A kind of rigid leg launches adjusting bracket
Technical field
The utility model belongs to test unit technical field, relates to a kind of rigid leg and launches adjusting bracket.
Background technology
Along with the development of society, the raising of people's living standard, automobile becomes the main traffic instrument of people's trip gradually, and the attention degree for vehicle safety performance is also more and more higher.In automotive safety research field, pedestrian protecting safety is very important ingredient, and pedestrian protecting design is relevant to vehicle front moulding, layout and structure.Pedestrian is the disadvantaged group in traffic, once have an accident, the leg of pedestrian is one of the most vulnerable position.
When there are lower limb and colliding in automobile and pedestrian, impact force and the axial moment of torsion of possible leg combine, injury can be caused to be multiplied, along with the acceleration of the collision before car and pedestrian's lower limb subsequently, pedestrian lower leg is subject to shearing force and bending force, thus causes the injuries such as the fragmentation of pedestrian's long bone fracture, knee cap and ligament injury.
It is the injury that reduction pedestrian is subject to when automobile and pedestrian collision, people work out pedestrian's leg type knocker and test in the lab, pedestrian is by the injury values be subject to during car crass to use rigid leg to reflect really in the lab, thus the front end of automobile is arranged to the less moulding of pedestrian injury, layout and structure, the injury be subject to when maximized reduction pedestrian and collision happens.In the process of test collision, relate to the requirement of impact velocity and position of collision, and existing rigid leg emitter can only be launched towards a direction, and launch accuracy is lower, the speed that rigid leg clashes into and position can not reach the requirement of test setting, cause testing the data recorded comparatively single, precision is lower, reduces the reference value of test figure.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, proposes a kind of rigid leg and launches adjusting bracket, solve the test accuracy how improved when existing rigid leg and automobile collide.
The purpose of this utility model realizes by following technical proposal: a kind of rigid leg launches adjusting bracket, it is characterized in that, comprise support reinforcing plate, described support reinforcing plate have several emission angle holes, line between any two emission angle hole circle hearts in several emission angle holes tilts, the side of described support reinforcing plate is provided with fixed head, the opposite side of described support reinforcing plate is fixed with the baffle plate for putting rigid leg, with fixed head, support reinforcing plate is connected through corresponding emission angle hole by least two bearing pins mutually with fixed head, thus make baffle plate be obliquely installed relative to vertical direction or vertically arrange.
Fixed head is connected mutually with transmitter, rigid leg is placed in baffle plate, to be inserted in different emission angle holes by two bearing pins thus to regulate the angle of support reinforcing plate and baffle plate, namely the angles of rigid leg is changed, make rigid leg by the angle set and speed after ejection and collision happens, improve test accuracy when existing rigid leg and automobile collide, and measured by the collision that angle when changing rigid leg ejection can be carried out repeatedly under different situation, make test figure have more reference value.
Launch in adjusting bracket at above-mentioned a kind of rigid leg, described baffle plate is arc convex near the side of support reinforcing plate, and the opposite side that described baffle plate is used for putting rigid leg is arc-shaped concave.Rigid leg is arranged in arc-shaped concave, is enclosed in baffle plate, and baffle plate plays the effect of location to rigid leg, makes rigid leg in the process of launching, keep stable, can not change the direction of transmitting because of unexpected acceleration.
Launch in adjusting bracket at above-mentioned a kind of rigid leg, described fixed head comprises fixed part and adjusting portion, described fixed part and adjusting portion perpendicular, described fixed part has several pilot holes and several fixed orifices, described adjusting portion has the through hole that several are corresponding with emission angle hole.Fixed head is positioned on transmitter by pilot hole, is connected mutually by fixed orifice and transmitter, by the angle of through hole adjustment fixing plate, i.e. and the angle of controllable register, thus change angle when rigid leg is launched.
Launch in adjusting bracket at above-mentioned a kind of rigid leg, the top of described support reinforcing plate is fixed with hook, and one end of described hook is positioned at the top of baffle plate.The top of rigid leg hangs on hook, and hook makes rigid leg be arranged in baffle plate can not to come off, and hook improves the installation stability of rigid leg, and angle when rigid leg is launched and speed are launched by the angle set and speed, thus raising test accuracy.
Launch in adjusting bracket at above-mentioned a kind of rigid leg, the middle of described support reinforcing plate opposite side has breach, described baffle plate sealing gap.Breach plays the effect absorbing distortion, and support reinforcing plate better can be connected with baffle plate, reduces the vibrations between baffle plate and support reinforcing plate, and angle when rigid leg is launched and speed are launched by the angle set and speed, thus improve test accuracy.
Launch in adjusting bracket at above-mentioned a kind of rigid leg, described support reinforcing plate is resisted against the middle of baffle plate side, and described baffle plate is connected mutually by sunk screw and support reinforcing plate.Be connected by sunk screw, ensure that baffle plate is for putting the slickness of rigid leg side, sunk screw can not have influence on putting of rigid leg, namely also would not have influence on the transmitting of rigid leg, improves test accuracy.
Launch in adjusting bracket at above-mentioned a kind of rigid leg, described support reinforcing plate adopts aluminium to make.Support reinforcing plate adopts aluminium, increases the intensity of support reinforcing plate, and support reinforcing plate can not be out of shape when launching rigid leg, and angle when rigid leg is launched and speed are launched by the angle set and speed, thus improve test accuracy.
Compared with prior art, the rigid leg that the utility model provides is launched adjusting bracket and is inserted in different emission angle holes by bearing pin, rigid leg can be launched obliquely, make rigid leg can along multiple different angular emission, make up the height that rigid leg falls to rum point at disengaging baffle plate, make impact test more realistic, improve test accuracy.
Accompanying drawing explanation
Fig. 1 is the side view that this rigid leg launches adjusting bracket.
Fig. 2 is the vertical view that this rigid leg launches adjusting bracket.
Fig. 3 is the rear view that this rigid leg launches adjusting bracket.
Fig. 4 is the front view that this rigid leg launches adjusting bracket.
Fig. 5 is the partial view that this rigid leg launches adjusting bracket.
In figure, 1, support reinforcing plate; 11, breach; 2, emission angle hole; 3, fixed head; 31, fixed part; 311, pilot hole; 312, fixed orifice; 32, adjusting portion; 321, through hole; 4, bearing pin; 5, baffle plate; 51, arc convex; 52, arc-shaped concave; 6, link up with; 7, sunk screw.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1 and Figure 2, this rigid leg transmitting adjusting bracket comprises support reinforcing plate 1, fixed head 3, baffle plate 5 and hook 6.
As shown in Figure 5, support reinforcing plate 1 adopts aluminium to make, in the present embodiment, support reinforcing plate 1 have four emission angle holes 2, in actual production, the quantity in emission angle hole 2 can be three or five, and the line between the center of circle, any two emission angle holes 2 in four emission angle holes 2 is obliquely installed, from top to bottom, respectively four emission angle holes 2 are designated as the first emission angle hole, the second emission angle hole, the 3rd emission angle hole and the 4th emission angle hole.
As shown in Figure 3, fixed head 3 comprises fixed part 31 and adjusting portion 32, fixed part 31 and adjusting portion 32 perpendicular, in the present embodiment, fixed part 31 have two pilot holes 311 and four fixed orifices 312, in actual production, the quantity of pilot hole 311 can be three or four, the quantity of fixed orifice 312 can be three or five, and adjusting portion 32 has the through hole 321 corresponding with emission angle hole 2, namely the quantity of through hole 321 also divides four.Fixed head 3 is positioned at the side of support reinforcing plate 1, with through hole 321, support reinforcing plate 1 is connected mutually by bearing pin 4 with fixed head 3 through corresponding emission angle hole 2, and bearing pin 4 and emission angle hole 2 clearance fit, bearing pin 4 and through hole 321 are also clearance fit.
As Fig. 2, shown in Fig. 4, baffle plate 5 is used for putting rigid leg, baffle plate 5 is positioned at the opposite side of support reinforcing plate 1, baffle plate 5 is arc convex 51 near the side of support reinforcing plate 1, the opposite side that baffle plate 5 is used for putting rigid leg is arc-shaped concave 52, the top of support reinforcing plate 1 is fixed with hook 6, one end of hook 6 is positioned at the top of baffle plate 5, the middle of support reinforcing plate 1 opposite side has breach 11, and the side that support reinforcing plate 1 has a breach 11 is resisted against the middle of baffle plate 5 side, baffle plate 5 sealing gap 11, baffle plate 5 is connected mutually by sunk screw 7 and support reinforcing plate 1.
This transmitting adjusting bracket is used for positioning and rigid leg, set the angle of baffle plate according to actual needs, thus the angle during transmitting of setting rigid leg, fixed head is connected mutually with transmitter, by transmitter, a thrust is produced to transmitting adjusting bracket, the rigid leg be positioned on baffle plate is flown out also and collision happens, and data when then colliding to vehicle and rigid leg gather, and test.
When two bearing pins 4 are through the 3rd emission angle hole and the 4th emission angle hole, be in the horizontal direction when rigid leg is now launched; When two bearing pins 4 are through the second emission angle hole and the 4th emission angle hole, launch along oblique upper when rigid leg is now launched, and the angle between surface level is 6 degree; When two bearing pins 4 are through the first emission angle hole and the 4th emission angle hole, when rigid leg is now launched, page is launched along oblique upper, and the angle between surface level is 8 degree; Can certainly offer several angular emission hole on fixed head 3, the angle that rigid leg is launched has how middle situation more.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as support reinforcing plate 1, breach 11, emission angle hole 2, fixed head 3, fixed part 31, pilot hole 311, fixed orifice 312, adjusting portion 32, through hole 321, bearing pin 4, baffle plate 5, arc convex 51, arc-shaped concave 52, hook 6, sunk screw 7 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.