CN210198725U - A test device for pedestrian head striking - Google Patents
A test device for pedestrian head striking Download PDFInfo
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- CN210198725U CN210198725U CN201921442386.6U CN201921442386U CN210198725U CN 210198725 U CN210198725 U CN 210198725U CN 201921442386 U CN201921442386 U CN 201921442386U CN 210198725 U CN210198725 U CN 210198725U
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Abstract
The utility model discloses a test device for pedestrian head striking, include: the launching rack is provided with an installation bottom plate; a launching mechanism which is arranged on the mounting bottom plate and can rotate relative to the mounting bottom plate; one end of the angle adjusting mechanism is fastened on the launching rack, and the other end of the angle adjusting mechanism is fastened on the end part, opposite to the launching end, of the launching mechanism; wherein: the launching mechanism comprises: the test device for pedestrian head impact can verify the protection performance of the test device for pedestrian head impact in advance in the design process of the engine cover and shorten the development period; the pedestrian head collision test device can be used for simulating pedestrian head collision tests of various vehicle types, reduces development cost and has a wide application range.
Description
Technical Field
The utility model relates to an automobile manufacturing field especially relates to a test device for pedestrian's head striking.
Background
With the rapid increase of the automobile holding capacity, the road working conditions are increasingly complex, the automobile traffic accidents are frequent, and the head injury of pedestrians accounts for more than 30% of the head injury of the pedestrians in the collision accident injury of the pedestrians and the automobiles; among causes of death of pedestrians, head injuries account for more than 60%. The protection of pedestrians outside the automobile is the key and preferential direction of the safe work of the current Chinese automobile.
The existing pedestrian protection head collision performance development process needs to carry out a head type collision test to verify the pedestrian protection head collision performance of a vehicle, in the past project development process, the head collision test can be carried out only after the whole vehicle is assembled for verifying the performance, extra mold setting cost is caused due to the fact that the performance does not reach the standard in the later stage of the test, the test period is long, the test cost is high, and the like.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a testing device for pedestrian head impact, which can verify the protection performance of the engine cover to the pedestrian head impact in advance in the design process of the engine cover and shorten the development period; the pedestrian head collision test device can be used for simulating pedestrian head collision tests of various vehicle types, reduces development cost and has a wide application range.
In order to solve the above technical problem, an embodiment of the utility model provides a test device for pedestrian's head striking, include: the launching rack is provided with an installation bottom plate; a launching mechanism which is arranged on the mounting bottom plate and can rotate relative to the mounting bottom plate; one end of the angle adjusting mechanism is hinged to the launching rack, and the other end of the angle adjusting mechanism, which is opposite to the launching end, is hinged to the end, opposite to the launching end, of the launching mechanism; wherein: the launching mechanism comprises: thrust cylinder subassembly, the energy storage subassembly that links to each other with thrust cylinder subassembly, the release cylinder subassembly that links to each other with the energy storage subassembly, the launcher that links to each other with the energy storage subassembly and head impacter, the head impacter is installed on the launcher, wherein: the energy storage assembly is stored by the aid of the thrust air cylinder assembly, the energy storage of the energy storage assembly is released by the release air cylinder assembly, and the head impactor is launched by the energy storage assembly through the launching frame.
The launching mechanism is provided with a launching mechanism mounting seat, the mounting base plate is provided with a bolt fixing seat, the launching mechanism is connected with the bolt fixing seat in an adaptive mode through the launching mechanism mounting seat, and the launching mechanism is rotatably connected to the launching rack.
Wherein angle adjustment mechanism includes: the angle adjusting mechanism comprises an angle adjusting handle, an angle adjusting screw rod connected with the angle adjusting handle and an angle adjusting bolt, wherein one end of the angle adjusting bolt is connected with the angle adjusting screw rod, and the other end of the angle adjusting bolt is connected with the end part, opposite to the transmitting end, of the transmitting mechanism; wherein: the angle adjusting handle is rotated to drive the angle adjusting screw to rotate, the angle adjusting screw rotates to drive the angle adjusting bolt to reciprocate, and the angle adjusting bolt reciprocates to drive the launching mechanism to rotate.
Wherein, thrust cylinder subassembly includes: thrust cylinder body, cylinder stroke control pole, cylinder backplate, cylinder bottom plate and linear guide, wherein: the cylinder backplate links firmly with the cylinder bottom plate, and thrust cylinder body starts the back, drives the cylinder backplate along linear guide motion, cylinder bottom plate linkage energy storage subassembly.
The launcher comprises a launcher body, an energy storage assembly, a releasing air cylinder assembly and a releasing air cylinder assembly, wherein the energy storage assembly comprises a spring, the launcher body is provided with a pull rod connected with the spring, and the releasing air cylinder assembly comprises a clamping air cylinder connected with the pull rod; wherein: the clamping cylinder retracts, the pull rod is released, the spring in a compressed state is linked with the pull rod, and the head impactor is launched.
The angle adjusting pointer is arranged on the installation base plate, the dial is arranged on the installation base plate, and the angle of the launching mechanism relative to the horizontal plane is read through the relative position pointed by the angle adjusting pointer on the dial.
Wherein, still include: the engine hood mounting base is fixed with an engine hood and used for bearing the head impactor, and the engine hood mounting base is positioned on the adjacent side of the launching rack; the engine cover mounting base includes: the engine hood comprises a first frame, hinge fixing plates and locking clamps, wherein the hinge fixing plates are arranged on two opposite sides of the first frame and used for fixing an engine hood, the locking clamps are arranged on the first frame, and the hinge fixing plates are provided with adjusting holes used for adjusting the engine hood in the Y direction.
Wherein, still include: the speed measurement mechanism of setting in the relative both sides of engine bonnet installation base, speed measurement mechanism includes: second frame, setting can follow second frame reciprocating motion's regulating arm and install the tachymeter on the regulating arm from top to bottom in the second frame, wherein: the adjusting arms are two in up-and-down arrangement.
Wherein, still include: a console for controlling the thrust cylinder assembly and/or the release cylinder assembly.
Wherein, the head impacter passes through magnet absorption on the launcher, is equipped with the laser sight on the launcher.
The utility model provides a test device for pedestrian head striking has following beneficial effect: the launching mechanism comprises: thrust cylinder subassembly, the energy storage subassembly that links to each other with the thrust cylinder subassembly, the release cylinder subassembly that links to each other with the energy storage subassembly, the launcher that links to each other with the energy storage subassembly and head impacter, the head impacter adsorbs on the launcher, wherein: the energy storage assembly is stored by the aid of the thrust air cylinder assembly, the energy storage of the energy storage assembly is released by the release air cylinder assembly, and the head impactor is launched by the energy storage assembly through the launching frame. The protection performance of the engine hood for pedestrian head collision can be verified in advance in the design process of the engine hood, and a head collision test is not required to be carried out after the whole vehicle comes out, so that the design period of a product is shortened, and the development risk and the test cost of the product are reduced. The structure is simple, and the maintenance is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a device for testing head impact of a pedestrian according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a launching rack for a pedestrian head impact test device according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a first viewing angle of a launching mechanism of a pedestrian head impact test device according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a second viewing angle of the launching mechanism of the pedestrian head impact testing apparatus according to the embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a release cylinder assembly for a pedestrian head impact test device according to an embodiment of the present invention.
Fig. 6 is a schematic view of an assembly structure of a head impactor and a ball launching rack of a pedestrian head impact testing device according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of an angle adjusting mechanism for a pedestrian head impact test device according to an embodiment of the present invention.
Fig. 8 is a partially enlarged schematic view of an angle adjusting mechanism for a pedestrian head impact test device according to an embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a hood mounting base for a pedestrian head impact test device according to an embodiment of the present invention.
Fig. 10 is a schematic structural diagram of a speed measuring mechanism for a pedestrian head impact test device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-10 in combination, the first embodiment of the testing device for pedestrian head impact according to the present invention is shown.
As shown in fig. 1, the testing device for pedestrian head impact in the present embodiment can be used to verify the pedestrian protection head impact performance of the engine hood welded hinge assemblies of different vehicle types, and the head-shaped impactor of the bench testing device can be installed as a human head-shaped impactor or a child head-shaped impactor. In practice, it comprises: the device comprises a launching rack 1, a launching mechanism 2, an angle adjusting mechanism 3, an engine hood mounting base 4, a speed measuring mechanism 5 and a control console 6.
As shown in fig. 2, it is a schematic structural diagram of the launching rack of the pedestrian head impact testing device of the present invention. When the launching platform 1 is implemented, the launching platform 1 is of a frame structure and is used for supporting the launching mechanism 2, and the launching platform 1 in the embodiment is fixed on the horizontal ground through foundation bolts.
The launching platform 1 is provided with a mounting bottom plate 11, the mounting bottom plate 11 is a plate-shaped structure with a notch at one side, and the notch is used for assembling the launching mechanism 2. In this embodiment, the mounting base plate 11 is provided with a bolt fixing seat 111, and the launching mechanism 2 is rotatably connected to the launching rack 1 through the adaptive connection of the launching mechanism mounting seat and the bolt fixing seat 111.
As shown in fig. 3 to 4, the launching mechanism 2 is mounted on a mounting base plate 11, which is rotatable at an angle relative to the mounting base plate 11. In specific implementation, the launching mechanism 2 includes: the launching mechanism mounting seat 21, thrust cylinder assembly 22, the energy storage assembly 23 that links to each other with thrust cylinder assembly 22, the release cylinder assembly 24 that links to each other with energy storage assembly 23, the shooting frame 25 and the head impacter 26 that link to each other with energy storage assembly 23, head impacter 26 adsorbs on the shooting frame 25, wherein: the energy storage assembly 23 is charged by the thrust of the thrust cylinder assembly 22, the energy storage of the energy storage assembly 23 is released by the release cylinder assembly 24, and the head impactor 26 is shot by the energy storage assembly 23 through the shooting frame 25.
The launching mechanism mount 21 is a pedestal structure that functions to support the components of the launching mechanism 2. The rotation of the launching mechanism mount 21 relative to the mounting baseplate 11 is performed by: the rotation shafts 211 are provided on opposite sides of the launching mechanism mounting base 21, respectively, the rotation shafts 211 are fitted into the bolt fixing seats 111 of the mounting base plate 11, and the launching mechanism mounting base 21 can rotate integrally with respect to the mounting base plate 11 with the rotation shafts 211 as a rotation center.
Preferably, the angle adjusting pointer 212 is provided on the launching mechanism mounting base 21, the scale 112 is provided on the mounting base plate 11, and the angle of the launching mechanism 2 relative to the horizontal plane is read by the relative position pointed by the angle adjusting pointer 212 on the scale 112.
Further, a thrust cylinder assembly 22, an energy storage assembly 23, a release cylinder assembly 24, a carrier 25 and a head impactor 26 are respectively assembled on the firing mechanism mount 21.
In practice, the thrust cylinder assembly 22 comprises: thrust cylinder body 221, cylinder stroke adjustment pole 222, cylinder backplate 223, cylinder bottom plate 224 and linear guide 225, wherein: the cylinder back plate 223 is fixedly connected with the cylinder bottom plate 224, the thrust cylinder body 221 is started to drive the cylinder back plate 223 to move along the linear guide rail 225, and the cylinder bottom plate 224 is linked with the energy storage assembly 23 to move, so that energy storage of the energy storage assembly 23 is realized.
The energy storage assembly 23 is fixed on the cylinder bottom plate 224 and at least comprises a spring, and the cylinder back plate 223 is fixedly connected with the cylinder bottom plate 224, so that after the thrust cylinder assembly 22 is started through the console 6, the cylinder back plate 223 is driven to move along the linear guide rail 225, and the cylinder bottom plate 224 moves upwards to compress the spring of the energy storage assembly 23, thereby realizing energy storage.
The release cylinder assembly 24 is comprised of a tie rod 241, a left clamp cylinder 242 and a right clamp cylinder 243, as shown in FIG. 5. With further reference to fig. 6, a head impactor 26 is attached to the sphere stand 25. In specific implementation, the control of the left clamping cylinder 242 and the right clamping cylinder 243 is realized through the control console 6, the left clamping cylinder 242 and the right clamping cylinder 243 retract, the pull rod 241 is released, the spring in a compressed state is linked with the pull rod 241, and the head impactor 26 is launched.
Preferably, the head impactor 26 is attached to the launcher 25 by a magnet, and the launcher 25 is provided with a laser sight 251 for adjusting the angle of the firing impact of the firing mechanism 2.
As shown in fig. 7-8, one end of the angle adjusting mechanism 3 is fastened to the launching stand 1, and the opposite end of the angle adjusting mechanism 3 is fastened to the end of the launching mechanism 2 opposite to the launching end; wherein: the angle adjustment mechanism includes: the angle adjusting mechanism comprises an angle adjusting handle 31, an angle adjusting screw 32 and an angle adjusting bolt 33, wherein the angle adjusting screw 32 is connected with the angle adjusting handle 31, one end of the angle adjusting bolt 33 is connected with the angle adjusting screw 32, and the other end of the angle adjusting bolt 33 is connected with the end part, opposite to the transmitting end, of the transmitting mechanism 2; wherein: by rotating the angle adjustment handle 31, the angle adjustment screw 32 is driven to rotate, the angle adjustment screw 32 rotates to drive the angle adjustment bolt 33 to reciprocate, and the angle adjustment bolt 33 reciprocates to drive the launching mechanism 2 to rotate.
As shown in fig. 9, the hood mounting base 4 is used to fix a hood T through which a head impactor 26 is received, which is fitted to the adjacent side of the launch pad 1; the hood mounting base 4 includes: the engine hood adjusting device comprises a first frame 41, hinge fixing plates 42 arranged on two opposite sides of the first frame 41 and used for fixing an engine hood, and locking clamps 43 arranged on the first frame 41, wherein adjusting holes 421 used for adjusting the engine hood in the Y direction are formed in the hinge fixing plates 42.
During implementation, the engine cover mounting base 4 is fixedly connected to the horizontal ground through foundation bolts, the left hinge and the right hinge of the engine cover T are respectively fixed to the hinge fixing plate 42 through bolts, and the lock catch of the engine cover T is fixed through the lock catch clamp 43.
As shown in fig. 10, the speed measuring mechanism 5 is disposed on two opposite sides of the hood mounting base 4, and the speed measuring mechanism 5 includes: a second frame 51, an adjusting arm 52 disposed on the second frame 51 and capable of reciprocating up and down along the second frame 51, and a velometer 53 disposed on the adjusting arm 52, wherein: the two adjustment arms 52 are arranged one above the other.
During the implementation, tachymeter 53 is testing the speed, and install tachymeter 53 on two regulating arms 52 respectively and aim at, and regulating arm 52 can move at the different striking positions of engine bonnet T according to the head touch point, and tachymeter 53 can reciprocate according to the position of different collision points.
When the utility model is used for the pedestrian head impact test device, different head impactors 26 are installed according to different test types, and the launching mechanism 2 is adjusted to the required head type impact angle through the angle adjusting handle 31 of the angle adjusting mechanism 3 according to different test types; the left and right clamp cylinders 242 and 243 of the release cylinder assembly 24 are turned on by the console 6, and the left and right clamp cylinders 242 and 243 move the locking tie bar 241 inward; then, the thrust cylinder assembly 22 is started through the console 6, after the thrust cylinder body 221 is started, the cylinder back plate 223 is driven to move along the linear guide rail 225, and the cylinder bottom plate 224 is linked with the energy storage assembly 23 to move, so that energy storage of the energy storage assembly 23 is realized; after the energy storage assembly 23 meets the set energy storage requirement, the left clamping cylinder 242 and the right clamping cylinder 243 are controlled to be closed through the control console 6, the left clamping cylinder 242 and the right clamping cylinder 243 retract towards two sides, the pull rod 241 is released, the spring in a compressed state is linked with the pull rod 241, the head impactor 26 is launched, the head impactor 26 is provided with a relevant sensor, test data are transmitted to the control console 6 through a wiring harness, a head collision damage value is obtained through analysis software, and therefore pedestrian protection performance of the engine hood T of a certain vehicle type is evaluated.
Implement the utility model discloses a test device for pedestrian head striking can be at the early stage that project development engine bonnet sample was made, can carry out pedestrian protection head to the engine bonnet and bump the experiment, verifies its pedestrian's protective properties, can shorten engine bonnet development cycle, reduces pedestrian protection star level target and reaches the risk, reduces sample development by a wide margin and establishes the variable expense. The structure is simple, the manufacturing cost is low, the maintenance cost is low, and the equipment purchase and maintenance cost can be greatly reduced.
Claims (10)
1. A testing device for pedestrian head impact, comprising:
the launching rack is provided with an installation bottom plate;
the launching mechanism is arranged on the mounting bottom plate and can rotate relative to the mounting bottom plate;
one end of the angle adjusting mechanism is hinged to the launching rack, and the other opposite end of the angle adjusting mechanism is hinged to the end, opposite to the launching end, of the launching mechanism; wherein:
the launching mechanism includes: the device comprises a thrust cylinder assembly, an energy storage assembly connected with the thrust cylinder assembly, a release cylinder assembly connected with the energy storage assembly, a launching frame connected with the energy storage assembly and a head impactor, wherein the head impactor is mounted on the launching frame, and comprises:
the energy storage assembly is used for storing energy through the thrust of the thrust cylinder assembly, the energy storage assembly is released by the release cylinder assembly, and the head impactor is launched through the launching frame by the energy storage assembly.
2. The device for testing the head impact of the pedestrian according to claim 1, wherein the launching mechanism is provided with a launching mechanism mounting seat, the mounting base plate is provided with a bolt fixing seat, and the launching mechanism is rotatably connected to the launching rack through the adaptive connection of the launching mechanism mounting seat and the bolt fixing seat.
3. A pedestrian head impact test apparatus according to claim 1 or 2, wherein the angle adjustment mechanism comprises: the angle adjusting mechanism comprises an angle adjusting handle, an angle adjusting screw rod and an angle adjusting bolt, wherein the angle adjusting screw rod is connected with the angle adjusting handle;
wherein: the angle adjusting handle is rotated to drive the angle adjusting screw rod to rotate, the angle adjusting screw rod rotates to drive the angle adjusting bolt to reciprocate, and the angle adjusting bolt reciprocates to drive the launching mechanism to rotate.
4. The test rig for pedestrian head impact of claim 1, wherein the thrust cylinder assembly includes: thrust cylinder body, cylinder stroke control pole, cylinder backplate, cylinder bottom plate and linear guide, wherein:
the air cylinder back plate is fixedly connected with the air cylinder bottom plate, the thrust air cylinder body is driven to move along the linear guide rail after being started, and the air cylinder bottom plate is linked with the energy storage assembly.
5. The device as claimed in claim 4, wherein the energy storage assembly comprises a spring, the launcher is provided with a tension rod connected to the spring, and the release cylinder assembly comprises a clamping cylinder connected to the tension rod; wherein:
and the clamping cylinder retracts to release the pull rod, and the spring in a compressed state is linked with the pull rod to launch the head impactor.
6. The device for testing pedestrian head impact according to claim 2, characterized in that the firing mechanism mounting base is provided with an angle adjustment pointer, the mounting base plate is provided with a scale disc, and the angle of the firing mechanism relative to the horizontal plane is read by the relative position of the angle adjustment pointer pointed on the scale disc.
7. The device for testing pedestrian head impact of claim 1, further comprising: a hood mounting base to which a hood is secured to receive the head impactor, the hood mounting base being located adjacent the launch pad;
the hood mounting base includes: the engine hood comprises a first frame, hinge fixing plates and locking clamps, wherein the hinge fixing plates are arranged on two opposite sides of the first frame and used for fixing an engine hood, the locking clamps are arranged on the first frame, and the hinge fixing plates are provided with adjusting holes used for adjusting the engine hood in the Y direction.
8. The pedestrian head impact testing apparatus of claim 7, further comprising: the setting is in the speed measurement mechanism of the relative both sides of engine bonnet installation base, speed measurement mechanism includes:
second frame, setting are in can follow in the second frame the regulating arm of reciprocating motion about the second frame and install tachymeter on the regulating arm, wherein: the adjusting arms are two in up-and-down arrangement.
9. The device for testing pedestrian head impact of claim 1, further comprising: a console to control the thrust cylinder assembly and/or the release cylinder assembly.
10. The device for testing the head impact of a pedestrian according to claim 1, wherein the head impactor is attracted to the launcher by a magnet, and the launcher is provided with a laser sight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921442386.6U CN210198725U (en) | 2019-08-30 | 2019-08-30 | A test device for pedestrian head striking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921442386.6U CN210198725U (en) | 2019-08-30 | 2019-08-30 | A test device for pedestrian head striking |
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| Publication Number | Publication Date |
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| CN210198725U true CN210198725U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921442386.6U Active CN210198725U (en) | 2019-08-30 | 2019-08-30 | A test device for pedestrian head striking |
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| CN (1) | CN210198725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197928A (en) * | 2020-09-14 | 2021-01-08 | 中国第一汽车股份有限公司 | Head type recovery device for pedestrian protection head type test |
-
2019
- 2019-08-30 CN CN201921442386.6U patent/CN210198725U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197928A (en) * | 2020-09-14 | 2021-01-08 | 中国第一汽车股份有限公司 | Head type recovery device for pedestrian protection head type test |
| CN112197928B (en) * | 2020-09-14 | 2022-12-27 | 中国第一汽车股份有限公司 | Head type recovery device for pedestrian protection head type test |
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