on the fixed rod, and the fixed plate is arranged on the upper end of the fixed rod and faces the walking assembly.

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

[0015] A damper provided on the upper side of the sliding block assembly;

[0016] A shock absorbing spring sleeved outside the damper and connected with the sliding block assembly at one end and abutting against the lower side of the fixed plate at the other end.

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

[0018] A mounting bracket connected with the mounting base;

[0019] a plurality of driving wheels and driven wheels are arranged at intervals outside the mounting bracket;

[0020] a track is sleeved on the side surface of the driving wheel and the driven wheel and is in transmission connection with the driving wheel and the driven wheel.

[0021] In an embodiment, two mounting seats are arranged at intervals and are located at the middle part of the chassis, and each mounting seat is provided with the walking assembly.

[0022] In a second aspect, the embodiment of the present application further provides a vehicle comprising the protective device for preventing the chassis of the automobile from being scratched.

[0023] The technical scheme provided by the embodiment of the present application has the following beneficial effects:

[0024] In use of the protective device for preventing the chassis of the automobile from being scratched, the mounting seat is used for connecting with the chassis provided with the battery pack above, the walking assembly is connected with the mounting seat, the walking assembly specifically 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 contacts the ground, so as to generate the driving force for assisting 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 through the small protrusion, the walking assembly can be used as the anti-collision part to reduce the probability of the small protrusion impacting the chassis, and when the vehicle passes through the large protrusion and lifts the chassis of the vehicle, the walking part contacts the ground, the driving part drives the walking part to move, and the vehicle is assisted to move in the moving direction, so as to pass through the large protrusion. The problem that the buffer reinforcing assembly in the prior art is located at the lower side of the battery pack and may reduce the ground clearance of the part of the chassis, that the small protrusion on the ground may be in the buffer stroke of the buffer reinforcing assembly when the vehicle runs on the road with complex road conditions, and that the chassis of the vehicle may be lifted if the vehicle passes through the large protrusion, so that the grip of the front wheel or the rear wheel is insufficient and the vehicle running is affected is solved. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 FIG. 1 is a structural schematic view of an embodiment of the protective device for preventing the chassis of the automobile from being scratched.

[0027] Figure 2Front view structure diagram of the motion assembly and the trigger assembly in an embodiment of the protection device for preventing scratching of the automobile chassis.

[0028] Figure 3 Back view structure diagram of the motion assembly and the trigger assembly in an embodiment of the protection device for preventing scratching of the automobile chassis.

[0029] Figure 4 Structure sectional view diagram of an embodiment of the protection device for preventing scratching of the automobile chassis.

[0030] Figure 5 Structure diagram of the mounting bracket in an embodiment of the protection device for preventing scratching of the automobile chassis.

[0031] Figure 6 Structure diagram of the mounting seat and the buffer assembly in an embodiment of the protection device for preventing scratching of the automobile chassis.

[0032] In the figure: 1, chassis; 2, mounting seat; 21, fixed rod; 22, fixed plate; 23, sliding groove; 3, walking assembly; 30, walking part; 31, sliding block assembly; 311, fixed block; 312, sliding block; 32, mounting bracket; 321, reinforcing piece; 322, fixed shaft; 33, driving wheel; 34, driven wheel; 35, track; 36, driving part; 4, buffer assembly; 41, damper; 42, shock 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 persons skilled in the art to better understand the scheme of the present application, the technical scheme 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 some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] The embodiments of the present application provide a protection device for preventing scratching of an automobile chassis and a vehicle, which can solve the problem in the prior art that the buffer reinforcing assembly is located on the lower side of the battery pack, which may reduce the ground clearance of the chassis in some areas, when the vehicle travels on a road with complex road conditions, small protrusions on the ground may be in the buffer stroke of the buffer reinforcing assembly, but if large protrusions are passed, the chassis of the vehicle may be lifted up, causing insufficient grip of the front wheel or the rear wheel, and there is a problem of affecting the travel of the vehicle.

[0035] As Figure 1 , Figure 2 and Figure 3As shown, in one aspect, the application provides a protection device for preventing the chassis of a vehicle from being scratched, which comprises:

[0036] a mounting seat 2 for connecting with the chassis 1 provided with the battery pack 5 above;

[0037] a walking assembly 3 connected with the mounting seat 2, comprising a driving part 36 and a walking part 30, the driving part 36 being connected with the walking part 30, the lowest point of the walking part 30 being 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 being used to drive the walking part 30 to move when the walking part 30 contacts the ground, so as to generate driving force for assisting the vehicle to move in the moving direction.

[0038] In use of the protection device for preventing the chassis of a vehicle from being scratched, the mounting seat 2 is used to connect with the chassis 1 provided with the battery pack 5 above, the walking assembly 3 is connected with the mounting seat 2, the walking assembly 3 specifically comprises a driving part 36 and a walking part 30, the driving part 36 being connected with the walking part 30, the lowest point of the walking part 30 being 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 being used to drive the walking part 30 to move when the walking part 30 contacts the ground, so as to generate driving force for assisting 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 through a small protrusion, the walking assembly 3 can serve as a bumper to reduce the probability of the small protrusion impacting the chassis, and when the vehicle passes through a large protrusion and lifts up the chassis of the vehicle, the walking part 30 contacts the ground, the driving part 36 drives the walking part 30 to move, and the vehicle is assisted to move in the moving direction to pass through the large protrusion, thereby solving the problem in the prior art that the buffer reinforcing assembly is located at the lower side of the battery pack, which may reduce the ground clearance of the chassis in some areas, and when the vehicle runs on a road with complex road conditions, a small protrusion on the ground may be in the buffer stroke of the buffer reinforcing assembly, but if a large protrusion is passed through, the chassis of the vehicle may be lifted up, which causes insufficient grip of the front wheel or the rear wheel, and affects the running of the vehicle.

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

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

[0041] In this embodiment, the walking assembly 3 can move along the vehicle Z-axis direction relative to the mounting base 2, and a buffer assembly 4 is arranged between the mounting base 2 and the walking assembly 3. When the walking part 30 contacts the ground, it is moved upward by the contact force of the ground. The buffer assembly 4 provides a force to hinder the movement of the walking assembly 3, so as to generate a buffering effect. When the vehicle passes through a small protrusion, the damage to the chassis is further reduced by the buffering effect.

[0042] In this embodiment, 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 embodiment, the driving part 36 is a driving motor arranged on the walking part 30, and the walking part 30 is connected to the mounting base 2 and can move along the vehicle Z-axis direction relative to the mounting base 2.

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

[0045] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 , in some optional embodiments, a triggering assembly 6 is further included, and the walking assembly 3 is electrically connected to the battery pack 5 through the triggering assembly 6. When the walking assembly 3 moves to the upper limit position, the triggering assembly 6 connects the driving part 36 to the battery pack 5.

[0046] In this embodiment, the protection device for preventing scratching of the chassis of the automobile further includes a triggering assembly 6, and the walking assembly 3 is electrically connected to the battery pack 5 through the triggering assembly 6. When the walking assembly 3 moves to the upper limit position, the triggering assembly 6 connects the driving part 36 to the battery pack 5, and the walking assembly 3 is started. When the vehicle passes through a large protrusion and the chassis of the vehicle is lifted up, the walking assembly 3 contacts the ground and is moved upward by the contact force of the ground to the upper limit position. The walking assembly 3 is started to assist the movement of the vehicle. When the vehicle passes through a small protrusion, the walking part 30 contacts the ground and is moved upward by the contact force of the ground. The damage to the chassis is reduced by the buffering effect. It can be automatically started or stationary according to the size of the protrusion passed through. In the normal driving process, the power loss of the battery pack 5 is not increased, and the normal driving endurance is ensured.

[0047] In this embodiment, the upper limit position refers to a position where the triggering assembly 6 connects the walking assembly 3 to the battery pack 5 and does not cause damage to the triggering assembly 6.

[0048] AsFigure 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 contact and are 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 electrical 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 movement 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 the 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. 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.

[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 assembly 4 includes:

[0058] a damper 41 disposed on the upper side of the slider assembly 31;

[0059] The shock absorbing spring 42 is sleeved on the outside of the damper 41 , with one end connected to the slider assembly 31 and the other end abutting 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, with one end connected to the slider assembly 31 and the other end abutting 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 in transmission connection with the driving wheel 33 and the driven wheel 34 .

[0065] In the embodiment, the structure of the walking part 30 is specifically illustrated, the walking part 30 comprises 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 with the mounting seat 2, 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 surface of the driving wheel 33 and the driven wheel 34, and is driven by the rotation of the driving wheel 33 and the driven wheel 34, which is simple in structure and superior to the wheel in passability, traction, stability, durability, load capacity, adaptability and environmental friendliness, and can be better applied to vehicle auxiliary obstacle crossing.

[0066] As shown in Figure 2 , Figure 3 and Figure 5 , in the example, the two ends of the outer side of the mounting bracket 32 are provided with driving wheels 33, and a plurality of driven wheels 34 are arranged at intervals between the driving wheels 33 at the two ends of the outer side of the mounting bracket 32. The mounting bracket 32 is provided with through holes corresponding to the driving wheels 33 and the driven wheels 34 one by one, the driving part 36 is a driving motor, the driving motor corresponds to the driving wheel 33 one by one, the output end of the driving motor passes through the through hole and is movably connected therewith, the end of the output shaft of the driving motor is fixedly connected with the driving wheel 33, and the remaining through holes are provided with fixed shafts 322, 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 with the positive and negative electrodes of the driving motor respectively, and the plurality of driving motors are connected in series.

[0067] As shown in Figure 3 , in the example, the side of the mounting bracket 32 close to the chassis 1 is provided with a plurality of reinforcing members 321, the plurality of reinforcing members 321 are distributed in a scattered manner with the central axis of the fixed block 311, and the ends close to each other of the plurality of reinforcing members 321 are fixedly connected with the fixed block 311.

[0068] As shown in Figure 3 and Figure 5 , in the example, the upper side of the mounting bracket 32 is provided with a fixed block 311, the upper side of the fixed block 311 is provided with a support table 7, the support table 7 is a rectangular plate, one end of the support table 7 is provided with a first contact piece 61, and the upper side is provided with a buffer assembly 4, so that the first contact piece 61 and the buffer assembly 4 can be conveniently arranged through the support table 7.

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

[0070] In the embodiment, the protection device for preventing the chassis of the automobile from being scratched includes two mounting seats 2, which are spaced apart and located at the middle of the chassis 1. Each mounting seat 2 is provided with a walking assembly 3. The two walking assemblies 3 can be better arranged on the chassis 1, and the movement is more smooth.

[0071] In the embodiment, the two mounting seats 2 are arranged on the two sides of the chassis bracket. When the chassis bracket is divided into two bracket units that are spaced apart, one mounting seat 2 can be arranged between the two bracket units.

[0072] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , in another aspect, the application also provides a vehicle comprising the above-mentioned protection device for preventing the chassis of the automobile from being scratched.

[0073] In use, the mounting seat 2 is used to be connected with the chassis 1 provided with the battery pack 5 above, the walking assembly 3 is connected with the mounting seat 2, the walking assembly 3 specifically includes a driving part 36 and a walking part 30, the driving part 36 is connected with 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, and 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 for assisting 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 through a small protrusion, the walking assembly 3 can be used as a bumper to reduce the probability of the small protrusion impacting the chassis, and when the vehicle passes through a large protrusion and lifts the chassis of the vehicle, the walking part 30 contacts the ground, the driving part 36 drives the walking part 30 to move, and the vehicle is assisted to move in the moving direction to pass through the large protrusion. The problem that the buffer reinforcing assembly in the prior art is located on the lower side of the battery pack, which may reduce the ground clearance of the chassis in some areas, and when the vehicle runs on a road with complex road conditions, the small protrusion on the ground may be in the buffer stroke of the buffer reinforcing assembly, but if it passes through a large protrusion, the chassis of the vehicle may be lifted, which causes insufficient grip of the front wheel or the rear wheel, and affects the running of the vehicle.

[0074] In the embodiment, the walking assembly 3 is movable relative to the mounting seat 2 along the Z-axis direction of the vehicle, and a buffer assembly 4 is arranged between the mounting seat 2 and the walking assembly 3. The buffer assembly 4 is located in the moving direction of the walking assembly 3. When the walking part 30 contacts the ground and is subjected to the contact force of the ground to move upward, the buffer assembly 4 provides a force that hinders the movement of the walking assembly 3, so as to generate a buffer effect. When the vehicle passes through a small protrusion, the buffer effect further reduces the damage to the chassis.

[0075] In the embodiment, the protection device for preventing the automobile chassis from being scratched further comprises a triggering assembly 6, and the walking assembly 3 is electrically connected with the battery pack 5 through the triggering assembly 6. When the walking assembly 3 moves to the upper limit position, the triggering assembly 6 connects the driving part 36 with the battery pack 5, and the walking assembly 3 is started. When the vehicle passes through a large protrusion and the chassis of the vehicle is lifted up, the walking assembly 3 contacts the ground and is moved upward to the upper limit position by the contact force of the ground. The walking assembly 3 is started to assist the vehicle to move. When the vehicle passes through a small protrusion, the walking part 30 contacts the ground and is moved upward by the contact force of the ground. The damage to the chassis is reduced by the buffering effect. The device can be automatically started or stopped according to the size of the protrusion passed. In the normal driving process, the power consumption of the battery pack 5 is not increased, and the normal driving endurance is ensured.

[0076] In the embodiment, the structure of the triggering assembly 6 is specifically illustrated. The triggering assembly 6 comprises a first contact piece 61 and a second contact piece 62. The first contact piece 61 is arranged on the walking assembly 3, and the second contact piece 62 is arranged on the mounting seat 2 and is used for being electrically connected with the battery pack 5. When the walking assembly 3 moves to the upper limit position, the first contact piece 61 and the second contact piece 62 are contacted and electrically connected, and the walking assembly 3 is started. The structure is simple and convenient to install.

[0077] In the embodiment, the sliding groove 23 in the direction of the vehicle Z axis is arranged on the mounting seat 2. The upper side of the walking assembly 3 is provided with the sliding block assembly 31 matched with the sliding groove 23. The sliding block assembly 31 is slidably arranged in the sliding groove 23. The walking assembly 3 is moved relative to the mounting seat 2 in a sliding manner. The movement is more stable and smooth.

[0078] In the embodiment, the structure of the mounting seat 2 is specifically illustrated. The mounting seat 2 is in an L shape. The mounting seat 2 comprises the vertical fixed rod 21 and the horizontal fixed plate 22. The fixed rod 21 is used for being connected with the chassis 1. The fixed rod 21 is provided with the sliding groove 23. The fixed plate 22 is arranged on the upper end of the fixed rod 21 and faces the walking assembly 3. The buffering assembly 4 is arranged between the mounting seat 2 and the walking assembly 3.

[0079] In the embodiment, the structure of the buffering assembly 4 is specifically illustrated. The buffering assembly 4 comprises the damper 41 and the shock-absorbing spring 42. The damper 41 is arranged on the upper side of the sliding block assembly 31. The shock-absorbing spring 42 is sleeved outside the damper 41 and is connected with the sliding block assembly 31 at one end and abuts against the lower side of the fixed plate 22 at the other end. The buffering capacity is improved by the double buffering effect of the damper 41 and the shock-absorbing spring 42, and the damage to the chassis is further reduced.

[0080] In the embodiment, the structure of the walking part 30 is specifically illustrated, the walking part 30 comprises 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 with the mounting seat 2, 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 surface of the driving wheels 33 and driven wheels 34, and the driving is realized through the rotation of the driving wheels 33 and driven wheels 34, the structure is simple, and the track 35 is superior to the wheel in the aspects of passability, traction, stability, durability, load capacity, adaptability and environmental friendliness, and can be better applied to vehicle auxiliary obstacle crossing.

[0081] In the embodiment, the protection device for preventing the automobile chassis from being scratched comprises two mounting seats 2, the two mounting seats 2 are arranged at intervals and are located at the middle part of the chassis 1, and the walking assembly 3 is arranged on each mounting seat 2, and the two walking assemblies 3 can be better arranged on the chassis 1, and the movement is more smooth.

[0082] In the description of the present application, it should be noted that the terms "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0083] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0084] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A protective device for automobile chassis anti-scratch, characterized in that: include: A mounting base (2) for connecting to a chassis (1) on which a battery pack (5) is provided; a walking assembly (3) connected to the mounting seat (2), comprising a driving portion (36) and a walking portion (30), wherein the driving portion (36) is connected to the walking portion (30), wherein the lowest point of the walking portion (30) is lower than the lowest point of the chassis (1) and higher than the lowest point of the bottom of the wheel, and wherein the driving portion (36) is used to drive the walking portion (30) to move when the walking portion (30) contacts the ground, so as to generate a driving force to assist the vehicle in moving in a moving direction; The traveling assembly (3) is movable relative to the mounting seat (2) along the Z-axis direction of the vehicle, and a buffer assembly (4) is provided between the mounting seat (2) and the traveling assembly (3), and the buffer assembly (4) is located in the moving direction of the traveling assembly (3); It also includes a trigger component (6), the travel component (3) is used to be electrically connected to the battery pack (5) through the trigger component (6), and 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); The trigger assembly (6) comprises a first contact member (61) and a second contact member (62), wherein the first contact member (61) is arranged on the travel assembly (3), and 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 the upper limit position, the first contact member (61) and the second contact member (62) are electrically connected.

2. A protective device for automobile chassis anti-scratch according to claim 1, 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).

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

4. A protective device for automobile chassis anti-scratch according to claim 3, 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).

5. A protective device for automobile chassis scratch protection as claimed in claim 1, characterized in that: The walking part (30) includes: 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 transmission-connected with the driving wheel (33) and the driven wheel (34).

6. A protective device for automobile chassis against scratches according to any one of claims 1 to 5, characterized in that: It comprises two mounting seats (2), the two mounting seats (2) are spaced apart and both are located in the middle of the chassis (1), and each mounting seat (2) is provided with the walking assembly (3).

7. 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 6.

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