CN202657254U - Passenger step for transporting passengers and car ladder unit of passenger step - Google Patents
Passenger step for transporting passengers and car ladder unit of passenger step Download PDFInfo
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- CN202657254U CN202657254U CN 201120549252 CN201120549252U CN202657254U CN 202657254 U CN202657254 U CN 202657254U CN 201120549252 CN201120549252 CN 201120549252 CN 201120549252 U CN201120549252 U CN 201120549252U CN 202657254 U CN202657254 U CN 202657254U
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Abstract
The utility model discloses a passenger step for transporting passengers. The passenger step for transporting the passengers can transport the passengers from the ground to a butted platform. The passenger step comprises a pair of main beams with a fixed distance, a plurality of ladder steps, a pair of fixed plates and at least one pair of wheels. The plurality of ladder steps are arranged in sequence along the main beams. Each ladder step comprises a pedal which is basically arranged in the horizontal direction. The fixed plates are respectively arranged on two sides of the pedals and respectively hinged with the main beams. The wheels are hinged with free ends of the main beams and are used for assisting a car ladder in moving on the ground. Due to the fact that the free end of the car ladder directly falls to the ground, so the passenger step obtains more stable support and stability of a ladder structure is increased. The car ladder can be further matched with the passenger step so that the passenger step can be lifted to a higher position, even to the height where the passenger step can dock with a cabin door of a large airplane.
Description
Technical field
The utility model relates to a kind of accessory equipment be used to transporting the passenger, relates in particular to a kind of ladder vehicle and car ladder thereof of movable type.
Background technology
The ladder vehicle that the Civil Aviation Airport is used goes on or off the plane and be used for neatly transporting the passenger owing to not being subjected to the restriction in aircraft landing place.The ladder vehicle of prior art is that elevator is loaded on civil aviaton's special-use vehicle.After aircraft arrives at the airport, this ladder vehicle is opened hatch door place to aircraft, then under the effect of jacking system, elevator raise until dock with aircraft door, so that the passenger goes on or off the plane.
Fig. 1 is a kind of ladder vehicle 10 that has been widely used, and operator's compartment 12 is positioned at the front end of car body, is provided with running gear 16 on the chassis 14, and an oil cylinder 18 of lifting is arranged at the chassis, is used for the telescopic elevator 20 of lifting, and the front end of elevator is connected with docking platform 22.Can find out, because the hatch door height of various model aircrafts is different, need to adjust the height that elevator 20 stretches, be the state that elevator stretches as shown in phantom in FIG..Can find out, even under the rising state, the tail end 24 of elevator 20 also is unsettled, because the ladder vehicle of this prior art 10 behind the rising elevator, need to be adjusted the location of car body in addition.
Under the usual condition, the hatch door height of Boeing-747 aircraft approximately is about 5.8 meters, and the height on the doorway, upper strata of Air Passenger A380 aircraft can be up to more than 8 meters.This just means, docking platform need to be elevated to height like this for the ladder vehicle that docks aircraft door.Yet, under height like this, must consider that the stability of car ladder and even whole ladder vehicle is with the safety of elevator passenger about guaranteeing, because it is different from the application for the docking flivver.Utilize the ladder vehicle of prior art, after the car ladder stretched out forward, the elevator 20 and the docking platform that only have oil cylinder 18 to support almost were in unsettled state, therefore, small rocking the ladder vehicle of prior art may be used for dock large aircraft hardly, even because also can cause serious consequence.This shows, the ladder vehicle of prior art seriously has been not suitable with the needs of current Aviation Industry.
In addition, also there is other potential safety hazard in the ladder vehicle of prior art, because because the restriction of load larrying member, the halfpace rank of prior art are hard-wired mostly, and only when being elevated to a certain specific height, the tread on halfpace rank just can be level to the elevator that has caused prior art, and at other height, the tread on halfpace rank can not the maintenance level, so passenger up and down such halfpace rank at least also is uncomfortable.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of car ladder of structural development, by the supporting construction of improvement car ladder, and makes whole car ladder obtain more stable support, and the cooperation ladder vehicle is higher height so that it can raise.
According to the car ladder for ladder vehicle of the present utility model, be used for the passenger is transported to a docking platform from ground, comprise the girder of a pair of predetermined space; Arrange successively along described a pair of girder in a plurality of halfpaces rank, wherein these each halfpace rank comprise a pedal, the substantial horizontal setting; A pair of adapter plate is arranged on the both sides of described pedal, and is hinged with described a pair of girder respectively, and at least one pair of wheel, is hinged on the free end of described a pair of girder, is used for auxiliary described car ladder at ground moving.Described each girder comprises the first beam element, is provided with a chute that vertically arranges; With the first and second connecting portions, stagger this chute and be arranged in juxtaposition, cooperate with described adapter plate to be used for hinged described halfpace rank; The second beam element drivenly slides along described the first beam element, is provided with a base portion, is limited in the described chute, and the first and second connecting portions, is arranged on a sidepiece of described base portion, cooperates for hinged described halfpace rank with described adapter plate.Preferably, be placed with respectively the hinge hole of equi-spaced apart on described the first connecting portion and the second connecting portion, be used for hinged halfpace rank.The connecting portion of described the first and second beam elements is in alignment with each other, and the hinge hole line that is positioned on described the first connecting portion is parallel with the hinge hole line on being positioned at described the second connecting portion, to guarantee the unitarity on halfpace rank.Each described halfpace rank comprises a backplate, is positioned at the below of described pedal.
Preferably, described at least one pair of wheel is arranged on the bottom of described the second beam element, near its free end.Preferably, described at least one pair of wheel can be arranged on by a dolly free end of described the second beam element.Further, described dolly is connected with described halfpace rank on described the second beam element free end simultaneously, also can be hinged with the first and second connecting portions of described the second beam element.Specifically, the line that is positioned at described the above dolly hinge hole of the first and second connecting portions respectively be positioned at described the second beam element on the line of hinge hole on each described halfpace rank parallel and equidistant.Be positioned at the halfpace rank on the described second beam element other end, its pedal extends forward.
According to a kind of ladder vehicle be used to transporting the passenger of this aspect, be used for the passenger is transported to a transportation means from ground, comprise a chassis, be fixed with actuating device; One running gear is fixed with this chassis; One driving compartment; One docking platform, and a jacking system are used for raising described docking platform, it is characterized in that, this ladder vehicle is provided with such as the described car ladder of claim 1 to 1, utilizes a plate to be connected to a side of described jacking system.Described driving compartment is arranged on the described docking platform.Preferably, described ladder vehicle comprises an expansion link, is arranged on the described chassis, is used for supporting described the first beam element.Be positioned on the described connecting panel a pair of hinge hole line respectively be positioned at described the first beam element on the line of hinge hole on each described halfpace rank parallel and equidistant.
Ladder vehicle of the present utility model, described jacking system is the jacking system of a vertical lift, is fixed on the described chassis.This update device can be the more piece sliding groove structure, is fixed on the front end on described chassis.Preferably, this update device can adopt four sliding groove structures, namely comprises the first chute that erect at a pair of interval; A pair of the second chute is each defined in this a pair of first chute, and moves along this first chute; A pair of the 3rd chute is each defined in this a pair of second chute, and moves along this second chute; A pair of the first push rod, hinged with this a pair of second chute respectively, be used for promoting this second chute and move along this first chute, and a pair of the second push rod, be each defined in this a pair of second chute, be used for promoting the 3rd chute.Selectively, described jacking system also can adopt three sliding groove structures, namely comprises the first chute that erect at a pair of interval; A pair of the second chute is each defined in this a pair of first chute, and moves along this first chute; A pair of the 3rd chute is each defined in this a pair of second chute, and moves along this second chute; A pair of the 4th chute is each defined in this a pair of the 3rd chute, and moves along the 3rd chute; Pair of sprocket is separately positioned on the top of this a pair of the second chute; The a pair of chain that cooperates with this sprocket wheel, one of them end of this each chain and this first chute are hinged, and the other end and described the 3rd chute are hinged; A pair of the first push rod, hinged with this a pair of second chute respectively, be used for promoting this second chute and move along this first chute, and a pair of the second push rod, be each defined in this a pair of the 3rd chute, be used for promoting the 4th chute.Selectively, update device of the present utility model can adopt at least one scissors fork frame device, is fixed on the described chassis.
Be in safe consideration, ladder vehicle of the present utility model can be provided with guardrail in the both sides of described car ladder.
According to an aspect of the present utility model, obtained more stable support owing to the utility model directly lands the free end of car ladder, thereby increased the stability of terraced structure.Like this, car ladder of the present utility model can further be elevated to higher and even height large aircraft door, for example: can adapt with the height of B747 and A380 aircraft door, even can connect the high-order aircraft door of A380.
According to another aspect of the present utility model, car ladder structure of the present utility model has been equipped with the wheel that can walk or dolly at its free end, so that the car ladder supports ground by this wheel or dolly, like this, when obtaining stable support, the wheel of dolly can cooperate the docking operation of ladder vehicle and position adjustment.
According to another aspect of the present utility model, the utility model can the halfpace rank when the car ladder is raised to any height, its step surface can both keep level.Secondly, car ladder of the present utility model has solved well ladder vehicle and has pursued the contradiction that raises between height and the convenient walking by adopting stretching structure.
Description of drawings
Below in conjunction with accompanying drawing and detailed embodiment the utility model is elaborated, wherein:
Fig. 1 is the ladder vehicle that a kind of docking platform of prior art can lifting;
What Fig. 2 A showed is the schematic diagram that ladder vehicle of the present utility model docks with aircraft;
Fig. 2 B is the transparent view that the ladder vehicle of the present utility model shown in Fig. 2 A is lifted to most significant bit, has wherein removed the chassis of ladder vehicle;
Fig. 3 A is the decomposition diagram of an embodiment of the jacking system that the utility model ladder vehicle can vertical lift, shows the wherein sliding groove structure of a side;
Fig. 3 B is the schematic diagram of another embodiment of jacking system for ladder vehicle of the present utility model;
Fig. 4 has shown the decomposing schematic representation that the structure of the girder of ladder vehicle of the present utility model is amplified;
Fig. 5 A is the schematic diagram of the amplification of A section among Fig. 2 B, has shown that girder of the present utility model is connected with jacking system;
Fig. 5 B is the side schematic view figure among Fig. 5 A, has wherein removed the wherein girder of a side;
Fig. 6 A is the schematic diagram of the amplification of B section among Fig. 2 B, has shown the dolly that can walk hinged with car ladder free end;
Fig. 6 B is the side-looking section schematic diagram of Fig. 6 A;
Fig. 7 is the schematic diagram of another embodiment of the utility model car ladder, and wherein dolly and girder are hinged;
Fig. 8 is the schematic diagram of another embodiment of the utility model car ladder, and wherein the free end of this car ladder is hinged with one wheel pairs;
Fig. 9 is the schematic diagram that the jacking system of ladder vehicle of the present utility model is in retracted state;
Figure 10 is the view after the jacking system of ladder vehicle of the present utility model begins to carry out descending operation, wherein the jacking system suitable height that raise.
The specific embodiment
Below, by exemplary embodiment the utility model is specifically described.Yet should be appreciated that in the situation that not further narration, element, structure and feature in embodiment also can be attached in other embodiment valuably.
Fig. 2 A has shown that ladder vehicle 100 of the present utility model docks the view after finishing with aircraft 101 (for example: be the large aircraft of B747 and so on).At first, ladder vehicle 100 of the present utility model is provided with a chassis 102, is provided with running gear (being drive axle and wheel 104 and steeraxle and wheel 105) on its crossbeam 103, and battery 106.
Specifically, jacking system 110 that can vertical lift of the present utility model is arranged on the end (being commonly referred to front end) on chassis, docking platform 107 can be arranged on a sidepiece (being the front side) of jacking system 110 like this, be used for docking with aircraft door, for example, docking platform 107 can utilize a pair of attaching parts 132 and jacking system 110 fixing (shown in Fig. 2 B).More particularly, driving compartment 108 of the present utility model is set directly on the suitable position of docking platform 107.And telescopic elevator 140 of the present utility model can be arranged on the opposite side of jacking system 110, and this telescopic elevator free end (being tail end) can directly fall on the ground, makes things convenient for about the passenger.
Preferably, ladder vehicle 100 of the present utility model can be on the chassis 102 be provided with expansion link 109, and this bar 109 stretches with elevator 140 liftings, can utilize latching device that its length is fixed after the height of elevator 140 is decided.This expansion link 109 plays a part to stablize the structure of whole ladder vehicle, simultaneously the also further weight of supported cart ladder and platform.
Consult Fig. 2 B, more particularly, car ladder 140 of the present utility model has adopted telescopic main beam structure, its benefit is the needs that on the one hand flexible girder can satisfy the height that raises, on the other hand when car ladder retraction is arranged on the chassis, also being unlikely is that the length of ladder vehicle is long and affect the walking of ladder vehicle.Similarly, car ladder of the present utility model also is connected with jacking system 110.The car ladder 140 of the utility model ladder vehicle comprises a plurality of halfpace rank 142 of arranging successively, and these halfpace rank 142 are hinged to respectively a telescopic girder and support, i.e. the first beam element 150 and the second beam element 160.When this second beam element 160 is driven (for example, actuating device 170 can be electric pushrod or cylinder body driver element, also can be as shown in FIG. by motor-driven one chain stretching device), this second unit can slide along this first beam element 150.For the purpose of safety, preferably, can guardrail 141 be installed in the both sides of elevator 140.
Preferably, be provided with simultaneously a sprocket wheel 124 at the top of the second chute 118, to cooperate with a chain 126, the two ends of this chain 126 are separately fixed at this first chute 116 and the 3rd chute 120.
Preferably, an end of this chain 126 is fixed to the top of the first chute 116, and the other end is fixed to the bottom of the 3rd chute 120, so that structure is compacter.More preferably, can utilize a flange 119, protruding from the top of the second chute 118.Like this, just sprocket wheel 124 can be fixed thereon on the one hand, and chain 126 can pass this flange 119 and the first chute 116 is hinged; On the other hand, also the top of described the first push rod 114 can be able to be hinged on the flange 119.As a kind of selection, can be provided with a permanent seat 117 at the first chute 116, the outstanding outside that is arranged on described the first chute 116 tops, like this, it can be used for the hinged chain 126 that passes from described flange 119.
According to this preferred embodiment of the present utility model, sprocket wheel 124 namely is equivalent to movable pulley, when the first push rod 114 pushing tows the second chute 118 rises 1 unit, because the amplification of sprocket wheel 10, the 3rd chute 120 2 units that can rise namely obtain to be equivalent to the rising height of the twice of sprocket wheel 124 strokes.According to this preferred embodiment of the present utility model, its outstanding useful effect is: when whenever necessary, can allow docking platform 107 the highest liftables to 5.8 meter, i.e. the hatch door height of Boeing-747 aircraft; In case of necessity, can lengthen the height of each chute, docking platform is raised to more than 8 meters, the height on the doorway, upper strata of Air Passenger A380 aircraft namely, directly dock aircraft upper strata door, with the process of accelerating to transport the passenger, because existing connecting bridge for the airport all can't dock with the doorway, upper strata of Air Passenger A380 aircraft).
Preferably, the utility model utilizes a connecting panel 149 to be arranged between a pair of the 3rd chute 120, has strengthened on the one hand the rigidity of the 3rd chute 120, can be used for connecting car ladder 140 of the present utility model on the other hand.Like this, shown in Fig. 2 B, when jacking played a pair of the first push rod 114, docking platform 107 of the present utility model and elevator 140 will be raised simultaneously with jacking system 110.
Last embodiment difference is, can also adopt the more piece jacking system 170 with three sliding groove structures, shown in Fig. 3 B, only take the sliding groove structure of a side as example, the distance that the first chute 172 intervals are subscribed, and fix with the crossbeam (not shown) on chassis, for example, the end that this more piece jacking system can be fixed on the chassis is (for example: front end).The bottom in the first chute 172 outsides arranges a bearing 173, is used for hinged this first push rod 174 on it.The second chute 176 is limited in the first chute 172, and can move along this first chute 172.One second push rod 178 is arranged in the second chute, is used for pushing tow and is defined its 3rd interior chute 177, and it is moved along this second chute 176.Thus, during this first push rod 174 pushing tows second chute 176, more piece jacking system 170 can be elevated to from certain height the height more than 5.6 meters, and when the second push rod 178 pushing tows the 3rd chute 177, can adjust it, so that docking platform is on the suitable position.
Similarly, described the second chute 176 preferably has a flange 179, and is protruding from its top, and such the first push rod 174 can be hinged with it easily.And the 3rd chute 177 is provided with an extension 171, from the lower end of the 3rd chute 177 to downward-extension, is used for fixing described docking platform device, and the thickness with compensation chute bottom dwindles the interval on docking platform device and ground, and even makes it directly land face.Should be appreciated that jacking system that can vertical lift of the present utility model can adopt for example at least one scissors fork structure, can select according to the height of wanting to raise the progression of scissors crotch, it can be set directly on the chassis, get final product near front end.
As exemplary, Fig. 4 has shown the wherein main beam structure of a side.At first, the first beam element 150 comprises a chute with opening 151 152 that vertically arranges; With the first and second connecting portions 154 and 156, stagger this chute 152 and be arranged in juxtaposition, for example, can be located substantially on the below of this chute, be provided with respectively some hinge hole 155 (namely being positioned on the first connecting portion) and 157 (namely being positioned on the second connecting portion) that linearity is arranged that are on it.Can utilize this first beam element lower space 153 that actuating device and slide fastener (not shown) thereof are set, slide fastener just can be walked around sprocket wheel 158 pullings the second beam element 160 that is arranged on the first beam element 150 ends like this.
The second beam element 160 driven can slips along the first beam element 150, its base portion 162 is limited in the described chute 152, and its first and second connecting portion 164 and 166, be positioned at side by side a sidepiece of base portion 162, also be provided with respectively some hinge hole 165 (namely being positioned on the first connecting portion) and 167 (namely being positioned on the second connecting portion) that linearity is arranged that are on it, so that when the second beam element 160 slided along the first beam element 150, this first and second connecting portion 164 and 166 can just stretch out from the opening 151 of the first beam element 150.Preferably, in order to guarantee the unitarity on halfpace rank, the first and second connecting portions 164 and 166 that stretch out from opening align with the first and second connecting portions 154 and 156 of the first beam element, and a plurality of hinge holes 155 on it and 157 and 165 and 167 equi-spaced apart preferably.
Participate in Fig. 5 A, sidepiece at connecting panel 149 is provided with two hinge holes 143 and 144, cooperate with hinge hole on the first beam element 150 respectively, like this, the first beam element 150 is just hingedly installed (for example utilizing hinge) connecting panel 149 on jacking system 110, and each halfpace rank 142 then can utilize hinge 147 and 148 hinged by a pair of adapter plate 146 and the first beam element 150 that pass on the sidepiece of halfpace rank.Because the mounting hole on the first and second connecting portions 154 and 156 on the first beam element 150 be arranged in parallel side by side, and equidistant each other, so, it is parallel with 148 line and equidistant with it that the line (also be hinge mounting hole 143 with 144 line) that is positioned at hinge hole on the connecting panel 149 is parallel to the hinge 147 on each halfpace rank 142, shown in Fig. 5 B, when thereby the angle that has guaranteed car ladder and ground was any angle, the foot-operated face 145 on halfpace rank 142 can keep level all the time.In addition, preferably, backplate 146 can be set on each halfpace rank block interval between the halfpace rank, to increase safety.
Similarly, also should be like this for the setting on many halfpaces rank on the second beam element 160, the hinge hole line that namely is used for hinged every one-level halfpace rank is parallel and equidistant.Consult Fig. 6 A; a hinged dolly (perhaps can be called slide plate) 168 also simultaneously on the free end of the second beam element 160; this dolly 168 not only can help to support; with auxiliary moving; the girder that can also prevent the car ladder directly contacts with ground, thereby plays the effect of protection car ladder 140 firm structures.Preferably, this dolly 168 utilizes the hinge 148 ' on halfpace rank 142 ' of the next stage of the second beam element hinged simultaneously, the hinge hole line (for example: a1b1, a2b2......anbn) that like this, can guarantee every one-level halfpace rank all is parallel and equidistant.Implement on the ground at dolly, and the car ladder all keeps level with assurance halfpace terrace in any angle, shown in Fig. 6 B when becoming any angle with ground.
More particularly, on the bottom of dolly wheel is installed, for example: at least one pair of, preferably two pairs, to help the car ladder along ground moving, because ladder vehicle needs the location is adjusted in docking operation.Should be understood that, the utility model can adopt cardan wheel, roller etc. as the wheel of dolly, can also adopt slide block etc., as long as can help dolly along ground moving.
According to the technical solution of the utility model, other distortion can be arranged for the installation on halfpace rank.In another preferred embodiment of the present utility model, the halfpace rank can be yi word patterns.Dolly can be hinged with the first and second connecting portions 164 and 166 of the second beam element 160 respectively, and preferably, be positioned at the line of a pair of hinge hole a1 on the first and second connecting portions 164 and 166 and b1 can be respectively be positioned at described the second beam element on the line a2b2......anbn of hinge hole on each described halfpace rank parallel and equidistant, and can guarantee equally halfpace rank maintenance level.
Fig. 8 has shown another embodiment of the utility model car ladder, can utilize at least one pair of wheel 169 to be arranged on the bottom of described the second beam element 160, close its free end is with when this free end lands, wheel just is supported on ground, rather than the second beam element directly drops down onto ground.In addition, no matter adopt which kind of halfpace rank, all can utilize backplate 141 to be arranged between the halfpaces at different levels rank, safety and the traveling comfort trampled with increase.
According to the technical solution of the utility model, owing to having the interval between second beam element 160 that can slide along the first beam element and the first beam element 150, therefore, halfpace rank 142 at two beam element transition positions " also will there be the interval; preferably, and the halfpace rank of (away from free end) on the other end of described the second beam element 160, its tread extends forward; with the interval between two beam elements of transition, as shown in Figure 9.When car of the present utility model ladder shrinks, because halfpace rank 142 " tread covered interval between two beam elements 150 and 160 so that whole car ladder structure is attractive in appearance and compact, consult Figure 10.At place in operation be, the beginning of the first beam element 150 raises by jacking system 110 and gradually, and this moment second, beam element 160 drivenly fell gradually, and the tread on halfpace rank 142 covers this interval all the time, until dolly is implemented on the ground.
Although should be pointed out that by above-mentioned embodiment the utility model is described, yet the utility model also can have other numerous embodiments.Under the prerequisite that does not break away from the utility model spirit and scope; those of ordinary skill in the art obviously can make various corresponding changes and distortion to the utility model, but these changes and distortion all should belong in the scope that the utility model claims and equivalent thereof protect.
Claims (20)
1. a car ladder that is used for ladder vehicle is used for the passenger is transported to a docking platform from ground, comprises
The girder of a pair of predetermined space;
Arrange successively along described a pair of girder in a plurality of halfpaces rank, wherein these each halfpace rank comprise
One pedal, the substantial horizontal setting;
A pair of adapter plate is arranged on the both sides of described pedal, and is hinged with described a pair of girder respectively, and
At least one pair of wheel is hinged on the free end of described a pair of girder, is used for auxiliary described car ladder at ground moving.
2. car ladder according to claim 2 is characterized in that, described each girder comprises
The first beam element is provided with
One chute that vertically arranges; With
The first and second connecting portions stagger this chute and are arranged in juxtaposition, and cooperate with described adapter plate to be used for hinged described halfpace rank;
The second beam element, driven along described the first beam element slip, be provided with
One base portion is limited in the described chute, and
The first and second connecting portions are arranged on a sidepiece of described base portion, cooperate with described adapter plate to be used for hinged described halfpace rank.
3. car ladder according to claim 2 is characterized in that, is placed with respectively the hinge hole of equi-spaced apart on described the first connecting portion and the second connecting portion, is used for hinged halfpace rank.
4. car ladder according to claim 3 is characterized in that, the connecting portion of described the first and second beam elements is in alignment with each other, and the hinge hole line that is positioned on described the first connecting portion is parallel with the hinge hole line on being positioned at described the second connecting portion.
5. car ladder according to claim 4 is characterized in that, each described halfpace rank comprises a backplate, is positioned at the below of described pedal.
6. car ladder according to claim 2 is characterized in that, described at least one pair of wheel is arranged on the bottom of described the second beam element, near its free end.
7. car ladder according to claim 2 is characterized in that, described at least one pair of wheel is arranged on the free end of described the second beam element by a dolly.
8. car according to claim 7 ladder is characterized in that, described dolly is connected with described halfpace rank on described the second beam element free end simultaneously.
9. car ladder according to claim 7 is characterized in that, described dolly is hinged with the first and second connecting portions of described the second beam element respectively.
10. car according to claim 9 ladder, the line that is positioned at described the above dolly hinge hole of the first and second connecting portions respectively be positioned at described the second beam element on the line of hinge hole on each described halfpace rank parallel and equidistant.
11. each described car ladder is characterized in that according to claim 2-10, be positioned at the halfpace rank on the described second beam element other end, its pedal extends forward.
12. a ladder vehicle that is used for transporting the passenger is used for the passenger is transported to a transportation means from ground, comprises
One chassis is fixed with actuating device;
One running gear is fixed with this chassis;
One driving compartment;
One docking platform, and
One jacking system is used for raising described docking platform, it is characterized in that, this ladder vehicle is provided with such as the described car ladder of claim 1 to 11, utilizes a plate to be connected to a side of described jacking system.
13. ladder vehicle according to claim 12 is characterized in that, described driving compartment is arranged on the described docking platform.
14. ladder vehicle according to claim 13 is characterized in that, described ladder vehicle comprises an expansion link, is arranged on the described chassis, is used for supporting described the first beam element.
15. ladder vehicle according to claim 12 is characterized in that, be positioned on the described connecting panel a pair of hinge hole line respectively be positioned at described the first beam element on the line of hinge hole on each described halfpace rank parallel and equidistant.
16. ladder vehicle according to claim 12 is characterized in that, described jacking system is the jacking system of a vertical lift, is fixed on the described chassis.
17. ladder vehicle according to claim 16 is characterized in that, described jacking system is fixed on the front end on described chassis, comprises
The first chute that erect at a pair of interval;
A pair of the second chute is each defined in this a pair of first chute, and moves along this first chute;
A pair of the 3rd chute is each defined in this a pair of second chute, and moves along this second chute;
A pair of the first push rod, hinged with this a pair of second chute respectively, be used for promoting this second chute and move along this first chute, and
A pair of the second push rod is each defined in this a pair of second chute, is used for promoting the 3rd chute.
18. ladder vehicle according to claim 16 is characterized in that, described jacking system is fixed on the front end on described chassis, comprises
The first chute that erect at a pair of interval;
A pair of the second chute is each defined in this a pair of first chute, and moves along this first chute;
A pair of the 3rd chute is each defined in this a pair of second chute, and moves along this second chute;
A pair of the 4th chute is each defined in this a pair of the 3rd chute, and moves along the 3rd chute;
Pair of sprocket is separately positioned on the top of this a pair of the second chute;
The a pair of chain that cooperates with this sprocket wheel, one of them end of this each chain and this first chute are hinged, and the other end and described the 3rd chute are hinged;
A pair of the first push rod, hinged with this a pair of second chute respectively, be used for promoting this second chute and move along this first chute, and
A pair of the second push rod is each defined in this a pair of the 3rd chute, is used for promoting the 4th chute.
19. ladder vehicle according to claim 16 is characterized in that, described jacking system comprises at least one scissors fork frame device, is fixed on the described chassis.
20. each described ladder vehicle is characterized in that according to claim 12-19, the both sides of described car ladder are provided with guardrail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120549252 CN202657254U (en) | 2011-11-04 | 2011-12-23 | Passenger step for transporting passengers and car ladder unit of passenger step |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120434420.2 | 2011-11-04 | ||
| CN201120434420 | 2011-11-04 | ||
| CN 201120549252 CN202657254U (en) | 2011-11-04 | 2011-12-23 | Passenger step for transporting passengers and car ladder unit of passenger step |
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| CN202657254U true CN202657254U (en) | 2013-01-09 |
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| CN 201120549252 Expired - Fee Related CN202657254U (en) | 2011-11-04 | 2011-12-23 | Passenger step for transporting passengers and car ladder unit of passenger step |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085990A (en) * | 2011-11-04 | 2013-05-08 | 北京晟航国瑞科技有限公司 | Aircraft landing stairs for transporting passengers and boarding ladder device thereof |
-
2011
- 2011-12-23 CN CN 201120549252 patent/CN202657254U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085990A (en) * | 2011-11-04 | 2013-05-08 | 北京晟航国瑞科技有限公司 | Aircraft landing stairs for transporting passengers and boarding ladder device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20151223 |
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| EXPY | Termination of patent right or utility model |