CN104060558B - A kind of superplasticity safety height-limiting bar of improvement - Google Patents
A kind of superplasticity safety height-limiting bar of improvement Download PDFInfo
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- CN104060558B CN104060558B CN201410287050.2A CN201410287050A CN104060558B CN 104060558 B CN104060558 B CN 104060558B CN 201410287050 A CN201410287050 A CN 201410287050A CN 104060558 B CN104060558 B CN 104060558B
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Abstract
The invention discloses a kind of superplasticity safety height-limiting bar of improvement, comprise two column bases, two root posts, two pull bars, a crossbeam, pilot beam, two lever base.Column bases and lever base are fixed to ground; The first end of column is connected to column bases rotationally, and the second end is affixed to crossbeam; Pull bar adopts superplastic material, and its first end is connected to column second end rotationally, the second end cylinder lever connecting rod pedestal rotationally of pull bar; Pilot beam has honeycomb structure, its be connected to crossbeam and, after being in place towards head-on sail come vehicle.The present invention, by the distortion energy-absorbing of pilot beam and superplasticity pull bar, effectively reduces the loss that vehicle impact itself is subject to, alleviates the injury that driver and conductor is subject to, in addition, can replacing pull bar and pilot beam after shock, replacement operation is easy, with low cost.
Description
Technical field
The present invention relates to road safety facility technology field, particularly, relate to a kind of superplasticity safety height-limiting bar of improvement.
Background technology
In road traffic, often need the loading height being limited traffick by height limiter.As highway, ring road, culvert, bridge etc. need restriction headroom to ensure traffic safety.Along with the continuous increase of vehicle population, there is height-limiting bar fracture, car damage phenomenon that is serious and that damage other vehicles and pedestrian due to height-limiting bar fracture, thus cause serious property and the loss of personnel in lance Frequent Accidents.
Summary of the invention
The technical problem to be solved in the present invention is, for the phenomenon that property loss under height-limiting bar in road traffic and vehicle rigid collision is serious, provides a kind of superplasticity safety height-limiting bar of improvement.
The technical solution used in the present invention comprises:
A kind of superplasticity safety height-limiting bar of improvement, it is characterized in that, comprise two column bases, two root posts, two pull bars, crossbeam, a pilot beam and two lever base, wherein, each column bases is fixedly attached to ground, each lever base is also fixedly attached to ground, and two column bases and two lever base form quadrilateral structure on ground;
The first end of every root post is connected to a corresponding column bases rotationally, and the second end of two root posts is fixedly connected with the two ends of crossbeam respectively; Pull bar adopts superplastic material, and the first end of each pull bar is connected to the second end of a corresponding column rotationally, and the second end of pull bar is connected to a corresponding lever base rotationally; Pilot beam has honeycomb structure, and it is connected to the side of crossbeam, and when installed, pilot beam is towards head-on sailing the vehicle come.
Particularly, column bases comprises: the first flat base, and the first flat base is furnished with multiple base installing hole equably, and the first flat base is fixed to ground by the screw be assemblied in the plurality of base installing hole, with column mounting blocks, the bottom surface of column mounting blocks is fixed to the end face of the first flat base, the end face of column mounting blocks is formed with rectangle recess, the end face of column mounting blocks is divided into the first flank and the second flank that are spaced by this rectangle recess, and be connected to the retaining wall of the first flank and the second flank end, first flank and the second flank are formed with coaxial installation through hole, and the bottom surface of rectangle recess is formed further the cambered surface of indent, the first end that the position of this cambered surface corresponds to the installation through hole column on the first flank and the second flank is provided with cylindrical drum, cylindrical drum is connected to the first end of column by its sidewall, the middle part of cylindrical drum is axially through through hole, cylindrical drum is installed in rotation on column bases by the 3rd pin being arranged in the through hole that the first flat base is installed in the middle part of through hole and cylindrical drum, and when installed, the outer peripheral face of cylindrical drum coordinates with the cambered surface of column bases and forms revolute pair, column can be rotated along clockwise direction around the 3rd pin (3).
Particularly, the first end of pull bar and the second end are provided with pin installing hole, the first end of pull bar and the second end are connected to the second end of column and corresponding lever base rotationally respectively by the first pin and the second pin, and the material of pull bar is superplasticity steel.
Particularly, lever base comprises: the second flat base, the second flat base is provided with equably multiple pedestal installing hole, and lever base is fixed on ground by the multiple screws be installed in the plurality of pedestal installing hole; Two projection is installed, installing projection for two is arranged on the second flat base at each interval, and install on projections for two and be provided with coaxial installation through hole, the second end of pull bar is by wearing pin installing hole thereon and two the second pins installing through holes are rotatably installed in lever base.
Particularly, crossbeam is shaped steel, and the two ends of crossbeam are provided with boss, and two boss are positioned at the same side of crossbeam, and pilot beam is connected by screw on crossbeam and between two boss; The two ends of crossbeam weld together with the second end of two root posts respectively, and, when installed, crossbeam be provided with side, pilot beam side towards head-on sail come vehicle.
Particularly, pilot beam is aluminium honeycomb structure, and the core lattice axis of aluminium honeycomb structure is vertical with the installed surface of pilot beam.
The present invention's advantage is compared with prior art:
1. height-limiting bar structure of the present invention can reduce the injury of clashing into and causing vehicle itself effectively, and height-limiting bar can be avoided fracture to occur when being subject to external impact load and causes secondary injury to other vehicles or pedestrians.
2. because the material of pull bar is superplasticity steel, pilot beam is aluminium honeycomb structure, therefore, after clashing into, be subject to most of shock loading by pull bar and buffering joist support, cushion most of impact energy, can replacing pull bar and pilot beam after shock, and the miscellaneous part of height-limiting bar need not be changed, replacement operation is easy, with low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation according to height-limiting bar of the present invention;
Fig. 2 is the structural representation according to column bases of the present invention;
Fig. 3 is the structural representation according to lever base of the present invention;
Fig. 4 is the structural representation according to column of the present invention.
Detailed description of the invention
Be further described in detail below in conjunction with the superplasticity safety height-limiting bar of the drawings and specific embodiments to improvement according to the present invention.
The invention discloses a kind of superplasticity safety height-limiting bar of improvement, in a structure of the in-vention, material due to pull bar is superplasticity steel, pilot beam is aluminium honeycomb structure, and the two ends of pull bar are connected to lever base and column respectively rotationally, and one end of column is connected rotationally with the column bases on ground, after height-limiting bar is hit, can be there is larger plastic strain in the appropriate section of height-limiting bar under impact loading, reduces the damage to vehicle and driver and conductor thereof under rigid collision.The part replacement of height-limiting bar generation plastic strain is convenient, and miscellaneous part can reuse, use safety, and it is convenient to change.
Particularly, please refer to Fig. 1, comprise two column bases 1, two root post, 2, two pull bars, 5, crossbeam, 6, pilot beam 7 and two lever base 8 according to the superplasticity safety height-limiting bar of improvement of the present invention.Wherein, each column bases 3 is fixedly attached to ground, and each lever base 8 is also fixedly attached to ground, and two column bases 3 and two lever base 8 form quadrilateral structure on ground; The first end of every root post 2 is connected to a corresponding column bases 1 rotationally, and the second end of two root posts 2 is fixedly connected with the two ends of crossbeam 6 respectively; Pull bar 5 adopts superplastic material, and the first end of each pull bar 5 is connected to the second end of a corresponding column 2 rotationally, and the second end of pull bar 5 is connected to a corresponding lever base 8 rotationally; Pilot beam 7 has honeycomb structure, and it is connected to the side of crossbeam 6, and when installed, pilot beam 7 is towards head-on sailing the vehicle come.
In the preferred embodiment shown in fig. 1, column bases 1 comprises the first flat base 101.This first flat base 101 is furnished with multiple base installing hole equably, and the first flat base 101 is fixed on ground by the screw (as adopted fot screw) be assemblied in the plurality of base installing hole.This column bases 1 also comprises column mounting blocks 102.The bottom surface of column mounting blocks 102 is fixed to the end face of the first flat base 101.The end face of column mounting blocks 102 is formed with rectangle recess, the end face of column mounting blocks 102 is divided into the first flank 103 and the second flank 104 that are spaced and the retaining wall 105 being connected to the first flank 103 and the second flank 104 end by this rectangle recess.First flank 103 and the second flank 104 are formed with coaxial installation through hole 106, and the bottom surface of rectangle recess is formed further the cambered surface 107 of indent, the position of this cambered surface 107 corresponds to the installation through hole 106 on the first flank 103 and the second flank 104, for below the cylindrical drum on the column described is coordinated.As shown in Figure 2, the first flat base 101 is square block, and its four angles are furnished with four base installing holes altogether.And the first flank 103 and the second flank 104 are arranged in parallel.
In order to be rotatably connected on column bases 1, preferably, column 2 is shaped steel.As shown in Figure 4, the first end of every root post 2 is provided with cylindrical drum 201.Cylindrical drum 201 is connected to the first end of column 2 by its sidewall, the middle part of cylindrical drum 201 is axially through through hole 202, cylindrical drum 201 is installed in rotation on column bases 1 by the 3rd pin 3 being arranged in the through hole 202 that the first flat base 101 is installed in the middle part of through hole 106 and cylindrical drum 201, and when installed, the outer peripheral face of cylindrical drum 201 coordinates with the cambered surface 107 of column bases 1 and forms revolute pair.Thus, column 2 just can be rotatably connected on column bases 1.Layout like this, when being subject to clashing into, column can only rotate facing one direction, that is, rotate towards the direction that vehicle advances, for this reason, when seated, the direction (or claiming clockwise direction) that column 2 should be made can to advance towards vehicle after being impacted is rotated.In addition, the deformation extent of the rotational angle of column 2 shock loading and pilot beam 7, pull bar 5 suffered by height-limiting bar is determined.
The first end of pull bar 5 and the second end are provided with pin installing hole, the first end of pull bar 5 and the second end are connected to the second end of column 2 and corresponding lever base 8 rotationally respectively by the first pin 4 and the second pin 9, and the material of pull bar 5 is superplasticity steel.For this reason, those skilled in the art it is understood that be also correspondingly provided with pin installing hole on the second end of every root post 2.In addition, local strengthening should be carried out in the two ends of pull bar 5, and the sectional area of reinforced region is more than 2 times that non-reinforcement regional cross section amasss.
In order to pull bar being rotatably connected in lever base 8, as shown in Figure 3, in the preferred embodiment, lever base 8 comprises: the second square flat base 801, four angles of the second flat base 801 are provided with 4 pedestal installing holes equably, and lever base 8 is fixed on ground by the fot screw be installed in these 4 pedestal installing holes; Two projection 802,803 is installed, installing projection 802,803 for two is fixed on the second flat base 801 at each interval, and install on projections 802,803 for two and be provided with coaxial installation through hole 804,805, the second end of pull bar 5 is by being arranged in pin installing hole on its second end and two the second pins 9 installing through holes 804,805 are rotatably installed in lever base 8.It should be noted that, the two ends of crossbeam 6 are not limited to the type of attachment of two root posts 2 welds.
In the preferred embodiment, pilot beam 7 is aluminium honeycomb structure, and the core lattice axis of aluminium honeycomb structure is vertical with the installed surface of pilot beam 7.Corresponding those skilled in the art is well known that, in order to be connected by screw pilot beam 7 to crossbeam 6, need the embedded part of preset connection in aluminium honeycomb structure, honeycomb structure embedded part is the known technology means of this area, does not repeat at this.
The known technology that above-mentioned fot screw, screw connect and be welded to connect as those skilled in the art.
When a crash occurs, vehicle directly contacts with pilot beam 7, and the plastic strain by the aluminium honeycomb structure of pilot beam 7 absorbs shock loading, effectively reduces the extent of damage of vehicle.Along with the increasing that pilot beam 7 is out of shape, load passes to two pull bars 5 and two root posts 2 by the crossbeam 6 be connected with pilot beam 7, two root posts 2 rotate around the direction (clockwise direction) that the axis of the 3rd pin 3 is advanced along vehicle, there is stretching plastic deformation in two pull bars 5, thus absorbs residue shock loading further.
Above-mentioned pull bar 5 is superplastic material, and its elongation per unit length is greater than 50%, after being subject to hitting load, larger plastic strain can occur, and has the ability of good impact energy absorb.
After there is hard hit, can unclamp the attachment screw of pilot beam 7 and crossbeam 6, be directly replaced by new pilot beam 7, pull out the first pin 4 and the second pin 9, shift column 2 onto vertical position, the pull bar 5 more renewed, namely completes the recovery after hard hit.Other parts are still reusable.Recover convenient, cost is lower.
At this, it should be noted that, the content do not described in detail in this manual, be that those skilled in the art can be realized by the description in this manual and prior art, therefore, do not repeat.
The foregoing is only the preferred embodiments of the present invention, be not used for limiting the scope of the invention.For a person skilled in the art, under the prerequisite not paying creative work, can make some amendments and replacement to the present invention, all such modifications and replacement all should be encompassed within protection scope of the present invention.
Claims (6)
1. the superplasticity safety height-limiting bar improved, it is characterized in that, comprise two column bases (1), two root posts (2), two pull bars (5), crossbeam (6), a pilot beam (7) and two lever base (8), wherein
Each column bases (3) is fixedly attached to ground, and each lever base (8) is also fixedly attached to ground, and two column bases (3) and two lever base (8) form quadrilateral structure on ground;
The first end of every root post (2) is connected to a corresponding column bases (1) rotationally, and the second end of two root posts (2) is fixedly connected with the two ends of crossbeam (6) respectively;
Pull bar (5) adopts superplastic material, and the first end of each pull bar (5) is connected to the second end of a corresponding column (2) rotationally, and the second end of pull bar (5) is connected to a corresponding lever base (8) rotationally;
Pilot beam (7) has honeycomb structure, and it is connected to the side of crossbeam (6), and when installed, pilot beam (7) is towards head-on sailing the vehicle come.
2. the superplasticity safety height-limiting bar improved as claimed in claim 1, it is characterized in that, described column bases (1) comprising: the first flat base (101), (101) are furnished with multiple base installing hole to first flat base equably, and the first flat base (101) is fixed to ground by the screw be assemblied in the plurality of base installing hole, with column mounting blocks (102), the bottom surface of column mounting blocks (102) is fixed to the end face of the first flat base (101), the end face of column mounting blocks (102) is formed with rectangle recess, the end face of column mounting blocks (102) is divided into the first flank (103) and the second flank (104) that are spaced by this rectangle recess, and be connected to the retaining wall (105) of the first flank (103) and the second flank (104) end, first flank (103) and the second flank (104) are formed with coaxial installation through hole (106), and the bottom surface of rectangle recess is formed further the cambered surface (107) of indent, the position of this cambered surface (107) corresponds to the installation through hole (106 on the first flank (103) and the second flank (104),
The first end of column (2) is provided with cylindrical drum (201), cylindrical drum (201) is connected to the first end of column (2) by its sidewall, the middle part of cylindrical drum (201) is axially through through hole (202), cylindrical drum (201) is installed in rotation on column bases (1) by the 3rd pin (3) being arranged in the through hole (202) the first flat base (101) being installed through hole (106) and cylindrical drum (201) middle part, and when installed, the outer peripheral face of cylindrical drum (201) coordinates with the cambered surface (107) of column bases (1) and forms revolute pair, column (2) can be rotated along clockwise direction around the 3rd pin (3).
3. the superplasticity safety height-limiting bar improved as claimed in claim 1, is characterized in that,
The first end of pull bar (5) and the second end are provided with pin installing hole, the first end of pull bar (5) and the second end are connected to the second end of column (2) and corresponding lever base (8) rotationally respectively by the first pin (4) and the second pin (9), and the material of pull bar (5) is superplasticity steel.
4. the superplasticity safety height-limiting bar improved as claimed in claim 1, it is characterized in that, lever base (8) comprising:
Second flat base (801), the second flat base (801) is provided with multiple pedestal installing hole equably, and lever base (8) is fixed on ground by the multiple screws be installed in the plurality of pedestal installing hole;
Two projection (802 is installed, 803), two projection (802 is installed, 803) be arranged on the second flat base (801) at each interval, and two are installed projection (802,803) coaxial installation through hole (804 is provided with on, 805), second end of pull bar (5) is by wearing pin installing hole thereon and two the second pins (9) installing through hole (804,805) are rotatably installed in lever base (8).
5. the superplasticity safety height-limiting bar improved as claimed in claim 1, it is characterized in that, crossbeam (6) is shaped steel, the two ends of crossbeam (6) are provided with boss (601,, and two boss (601,602) are positioned at the same side of crossbeam (6) 602), pilot beam (7) is connected by screw to be gone up at crossbeam (6) and to be positioned between two boss (601,602); The two ends of crossbeam (6) weld together with the second end of two root posts (2) respectively, and, when installed, crossbeam (6) be provided with pilot beam (7) side, side towards head-on sail come vehicle.
6. the superplasticity safety height-limiting bar improved as claimed in claim 1, it is characterized in that, pilot beam (7) is aluminium honeycomb structure, and the core lattice axis of aluminium honeycomb structure is vertical with the installed surface of pilot beam (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410287050.2A CN104060558B (en) | 2014-06-24 | 2014-06-24 | A kind of superplasticity safety height-limiting bar of improvement |
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| CN201410287050.2A CN104060558B (en) | 2014-06-24 | 2014-06-24 | A kind of superplasticity safety height-limiting bar of improvement |
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| CN104060558A CN104060558A (en) | 2014-09-24 |
| CN104060558B true CN104060558B (en) | 2015-11-25 |
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Families Citing this family (7)
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| CN104376719B (en) * | 2014-12-03 | 2016-08-24 | 国家电网公司 | Portable infrared exoelectron height limiting device for transformer station |
| CN106638366A (en) * | 2016-12-27 | 2017-05-10 | 山东大学 | Intelligent height-limiting device and method for interchange with buffering function |
| CN107815987A (en) * | 2017-11-27 | 2018-03-20 | 佛山科学技术学院 | A kind of energy-absorbing height-limiting frame |
| CN111350144B (en) * | 2020-03-29 | 2021-12-17 | 华中科技大学 | Energy dissipation and height limiting frame made of composite material |
| CN111608108A (en) * | 2020-06-09 | 2020-09-01 | 李睿 | Adjustable road and bridge height limiting device |
| CN112267395A (en) * | 2020-10-15 | 2021-01-26 | 温州融宸科技有限公司 | Anticollision damage-proof road limit for height frame |
| CN112695667A (en) * | 2020-12-30 | 2021-04-23 | 温州厚德机械装备有限公司 | Height limiting device for road and bridge |
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| US4372536A (en) * | 1981-03-06 | 1983-02-08 | Trafcon, Inc. | Traffic barricade |
| CN202416751U (en) * | 2012-01-11 | 2012-09-05 | 孙长娟 | Road height-limiting device |
| CN203080445U (en) * | 2013-01-30 | 2013-07-24 | 烟台职业学院 | Road safety height limiting support |
| CN203530884U (en) * | 2013-11-13 | 2014-04-09 | 河北前进机械厂 | Intelligent road height limit rack |
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2014
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4372536A (en) * | 1981-03-06 | 1983-02-08 | Trafcon, Inc. | Traffic barricade |
| CN202416751U (en) * | 2012-01-11 | 2012-09-05 | 孙长娟 | Road height-limiting device |
| CN203080445U (en) * | 2013-01-30 | 2013-07-24 | 烟台职业学院 | Road safety height limiting support |
| CN203530884U (en) * | 2013-11-13 | 2014-04-09 | 河北前进机械厂 | Intelligent road height limit rack |
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