A bumper with an internal skeleton

Abstract

The application relates to the technical field of bumpers, in particular to a bumper with an inner framework, which comprises a bumper body connected to a cross beam; a mounting assembly is arranged on the cross beam to detach the bumper body; at least one buffer assembly and an energy absorption assembly are arranged on the cross beam; the energy absorption assembly is used for absorbing the energy of the buffer assembly; the end of the buffer assembly is provided with a framework body connected to the bumper body; and an air bag assembly is arranged on the framework body; the bumper with the inner framework can buffer the impact force for multiple times after being impacted, greatly reduces the impact kinetic energy, effectively reduces the deformation of the cross beam, reduces the vibration of the cross beam, reduces the possibility of deformation of the cross beam, reduces the phenomenon of extrusion of the cross beam to the vehicle body, thereby achieving the purpose of effectively protecting the vehicle body, and greatly reducing the loss of the vehicle body.

Description

Technical Field

[0001] This invention relates to the field of bumper technology, and more particularly to a bumper with an internal skeleton. Background Technology

[0002] Bumpers are an indispensable part of motor vehicles. They are installed at the front and rear of the vehicle. Bumpers have a decorative function, and they also use dynamic principles to reduce wind resistance and the force exerted on the bumper by external forces. Their most important function is protection. They can absorb or mitigate external impacts, effectively protect the vehicle body, and ensure the safety of the occupants.

[0003] Generally, bumpers are connected to the front of the vehicle via a central crossbeam, and are mounted as a whole on the crossbeam. In the event of an accident, the bumper has limited capacity to withstand pressure, and the internal crossbeam is quite heavy. Once a collision occurs, damage to the bumper may cause the crossbeam to deform, and the deformed area will severely compress the vehicle body, making the vehicle body difficult to repair and increasing the extent of damage. Therefore, bumpers with a frame are designed to absorb impact energy and reduce the degree of compression of the vehicle body by the crossbeam. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a bumper with an internal frame to solve the problem that when the bumper is damaged in an accident, the crossbeam connecting the bumper is also deformed, and the deformed area causes severe compression to the vehicle body.

[0005] To achieve the above objectives, the present invention provides a bumper with an internal skeleton, comprising: a bumper body connected to a crossbeam; a mounting assembly provided on the crossbeam to make the bumper body detachable; at least one buffer assembly and an energy-absorbing assembly provided on the crossbeam, the energy-absorbing assembly absorbing the energy of the buffer assembly; a skeleton body provided at one end of the buffer assembly, the skeleton body being connected to the bumper body; an airbag assembly provided on the skeleton body, the airbag assembly reducing the impact force during a collision; the other end of the airbag assembly being connected to the bumper body; and the bumper body, the airbag assembly, and the skeleton body being sequentially connected to form a single unit.

[0006] Preferably, the buffer assembly includes a cylinder mounted on the crossbeam, a piston is disposed inside the cylinder, a movable rod is connected to the piston and passes through the cylinder, the frame body is connected to the movable rod, a guide block is disposed on the crossbeam, the movable rod passes through the guide block, and a spring is disposed between the frame body and the guide block and sleeved on the outer ring of the movable rod.

[0007] Preferably, the energy-absorbing component includes a second cylinder disposed on the crossbeam, the second cylinder being connected to the first cylinder, the second cylinder having a partition adapted to the second cylinder, the outer ring of the partition having a sealing ring, the partition dividing the second cylinder into a compression section and a connecting section, the compression section containing gas, and the connecting section connecting the compression section to the first cylinder.

[0008] Preferably, the frame body includes a support plate one connected to the movable rod, the support plate one is provided with a plurality of inclined plates, the inclined plates are connected to a support plate two, the support plate two connects all the inclined plates together, so that the support plate one, the inclined plates and the support plate two form a whole, the inclined directions of two adjacent inclined plates are opposite to form a uniformly arranged through hole with the support plate one and the support plate two, and the support plate two is provided with a bearing plate.

[0009] Preferably, the airbag assembly includes foam cotton disposed on the support plate, the other end of the foam cotton being connected to the inner wall of the bumper body, a hollow protective plate being wrapped inside the foam cotton, the airbag body being wrapped inside the protective plate, a gas generator capable of generating a large amount of gas being installed on the foam cotton, the gas generator being connected to the airbag body, and an ignition element controlled by the vehicle system being installed on the gas generator.

[0010] Preferably, a connector is provided between the bumper body and the frame body. The connector includes a ring disposed on the inclined plate, and a hook adapted to the ring is connected to the bumper body by a rope, the hook hooking the ring.

[0011] Preferably, the mounting assembly includes connecting plates disposed at both ends of the bumper body, the connecting plates being provided with T-shaped protrusions, and the crossbeam being provided with T-shaped grooves adapted to the T-shaped protrusions.

[0012] Preferably, the crossbeam is provided with fasteners, and the connecting plate is snapped together with the crossbeam by the fasteners. The fasteners include screws threaded onto the crossbeam, the screws having threads that penetrate the crossbeam and the connecting plate, and nuts being threaded onto the screws.

[0013] The beneficial effects of this invention are as follows: During installation, the bumper body is mounted on the crossbeam using the mounting components. When the front of the vehicle is impacted, the bumper body is damaged and deformed, causing the airbag assembly to deform as well. When the vehicle control system senses this, it controls the airbag assembly to generate gas that expands rapidly to counteract the impact and reduce the impact force. Due to the force, the frame body is impacted. At this time, the buffer assembly cushions the crossbeam, and the energy-absorbing assembly absorbs the generated kinetic energy, reducing the force on the crossbeam and thus reducing the vibration of the crossbeam. This further effectively reduces the impact on the crossbeam. In summary, the bumper with an inner frame of this application buffers the impact force multiple times after being impacted, greatly reducing the impact kinetic energy, effectively reducing the deformation and vibration of the crossbeam, reducing the possibility of crossbeam deformation, and reducing the phenomenon of the crossbeam squeezing the vehicle body, thereby effectively protecting the vehicle body and greatly reducing vehicle damage. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is an exploded view of the present invention;

[0017] Figure 3 This is a partial structural diagram of the present invention;

[0018] Figure 4 For the present invention Figure 3 A three-dimensional half-section view;

[0019] Figure 5 This is a structural entity diagram of the skeleton body of the present invention;

[0020] Figure 6 This is a structural schematic diagram of the airbag assembly of the present invention;

[0021] Figure 7 This is a structural entity diagram of the connector of the present invention;

[0022] Figure 8 This is a structural diagram of the fastener of the present invention.

[0023] The components in the diagram are labeled as follows: 1. Bumper body; 2. Crossbeam; 3. Mounting assembly; 301. Connecting plate; 302. T-shaped protrusion; 303. T-shaped groove; 4. Buffer assembly; 401. Cylinder 1; 402. Piston; 403. Movable rod; 404. Guide block; 405. Spring; 5. Energy absorption assembly; 501. Cylinder 2; 502. Partition plate; 503. Sealing ring; 6. Frame body; 601. Support plate 1; 602. Inclined plate; 603. Support plate 2; 604. Through hole; 605. Bearing plate; 7. Airbag assembly; 701. Foam cotton; 702. Protective plate; 703. Airbag body; 704. Gas generator; 705. Ignition element; 8. Connector; 801. Ring; 802. Hook; 9. Fastener; 901. Screw; 902. Nut. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0025] Example 1:

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a bumper with an internal frame includes: a bumper body 1, which is connected to a crossbeam 2, which is mounted on the vehicle body. The bumper body 1 is located at the front end of the vehicle body. A mounting assembly 3 is provided on the crossbeam 2 to make the bumper body 1 detachable. At least one buffer assembly 4 and an energy-absorbing assembly 5 are provided on the crossbeam 2. The buffer assembly 4 and the energy-absorbing assembly 5 correspond one-to-one. The energy-absorbing assembly 5 is used to absorb the energy of the buffer assembly 4. A frame body 6 is provided at the end of the buffer assembly 4. The frame body 6 is connected to the bumper body 1. An airbag assembly 7 is provided on the frame body 6. The airbag assembly 7 is used to reduce the impact force during a collision. The other end of the airbag assembly 7 is connected to the bumper body 1. The bumper body 1, the airbag assembly 7, and the frame body 6 are sequentially connected to form a whole.

[0027] Working principle: During installation, the bumper body 1 is mounted on the crossbeam 2 using the mounting component 3. When the front of the vehicle is impacted, the bumper body 1 is damaged and deformed, causing the airbag component 7 to deform. When the vehicle control system senses this, it controls the airbag component 7 to generate gas that expands rapidly to counteract the impact and reduce the impact force. Due to the force, the frame body 6 is impacted. At this time, the buffer component 4 buffers the crossbeam 2, and the energy absorption component 5 absorbs the generated kinetic energy, reducing the force on the crossbeam 2 and achieving the purpose of reducing the vibration of the crossbeam 2, further effectively reducing the impact on the crossbeam 2. In summary, the bumper with an inner frame of this application buffers the impact force multiple times after being impacted, greatly reducing the impact kinetic energy, effectively reducing the deformation of the crossbeam 2, reducing the vibration of the crossbeam 2, reducing the possibility of deformation of the crossbeam 2, and reducing the phenomenon of the crossbeam 2 squeezing the vehicle body, thereby effectively protecting the vehicle body and greatly reducing vehicle damage.

[0028] Example 2:

[0029] like Figure 2 , Figure 3 and Figure 4 As shown, a bumper with an internal frame includes a buffer assembly 4 comprising a cylinder 401 mounted on a crossbeam 2. The cylinder 401 is filled with gas, and a piston 402 is disposed inside the cylinder 401. A movable rod 403 is connected to the piston 402 and passes through the cylinder 401. The movable rod 403 is arranged along the height direction of the cylinder 401. The frame body 6 is connected to the movable rod 403. A guide block 404 is disposed on the crossbeam 2, and the movable rod 403 passes through the guide block 404. A spring 405 is disposed between the frame body 6 and the guide block 404 and is sleeved on the outer ring of the movable rod 403.

[0030] like Figure 2 , Figure 3 and Figure 4 As shown, a bumper with an internal frame includes an energy-absorbing component 5 comprising a second cylinder 501 mounted on a crossbeam 2. The second cylinder 501 is connected to a first cylinder 401. A valve controls the flow of gas from the first cylinder 401 into the second cylinder 501 at a faster speed and from the second cylinder 501 into the first cylinder 401 at a slower speed. A partition 502 adapted to the second cylinder 501 is provided inside the second cylinder 501. The partition 502 abuts against the inner wall of the second cylinder 501. A sealing ring 503 is provided on the outer ring of the partition 502. The sealing ring 503 is in close contact with the inner wall of the second cylinder 501. The partition 502 divides the second cylinder 501 into a compression section and a connecting section. The compression section contains gas, and the connecting section connects the compression section to the first cylinder 401.

[0031] like Figure 2 and Figure 5As shown, a bumper with an internal skeleton includes a support plate 601 connected to a movable rod 403. Multiple inclined plates 602 are provided on the support plate 601, and a second support plate 603 is connected to each inclined plate 602. The support plate 601 and the second support plate 603 are arranged along the length of the crossbeam 2. The second support plate 603 connects all the inclined plates 602 together, forming a whole with the support plate 601, the inclined plates 602, and the second support plate 603. Two adjacent inclined plates 602 have opposite inclination directions, forming uniformly arranged through holes 604 with the support plate 601 and the second support plate 603. A bearing plate 605 is provided on the second support plate 603, and the bearing plate 605 is an extension of the second support plate 603.

[0032] like Figure 1 , Figure 2 and Figure 6 As shown, a bumper with an internal skeleton includes an airbag assembly 7 comprising a foam cotton 701 mounted on a support plate 605. The other end of the foam cotton 701 is connected to the inner wall of the bumper body 1. A hollow protective plate 702 is wrapped inside the foam cotton 701, and an airbag body 703 is wrapped inside the protective plate 702. A gas generator 704 capable of generating a large amount of gas is mounted on the foam cotton 701. The gas generator 704 is connected to the airbag body 703. An ignition element 705 controlled by the vehicle system is mounted on the gas generator 704. The ignition element 705 can ignite the gas generating agent inside the gas generator 704 to generate a large amount of nitrogen gas.

[0033] Working principle: When a collision occurs, the bumper body 1 breaks due to the impact. The vehicle system detects the impact signal and issues a command, which activates the ignition element 705, igniting the gas generator in the gas generator 704 to produce a large amount of gas. The gas enters the airbag body 703 through the pipe, causing the airbag body 703 to expand rapidly. This causes the protective plate 702 to rupture, which, together with the foam cotton 701, forms a buffer against the initial impact force, reducing the impact kinetic energy. Under safe conditions, the foam cotton 701 prevents the protective plate 702 from directly contacting the bumper body 1, effectively hindering the collision between the protective plate 702 and the bumper body 1. In dangerous situations, it can play a buffering role.

[0034] Due to the force, the impact force is transmitted to the frame body 6. When the frame body 6 is subjected to a huge impact, the frame body 6 will be subjected to the force. Due to the structure of the frame body 6, the impact force is further reduced. The arrangement of the inclined plate 602 improves the stability of the frame body 6 and improves the impact resistance of the frame body 6. The setting of the second support plate 603 can disperse the force, which is then transmitted to the second support plate 603 through the inclined plate 602. The setting of the through hole 604 can reduce the overall weight of the frame body 6. The structure of the frame body 6 itself increases the strength, and at the same time, the contact with the foam cotton 701 increases the flexibility of the frame body 6, preventing the frame body 6 from colliding with surrounding parts.

[0035] The second support plate 603 further transmits the buffered impact force to the movable rod 403. The movable rod 403 moves, and under the action of the second support plate 603 and the guide block 404, the spring 405 is compressed. The movable rod 403 drives the piston 402 to slide within the first cylinder 401. The piston 402 compresses the gas, causing it to quickly enter the connecting part within the second cylinder 501. The compression of the gas in the connecting part causes friction between the partition plate 502 and the sealing ring 503 and the second cylinder 501, forcing the partition plate 502 to lift the sealing ring 503 to a certain height. This compresses the gas in the compression part of the second cylinder 501, reducing the volume of the compression part and increasing the pressure, thereby generating heat, consuming energy, absorbing the impact kinetic energy, and releasing the energy stored in the spring 405. This effectively reduces the impact force on the crossbeam 2, thus achieving a reduction in... The purpose of the vibration of the crossbeam 2 is as follows: Because the gas in the compression section is compressed, after the impact force disappears, the air pressure in the connecting section and the compression section is balanced again, forcing the partition 502 to drive the sealing ring 503 to return to its original position, so that the movable rod 403 returns to its original position and the spring 405 returns to its original state. When some parts are damaged, the buffer assembly 4 and energy absorption assembly 5 at each location are replaced, without the need to replace them all. In summary, after being impacted, the impact force is buffered multiple times. The buffering of the airbag assembly 7, the protection of the frame body 6, and the cooperation of the buffer assembly 4 and the energy absorption assembly 5 greatly reduce the impact kinetic energy, effectively reduce the deformation of the crossbeam 2, reduce the vibration of the crossbeam 2, reduce the possibility of deformation of the crossbeam 2, and reduce the phenomenon of the crossbeam 2 squeezing the vehicle body, thereby achieving the purpose of effectively protecting the vehicle body and greatly reducing the damage to the vehicle body.

[0036] Example 3:

[0037] like Figure 2 and Figure 7 As shown, a bumper with an internal frame is provided. A connector 8 is provided between the bumper body 1 and the frame body 6. The connector 8 includes a ring 801 provided on an inclined plate 602. The ring 801 is provided on both sides of the frame body 6. The bumper body 1 is connected to a hook 802 that is adapted to the ring 801 by a rope. The hook 802 hooks the ring 801 and provides certain support to the frame body 6.

[0038] like Figure 1 and Figure 2 As shown, a bumper with an internal skeleton has an installation component 3 including connecting plates 301 at both ends of the bumper body 1. The connecting plates 301 are adapted to both ends of the crossbeam 2. The connecting plates 301 are provided with T-shaped protrusions 302, and the crossbeam 2 is provided with T-shaped grooves 303 adapted to the T-shaped protrusions 302.

[0039] like Figure 2 and Figure 8 As shown, a bumper with an internal frame is provided with fasteners 9 on the crossbeam 2. The connecting plate 301 is snapped together with the crossbeam 2 by the fasteners 9. The fasteners 9 include screws 901 threadedly connected to the crossbeam 2. The screws 901 are threaded through the crossbeam 2 and the connecting plate 301. Nuts 902 are threadedly connected to the screws 901.

[0040] Working principle: When installing the frame body 6, to improve the stability of the frame body 6, it is connected to the bumper body 1. The hook 802 hooks onto the ring 801 of the inclined plate 602 on the frame body 6, making the frame body 6 and the bumper body 1 integrated. When the frame body 6 is impacted, the hook 802 and ring 801 detach, or the connecting rope breaks. The hook 802 and ring 801 improve the support effect on the frame body 6 and enhance the connection between the frame body 6 and the movable rod 403, ensuring stability under safe conditions. When installing the bumper body 1, the T-shaped protrusion 302 on the bumper body 1 is aligned with the T-shaped groove 303, and the bumper body 1 is installed along the T-shaped groove 303. This design facilitates quick and accurate positioning for workers, preventing collisions with vehicle body parts during bumper installation, thus increasing installation speed. It also allows for easier disassembly if the bumper body is damaged, enhancing flexibility. After the T-shaped protrusion 302 and T-shaped groove 303 are fully aligned, screws 901 are passed through the mounting holes of the crossbeam 2 and connecting plate 301, and a nut 902 is used to secure the other side, strengthening the connection between the crossbeam 2 and connecting plate 301, improving the stability of the bumper body 1, and facilitating disassembly. In summary, this design improves the integration of the device, strengthens its strength, enhances stability during safe operation, helps resist impact forces during collisions, facilitates the installation and disassembly of the bumper body 1, and improves worker efficiency.

[0041] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0042] This 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 this invention should be included within the scope of protection of this invention.

Claims

1. A bumper with an internal skeleton, comprising: A bumper body (1) is connected to a crossbeam (2); characterized in that the crossbeam (2) is provided with an installation component (3) to make the bumper body (1) detachable, and the crossbeam (2) is provided with at least one buffer component (4) and an energy-absorbing component (5), the energy-absorbing component (5) being used to absorb the energy of the buffer component (4), the end of the buffer component (4) being provided with a skeleton body (6), the skeleton body (6) being connected to the bumper body (1), the skeleton body (6) being provided with an airbag component (7), the airbag component (7) being used to reduce the impact force during a collision, the other end of the airbag component (7) being connected to the bumper body (1), and the bumper body (1), the airbag component (7) and the skeleton body (6) being sequentially connected to form a whole; The buffer assembly (4) includes a cylinder (401) mounted on the crossbeam (2), a piston (402) is provided inside the cylinder (401), a movable rod (403) is connected to the piston (402) and passes through the cylinder (401), the frame body (6) is connected to the movable rod (403), a guide block (404) is provided on the crossbeam (2), the movable rod (403) passes through the guide block (404), and a spring (405) sleeved on the outer ring of the movable rod (403) is provided between the frame body (6) and the guide block (404). The energy-absorbing component (5) includes a second cylinder (501) disposed on the crossbeam (2), the second cylinder (501) being connected to the first cylinder (401), the second cylinder (501) being provided with a partition (502) adapted to the second cylinder (501), the outer ring of the partition (502) being provided with a sealing ring (503), the partition (502) dividing the second cylinder (501) into a compression section and a connecting section, the compression section being filled with gas, and the connecting section connecting the compression section to the first cylinder (401); The frame body (6) includes a support plate one (601) connected to the movable rod (403). The support plate one (601) is provided with a plurality of inclined plates (602). The inclined plates (602) are connected to a support plate two (603). The support plate two (603) connects all the inclined plates (602) together, so that the support plate one (601), the inclined plates (602) and the support plate two (603) form a whole. The inclined directions of two adjacent inclined plates (602) are opposite to those of the support plate one (601) and the support plate two (603), forming a uniformly arranged through hole (604). The support plate two (603) is provided with a bearing plate (605).

2. A bumper with an internal skeleton according to claim 1, characterized in that, The airbag assembly (7) includes foam cotton (701) disposed on the support plate (605), the other end of the foam cotton (701) being connected to the inner wall of the bumper body (1), a hollow protective plate (702) being wrapped inside the foam cotton (701), an airbag body (703) being wrapped inside the protective plate (702), a gas generator (704) capable of generating a large amount of gas being installed on the foam cotton (701), the gas generator (704) being connected to the airbag body (703), and an ignition element (705) controlled by the vehicle system being installed on the gas generator (704).

3. A bumper with an internal skeleton according to claim 2, characterized in that, A connector (8) is provided between the bumper body (1) and the frame body (6). The connector (8) includes a ring (801) provided on the inclined plate (602). A hook (802) adapted to the ring (801) is connected to the bumper body (1) by a rope. The hook (802) hooks the ring (801).

4. A bumper with an internal skeleton according to claim 1, characterized in that, The mounting assembly (3) includes connecting plates (301) disposed at both ends of the bumper body (1), the connecting plates (301) being provided with T-shaped protrusions (302), and the crossbeam (2) being provided with T-shaped grooves (303) adapted to the T-shaped protrusions (302).

5. A bumper with an internal skeleton according to claim 4, characterized in that, Fasteners (9) are provided on the crossbeam (2). The connecting plate (301) is snapped together with the crossbeam (2) by the fasteners (9). The fasteners (9) include screws (901) threaded on the crossbeam (2). The screws (901) are threaded through the crossbeam (2) and the connecting plate (301). Nuts (902) are threaded on the screws (901).

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