Bumper assembly, assembling method with bumper assembly and rear bumper assembly

Abstract

The invention relates to the field of rear anti-collision beams, in particular to a bumper assembly, an assembling method with the bumper assembly and a rear bumper assembly. A towing hook sleeve is arranged on the rear anti-collision beam; the rear anti-collision beam comprises an anti-collision beam body, and the anti-collision beam body comprises an anti-collision beam main body; the interior of the anti-collision beam main body is hollow to form an internal cavity; a reinforced profile is arranged in the inner cavity; the reinforced profile is fixed in the anti-collision beam body through a riveting process; through cooperative use of the anti-collision beam body and the reinforced profiles, the structural strength of the rear anti-collision beam can be greatly improved; the dragging load can reach 1.0 time of the weight of the automobile, the automobile can be rescued under special conditions without being damaged, and the use scene is expanded.

Description

Technical Field

[0001] The invention relates to the field of rear anti-collision beams, in particular to a bumper assembly, an assembling method of the bumper assembly and a rear bumper assembly. Background Art

[0002] With the continuous development of the automobile industry, the safety performance of automobiles has received more and more attention.

[0003] As an important passive safety device of the vehicle, the main function of the car bumper is to absorb and reduce external impact forces, protect the front and rear structures of the vehicle body and the safety of the passengers in the vehicle.

[0004] Traditional rear anti-collision beams of vehicle bodies usually adopt simple metal structures, such as beams with U-shaped or rectangular cross-sections, which are fixed to the vehicle body by welding or bolting.

[0005] However, with the continuous improvement of automobile safety standards and consumers' increasing attention to vehicle safety performance, the traditional rear anti-collision beam design has gradually exposed some shortcomings.

[0006] 1. Insufficient shear resistance: During vehicle towing, especially when the towing angle is large, the traditional rear anti-collision beam design is often unable to effectively resist the shear force at the towing hook sleeve, which can easily cause the connection between the towing hook sleeve and the anti-collision beam body to loosen or even be damaged, affecting the towing safety and reliability.

[0007] 2. Limited connection strength: In traditional designs, the connection area between the energy absorption box and the rear anti-collision beam body is small, and the shear force borne by a single connection point is large, which is easy to break or deform during a collision, and the cushioning effect of the energy absorption box cannot be fully exerted.

[0008] 3. Insufficient connection strength of the end plate: The connection strength between the end plate and the energy absorption box is low, which makes it difficult to withstand large impact forces and is easily damaged during collision or towing, affecting the stability of the entire rear anti-collision beam assembly.

[0009] The existing patent CN 202879403 U - A rear bumper beam structure for the Pentium D003 model does not clearly disclose the technical content for solving the above technical problems.

[0010] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the design of the existing rear bumper structure. Summary of the invention

[0011] The purpose of the invention is to provide a novel vehicle body rear bumper assembly with high structural strength.

[0012] In order to achieve the above object, the technical solution adopted by the present invention is:

[0013] A bumper assembly includes a rear anti-collision beam; a towing hook sleeve is provided on the rear anti-collision beam;

[0014] The rear anti-collision beam comprises an anti-collision beam body, and the anti-collision beam body comprises an anti-collision beam main body; the anti-collision beam main body is hollow inside to form an internal cavity; a partition plate is arranged inside the internal cavity; the partition plate divides the internal cavity into two single cavities; the vertical section of the anti-collision beam main body is in a Japanese character shape;

[0015] A reinforcing profile is arranged in the internal cavity; the reinforcing profile is fixed in the anti-collision beam body by a riveting process.

[0016] A reinforcing profile is respectively arranged in each of the two monomer cavities; each of the reinforcing profiles is respectively attached to the partition plate; and the vertical cross-section of the reinforcing profile is in the shape of a Chinese character U.

[0017] Both ends of the rear anti-collision beam are connected to a mounting end plate through an energy absorption box;

[0018] At least one reinforcement mechanism is provided between each energy absorption box and the rear anti-collision beam; the reinforcement mechanism comprises a reinforcement block; one end of the reinforcement block is connected to the anti-collision beam body, and the other end is connected to the energy absorption box; the reinforcement block, the anti-collision beam body and the energy absorption box are all arranged in an intersecting manner.

[0019] Both sides of each energy absorption box are connected to the anti-collision beam body through a reinforcement mechanism; each reinforcement block includes a block body, and a lap connection plate is respectively provided at both ends of the block body.

[0020] The vertical cross section of the block is trapezoidal; a weight-reducing hole is provided on the block; and a fitting inclined surface is provided on the block.

[0021] The towing hook sleeve penetrates the anti-collision beam body and the reinforcement profile arrangement at the same time.

[0022] The mounting end plate is provided with a rib structure, and the rib structure includes two end plate reinforcing ribs arranged relatively spaced apart on the mounting end plate; an assembly groove is formed between the two end plate reinforcing ribs; and the energy absorption box is inserted into the assembly groove.

[0023] The energy absorption box is provided with an overlapping notch; the vertical cross section of the energy absorption box is L-shaped; the rear anti-collision beam is overlapped on the overlapping notch of the energy absorption box.

[0024] An assembly method of the bumper assembly, the assembly method comprising the following steps:

[0025] Step 1: First assemble the anti-collision beam body and the reinforcement profile to form the rear anti-collision beam;

[0026] Step 2: After completing step 1, plug the towing hook sleeve into the rear anti-collision beam in step 1;

[0027] Step 3: After completing step 2, connect the energy absorption box to the rear anti-collision beam;

[0028] Step 4: Determine the number of reinforcement mechanisms between the rear anti-collision beam and the energy absorption box, and then install the corresponding reinforcement mechanisms at corresponding positions between the rear anti-collision beam and the energy absorption box to form a semi-finished bumper;

[0029] Step 5: After step 4 is completed, the semi-finished bumper assembled in step 4 is connected to the corresponding mounting end plate;

[0030] Step 6: After completing step 5, the assembly of a bumper assembly is completed. If you need to repeat the assembly, just repeat steps 1-5.

[0031] A rear bumper assembly comprises a rear bumper body and the bumper assembly;

[0032] The bumper assembly further includes a mounting mechanism disposed on the rear anti-collision beam, the mounting mechanism including a plurality of support frames spaced apart and distributed on the anti-collision beam body;

[0033] The support frame includes a frame body, the frame body includes an upper frame plate and a lower frame plate, the upper frame plate and the lower frame plate are connected at both ends by connecting frame plates, the frame body is annular, and a frame reinforcement plate is provided in the frame body;

[0034] The rear bumper body is overlapped on a mounting mechanism in the bumper assembly.

[0035] The advantages of the present invention are:

[0036] A bumper assembly, an assembling method of the bumper assembly and a rear bumper assembly having the bumper assembly.

[0037] The present invention can greatly improve the structural strength of the rear anti-collision beam through the coordinated use of the anti-collision beam body and the reinforcing profile; the towing load can reach 1.0 times the weight of the vehicle, solving the problem of rescuing the vehicle in special circumstances without damaging the vehicle, thereby expanding the use scenarios.

[0038] The bumper assembly of the present invention has a small increase in overall weight and cost, and significantly improves strength, can meet the requirement that the vehicle can be rescued in special circumstances without damaging the vehicle, and reduces the risk of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The following is a brief description of the contents expressed in the drawings of the present specification and the marks in the drawings:

[0040] Figure 1 It is a structural schematic diagram of the bumper assembly;

[0041] Figure 2 This is an enlarged view of the first-person perspective of the energy absorption box area;

[0042] Figure 3 is Figure 2 The sectional view taken along A-A;

[0043] Figure 4 is an enlarged view of the second perspective of the energy absorption box area;

[0044] Figure 5 is Figure 2 The sectional view taken along B-B;

[0045] Figure 6 is an isometric view of the energy absorption box area;

[0046] Figure 7 is a schematic structural view of the rear bumper assembly.

[0047] Figure 8 is a partial enlarged view when the bumper assembly is connected to the rear bumper body.

[0048] The markings in the above figures are all:

[0049] 1. Rear anti-collision beam, 2. Trailer hook sleeve, 3. Energy absorption box, 4. Installation end plate, 5. Reinforcement mechanism, 6. Support frame, 7. Sponge pad, 8. Rear bumper body. Detailed implementation manners

[0050] The following further describes in detail the specific implementation manners of the present invention by describing the optimal embodiments with reference to the accompanying drawings.

[0051] A bumper assembly includes a rear anti-collision beam 1; a trailer hook sleeve 2 is provided on the rear anti-collision beam 1; the rear anti-collision beam 1 is the core component of the bumper assembly, and its main function is to absorb and disperse collision energy to protect the rear structure of the vehicle and the safety of the occupants; the trailer hook sleeve 2 is provided on the rear anti-collision beam 1 for installing a trailer hook to facilitate the towing operation of the vehicle when needed.

[0052] In the present invention, the rear anti-collision beam 1 includes an anti-collision beam body 11, and the anti-collision beam body 11 includes an anti-collision beam main body 102; the interior of the anti-collision beam main body 102 is hollow to form an internal cavity; a partition plate 101 is provided in the internal cavity; the partition plate 101 divides the internal cavity into two single cavities 103; the vertical cross-section of the anti-collision beam body 11 is in a shape of a Chinese character 'Ri'; the anti-collision beam main body 102 is the main part of the rear anti-collision beam 1, and its interior is hollow to form an internal cavity; this hollow design helps to reduce the weight and can better absorb energy during a collision; the partition plate 101 divides the internal cavity into two single cavities 103; this partition design can further optimize the energy absorption effect and prevent the collision energy from being overly concentrated in a single cavity, thereby improving the overall anti-impact performance.

[0053] Meanwhile, the existence of the internal cavity facilitates the subsequent arrangement and placement of the reinforcing profile 12.

[0054] In the present invention, the vertical cross-section of the anti-collision beam body 11 is in the shape of a Chinese character 'Ri': This cross-sectional shape resembles the Chinese character 'Ri' and is usually composed of two upper and lower plates and a middle partition plate 101; this structural design not only enhances the longitudinal strength of the anti-collision beam but also further improves the bending resistance performance through the partition plate 101.

[0055] In addition, in the present invention, a reinforcing profile 12 is provided in the internal cavity; the reinforcing profile 12 is fixed in the anti-collision beam body 11 by a riveting process; by the combined use of the anti-collision beam body 11 and the reinforcing profile 12 in the present invention, the structural strength of the rear anti-collision beam 1 can be greatly improved; the towing load can reach 1.0 times the vehicle weight, solving the problem that the vehicle can be rescued without damage in special situations and expanding the usage scenarios.

[0056] The bumper assembly of the present invention has a small increase in overall weight and cost, a significant improvement in strength, can meet the requirement that the vehicle can be rescued without damage in special situations, and reduces the usage risk.

[0057] The reinforcing profile 12 is installed in the internal cavity and fixed in the anti-collision beam body 11 by a riveting process; the riveting process is a reliable connection method that can firmly fix the reinforcing profile 12 inside without damaging the structure of the anti-collision beam main body 102.

[0058] The function of the reinforcing profile 12 is to further enhance the structural strength of the anti-collision beam. Especially during a collision, it can better disperse and absorb the impact force, preventing the anti-collision beam from undergoing excessive deformation.

[0059] At the same time, the reinforcing type also provides a connection point for the tow hook sleeve 2, which can greatly improve the structural strength of the rear anti-collision beam 1; the towing load can reach 1.0 times the vehicle weight, solving the problem that the vehicle can be rescued without damage in special situations and expanding the usage scenarios.

[0060] In summary, the hollow structure and reasonable material distribution of the present invention help to reduce the weight of the rear anti-collision beam 1, thereby reducing the overall weight of the vehicle and improving the fuel economy and handling performance.

[0061] High energy absorption capacity: The combined design of the partition plate 101 and the reinforcing profile 12 can effectively disperse the collision energy, improve the anti-impact performance of the anti-collision beam, and better protect the rear structure of the vehicle and the safety of the occupants.

[0062] Structural stability: By fixing the reinforcing profile 12 through the riveting process, the stability of the internal structure of the anti-collision beam is ensured, and the overall structural strength is enhanced.

[0063] Functional integration: The integrated design of the towing hook sleeve 2 enables the rear bumper beam 1 to not only have the safety protection function but also meet the towing requirements of the vehicle, improving the practicality of the product.

[0064] Furthermore, in the present invention, a reinforcing profile 12 is respectively provided in each of the two monomer cavities 103; each reinforcing profile 12 is respectively attached to the partition plate 101; the vertical cross-section of the reinforcing profile 12 is in a "hui" character shape; the arrangement of the reinforcing profiles 12; a reinforcing profile 12 is respectively provided in each of the two monomer cavities 103: This means that in the internal cavity of the rear bumper beam 1, a reinforcing profile 12 is installed in each monomer cavity 103 separated by the partition plate 101; this arrangement can ensure that both cavities are structurally strengthened, thereby improving the impact resistance of the entire rear bumper beam 1.

[0065] Each reinforcing profile 12 is respectively attached to the partition plate 101: The reinforcing profile 12 is closely attached to the partition plate 101. This design can further enhance the stability of the partition plate 101, and at the same time enable the reinforcing profile 12 to better disperse the collision energy to the entire bumper beam structure; the attachment design can also reduce the loss of energy during transmission and improve the energy absorption efficiency.

[0066] At the same time, according to the requirement of the fitting arrangement, the installation and positioning of the reinforcing profile 12 can be realized, playing a good calibration role and avoiding the trouble of positioning the reinforcing profile 12 before subsequent riveting.

[0067] The vertical cross-section of the reinforcing profile 12 is in a "hui" character shape: This cross-sectional shape is similar to the Chinese character "hui", usually consisting of an outer frame and an inner frame, with a cavity formed in the middle.

[0068] This design has the following advantages: High strength: The structure of the "hui" character-shaped cross-section is similar to a strengthened frame, capable of providing high bending and torsional strength; Energy absorption: The cavity between the inner frame and the outer frame can deform during a collision, thereby absorbing more energy; This design is similar to some energy-absorbing structures, which can dissipate energy through deformation during a collision.

[0069] In addition, although the "hui" character-shaped cross-section provides high strength, the internal cavity design helps to reduce the material usage, thereby achieving lightweight.

[0070] The above design can enhance the structural strength of the front bumper assembly: By respectively arranging the reinforcing profiles 12 in the two monomer cavities 103 and making them attached to the partition plate 101, the structural strength of the entire rear bumper beam 1 has been significantly improved.

[0071] This design can effectively prevent the bumper beam from undergoing excessive deformation or damage during a collision.

[0072] Energy absorption optimization: The reinforced profile 12 with a "U"-shaped cross section can better absorb and disperse energy during a collision, reducing the impact of energy on the rear structure of the vehicle and the occupants.

[0073] Balance between lightness and strength: Although the reinforcing profile 12 increases the structural strength, its U-shaped cross-section design achieves lightness through the internal cavity, avoiding the increase in weight caused by the increase in material.

[0074] Furthermore, in the present invention, both ends of the rear anti-collision beam 1 are connected to a mounting end plate 4 via an energy absorption box 3; the main function of the energy absorption box 3 is to absorb and disperse energy during a collision, thereby reducing the impact of the collision on the vehicle structure and occupants.

[0075] The mounting end plate 4 is a component used to fix the rear anti-collision beam 1 and its energy absorption box 3 to the vehicle body; it is usually connected to the vehicle body structure by bolts or other fasteners.

[0076] At the same time, in the present invention, at least one reinforcement mechanism 5 is provided between each of the energy absorption boxes 3 and the rear anti-collision beam 1; the reinforcement mechanism 5 includes a reinforcement block 51; one end of the reinforcement block 51 is connected to the anti-collision beam body 11, and the other end is connected to the energy absorption box 3; the reinforcement block 51 and the anti-collision beam body 11 and the energy absorption box 3 are all arranged in an intersecting manner.

[0077] Reinforcement mechanism 5: At least one reinforcement mechanism 5 is provided between each energy absorption box 3 and the rear anti-collision beam 1; this design is used to enhance the connection strength between the rear anti-collision beam 1 and the energy absorption box 3 to ensure the stability of the structure during a collision.

[0078] The reinforcing mechanism 5 includes a reinforcing block 51 , one end of which is connected to the anti-collision beam body 11 , and the other end of which is connected to the energy absorption box 3 ; this design further improves the impact resistance of the entire structure by increasing the strength of the connection point.

[0079] The present invention requires that the reinforcing block 51 be arranged to intersect with the anti-collision beam body 11 and the energy absorption box 3; this intersecting arrangement can disperse stress and avoid stress concentration, thereby improving the overall strength and stability of the structure.

[0080] The present invention significantly improves the strength of the connection part by arranging the reinforcement block 51 between the energy absorption box 3 and the rear anti-collision beam 1, ensuring that the structure will not be easily damaged during the collision.

[0081] Optimizing energy absorption: The combined design of the energy absorbing box 3 and the reinforcement block 51 can better absorb and disperse the collision energy, reducing the impact of the energy on the rear structure of the vehicle and the occupants.

[0082] Improved stability: The intersecting reinforcement blocks 51 can effectively disperse stress and avoid stress concentration, thereby improving the stability of the entire structure.

[0083] Enhanced reliability: By increasing the strength and stability of the connection point, this design improves the reliability of the connection between the rear anti-collision beam 1 and the vehicle body, reducing the risk of structural loosening or damage due to collision.

[0084] By providing a reinforcing mechanism 5 between the energy absorption box 3 and the rear anti-collision beam 1, especially by adopting an intersecting arrangement of reinforcing blocks 51, this design not only significantly improves the connection strength between the rear anti-collision beam 1 and the energy absorption box 3, but also optimizes the energy absorption effect.

[0085] This structural design not only meets the safety performance requirements, but also improves the stability and reliability of the entire rear anti-collision beam 1 assembly.

[0086] Furthermore, in the present invention, each energy absorption box 3 is connected to the anti-collision beam body 11 on both sides through a reinforcement mechanism 5; each of the reinforcement blocks 51 includes a block body 511, and a lap connecting plate 512 is provided at both ends of the block body 511; each of the energy absorption box 3 is connected to the anti-collision beam body 11 on both sides through a reinforcement mechanism 5: this means that both sides of the energy absorption box 3 are connected to the anti-collision beam body 11 through the reinforcement mechanism 5 to form a stable triangular structure.

[0087] This design can ensure that the energy absorbing box 3 can effectively transfer energy to the anti-collision beam body 11 during a collision, while enhancing the stability of the entire structure.

[0088] Number and position of the reinforcing mechanisms 5: There is a reinforcing mechanism 5 on each side of each energy absorption box 3. This symmetrical arrangement can ensure uniform force and avoid structural failure due to excessive force on one side.

[0089] The reinforcement block 51 includes a block body 511 and overlapping connecting plates 512 : the reinforcement block 51 is a main component of the reinforcement mechanism 5 , and its structure includes a block body 511 and two overlapping connecting plates 512 .

[0090] Block 511: It is the main part of the reinforcement block 51 and plays a major supporting and connecting role.

[0091] Overlap connecting plate 512: An overlap connecting plate 512 is respectively provided at both ends of the block 511, which is used to connect the reinforcement block 51 with the anti-collision beam body 11 and the energy absorption box 3.

[0092] The design of the overlapping connecting plate 512 can increase the contact area of ​​the connection, and improve the firmness and reliability of the connection.

[0093] By providing a reinforcing mechanism 5 on each side of the energy absorption box 3 , it is ensured that the connection between the energy absorption box 3 and the anti-collision beam body 11 is more stable.

[0094] This symmetrical connection method can effectively disperse stress and avoid stress concentration.

[0095] The design of the reinforcement block 51 can ensure that the collision energy is efficiently transferred from the energy absorption box 3 to the anti-collision beam body 11, so as to better play the role of the energy absorption box 3 and reduce the impact of energy on the rear structure and occupants of the vehicle.

[0096] The combined design of the block 511 and the overlapping connecting plate 512 not only enhances the connection strength, but also improves the impact resistance of the entire structure.

[0097] The design of the overlapping connecting plate 512 makes the installation of the reinforcing block 51 more convenient, and also facilitates maintenance or replacement when necessary.

[0098] Furthermore, in the present invention, the vertical cross-section of the block 511 is trapezoidal; the block 511 is provided with a weight-reducing hole 513; the block 511 is provided with a fitting slope 514; in the present invention, the vertical cross-section of the shape of the block 511 is trapezoidal: the vertical cross-section of the block 511 is designed to be trapezoidal, and this shape has the following advantages; the trapezoidal structure has good compression and bending resistance in both the longitudinal and transverse directions, and can effectively withstand various stresses generated during collisions; the hypotenuse of the trapezoidal structure can better disperse stress and avoid stress concentration, thereby improving the overall strength and stability of the structure; the trapezoidal structure can be optimized according to the rear space of the vehicle to better adapt to different vehicle structures.

[0099] In the present invention, weight-reducing holes 513 are provided on the block 511: the weight-reducing holes 513 are designed to reduce the weight of the reinforcing block 51 without affecting its structural strength; by providing holes inside the block 511, unnecessary material usage is reduced, thereby achieving lightweighting.

[0100] A fitting slope 514 is provided on the block 511: the fitting slope 514 is designed to make the reinforcement block 51 better fit with the anti-collision beam body 11 and the energy absorption box 3; this design has the following advantages: improving the connection stability: the fitting slope 514 can increase the contact area between the reinforcement block 51 and the connecting component, thereby improving the firmness and stability of the connection; the fitting slope 514 can better disperse the stress, avoid stress concentration, and further improve the impact resistance of the structure; the design of the fitting slope 514 can make the reinforcement block 51 form a whole with the anti-collision beam body 11 and the energy absorption box 3, thereby enhancing the rigidity of the entire structure.

[0101] Furthermore, the towing hook sleeve 2 described in the present invention is arranged to penetrate the anti-collision beam body 11 and the reinforcement profile 12 at the same time; the design advantage of the towing hook sleeve 2 penetrating the anti-collision beam body 11 and the reinforcement profile 12; the towing hook sleeve 2 penetrating the anti-collision beam body 11 and the reinforcement profile 12 can effectively disperse the tension generated during towing, avoid stress concentration, and thus improve the structural strength of the entire rear anti-collision beam 1; this design method can ensure that the connection between the towing hook sleeve 2 and the anti-collision beam body 11 and the reinforcement profile 12 is more firm, reducing the damage to the vehicle structure caused by the towing operation.

[0102] The towing hook sleeve 2 can be fixed on the anti-collision beam body 11 by welding.

[0103] At the same time, in order to achieve a good avoidance effect, the present invention requires that an avoidance arc groove be provided on the reinforcing profile 12; at the same time, the towing hook sleeve 2 is required to be connected to two reinforcing profiles 12 at the same time. This arrangement allows the reinforcing profile 12 to be hung on the towing hook sleeve 2.

[0104] The shape and size of the towing hook sleeve 2 need to be optimized according to the specific structure of the vehicle to ensure its fit with the anti-collision beam body 11 and the reinforcement profile 12 .

[0105] Furthermore, in the present invention, a ribbed structure is provided on the mounting end plate 4, and the ribbed structure includes two end plate reinforcement ribs relatively spaced apart from each other on the mounting end plate 4; an assembly groove is formed between the two end plate reinforcement ribs; the energy absorption box 3 is inserted into the assembly groove; in the present invention, the end plate reinforcement rib is a part of the ribbed structure, and its main function is to enhance the local strength and rigidity of the mounting end plate 4.

[0106] By arranging two relatively spaced reinforcing ribs on the mounting end plate 4, stress can be effectively dispersed and stress concentration can be avoided, thereby improving the structural stability of the entire end plate.

[0107] The assembly groove is a slot formed between the end plate reinforcement ribs and is used to accommodate and fix other components.

[0108] In this design, the assembly groove is used to insert the energy absorption box 3 to ensure a stable connection between the energy absorption box 3 and the mounting end plate 4; by inserting the energy absorption box 3 into the assembly groove, it can be ensured that it can function stably during a collision while reducing damage to the vehicle body structure.

[0109] Based on the above design, the design of the end plate reinforcement ribs and assembly grooves can effectively enhance the structural strength of the installation end plate 4, ensuring that the energy absorption box 3 will not loosen or fail during a collision; by reasonably arranging the reinforcement ribs and grooves, the stress can be effectively dispersed and stress concentration can be avoided, thereby improving the impact resistance of the entire structure; the design of the assembly grooves can improve the assembly accuracy of the energy absorption box 3 and ensure its close fit with the installation end plate 4.

[0110] By providing a ribbed structure and an assembly groove on the mounting end plate 4 and inserting the energy absorbing box 3 into the groove, not only the stability and impact resistance of the structure are enhanced, but also the assembly accuracy and reliability are improved.

[0111] Furthermore, in the present invention, the energy absorption box 3 is provided with an overlapping notch; the vertical section of the energy absorption box 3 is L-shaped; the rear anti-collision beam 1 is overlapped on the overlapping notch of the energy absorption box 3; the overlapping notch design of the energy absorption box 3 is used to achieve an overlapping connection between the energy absorption box 3 and the rear anti-collision beam 1.

[0112] Through the above design, the overlapping notch can ensure a more stable connection between the rear anti-collision beam 1 and the energy absorption box 3, so that energy can be better transmitted and dispersed during a collision.

[0113] Through the overlapping notches, the energy absorption box 3 can more effectively absorb and disperse the impact force during a collision, thereby reducing damage to the vehicle body structure.

[0114] The L-shaped cross-section design of the energy absorption box 3 can enhance the longitudinal and lateral strength of the energy absorption box 3, so that it can better withstand the impact force during a collision; the L-shaped cross-section design can better adapt to the structural layout of the rear of the vehicle and ensure the coordination between the energy absorption box 3 and other parts of the vehicle body.

[0115] The overlapping design of the rear anti-collision beam 1 and the energy absorption box 3; the rear anti-collision beam 1 is overlapped on the overlapping notch of the energy absorption box 3. Through the overlapping design, the rear anti-collision beam 1 and the energy absorption box 3 form a whole, thereby enhancing the stability of the entire rear structure; the overlapping design can ensure that the collision energy is efficiently transferred from the rear anti-collision beam 1 to the energy absorption box 3, thereby better exerting the role of the energy absorption box 3; this overlapping design can effectively reduce the direct impact of the collision on the vehicle body structure and protect the rear structure of the vehicle.

[0116] An assembly method of the bumper assembly, the assembly method comprising the following steps:

[0117] Step 1: First, assemble the anti-collision beam body 11 and the reinforcement profile 12 to form the rear anti-collision beam 1;

[0118] Step 2: After step 1 is completed, plug the towing hook sleeve 2 into the rear anti-collision beam 1 in step 1;

[0119] Step 3: After step 2 is completed, connect the energy absorption box 3 to the rear anti-collision beam 1;

[0120] Step 4: Determine the number of reinforcing mechanisms 5 between the rear anti-collision beam 1 and the energy absorption box 3, and then install the corresponding reinforcing mechanisms 5 at corresponding positions between the rear anti-collision beam 1 and the energy absorption box 3 to form a semi-finished bumper;

[0121] Step 5: After step 4 is completed, the semi-finished bumper assembled in step 4 is connected to the corresponding mounting end plate 4;

[0122] Step 6: After completing step 5, the assembly of a bumper assembly is completed. If you need to repeat the assembly, just repeat steps 1-5.

[0123] The present invention facilitates the assembly of the bumper assembly through the above design.

[0124] Step 1: Assembling the anti-collision beam body 11 and the reinforcing profile 12. The purpose is to assemble the anti-collision beam body 11 and the reinforcing profile 12.

[0125] By fixing the reinforcing profile 12 inside the anti-collision beam body 11 , the overall structural strength of the anti-collision beam is enhanced.

[0126] The reinforcement profile 12 is usually fixed in the inner cavity of the anti-collision beam body 11 by riveting, welding or other mechanical connection methods.

[0127] It is the basic step of the entire assembly process, ensuring that the anti-collision beam can withstand sufficient impact force in subsequent steps.

[0128] Step 2: Installation of tow hook sleeve 2

[0129] After completing the assembly of the anti-collision beam body 11 and the reinforcing profile 12, the towing hook sleeve 2 is plugged into the rear anti-collision beam 1; first assembling the anti-collision beam body 11 and the reinforcing profile 12, and then assembling the towing hook sleeve 2, can avoid the existence of the towing hook sleeve 2 affecting the plug-in installation of the reinforcing profile 12 on the anti-collision beam body 11.

[0130] The towing hook sleeve 2 is used to install the towing hook, so as to facilitate the vehicle to tow when necessary.

[0131] Installing it on the rear anti-collision beam 1 can ensure that the pulling force during towing can be evenly transmitted to the entire anti-collision beam structure.

[0132] Correct installation of the towing hook sleeve 2 is crucial to the towing function of the vehicle and can also prevent damage to the anti-collision beam structure caused by the towing operation.

[0133] Step 3: Connecting the energy absorption box 3 ; connecting the energy absorption box 3 to the rear anti-collision beam 1 .

[0134] The main function of the energy absorption box 3 is to absorb and disperse energy during a collision, thereby reducing the impact on the rear structure of the vehicle and the occupants.

[0135] By connecting the energy absorbing box 3 to the anti-collision beam, it can be ensured that it can play an effective role in the event of a collision.

[0136] The correct connection of the energy absorption box 3 is the key to the bumper assembly being able to absorb energy effectively, and is crucial to improving the safety of the vehicle.

[0137] Step 4: Installation of the reinforcing mechanism 5; determine the number of reinforcing mechanisms 5 that need to be installed between the rear anti-collision beam 1 and the energy absorption box 3, and install these reinforcing mechanisms 5 at corresponding positions.

[0138] The reinforcing mechanism 5 (such as the reinforcing block 51 ) is used to further enhance the connection strength between the anti-collision beam and the energy absorption box 3 , thereby ensuring the stability of the structure during a collision.

[0139] The reinforcement block 51 is usually fixed between the anti-collision beam and the energy absorption box 3 by welding.

[0140] The installation of the reinforcement mechanism 5 can effectively disperse stress and avoid stress concentration, thereby improving the impact resistance of the entire bumper assembly.

[0141] Step 5: Connecting the semi-finished bumper to the mounting end plate 4 ; connect the semi-finished bumper assembled in step 4 to the corresponding mounting end plate 4 .

[0142] The mounting end plate 4 is used to fix the bumper assembly to the body structure of the vehicle; by connecting the semi-finished bumper to the mounting end plate 4, the stable installation of the bumper assembly on the vehicle can be ensured.

[0143] The correct connection of the mounting end plate 4 is the key to the secure installation of the bumper assembly on the vehicle, and is crucial to the stability and reliability of the entire bumper system.

[0144] Step 6: Complete the assembly; after completing the above steps, a complete bumper assembly is assembled; if mass production is required, steps 1-5 can be repeated.

[0145] Ensure that each bumper assembly is assembled according to the same process and standards to ensure consistency in product quality.

[0146] Standardized assembly processes can improve production efficiency, reduce human errors, and ensure that each product meets design requirements.

[0147] A rear guard assembly includes a rear guard body 8 and the bumper assembly; the bumper assembly also includes a mounting mechanism arranged on a rear anti-collision beam 1, and the rear guard body 8 is overlapped on the mounting mechanism in the bumper assembly; the rear guard assembly is a rear protection structure of an automobile integrating a rear bumper body and the bumper assembly, and is designed to improve the safety and structural stability of the vehicle; the rear guard body 8 is the external structural part of the rear guard assembly, usually made of plastic or other lightweight materials, and mainly plays an aesthetic and certain protective role; the bumper assembly is the core structural part of the rear guard assembly, and is mainly responsible for collision protection at the rear of the vehicle, and includes key components such as the rear anti-collision beam 1, the energy absorption box 3, and the reinforcement profile 12.

[0148] The bumper assembly further includes a mounting mechanism disposed on the rear anti-collision beam 1 , and the mounting mechanism is composed of a plurality of support frames 6 spaced apart and distributed on the anti-collision beam body 11 .

[0149] The mounting mechanism is a part of the bumper assembly, which is arranged on the rear anti-collision beam 1 and is used to support the rear bumper body 8. The mounting mechanism includes a plurality of support frames 6 which are spaced apart and distributed on the anti-collision beam body 11.

[0150] In the present invention, the support frame 6 includes a frame body, which includes an upper frame plate and a lower frame plate. Both ends of the upper frame plate and the lower frame plate are connected by connecting frame plates respectively. The frame body is an annular structure, and a frame reinforcement plate is provided in the frame body.

[0151] The erection mechanism includes a plurality of support frames 6 spaced apart on the anti-collision beam body 11; each support frame 6 is composed of an upper frame plate, a lower frame plate and a connecting frame plate to form an annular structure, and a frame reinforcement plate is also provided inside to enhance its structural strength.

[0152] The mounting mechanism provides stable support for the rear protector body 8, ensuring the stability and accuracy of the position of the rear protector body 8 during installation. Even during subsequent use, the stability of the position of the rear protector body 8 is maintained and it will not loosen due to bumps or collisions.

[0153] During a collision, the mounting mechanism can work in conjunction with the rear anti-collision beam 1 to further disperse and absorb the collision energy and reduce the impact on the rear structure of the vehicle and the occupants.

[0154] In the present invention, the rear guard body 8 is connected to the mounting mechanism; the rear guard body 8 is installed on the mounting mechanism in the bumper assembly in an overlapping manner; the overlapping design makes the installation process of the rear guard body 8 simpler and faster, and is convenient for production assembly and subsequent maintenance; through close cooperation with the mounting mechanism, the rear guard body 8 can obtain stable support, ensuring its reliability under various working conditions.

[0155] In addition, in the present invention, a sponge pad 7 is provided between the rear protection body 8 and the support frame 6 of the erection mechanism, and the sponge pad 7 plays a good supporting and isolating role; it plays a good isolating and protecting role.

[0156] specific:

[0157] The present invention discloses a bumper assembly; the purpose is to meet the requirement that the vehicle can withstand towing far exceeding the national standard, up to 25° up and down, 25° left and right, and the towing load can reach 1.0 times the vehicle weight, so as to solve the problem that the car can be rescued without damaging the vehicle in special circumstances and expand the use scenarios.

[0158] The rear anti-collision beam body is made of high-strength T6 6082 multi-cavity cross-section aluminum profile, two reinforcing profiles 12 are added to the rear anti-collision beam body near the tow hook sleeve 2 (the rear anti-collision beam 1 body and the reinforcing profile 12 are connected by blind rivets 1-1), and two diagonal brace reinforcing mechanisms 5 are added between the rear anti-collision beam 1 body and the reinforcing profile 12 (the energy absorption box 3 and the diagonal brace reinforcing mechanism 5 are connected by MIG welding) to improve the connection strength between the rear anti-collision beam 1 body and the energy absorption box 3, and two end plate reinforcement ribs are added at the connection between the energy absorption box 3 and the installation end plate 4 (the end plate and the added end plate reinforcement ribs are connected by MIG welding) to improve the connection strength between the energy absorption box 3 and the end plate. Specific embodiment:

[0160] A rear anti-collision beam assembly for a vehicle body includes a rear anti-collision beam body, two reinforcing profiles 12, and four blind rivets 1-1 connecting the rear anti-collision beam body 1 and the reinforcing profile 12; two diagonal brace reinforcing mechanisms 5, an energy absorption box 3 and the diagonal brace reinforcing mechanisms 5 are connected by MIG welding; two end plate reinforcing ribs, the end plates and the end plate reinforcing ribs are connected by MIG welding; a tow hook sleeve 2 and the rear anti-collision beam body 1 are connected by MIG welding.

[0161] The reinforcing profile 12 is a U-shaped profile, connected to the U-shaped rear anti-collision beam 1 body through four blind rivets 1-1. Figure 2 , Figure 3 and Figure 6 As shown, this technology can increase the shear resistance of the rear anti-collision beam 1 body, but the weight cost is increased very little.

[0162] The rear energy absorption box 3 and the rear anti-collision beam 1 body are provided with two diagonal brace reinforcement mechanisms 5, which are connected to the rear anti-collision beam 1 body by MIG welding. Figure 4 and Figure 5 shown.

[0163] The end plate is added with two end plate reinforcement ribs, which are connected to the energy absorption box by 3MIG welding to improve the connection strength. Figure 1 and Figure 5 and Figure 6 shown.

[0164] The bumper assembly disclosed in the present invention has a small increase in overall weight and cost, and significantly improves strength, can meet the requirement that a vehicle can be rescued in special circumstances without damaging the vehicle, and reduces the risk of use.

[0165] like Figure 1 , Figure 2 and Figure 3 As shown, the rear anti-collision beam 1 disclosed in the present invention is in the shape of a Japanese character, and a reinforcing profile 12 is added to the inner side of the towing hook sleeve 2, which is connected to the rear anti-collision beam 1 in the shape of a Japanese character through a blind rivet 1-1, thereby improving the shear resistance of the rear towing hook sleeve accessory during towing.

[0166] like Figure 2 , Figure 4 and Figure 5 As shown, the energy absorption box 3 and the reinforcing mechanism 5 of the two diagonal braces are connected to the rear anti-collision beam 1 body by MIG welding, which increases the connection area between the energy absorption box 3 and the rear anti-collision beam 1 body, reduces the shear force at a single connection, and improves the overall connection strength.

[0167] like Figure 1 , Figure 5 and Figure 6 As shown, two end plate reinforcing ribs are added to the end plate, which is connected to the energy absorption box 3 by MIG welding, thereby improving the connection strength between the end plate and the energy absorption box 3.

[0168] The strength of the rear anti-collision beam 1 body, the rear anti-collision beam 1 body and the energy absorption box 3, and the energy absorption box 3 and the end plate are all improved, which can meet the towing load of the rear tow hook up to 1.0 times the vehicle weight, and the towing angle reaches more than 25° up and down, and 25° left and right.

[0169] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. A bumper assembly, characterized in that: It includes a rear anti-collision beam; the rear anti-collision beam is provided with a towing hook sleeve; The rear anti-collision beam comprises an anti-collision beam body, and the anti-collision beam body comprises an anti-collision beam main body; the anti-collision beam main body is hollow inside to form an internal cavity; a partition plate is arranged inside the internal cavity; the partition plate divides the internal cavity into two single cavities; the vertical section of the anti-collision beam main body is in a Japanese character shape; A reinforcing profile is arranged in the internal cavity; the reinforcing profile is fixed in the anti-collision beam body by a riveting process.

2. A bumper assembly according to claim 1, characterized in that: A reinforcing profile is respectively arranged in each of the two monomer cavities; each of the reinforcing profiles is respectively attached to the partition plate; and the vertical cross-section of the reinforcing profile is in the shape of a Chinese character U.

3. The bumper assembly according to claim 1, characterized in that: Both ends of the rear anti-collision beam are connected to a mounting end plate through an energy absorption box; At least one reinforcement mechanism is provided between each energy absorption box and the rear anti-collision beam; the reinforcement mechanism comprises a reinforcement block; one end of the reinforcement block is connected to the anti-collision beam body, and the other end is connected to the energy absorption box; the reinforcement block, the anti-collision beam body and the energy absorption box are all arranged in an intersecting manner.

4. A bumper assembly according to claim 3, characterized in that: Both sides of each energy absorption box are connected to the anti-collision beam body through a reinforcement mechanism; each reinforcement block includes a block body, and a lap connection plate is respectively provided at both ends of the block body.

5. The bumper assembly according to claim 4, characterized in that: The vertical cross section of the block is trapezoidal; a weight-reducing hole is provided on the block; and a fitting inclined surface is provided on the block.

6. The bumper assembly according to claim 1, characterized in that: The towing hook sleeve penetrates the anti-collision beam body and the reinforcement profile arrangement at the same time.

7. The bumper assembly according to claim 3, characterized in that: The mounting end plate is provided with a rib structure, and the rib structure includes two end plate reinforcing ribs arranged relatively spaced apart on the mounting end plate; an assembly groove is formed between the two end plate reinforcing ribs; and the energy absorption box is inserted into the assembly groove.

8. The bumper assembly according to claim 3, characterized in that: The energy absorption box is provided with an overlapping notch; the vertical cross section of the energy absorption box is L-shaped; the rear anti-collision beam is overlapped on the overlapping notch of the energy absorption box.

9. An assembly method of the bumper assembly according to any one of claims 1 to 8, characterized in that: The assembly method comprises the following steps: Step 1: First assemble the anti-collision beam body and the reinforcement profile to form the rear anti-collision beam; Step 2: After completing step 1, plug the towing hook sleeve into the rear anti-collision beam in step 1; Step 3: After completing step 2, connect the energy absorption box to the rear anti-collision beam; Step 4: Determine the number of reinforcement mechanisms between the rear anti-collision beam and the energy absorption box, and then install the corresponding reinforcement mechanisms at corresponding positions between the rear anti-collision beam and the energy absorption box to form a semi-finished bumper; Step 5: After step 4 is completed, the semi-finished bumper assembled in step 4 is connected to the corresponding mounting end plate; Step 6: After completing step 5, the assembly of a bumper assembly is completed. If you need to repeat the assembly, repeat steps 1-5.

10. A rear guard assembly, characterized in that: It comprises a rear bumper body and a bumper assembly as claimed in any one of claims 1 to 8; The bumper assembly further includes a mounting mechanism disposed on the rear anti-collision beam, the mounting mechanism including a plurality of support frames spaced apart and distributed on the anti-collision beam body; The support frame includes a frame body, the frame body includes an upper frame plate and a lower frame plate, the upper frame plate and the lower frame plate are connected at both ends by connecting frame plates, the frame body is annular, and a frame reinforcement plate is provided in the frame body; The rear bumper body is overlapped on a mounting mechanism in the bumper assembly.

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