Bumper support structure

Abstract

The present invention relates to the technical field of automobile bumpers, and specifically to a bumper support structure, comprising: a plastic frame and a grille provided inside the plastic frame; a mounting plate fixedly mounted on one side of the plastic frame and connected to the vehicle body, an energy-absorbing member provided inside the mounting plate, the energy-absorbing member including an air cavity; a main beam fixedly mounted on the top of the mounting plate, an upper bumper and a lower bumper respectively mounted on the upper and lower portions of the main beam, a counteracting portion provided on one side of the upper and lower bumpers, and support members provided at the connection points between the ends of the upper and lower bumpers and the side of the mounting plate. When the vehicle body is hit by a collision, the support members at both ends of the upper and lower bumpers increase the strength of the bumpers, while the counteracting portion drives the upper and lower bumpers to withstand a relatively small collision with the vehicle body from the front. If the collision is too severe, the counteracting portion affects the energy-absorbing member inside the mounting plate, thereby adapting to the collision range and collision force caused by the truck bumpers.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile bumpers, in particular to a bumper support structure. Background Art

[0002] The bumper is a safety device that absorbs and reduces external impact and protects the front and rear parts of the vehicle body. The bumper of a large truck is mainly composed of three parts: outer panels, buffer materials and crossbeams. The outer panels and buffer materials are made of plastic, and the crossbeams are stamped into U-shaped grooves with cold-rolled thin plates. The outer panels and buffer materials are attached to the crossbeams. During the use of the truck bumper.

[0003] The bumper in the prior art 201510571201.1 includes a buffer spring, an anti-collision steel frame, an air cavity, an outer cover plate, a support plate, a bracket one, a bracket two, a mounting plate one, a mounting plate two, and a connecting frame. The first buffer device, the second buffer device and the third buffer device are composed of these structures. The first buffer and the third buffer are energy-absorbing buffers, and the two complement each other. Under normal circumstances, the first buffer and the third buffer can both play a role.

[0004] The above structure uses multiple buffers to improve the buffering capacity of the bumper. However, in the application of large truck bumpers, due to the large size of trucks, the collision range caused by truck bumpers is wider, and the collision force caused by trucks is also greater than that of ordinary cars, resulting in the bumper being unable to adapt to the buffering. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a bumper support structure to solve the problem that the buffering capacity of the bumper cannot adapt to the collision range and collision force caused by trucks.

[0006] To achieve the above objectives, the present invention provides a bumper support structure, comprising: a plastic frame and a grille provided within the plastic frame; a mounting plate frame connected to the vehicle body is fixedly mounted on one side of the plastic frame, the mounting plate frame being provided in at least two groups, and an energy absorbing member is provided within the mounting plate frame, the energy absorbing member including an air cavity; a main beam is fixedly mounted on the top of the mounting plate frame, an upper bumper and a lower bumper are respectively mounted on the upper and lower portions of the main beam; a counteracting portion is provided on one side of the upper and lower bumpers; and support members are provided at the connection between the ends of the upper and lower bumpers and one side of the mounting plate frame;

[0007] Among them, when the front or side of the vehicle body is hit, the support parts at both ends of the upper and lower bumpers are connected to the energy-absorbing parts to improve the strength of both sides of the bumper, and the front side drives the upper and lower bumpers to withstand a smaller collision of the vehicle body through the offset part. If the collision is too severe, the offset part further affects the energy-absorbing parts inside the mounting plate frame, and then multiple energy absorption is performed through the energy-absorbing parts and the offset part.

[0008] Preferably, the energy absorbing part also includes an anti-collision plate installed at the end of the air cavity, the anti-collision plate is installed between two sets of mounting plate frames, the upper and lower parts of the air cavity are fixedly installed with a fixed frame, the fixed frame is fixedly installed with the upper and lower parts of the mounting plate frames, and a protrusion is fixedly installed on one side of the fixed frame near the front end of the air cavity, and a strong magnet is provided inside the protrusion.

[0009] Preferably, the raised portion and the grille are arranged in front and back correspondence, and the anti-collision plate is installed between the mounting plate frame and the fixed frame as an inner lining.

[0010] Preferably, the offsetting part includes a buffer spring installed inside the fixed frame, one end of the buffer spring is fixedly installed with a connecting frame, one side of the upper bumper and the lower bumper is fixedly connected to the top of the connecting frame, one side of the fixed frame is fixedly connected with an intercepting plate, and multiple groups of airbag components are fixedly installed on the outside of the main beam, and the airbag components are close to the side of the intercepting plate.

[0011] Preferably, the intercepting plate is provided with openings for buffer springs to pass through, and the buffer springs are provided in at least four groups and distributed in an array.

[0012] Preferably, the connecting frame is an iron component, and a sliding hole for buffering the connecting frame is provided inside the fixing frame.

[0013] Preferably, the support member includes a reinforcing rod installed at both ends of the upper bumper and the lower bumper, an arc frame is installed at the bottom end of the reinforcing rod, the end of the arc frame is installed on one side of the mounting plate frame, a middle connecting rod is fixedly installed between adjacent arc frames, a bracket is fixedly connected to one side of the main beam at the center of the middle connecting rod, and a force rod is fixedly connected between the middle connecting rod and the mounting plate frame.

[0014] Preferably, the middle connecting rod is arranged in a mirror-symmetrical manner with respect to the center of the main beam, the middle connecting rod is installed at the center of the arc-shaped frame, and an acute angle is formed between the bracket and the stress-bearing rod.

[0015] Preferably, the upper bumper, the lower bumper and the plastic frame are arranged in parallel up and down, and the upper bumper and the lower bumper are both made of plastic material.

[0016] The beneficial effects of the present invention are as follows: when the front or side of the vehicle body is hit, it first contacts the plastic frame or the upper bumper or the lower bumper; when the front or side of the vehicle body is hit, if the collision range is small and contacts the front of the plastic frame, it directly contacts the energy-absorbing member, and the collision energy is absorbed by the energy-absorbing member; if the collision range is the plastic frame and the sides of the upper bumper and the lower bumper, the support member is connected to the energy-absorbing member to increase the strength of both sides of the bumper for buffering.

[0017] If the collision is too small, when the upper and lower bumpers are in contact, the front side drives the upper and lower bumpers to withstand a smaller collision with the vehicle body through the offset part. If the collision is too large, the offset part further affects the energy-absorbing parts inside the mounting plate frame, and then forms a stepped buffer through the energy-absorbing parts and the offset part to perform multiple energy absorption, thereby adapting to the collision range and collision force caused by the truck bumpers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the rear-view stereoscopic structure of the present invention as a whole;

[0021] Figure 3 It is a rear view structural diagram of the entire present invention;

[0022] Figure 4 For the present invention Figure 3 Schematic diagram of the side section structure at AA in the middle.

[0023] The markings in the figure are: 1. Plastic frame; 2. Grille; 3. Main beam; 31. Buffer spring; 32. Connecting frame; 33. Interceptor plate; 34. Airbag component; 4. Upper bumper; 5. Lower bumper; 51. Reinforcement rod; 52. Arc frame; 53. Middle connecting rod; 54. Bracket; 55. Force rod; 6. Mounting plate frame; 61. Anti-collision plate; 62. Air cavity; 63. Fixed frame; 64. Protrusion; 65. Strong magnet. DETAILED DESCRIPTION

[0024] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0025] The first aspect of the present invention is as follows Figures 1-4As shown, the bumper support structure includes: a plastic frame 1 and a grille 2 opened inside the plastic frame 1; a mounting plate 6 connected to the vehicle body is fixedly installed on one side of the plastic frame 1, and there are at least two sets of mounting plates 6. The mounting plates 6 are provided with energy absorbing members inside. The energy absorbing members include air cavities 62. A main beam 3 is fixedly installed on the top of the mounting plate 6. An upper bumper 4 and a lower bumper 5 are respectively installed on the upper and lower parts of the main beam 3. An offset portion is provided on one side of the upper bumper 4 and the lower bumper 5. Support members are provided at the connection between the ends of the upper bumper 4 and the lower bumper 5 and one side of the mounting plate 6;

[0026] Among them, when the front or side of the vehicle body is hit, the support parts at both ends of the upper bumper 4 and the lower bumper 5 are connected to the energy-absorbing parts to improve the strength of both sides of the bumper, and the front side drives the upper bumper 4 and the lower bumper 5 to withstand a smaller collision with the vehicle body through the offset part. If the collision is too severe, the offset part further affects the energy-absorbing parts inside the mounting plate frame 6, and then multiple energy absorption is performed through the energy-absorbing parts and the offset part.

[0027] In this embodiment, by installing the plastic frame 1 on the vehicle body, when the vehicle body is hit from the front or side, the plastic frame 1 or the upper bumper 4 or the lower bumper 5 is first contacted;

[0028] When the collision range is small and contacts the front of the plastic frame 1, it directly contacts the energy absorbing member, and the collision energy is absorbed by the energy absorbing member;

[0029] If the collision range is the plastic frame 1 and the sides of the upper bumper 4 and the lower bumper 5, the support members are connected to the energy absorbing members to increase the strength of both sides of the bumper for buffering;

[0030] If the collision is too small, when the upper bumper 4 and the lower bumper 5 are in contact, the front side drives the upper bumper 4 and the lower bumper 5 through the offset part to withstand the smaller collision of the vehicle body;

[0031] If the collision is too severe, the offset portion further affects the energy absorbing member inside the mounting plate frame 6, thereby forming a stepped buffer with the energy absorbing member and the offset portion to absorb multiple energies, thereby adapting to the collision range and collision force caused by the truck bumpers.

[0032] As an implementation method, Figure 1 、 Figure 2 and Figure 4 As shown, the bumper support structure and the energy absorbing member also include an anti-collision plate 61 installed at the end of the air cavity 62. The anti-collision plate 61 is installed between two sets of mounting plate frames 6. The upper and lower parts of the air cavity 62 are fixedly installed with a fixing frame 63. The fixing frame 63 is fixedly installed with the upper and lower parts of the mounting plate frames 6. A protrusion 64 is fixedly installed on one side of the fixing frame 63 near the front end of the air cavity 62, and a strong magnet 65 is provided inside the protrusion 64.

[0033] Preferably, the raised portion 64 and the grille 2 are arranged in front and back correspondence, and the anti-collision plate 61 is installed between the mounting plate frame 6 and the fixed frame 63 as an inner lining.

[0034] In this embodiment, when the collision range is small and directly contacts the front of the plastic frame 1, it contacts the protrusion 64 after colliding with the grille 2. When the collision occurs, the air cavity 62 of the protrusion 64 is compressed, thereby affecting the deformation mode of its outer parts, thereby improving the energy absorption effect.

[0035] As an implementation method, Figure 1 、 Figure 2 and Figure 4 As shown, the bumper support structure, the offsetting part includes a buffer spring 31 installed inside the fixed frame 63, one end of the buffer spring 31 is fixedly installed with a connecting frame 32, one side of the upper bumper 4 and the lower bumper 5 is fixedly connected to the top of the connecting frame 32, one side of the fixed frame 63 is fixedly connected to the interception plate 33, and multiple groups of airbag components 34 are fixedly installed on the outside of the main beam 3, and the airbag components 34 are close to the side of the interception plate 33. The upper bumper 4, the lower bumper 5 and the plastic frame 1 are arranged parallel to each other, and the upper bumper 4 and the lower bumper 5 are both plastic components.

[0036] Preferably, the intercepting plate 33 is provided with openings for the buffer springs 31 to pass through, and there are at least four groups of buffer springs 31 distributed in an array.

[0037] Preferably, the connecting frame 32 is an iron component, and a sliding hole for buffering the connecting frame 32 is opened inside the fixing frame 63.

[0038] In this embodiment, after a collision occurs, if the collision is too minor and contacts the upper bumper 4 and the lower bumper 5, the main beam 3 on the upper and lower bumpers 4 and 5 sides will first be used to mitigate the impact force. Then, under the action of the impact force, the airbag 34 is squeezed between the upper and lower bumpers 4 and 5 and the intercepting plate 33 on the side of the fixed frame 63, and the airbag 34 and the main beam 3 are used to withstand the minor collision of the vehicle body.

[0039] If the collision is too severe, the airbag component 34 will be squeezed and deformed, and the intercepting plate 33 and the fixed frame 63 will be impacted, which will affect the energy-absorbing component inside the mounting plate frame 6, contact the protrusion 64, and compress the air cavity 62 through the protrusion 64 to form a stepped buffer, thereby affecting the deformation mode of its external components.

[0040] As an implementation method, Figure 1 、 Figure 2 、 Figure 3As shown, the bumper support structure includes a reinforcing rod 51 installed at both ends of the upper bumper 4 and the lower bumper 5. An arc frame 52 is installed at the bottom end of the reinforcing rod 51. The end of the arc frame 52 is installed on one side of the mounting plate frame 6. A middle connecting rod 53 is fixedly installed between adjacent arc frames 52. A bracket 54 is fixedly connected to one side of the main beam 3 at the center of the middle connecting rod 53. A force-bearing rod 55 is fixedly connected between the middle connecting rod 53 and the mounting plate frame 6.

[0041] Preferably, the middle connecting rod 53 is arranged in a mirror-symmetrical manner with respect to the center of the main beam 3 , and the middle connecting rod 53 is installed at the center of the arc frame 52 , and an acute angle is formed between the bracket 54 and the force-bearing rod 55 .

[0042] In this embodiment, when a collision occurs, the collision range is the plastic frame 1 and the sides of the upper bumper 4 and the lower bumper 5, and the bow structure composed of the reinforcing rods 51 and the arc frames 52 in the upper bumper 4 and the lower bumper 5 is used for buffering. At the same time, the middle connecting rod 53 between the arc frames 52 is connected to the main beam 3 and the mounting plate frame 6 through the bracket 54 and the force-bearing rod 55, and the collision impact is transmitted to the main beam 3 and the mounting plate frame 6, and the air cavity 62 set between the mounting plate frames 6 bears the impact, thereby improving the strength of both sides of the bumper.

[0043] Working principle: When in use, by installing the plastic frame 1 on the vehicle body, when the front or side of the vehicle body is hit, it first contacts the plastic frame 1 or the upper bumper 4 or the lower bumper 5;

[0044] When the collision range is small and contacts the front of the plastic frame 1, it contacts the protrusion 64 after colliding with the grille 2. At the same time, the strong magnet 65 inside the protrusion 64 and the magnetic force between the connecting frame 32 in the fixed frame 63 cause the connecting frame 32 to act as a preliminary buffer. Then, the air cavity 62 of the protrusion 64 is compressed, which affects the deformation of the outer parts, thereby improving the energy absorption effect.

[0045] If the collision range is the side of the plastic frame 1 and the upper bumper 4 and the lower bumper 5, after the collision occurs, the collision range is the side of the plastic frame 1 and the upper bumper 4 and the lower bumper 5, and the bow structure formed by the reinforcing rod 51 and the arc frame 52 in the upper bumper 4 and the lower bumper 5 is used for buffering. At the same time, the middle connecting rod 53 between the arc frames 52 is connected to the main beam 3 and the mounting plate frame 6 through the bracket 54 and the force-bearing rod 55, and the collision impact is transmitted to the main beam 3 and the mounting plate frame 6, and the air cavity 62 provided between the mounting plate frame 6 is used to bear the impact, thereby improving the strength of both sides of the bumper;

[0046] If the collision is too small and contacts the upper bumper 4 and the lower bumper 5, the main beam 3 on the upper bumper 4 and the lower bumper 5 side will first reduce the impact force. Then, under the action of the impact force, the airbag 34 will be squeezed between the upper bumper 4 and the lower bumper 5 and the intercepting plate 33 on the side of the fixed frame 63. The airbag 34 and the main beam 3 will withstand the relatively small collision of the vehicle body.

[0047] If the collision is too severe, the airbag component 34 will be squeezed and deformed, and the intercepting plate 33 and the fixed frame 63 will be impacted, which will affect the energy-absorbing component inside the mounting plate frame 6 and contact the protrusion 64. The protrusion 64 compresses the air cavity 62 to form a stepped buffer, which in turn affects the deformation mode of the external components. The energy-absorbing component and the offsetting part form a stepped buffer to perform multiple energy absorption, thereby adapting to the collision range and collision force caused by the truck bumpers.

[0048] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0049] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. Bumper support structure, including: A plastic frame (1) and a grille (2) provided inside the plastic frame (1); characterized in that a mounting plate frame (6) connected to a vehicle body is fixedly installed on one side of the plastic frame (1), the mounting plate frames (6) are provided in at least two groups, and an energy absorbing member is provided inside the mounting plate frames (6), a main beam (3) is fixedly installed on the top of the mounting plate frames (6), an upper bumper (4) and a lower bumper (5) are respectively installed on the upper and lower parts of the main beam (3), an offset portion is provided on one side of the upper bumper (4) and the lower bumper (5), and a support member is provided at the connection between the two ends of the upper bumper (4) and the lower bumper (5) and one side of the mounting plate frames (6); When the front or side of the vehicle body is hit, the support members at both ends of the upper bumper (4) and the lower bumper (5) are connected to the energy absorbing member to improve the strength of both sides of the bumper, and the front side drives the upper bumper (4) and the lower bumper (5) to withstand a relatively small collision of the vehicle body through the offset part. If the collision is too severe, the offset part further affects the energy absorbing member inside the mounting plate frame (6), and then multiple energy absorption is performed through the energy absorbing member and the offset part. The energy absorbing member includes an air cavity (62), an anti-collision plate (61) installed at the end of the air cavity (62), the anti-collision plate (61) is installed between two sets of mounting plate frames (6), the upper and lower parts of the air cavity (62) are fixedly installed with a fixing frame (63), the fixing frame (63) is fixedly installed with the upper and lower parts of the mounting plate frames (6), a protrusion (64) is fixedly installed on one side of the fixing frame (63) near the front end of the air cavity (62), and a strong magnet (65) is provided inside the protrusion (64); The raised portion (64) and the grille (2) are arranged in a front-to-back correspondence, and the air cavity (62) is installed as an inner lining between the mounting plate frame (6) and the fixed frame (63); The support member comprises a reinforcing rod (51) installed at both ends of the upper bumper (4) and the lower bumper (5); an arc frame (52) is installed at the bottom end of the reinforcing rod (51); the end of the arc frame (52) is installed on one side of the mounting plate frame (6); a middle connecting rod (53) is fixedly installed between adjacent arc frames (52); a bracket (54) is fixedly connected to one side of the main beam (3) at the center of the middle connecting rod (53); a force rod (55) is fixedly connected between the middle connecting rod (53) and the mounting plate frame (6); the middle connecting rod (53) is arranged in a mirror-symmetrical manner with the center of the main beam (3); the middle connecting rod (53) is installed at the center of the arc frame (52); and an acute angle is formed between the bracket (54) and the force rod (55).

2. The bumper support structure according to claim 1, characterized in that: The offsetting portion includes a buffer spring (31) installed inside a fixed frame (63), one end of the buffer spring (31) is fixedly installed with a connecting frame (32), one side of the upper bumper (4) and the lower bumper (5) is fixedly connected to the top of the connecting frame (32), one side of the fixed frame (63) is fixedly connected with an intercepting plate (33), and the outside of the main beam (3) is fixedly installed with multiple groups of airbag components (34), and the airbag components (34) are close to one side of the intercepting plate (33).

3. The bumper support structure according to claim 2, characterized in that: The intercepting plate (33) is provided with openings for the buffer springs (31) to pass through. The buffer springs (31) are provided in at least four groups and are distributed in an array.

4. The bumper support structure according to claim 2, characterized in that: The connecting frame (32) is an iron component, and a sliding hole for buffering the connecting frame (32) is provided inside the fixing frame (63).

5. The bumper support structure according to claim 1, characterized in that: The upper bumper (4), the lower bumper (5) and the plastic frame (1) are arranged in parallel up and down, and the upper bumper (4) and the lower bumper (5) are both plastic components.

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