vehicle

Abstract

This invention discloses a vehicle comprising: a frame; a front underrun protection device, the front underrun protection device comprising: a main protective beam extending in a left-right direction and located below the front side of the cab, the main protective beam being connected to a longitudinal beam; a footrest mounting bracket; and a tilting pump mounted on the tilting mechanism mounting beam of the footrest mounting bracket at one of the left or right ends of the main protective beam. This changes the current situation where the tilting mechanism can only be arranged at the rear of the vehicle body, not only optimizing the overall vehicle layout space and reducing the difficulty of overall vehicle layout, but also avoiding blind spots during cab tilting. Furthermore, it allows the tilting mechanism to be mounted on the vehicle's existing footrest, making full use of the vehicle's existing structure, resulting in a more compact structure and reduced overall weight.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a vehicle. Background Technology

[0002] With the advancement of technology and changes in people's lifestyles, vehicles have gradually become more common in people's lives. Vehicle maintenance has also become an essential part of daily vehicle use. When inspecting or repairing components such as the engine, water tank, and compressor, the cab needs to be tilted. During tilting, a tilting pump installed on the vehicle is used to tilt the cab using hydraulic pressure.

[0003] In related technologies, the part of the vehicle connected to the tilt pump is located at the rear of the vehicle body, and there is no position at the front of the vehicle to connect to the tilt pump. This not only increases the difficulty of arranging the overall structure of the vehicle during structural design, but also creates blind spots in the user's field of vision when operating the tilt pump to tilt the cab at the rear of the vehicle, due to the distance between the user and the cab, making it easy to cause accidents, resulting in poor safety and inconvenience for vehicle maintenance. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a vehicle in which the tilting mechanism is located at the front of the driver's cab, eliminating blind spots for the driver when tilting the vehicle, thus enhancing safety.

[0005] The vehicle according to the present invention includes: a frame including longitudinal beams extending longitudinally, with a cab disposed above the front end of the longitudinal beams; a front lower protection device including: a main protection beam extending in a left-right direction and located below the front side of the cab, the main protection beam being connected to the front end of the longitudinal beams; a foot pedal mounting bracket extending in a front-rear direction, the foot pedal mounting bracket being located at the left-right ends of the main protection beam; and a tilting mechanism disposed in a front-rear direction at the front side of the cab, with one side of the tilting mechanism disposed on the foot pedal mounting bracket and the other side of the tilting mechanism connected to the cab, the tilting mechanism being used to tilt the cab forward or reset it.

[0006] In this way, on the one hand, the tilting mechanism can be set in the front of the cab along the front-rear direction, which can change the current situation where the tilting mechanism can only be arranged in the rear of the vehicle body. This not only optimizes the overall layout space of the vehicle and reduces the difficulty of the overall layout, but also avoids blind spots in the field of vision during the tilting of the cab. On the other hand, the tilting mechanism can be installed on the original footrest of the vehicle, which can make full use of the original structure of the vehicle, making the structure more compact and reducing the overall weight.

[0007] In some examples of the present invention, the foot pedal mounting bracket includes a flipping mechanism mounting beam and a foot pedal support plate. The front end of the flipping mechanism mounting beam is connected to the main protective beam and extends in the vertical direction. The foot pedal support plate is connected to the flipping mechanism mounting beam and extends outward in the horizontal direction. The foot pedal support plate is used to support the foot pedal of the cab. The flipping mechanism is disposed on the flipping mechanism mounting beam.

[0008] In some examples of the present invention, the vehicle further includes a tilt pump mounting bracket, which includes a mounting main board and a lower fixed flange. The lower fixed flange is disposed at the lower end of the mounting main board and overlaps the upper side of the tilt mechanism mounting beam. The tilt mechanism includes a tilt pump and a tilt hydraulic cylinder. One side of the tilt pump is fixed to the mounting main board, one end of the tilt hydraulic cylinder is controlled to be connected to the tilt pump, and the other end of the tilt hydraulic cylinder is connected to the bottom of the cab.

[0009] In some examples of the present invention, the vehicle further includes a front connecting beam connected between the front ends of the main protective beam and the longitudinal beam, a tilting hydraulic cylinder connected to the front connecting beam and the cab, and the tilting hydraulic cylinder being connected to the tilting pump via a pipeline.

[0010] In some examples of the present invention, the flipping mechanism further includes an adjustment switch disposed on the side of the mounting motherboard facing outward in the left-right direction. The adjustment switch is connected to the flipping pump to selectively adjust the operating state of the flipping pump.

[0011] In some examples of the present invention, the vehicle includes a foot pedal device and a pedal frame. The foot pedal device includes a side frame and an upper frame. There are two side frames, which are respectively disposed on both sides of the foot pedal support in the front-rear direction. The side frames extend in the vertical direction. The upper frame is connected to the upper ends of the two side frames. The tilt pump mounting bracket also includes an upper fixed flange, which is disposed on the upper end of the mounting main board and connected to the upper frame. The foot pedal device includes a body and a foot pedal connected to the body. The foot pedal device is nested on the outer periphery of the pedal frame. The foot pedal is disposed on the foot pedal support. The body has a clearance opening, which corresponds to the mounting main board, to facilitate operation of the adjustment switch.

[0012] In some examples of the present invention, the front lower protection device further includes a connecting beam, the footrests are multiple and spaced apart in the front-rear direction, the connecting beam extends in the front-rear direction and is connected to the multiple footrests, the connecting beam is provided with a positioning part, the footrests and the connecting beam are positioned and engaged through the positioning part, and the pedal frame and the footrests are positioned and engaged through the positioning part.

[0013] In some examples of the present invention, the front lower protection device further includes a variable cross-section support arm connected between the connecting beam and the main protection beam. The variable cross-section support arm is arc-shaped and gradually bends upward in the direction closer to the main protection beam in the front-rear direction, while the cross-sectional area of ​​the variable cross-section support arm gradually decreases in the direction away from the main protection beam in the front-rear direction.

[0014] In some examples of the present invention, the vehicle further includes a front connecting beam, an outer connecting plate is provided on the rear side of the main protective beam, the front end of the front connecting beam is connected to the outer connecting plate, the rear end of the front connecting beam is connected to the longitudinal beam, and a first energy-absorbing cavity is provided inside the outer connecting plate, wherein a plurality of spaced reinforcing sleeves are provided in the first energy-absorbing cavity.

[0015] In some examples of the present invention, box-type connecting brackets are respectively provided on the left and right sides of the outer connecting plate. The box-type connecting brackets include a first connecting plate and a second connecting plate. The first connecting plate extends in the left-right direction and is attached to and connected to the rear side of the main protective beam. The second connecting plate extends in the front-back direction and its front end is connected to the first connecting plate. The second connecting plate is attached to and connected to the sidewalls of the outer connecting plate in the left-right direction.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is one of the partial schematic diagrams of a vehicle according to an embodiment of the present invention; Figure 2 This is a second partial schematic diagram of a vehicle according to an embodiment of the present invention; Figure 3 This is a third partial schematic diagram of a vehicle according to an embodiment of the present invention; Figure 4 This is a fourth partial schematic diagram of a vehicle according to an embodiment of the present invention; Figure 5 This is a fifth partial schematic diagram of a vehicle according to an embodiment of the present invention; Figure 6 This is a schematic diagram of a vehicle's front underrun protection device according to an embodiment of the present invention; Figure 7 This is a schematic diagram of an external connecting plate according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the main protective beam according to an embodiment of the present invention; Figure 9 This is a cross-sectional view of the main protective beam according to an embodiment of the present invention.

[0018] Figure label: 1000, vehicles 100. Front underrun protection device; 10. Main protective beam; 11. Second energy-absorbing chamber; 12. Third reinforcing plate; 13. Upper energy-absorbing chamber; 14. Lower energy-absorbing chamber; 15. Dustproof end cap; 20. Front bumper mounting bracket; 21. Main mounting bracket; 22. Auxiliary mounting bracket; 30. External connecting plate; 31. Box body connecting bracket; 311. First connecting plate; 312. Second connecting plate; 32. First energy absorption cavity; 33. Reinforcing sleeve; 40. Foot pedal mounting bracket; 41. Tilting mechanism mounting beam; 411. Main beam; 4111. Main board; 41111. Tilting pump connector; 41112. Weight reduction hole; 4112. Side plate; 412. First reinforcing plate; 42. Foot pedal support plate; 421. Second reinforcing plate; 43. Connecting beam; 44. Variable cross-section support arm; 50. Longitudinal beam; 51. Tilting mechanism; 511. Tilting pump; 52. Tilting pump mounting bracket; 521. Mounting main board; 522. Lower fixed flange; 523. Upper fixed flange; 53. Adjustment switch; 54. Tilting hydraulic cylinder; 55. Pedal frame; 551. Side frame; 552. Upper frame; 56. Positioning part; 57. Foot pedal device; 571. Clearance opening; 572. Body part; 573. Foot pedal; 5731. First foot pedal; 5732. Second foot pedal; 58. Front connecting beam; 59. Piping; 60. Foot pedal connecting bracket. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0020] The following is for reference. Figures 1-9 The vehicle 1000 described in this invention is a heavy-duty truck. In some embodiments of the invention, the vehicle 1000 may be a heavy-duty truck.

[0021] Combination Figures 1-9 As shown, the vehicle 1000 according to the present invention may mainly include: a frame, a front underrun protection device 100, and a tilting pump 511. The frame includes a longitudinal beam 50, which extends longitudinally, and a cab is disposed above the front end of the longitudinal beam 50. The front underrun protection device 100 includes: a main protection beam 10, which extends in the left-right direction and is located below the front side of the cab. The main protection beam 10 is connected to the front end of the longitudinal beam 50. A foot pedal mounting bracket 40 extends in the front-rear direction and is located at the left-right end of the main protection beam 10. A tilting mechanism 51 is disposed in the front side of the cab in the front-rear direction, with one side of the tilting mechanism 51 disposed on the foot pedal mounting bracket 40 and the other side of the tilting mechanism 51 connected to the cab. The tilting mechanism 51 is used to drive the cab to tilt forward or return to its original position.

[0022] Specifically, by extending the main protective beam 10 in the left and right directions and positioning it below the front of the cab, the main protective beam 10 can protect the area below the cab, preventing damage to the area below the cab from frontal impacts and ensuring the safety of the occupants in the cab.

[0023] Furthermore, the foot pedal mounting bracket 40 extends in the front-to-back direction and is located at the left and right ends of the main protective beam 10. The foot pedal mounting bracket 40 can install and fix the foot pedal 573 of the vehicle 1000, thereby improving the stability and reliability of the foot pedal 573 installed on the vehicle 1000 and increasing the load-bearing capacity of the foot pedal 573.

[0024] Furthermore, by positioning the tilting mechanism 51 at the front of the cab in the front-rear direction, the driver can use the tilting mechanism 51 to tilt the cab of the vehicle 1000 forward for maintenance. Since the tilting mechanism 51 is located at the front of the cab, the driver can observe the road conditions in front of the vehicle 1000 during the tilting process without blind spots, thus preventing the cab from tilting and injuring pedestrians or the vehicle 1000, thereby improving the safety of the vehicle 1000.

[0025] In addition, by setting the flipping mechanism 51 on the original foot pedal mounting bracket 40 of the vehicle 1000, it is possible to avoid setting up a separate component for mounting the flipping mechanism 51, thereby improving the structural compactness of the vehicle 1000 and simplifying the assembly steps of the vehicle 1000.

[0026] Combination Figures 1-6 As shown, the foot pedal mounting bracket 40 includes a tilting mechanism mounting beam 41 and a foot pedal support plate 42. The front end of the tilting mechanism mounting beam 41 is connected to the main protective beam 10 and extends in the vertical direction. The foot pedal support plate 42 is connected to the tilting mechanism mounting beam 41 and extends outward in the horizontal direction. The foot pedal support plate 42 is used to support the foot pedal 573 in the cab. The tilting mechanism 51 is set on the tilting mechanism mounting beam 41. This not only ensures that the foot pedal 573 is stably and firmly installed on the foot pedal support plate 42, but also allows the tilting mechanism mounting beam 41 to provide a fixed position for the tilting mechanism 51. This arrangement not only further improves the structural compactness of the front lower protection device 100 of the vehicle 1000, but also prevents the setting of the tilting mechanism 51 from affecting the installation of the foot pedal 573 or other components.

[0027] In the existing technology, the tilting mechanism 51 can generally only be set at the rear of the vehicle body 1000. Other components of the vehicle 1000 need to be arranged after considering the setting position of the tilting mechanism 51. This will increase the difficulty of the overall vehicle structure layout. Furthermore, when the user tilts the cab of the vehicle 1000 from the rear of the vehicle body, due to the certain distance between the user and the cab, the user cannot clearly see the situation of pedestrians or the vehicle 1000 passing by near the cab. There will be blind spots and the risk of safety accidents caused by tilting the cab, resulting in poor safety.

[0028] This application, by fixing the tilting mechanism 51 on the front lower protective device 100 and on the foot pedal 573 on the left and right sides of the cab, not only changes the current situation where the tilting pump 511 can only be arranged in the rear of the vehicle body, but also prevents the arrangement of components in the rear of the vehicle 1000 from being too crowded and cramped. This not only optimizes the overall layout space of the vehicle and reduces the difficulty of the overall layout, but also, since the tilting pump 511 is used to tilt the cab of the vehicle 1000, the user can clearly observe the pedestrians and vehicles 1000 passing by near the cab when operating the tilting pump 511, thereby avoiding the blind spot of the user's observation of the situation near the cab during the vehicle body tilting process.

[0029] Furthermore, connecting the tilting mechanism mounting beam 41 to the footrest plate 42 allows the tilting mechanism mounting beam 41 and the footrest plate 42 to interact, each enhancing its own structural stability and robustness, thus optimizing the front underrun protection device 100 of the vehicle 1000.

[0030] In some embodiments of the present invention, the foot pedal mounting bracket 40 uses a stamping process, which saves material costs and achieves effective weight reduction while meeting the performance requirements.

[0031] In addition, in some embodiments of the present invention, the front lower protection device 100 can integrate the main protection beam 10 on the front side of the cab, the footrests 42 on the left and right sides of the cab, and the tilting mechanism mounting beam 41 for mounting the tilting pump 511 together, which can make the structure of the vehicle 1000 more compact and reduce the overall weight of the vehicle 1000.

[0032] Combination Figures 1-6 As shown, the vehicle 1000 also includes a tilt pump mounting bracket 52, which includes a mounting main board 521 and a lower fixed flange 522. The lower fixed flange 522 is located at the lower end of the mounting main board 521 and overlaps the upper side of the tilt mechanism mounting beam 41. The tilt mechanism 51 includes a tilt pump 511 and a tilt hydraulic cylinder 54. One side of the tilt pump 511 is fixed to the mounting main board 521, one end of the tilt hydraulic cylinder 54 is controlled to be connected to the tilt pump 511, and the other end of the tilt hydraulic cylinder 54 is connected to the bottom of the cab.

[0033] Specifically, by connecting the lower fixed flange 522 of the tilt pump mounting bracket 52 to the tilt mechanism mounting beam 41, the tilt pump mounting bracket 52 can be set on the tilt mechanism mounting beam 41, and the tilt pump 511 can be set on the side of the mounting main board 521 facing the cab in the left and right direction, which can ensure the stability and reliability of the tilt pump 511 installation.

[0034] Combination Figures 1-6As shown, the vehicle 1000 also includes a front connecting beam 58, which is connected between the front ends of the main protective beam 10 and the longitudinal beam 50. The tilting hydraulic cylinder 54 is connected to the front connecting beam 58 and the cab, and the tilting hydraulic cylinder 54 is connected to the tilting pump 511 through the pipeline 59.

[0035] Specifically, by connecting the tilting hydraulic cylinder 54 to the front connecting beam 58 and connecting the tilting hydraulic cylinder 54 to the tilting pump 511, not only can the tilting reliability of the cab be further improved, but the structural compactness of the vehicle 1000 can also be further improved.

[0036] In some embodiments of the present invention, the lower fixed flange 522 includes a first lower flange portion and a second lower flange portion. The first lower flange portion extends in the left-right direction and is parallel to the upper side of the tilting mechanism mounting beam 41. The first lower flange portion is in contact with the upper side of the tilting mechanism mounting beam 41. The second lower flange portion is disposed on the side of the first lower flange portion away from the cab in the left-right direction and extends downward. The second lower flange portion is in contact with the side of the tilting mechanism mounting beam 41 away from the cab in the left-right direction. This can further improve the stability and reliability of the connection and fixation between the lower fixed flange 522 and the tilting mechanism mounting beam 41.

[0037] Combination Figure 4 and Figure 5 As shown, an adjustment switch 53 is provided on the side of the main board 521 facing away from the cab in the left and right directions. The adjustment switch 53 is connected to the tilt pump 511 to selectively adjust the working state of the tilt pump 511.

[0038] Specifically, by installing an adjustment switch 53 on the side of the main board 521 facing away from the cab, and connecting the adjustment switch 53 to the tilting pump 511, the user can control the adjustment switch 53 to adjust the working state of the tilting pump 511, thereby selectively tilting the cab. This reduces the difficulty of operating the adjustment switch 53 for the user. It should be noted that the adjustment switch 53 includes electric tilting, manual tilting, and lifting direction adjustment switches.

[0039] In some embodiments of the present invention, the adjustment process of the regulating switch 53 to adjust the tilting pump 511 is as follows: When the chassis is powered on at low voltage, the regulating switch 53 is turned to the cab-raising position. The electric tilting button is pressed, and the motor drives the tilting pump 511 to rotate, providing pressure to the vehicle body tilting hydraulic cylinder 54 through the oil pipe. The tilting hydraulic cylinder 54 extends, and the cab begins to tilt. When the electric tilting button is released or the cab tilts to its maximum angle, the vehicle body stops tilting. When the regulating switch 53 is turned to the cab-lowering position, the electric tilting button is pressed, and the motor drives the tilting pump 511 to rotate, depressurizing the tilting hydraulic cylinder 54 through the oil pipe. The tilting hydraulic cylinder 54 retracts, and the cab begins to fall. When the electric tilting button is released or the cab falls to its lowest position, the vehicle body stops descending.

[0040] Combination Figures 1-6 As shown, the vehicle 1000 includes a foot pedal device 57 and a pedal frame 55. The foot pedal device 57 includes a side frame 551 and an upper frame 552. There are two side frames 551, which are respectively arranged on both sides of the foot pedal support plate 42 in the front-rear direction. The side frames 551 extend in the vertical direction. The upper frame 552 is connected to the upper end of the two side frames 551. The tilt pump mounting bracket 52 also includes an upper fixed flange 523, which is arranged on the upper end of the mounting main board 521 and connected to the upper frame 552. The foot pedal device 57 includes a body part 572 and a foot pedal 573 connected to the body part 572. The foot pedal device 57 is nested on the outer periphery of the pedal frame 55. The foot pedal 573 is arranged on the foot pedal support plate 42. The body part 572 is provided with a clearance opening 571, which corresponds to the mounting main board 521 to facilitate the operation of the adjustment switch 53.

[0041] Specifically, by placing the foot pedal 573 on the foot pedal support plate 42, the stability and reliability of the foot pedal 573 can be improved. Furthermore, by installing the foot pedal device 57 on the outside of the pedal frame 55 and connecting it to the pedal frame 55, the overall structural reliability of the foot pedal device 57 can be further improved, and the maximum load-bearing capacity of the foot pedal device 57 can be increased, thereby ensuring the safety of the 1,000 occupants of the vehicle.

[0042] Furthermore, the main body 572 is provided with a clearance opening 571, which corresponds to the mounting main board 521 to facilitate the operation of the adjustment switch 53. This not only makes it convenient for the driver and passengers to operate the adjustment switch 53, but also makes the structure of the vehicle 1000 more compact.

[0043] Combination Figure 1 As shown, there are multiple foot pedals 573, which are spaced apart in the vertical direction. The lowest foot pedal 573 is located on the foot pedal support plate 42. There is a clearance opening 571 between two adjacent foot pedals 573, and the clearance opening 571 avoids the adjustment switch 53.

[0044] Specifically, by setting a clearance opening 571 between two adjacent foot pedals 573 among the multiple foot pedals 573 on the vehicle body, the clearance opening 571 can avoid the adjustment switch 53, thus making the structure of the vehicle 1000 more compact.

[0045] Furthermore, a cover is provided on the vehicle body at the clearance opening 571. The cover is detachably installed at the clearance opening 571 to protect the adjustment switch 53 when the user does not need to operate the adjustment switch 53. When the user needs to operate the adjustment switch 53, the cover can be opened, which can reduce the difficulty of operation for the user.

[0046] Combination Figure 3 As shown, the vehicle 1000 also includes a foot pedal connecting bracket 60. There are two foot pedals 573, namely a first foot pedal 5731 and a second foot pedal 5732. The second foot pedal 5732 is spaced above the first foot pedal 5731. The first foot pedal 5731 is set on the foot pedal support plate 42. The foot pedal connecting bracket 60 is connected to the pedal frame 55. The second foot pedal 5732 is set on the foot pedal connecting bracket 60. In this way, while ensuring the stability of the first foot pedal 5731, the foot pedal connecting bracket 60 is connected to the pedal frame 55, and the second foot pedal 5732 is connected to the foot pedal connecting bracket 60. This makes the second foot pedal 5732 more stable and prevents the driver and passengers from damaging the second foot pedal 5732. This improves the overall stability of the foot pedal device 57 and thus improves the safety of the driver and passengers.

[0047] Specifically, by setting two side frames 551 on both sides of the footrest plate 42 in the front and rear directions respectively, and connecting the upper frame 552 between the two side frames 551, and connecting the upper frame 552 to the upper fixed flange 523 of the tilt pump mounting bracket 52, the rigidity of the pedal frame 55 can be increased, and the torsion of the tilt pump 511 on the tilt mechanism mounting beam 41 during driving can be reduced.

[0048] Combination Figures 1-6 As shown, the front lower protection device 100 also includes a connecting beam 43, multiple footrests 42 are spaced apart in the front-rear direction, the connecting beam 43 extends in the front-rear direction and is connected to the multiple footrests 42, a positioning part 56 is provided on the connecting beam 43, the footrests 42 and the connecting beam 43 are positioned and engaged by the positioning part 56, and the pedal frame 55 and the footrests 42 are positioned and engaged by the positioning part 56.

[0049] Specifically, there are multiple foot pedals 42, which are spaced apart in the front-to-back direction and connected by a connecting beam 43. The foremost foot pedal 42 is connected to the main protective beam 10 by a variable cross-section support arm 44. By setting multiple foot pedals 42, arranging them spaced apart in the front-to-back direction, and connecting adjacent foot pedals 42 with the connecting beam 43, the structural strength of the foot pedal mounting bracket 40 can be improved.

[0050] In addition, by setting a positioning part 56 on the connecting beam 43, the positioning part 56 can not only position the welding between the connecting beam 43 and the footrest plate 42, but also position the welding between the side frame 551 and the footrest plate 42. This can not only improve the assembly accuracy of the vehicle 1000, but also reduce the assembly difficulty of the vehicle 1000.

[0051] Furthermore, in some embodiments of the present invention, the front lower protective device 100 further includes a variable cross-section support arm 44, which is connected between the connecting beam 43 and the main protective beam 10. The variable cross-section support arm 44 is arc-shaped and gradually bends upward in the direction close to the main protective beam 10 in the front-rear direction. In the direction away from the main protective beam 10 in the front-rear direction, the cross-sectional area of ​​the variable cross-section support arm 44 gradually decreases. Specifically, the foremost footrest 42 among the plurality of footrests 42 is connected to the main protective beam 10 by a variable cross-section support arm 44. The variable cross-section support arm 44 is arc-shaped and gradually bends upward in the direction close to the main protective beam 10 in the front-rear direction. In the direction away from the main protective beam 10 in the front-rear direction, the cross-sectional area of ​​the variable cross-section support arm 44 gradually decreases. With this configuration, the variable cross-section support arm 44 can withstand external forces in all directions, thereby further improving the strength of the connection and fixation between the footrest 42 and the main protective beam 10.

[0052] Combination Figures 1-6 As shown, the front lower protection device 100 also includes a front bumper fixing bracket 20, and the vehicle 1000 also includes a front bumper. The front bumper fixing bracket 20 is disposed on the upper side of the main protection beam 10 and connected to the front bumper. The vehicle 1000 also includes a front connecting beam 58, and an outer connecting plate 30 is disposed on the rear side of the main protection beam 10. The front end of the front connecting beam 58 is connected to the outer connecting plate 30, and the rear end of the front connecting beam 58 is connected to the longitudinal beam 50.

[0053] Specifically, by setting the front bumper fixing bracket 20 on the upper side of the main protective beam 10, setting the outer connecting plate 30 on the rear side of the main protective beam 10, and setting the foot pedal mounting bracket 40 at both ends of the main protective beam 10 in the left and right directions, the front bumper fixing bracket 20, the outer connecting plate 30, and the foot pedal mounting bracket 40 can be integrated on the main protective beam 10. This allows the front lower protection device 100 of the vehicle 1000 to not only provide anti-collision protection for the frame of the vehicle 1000, but also to provide mounting positions for the front bumper, the outer connecting plate 30, and the foot pedal 573. After setting the front lower protection device 100 of the vehicle 1000 on the vehicle 1000, the structural layout of the vehicle 1000 can be made more compact, thereby optimizing the structural design of the vehicle 1000.

[0054] In addition, since the front bumper mounting bracket 20, the outer connecting plate 30 and the foot pedal mounting bracket 40 are located at different positions on the main protective beam 10, after the front bumper is mounted on the front bumper mounting bracket 20 and the foot pedal 573 is mounted on the foot pedal mounting bracket 40, the front bumper, the outer connecting plate 30 and the foot pedal 573 will be spaced apart and will not interfere with each other. This can further optimize the structural design of the vehicle 1000.

[0055] Combination Figures 6-9 As shown, the tilting mechanism mounting beam 41 includes a main beam 411 and a first reinforcing plate 412. The main beam 411 includes a main plate 4111 and a side plate 4112. The side plate 4112 is disposed on both sides of the main plate 4111 in the vertical direction. The side plate 4112 extends in the left and right direction away from the foot pedal mounting bracket 40. The first reinforcing plate 412 extends in the vertical direction and its two sides in the vertical direction are respectively connected to the two side plates 4112. The left and right side of the first reinforcing plate 412 is connected to the main plate 4111. The main plate 4111 is suitable for mounting the tilting pump 511. Specifically, the tilting mechanism mounting beam 41 can mainly include a main beam 411 and a first reinforcing plate 412. The main beam 411 is composed of a main plate 4111 and a side plate 4112. The side plate 4112 is set on both sides of the main plate 4111 in the vertical direction, and the side plate 4112 extends away from the foot pedal mounting bracket 40 in the horizontal direction. This makes the main beam 411 a channel-shaped main beam 411, which can improve the structural strength of the main beam 411 without increasing its weight as much as possible. Furthermore, the upper and lower sides of the first reinforcing plate 412 are connected to the side plate 4112 respectively, and at least one side of the first reinforcing plate 412 in the horizontal direction is connected to the main plate 4111. This can further improve the structural strength of the main beam 411. Since the main plate 4111 is used to install the tilting pump 511, the side plate 4112 and the first reinforcing plate 412 set in this way will not affect the installation of the tilting pump 511.

[0056] In some embodiments of the present invention, the two side plates 4112 are respectively connected to the upper and lower sides of the main protective beam 10, and the connection between the side plates 4112 and the main protective beam 10 is provided with reinforcing ribs, which can improve the connection strength between the side plates 4112 and the main protective beam 10.

[0057] Combination Figures 6-9 As shown, the motherboard 4111 is provided with a tilt pump connector 41111 and a weight reduction hole 41112. There are multiple tilt pump connectors 41111, which are spaced apart in the front-to-back direction. The tilt pump connectors 41111 are suitable for mounting and fixing the tilt pump 511. The weight reduction holes 41112 extend in the vertical direction and are multiple. The multiple weight reduction holes 41112 are spaced apart in the front-to-back direction and avoid multiple tilt pump connectors 41111.

[0058] Specifically, by setting multiple weight-reducing holes 41112 spaced apart in the left and right directions on the main board 4111, and making the weight-reducing holes 41112 extend in the vertical direction, not only can the weight of the flipping mechanism mounting beam 41 be reduced, but the weight distribution of the flipping mechanism mounting beam 41 can also be made more uniform.

[0059] Furthermore, multiple tilt pump connectors 41111 are provided, and these multiple tilt pump connectors 41111 are also spaced apart in the left and right directions. Multiple weight reduction holes 41112 will avoid multiple tilt pump connectors 41111. This can prevent the weight reduction holes 41112 from affecting the connection and fixation between the tilt pump connectors 41111 and the tilt pump 511, and can ensure that the connection between the tilt pump connectors 41111 and the tilt pump 511 is stable and firm.

[0060] In some embodiments of the present invention, the tilt pump connector 41111 is a nut, which is welded and fixed to the main board 4111.

[0061] Combination Figures 6-9 As shown, the foot pedal mounting bracket 40 may also mainly include a second reinforcing plate 421, which is connected between the main board 4111 and the main protective beam 10. The second reinforcing plate 421 is inclined and extended relative to both the main board 4111 and the main protective beam 10.

[0062] Specifically, under the premise that the longitudinal end of the tilting mechanism mounting beam 41 is stably and reliably connected and fixed to the main protective beam 10, an inclined second reinforcing plate 421 can be set between the main board 4111 and the main protective beam 10. The second reinforcing plate 421 can improve the stability and reliability of the connection and fixation between the main board 4111 and the main protective beam 10 without increasing the volume of the front lower protective device 100 of the vehicle 1000.

[0063] Combination Figures 6-9As shown, box-type connecting brackets 31 are respectively provided on the left and right sides of the outer connecting plate 30. The box-type connecting brackets 31 include a first connecting plate 311 and a second connecting plate 312. The first connecting plate 311 extends in the left and right direction and is attached to and connected to the rear side of the main protective beam 10. The second connecting plate 312 extends in the front and rear direction and its front end is connected to the first connecting plate 311. The second connecting plate 312 is attached to and connected to the side wall of the outer connecting plate 30 in the left and right directions.

[0064] Specifically, by connecting and fixing multiple external connecting plates 30 to the vehicle frame, the front lower protection device 100 of the vehicle 1000 can be stably and firmly applied to the vehicle 1000. By setting a box connecting bracket 31 on the main protective beam 10 and setting a box connecting bracket 31 on both sides of each external connecting plate 30 in the left and right directions, the reliability of the connection and fixing between the external connecting plate 30 and the main protective beam 10 can be guaranteed.

[0065] Furthermore, the box-type connecting bracket 31 includes a first connecting plate 311 and a second connecting plate 312. The first connecting plate 311 extends in the left-right direction and is connected to the main protective beam 10, which can ensure the stability and reliability of the box-type connecting bracket 31 installed on the main protective beam 10. The second connecting plate 312 extends in the front-back direction and its front end is connected to the first connecting plate 311, and the second connecting plate 312 is connected to the outer connecting plate 30. This can improve the stability and reliability of the connection and fixation between the box-type connecting bracket 31 and the outer connecting plate 30.

[0066] In some embodiments of the present invention, the main protective beam 10 is provided with a plurality of external connecting plates 30, and the vehicle 1000 has a plurality of longitudinal beams 50, the plurality of longitudinal beams 50 and the plurality of external connecting plates 30 being connected one-to-one.

[0067] Combination Figure 7 As shown, the outer connecting plate 30 has a first energy-absorbing cavity 32 inside, and a plurality of spaced reinforcing sleeves 33 are provided in the first energy-absorbing cavity 32. Specifically, by providing the first energy-absorbing cavity 32 inside the outer connecting plate 30, the first energy-absorbing cavity 32 can play a role in absorbing and buffering external forces, thereby improving the connection strength between the outer connecting plate 30 and the vehicle frame.

[0068] Furthermore, by providing multiple spaced reinforcing sleeves 33 in the first energy-absorbing cavity 32, the strength of the outer connecting plate 30 can be further improved.

[0069] Combination Figure 9As shown, the main protective beam 10 is hollow inside and forms a second energy-absorbing cavity 11. A third reinforcing plate 12 is provided in the second energy-absorbing cavity 11. The third reinforcing plate 12 extends in the front-back direction and divides the second energy-absorbing cavity 11 into an upper energy-absorbing cavity 13 and a lower energy-absorbing cavity 14. The two ends of the main protective beam 10 in the left-right direction are open and covered with dustproof end caps 15.

[0070] Specifically, by making the main protective beam 10 hollow and forming a second energy-absorbing cavity 11 inside the main protective beam 10, the second energy-absorbing cavity 11 can absorb external forces, thereby improving the structural strength of the main protective beam 10 while ensuring its lightweight design.

[0071] Furthermore, the third reinforcing plate 12 extends in the front-rear direction and divides the second energy-absorbing cavity 11 into an upper energy-absorbing cavity 13 and a lower energy-absorbing cavity 14. This can further enhance the energy absorption and buffering effect of the second energy-absorbing cavity 11 against external forces and further enhance the structural strength of the main protective beam 10.

[0072] Furthermore, by opening both ends of the main protective beam 10 in the left and right directions, and covering the open ends of the main protective beam 10 in the left and right directions with dustproof end caps 15, the dustproof end caps 15 can play a role in corrosion prevention. In addition, since the dustproof end caps 15 are designed with leakage holes, the dustproof end caps 15 can also solve the problem of leakage of electrophoretic paint while strengthening the front lower protective device 100.

[0073] Combination Figures 6-9 As shown, the front bumper mounting bracket 20 includes a main mounting bracket 21 and an auxiliary mounting bracket 22. There are multiple main mounting brackets 21 and multiple auxiliary mounting brackets 22. The multiple main mounting brackets 21 are respectively arranged at intervals on both sides of the multiple auxiliary mounting brackets 22 in the left and right directions.

[0074] Specifically, by setting multiple main fixing brackets 21 and multiple auxiliary fixing brackets 22, and by placing the multiple main fixing brackets 21 at intervals on both sides of the multiple auxiliary fixing brackets 22 in the left and right directions, the auxiliary fixing brackets 22 protrude upwards relative to the main fixing brackets 21. The part of the main fixing brackets 21 connected to the front bumper is the part of the front bumper with a larger weight. The auxiliary fixing brackets 22 can bear part of the weight of the front bumper, so that the force on the front bumper is more even.

[0075] The vehicle 1000 according to the present invention may mainly include: the aforementioned front underrun protection device 100 of the vehicle 1000. When the front underrun protection device 100 of the vehicle 1000 is impacted by an external force, the front underrun protection device 100 will buffer the external force, thereby protecting the internal components of the vehicle 1000 and the occupants, and improving the reliability and safety of the vehicle 1000.

[0076] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0077] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0078] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle characterized by comprising: include: The vehicle frame includes a longitudinal beam (50) extending longitudinally, and a cab is disposed above the front end of the longitudinal beam (50); A front underrun protection device (100), the front underrun protection device (100) comprising: The main protective beam (10) extends in the left and right direction and is located below the front side of the cab. The main protective beam (10) is connected to the front end of the longitudinal beam (50). Foot pedal mounting bracket (40) extends in the front-to-back direction and is located at the left-to-right ends of the main protective beam (10); A flipping mechanism (51) is provided at the front side of the cab in the front-rear direction, and one side of the flipping mechanism (51) is provided on the foot pedal mounting bracket (40), and the other side of the flipping mechanism (51) is connected to the cab. The flipping mechanism (51) is used to drive the cab to flip forward or reset. The foot pedal mounting bracket (40) includes a flipping mechanism mounting beam (41) and a foot pedal support plate (42). The front end of the flipping mechanism mounting beam (41) is connected to the main protective beam (10) and extends in the vertical direction. The foot pedal support plate (42) is connected to the flipping mechanism mounting beam (41) and extends outward in the horizontal direction. The foot pedal support plate (42) is used to support the foot pedal (573) of the cab. The flipping mechanism (51) is mounted on the flipping mechanism mounting beam (41). The tilting pump mounting bracket (52) includes a mounting main board (521) and a lower fixed flange (522). The lower fixed flange (522) is located at the lower end of the mounting main board (521) and overlaps the upper side of the tilting mechanism mounting beam (41). The tilting mechanism (51) includes a tilting pump (511) and a tilting hydraulic cylinder (54). One side of the tilting pump (511) is fixed to the mounting main board (521). One end of the tilting hydraulic cylinder (54) is controlled to be connected to the tilting pump (511), and the other end of the tilting hydraulic cylinder (54) is connected to the bottom of the cab.

2. The vehicle of claim 1, wherein It also includes a front connecting beam (58), which is connected between the front end of the main protective beam (10) and the longitudinal beam (50). The tilting hydraulic cylinder (54) is connected to the front connecting beam (58) and the cab. The tilting hydraulic cylinder (54) is connected to the tilting pump (511) through a pipeline (59).

3. The vehicle of claim 1, wherein The flipping mechanism (51) also includes an adjustment switch (53), which is located on the side of the mounting motherboard (521) facing outward in the left-right direction. The adjustment switch (53) is connected to the flipping pump (511) to selectively adjust the working state of the flipping pump (511).

4. The vehicle of claim 3, wherein The vehicle (1000) includes a foot pedal device (57) and a pedal frame (55). The foot pedal device (57) includes a side frame (551) and an upper frame (552). There are two side frames (551) respectively located on both sides of the foot pedal support plate (42) in the front-rear direction. The side frames (551) extend in the vertical direction. The upper frame (552) is connected to the upper ends of the two side frames (551). The tilting pump mounting bracket (52) also includes an upper fixed flange (523). The upper fixed flange (523) is provided with... The foot pedal device (57) is located at the upper end of the mounting main board (521) and connected to the upper frame (552). The foot pedal device (57) includes a main body (572) and a foot pedal (573) connected to the main body (572). The foot pedal device (57) is nested on the outer periphery of the pedal frame (55). The foot pedal (573) is disposed on the foot pedal support plate (42). The main body (572) is provided with a clearance opening (571). The clearance opening (571) corresponds to the mounting main board (521) to facilitate the operation of the adjustment switch (53).

5. The vehicle of claim 4, wherein The front lower protection device (100) also includes a connecting beam (43), and there are multiple foot pedals (42) spaced apart in the front-rear direction. The connecting beam (43) extends in the front-rear direction and is connected to the multiple foot pedals (42). The connecting beam (43) is provided with a positioning part (56). The foot pedals (42) and the connecting beam (43) are positioned and engaged by the positioning part (56). The pedal frame (55) and the foot pedals (42) are positioned and engaged by the positioning part (56).

6. The vehicle of claim 5, wherein The front lower protective device (100) also includes a variable cross-section support arm (44), which is connected between the connecting beam (43) and the main protective beam (10). The variable cross-section support arm (44) is arc-shaped. The variable cross-section support arm (44) is gradually bent upward in the direction close to the main protective beam (10) in the front-rear direction, and the cross-sectional area of ​​the variable cross-section support arm (44) gradually decreases in the direction away from the main protective beam (10) in the front-rear direction.

7. The vehicle according to claim 1, characterized in that, The vehicle (1000) also includes a front connecting beam (58), and an outer connecting plate (30) is provided on the rear side of the main protective beam (10). The front end of the front connecting beam (58) is connected to the outer connecting plate (30), and the rear end of the front connecting beam (58) is connected to the longitudinal beam (50). A first energy-absorbing cavity (32) is provided inside the outer connecting plate (30), and a plurality of spaced reinforcing sleeves (33) are provided in the first energy-absorbing cavity (32).

8. The vehicle according to claim 7, characterized in that, Box connecting brackets (31) are respectively provided on the left and right sides of the outer connecting plate (30). The box connecting brackets (31) include a first connecting plate (311) and a second connecting plate (312). The first connecting plate (311) extends in the left and right direction and is attached to and connected to the rear side of the main protective beam (10). The second connecting plate (312) extends in the front and rear direction and its front end is connected to the first connecting plate (311). The second connecting plate (312) is attached to and connected to the side wall of the outer connecting plate (30) in the left and right directions.

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