CN114872653A - Bumper structure combined by negative Poisson ratio sandwich beam structure and energy absorption block - Google Patents

Bumper structure combined by negative Poisson ratio sandwich beam structure and energy absorption block Download PDF

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Publication number
CN114872653A
CN114872653A CN202210616678.7A CN202210616678A CN114872653A CN 114872653 A CN114872653 A CN 114872653A CN 202210616678 A CN202210616678 A CN 202210616678A CN 114872653 A CN114872653 A CN 114872653A
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CN
China
Prior art keywords
plate
arc
cylinder
bumper
shaped
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Withdrawn
Application number
CN202210616678.7A
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Chinese (zh)
Inventor
任俊楠
陆兆纳
查朦
钱黎明
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NANTONG INSTITUTE OF TECHNOLOGY
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NANTONG INSTITUTE OF TECHNOLOGY
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Priority to CN202210616678.7A priority Critical patent/CN114872653A/en
Publication of CN114872653A publication Critical patent/CN114872653A/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/04—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R19/32—Fluid shock absorbers, e.g. with coaxial coil springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
    • B60R19/50—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds with lights or registration plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R2019/247—Fastening of bumpers' side ends
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)

Abstract

The invention discloses a bumper structure combined by a negative Poisson ratio sandwich beam structure and an energy absorption block, belonging to the technical field of bumper structures, the edge connecting plate is fixed at the side part of the frame by penetrating through the first fixing hole by the screw rod and is fixed at the bottom end part of the frame by penetrating through the second fixing hole by the screw rod, when the bumper is impacted, the license plate clamping plate is compressed to adjust the first inner sliding cylinder to slide in the second outer sliding cylinder, the first inner sliding cylinder is used for adjusting and compressing the first inner limiting spring so as to press the hydraulic oil in the second outer sliding cylinder into the hydraulic oil diversion bin and enable the hydraulic oil to enter the limiting plate to jack up the inner lifting plate, when the first inner sliding cylinder is compressed, air in the rubber buffer cover is further compressed, so that the air enters the outer adjusting cylinder through the air duct, and the adjusting plate is adjusted to extend outwards to collide with an impactor to further form buffering.

Description

Bumper structure combined by negative Poisson's ratio sandwich beam structure and energy absorption block
Technical Field
The invention relates to a bumper structure, in particular to a bumper structure combined by a negative Poisson ratio sandwich beam structure and an energy absorption block, and belongs to the technical field of bumper structures.
Background
The bumper of the automobile is a safety device which absorbs and relaxes external impact force and protects the front part and the rear part of an automobile body, and the bumper of the automobile or a driver generates buffering when the automobile or the driver is stressed during collision.
The bumper structure in the prior art only adopts a shell structure to be fixed on a vehicle, and the structural design has the following problems:
1. the automobile bumper structure can not realize a good buffering function when being impacted, and does not realize the protection function of the top cover and the engine when buffering;
2. the side edge of the automobile bumper structure in the prior art is often a surface which is easy to be impacted, but the side edge is also a very fragile side part which is easy to dent and damage when being impacted;
3. the automobile bumper structure in the prior art cannot reversely guide the received impact force when being impacted, and only has the problems of buffering and damage caused by the impact force;
the bumper structure is designed to be combined by a negative Poisson ratio sandwich beam structure and an energy absorption block to optimize the problems.
Disclosure of Invention
The invention mainly aims to provide a bumper structure combined by a negative Poisson ratio sandwich beam structure and an energy absorption block, wherein an edge connecting plate is fixed on the side part of a frame by a screw rod penetrating through a first fixing hole and is fixed at the bottom end part of the frame by a screw rod penetrating through a second fixing hole, when the bumper is impacted, a license plate clamping plate is compressed to regulate a first inner sliding cylinder to slide in a second outer sliding cylinder, a first inner limiting spring is regulated and compressed by a first inner sliding cylinder to ensure that hydraulic oil in the second outer sliding cylinder is pressed into a hydraulic oil diversion bin and enters a limiting plate to jack up an inner lifting plate, when the first inner sliding cylinder is compressed, air in a rubber buffer cover is further compressed to ensure that the air enters an outer regulating cylinder through an air guide tube, and a regulating plate is regulated to extend outwards to collide with an impacting object to further form buffer, get into in limiting plate and the hydraulic oil water conservancy diversion storehouse back through constituting a set of protection wall with interior lifter plate top and carry out further protection to accessories such as engine, the bumper body receives when the striking S type elasticity fastener of synchronous cooperation constitutes the buffering protection in the bottom, then adjust the regulating block and slide adjusting in the inboard of arc slide rail when the side arc is struck, then adjust outer regulating spring through the articulated elastic plate of regulating block compression side, interior arc pole and outer arc section of thick bamboo constitute the lateral part buffering, spacing spring is adjusted to cooperate side arc buffering offside arc plate to cooperate in the compression second when the side arc receives the striking in the compression second.
The purpose of the invention can be achieved by adopting the following technical scheme:
a bumper structure combined by a negative Poisson ratio sandwich beam structure and an energy absorption block comprises a bumper body, wherein first buffer cylinder assemblies are arranged on the front of the bumper body at equal intervals, a license plate clamping plate is arranged at the outer end part of each first buffer cylinder assembly, a rubber buffer cover is connected to the outer side part of each license plate clamping plate, the outer end part of each rubber buffer cover is connected with the front of the bumper body, a sealed space is formed by the bumper body, the license plate clamping plate and the rubber buffer covers, a passive buffer cylinder assembly is arranged at the bottom of the bumper body and is communicated with the inside of the rubber buffer cover through an air duct, a jacking cylinder descending assembly communicated with the first buffer cylinder assemblies is arranged at the top of the inner side of the bumper body, side arc-shaped plates are integrally formed on the two sides of the bumper body, and arc-shaped steel bar framework assemblies are arranged at the top and the bottom of the inner side arc-shaped plates, the inboard of this arc framework of steel reinforcement subassembly is equipped with can the inboard gliding articulated sliding plate subassembly of linkage of arc framework of steel reinforcement subassembly, and the tip of the articulated sliding plate subassembly of this linkage articulates there is the fixed plate subassembly, and the department installs the second buffer section of thick bamboo subassembly in the front of fixed plate subassembly, be equipped with arc buffer section of thick bamboo subassembly between fixed plate subassembly and the articulated sliding plate subassembly of linkage, the equidistant S type elasticity fastener subassembly of installing in the bottom of bumper body.
Preferably, first buffer cylinder subassembly includes the outer slide cartridge of second, first interior spacing spring, first interior slide cartridge, hydraulic oil and leads oil pipe, the outer slide cartridge of second is installed to the outside top department of bumper body equidistant, the interior tip department of the outer slide cartridge of second installs first interior spacing spring, first interior slide cartridge is installed to the other end of first interior spacing spring, the inside of the outer slide cartridge of second embeds there is hydraulic oil, the bottom intercommunication of the outer slide cartridge of second has leads oil pipe, license plate cardboard is installed to the outer tip department of first interior slide cartridge.
Preferably, passive buffer cylinder subassembly includes an outer adjusting cylinder and buffering adjusting plate, the positive bottom department of bumper body installs an outer adjusting cylinder, just the inside of an outer adjusting cylinder is built-in to have can the inside gliding buffering adjusting plate of an outer adjusting cylinder, an outer adjusting cylinder passes through air duct and rubber buffering cover intercommunication.
Preferably, jacking falling barrel subassembly includes hydraulic oil water conservancy diversion storehouse, limiting plate and interior lifter plate, the back top department of bumper body installs hydraulic oil water conservancy diversion storehouse, just hydraulic oil water conservancy diversion storehouse with lead oil pipe intercommunication, the limiting plate is installed at the top in hydraulic oil water conservancy diversion storehouse, just hydraulic oil water conservancy diversion storehouse with the limiting plate intercommunication, the interior lifter plate has been inserted at the interior top of limiting plate, just interior lifter plate partially runs through the limiting plate.
Preferably, the arc framework of steel reinforcement subassembly includes arc slide rail and interior arc pole, the arc slide rail is installed to an inboard top bottom department of side arc, the inboard edge of arc slide rail install interior arc pole on the arc slide rail is horizontal, and the outside cover of arc pole is equipped with the articulated slide plate subassembly of linkage in this.
Preferably, the linkage hinge-joint sliding plate component comprises a side hinge-joint elastic plate, an adjusting slider and a linkage hinge rod, the adjusting slider is sleeved on the outer side of the inner arc-shaped rod, the outer side of the adjusting slider is hinged with the side hinge-joint elastic plate through the linkage hinge rod, and the end part of the side hinge-joint elastic plate is hinged with the fixed plate component through a spring.
Preferably, the fixed plate assembly comprises an edge connecting plate and a fixed hole, the end part of the side hinged elastic plate is hinged to the edge connecting plate through a clockwork spring, and first fixed holes are formed in four corners of the edge connecting plate.
Preferably, the second buffer cylinder assembly comprises a second outer sliding cylinder, a second inner sliding cylinder and a second inner limiting spring, the second outer sliding cylinder is installed in the middle of the front face of the edge connecting plate, the second inner limiting spring is installed at the inner end of the second outer sliding cylinder, the second inner sliding cylinder is installed at the other end of the second inner limiting spring, and the second inner sliding cylinder is matched with the side arc-shaped plate.
Preferably, the arc buffer beam subassembly includes interior arc pole, outer regulating spring and an outer arc section of thick bamboo, the positive both sides department of limit portion connecting plate all installs interior arc pole, the inboard middle part department of side arc installs an outer arc section of thick bamboo, interior arc pole portion insert extremely the inboard of an outer arc section of thick bamboo, the outside cover of interior arc pole is equipped with outer regulating spring, the outside contact of outer regulating spring part and an outer arc section of thick bamboo.
Preferably, the S-shaped elastic clamping piece assembly comprises S-shaped elastic clamping pieces and fixing holes, the S-shaped elastic clamping pieces are installed at equal intervals at the bottom of the bumper body, and second fixing holes are formed in the end portions of the S-shaped elastic clamping pieces.
Preferably, the bumper structure further includes a buffering method of:
the method comprises the following steps: the screw penetrates through the first fixing hole to fix the edge connecting plate on the side part of the frame, and penetrates through the second fixing hole to be fixed at the bottom end part of the frame;
step two: when the bumper is impacted, the license plate clamping plate is compressed to adjust the first inner sliding cylinder to slide in the second outer sliding cylinder;
step three: the first inner limiting spring is regulated and compressed through the first inner sliding cylinder, so that hydraulic oil in the second outer sliding cylinder is pressed into the hydraulic oil diversion bin and enters the limiting plate to jack up the inner lifting plate;
step four: when the first inner sliding cylinder is compressed, air in the rubber buffer cover is further compressed, so that the air enters the outer adjusting cylinder through the air guide pipe, and the buffer adjusting plate is adjusted to extend outwards to collide with an impactor so as to further form buffer;
step five: after the hydraulic oil enters the limiting plate and the hydraulic oil diversion bin, the top of the inner lifting plate forms a group of protection walls to further protect accessories such as an engine and the like;
step six: when the bumper body is impacted, the S-shaped elastic clamping piece is synchronously matched to form buffer protection at the bottom;
step seven: when the side arc-shaped plate is impacted, the adjusting slide block is adjusted to slide and adjust on the inner side of the arc-shaped sliding rail, and then the outer adjusting spring, the inner arc-shaped rod and the outer arc-shaped cylinder are adjusted to form side buffering by hinging the elastic plate on the compression side of the adjusting slide block;
step eight: when the side arc-shaped plate is impacted, the inner sliding barrel in the second is compressed at the same time, the inner limiting spring in the second is adjusted and compressed, and the side arc-shaped plate is buffered and protected against the side arc-shaped plate structure.
The invention has the beneficial technical effects that:
the invention provides a bumper structure combining a negative Poisson ratio sandwich beam structure and an energy absorption block, wherein a screw penetrates through a first fixing hole to fix an edge connecting plate on the side part of a frame, and penetrates through a second fixing hole to be fixed at the bottom end part of the frame, when a bumper is impacted, a license plate clamping plate is compressed to regulate a first inner sliding cylinder to slide in a second outer sliding cylinder, a first inner limiting spring is regulated and compressed by a first inner sliding cylinder to further press hydraulic oil in the second outer sliding cylinder into a hydraulic oil diversion cabin, the hydraulic oil enters a limiting plate to jack up an inner lifting plate, when the first inner sliding cylinder is compressed, air in a rubber buffer cover is further compressed to enable the air to enter the outer regulating cylinder through an air guide pipe, a buffer regulating plate is regulated to extend outwards to collide with an impacting object to further form buffer, and after the hydraulic oil enters the limiting plate and the hydraulic oil, the top of the inner lifting diversion cabin forms a group of protection walls to the top of the inner lifting plate Accessories such as engine carry out further protection, synchronous cooperation S type elasticity fastener constitutes the buffering protection in the bottom when the bumper body receives the striking, then adjust the adjusting part and slide adjusting in the inboard of arc slide rail when the side arc is struck, then adjust outer adjusting spring through the articulated elastic plate of adjusting part compression side, interior arc pole and outer arc section of thick bamboo constitute the lateral part buffering, spacing spring carries out cooperation side arc buffering and protects side arc plate structure in compressing the second simultaneously and adjusts compression second in the second when the side arc receives the striking.
Drawings
FIG. 1 is a schematic view of an overall first perspective construction of an apparatus according to a preferred embodiment of a bumper structure incorporating a negative Poisson's ratio sandwich beam structure and energy absorbing blocks in accordance with the present invention;
FIG. 2 is a schematic overall second perspective view of an arrangement according to a preferred embodiment of the bumper structure of the present invention comprising a negative Poisson's ratio sandwich beam structure and energy absorbing blocks;
FIG. 3 is a schematic third perspective view of the overall structure of the device according to a preferred embodiment of the bumper structure of the present invention comprising a negative Poisson's ratio sandwich beam structure and energy absorbing blocks;
FIG. 4 is a schematic view of an overall fourth perspective view of an apparatus according to a preferred embodiment of the bumper structure of the present invention comprising a negative Poisson's ratio sandwich beam structure and energy absorbing blocks;
FIG. 5 is a first perspective isometric view of a side curved frame assembly of a preferred embodiment of a bumper structure having a negative Poisson's ratio sandwich beam structure and energy absorbing blocks in combination in accordance with the present invention;
FIG. 6 is a second perspective isometric view of a side arch frame assembly of a preferred embodiment of a bumper structure having a negative Poisson's ratio sandwich beam structure and energy absorbing blocks in combination in accordance with the present invention;
FIG. 7 is a side cross-sectional view of a bumper structure bumper assembly of a preferred embodiment of a bumper structure having a negative Poisson's ratio sandwich beam structure and energy absorbing blocks in combination in accordance with the present invention;
FIG. 8 is a top view of a bumper structure side bumper assembly of a preferred embodiment of a bumper structure having a negative Poisson's ratio sandwich beam structure and energy absorbing blocks in combination according to the present invention.
In the figure: 1-a bumper body, 2-a license plate clamping plate, 3-a rubber buffer cover, 4-an inner lifting plate, 5-a side arc plate, 6-an S-shaped elastic clamping piece, 8-a buffer adjusting plate, 9-an outer adjusting cylinder, 10-a limiting plate, 11-a hydraulic oil diversion bin, 12-an edge connecting plate, 13-a side hinged elastic plate, 14-an arc sliding rail, 15-an adjusting slider, 16-a first inner sliding cylinder, 17-a first outer sliding cylinder, 18-a second inner sliding cylinder, 19-a second outer sliding cylinder, 20-a first inner limiting spring, 21-an oil guide pipe, 22-hydraulic oil, 23-an air guide pipe, 24-a second inner limiting spring, 25-an outer adjusting spring, 26-an outer arc cylinder and 27-an inner arc rod.
Detailed Description
In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail below with reference to the examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-8, the bumper structure composed of a sandwich beam structure with a negative poisson's ratio and an energy absorption block provided in this embodiment comprises a bumper body 1, first buffer cylinder assemblies are mounted on the front surface of the bumper body 1 at equal intervals, a license plate card 2 is mounted at the outer end of the first buffer cylinder assembly, a rubber buffer cover 3 is connected at the outer side edge of the license plate card 2, the outer end of the rubber buffer cover 3 is connected with the front surface of the bumper body 1, a sealed space is formed by the bumper body 1, the license plate card 2 and the rubber buffer cover 3, a passive buffer cylinder assembly is arranged at the bottom of the bumper body 1, the passive buffer cylinder assembly is communicated with the inside of the rubber buffer cover 3 through an air duct 23, a descending cylinder assembly communicated with the first buffer cylinder assembly is arranged at the top of the inner side of the bumper body 1, side jacking plates 5 are integrally formed at both sides of the bumper body 1, the arc steel bar framework assembly is installed at the top and the bottom of the inner side of the side arc-shaped plate 5, the inner side of the arc steel bar framework assembly is provided with a linkage hinged sliding plate assembly capable of sliding in the inner side of the arc steel bar framework assembly, the end portion of the linkage hinged sliding plate assembly is hinged with a fixed plate assembly, a second buffer cylinder assembly is installed in the front of the fixed plate assembly, an arc buffer rod assembly is arranged between the fixed plate assembly and the linkage hinged sliding plate assembly, and S-shaped elastic clamping part assemblies are installed at equal intervals at the bottom of the bumper body 1.
The edge connecting plates 12 are fixed on the side parts of the frame by penetrating through the first fixing holes through screws, and are fixed at the bottom end parts of the frame by penetrating through the second fixing holes through screws, when a bumper is impacted, the license plate clamping plate 2 is compressed to adjust the first inner sliding cylinder 16 to slide in the second outer sliding cylinder 17, the first inner sliding cylinder 16 is adjusted to compress the first inner limiting spring 20 so as to press the hydraulic oil 22 in the second outer sliding cylinder 17 into the hydraulic oil diversion bin 11 and enable the hydraulic oil to enter the limiting plate 10 to jack up the inner lifting plate 4, when the first inner sliding cylinder 16 is compressed, the air in the rubber buffer cover 3 is further compressed, the air enters the outer adjusting cylinder 9 through the air guide pipe 23, the buffer adjusting plate 8 is adjusted to extend outwards to collide with an impacting object to further form buffer, and after the hydraulic oil 22 enters the limiting plate 10 and the hydraulic oil diversion bin 11, the top of the inner lifting plate 4 forms a group of protective walls to further protect accessories such as an engine Protection, synchronous cooperation S type elasticity fastener 6 constitutes the buffering protection in the bottom when bumper body 1 receives the striking, then adjust adjusting block 15 and slide adjusting in arc slide rail 14' S inboard when side arc 5 is struck, then adjust outer adjusting spring 25 through adjusting the articulated elastic plate 13 of adjusting block 15 compression side, interior arc pole 27 and outer arc section of thick bamboo 26 constitute the lateral part buffering, compress the interior slide cylinder 18 of second simultaneously and adjust compression second when side arc 5 receives the striking in spacing spring 24 and cooperate side arc 5 buffering side arc 5 structure to protect.
In this embodiment, the first buffer cylinder assembly includes the second outer slide cylinder 17, first interior spacing spring 20, first interior slide cylinder 16, hydraulic oil 22 and oil guide pipe 21, the second outer slide cylinder 17 is installed to the outside top department of bumper body 1 equidistant, first interior spacing spring 20 is installed to the interior tip department of the second outer slide cylinder 17, first interior slide cylinder 16 is installed to the other end of first interior spacing spring 20, the inside of the second outer slide cylinder 17 embeds there is hydraulic oil 22, the bottom intercommunication of the second outer slide cylinder 17 has oil guide pipe 21, license plate cardboard 2 is installed to the outer tip department of first interior slide cylinder 16.
In this embodiment, passive buffer cylinder subassembly includes an outer adjusting cylinder 9 and a buffering adjusting plate 8, and an outer adjusting cylinder 9 is installed to the positive bottom department of bumper body 1, and the inside of an outer adjusting cylinder 9 embeds there is a gliding buffering adjusting plate 8 that can adjust a cylinder 9 inside outside, and an outer adjusting cylinder 9 passes through air duct 23 and rubber buffering cover 3 intercommunication.
In this embodiment, jacking falling cylinder subassembly includes hydraulic oil water conservancy diversion storehouse 11, limiting plate 10 and interior lifter plate 4, and hydraulic oil water conservancy diversion storehouse 11 is installed to the back top department of bumper body 1, and hydraulic oil water conservancy diversion storehouse 11 and lead oil pipe 21 intercommunication, and limiting plate 10 is installed at the top in hydraulic oil water conservancy diversion storehouse 11, and hydraulic oil water conservancy diversion storehouse 11 and limiting plate 10 intercommunication, and interior lifter plate 4 has been inserted at the interior top of limiting plate 10, and interior lifter plate 4 part runs through limiting plate 10.
In this embodiment, arc framework of steel reinforcement subassembly includes arc slide rail 14 and interior arc pole, and arc slide rail 14 is installed to one bottom department in the inboard top of side arc 5, and arc slide rail 14's inboard is installed interior arc pole on the arc slide rail 14 is horizontal along arc slide rail 14, and the outside cover of arc pole is equipped with the articulated sliding plate subassembly of linkage in this.
In this embodiment, the linkage hinge sliding plate assembly comprises a side hinge elastic plate 13, an adjusting slider 15 and a linkage hinge rod, the adjusting slider 15 is sleeved on the outer side of the inner arc rod, the outer side of the adjusting slider 15 is hinged with the side hinge elastic plate 13 through the linkage hinge rod, and the end part of the side hinge elastic plate 13 is hinged with the fixed plate assembly through a spring.
In this embodiment, the fixing plate assembly includes an edge connecting plate 12 and a fixing hole, the end of the side hinge elastic plate 13 is hinged to the edge connecting plate 12 through a spring, and first fixing holes are formed at four corners of the edge connecting plate 12.
In this embodiment, the second buffer cylinder assembly includes a second outer sliding cylinder 19, a second inner sliding cylinder 18 and a second inner limiting spring 24, the second outer sliding cylinder 19 is installed at the middle of the front surface of the edge connecting plate 12, the second inner limiting spring 24 is installed at the inner end of the second outer sliding cylinder 19, the second inner sliding cylinder 18 is installed at the other end of the second inner limiting spring 24, and the second inner sliding cylinder 18 is matched with the side arc-shaped plate 5.
In this embodiment, arc buffer beam subassembly includes interior arc pole 27, outer regulating spring 25 and an outer arc section of thick bamboo 26, and interior arc pole 27 is all installed in the positive both sides department of limit portion connecting plate 12, and outer arc section of thick bamboo 26 is installed in the inboard middle part department of side arc 5, and interior arc pole 27 part inserts the inboard to an outer arc section of thick bamboo 26, and the outside cover of interior arc pole 27 is equipped with outer regulating spring 25, the outside contact of outer regulating spring 25 part and an outer arc section of thick bamboo 26.
In this embodiment, S type elasticity fastener subassembly includes S type elasticity fastener 6 and fixed orifices, and S type elasticity fastener 6 has been installed to the equidistant bottom of bumper body 1, and the second fixed orifices has been seted up to the tip of S type elasticity fastener 6.
In this embodiment, the bumper structure further includes a buffering method of:
the method comprises the following steps: the edge connecting plate 12 is fixed on the side part of the frame by penetrating through the first fixing hole by a screw rod, and is fixed at the bottom end part of the frame by penetrating through the second fixing hole by the screw rod;
step two: when the bumper is impacted, the license plate clamping plate 2 is compressed to adjust the first inner sliding cylinder 16 to slide in the second outer sliding cylinder 17;
step three: the first inner sliding cylinder 16 is used for adjusting and compressing the first inner limiting spring 20 so as to press the hydraulic oil 22 in the second outer sliding cylinder 17 into the hydraulic oil diversion cabin 11, and the hydraulic oil enters the limiting plate 10 to jack up the inner lifting plate 4;
step four: when the first inner sliding cylinder 16 is compressed, the air in the rubber buffer cover 3 is further compressed, so that the air enters the outer adjusting cylinder 9 through the air duct 23, and the buffer adjusting plate 8 is adjusted to extend outwards to collide with an impacting object to further form buffer;
step five: after the hydraulic oil 22 enters the limiting plate 10 and the hydraulic oil diversion cabin 11, the top of the inner lifting plate 4 forms a group of protection walls to further protect accessories such as an engine and the like;
step six: when the bumper body 1 is impacted, the S-shaped elastic clamping pieces 6 are synchronously matched to form buffer protection at the bottom;
step seven: when the side arc-shaped plate 5 is impacted, the adjusting slide block 15 is adjusted to slide on the inner side of the arc-shaped slide rail 14, and then the adjusting slide block 15 compresses the side hinged elastic plate 13 to adjust the outer adjusting spring 25, the inner arc-shaped rod 27 and the outer arc-shaped cylinder 26 to form side buffering;
step eight: when the side arc-shaped plate 5 is impacted, the second inner sliding cylinder 18 is compressed at the same time to adjust and compress the second inner limiting spring 24 to match with the buffer of the side arc-shaped plate 5 to protect the structure of the side arc-shaped plate 5.
The above are only further embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and its concept within the scope of the present invention.

Claims (10)

1. A bumper structure combined by a negative Poisson ratio sandwich beam structure and an energy absorption block is characterized in that: comprises a bumper body (1), first buffer cylinder assemblies are arranged on the front face of the bumper body (1) at equal intervals, a license plate clamping plate (2) is arranged at the outer end part of the first buffer cylinder assembly, a rubber buffer cover (3) is connected at the outer side edge part of the license plate clamping plate (2), the outer end part of the rubber buffer cover (3) is connected with the front face of the bumper body (1) and a sealing space is formed by the bumper body (1), the license plate clamping plate (2) and the rubber buffer cover (3), a passive buffer cylinder assembly is arranged at the bottom of the bumper body (1) and is communicated with the inside of the rubber buffer cover (3) through an air duct (23), a jacking cylinder assembly communicated with the first buffer cylinder assembly is arranged at the top part of the inner side of the bumper body (1), side arc plates (5) are integrally formed at two sides of the bumper body (1), the arc-shaped steel bar framework assembly is installed at the top and the bottom of the inner side of the side arc-shaped plate (5), the inner side of the arc-shaped steel bar framework assembly is provided with a linkage hinged sliding plate assembly capable of sliding in the inner side of the arc-shaped steel bar framework assembly, the end portion of the linkage hinged sliding plate assembly is hinged to a fixed plate assembly, a second buffer cylinder assembly is installed in the front of the fixed plate assembly, an arc-shaped buffer rod assembly is arranged between the fixed plate assembly and the linkage hinged sliding plate assembly, and S-shaped elastic clamping piece assemblies are installed at equal intervals at the bottom of the bumper body (1).
2. The bumper structure of claim 1, wherein the bumper structure is a combination of a negative poisson's ratio sandwich beam structure and an energy absorbing block, and wherein: first buffer cylinder subassembly includes the outer slide cartridge of second (17), first interior spacing spring (20), first interior slide cartridge (16), hydraulic oil (22) and leads oil pipe (21), the outer slide cartridge of second (17) is installed to the outside top department of bumper body (1) equidistant, the end department installs first interior spacing spring (20) in the interior of the outer slide cartridge of second (17), first interior slide cartridge (16) is installed to the other end of first interior spacing spring (20), the inside of the outer slide cartridge of second (17) embeds there is hydraulic oil (22), the bottom intercommunication of the outer slide cartridge of second (17) has leads oil pipe (21), license plate cardboard (2) are installed to the outer tip department of first interior slide cartridge (16).
3. The bumper structure of claim 2, wherein the bumper structure is a combination of a negative poisson's ratio sandwich beam structure and an energy absorbing block, and wherein: passive buffer cylinder subassembly includes an outer adjusting cylinder (9) and buffering adjusting plate (8), the positive bottom department of bumper body (1) installs an outer adjusting cylinder (9), just the inside of an outer adjusting cylinder (9) is built-in to have can outer adjusting cylinder (9) inside gliding buffering adjusting plate (8), outer adjusting cylinder (9) are through air duct (23) and rubber buffering cover (3) intercommunication.
4. The bumper structure of claim 3, wherein the bumper structure is a combination of a negative poisson's ratio sandwich beam structure and an energy absorbing block, and wherein: jacking falls a subassembly and includes hydraulic oil water conservancy diversion storehouse (11), limiting plate (10) and interior lifter plate (4), the back top department of bumper body (1) installs hydraulic oil water conservancy diversion storehouse (11), just hydraulic oil water conservancy diversion storehouse (11) with lead oil pipe (21) intercommunication, limiting plate (10) are installed at the top in hydraulic oil water conservancy diversion storehouse (11), just hydraulic oil water conservancy diversion storehouse (11) with limiting plate (10) intercommunication, lifter plate (4) in having inserted at the interior top of limiting plate (10), just interior lifter plate (4) part runs through limiting plate (10).
5. The bumper structure of claim 4, wherein the bumper structure is a combination of a negative poisson's ratio sandwich beam structure and an energy absorbing block, and wherein: arc framework of steel reinforcement subassembly includes arc slide rail (14) and interior arc pole, arc slide rail (14) are installed to an inboard top bottom department of side arc (5), the inboard edge of arc slide rail (14) is horizontal installs interior arc pole, and the outside cover of arc pole is equipped with the articulated sliding plate subassembly of linkage in this.
6. The bumper structure of claim 5, wherein the bumper structure is a combination of a negative poisson's ratio sandwich beam structure and an energy absorbing block, and wherein: the linkage hinged sliding plate component comprises a side hinged elastic plate (13), an adjusting sliding block (15) and a linkage hinged rod, the adjusting sliding block (15) is sleeved on the outer side of the inner arc-shaped rod, the outer side of the adjusting sliding block (15) is hinged to the side hinged elastic plate (13) through the linkage hinged rod, and the end of the side hinged elastic plate (13) is hinged to the fixed plate component through a spring.
7. The bumper structure of claim 6, wherein the bumper structure is a combination of a negative poisson's ratio sandwich beam structure and an energy absorbing block, and wherein: the fixed plate component comprises an edge connecting plate (12) and a fixed hole, the end part of the side hinged elastic plate (13) is hinged to the edge connecting plate (12) through a clockwork spring, and first fixed holes are formed in four corners of the edge connecting plate (12).
8. The bumper structure of claim 7, wherein the bumper structure is a combination of a negative poisson's ratio sandwich beam structure and an energy absorbing block, and wherein: the second buffer cylinder assembly comprises a second outer sliding cylinder (19), a second inner sliding cylinder (18) and a second inner limiting spring (24), the second outer sliding cylinder (19) is installed in the middle of the front face of the edge connecting plate (12), the second inner limiting spring (24) is installed at the inner end of the second outer sliding cylinder (19), the second inner sliding cylinder (18) is installed at the other end of the second inner limiting spring (24), and the second inner sliding cylinder (18) and the side arc-shaped plate (5) are matched with each other.
9. The bumper structure formed by combining the negative poisson's ratio sandwich beam structure and the energy absorption block according to claim 8, wherein: the arc-shaped buffer rod assembly comprises inner arc-shaped rods (27), outer adjusting springs (25) and outer arc-shaped cylinders (26), the inner arc-shaped rods (27) are mounted at two sides of the front side of the side portion connecting plate (12), the outer arc-shaped cylinders (26) are mounted in the middle of the inner sides of the side arc-shaped plates (5), the inner arc-shaped rods (27) are partially inserted into the inner sides of the outer arc-shaped cylinders (26), the outer adjusting springs (25) are sleeved on the outer sides of the inner arc-shaped rods (27), and the outer adjusting springs (25) are partially contacted with the outer sides of the outer arc-shaped cylinders (26); the S-shaped elastic clamping piece assembly comprises S-shaped elastic clamping pieces (6) and fixing holes, the S-shaped elastic clamping pieces (6) are installed at equal intervals at the bottom of the bumper body (1), and second fixing holes are formed in the end portions of the S-shaped elastic clamping pieces (6).
10. The bumper structure of claim 9, wherein the bumper structure is a combination of a negative poisson's ratio sandwich beam structure and an energy absorbing block, and wherein: the bumper structure further comprises the following buffering method:
the method comprises the following steps: the edge connecting plate (12) is fixed on the side part of the frame by penetrating through the first fixing hole through a screw rod, and is fixed at the bottom end part of the frame by penetrating through the second fixing hole through the screw rod;
step two: when the bumper is impacted, the license plate clamping plate (2) is compressed to adjust the first inner sliding cylinder (16) to slide in the second outer sliding cylinder (17);
step three: the first inner limiting spring (20) is regulated and compressed through the first inner sliding cylinder (16), so that hydraulic oil (22) in the second outer sliding cylinder (17) is pressed into the hydraulic oil diversion bin (11) and enters the limiting plate (10) to jack up the inner lifting plate (4);
step four: when the first inner sliding cylinder (16) is compressed, air in the rubber buffer cover (3) is further compressed, so that the air enters the outer adjusting cylinder (9) through the air duct (23), and the buffer adjusting plate (8) is adjusted to extend outwards to collide with an impacting object to further form buffer;
step five: after the hydraulic oil (22) enters the limiting plate (10) and the hydraulic oil diversion bin (11), a group of protection walls are formed at the top of the inner lifting plate (4) to further protect accessories such as an engine;
step six: when the bumper body (1) is impacted, the S-shaped elastic clamping piece (6) is synchronously matched to form buffer protection at the bottom;
step seven: when the side arc-shaped plate (5) is impacted, the adjusting slide block (15) is adjusted to slide on the inner side of the arc-shaped slide rail (14), and then the adjusting slide block (15) compresses the side hinged elastic plate (13) to adjust the outer adjusting spring (25), the inner arc-shaped rod (27) and the outer arc-shaped cylinder (26) to form side buffering;
step eight: when the side arc-shaped plate (5) is impacted, the second inner sliding cylinder (18) is compressed at the same time, the second inner limiting spring (24) is adjusted and compressed to match with the buffer of the side arc-shaped plate (5) to protect the structure of the side arc-shaped plate (5).
CN202210616678.7A 2022-06-01 2022-06-01 Bumper structure combined by negative Poisson ratio sandwich beam structure and energy absorption block Withdrawn CN114872653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210616678.7A CN114872653A (en) 2022-06-01 2022-06-01 Bumper structure combined by negative Poisson ratio sandwich beam structure and energy absorption block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210616678.7A CN114872653A (en) 2022-06-01 2022-06-01 Bumper structure combined by negative Poisson ratio sandwich beam structure and energy absorption block

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CN114872653A true CN114872653A (en) 2022-08-09

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CN202210616678.7A Withdrawn CN114872653A (en) 2022-06-01 2022-06-01 Bumper structure combined by negative Poisson ratio sandwich beam structure and energy absorption block

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Application publication date: 20220809