CN101591892A - The fusible bolt connecting mechanism of metallic safety protection fence - Google Patents

The fusible bolt connecting mechanism of metallic safety protection fence Download PDF

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Publication number
CN101591892A
CN101591892A CNA200910145723XA CN200910145723A CN101591892A CN 101591892 A CN101591892 A CN 101591892A CN A200910145723X A CNA200910145723X A CN A200910145723XA CN 200910145723 A CN200910145723 A CN 200910145723A CN 101591892 A CN101591892 A CN 101591892A
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CN
China
Prior art keywords
bolt
fence
vehicle
post
shank
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CNA200910145723XA
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Chinese (zh)
Inventor
阿蒙瓜尔皮瑞卡丝·安东尼奥
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Hierros y Aplanaciones SA
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Hierros y Aplanaciones SA
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Publication of CN101591892A publication Critical patent/CN101591892A/en
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02Continuous barriers extending along roads or between traffic lanes
    • E01F15/04Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0407Metal rails
    • E01F15/0423Details of rails

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The present invention relates to metallic safety protection fence horizontal fence, cross bar or railing are connected to the fusible bolt connecting mechanism of vertical supporting pillar.The intensity of force that described fusible bindiny mechanism sends described bindiny mechanism in vehicle collision has the ability of controlled release or disengaging when surpassing predetermined threshold value.Described bindiny mechanism comprises bolt, from the place of bolt head specific range uniform part or zone is arranged on the shank of bolt of described bolt, and described part or zone process machinery or chemical treatment are to reduce its mechanical resistance performance.

Description

The fusible bolt connecting mechanism of metallic safety protection fence
Technical field
The present invention relates to prevent the metal vehicle contention system or the metallic safety protection fence of vehicle side collision, more specifically say, is the fusible bolt connecting mechanism that the horizontal fence of described fence is connected to vertical supporting pillar.Described bindiny mechanism imposes on metallic safety protection fence when vehicle collision power has the performance that controllably discharges or break away from when surpassing pre-set threshold, described security fence is generally used for the roadbed and the safety island in roadside, sometimes the border that also is used for bridge deck, contention protection or similar structure.
Background technology
Various vehicle contention systems are arranged in the practical application, and such system can be regarded as any facility that installation on the way on the way turns to for out of control vehicle is erratic to be provided maintenance and be redirected.These facilities have reduced the order of severity of accident and have reduced other people on vehicle driver and the road and have been positioned at the people of periphery or the destruction and the injury of thing in addition.
Now the most frequent commercial a kind of contention system of using is a metallic safety protection fence, and it is a kind of facility that is used for roadside and safety island.These systems prevent that also vehicle from passing described fence thus for the third party provides protection when stoping vehicle collision, thereby described system allows to crash to collide and carries out controlled be redirected and deceleration has guaranteed the safety of other people on vehicle driver and the Lu so that vehicle withdraws from collision with stable status and can continue to travel in the contiguous its original orientation of contention system and track.
According to the formulation (the EN 1317-2 in Europe and the NCHRP 350 of the U.S.) of current law, metallic safety protection fence and railing must be accepted comprehensive crash tests of standard before putting it into commercial operation.In test, vehicle bumps with a kind of controllable mode and vehicle contention system and test result is carried out qualitative and quantitative analysis.When the requirement of the full test of all legal provisions and acceptance criteria (contention level particularly; impact strength; distortion and deviation angle) can think just when satisfying that the performance of contention system is satisfactory; doing like this is to collide vehicle drive ability and third-party safety in order to guarantee, just thinks that when above-mentioned standard all is met this contention system is suitable for protecting the vehicle of particular type.
According to above-mentioned legal provisions, a kind of contention system (be in particular accept heavy vehicle for example truck and motor bus design) must be by passenger vehicle and heavy vehicle (heavy passenger vehicle, truck and motor bus) comprehensive crash tests, also to pass through the crash tests of light vehicle (light bus) in addition.This makes standard and high contention system all use the safety that guarantees light vehicle, and light vehicle is the vehicle that often is involved in the traffic accident.For example, according to European standard EN 1317-2, the standard level N2 of contention require described safety protection fence by the TB32 crash tests (1500 kilograms heavy passenger vehicle with 110 kms/hour speed clash into described contention system with 20 ° collision angle) and the TB11 test (900 kilograms light bus with 110 kms/hour speed clash into described contention system with 20 ° collision angle).
In actual life, for light vehicle and heavy vehicle provide the commercial contention system of solution to have a following difficult problem:
On the one hand, the ingredient of all safety protection fences all has when experiencing the bump of light-duty or heavy vehicle usually by the ability of distortion with the reply bump.For the safety protection fence (being also referred to as high contention fence) that stands the heavy vehicle design has usually for tackling the operating mechanism that different light or heavy bumps designs.For described fence, when same fence can suitable reaction just think that the design of this fence is successful when running into dissimilar bumps.
The safety protection fence that design is used for standing heavy passenger vehicle (standard contention) has the operating mechanism that the bump according to different passenger vehicle gravity indexes (the horizontal kinetic energy of bump) little by little responds usually, described operating mechanism can guarantee that the bump index reaches and reasonably reduce maximum distortion and in all cases before the most serious degree, when the order of severity (according to the deceleration progress of passing through vehicle during measuring bump) was enough low, described operating mechanism can also carry out reorientation to described vehicle along its deflection path.
The basic setup of metallic safety protection fence comprises two metal assemblies that link together and other two assemblies, and the 3rd assembly and the 4th assembly are optional:
1. fence or railing, described fence or railing warp-wise assembly, it with assigned altitute divide one or the two-stage level be provided with continuously, its effect is restriction and guiding and its vehicle of bumping, thereby prevent that described vehicle from passing described fence or balustrade assemblies, it can also reduce the lateral deformation of vehicle and can guide it to make it carry out reorientation with suitable manner.Described fence can be provided with by different modes: one or more have opening or almost closed warp-wise section bar and a section bar with two or three waveforms or " C " or " ∑ " shape, be connected on the described post by distance member, directly invest the rope or the stress Metallic rod of described post; Bottoms two or three corrugated warp-wise section bars are connected with the metal sheet that can move freely and can impose reaction force when being collided.
2. post, described post vertically are provided with at a certain distance and fix with described fence or railing, and its effect is when the generation vehicle collision the fence of described fence or balustrade assemblies support and maintains preset height.Described post normally cross section is remain silent section bar or the implantation roadbed in rectangular tubular section or other type cross section or the section bar of safety island of " C ", " U ", " I " " ∑ " or " Z " shape, the part of the length of described section bar or insert ground or get up with bolt by the metal sheet that inserts ground.When collision happens, the energy that produced of collision can make described post that more or less distortion takes place, with respect to implanting or fixing part bends and/or twists.
3. distance member, it is the intermediate connecting part that is usually located between fence or railing and the described post.The effect of described distance member is:
(I) described fence or railing are connected to the certain height of described fixed leg,
The wheel of described vehicle is hooked or otherwise stops by described post when (II) serving as distance member prevent that vehicle and fence from bumping between described fence or railing and described post,
(III) time keep the height of the fence that contact with vehicle in collision, compensate described post collide flattening effect that retreating of causing caused with downward dual distortion and
(IV) buffering and absorb collision energy and make the reorientation of collision vehicle, in this case, described distance member is called as acceptor of energy.The energy absorption function of described distance member is the characteristics of high contention fence, because described fence is firm or the basic structure of rigidity, comprise fence and the short firm post that can limit heavy vehicle that is provided with at interval, these structures make that they are too firm and are not suitable as the collision contention device of light vehicle.Described interval-absorbent assembly is exactly that to clash into the impact strength that basic robust construction produces custom-designed in order to reduce light vehicle, and it can relax vehicle and can reorientate the vehicle that departs from contacting also of described post.In case of necessity, this assembly can be arranged to independent assembly or be arranged to other complicated more form with steel plate component and/or shape, or the tubulose section bar of square or square-section opening or closed.Also have and do not comprise at interval or the roll guard of absorbent assembly that fence assembly directly is connected with column assembly in these fence.Under other situation, particularly on the racing car round, also can find the absorption or the distance member of other type, for example be arranged between described fence and post or the exterior wall cylinder that draws elastomeric material to make to be filled with foamed material or similar material with anti-; Or the same triangle metal construction of half truss is simultaneously as absorbent assembly and column assembly, and described structure allows described roll guard to be moved when bumping.Sometimes, the energy absorption of described safety protection fence is achieved by assigning elastic housing or cover elasticity adaptation thing on fence or railing.
4. level supports the back continuously, and the back that is supported on described roll guard after described couples together the post warp-wise of described fence, and the top of continuous post by them is coupled together or the back component of continuous post by the consecutive intervals assembly coupled together.The effect that described back is supported is as follows:
(I) between each post, distribute pressure that collision produces by draw the lateral deformation that reduces described fence and
(II) compensate and limit the twisting resistance of described column cap.
The different component groups of forming metallic safety protection fence are fitted together, the normally connection by the bolt type, that is and, those are by bolt or have the locking nut and being connected that one or several pad is formed of internal thread.
For the metallic safety protection fence of different contention type design has firm distance member-dividing plate-so that obtain acceptable fence deformation level usually for the passenger vehicle that limits friction speed and Different Weight; and also be in order after when collision and collision, to keep the stability of vehicle, in minimum rank (better grade), to limit serious grade and give the described suitable reorientation ability of vehicle that departs from.
Typical case's collision order that passenger vehicle and metallic safety protection fence (being installed in roadside or safety island is made up of the continuous fence of level of vertical component support) bump is as follows:
The primary collision of passenger vehicle and roll guard occurs between the leading flank (left side still is that the right side depends on that collision is to occur in Left or right) and described metal fence of passenger vehicle.The consequence of contact is specifically, and described fence sends the pressure that produces to nearest post, begins torsional deformation then and also rolls over backward.Because described collision comprises the zone that is positioned at vehicle's center of gravity, therefore cause vehicle to rotate along the direction that changes its course.Initial period of contact and after, on less degree, described dividing plate (if any) thus make the wheel of vehicle avoid adding the distortion of large pillar away from the basis of pillar.
When the deformability of described pillar is used up, bent angle after it can form one, discharge to connect and just become necessary being connected of described pillar and fence, because can avoiding pulling described fence, described like this pillar move down and avoid to make described vehicle to become unstable, because the height of contact fence and the difference between the vehicle's center of gravity can cause vehicle to topple or be horizontally through described fence to make described fence be close to breaking-up.In case the assembly of joint pin and fence discharges, described fence will draw or " rope draws " action as acceptance, and warp-wise and lateral deformation power are sent to contiguous post freely and therefore turn to preceding travel direction propagation collision suddenly along vehicle.This relieving mechanism that is connected between fence or fence dividing plate and post is called as " fusibility ".
In case first major gene is that fusibility is released; the collision of propagating along the original travel direction of vehicle contacts with fence through regular meeting; and it can discharge in succession and connect the pillar that distributes on the fence; they can continue to move as the assembly of accepting traction, up to the rear portion and the fence generation collision for the second time of vehicle.Comprise the parts that are positioned at the vehicle's center of gravity rear portion because this collides for the second time, thereby so it can make vehicle cause vehicle to withdraw from and from described system, separate along the process of position again with respect to the direction rotation stopping vehicle of reorientation.During described departing from, because vehicle departs from respect to the fence warp-wise in some position lateral penetration is arranged, therefore last root pillar of the fence that contacts with vehicle also can break away from.During collision for the second time,, the fence of described disintegration also can pass described contention system because of instability if enough lacking described vehicle with respect to vehicle.
The fusible mechanism of described roll guard is usually located at the place that described dividing plate and described pillar link together, it or shut down the head of one or more bolts by the respective central holes of passing pillar or dividing plate, thereby perhaps cut off the sheet metal barrier film and separate a series of bolts connection centre bores of aiming in line, described bolt connects and described dividing plate is connected with post or the connector of pillar subordinate, perhaps waits and realizes fusible performance by discharging some intermediate connector.
Be not equipped with under the situation of distance member at described metal protection fence, the used only fusible mechanism of the present invention makes described post pass the bolted head of fence, by the described bolt head of above-mentioned behavior pass described fence hold the elongation centre bore of described connection the time shut down.But the controllability of this mechanism is not fine and the load that causes fusibleness alters a great deal because of the difference of bolt and repeatability is not fine.
During the passenger vehicle vehicle collision, dividing plate has been realized its vehicle and the separated function of fence and the height of the fence that kept coming in contact with the collision vehicle, also makes the distortion of described roll guard be reduced to bottom line (lateral operation width).But dividing plate also has following shortcoming:
(i) width that dividing plate has been widened roll guard is set between fence and post, thereby the curb space outside being positioned at roll guard has and will produce serious space problem in limited time and cause a new traffic safety problem.
(ii) since the dividing plate horizontal arrangement between fence and post, can cause like this head of described post have a kind of dynamically " lever " thus effect transmits from fence power from distortion to post, described power is because passenger vehicle imposes on the load of fence when hitting roll guard with certain speed.
Dividing plate (iii) is installed has been increased the total material cost and the installation workload of metallic safety protection fence.
In the roadside or safety island with a kind of narrow, but firmer does not have dividing plate more cheap metal protection fence, in particular for the passenger vehicle impingement designed, need be with a kind of special coupling assembling between fence and post, described special coupling assembling can offer the controlled fusing system of a kind of height of system (described coupling assembling can discharge and it can accurately discharge immediately) in the collision order when default load value reaches.Thereby described fusing system can in time respond when roll guard and passenger vehicle are bumped and guarantee following advantage:
Thereby a) prevent to collide passenger vehicle and described post tied up in knots described pillar is broken away from car by the back, make its generation lateral deformation and sail out of them because vehicle moves along the roll guard warp-wise.In order to reach this effect, described post can be produced before disengaging reverse the flexible deformation response, in case vehicle and described post bump like this, described post just can produce enough and suitable distortion, therefore will take place significantly crooked at its point of implanting ground when described cylinder remains on the described like this post integral body in the minimum position of its inertia to the zone of passenger vehicle.
B) thus prevent that described post from taking place backward and vertical and top and the vehicle that makes roll guard that drag down keeps in touch towards ground described fence during distortion downwards, and then the assurance passenger vehicle collide during with collide after stability.
C) before or after the coupling assembling that guarantee to connect described post and fence discharges immediately when bumping rather than collides, for load and the distortion that collision is produced sends joint pin as much as possible to greatest extent to, thereby limit the maximum transversal distortion of described roll guard.Too early fusing can increase the lateral deformation of described roll guard and may cause clamping vehicle because the motion of transverse movement proportion position rotating is more preponderated.If fusing is delayed, described fence will be by the undue step-down that dragged down by described post, and described vehicle also can become unstable and may pass through described roll guard.The maximum transversal distortion also can increase in this case.
Summary of the invention
Therefore the object of the present invention is to provide a kind of connection fence, crossbeam or horizontal rails are to the bolted fusible mechanism of the metallic safety protection fence of vertical support column, controlled release or disengaging will take place when surpassing predetermined threshold value in the power that described mechanism sends roll guard at vehicle generation side collision, it has produced the technological merit of prior art distance member but has avoided the shortcoming of distance member, described mechanism has promoted performance and has made described metal protection fence narrower, firmer and more cheap.
For obtaining effect and the advantage that above-mentioned and present technology is compared, the connected system of producing a kind of new metallic safety protection fence that described fence and column assembly is directly coupled together with bolt is just necessary, in time and the controlled fusing characteristics of intensity of force, there is following technological merit in described system to the main feature of described system in it:
When 1) preventing the roll guard of described vehicle by lateral deformation and vehicle stumbled by the post after breaking away from when leaving the roll guard warp-wise and travelling.Before breaking away from, the distortion flexible deformation will be arranged in order to reach the described post of this effect, in case vehicle and described post bump like this, described post just can produce enough and suitable distortion, described like this cylinder to the zone of passenger vehicle just in the minimum inertia position, significantly crooked thereby described post will take place at the point of implanting ground.
2) thus prevent that described post from taking place backward and vertical and top and the vehicle that makes roll guard that drag down keeps in touch towards ground described fence during distortion downwards, and then the assurance passenger vehicle collide during with collide after stability.
3) guarantee that the coupling assembling that connects described post and fence discharges before or after (" fusing " takes place) rather than the collision immediately when bumping, for load and the distortion that collision is produced sends joint pin as much as possible to greatest extent to, thereby limit the maximum transversal distortion of described roll guard.Too early fusing can increase the lateral deformation of described roll guard and may cause clamping vehicle because the motion of transverse movement proportion position rotating is more preponderated.If fusing is delayed, described fence will be by the undue step-down that dragged down by described post, and described vehicle also can become unstable and may pass through described roll guard.The maximum transversal distortion also can increase in this case.
Described fusible bolt connection 3 of the following description of the present invention and described metallic safety protection fence are one, described safety protection fence comprises: as shown in figures 1 and 3, by the continuous horizontal collision assembly that continuous fence of one or more levels or railing 1 form, described assembly is supported by fusible connection 3 by vertical supporting assembly that inserts ground 4 at a certain distance or vertical column 2.
As shown in Figure 4, described fusible bolt connects 3 and comprises metal bolts 5, shank of bolt 10, bolt head 9 and preferably cylindric uniform parts 11 or the specific region that is provided with to set a distance from bolt head, described zone or part 11 are through special machinery, heat or chemical treatment, thus the other parts of the described shank of bolt 10 of destruction mechanics resistance ratios in described part 11 or zone are much lower.The low mechanical resistance part 11 of described shank of bolt 10 or zone be positioned at the metal protection fence that connects described fence 1 and post 2 metal bolts 5 bolt head 9 below, be called " fusible portion ", its feature is, described bolt 5 is called as " fusible bolt " and connection 3 between fence 1 and post 3 is called as " connection of fusible bolt ".
The characteristics of described fusible bolt 5 have been fusible portion 11, when after described connection 3 installations between fence 1 and the post 2, the part that described fusible portion has a low mechanical resistance is arranged on the ad-hoc location as shown in Figure 9 of described shank of bolt 10, described fusible portion 11 is positioned at about position intermediate of the join domain that connects fence 1 and post 2, as shown in Figure 5, when passenger vehicle and roll guard generation side collision, the shearing force that collision is produced can influence the shank of bolt 10 that connects fence 1 and post 2, and described shearing force almost all is applied to described fusible portion or zone 11.
In fact, as shown in Figure 5, when passenger vehicle and described roll guard generation side collision, the lateral force F that applies can cause described roll guard and produce a pair of reaction force T, on the one hand, be out of shape backward and downwards owing to firmly implant ground 4 described post 2 beginnings, on the other hand, described fence 1 is upwards pushed away by passenger vehicle and has produced power T that makes progress that acts on described fence 1 and the downward power T that acts on described post 2.The result of two power T makes 3 the shank of bolt 10 of being connected that connects described fence 1 and described post 2 be subjected to shearing force.
The shearing force of being collided described roll guard generation by passenger vehicle concentrates on the specific part 11 of the bolt connecting rod 10 that connects described fence 1 and described post 2, thereby described connecting bolt 5 is ruptured in the part 11 with low mechanical resistance.
As shown in Figure 2, afterwards, the fusible mechanism of metal protection fence allow to connect 3 the release of being connected of described fence 1 and described post 2.Passenger vehicle penetrates described roll guard certain distance vehicle generation then reorientation in side direction and rolls described system away from.The precise time order and the intensity of force of collision, Fuse assembly breaks away from the necessary factor that the order that takes place is described roll guard response collision order, in order to obtain appropriate responsive, described fusibility has high controllability, and is predictable and repeatable just necessary.
The technological merit that fusible of the present invention mechanism is produced is: machinery or chemically treated intensity to fusible part of bolt or zone 11 have been determined the final mechanical resistance values of described part or zone 11 fractures, thereby also cause the different of described value and produced the nominal mechanics Resistance Value of described bolt 5.Therefore, the processing by varying strength is carried out in described part or zone just can be carried out foregoing adjusting to separation time of described connection 3 and fusing or disengaging intensity of force.
To the described part of the shank of bolt 10 that is connected 3 bolt 5 of the fence 1 of metallic safety protection fence and post 2 or zone 11 processing of carrying out is to become the fusible zone for the mechanical resistance that reduces described part or zone and it, described processing is machinery or machined into processing preferably, above-mentioned processing can make described part or zone become cylinder groove 12, the diameter of described cylinder groove is littler than described shank of bolt 10, as shown in Figure 6, be positioned at from bolt head 9 ad-hoc locations.In this case, for the shank of bolt of default composition material, described groove 12 and the relation of the diameter of described shank of bolt 10 other parts have been determined the different of the value of fusing power and fusible portion or regional mechanical resistance and bolt nominal mechanical resistance.
As shown in Figure 8, it is to cut one or two or a plurality of groove 12 with a certain distance from the place of bolt head 9 on shank of bolt 10 that the another kind of variable construction machine that obtains fusing property is handled ", the axle of described groove vertically or slightly favours the axle of described shank of bolt 10.Described groove 12 " can all be positioned at described bolt same uniform part shown in Fig. 8 a, or the different piece that also can be positioned at described bolt thick and fast is shown in Fig. 8 c.In this case, for the shank of bolt of default composition material, described groove 12 " number and the degree of depth and the relation of the diameter of the other parts of described shank of bolt 10 determined the different of the value of fusing power and fusible portion or regional mechanical resistance and bolt nominal mechanical resistance
The fusable link 3 that connects described fence 1 and post 2 is to be positioned at obtaining from the fusible portion of bolt head 9 specific ranges or the fusible bolt 5 in zone 11 on the shank of bolt 10 by having, therefore shank of bolt 10 centre bore 14 that successfully passes the centre bore 13 of fence 1 and pass post 2 has reached this effect, as shown in Figure 9, the position of the described fusible in back is installed in connection 3 between fence and post, and described connection 3 can comprise that the bolt that is positioned at of as shown in figure 13 preferably rectangle connects under 3 the bolt head 9 and the flat shim 6 above the fence 1.Described flat shim penetrates when being passed the centre bore of described flat shim 6 by described shank of bolt 10.Described fusible bolt connects 3 also can be furnished with second flat shim 7 that has centre bore 17 equally between post 2 and locking nut 8 as shown in figure 14.
The advantage of this technical scheme that cooperates with flat shim 6 and 7 with fusible bolt 5 is, can carry out local stiffening avoiding these assemblies to fence 1 and post 2 around the zone of fusible connection 3, thereby fence and pillar because of producing local distortions at centre bore 13 and 14, collision influence they and 3 the assemble ability of being connected that is equipped with fusible bolt 5 respectively.The centre bore 13 of described fence 1 or post 3 and 14 local distortion can absorb a part, and to send fusible 3 the controllability of being connected to be not good power, destruction has also been destroyed the uncommon shear property of described power in the fusible portion of described bolt or the concentrated phenomenon of deformation force in zone 11.All these influences (dispersion of conveying capacity and the loss of shearing force) can be upset control and described bolted fusing opportunity of the intensity of forces that apply.
Fusible bolt between fence 1 and post 2 of the present invention connects 3, as previously mentioned, when only being used for as shown in Figure 3 the metallic safety protection fence of forming by continuous fence 1 of level and the vertical supporting pillar 2 that is provided with at a certain distance, has significant technological merit.Under preceding described situation of not conflicting, as shown in figure 11, also have the fusable link 3 that is connected the metallic safety protection fence that back support 25 that 26 (preferably non-fusibility connections) are connected with described post 2 forms by bolt to have above-mentioned technological merit equally by fence 1 and post 2.
As shown in figure 12, the fusible bolt of the metallic safety protection fence with two sides symmetry fence 1 of the both sides that identical technological merit of the present invention equally can be by being arranged on post 2 connects 3 and is achieved.
At last, if described safe fence be for the contention grade more designed than the high slightly type of vehicle of rank that is used to limit passenger vehicle, for example, be need restriction light truck or motor bus design, their center of gravity all is positioned at than the high a lot of position of passenger vehicle, as shown in figure 10, installation intermediate member 15 is just necessary between fence 1 and post 2.The size of described intermediate module 15 is not sufficient to make it to become real distance member, because its effect just makes described fence 1 with respect to post 2 slight vertical displacement take place, and in order to compensation because vehicle and the caused imbalance of roll guard height of C.G. difference, thereby the stability of vehicle is kept and is prevented that vehicle from passing described safety protection fence.In this case, the bolt between fence 1 and the intermediate member 15 connect 3 ' and be connected 3 at parts 15 with bolt between the post 2 ", selectable, perhaps connect 3 ' and 3 " while all is that the fusible type is connected.Described structure is in fusible connection 3 ' or 3 " allow described fence that displacement upwards takes place before breaking away from.
The another kind of structure that optionally obtains the described connection 3 between fence 1 and post 2 of controlled fusing is to realize by the bolt 5 that utilizes fusible pad 18 to have on the place of bolt bar 10 fusible part or zone 11, as shown in figure 15.Described fusible pad 18 is installed in the subfacies of bolt 5 but is positioned on the described fence 1, and described pad has a tolerance clearance of passing its centre bore 19 behind the active force that stands the generation of vehicle collision fence that can make bolt 5.
Figure 15 has showed how the non-fusible shank of bolt 20 of described bolt 5 successfully passes, the centre bore 19 of described fusible pad 18, the centre bore 13 of fence 1, the centre bore 14 of post 2, the centre bore 17 of flat shim 7 and locking nut 8.
Description of drawings
The following accompanying drawing that invests behind the manual is replenishing and providing the better reference of understanding of actual practical preferred implementations more of the present invention manual.Described accompanying drawing is that just to be used for illustration be not to be used to limit the present invention for described manual part of the whole and described accompanying drawing:
Fig. 1 has showed the vertical cross section of metallic safety protection fence, and described safety protection fence comprises continuous horizontal fence 1, and the vertical column 2 that described fence is inserted into ground 4 connects 3 supports by bolt.
Fig. 2 comprises Fig. 2 a, Fig. 2 b, and Fig. 2 c has showed that the typical sequence and the fusible bolt between described fence 1 and described post 2 that incident take place when car during with metallic safety protection fence generation side collision are connected 3 performance.
Fig. 3 is the lateral view of metallic safety protection fence, described metal security fence comprises continuous horizontal fence 1, described fence 1 is connected 3 with the corresponding vertical column 2 that inserts ground 4 by fusible bolt and links together, described fusible bolt connects 3 and comprises fusible bolt 5, is positioned at the rectangle flat shim 6 below the bolt head and is positioned at square flat shim 7 below the locking nut 8.
Fig. 4 is vertical sectional elevation of fusible metal bolt 5, represents bolt head 9 respectively, shank of bolt 10 and fusible part 11.
Fig. 5 is the diagram of Fig. 5 a and Fig. 5 d, be connected the power F of 3 bolt 5 and cause described fence 1 upwards and the downward pressure T of described post 2 subsequently when car conducts to described fusible bolt from described car during with described safety protection fence generation side collision, above-mentioned power constitutes the shearing force that the bolt that connects described fence 1 and described post 2 is connected the fusible part 11 of 3 shanks of bolt 10.
Fig. 6 comprises Fig. 6 a and Fig. 6 b, has showed the fusible metal bolt 5 with fusible part, and described fusible part is specially out being positioned at shank of bolt under the bolt head 9 10 and gives the cylindrical trench 12 of certain portions.Fig. 6 a has showed the section part of described fusible bolt 5 and Fig. 6 b has showed the 3-D view of same bolt.
Fig. 7 comprises Fig. 7 a, and Fig. 7 b and Fig. 7 c have showed the fusible metal bolt 5 with fusible part, and described fusible part is specially out the specific part and a pair of recess 12 ' vertical with described shank of bolt 10 of shank of bolt 10 under described bolt head 9.Fig. 7 a has showed that the same part in the section of described fusible bolt 5 has two recesses 12 ', Fig. 7 b is the 3-D view with the same bolt of Fig. 7 a, Fig. 7 c showed two of the section that is positioned at described fusible bolt 5 open in the different piece of described shank of bolt 10 but from two very near recesses 12 '.
Fig. 8 comprises Fig. 8 a, and Fig. 8 b and Fig. 8 c have showed the fusible metal bolt 5 with fusible part, and described fusible part is specially out the specific part and a pair of groove 12 vertical with described shank of bolt 10 of shank of bolt 10 under described bolt head 9 ".Fig. 7 a has showed that the same part in the section of described fusible bolt 5 has two grooves 12 "; Fig. 7 b is the 3-D view with the same bolt of Fig. 7 a, Fig. 7 c showed two of the section that is positioned at described fusible bolt 5 open in the different piece of described shank of bolt 10 but from two very near grooves 12 ".
Fig. 9 comprises two width of cloth figure, Fig. 9 a and Fig. 9 b have showed that respectively metallic safety protection fence is positioned at the fusible bolted exploded view and the assembling drawing of fence 1 and post 2, described fusible bolt connects and comprises the fusible bolt 5 with fusible part 11, described bolt can successfully pass the centre bore 16 of the flat shim 6 that is positioned under the bolt head, the centre bore 13 of fence 1, the centre bore 14 of post 2 is positioned at the centre bore 17 of the flat shim 7 under the described connection locking nut 8.
Figure 10 has showed the vertical cross section of metallic safety protection fence, and described metallic safety protection fence comprises continuous horizontal fence 1, and described fence is supported by the vertical column 2 that inserts ground 4, and described fence and vertical column link together by intermediate member 15.Wherein be positioned at the connection 3 ' and/or the connection 3 between described intermediate member and described vertical column of described fence and described intermediate member " be that fusible type connects.
Figure 11 has showed the vertical cross section of metallic safety protection fence, described metallic safety protection fence comprises continuous horizontal fence 1, described fence is supported by the vertical column 2 that inserts ground 4, described fence is connected 3 with vertical column by fusible bolt and links together, and also has by connecting the continuous back support 25 that 26 described vertical columns couple together.
Figure 12 has showed the vertical cross section of double-sided metal safety protection fence, described double-faced safety roll guard comprises two continuous horizontal fences 1 and vertical column 2, described fence is arranged in each limit of described vertical column symmetrically, and described fence connects 3 by fusible bolt to be supported by described vertical column, and described vertical column 2 inserts ground 4.
Figure 13 has showed the graphics of rectangle flat shim 6, and described pad is positioned at the following of described fusible bolt head and the centre bore 16 of a lengthening is arranged.
Figure 14 has showed the graphics of square flat shim 7, and described pad is positioned at the following of described molten bolt head and the centre bore 17 of a circle is arranged.
Figure 15 comprises Figure 15 a and Figure 15 b, showed fusible bolted exploded view and the assembling drawing of metallic safety protection fence between fence 1 and post 2 respectively, described fusible bolt connects the combination that comprises non-fusible bolt 5 and fusible pad 18, the shank of bolt 20 of described bolt can successfully pass the centre bore 19 that is positioned at the fusible pad 18 below the bolt head, the centre bore 13 of fence 1, the centre bore 14 of described post 2 and the centre bore 17 that is positioned at the flat shim 7 below the locking nut 8 of described connection.
The specific embodiment
Fig. 1,3,6,9,11,12,13 and 14 have showed a kind of detailed embodiment of the present invention, the fence 1 and the metal bolts between the described post 2 that comprise metallic safety protection fence connect 3, described metal bolts connects and comprises the preferably metal bolts 5 of round end, preferably rectangle be positioned at flat metallic gasket 6 below the bolt head 9, another is positioned at the preferably square flat metallic gasket under the metal latch jack panel 8, described bolt 5 has preferably columniform part or zone 12 from bolt head 9 specific ranges on its shank of bolt 10, the diameter in described part or zone is less than the diameter of shank of bolt 10 and be channel shaped.Described zone is called as fusible part or zone, because it is positioned at the zone that described shank of bolt 10 and described bolt 5 have minimum mechanical resistance.The title in described zone and then expand to described bolt and be called as fusible bolt.
As shown in Figure 3, the shank of bolt of described fusible bolt 5 can successfully pass the flat shim 6 that is positioned under the described bolt head 9, fence 1, and post 2, flat shim 7 are connected 3 assembly nut 8 with lock bolt.More precisely, as shown in Figure 9, described shank of bolt 10 successfully passes the centre bore 16 of described rectangle flat shim 6, the centre bore 13 of described fence 1, the centre bore 14 of described post 2, the centre bore 17 of described square flat shim 7 and the centre bore of described locking nut 8.
As shown in Figure 9, along the position in the fusible part of the shank of bolt 10 of described fusible bolt 5 or zone 12 in case determine, described connection 3 between described fence 1 and described post 2, thus the fusible part of the channel form of processing or zone 12 just are limited to approximately zone between the centre bore 14 of the centre bore 13 of described fence 1 and described post 2 and can be thought the shank of bolt 10 of the bolt 5 that the theoretical surface meeting " cut-out " that separates described fence 1 and described post 2 links together them in fusible area 12 on the described shank of bolt 10.
Described controlled fusing bolt between fence 1 and post 2 connects 3 and is applied to including only by the fixed range setting and insert the metallic safety protection fence that the horizontal fence 1 of connection that the vertical column 2 on ground 4 supports is formed as shown in Figure 1 simultaneously, also be applied to support 25 metallic safety protection fence after the having aforementioned components and having one or two continuous horizontal that is connected in described post 2 back as shown in figure 11, also can be applied to the double-sided metal fence, also be, as shown in figure 12, be symmetricly set on the fence of two fences, 1 composition on described post 2 both sides.

Claims (16)

1. one kind is used to prevent the bolt connecting mechanism horizontal fence and vertical supporting pillar between of vehicle at the metallic safety protection fence of roadside or safety island generation side collision, it is characterized in that, the described connection (3) that makes one of at least that the bolt that fence (1) is connected to described post (2) connects in some assemblies of (3) has the characteristics of controlled fusing performance when running into vehicle collision, These characteristics make described be connected intensity of force that the described fence of vehicle collision sends described connection (3) to when reaching preset value separately or discharge.
2. the bolt connecting mechanism between horizontal fence and vertical supporting pillar that is used to prevent vehicle at the metallic safety protection fence of roadside or safety island generation side collision as claimed in claim 1, it is characterized in that the shank of bolt (10) that is positioned at the bolt (5) of the described bolt connection (3) between described fence (1) and the post (2) has low part or zone (11) of other parts of the described shank of bolt of mechanics resistance ratios (10) for the place of set a distance from described bolt head (9).
3. the bolt connecting mechanism between horizontal fence and vertical supporting pillar that is used to prevent vehicle at the metallic safety protection fence of roadside or safety island generation side collision as claimed in claim 2, it is characterized in that, by the specific part of bolt (5) or zone (11) being imposed machinery, machinery is being carried out to whole shank of bolt in resulting part or zone (11) with low mechanical resistance of heat or chemical treatment, and heat or chemical treatment are to obtain to carry out before the identical mechanical resistance.
4. the bolt connecting mechanism between horizontal fence and vertical supporting pillar that is used to prevent vehicle at the metallic safety protection fence of roadside or safety island generation side collision as claimed in claim 3, it is characterized in that, the shank of bolt (10) that is positioned at the bolt (5) of the bolt connection (3) between described fence (1) and the described post (2) has cylindrical trench shape part or zone (12) for the place of set a distance from described bolt head (9), and the diameter of described part or zone (12) is littler than the diameter of described shank of bolt (10).
5. the bolt connecting mechanism between horizontal fence and vertical supporting pillar that is used to prevent vehicle at the metallic safety protection fence of roadside or safety island generation side collision as claimed in claim 3, it is characterized in that, the shank of bolt (10) that is positioned at the bolt (5) of the bolt connection (3) between described fence (1) and the described post (2) has a recess (12 ') vertical or that tilt a little of one or more and described shank of bolt (10) for the place of set a distance from described bolt head (9), and described recess (12 ') is positioned at the same uniform part of described shank of bolt (10).
6. the bolt connecting mechanism between horizontal fence and vertical supporting pillar that is used to prevent vehicle at the metallic safety protection fence of roadside or safety island generation side collision as claimed in claim 5, it is characterized in that, it is vertical or tilt a little to open the axle of recess (12 ') and described shank of bolt (10) on described shank of bolt (10), is positioned at two or more different intensive being set together of described recess (12 ') of part uniformly of described shank of bolt (10).
7. the bolt connecting mechanism between horizontal fence and vertical supporting pillar that is used to prevent vehicle at the metallic safety protection fence of roadside or safety island generation side collision as claimed in claim 3, it is characterized in that, be positioned at the shank of bolt (10) that bolt between described fence (1) and the described post (2) connects the bolt (5) of (3) and have the spool vertical of one or more and described shank of bolt (10) or inclined notches formed (12 ") a little for the place of set a distance from described bolt head (9), described groove (12 ") is positioned at the same uniform part of described shank of bolt (10).
8. the bolt connecting mechanism between horizontal fence and vertical supporting pillar that is used to prevent vehicle at the metallic safety protection fence of roadside or safety island generation side collision as claimed in claim 7, it is characterized in that, it is vertical or tilt a little to open the axle of groove on described shank of bolt (10) (12 ") and described shank of bolt (10), is positioned at intensive being set together of two or more different described grooves of part uniformly (12 ") of described shank of bolt (10).
9. as the arbitrary described bolt connecting mechanism horizontal fence and vertical supporting pillar between of vehicle that be used to prevent of claim 1 to 8 at the metallic safety protection fence of roadside or safety island generation side collision, it is characterized in that, be positioned at low part of other parts that shank of bolt (10) that described bolt between described fence (1) and the post (2) connects the bolt (5) of (3) has the described shank of bolt of mechanics resistance ratios (10) for the place of set a distance from described bolt head (9) or zone (11) (12) (12 ') (12 "); have the part of low mechanical resistance or zone (11) (12) (12 ') (12 ") simultaneously and be positioned at the centre bore (13) of described fence (1) and the centre bore (14) of described post (2) in case bolt connects (3) assembling, centre bore (13) all is the ingredient of described connection the (3) with (14), sends mechanical breaking that power that the bolt that is positioned between fence (1) and the post (2) is connected (3) causes shank of bolt (10) to and can have the part of low mechanical resistance or zone (11) (12) (12 ') (12 ") at described shank of bolt and take place when vehicle and described metal protection fence bump.
10. as the arbitrary described bolt connecting mechanism horizontal fence and vertical supporting pillar between of vehicle that be used to prevent of claim 1 to 8 at the metallic safety protection fence of roadside or safety island generation side collision, it is characterized in that, be positioned at bolt between fence (1) and the post (2) and connect (3) and comprise and be positioned at below the bolt head (9) and the rectangle flat shim (6) on the described post (2).
11. as the arbitrary described bolt connecting mechanism horizontal fence and vertical supporting pillar between of vehicle that be used to prevent of claim 1 to 8 at the metallic safety protection fence of roadside or safety island generation side collision, it is characterized in that, be positioned at bolt between fence (1) and the post (2) and connect (3) and comprise square, rectangle or the circular flat shim (7) that is positioned at below the locking nut (8) and on the described post (2).
12. as the arbitrary described bolt connecting mechanism horizontal fence and vertical supporting pillar between of vehicle that be used to prevent of claim 1 to 8 at the metallic safety protection fence of roadside or safety island generation side collision, it is characterized in that described connection (3) only is used for by continuous horizontal fence (1) and supports the metallic safety protection fence that vertical column (2) that described fence was provided with and inserted ground (4) is at a certain distance formed.
13. as the arbitrary described bolt connecting mechanism horizontal fence and vertical supporting pillar between of vehicle that be used to prevent of claim 1 to 8 at the metallic safety protection fence of roadside or safety island generation side collision, it is characterized in that described connection (3) is used for the continuous horizontal fence of being supported by the vertical column that is provided with and inserts ground (4) at a certain distance (2) (1) and upward by connection (26) one or more backs is installed at described post (2) supporting the metallic safety protection fence that (25) are formed.
14. as the arbitrary described bolt connecting mechanism horizontal fence and vertical supporting pillar between of vehicle that be used to prevent of claim 1 to 8 at the metallic safety protection fence of roadside or safety island generation side collision, it is characterized in that, described connection (3) is used for metallic safety protection fence, described metallic safety protection fence comprises the continuous symmetrical horizontal fence (1) in the two sides of being supported by a series of vertical columns (2) that are provided with and insert ground (4) at a certain distance, and described two sides fence (1) is installed in each limit of described post (2) symmetrically.
15. as the arbitrary described bolt connecting mechanism horizontal fence and vertical supporting pillar between of vehicle that be used to prevent of claim 1 to 8 at the metallic safety protection fence of roadside or safety island generation side collision, it is characterized in that, described roll guard comprises the small size intermediate member (15) that is installed between described fence (1) and the described post (2), wherein fusible bolt connection (3 ') is installed between described fence (1) and the described intermediate member (15), or fusible bolt connects (3 ") and is installed between described intermediate member (15) and the described post (2), or connection (3 ') and (3 ") are installed simultaneously.
16. the bolt connecting mechanism between horizontal fence and vertical supporting pillar that is used to prevent vehicle at the metallic safety protection fence of roadside or safety island generation side collision as claimed in claim 1, it is characterized in that, being positioned at bolt between described fence (1) and the described post (2) connects and to comprise and be positioned under described connecting bolt (5) head and the fusible pad of U-shaped (18) on the described fence (1), when vehicle collision impose on described connection surpass set-point the time, described pad (18) is pierced through fully by the head of described bolt (5), thereby causes that the mechanism that connects described fence (1) and post (2) separates or breaks away from.
CNA200910145723XA 2008-05-28 2009-05-31 The fusible bolt connecting mechanism of metallic safety protection fence Pending CN101591892A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200801139U ES1068049Y (en) 2008-05-28 2008-05-28 FUSE MECHANISM FOR THE SCREWED UNION BETWEEN THE HORIZONTAL FENCE AND THE VERTICAL SUPPORT POST OF METAL SAFETY BARRIERS FOR VEHICLE CONTAINMENT, FOR USE IN MARGINS AND MEDIUM ROADS
ESU20081139 2008-05-28

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EP (1) EP2128342B1 (en)
CN (1) CN101591892A (en)
AR (1) AR071711A1 (en)
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CL (1) CL2008003273A1 (en)
CR (1) CR10630U (en)
DO (1) DOP2010000255A (en)
EA (1) EA201001741A1 (en)
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MX2010009711A (en) 2010-09-30
PT2128342E (en) 2015-05-22
EP2128342A2 (en) 2009-12-02
US20110084246A1 (en) 2011-04-14
DOP2010000255A (en) 2010-11-15
CL2008003273A1 (en) 2010-09-21
CR10630U (en) 2009-07-13
ES1068049U (en) 2008-08-01
ES1068049Y (en) 2008-11-01
AU2009253010A1 (en) 2009-12-03
NZ588501A (en) 2013-03-28
EA201001741A1 (en) 2011-04-29
ES2535496T3 (en) 2015-05-12
EP2128342B1 (en) 2015-01-28
PE20100238A1 (en) 2010-04-08
WO2009144334A1 (en) 2009-12-03
EP2128342A3 (en) 2011-04-06
AR071711A1 (en) 2010-07-07

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Application publication date: 20091202