CN101994295A - Overhead panel - Google Patents
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- CN101994295A CN101994295A CN2010105116468A CN201010511646A CN101994295A CN 101994295 A CN101994295 A CN 101994295A CN 2010105116468 A CN2010105116468 A CN 2010105116468A CN 201010511646 A CN201010511646 A CN 201010511646A CN 101994295 A CN101994295 A CN 101994295A
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Abstract
The invention provides an overhead panel, which comprises a fixed framework, at least one plate and a resetting mechanism, wherein the framework limits a plane; the plate is provided with a front, a back and a middle surface between the front and the back; the middle surface comprises an area center and a middle line passing through the area center; the plate is articulated on the framework and can rotate around a pivotal axis parallel to the middle line; the orthographic projection line of the pivotal axis on the middle surface deviates from the middle line in certain distance, called as eccentric distance; the plate rotates around the pivotal axis together with wind under the action of a windward blowing force; and the resetting mechanism for inhibiting the wind-following rotation of the plate is arranged between the plate and the framework.
Description
Technical field
The present invention relates to a kind of overhead panel.
Background technology
The overhead billboard in existing a kind of big plane, owing to will resist uncommon high wind, strong gusts of wind especially, its support frame and pedestal will be wasted a lot of constructional materialss; And at strong wind weather, normally strong wind airborne dust, violent storm or The cold wind penetrates one's bones weather, the pedestrian is not in the mood for seeing advertisement on these billboards.
Summary of the invention
In order to overcome above-mentioned shortcoming, the invention provides a kind of overhead panel, comprising:
A fixing framework and at least one plate, described framework limits a framework face, described plate has a front, a back side and the middle plane between front and back, described meta bread contains a centre of area and a neutrality line that passes this centre of area, described plate is pivotally attached to described plate is rotated around a pivot axis that parallels with described neutrality line, described pivot axis is opened certain distance between the orthography line on the plane and the described neutrality line partially in described, be referred to as eccentric throw, described plate is tending towards under the power effect doing to rotate with the wind around described pivot axis blowing down with the wind;
A bias unit, be used for from described framework, applying the rotation with the wind that a bias force is resisted described plate to described plate, the trend of rotating with the wind when described plate surpasses the do time spent of described bias force to plate, and described plate just makes to change with the wind pendulum around described pivot axis; With
A neutral position stop device that is fixed on the described framework is used for keeping out the effect of described bias force and makes the plane of described plate be parallel to described framework face.
The invention provides another kind of overhead panel, comprising:
A fixing framework and at least one plate, described framework limits a framework face, described plate has a front, a back side and the middle plane between front and back, described meta bread contains a centre of area and a neutrality line that passes this centre of area, described plate is pivotally attached to described plate is rotated around a pivot axis that parallels with described neutrality line, described pivot axis is opened certain distance between the orthography line on the plane and the described neutrality line partially in described, be referred to as eccentric throw, described plate is tending towards under the power effect doing to rotate with the wind around described pivot axis blowing down with the wind; With
One is installed in the resetting-mechanism that the described plate of inhibition rotates with the wind between plate and the framework.
Description of drawings
Figure 1A and B illustrate an embodiment of the overhead billboard of pivoted of the present invention.
Fig. 2 illustrates that the billboard back side facings the wind and its pivot axis is higher than the embodiment of its neutrality line.
Fig. 3 illustrates that the billboard back side facings the wind and its pivot axis is lower than the embodiment of its neutrality line.
Fig. 4 illustrates positive the facining the wind of billboard and its pivot axis is lower than the embodiment of its neutrality line.
Fig. 5 and 6 illustrates a kind of resetting-mechanism of pivoted billboard of the present invention.
Fig. 7 illustrates another resetting-mechanism of pivoted billboard of the present invention.
Shown in Figure 8 is the another embodiment of resetting-mechanism of the present invention.
Shown in Figure 9 is an embodiment again of resetting-mechanism of the present invention.
Shown in Figure 10 is the embodiment that advances of resetting-mechanism of the present invention.
Figure 11 illustrates another embodiment again of resetting-mechanism of the present invention.
Figure 12 illustrates the another embodiment in addition of resetting-mechanism of the present invention.
Figure 13 and 14 illustrates the in addition embodiment again of resetting-mechanism of the present invention.
Figure 15 illustrates a kind of resetting-mechanism that utilizes magnetic force between the magnet.
Figure 16 illustrates the embodiment more again of resetting-mechanism of the present invention.
Figure 17 A and B illustrate another embodiment again of resetting-mechanism of the present invention respectively.
Figure 18 A and 18B illustrate the resetting-mechanism embodiment that the present invention adopts the pretension spring.
One pivoted shown in Figure 19 let out the air curtain wall.
Figure 20 illustrates the embodiment that advances of resetting-mechanism of the present invention.
What Figure 21 illustrated resetting-mechanism of the present invention advances an embodiment again.
The specific embodiment
Suppose an overhead billboard that is installed on the frame construction (hereinafter to be referred as framework), comprise that at least one is installed to the plate shown in Figure 1A and Figure 1B 10 on this framework, this plate has a front 11 and a back side 12 and the middle plane 15 between front 11 and 12 middles, the back side.Such plate 10 can constitute a made of one piece Billboard on framework.Certainly, the such plate 10 of polylith can be combined into a spliced Billboard on framework, and this Billboard is to be determined by the overall profile of framework, might as well be referred to as the framework face at this.Certainly, the framework face also can be made plane or a directrix plane and even a curved surface that is parallel to described Billboard.
Supposition framework face is in the face of the prevailling wind of location now, and strong wind and blast particularly prevail.Wind-force F affacts on the front 11 of plate 10, and its point of resultant force is positioned at A point on the plate front 11, and the A point is called positive 11 the centre of area at this.Owing to wind-force can be regarded as the parallel force of distribution, also the A point can be regarded as the point on the middle plane 15 of plate 10.
From the back side 12 1 sides of plate 10, by a support 20 with plate on 10 pivotal mounts 30 that are pivotally connected on the framework; The pivot central point represents that with O pivot axis is represented with the O-O straight line.Figure line shown in the number in the figure G is represented the fixed connection place of pivotal mounts 30 and framework.
On middle plane 15, pass the straight line A1-A2 that standardized of centre of area A point is parallel to pivot axis O-O, be referred to as the neutrality line of plate 10.Orthography line and the neutrality line A1-A2 of pivot axis O-O on middle plane opens certain distance partially, referred to herein as eccentric throw.
When the front 11 of plate 10 was subjected to blowing power F down with the wind, plate 10 will rotate around pivot axis O-O with the wind, and rotation direction is along the centre of area A direction of servo-actuated with the wind.When wind-force for example during strong breeze, does not wish that plate 10 rotates with the wind less than a predetermined strength; Need from framework, to apply a reverse bias moment M for this reason and resist wind-force to plate 10.Have only like this when the super described predetermined strength of wind-force, when promptly plate 10 trend of rotating with the wind was greater than the intensity of biasing moment M effect, plate 10 is just real did rotation with the wind; Thus, getd out of the way between plate 10 ability and framework grid or adjacent plate 51 and 52 and let out the air port, strong wind and blast above predetermined strength can not be reimposed on the framework.
At wind-force F during less than described predetermined wind-force intensity, under the effect of biasing moment M, plate 10 can perhaps have the trend of reverse deflection around the reverse deflection of pivot axis O-O, thereby make plate 10 oppositely leave the position parallel with the framework face, this parallel position is referred to as the neutral position of plate 10.In order to prevent that plate 10 from opening from its neutral location bias departing under the moment M effect, can on framework, load onto the neutral position stop device, three stop blocks 41,42 and 43 as shown in Figure 1A and 1B.Obviously, such stop block has been arranged just; Certainly, several such stop blocks to be installed also harmless more.
Stop block 41 directly contacts with plate 10 with 42, and stop block 43 is mounted to directly and contacts with support 20, shown in Figure 1B.
Shown in Figure 1A and 1B, framework axis O-O is arranged to level, in fact also can be arranged to vertical and even tilts.
Although shown in the figure is biasing moment M, also can from framework, apply bias power in fact, as long as this active force can produce biasing moment with respect to pivot axis O-O to support 20 or plate 10.
The device that produces biasing moment can have varied, for example, and torsion spring, leaf spring, extension spring and compressed spring type, magnetic-type and electromagnetic type, fluid pressure type, pneumatic type, hang the pull rope formula of weight from above, or the like.
Shown in Fig. 1 C, pivot axis O-O can be positioned on the plate 10 or within.That is to say the support of having cancelled shown in Figure 1A 20, promptly plate 10 direct pivots install on the frame supporter 30.
Shown in Fig. 1 D, pivot axis or fulcrum O-O also can be installed on the framework, and pivotal mounts 30 then is fixed on the plate 10.In fact, this is very similar to the embodiment shown in Figure 1A.
Shown in Figure 1A and the 1B is positive the facining the wind of plate 10 and its pivot axis is higher than the embodiment of its neutrality line A1-A2.
Shown in Fig. 2 is that plate 10 back sides facing the wind and its pivot axis is higher than the embodiment of its neutrality line.
Shown in Fig. 3 is that plate 10 back sides facing the wind and its pivot axis is lower than the embodiment of its neutrality line.
Shown in Fig. 4 is positive the facining the wind of plate 10 and its pivot axis is lower than the embodiment of its neutrality line.
For the large-scale advertisement plate face that is made of a plurality of plates, these plates are preferably dressed up mutual mechanical linkage.Various mechanical linkage modes are arranged, and this is that those skilled in the art are conceivable easily.
Embodiment shown in Fig. 1-4 can reduce a kind of overhead panel, comprising:
A fixing framework (not shown) and at least one plate 10, described framework limits a framework face, described plate 10 has a front 11, back side 12 and one between front and back meta and 15, described meta bread contains a centre of area A and a neutrality line A1-A2 who passes this centre of area, described plate is pivotally attached to, and can to make described plate on the described framework (can be vertical around a pivot axis O who parallels with described neutrality line, also can be level) rotation, described pivot axis is opened certain distance between the orthography line O-O on the plane and the described neutrality line partially in described, be referred to as eccentric throw, described plate is tending towards under the power F effect doing to rotate with the wind around described pivot axis blowing down with the wind;
A bias unit, be used for from described framework, applying the rotation with the wind that a bias force M resists described plate to described plate, the trend of rotating with the wind when described plate surpasses the do time spent of described bias force to plate, and described plate just makes to change with the wind pendulum around described pivot axis; With
A neutral position stop device 41,42,43 that is fixed on the described framework is used for keeping out the effect of described bias force and makes the plane of described plate be parallel to described framework face.
Better, described eccentric throw is the 5%-50% of plate edge perpendicular to the yardstick D of neutrality line direction, preferably its 5%-25%.
In addition, described plate also can be pivotally attached on the framework by support 20, and described support is fixedlyed connected with plate 10.
A kind of resetting-mechanism of plate 10 is shown as Fig. 5 and 6.This resetting-mechanism comprises that a pivotal axis O who is fixed to above-mentioned plate 10 (not shown), one are fixed in triangle swing span O1-O-O2 on this pivotal axis O, one and are mounted to the thrustor that moves forward and backward along the S direction 60, a stop part 40 and a bias force device (not shown) that applies bias force B to thrustor 60 on framework.Thrustor 60 has a front 61, back 62 and at least one side 63, triangle swing span O1-O-O2 has a limit O1-O2 facing to pivotal axis O, the acting surface that is called swing span, front 61 pushing tows of described thrustor 60 the action edge O1-O2 of swing span O1-O-O2.
When wind-force F blows on the plate 10, just on the swing span O1-O-O2 of pivotal axis O and interlock thereof, produced moment of torsion.Have only the wind-force of working as to surpass a predetermined strength, the bias force B that torque T just can overcome on the thrustor 60 makes swing span O1-O-O2 begin swing, and thrustor 60 beginnings are moved backward.Along with wind-force strengthens, described swing and mobile range further increase, and run into stop part 40 up to the back 62 of thrustor 60.And work as the abatement of wind or when stopping, bias force B promotes thrustor 60 and swing span O1-O-O2 is returned to its initial position, as shown in Figure 5.
In addition, action edge O1-O2 also can cancel.O-O1 and O-O2 are exactly two swing arms that are fixed to pivotal axis O like this.
Observe from thrustor 60, the angle between swing arm O-O1 and the O-O2 can less than, equal or greater than 180 degree (at this moment, the front 62 of thrustor 60 should be an indent) (not shown).
Fig. 7 illustrates another embodiment of resetting-mechanism of the present invention.Different with Fig. 5 and Fig. 6 is, swing span herein is a rectangle or microscler piece, plate or bar O1-O-O2, and stop part 40 and thrustor 60 lay respectively at the relative both sides of swing span O1-O-O2.
Be the another embodiment of resetting-mechanism of the present invention as shown in Figure 8.Fixing a swing arm O1-O2 on the described pivotal axis O, respectively is a flexible cable O1-O3 and O2-O3 at the opposite end O1 and the O2 place of swing arm, and flexible cable O1-O3 and O2-O3 are tied to the O3 node mutually, applies a biasing pulling force B on the O3 binding.Stop part 40 and bind the both sides that an O3 is positioned at swing arm O1-O2.
Be an embodiment again of resetting-mechanism of the present invention as shown in Figure 9.
Be the embodiment that advances of resetting-mechanism of the present invention as shown in figure 10.Different with Fig. 8 and Fig. 9 is the support 20 double swing arm O1-O2 that are in the present embodiment.
Another embodiment again of resetting-mechanism of the present invention is shown as Figure 11.Different with Figure 10 is that the block 41 and 42 in the present embodiment is used for directly keeping off touch panel piece 10 and limits its rotational angle.
As Figure 12 resetting-mechanism of the present invention another embodiment in addition, the plate 10 double usefulness of being swing arm O1-O2 wherein are shown.
As Figure 13 and 14 the in addition embodiment again of resetting-mechanism of the present invention is shown, wherein, applies biasing force to the support 20 swing arm O1-O2 that hold concurrently by thrustor 60.Certainly, thrustor 60 directly applies the biasing force (not shown) to plate 10, and this moment, the biasing force direction was intersected mutually with the pivot biography axis of plate.
Bias force B shown in Fig. 5-14 can be elastic force, gravity or electromagnetic force.
Figure 15 utilization be exactly magnetic force between magnet N1-S1 and the N2-S2.Specifically, fix an arc-shaped magnet N1-S1 on support 20, this magnet also can directly be fixed on (not shown) on the plate 10.Magnet N1-S1 just can rotate with plate 10 or support 20, is called rotor magnet at this.Around or be parallel to rotor magnet N1-S1 and place another piece magnet N2-S2 side by side, this magnet N2-S2 is fixed on the framework, referred to herein as magnets of stator.The air gap between rotor magnet N1-S1 and the magnets of stator N2-S2 is as far as possible little.The inner magnet line of force direction of these two blocks of magnet is opposite, if one of them along clockwise direction, then another is then in the counterclockwise direction.
Figure 16 illustrates the embodiment more again of resetting-mechanism of the present invention.In the present embodiment, the support 20 double swing arm O1-O2 that are bind two weight W1 and W2 the O1 and the O2 place of swing arm respectively by flexible cable.When plate 10 was positioned at center position, two flexible cables all stretched but do not stress, and the tension force that perhaps is subjected to is less than weight of heavy.Like this, have only when the pivot trend of plate 10 is enough to mention weight W1 or W2, plate just begins deflection and lets out wind.
Another embodiment again of resetting-mechanism of the present invention is shown as 17A.As shown in the figure, label 71 and 72 is precompression springs.Be in the neutral position at plate 10, precompression spring 71,72 from both sides near or touch support 20, but all be in the summit of its elongation, support is not produced active force.When the trend that pivots along clockwise direction when plate 10 surpassed the thrusting action of 72 pairs of supports 20 of precompression spring, plate 10 just pivoted along clockwise direction, and at this moment, support 20 just disengages with precompression spring 71.When the trend of plate 10 counter clockwise direction pivots surpassed the thrusting action of 71 pairs of supports 20 of precompression spring, plate 10 just pivoted in the counterclockwise direction, and at this moment, support 20 and precompression spring 72 disengage.As the replacement of Figure 17 A illustrated embodiment, precompression spring 71 and 72 also can act directly on the plate 10, shown in Figure 17 B.
A flexible cable is bound an end of spring and flexible cable is vertically passed turn, and the compression spring binds the other end of spring with flexible cable, and keeps two flexible cable tensionings between binding; Relieving is to the pressure of spring, and this spring has just become the precompression spring.If in turn, it is vertically supportted length with a bar or pipe, has just made the pretension spring.
As Figure 18 A and 18B the embodiment that the present invention adopts the pretension spring is shown.Shown in Figure 18 A, pretension spring 71 and 72 is hinged on the framework, and its other end 73 and 74 binds on the support 20 double swing arm O1-O-O2 by flexible cable 75 and 76 respectively.Under windless condition, when plate 10 is in the neutral position, flexible cable 75 and 76 tensionings but only be subjected to very little tension force.If plate 10 is tending towards pivoting along clockwise direction under the effect of wind-force, then flexible cable 75 tension force increase flexible cable 76 then relaxes.When wind-force surpasses certain intensity, plate 10 surmounts the do time spent of the pretension of pretension spring 71 to support 20 and plate 10 along the trend that pivots clockwise, and plate 10 just begins clockwise pivot.
As Figure 18 B Figure 18 A alternate embodiment is shown, wherein pretension spring 71 and 72 is to bind on the plate 10 by flexible cable 75 and 76.
Embodiment shown in Fig. 1-18 can reduce a kind of overhead panel, comprising:
A fixing framework (not shown) and at least one plate 10, described framework limits a framework face, described plate 10 has a front 11, a back side 12 and the middle plane 15 between front and back, described meta bread contains a centre of area A and a neutrality line A1-A2 who passes this centre of area, can make described plate on the described framework of described plate pivot joint row (can be vertical around a pivot axis O who parallels with described neutrality line, also can be level) rotation, described pivot axis is opened certain distance between the orthography line O-O on the plane and the described neutrality line partially in described, be referred to as eccentric throw, described plate is tending towards under the power F effect doing to rotate with the wind around described pivot axis blowing down with the wind; With
One is installed in the resetting-mechanism that the described plate of inhibition rotates with the wind between plate 10 and the framework.
Shown in Fig. 5-7,13 and 14, an embodiment of described resetting-mechanism comprises a swing span O1-O-O2 who is fixed to directly or indirectly on the described plate, this swing span have one parallel and be across the acting surface of described pivot axis O-O; With a thrustor 60 that is installed on the described framework, this thrustor can move and apply jacking force to described acting surface and suppress the rotation with the wind of described plate under the effect of a bias force F along a direction perpendicular to described pivot axis.
Shown in Figure 17 A, B and 18A, B, another embodiment of described resetting-mechanism comprises a pair of back side at plate 10 10 the spring 71 and 72 from the pivot axis double side acting in plate respectively, in order to impel plate 10 to keep and to be returned to vertical position.Better, this is a pair of pretension or precompression spring to spring.
As shown in figure 19, article one, curtain wall 100 is holded up in the southern side of east-west highway one, this curtain wall comprises delegation's framework and some plates 10 that is installed on the framework, and opening wide between undermost plate 10 and ground has port 16, in case place's accumulated snow of the corner between curtain wall and highway or heap are husky.Like this, sunlight is subjected to blocking just according to the surface less than highway R of curtain wall 100, provides anti-sunlight function to highway thus and has prolonged application life of highway; Simultaneously also provide sun-proof cooling effect for driving vehicle.
Have reflection function or reflectorized material surface on the side 10 of highway dorsad at plate 10, will shine sunlight reflected on the plate 10, take up an area of erosion to promote the growth of ground plant, having compensated to a certain extent thus to build the road farming, woods, animal husbandry to ground.
If highway is a south-north direction, can respectively hold up aforesaid curtain wall together in the thing both sides of highway.
Certainly, the diagram highway also can be replaced by a river or deserted mountain.
The plate that Figure 19 is used can adopt any plate 10 shown in Fig. 1-18 and relevant bracing or strutting arrangement and controlling organization (referring to bias unit, stop device and resetting-mechanism) thereof.Certainly, these controlling organizations can not wanted yet, and plate 10 just can pivot with the wind.This is little to the influence of ventilating on the one hand, and the rated wind velocity designing requirement to curtain wall has also reduced on the other hand.
Curtain wall shown in Figure 19 can be used to isolate the traffic noise on the highway.The plate of this moment should adopt any plate 10 shown in Fig. 1-18 and relevant bracing or strutting arrangement and controlling organization (bias unit, stop device and resetting-mechanism) thereof.At strong wind weather, the strong wind noise accounts for leading role with respect to traffic noise.
In order to prevent to be frozen by ice and snow between plate and the framework, can increase the area of plate, draw back slit or spacing between plate and the framework.Even if having icingly between plate and the framework, blow at strong wind under the effect of large tracts of land plate, these freeze and also can break immediately.
As shown in figure 20, plate 10 is connected on the framework (not shown) by pivot 30.Illustrated another embodiment resetting-mechanism comprises: a pair of pulley 101 and 102, and this is hinged on the described framework side by side at interval to the side (for example vertical below or top) of pulley at pivot axis; With a cable T, one end of cable is directly connected on the plate or by intermediate connection structure and is connected to indirectly on the plate so that can apply torque to plate, the other end of cable passes the interval between pulley 101 and 102, on this other end, apply biasing pulling force, for example a spring force or a gravity.Described cable T can pass freely through the interval between the described pulley, also can be subjected to this extruding in opposite directions to pulley.
No matter plate 10 is to change pendulum clockwise or change pendulum counterclockwise, and biasing pulling force B can be withdrawn into vertical position or other normal positions with plate by cable T.
It should be noted that pulley 101 and 102 and the mounting structure on framework should not bump with the plate that changes pendulum or interfere.
More in a broad sense, described resetting-mechanism comprises: a pair of pulley, and this is hinged on the described framework in pivot axis one side side by side at interval to pulley; With a cable, an end of cable is connected on the plate directly or indirectly so that can apply torque to plate, and the other end of cable passes this to the interval between the pulley, applies biasing pulling force, for example a spring force or a gravity on this other end; Described cable can pass freely through the interval between the described pulley, also can be subjected to this extruding in opposite directions to pulley.
As Figure 21, an illustrated embodiment resetting-mechanism again comprises: the pinion G2 of gear wheel G1 and and gear wheel engaged transmission, gear wheel G1 and plate 10 can be fixed to same pivot O and upward and with respect to described framework (not marking) pivot, and gear wheel G1 also can directly be fixed on the plate 10 with its pivot (not shown); Pinion G2 connects and drives (for example directly fixing or pass through a rotating shaft OT) reel GO, and elevator a cable T on the reel.The other end of cable applies a biasing pulling force (for example be a weight or an extension spring).In order to prevent the inertia impact of weight W to cable, cable preferably is connected in series on this weight W by a damping spring.
Best, when plate 10 was positioned at neutrality or vertical position, weight W promptly put on gravity by cable T the minimum bus place on the reel face of cylinder.Like this, as long as reel GO rotates and to meet or exceed 1/4th and change, weight W just reaches maximum value to the reseting torque that reel GO, big pinion G1 and G2 and plate 10 apply.
For example, when the gearratio of gear train G1 and G2 or gear train reached 10, reel turn 90 degrees, and plate 10 just rotates 9 degree.Like this, down moving at gentle breeze and little wind, the amplitude of plate swing is ± 9 degree.When the gearratio of gear train G1 and G2 or gear train reached 100, reel turn 90 degrees, and plate 10 just rotates 0.9 degree.Like this, down moving at gentle breeze and little wind, the amplitude of plate swing is ± 0.9 degree.The so small size swing of plate more can attract pedestrian's attention.
More in a broad sense, described resetting-mechanism comprises: the pinion of gear wheel and and gear wheel engaged transmission, and gear wheel is connected on the plate with its pivot; With one be connected to pinion and drive reel by it, elevator is supported a cable on the reel, the other end of cable applies a biasing pulling force (for example be a weight).In order to prevent the inertia impact of weight W to cable, cable preferably is connected in series on this weight by a damping spring.
On the contrary, under normally unstable wind blows, produce oscillatory or impact swing, can apply moment of friction to the pivoting action of plate or its pivot, for example as wheel brake if want to prevent plate.
Claims (10)
1. overhead panel comprises:
A fixing framework and at least one plate, described framework limits a framework face, described plate has a front, a back side and the middle plane between front and back, described meta bread contains a centre of area and a neutrality line that passes this centre of area, described plate is pivotally attached to described plate is rotated around a pivot axis that parallels with described neutrality line, described pivot axis is opened certain distance between the orthography line on the plane and the described neutrality line partially in described, be referred to as eccentric throw, described plate is tending towards under the power effect doing to rotate with the wind around described pivot axis blowing down with the wind;
A bias unit, be used for from described framework, applying the rotation with the wind that a bias force is resisted described plate to described plate, the trend of rotating with the wind when described plate surpasses the do time spent of described bias force to plate, and described plate just makes to change with the wind pendulum around described pivot axis; With
A neutral position stop device that is fixed on the described framework is used for keeping out the effect of described bias force and makes the plane of described plate be parallel to described framework face.
2. overhead panel as claimed in claim 1, wherein, described eccentric throw is the 5%-50% of plate edge perpendicular to the yardstick of neutrality line direction, preferably its 5%-25%.
3. overhead panel as claimed in claim 1 or 2, wherein, described plate is pivotally attached on the framework by support, and described support is fixedlyed connected with plate.
4. overhead panel comprises:
Sharp at least one plate of fixing framework, described framework limits a framework face, described plate has a front, a back side and the middle plane between front and back, described meta bread contains a centre of area and a neutrality line that passes this centre of area, described plate is pivotally attached to described plate is rotated around a pivot axis that parallels with described neutrality line, described pivot axis is opened certain distance between the orthography line on the plane and the described neutrality line partially in described, be referred to as eccentric throw, described plate is tending towards under the power F effect doing to rotate with the wind around described pivot axis blowing down with the wind; With
One is installed in the resetting-mechanism that the described plate of inhibition rotates with the wind between plate and the framework.
5. overhead panel as claimed in claim 4, wherein, described resetting-mechanism comprises a swing span that is fixed on the described plate, this swing span have one parallel and be across the acting surface of described pivot axis; With a thrustor that is installed on the described framework, this thrustor can move and apply jacking force to described acting surface and suppress the rotation with the wind of described plate under the effect of a bias force along a direction perpendicular to described pivot axis.
6. overhead panel as claimed in claim 4, wherein, described resetting-mechanism comprises a pair of back side at the plate spring from the pivot axis double side acting in plate respectively, in order to impel plate to keep and to be returned to vertical position; Better, this is a pair of pretension or precompression spring to spring.
7. overhead panel as claimed in claim 4, wherein, described resetting-mechanism comprises: a pair of pulley, this is hinged on the described framework in pivot axis one side side by side at interval to pulley; With a cable, an end of cable is connected to plate directly or indirectly so that can apply torque to plate, and the other end of cable passes this to the interval between the pulley, applies biasing pulling force, for example a spring force on this other end; Described cable can pass freely through the interval between the described pulley, also can be subjected to this extruding in opposite directions to pulley.
8. overhead panel as claimed in claim 4, wherein, described resetting-mechanism comprises: the pinion of gear wheel and and gear wheel engaged transmission, gear wheel is connected on the plate with its pivot; With one be connected to pinion and drive reel by it, elevator is supported a cable on the reel, the lower end of cable applies a biasing pulling force (for example be a weight).In order to prevent the inertia impact of weight W to cable, cable preferably is connected in series on this weight by a spring.
9. as each described overhead panel of claim 4-8, wherein, described eccentric throw is the 5%-50% of plate edge perpendicular to the yardstick D of neutrality line direction, preferably its 5%-25%.
10. as each described overhead panel of claim 4-8, wherein, described plate is pivotally attached on the framework by support, and described support is fixedlyed connected with plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105116468A CN101994295A (en) | 2010-10-19 | 2010-10-19 | Overhead panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105116468A CN101994295A (en) | 2010-10-19 | 2010-10-19 | Overhead panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101994295A true CN101994295A (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105116468A Pending CN101994295A (en) | 2010-10-19 | 2010-10-19 | Overhead panel |
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| Country | Link |
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| CN (1) | CN101994295A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023527A (en) * | 2015-08-20 | 2015-11-04 | 朱海青 | Method for processing light publicity board of billboard |
| CN112211123A (en) * | 2020-11-10 | 2021-01-12 | 广州地铁设计研究院股份有限公司 | Ventilation type sound barrier |
| CN113005932A (en) * | 2021-03-25 | 2021-06-22 | 河南高速公路发展有限责任公司郑州分公司 | Reduce antiglare shield device that striking influences |
-
2010
- 2010-10-19 CN CN2010105116468A patent/CN101994295A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023527A (en) * | 2015-08-20 | 2015-11-04 | 朱海青 | Method for processing light publicity board of billboard |
| CN112211123A (en) * | 2020-11-10 | 2021-01-12 | 广州地铁设计研究院股份有限公司 | Ventilation type sound barrier |
| CN113005932A (en) * | 2021-03-25 | 2021-06-22 | 河南高速公路发展有限责任公司郑州分公司 | Reduce antiglare shield device that striking influences |
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Application publication date: 20110330 |