CN219236966U - Multilayer automobile bumper with internal angle adjusting function within specified range - Google Patents

Abstract

The application discloses multilayer car bumper with interior angle adjustment function in regulation scope, it includes: plastic housing, protection inlayer, energy-absorbing material, fixing base, slot, fixture block, fixed plate, coupling spring, clamp plate, grooved steel plate, inserted bar, draw-in groove, first opening, protruding muscle, movable block, strengthening rib, extension pole, fixed axle, gear shaft, riser, connecting rod, connecting block, connecting rod, laminating board, buffer spring, tile shape spring leaf, pinion rack, tile shape buffer plate, fixed block, screw rod, carousel, regulating block, regulation pole, card pole, spacing spring and second opening. The utility model has the advantages of it adopts multilayer car bumper to realize the energy-absorbing protection when striking, can further improve crashproof protection performance through setting up the strengthening rib, has the angle modulation function in the regulation within the scope simultaneously, can carry out the regulation when installing according to crashproof position needs through setting up rotatable strengthening rib to can stabilize fixedly to the strengthening rib position after adjusting.

Description

Multilayer automobile bumper with internal angle adjusting function within specified range

Technical Field

The utility model relates to a multilayer automobile bumper with an inner angle adjusting function within a specified range, and belongs to the technical field of automobile bumper application.

Background

The automobile bumper is a safety device for absorbing and relieving external impact force and protecting the front and rear parts of the automobile body. Automobile front and rear bumpers have been stamped from steel plates into channel steel, riveted or welded together with frame rails, and have a large gap with the automobile body, which has been quite unsightly, and have also moved to innovative roads as an important safety device with the development of the automobile industry and the large number of applications of engineering plastics in the automobile industry. In addition to the original protection function, the front and rear bumpers of the car today are required to be harmonious and unified with the shape of the car body, and to be lightweight. The front and rear bumpers of a car are made of plastic, which is called a plastic bumper, and the plastic bumper of a general car consists of an outer plate, a buffer material and a cross beam. Wherein the outer plate and the buffer material are made of plastics, and the cross beam is punched into a U-shaped groove by a cold-rolled sheet; the outer plates and cushioning material are attached to the cross beam.

In patent document CN202022252126.1, a fully-enclosed automobile bumper convenient for quick assembly and disassembly, the automobile bumper can well solve the problem that the disassembly cannot be quick in the past, is convenient for manual operation, and greatly improves the working efficiency, but most of current bumpers are fixedly installed through assembly or welding, in the actual use of the automobile bumper, the energy absorption anti-collision performance of the bumper is easy to change due to different protection heights of the bumper, more serious collision accidents are easy to be caused when the height difference occurs between the bumper and the actual collision position, and the angle adjusting function cannot be performed within a specified range. At present, a multilayer automobile bumper which has a reasonable and reliable structure, has an angle adjusting function within a specified range and can improve the anti-collision performance and has the angle adjusting function within the specified range does not exist.

Disclosure of Invention

In order to solve the not enough of prior art, the energy-absorbing protection when this application adopts multilayer car bumper to realize striking can play good energy-absorbing cushioning effect through setting up multilayer bumper to the structural strength of cooperation fluted steel sheet can play the front and back protect function when receiving the striking, can further improve crashproof protection performance through setting up the strengthening rib, improves driver's personnel's security, and the bumper is convenient for install fixedly, can realize the stability of installation.

More in order to solve the problems in the prior art: simultaneously have the angle regulation function in the regulation scope, can carry out the regulation when installing according to crashproof position needs through setting up rotatable strengthening rib to can stabilize fixedly to the strengthening rib position after adjusting, when making things convenient for the technician to operate, can further improve crashproof performance, be favorable to improving bumper's safety in utilization.

Further in order to solve the problems in the prior art: and have good buffering energy-absorbing effect, can receive external force deformation in the strengthening rib through setting up the connecting rod in strengthening rib department, play energy-absorbing cushioning effect through the cooperation of buffer spring and tile shape buffer plate, can effectively reduce the dynamics that automobile frame received the striking, and then protect driver's safety, improve automobile bumper's practicality.

In order to solve the deficiencies in the prior art, the present application provides a multi-layered automobile bumper with an internal angle adjusting function within a prescribed range, comprising: the energy-absorbing material comprises a plastic shell, a protective inner layer, an energy-absorbing material, a groove steel plate and reinforcing ribs; the plastic shell is filled with energy absorbing materials, a groove steel plate is arranged on the inner side of the protection inner layer, a reinforcing rib is arranged between the groove steel plate and the protection inner layer, the reinforcing rib is rotationally connected with the top of the movable block, the movable block is in sliding connection with the inside of the channel steel plate, the side wall of the reinforcing rib is fixedly connected with an extension rod, the top end of the extension rod is respectively fixedly connected with two ends of a fixed shaft, the extension rod and the fixed shaft are rotationally connected with a gear shaft, the protection inner layer is fixedly connected with a toothed plate, and the toothed plate is meshed with the gear shaft; the reinforcing rib is connected with the connecting block through the connecting rod, reinforcing rib middle part fixed mounting has the connecting rod, the connecting rod runs through with the connecting block middle part and pegs graft, connecting rod bottom and laminating board fixed connection, just the laminating board passes through buffer spring and is connected with the connecting block, the inside fixed mounting of channel-section steel board has tile shape buffer board, tile shape buffer board is connected with the laminating of laminating board.

Further, plastic housing and protection inlayer fixed connection, be formed with the energy-absorbing material that polypropylene material made between plastic housing and the protection inlayer, it has high temperature resistant plastic foam to fill between protection inlayer and the strengthening rib both sides, protection inlayer inner wall fixed mounting has the fixed plate, the quantity of fixed plate is two, two the fixed plate symmetric distribution is to protection inlayer both sides, fixed plate and connecting spring one end fixed connection, the connecting spring other end and clamp plate fixed connection, clamp plate and channel-section steel board both ends surface laminating are connected.

Further, the fixing base is fixedly installed at both ends of the inner protection layer, the slot is formed in the bottom of the fixing base, a convex clamping block is arranged in the slot, both ends of the channel steel plate are fixedly connected with the inserting rod, the section of the inserting rod is of an L-shaped structure, the inserting rod is embedded and spliced with the inside of the slot, a clamping groove is formed in the inner wall of the inserting rod, and the clamping groove is connected with the clamping block in a clamping mode.

Further, the channel-section steel board cross-section is U type structure, first opening and second opening have been seted up respectively at channel-section steel board top, first open-ended quantity is two, two first opening symmetric distribution to second opening both sides, channel-section steel board inner wall fixedly connected with protruding muscle, protruding muscle symmetric distribution channel-section steel board both sides, protruding muscle is connected with movable block lateral wall gomphosis, inside and protruding muscle surface sliding connection in movable block both ends.

Further, the strengthening rib is U-shaped bending structure, the strengthening rib both ends all extend to inside the opening, strengthening rib both sides symmetric distribution has a plurality of extension pole, the extension pole is slope distribution, be equipped with two fixed axles between the extension pole, fixed axle and strengthening rib all are equipped with a plurality of gear shaft, every the gear shaft all is connected with the pinion rack meshing, the pinion rack is arc structure, pinion rack place centre of a circle and movable block and strengthening rib junction coincidence are so that the gear shaft rolls at the pinion rack surface.

Further, protection inlayer top respectively with pinion rack and tile shape buffer board fixed connection, tile shape buffer board is connected with pinion rack surface laminating, tile shape buffer board one end is connected with the protection inlayer, tile shape buffer board other end forms the interval with the protection inlayer and is convenient for bend when tile shape buffer board warp.

Further, the inside connecting rod that is equipped with two symmetric distributions of strengthening rib, two the connecting rod all rotates with the strengthening rib bottom to be connected, and two the connecting rod other end rotates with the connecting block both ends respectively to be connected, connecting block and connecting rod surface sliding connection, the connecting rod cup joints with buffer spring inside, the connecting rod is located the strengthening rib middle part, just the connecting rod extends to inside the second opening.

Further, the inside tile shape spring leaf that is equipped with of channel-section steel board, tile shape spring leaf both ends respectively with channel-section steel board both sides inner wall fixed connection, tile shape spring leaf top is equipped with the laminating board of arc structure, laminating board and tile shape spring leaf surface sliding connection.

Further, strengthening rib one side respectively with two riser fixed connection, riser bottom all rotates with the regulation pole to be connected, it rotates with the regulating block to adjust the pole bottom to be connected, just it distributes to riser one side to adjust the pole for the slope form.

Further, channel-section steel board bottom fixed mounting has two fixed blocks, two the channel-section steel board both sides of fixed block symmetry subsection, two the fixed block all rotates with the screw rod to be connected, screw rod and regulating block threaded connection, the regulating block is located between two fixed blocks, screw rod one end fixedly connected with carousel, the carousel edge is equipped with evenly distributed's latch, the fixed block top rotates with the clamping lever to be connected, the clamping lever is the kink column structure, the clamping lever passes through spacing spring and is connected with the fixed block lateral wall, just the clamping lever bottom is with the inside joint of latch of carousel.

The beneficial point of the application lies in: the utility model provides a rational in infrastructure reliable and have angle regulation function and can improve the multilayer car bumper that has angle regulation function in the regulation scope of anti-collision performance in the regulation scope, energy-absorbing protection when it adopts multilayer car bumper to realize the striking, can play good energy-absorbing cushioning effect through setting up multilayer bumper, and the structural strength of cooperation trough steel sheet can play the front and back and receive the protect function when striking, can further improve crashproof protection performance through setting up the strengthening rib, improve driver's security, and the bumper is convenient for install fixedly, can realize the stability of installation, angle regulation function in the regulation scope has simultaneously, can carry out the regulation when installing according to crashproof position needs through setting up rotatable strengthening rib, and can be stable fixed to the strengthening rib position after adjusting, when making things convenient for the technician to operate, can further improve anti-collision performance, and have good cushioning effect, can play the energy-absorbing cushioning effect through the cooperation of buffer spring and tile buffer sheet when the strengthening rib receives external force to warp in the strengthening rib department, can effectively reduce the automobile frame, and the safety of the automobile that can receive the car bumper is further improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to provide a further understanding of the application with regard to the other features, objects and advantages of the application. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application. In the drawings:

FIG. 1 is a schematic structural view of a multi-layered automobile bumper with a range-specific angle adjustment function according to one embodiment of the present application;

FIG. 2 is a schematic view of a first view structure of the embodiment shown in FIG. 1;

FIG. 3 is a schematic side view of the embodiment of FIG. 2;

FIG. 4 is a schematic top view of the embodiment of FIG. 2 showing the reinforcement ribs;

FIG. 5 is a schematic view showing a perspective structure of the reinforcing rib in the embodiment shown in FIG. 2;

FIG. 6 is a schematic view of the embodiment of FIG. 2 showing a perspective view of the extension pole;

FIG. 7 is a schematic side view of the embodiment of FIG. 2 showing the attachment plate;

FIG. 8 is a schematic view of a partially enlarged construction of the embodiment of FIG. 2 at A in FIG. 2;

FIG. 9 is a schematic view of a perspective view of the screw in the embodiment of FIG. 2;

fig. 10 is a schematic perspective view of the embodiment of fig. 2 showing the position of the insert rod.

Meaning of reference numerals in the drawings:

1. plastic shell, 2, protection inner layer, 3, energy absorbing material, 4, fixing seat, 5, slot, 6, fixture block, 7, fixed plate, 8, connecting spring, 9, pressing plate, 10, channel steel plate, 11, inserting rod, 12, clamping groove, 13, first opening, 14, convex rib, 15, movable block, 16, reinforcing rib, 17, extension rod, 18, fixed shaft, 19, gear shaft, 20, vertical plate, 21, connecting rod, 22, connecting block, 23, connecting rod, 24, attaching plate, 25, buffer spring, 26, tile-shaped spring piece, 27, toothed plate, 28, tile-shaped buffer plate, 29, fixed block, 30, screw rod, 31, turntable, 32, adjusting block, 33, adjusting rod, 34, clamping rod, 35, limit spring, 36 and second opening.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 10, a multi-layered automobile bumper having an inner angle adjusting function within a prescribed range includes: a plastic shell 1, a protective inner layer 2, an energy absorbing material 3, channel steel plates 10 and reinforcing ribs 16.

Referring to fig. 1 to 10, as a preferred solution, an energy absorbing material 3 is filled between the plastic casing 1 and the protection inner layer 2, a groove steel plate 10 is arranged on the inner side of the protection inner layer 2, a reinforcing rib 16 is arranged between the channel steel plate 10 and the protection inner layer 2, the reinforcing rib 16 is rotationally connected with the top of the movable block 15, the movable block 15 is in sliding connection with the inside of the channel steel plate 10, the side wall of the reinforcing rib 16 is fixedly connected with an extension rod 17, the top end of the extension rod 17 is respectively and fixedly connected with two ends of a fixed shaft 18, the extension rod 17 and the fixed shaft 18 are rotationally connected with a gear shaft 19, the protection inner layer 2 is fixedly connected with a toothed plate 27, the toothed plate 27 is in meshed connection with the gear shaft 19, the energy absorbing material 3 is used for improving the energy absorbing protection function of the bumper, further protecting function is achieved through the reinforcing rib 16, a buffering function is achieved through bending deformation of the reinforcing rib 16 during impact, good anti-impact performance can be achieved through compression of a buffer spring 25, and the use safety of the bumper is improved.

Referring to fig. 1 to 2 and 5, as a concrete scheme, the reinforcing rib 16 is connected with the connecting block 22 through the connecting rod 21, a connecting rod 23 is fixedly installed in the middle of the reinforcing rib 16, the connecting rod 23 is inserted through the middle of the connecting block 22, the bottom end of the connecting rod 23 is fixedly connected with the attaching plate 24, the attaching plate 24 is connected with the connecting block 22 through the buffer spring 25, a tile-shaped buffer plate 28 is fixedly installed inside the channel steel plate 10, and the tile-shaped buffer plate 28 is attached to the attaching plate 24.

Referring to fig. 1 to 3, as an extension scheme, the plastic casing 1 is fixedly connected with the protection inner layer 2, an energy absorbing material 3 made of polypropylene material is formed between the plastic casing 1 and the protection inner layer 2, high temperature resistant plastic foam is filled between the protection inner layer 2 and two sides of the reinforcing ribs 16, fixing plates 7 are fixedly installed on the inner wall of the protection inner layer 2, the number of the fixing plates 7 is two, the fixing plates 7 are symmetrically distributed to two sides of the protection inner layer 2, the fixing plates 7 are fixedly connected with one end of a connecting spring 8, the other end of the connecting spring 8 is fixedly connected with a pressing plate 9, and the pressing plate 9 is in fit connection with the surfaces of two ends of the channel steel plate 10.

Referring to fig. 1 to 2 and 10, such scheme is adopted, protection inlayer 2 both ends are all fixed mounting has fixing base 4, slot 5 has been seted up to fixing base 4 bottom, slot 5 is inside to be equipped with bellied fixture block 6, channel-section steel board 10 both ends are all with inserted bar 11 fixed connection, the cross-section of inserted bar 11 is L shape structure, inserted bar 11 and the inside gomphosis grafting of slot 5, draw-in groove 12 has been seted up to inserted bar 11 inner wall, just the inside and fixture block 6 joint of draw-in groove 12.

Referring to fig. 1 to 3, as a specific scheme, the section of the channel steel plate 10 is in a U-shaped structure, the top of the channel steel plate 10 is respectively provided with a first opening 13 and a second opening 36, the number of the first openings 13 is two, the first openings 13 are symmetrically distributed to two sides of the second opening 36, the inner wall of the channel steel plate 10 is fixedly connected with convex ribs 14, the convex ribs 14 are symmetrically distributed on two sides of the channel steel plate 10, the convex ribs 14 are connected with the side walls of the movable blocks 15 in a jogged manner, and the insides of two ends of the movable blocks 15 are both connected with the surfaces of the convex ribs 14 in a sliding manner.

Referring to fig. 1 to 6, as a specific scheme, the reinforcing rib 16 is of a U-shaped bent structure, two ends of the reinforcing rib 16 extend into the opening, a plurality of extension rods 17 are symmetrically distributed on two sides of the reinforcing rib 16, the extension rods 17 are obliquely distributed, two fixing shafts 18 are arranged between the extension rods 17, the fixing shafts 18 and the reinforcing rib 16 are provided with a plurality of gear shafts 19, each gear shaft 19 is meshed with the toothed plate 27, the toothed plate 27 is of an arc structure, and the circle center of the toothed plate 27 coincides with the connection position of the movable block 15 and the reinforcing rib 16 so that the gear shafts 19 roll on the surface of the toothed plate 27.

Referring to fig. 2 to 3, as a specific scheme, the top of the protective inner layer 2 is fixedly connected with the toothed plate 27 and the tile-shaped buffer plate 28 respectively, the tile-shaped buffer plate 28 is in surface lamination connection with the toothed plate 27, one end of the tile-shaped buffer plate 28 is connected with the protective inner layer 2, and the other end of the tile-shaped buffer plate 28 forms a space with the protective inner layer 2 so as to facilitate bending when the tile-shaped buffer plate 28 deforms.

Referring to fig. 1 to 2 and 5, as a specific solution, two symmetrically distributed connecting rods 21 are disposed inside the reinforcing rib 16, two connecting rods 21 are both rotatably connected with the bottom end of the reinforcing rib 16, and the other ends of two connecting rods 21 are respectively rotatably connected with two ends of a connecting block 22, the connecting block 22 is slidably connected with the surface of a connecting rod 23, the connecting rod 23 is sleeved inside a buffer spring 25, the connecting rod 23 is located in the middle of the reinforcing rib 16, and the connecting rod 23 extends into the second opening 36.

Referring to fig. 2 and 5, as a specific solution, a tile-shaped spring piece 26 is disposed inside the channel steel plate 10, two ends of the tile-shaped spring piece 26 are fixedly connected with inner walls of two sides of the channel steel plate 10, an attaching plate 24 with an arc structure is disposed at the top of the tile-shaped spring piece 26, and the attaching plate 24 is slidably connected with the surface of the tile-shaped spring piece 26.

Referring to fig. 2, 5 and 8 to 9, as a specific solution, one side of the reinforcing rib 16 is fixedly connected with two vertical plates 20, the bottoms of the vertical plates 20 are both rotatably connected with an adjusting rod 33, the bottom end of the adjusting rod 33 is rotatably connected with an adjusting block 32, and the adjusting rod 33 is distributed to one side of the vertical plates 20 in an inclined manner.

Referring to fig. 2 to 3 and fig. 8 to 9, as a specific scheme, two fixing blocks 29 are fixedly installed at the bottom of the channel steel plate 10, two fixing blocks 29 are symmetrically distributed on two sides of the channel steel plate 10, two fixing blocks 29 are rotatably connected with a screw 30, the screw 30 is in threaded connection with an adjusting block 32, the adjusting block 32 is located between the two fixing blocks 29, one end of the screw 30 is fixedly connected with a turntable 31, uniformly distributed clamping teeth are arranged on the edge of the turntable 31, the top of the fixing block 29 is rotatably connected with a clamping rod 34, the clamping rod 34 is of a bent structure, the clamping rod 34 is connected with the side wall of the fixing block 29 through a limiting spring 35, and the bottom end of the clamping rod 34 is in clamping connection with the inside of the clamping teeth of the turntable 31.

The technical scheme of this application, whole multilayer car bumper that has interior angle regulation function in the regulation scope adopts multilayer car bumper to realize the energy-absorbing protection when striking, plastic housing 1 improves car bumper outward appearance wholeness, play energy-absorbing cushioning effect through energy-absorbing material 3, and be provided with protection inlayer 2 and can further improve cushioning properties, when installing, with slot steel sheet 10 fixed mounting on the car frame, peg graft plastic housing 1 again, protection inlayer 2 and energy-absorbing material 3 on channel-section steel board 10, make fixing base 4 and inserted bar 11 match, make inserted bar 11 peg graft to slot 5 inside, and make fixture block 6 joint to draw-in groove 12 inside, clamp plate 9 contact slot steel sheet 10 on the fixed plate 7 this moment, and make connecting spring 8 compress, play the effect of zonulae occludens through connecting spring 8's pressure.

Simultaneously have strengthening rib 16 angle regulation function, before the installation, through loosening clamping lever 34, rotate carousel 31, make it drive screw 30 rotate between fixed block 29, and then when driving regulating block 32 and remove, when promoting riser 20 through adjusting lever 33 and remove, drive strengthening rib 16 and fixed axle 18 and rotate simultaneously, when making strengthening rib 16 rotate around movable block 15, drive gear shaft 19 at pinion rack 27 surface gyro wheel, after angle modulation is accomplished, through spacing spring 35's elasticity pulling clamping lever 34 and carousel 31 joint realization spacing, when strengthening rib 16 rotates, drive connecting rod 21 and connecting rod 23 are rotatory simultaneously, and then drive the laminating board 24 and slide on tile shape spring piece 26 surface.

When the impact occurs, the plastic shell 1, the protection inner layer 2 and the energy absorbing material 3 play a role in primary buffering and energy absorbing, impact force is transmitted through the toothed plate 27 to enable the toothed plate 28 to play a role in further buffering, when the impact force is transmitted to the reinforcing rib 16, the movable block 15 is driven to slide between the convex ribs 14 through deformation of the reinforcing rib 16 to play a role in buffering, meanwhile, the connecting rod 21 rotates to pull the connecting block 22 to move, the buffer spring 25 between the connecting block 22 and the attaching plate 24 plays a role in further buffering, and the buffer during movement of the connecting rod 23 is realized through the toothed plate 26, so that the good protection effect is achieved, and safety of drivers and passengers is guaranteed.

The foregoing is merely a specific embodiment of the present application and is not intended to limit the application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (10)

1. A multi-layered automobile bumper having an inner angle adjusting function within a prescribed range, characterized in that:

the multi-layered automobile bumper with a prescribed-range inner angle adjusting function includes: the energy-absorbing material comprises a plastic shell (1), a protective inner layer (2), an energy-absorbing material (3), a grooved steel plate (10) and reinforcing ribs (16);

the plastic shell is characterized in that an energy absorbing material (3) is filled between the plastic shell (1) and the protection inner layer (2), a groove steel plate (10) is arranged on the inner side of the protection inner layer (2), a reinforcing rib (16) is arranged between the groove steel plate (10) and the protection inner layer (2), the reinforcing rib (16) is rotationally connected with the top of the movable block (15), the movable block (15) is in sliding connection with the inside of the groove steel plate (10), the side wall of the reinforcing rib (16) is fixedly connected with an extension rod (17), the top end of the extension rod (17) is fixedly connected with two ends of a fixing shaft (18), the extension rod (17) and the fixing shaft (18) are rotationally connected with a gear shaft (19), the protection inner layer (2) is fixedly connected with a toothed plate (27), and the toothed plate (27) is meshed with the gear shaft (19).

The utility model discloses a connecting plate, including connecting block (22) and connecting plate, connecting rod (22) are connected through connecting rod (21) to strengthening rib (16), strengthening rib (16) middle part fixed mounting has connecting rod (23), connecting rod (23) run through with connecting block (22) middle part and peg graft, connecting rod (23) bottom and laminating board (24) fixed connection, just laminating board (24) are connected with connecting block (22) through buffer spring (25), inside fixed mounting of grooved steel board (10) has tile shape buffer board (28), tile shape buffer board (28) are connected with laminating board (24) laminating.

2. A multi-layered automobile bumper having an inner angle adjusting function within a prescribed range according to claim 1, wherein: the plastic shell (1) is fixedly connected with the protection inner layer (2), an energy absorbing material (3) made of a polypropylene material is formed between the plastic shell (1) and the protection inner layer (2), high-temperature resistant plastic foam is filled between the protection inner layer (2) and two sides of the reinforcing ribs (16), fixing plates (7) are fixedly arranged on the inner wall of the protection inner layer (2), the number of the fixing plates (7) is two, the fixing plates (7) are symmetrically distributed to two sides of the protection inner layer (2), the fixing plates (7) are fixedly connected with one end of the connecting spring (8), the other end of the connecting spring (8) is fixedly connected with the pressing plate (9), and the pressing plate (9) is in fit connection with the two end surfaces of the groove steel plate (10).

3. A multi-layered automobile bumper having an inner angle adjusting function within a prescribed range according to claim 1, wherein: the utility model discloses a protection inlayer, including fixing base (4) and inserted bar (6), protection inlayer (2) both ends are all fixed mounting, slot (5) have been seted up to fixing base (4) bottom, slot (5) inside fixture block (6) that are equipped with, slot steel sheet (10) both ends all with inserted bar (11) fixed connection, inserted bar (11) cross-section is L shape structure, inserted bar (11) are pegged graft with inside gomphosis of slot (5), draw-in groove (12) have been seted up to inserted bar (11) inner wall, just inside and fixture block (6) joint of draw-in groove (12).

4. A multi-layered automobile bumper having an inner angle adjusting function within a prescribed range according to claim 1, wherein: the cross-section of the groove steel plate (10) is of a U-shaped structure, a first opening (13) and a second opening (36) are respectively formed in the top of the groove steel plate (10), the number of the first openings (13) is two, the first openings (13) are symmetrically distributed to two sides of the second opening (36), convex ribs (14) are fixedly connected to the inner wall of the groove steel plate (10), the two sides of the groove steel plate (10) are symmetrically distributed, the convex ribs (14) are connected with the side walls of the movable blocks (15) in a jogged mode, and the inner parts of the two ends of the movable blocks (15) are slidably connected with the surfaces of the convex ribs (14).

5. A multi-layered automobile bumper having an inner angle adjusting function within a prescribed range according to claim 1, wherein: the reinforcing rib (16) is of a U-shaped bending structure, two ends of the reinforcing rib (16) are all extended into an opening, a plurality of extension rods (17) are symmetrically distributed on two sides of the reinforcing rib (16), the extension rods (17) are obliquely distributed, two fixing shafts (18) are arranged between the extension rods (17), the fixing shafts (18) and the reinforcing rib (16) are all provided with a plurality of gear shafts (19), each gear shaft (19) is meshed with a toothed plate (27), the toothed plates (27) are of arc structures, and the circle centers of the toothed plates (27) are overlapped with the connecting positions of the movable blocks (15) and the reinforcing rib (16) so that the gear shafts (19) roll on the surfaces of the toothed plates (27).

6. A multi-layered automobile bumper having an inner angle adjusting function within a prescribed range according to claim 1, wherein: the top of the protection inner layer (2) is fixedly connected with the toothed plate (27) and the tile-shaped buffer plate (28) respectively, the tile-shaped buffer plate (28) is connected with the surface of the toothed plate (27) in a fitting way, one end of the tile-shaped buffer plate (28) is connected with the protection inner layer (2), and the other end of the tile-shaped buffer plate (28) and the protection inner layer (2) form an interval so as to be convenient for bending when the tile-shaped buffer plate (28) is deformed.

7. A multi-layered automobile bumper having an inner angle adjusting function within a prescribed range according to claim 1, wherein: the inside connecting rod (21) that are equipped with two symmetric distributions of strengthening rib (16), two connecting rod (21) all rotate with strengthening rib (16) bottom and are connected, and two connecting rod (21) other end rotate with connecting block (22) both ends respectively and are connected, connecting block (22) and connecting rod (23) surface sliding connection, connecting rod (23) cup joint with buffer spring (25) inside, connecting rod (23) are located strengthening rib (16) middle part, just connecting rod (23) extend to inside second opening (36).

8. A multi-layered automobile bumper having an inner angle adjusting function within a prescribed range according to claim 1, wherein: the novel corrugated steel plate is characterized in that a tile-shaped spring piece (26) is arranged inside the corrugated steel plate (10), two ends of the tile-shaped spring piece (26) are fixedly connected with inner walls of two sides of the corrugated steel plate (10) respectively, an attaching plate (24) with an arc-shaped structure is arranged at the top of the tile-shaped spring piece (26), and the attaching plate (24) is slidably connected with the surface of the tile-shaped spring piece (26).

9. A multi-layered automobile bumper having an inner angle adjusting function within a prescribed range according to claim 1, wherein: the reinforcing rib (16) one side is fixedly connected with two vertical plates (20) respectively, the bottoms of the vertical plates (20) are rotationally connected with an adjusting rod (33), the bottom end of the adjusting rod (33) is rotationally connected with an adjusting block (32), and the adjusting rod (33) is obliquely distributed to one side of the vertical plates (20).

10. A multi-layered automobile bumper having an inner angle adjusting function within a prescribed range according to claim 1, wherein: the groove steel plate (10) bottom fixed mounting has two fixed blocks (29), two the groove steel plate (10) both sides of fixed block (29) symmetry subsection, two fixed block (29) all rotate with screw rod (30) and are connected, screw rod (30) and regulating block (32) threaded connection, regulating block (32) are located between two fixed blocks (29), screw rod (30) one end fixedly connected with carousel (31), carousel (31) edge is equipped with evenly distributed's latch, fixed block (29) top and clamping lever (34) rotate to be connected, clamping lever (34) are the column structure of buckling, clamping lever (34) are connected with fixed block (29) lateral wall through spacing spring (35), just the inside joint of latch bottom and carousel (31).

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