CN209673377U - A kind of pedestrian impact's test-bed towards accident reconstruction - Google Patents
A kind of pedestrian impact's test-bed towards accident reconstruction Download PDFInfo
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- CN209673377U CN209673377U CN201920774735.8U CN201920774735U CN209673377U CN 209673377 U CN209673377 U CN 209673377U CN 201920774735 U CN201920774735 U CN 201920774735U CN 209673377 U CN209673377 U CN 209673377U
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Abstract
The utility model discloses a kind of pedestrian impact's test-bed towards accident reconstruction, the utility model is based on the quantitative test in pedestrian's collision event, i.e. windshield glass test is collided on the test of impact on lower legs front bumper and head, for the bumper and windshield of a certain specific model, comprehensive clamping device is intended to provide it to be fixed, to reduce bump test difficulty, experimentation cost is reduced.Since windshield glass shape and structure is complicated, fixed difficulty is larger, and a kind of new approaches of fixed windshield glass can also be provided in the utility model.
Description
Technical field
The utility model belongs to safety test technical field more particularly to a kind of pedestrian impact's test towards accident reconstruction
Rack.
Background technique
With advances in technology with the raising of social development levels, automobile obtains as comfortable efficiently trip mode
It is a large amount of universal.It is adjoint with automobile industry rapid growth and row to also include the continuous increasing of traffic accident quantity and frequency naturally
Add.Wherein in the collision case of vehicle and pedestrian, weak tendency user of the pedestrian as means of transportation, the maintenance of safety and equity
Need strong technical guarantee.
It is shown according to statistical data in 2016, the death toll and number of injured people of China's pedestrian traffic mode are respectively
16724 people and 37282 people account for about 26.51% and 16.46% of the dead's sum in traffic accident.Traffic collides thing
Therefore the big form still occurred for traffic accident.In the case of vehicle crash pedestrian, almost all of collision occurs on head
The impact of impact and leg to front bumper to windshield glass.Therefore vehicle is rushed based on the impact test of pedestrian protecting
The case reduction, injury estimation and merit for hitting pedestrian's case are defined and are of great significance.
Impact test based on pedestrian protecting include head to the impact test of windshield glass and leg to front bumper
Impact test.In this course, the complexity and diversity of the geometry of windshield are typically due to, it is often necessary to use
Windshield is fixed to former vehicle body, makes the higher cost of impact test.Therefore use can be arrived to windshield and guarantor
The test-bed that dangerous thick stick is fixed simultaneously, by the program for significantly simplifying impact test, reduces its cost.Its act on include first is that
It does not need to save experimentation cost using former vehicle body, second is that glass and bumper can be replaced, in more number quick and easyly
It is particularly critical when test, third is that corresponding quantitative test can be carried out after stress state completely on simulating vehicle.
The impact test rack of the prior art specifically includes that rack base, support arm, bezel and glass installation support
Plate, wherein support arm is located at two sides above rack base, and lower part is connected by adjusting bolt with rack base, and top passes through hinge
It connects and is connected with bezel；Bezel is embedded in the axis hole opened up in rack base by circular shaft and is connected with rack base, described
Circular shaft rotates in the axis hole, and the rotational angle of bezel is adjusted in conjunction with the adjusting bolt；Glass installs support plate two
End can slide axially in the axial T-slot that bezel two sides open up along the axial T-slot, and windshield is fixed
In glass installation support plate, the bezel offers multiple threaded holes in the up-down direction, adjusts bolt using radian
It is screwed into the threaded hole that bezel opens up, to jack up glass installation support plate.
The technology can substantially meet the qualitative test requirement of head mold impact windshield, but have the following deficiencies:
First is that rack intensity is difficult to ensure.Glass installation support plate relies on merely rear vertical bar to carry out cantilevered support,
Slosh can be generated when being impacted by high speed head mold even to collide with front pedestal.
Second is that angle design for change redundancy.Many threaded holes are equipped in glass installation support plate rear vertical bar, can be passed through
Respectively using the fixed angle tilt for realizing that windshield is different of different threaded holes.But the pedestrian head current according to regulation
Transmitting station has realized the variation of the three-dimensional coordinate in larger range and -90 ° -90 ° of continuous angle change.The angle of rack changes
Design is not only not necessarily to, and so that punching rear bar stress concentration, intensity decline is occurred, and cause installation procedure cumbersome.
Third is that fixed form defect.According to the narration of the technology, windshield needs to be fixed on above-mentioned glass support frame
On frame.But the windshield different for moulding, bond area greatly reduce, and many variations also occur for the intensity cemented.In this way
Bonding result large error even will also result in qualitative test.
Fourth is that mounting means defect.Since glass is detachably to install, glass installation bearing is such as fixed on by adhesive
Mounting means on frame seems extremely inconvenient when needing to replace glass repeatedly.Installation process needs that adhesive is waited to air-dry,
Disassembly process needs to dispose remaining adhesive and glass residue on frame.In preliminary qualitative test this measure seem compared with
For cumbersome redundancy.
Utility model content
The purpose of this utility model is that: the utility model is based on the quantitative test in pedestrian's collision event, i.e. leg
It impacts front bumper test and windshield glass test is collided on head, for the bumper and windshield of a certain specific model,
Comprehensive clamping device is intended to provide it to be fixed, to reduce bump test difficulty, reduces experimentation cost, especially
For to windshield without mold but need to carry out quantitative test when can provide feasible scheme.
The technical solution adopted in the utility model is as follows:
A kind of pedestrian impact's test-bed towards accident reconstruction, including rack base, frame shape support frame and windshield
Face profile frame, rack base are fixedly connected by frame shape support frame with windshield face profile frame bottom end, and windshield is flat
Facial contour frame is obliquely installed, and clamps support rod and the fixed company of frame shape support frame by glass above windshield face profile frame
It connects, insertion is equipped with glass in windshield face profile frame, and windshield face profile frame both ends are provided with multiple for pressing from both sides
The glass clamping device of glass is held, bumper fixed device in front is provided in front of frame shape support frame, frame shape support frame two sides are set
It is equipped with the fixed device of side bumper.
Further, bumper fixed device in front is fixedly connected with the fixed device of side bumper and front bumper is solid
Determine device to be fixedly connected with frame shape support frame respectively with the fixed device of side bumper.
Further, bumper fixed device in front includes 5 supporting rods and is fixedly connected just with supporting rod
Face fixinig plate.
Further, bumper fixed device in side includes the side fixinig plate being fixedly connected on frame shape support frame.
Further, side fixinig plate is fixedly connected with front fixinig plate.
Further, glass clamping device include fixing seat, the first revolute pair, the second revolute pair, third revolute pair and
It is fixedly connected on the clamping arm head of the second revolute pair end.
Further, fixing seat is connected with the first revolute pair, the second revolute pair, third revolute pair by bolt activity respectively
It connects, third revolute pair is flexibly connected with the first revolute pair and the second revolute pair by bolt respectively.
Further, clamping arm head includes the bolt that end has rubber cap, and bolt activity passes through the second revolute pair.
Further, the first revolute pair end is provided with handle.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
1, in the utility model, it is only necessary to which plane projection and bumper position of mounting hole to glass are measured, then
Edge is filled with glass glue after glass specimen is put into windshield face profile frame, and a front surface and a side surface is insured
The mounting hole of thick stick is successively fixed with frame shape support frame, can be played simplified same type gantry designs content and especially be eliminated fixation
The effect of the design work of glass outer profile with composite curvature, installation is simple, and fixed rack installation strength is high, and it is fixed to be suitable for
Amount test；
2, the present invention integrates windshield fixation and bumper fixation, passes through the windshield plane of fixed setting
Profile frame carries out quantitative bump test to head model, is head by the time that glass clamps mechanisms influence glass stress point
After model collision glass, when glass rebound touches pressing device, therefore the collision result of central point is not impacted, passed through
The fixed device of front bumper and the fixed device of side bumper are set, quantitative bump test can be carried out to leg model, thus,
The test that head model and leg model collide can be completed using single rack, is realized to typical pedestrian by vehicle just
Scene when face is collided is simulated, and be can avoid using multiple racks or is used used car predecessor, can play short form test, reduce
The effect of experimentation cost；
3, the utility model take with the consistent fixed design of real vehicle, the fixing means of glass before the collision be four sides
Adhesive is fixed as the fixed form of real vehicle, and the mounting means of bumper is consistent with real vehicle, may be implemented pair
Pedestrian collides the simulation of the vehicle in case, as quantitative test rack.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structure chart of the utility model impact test rack；
Fig. 2 is the structure chart of the fixed device of side bumper；
Fig. 3 is the structure chart of the fixed device of front bumper；
Fig. 4 is the structure chart of glass clamping device；
Marked in the figure: 1- rack base, the fixed device of the side 2- bumper, the fixed device of the front 3- bumper, 4- glass
Clamp standoff bar, 5- glass clamping device, 6- windshield face profile frame, 7- frame shape support frame, 51- fixing seat, 52- first
Revolute pair, 53- handle, the second revolute pair of 54-, 55- rubber cap, 56- third revolute pair.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model, i.e., the described embodiments are only a part of the embodiments of the utility model,
Instead of all the embodiments.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be with each
Different configurations is planted to arrange and design.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Reality based on the utility model
Apply example, those skilled in the art's every other embodiment obtained without making creative work belongs to
The range of the utility model protection.
It should be noted that the relational terms of term " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described
There is also other identical elements in the process, method, article or equipment of element.
The feature of the utility model and performance are described in further detail with reference to embodiments.
Embodiment
The utility model preferred embodiment provides a kind of pedestrian impact's test-bed towards accident reconstruction, including rack
Pedestal 1, frame shape support frame 7 and windshield face profile frame 6, rack base 1 pass through frame shape support frame 7 and windshield plane
6 bottom end of profile frame is fixedly connected, and windshield face profile frame 6 is obliquely installed, and passes through glass above windshield face profile frame 6
Glass clamp standoff bar 4 is fixedly connected with frame shape support frame 7, and glass is embedded in windshield face profile frame 6, and windshield is flat
6 both ends of facial contour frame are provided with multiple glass clamping devices 5 for being used to clamp glass, are provided with front in front of frame shape support frame 7
Bumper fixes device 3, and 7 two sides of frame shape support frame are provided with the fixed device 2 of side bumper.
Wherein, bumper fixed device 3 in front is fixedly connected with the fixed device 2 of side bumper and front bumper is fixed
Device 3 is fixedly connected with frame shape support frame 7 respectively with the fixed device 2 of side bumper；Bumper fixed device 3 in front includes 5
A supporting rod and the front fixinig plate being fixedly connected with supporting rod；Bumper fixed device 2 in side includes being fixedly connected
Side fixinig plate on frame shape support frame 7；Side fixinig plate is fixedly connected with front fixinig plate；Investigate a front surface and a side surface insurance
Fixed position of the thick stick on former vehicle, and the locating holes on frame shape support frame 7, when work, it is only necessary to insure a front surface and a side surface
The mounting hole of thick stick is successively fixed with frame shape support frame 7, and the fixed form is only in a certain vehicle, different automobile types insurance
Thick stick design is different, can be changeable according to vehicle flexible design.
Wherein, glass clamping device 5 includes fixing seat 51, the first revolute pair 52, the second revolute pair 54, third revolute pair 56
And it is fixedly connected on the clamping arm head of 54 end of the second revolute pair, prevented by adjusting glass clamping device 5 and compressing glass
Only play when work, needs to guarantee that pressing device only plays position-limiting action after glass and head model collide, glass is put
Pressing device is adjusted to slightly above glass after entering；Fixing seat 51 respectively with the first revolute pair 52, the second revolute pair 54,
Three revolute pairs 56 are flexibly connected by bolt, and third revolute pair 56 passes through spiral shell with the first revolute pair 52 and the second revolute pair 54 respectively
Bolt is flexibly connected；Clamping arm head includes the bolt that end has rubber cap 55, and bolt activity passes through the second revolute pair 54, bolt
Two sides are arranged nut and are used to adjusting elasticity；First revolute pair, 52 end is provided with handle；Fixing seat 51 and the first revolute pair 52,
Two revolute pairs 54, third revolute pair 56 control the angle of clamping arm with quadrilateral structure, when work, need first to be put into glass
It sets in region, rear use and the consistent glass glue of adhesive used in practical automobile are by glass and windshield face wheel
Wide frame 6 is fixed, after pressing device is adjusted to the position for slightly contacting but not generating pressing force with glass surface, to glass glue
Impact test is carried out after securely.
The mechanism can carry out the foundation of quantitative test are as follows: the fixing means of glass before the collision be four side adhesives it is fixed with
The fixed form of real vehicle is the same；The time that the pressing device of surrounding influences glass stress point is that head model collides glass
Afterwards, when glass rebound touches pressing device, therefore the collision result of central point is not impacted；External sealing joint strip master
It acts on and is to reinforce leakproofness, it is smaller on collision result influence to lack adhesive tape.When work, rack base and frame shape support frame are solid
Determine without movement, glass is not clamped simultaneously with bumper, only conducted an experiment every time.In bump test, pedestrian's mass
Much smaller than vehicle mass, therefore the influence in rigidity deformation is negligible, therefore is whole changeless work by gantry designs
Make mode for quantitative test.The rack will fix glass and bumper integration simultaneously, can more easily complete head collision
And the test that leg is collided, realize that scene when colliding to typical pedestrian by vehicle frontal is simulated.
The method that impact test is carried out using the impact test rack of the utility model, comprising the following steps:
S1. edge is filled with glass glue after glass specimen being put into windshield face profile frame；Windshield
Face profile frame precision machining, be not bonded profile always account for it is smaller；Glass is used after glass is put into windshield face profile frame
Glass adhesive fills marginal portion, the radian having due to glass and certainly exists gap section in placement region, with bonding
Agent is on the other hand to make glass gluing on the one hand in order to fix glass；
S2. sealing joint strip is stained in glass envelope；The main function that rises in actual vehicle of sealing joint strip of periphery is
Air-liquid sealing, can also not use；
S3. glass clamping device is placed in above glass；Pressing device is depressed into above glass, does not generate pressing force but suppression
Bounce after glass hits processed；
S4. the desired point of impingement is got on glass specimen, and carries out mark；
S5. when horizontal distance is constant or vertical height is constant, constant speed degree determines angle to transmitting head or leg at mark
Model, takes pictures to test or high speed video；Constant speed degree is determined to also need when angle transmitting head model in view of head mould
The flat throwing effect of type, a large number of experiments generally take in horizontal distance or vertical height some is constant, adjust launcher arm another
There is certain distance interval in position due to safety concerns between usual launcher arm and glass；
S6. photo or high speed video are observed, and handles data.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (9)
1. a kind of pedestrian impact's test-bed towards accident reconstruction, it is characterised in that: supported including rack base (1), frame shape
Frame (7) and windshield face profile frame (6), the rack base (1) pass through frame shape support frame (7) and windshield face wheel
Wide frame (6) bottom end is fixedly connected, and the windshield face profile frame (6) is obliquely installed, the windshield face profile frame
(6) top is fixedly connected by glass clamping support rod (4) with frame shape support frame (7), the windshield face profile frame (6)
In be embedded with glass, windshield face profile frame (6) both ends are provided with multiple for clamping the glass clamping machines of glass
Structure (5), frame shape support frame (7) front are provided with front bumper and fix device (3), frame shape support frame (7) two sides
It is fixed device (2) to be provided with side bumper.
2. pedestrian impact's test-bed according to claim 1 towards accident reconstruction, it is characterised in that: the front is protected
Dangerous thick stick fixed device (3) is fixedly connected with the side bumper fixed device (2) and the front bumper is fixed device (3)
It is fixedly connected respectively with frame shape support frame (7) with the side bumper fixed device (2).
3. pedestrian impact's test-bed according to claim 2 towards accident reconstruction, it is characterised in that: the front is protected
Dangerous thick stick fixes the front fixinig plate that device (3) include 5 supporting rods and are fixedly connected with supporting rod.
4. pedestrian impact's test-bed according to claim 3 towards accident reconstruction, it is characterised in that: side bumper
Fixed device (2) include the side fixinig plate being fixedly connected on frame shape support frame (7).
5. pedestrian impact's test-bed according to claim 4 towards accident reconstruction, it is characterised in that: the side is solid
Stator is fixedly connected with front fixinig plate.
6. pedestrian impact's test-bed according to claim 1 towards accident reconstruction, it is characterised in that: the glass clamp
Mechanism (5) is held to include fixing seat (51), the first revolute pair (52), the second revolute pair (54), third revolute pair (56) and fix
It is connected to the clamping arm head of the second revolute pair (54) end.
7. pedestrian impact's test-bed according to claim 6 towards accident reconstruction, it is characterised in that: the fixing seat
(51) it is flexibly connected respectively with the first revolute pair (52), the second revolute pair (54), third revolute pair (56) by bolt, described
Three revolute pairs (56) are flexibly connected with the first revolute pair (52) and the second revolute pair (54) by bolt respectively.
8. pedestrian impact's test-bed according to claim 6 towards accident reconstruction, it is characterised in that: the clamping arm
Head includes the bolt that end has rubber cap (55), and the bolt activity passes through the second revolute pair (54).
9. pedestrian impact's test-bed according to claim 6 towards accident reconstruction, it is characterised in that: described first turn
Dynamic pair (52) end is provided with handle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920774735.8U CN209673377U (en) | 2019-05-27 | 2019-05-27 | A kind of pedestrian impact's test-bed towards accident reconstruction |
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| CN201920774735.8U CN209673377U (en) | 2019-05-27 | 2019-05-27 | A kind of pedestrian impact's test-bed towards accident reconstruction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057598A (en) * | 2019-05-27 | 2019-07-26 | 清华大学 | A kind of pedestrian impact's test-bed and test method towards accident reconstruction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057598A (en) * | 2019-05-27 | 2019-07-26 | 清华大学 | A kind of pedestrian impact's test-bed and test method towards accident reconstruction |
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