CN204871128U - Climb stair bassinet - Google Patents
Climb stair bassinet Download PDFInfo
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- CN204871128U CN204871128U CN201520443948.4U CN201520443948U CN204871128U CN 204871128 U CN204871128 U CN 204871128U CN 201520443948 U CN201520443948 U CN 201520443948U CN 204871128 U CN204871128 U CN 204871128U
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- stair climbing
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- climbing
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Abstract
The utility model discloses a climb stair bassinet, this bassinet is provided with mainly climbs the stair device by what climb that the stair tread constitutes, it is fan -shapedly to climb the stair tread, the tip has a shaft hole, this shaft hole is passed to the axis of rotation will climb the support of stair tread swing joint on lieing in the back gyro wheel bracing piece of bassinet body, it can revolute the moving axis and rotate and rotate plane and back gyro wheel to belong to the plane parallel to climb the stair tread, have at least one to climb the stair tread on the every back gyro wheel bracing piece, climb the stair tread symmetry on two mobile jibs. On when going downstairs, climb the stair tread and contact with the horizontal plane in ladder step and the intersection line of facade, the footboard uses the contact position to rotate as the strong point to the supporter of bassinet body shifts between footboard and the gyro wheel between neighbouring footboard and footboard, and messenger's bassinet constantly rises or descends to accomplishing and climbs stair work, makes it have the stair of climbing function. The utility model discloses climb stair bassinet has the excellent stair function of climbing, motion stationary, strike little, simple structure, characteristics such as convenient to use.
Description
Technical field
The utility model relates to a kind of rickshaw with stair climbing function, especially relates to a kind of perambulator capable of climbing stairs.
Background technology
Along with socioeconomic fast development, the care and nursing of people to infant is more thorough, and various nursing materials is popularized, and wherein perambulator has become the essential items that people give birth to children, and almost each have the family of infant in use.But perambulator sometimes also brings embarrassment and even bothers, running into little terraced bank easily can also put on bank, carries perambulator just really become the thing of trouble once run into multistage stair; In addition, because the door ladder more general stair ladder step of bus is high, so the upper and lower bus of perambulator is very inconvenient, usually need to lift.Although today, construction speed was very fast, great majority building remains upper and lower by stair, and this kind of situation can make moderate progress in future, but it is still like this to have a lot of building all the time.Not enough for overcoming this, people attempt as perambulator increases stair climbing function, and have done many effort, but up to the present, not yet develop the perambulator really with stair climbing function.
Summary of the invention
In order to solve the deficiency in above-mentioned technology, the purpose of this utility model is to provide a kind of stable movement, it is little to impact and simple and practical, has the perambulator of stair climbing function.
For convenience, in the following description to facade and the horizontal surface of stair ladder step in three dimensional space, can describe with the perpendicular line of the stair ladder step in two dimensional surface view and horizon, in other words these two kinds of statements are of equal value; The facade that in same three dimensional space, stair ladder walks and the external corner intersection of horizontal surface, and the statement of the perpendicular line that in two dimensional surface view, stair ladder walks and horizontal intersection point is of equal value, and claim this intersection point to be the intersection point that ladder walks; The curved line two kinds that in the arcwall face that in three dimensional space, stair climbing pedal is fan-shaped and two dimensional surface view, stair climbing pedal is fan-shaped states equivalence; What do not indicate projecting plane is rear roller place plane.
In order to solve the problems of the technologies described above, the utility model perambulator capable of climbing stairs, comprises perambulator body, roller; Perambulator body is made up of vehicle frame and seat and backrest, and vehicle frame mainly contains two symmetrical side vehicle frames, each side vehicle frame has a front wheel strut bar and a rear roller strut bar, and two rear rollers are parallel to each other, and seat and backrest are made by flexible fabric and be fixed on frame for baby cart.Perambulator capable of climbing stairs is provided with stair-climbing device, this device forms primarily of stair climbing pedal, stair climbing pedal is fan-shaped, and small end has an axis hole, and stair climbing pedal is movably connected on the bearing that is fixed on the rear roller strut bar of side vehicle frame through this axis hole by turning cylinder; The outside of rear roller strut bar, or the inner side being positioned at rear roller strut bar; Stair climbing pedal can rotate moving axis rotate and rotational plane is not coplanar but parallel with rear roller place plane, the fan-shaped curved line of part stair climbing pedal is in the outside of perambulator body, every root rear roller strut bar has a stair climbing pedal at least, and the stair climbing pedal on two rear roller strut bars is symmetrical;
The stair-climbing device of perambulator capable of climbing stairs forms by two rear roller strut bars respectively only having a stair climbing pedal; The installation site of the turning cylinder of this stair climbing pedal is higher than the wheel shaft installation site of rear roller, and when the angle of perambulator capable of climbing stairs and horizontal surface is the angle of stair activity, the height of the curved line end points of stair climbing pedal is higher than the height intending the highest ladder step of climbing; The contact point that stair climbing pedal walks with ladder, is less than the terraced degree of depth walked with the intersection point distance in the horizontal direction of the projection of stair climbing pedal and the projection of contiguous rear roller; Nadir on the fan-shaped curved line of stair climbing pedal is higher than the nadir of rear roller wheel rim, the projection of stair climbing pedal and the projection of rear roller overlap, its overlapping region to the outside incorporeity of the pedal curved line between stair climbing pedal and the terraced contact point walked, that is to say that the work arcuate line segment of stair climbing pedal is in the outside of perambulator body at the projection intersection point by vehicle frame back;
The stair-climbing device of stair perambulator is respectively made up of two or more stair climbing pedals by two rear roller strut bars; The installation site of the turning cylinder I of a stair climbing pedal I is higher than the wheel shaft installation site of rear roller bottom, when the angle of perambulator capable of climbing stairs and horizontal surface is the angle of stair activity, topmost the height of the curved line end points of a stair climbing pedal II is higher than the height intending the highest ladder step of climbing; Adjacent two stair climbing pedals are in the same side of roller supporting bar, or respectively in the both sides of roller supporting bar, adjacent two stair climbing pedals are not coplanar and parallel, and each stair climbing pedal rotates mutually non-interference; The projection of adjacent two stair climbing pedals overlaps, in overlapping region, the projection intersection point of two curved lines is in the outside of perambulator body, some is overlapping for the projection of stair climbing pedal I bottom and the projection of contiguous rear roller, its overlapping region without perambulator entity, that is to say that the work arcuate line segment of stair climbing pedal is in the outside of perambulator body in the outside of the pedal curved line of the projection intersection point by vehicle frame back extremely topmost between a stair climbing pedal II and the terraced contact point walked; Nadir on the fan-shaped curved line of stair climbing pedal I is bottom higher than the nadir of contiguous rear roller wheel rim.Stair-climbing device is adopted respectively to be made up of two and above stair climbing pedal two rear roller strut bars, the physical dimension of stair climbing pedal is reduced, the contact point that stair climbing pedal topmost II walks with ladder, the contact point distance in the horizontal direction walked with contiguous rear roller and ladder is smaller, usually the requirement being less than the ladder step degree of depth is met, even if this distance is greater than the ladder step degree of depth, do not affect automatically reseting of the stair climbing pedal II of top yet.Improve the height of speeling stairway ladder step simultaneously, as arranged two or three stair climbing pedals on every root rear roller strut bar, then can climb the terraced bank of about 400mm, easily solve the problem of the door ladder of such as bus up and down.
Improve as one of the present utility model, the utility model perambulator capable of climbing stairs, the fan-shaped central angle of its stair climbing pedal is less than 180 degree, and fan-shaped is equipped with counterweight, and in a free state, fan-shaped another side raises up.While the circumferential size reducing stair climbing pedal and area, make the working morphology of stair climbing pedal constant by arranging counterweight.
As the improvement of the stair-climbing device to the utility model perambulator capable of climbing stairs, stair climbing pedal is substituted by stair climbing pulley, and stair climbing pulley is circular wheel.Adopt the stair climbing pulley with radius circular to substitute fan-shaped stair climbing pedal, make it without the reset issues of stair climbing pedal.This structure being improved to stair-climbing device provides another kind of selection.
The utility model perambulator capable of climbing stairs adopts fan-shaped stair climbing pedal as stair-climbing device, and structure is very simple.During stair activity, the horizontal surface that stair climbing pedal walks with ladder contacts with the intersection line of facade, pedal is that the strong point rotates with contact position, and the supporter of perambulator body is between contiguous pedal and pedal, shift between pedal and rear roller, make perambulator constantly increase or the stair climbing work that declined, make it have stair climbing function, ladder step is highly less and can not the problem of stair climbing relatively because rear roller diameter to solve perambulator.Due between the contiguous pedal of the utility model perambulator capable of climbing stairs and pedal, all overlap between pedal and rear roller, ensure that supporter transfer steadily, greatly reduce or avoid impact.
The features such as thus the utility model perambulator capable of climbing stairs has excellent stair climbing function, and stable movement, impacts little, and structure is simple, easy to use.
Accompanying drawing explanation
Be described in further detail below in conjunction with accompanying drawing and embodiment of the present utility model:
Fig. 1 is the structural representation of the utility model perambulator capable of climbing stairs that stair-climbing device respectively only has a stair climbing pedal to form by two rear roller strut bars 2.
Fig. 2 is that schematic diagram is looked on the right side of Fig. 1.
Fig. 3 is that the utility model perambulator capable of climbing stairs that stair-climbing device respectively only has a stair climbing pedal to form by two rear roller strut bars 2 is gone upstairs one of schematic diagram.
Fig. 4 is that the utility model perambulator capable of climbing stairs that stair-climbing device respectively only has a stair climbing pedal to form by two rear roller strut bars 2 is gone upstairs schematic diagram two.
Fig. 5 is that the utility model perambulator capable of climbing stairs that stair-climbing device respectively only has a stair climbing pedal to form by two rear roller strut bars 2 is gone upstairs schematic diagram three.
Fig. 6 is that the utility model perambulator capable of climbing stairs that stair-climbing device respectively only has a stair climbing pedal to form by two rear roller strut bars 2 is gone upstairs schematic diagram four.
Fig. 7 is that the utility model perambulator capable of climbing stairs that stair-climbing device respectively only has a stair climbing pedal to form by two rear roller strut bars 2 is gone downstairs one of schematic diagram.
Fig. 8 is that the utility model perambulator capable of climbing stairs that stair-climbing device respectively only has a stair climbing pedal to form by two rear roller strut bars 2 is gone downstairs schematic diagram two.
Fig. 9 is that the utility model perambulator capable of climbing stairs that stair-climbing device respectively only has a stair climbing pedal to form by two rear roller strut bars 2 is gone downstairs schematic diagram three.
Figure 10 is that the utility model perambulator capable of climbing stairs that stair-climbing device respectively only has a stair climbing pedal to form by two rear roller strut bars 2 is gone downstairs schematic diagram four.
Figure 11 is that the utility model perambulator capable of climbing stairs that stair-climbing device respectively only has a stair climbing pedal to form by two rear roller strut bars 2 is gone downstairs schematic diagram five.
Figure 12 is the utility model perambulator capable of climbing stairs structural representation that stair-climbing device is respectively made up of 2 stair climbing pedals two rear roller strut bars 2.
Figure 13 is that schematic diagram is looked on the right side of Figure 12.
Figure 14 is that the utility model perambulator capable of climbing stairs that stair-climbing device is respectively made up of 2 stair climbing pedals two rear roller strut bars 2 is gone upstairs one of schematic diagram.
Figure 15 is that the utility model perambulator capable of climbing stairs that stair-climbing device is respectively made up of 2 stair climbing pedals two rear roller strut bars 2 is gone upstairs schematic diagram two.
Figure 16 is that the utility model perambulator capable of climbing stairs that stair-climbing device is respectively made up of 2 stair climbing pedals two rear roller strut bars 2 is gone upstairs schematic diagram three.
Figure 17 is that the utility model perambulator capable of climbing stairs that stair-climbing device is respectively made up of 2 stair climbing pedals two rear roller strut bars 2 is gone upstairs schematic diagram four.
Figure 18 is that the utility model perambulator capable of climbing stairs that stair-climbing device is respectively made up of 2 stair climbing pedals two rear roller strut bars 2 is gone upstairs schematic diagram five.
Figure 19 is that the utility model perambulator capable of climbing stairs that stair-climbing device is respectively made up of 2 stair climbing pedals two rear roller strut bars 2 is gone downstairs one of schematic diagram.
Figure 20 is that the utility model perambulator capable of climbing stairs that stair-climbing device is respectively made up of 2 stair climbing pedals two rear roller strut bars 2 is gone downstairs schematic diagram two.
Figure 21 is that the utility model perambulator capable of climbing stairs that stair-climbing device is respectively made up of 2 stair climbing pedals two rear roller strut bars 2 is gone downstairs schematic diagram three.
Figure 22 is that the utility model perambulator capable of climbing stairs that stair-climbing device is respectively made up of 2 stair climbing pedals two rear roller strut bars 2 is gone downstairs schematic diagram four.
Figure 23 is that the utility model perambulator capable of climbing stairs that stair-climbing device is respectively made up of 2 stair climbing pedals two rear roller strut bars 2 is gone downstairs schematic diagram five.
Figure 24 is that the utility model perambulator capable of climbing stairs that stair-climbing device is respectively made up of 2 stair climbing pedals two rear roller strut bars 2 is gone downstairs schematic diagram six.
Figure 25 is the utility model perambulator capable of climbing stairs structural representation that stair-climbing device is made up of stair climbing pulley.
Detailed description of the invention
The utility model perambulator capable of climbing stairs, comprises perambulator body, roller; Perambulator body is made up of vehicle frame and seat and backrest, and vehicle frame mainly contains two symmetrical side vehicle frames, each side vehicle frame has a front wheel strut bar and a rear roller strut bar 2, two rear rollers 1 to be parallel to each other, and seat and backrest are made by flexible fabric and be fixed on frame for baby cart.The utility model perambulator capable of climbing stairs is provided with stair-climbing device, this device forms primarily of stair climbing pedal, stair climbing pedal is fan-shaped, and small end has an axis hole, and stair climbing pedal is movably connected on the bearing 27 that is fixed on the rear roller strut bar 2 of side vehicle frame through this axis hole by turning cylinder; Stair climbing pedal is positioned at the outside of rear roller strut bar 2, or is positioned at the inner side of rear roller strut bar 2; The stair climbing pedal moving axis that can rotate rotates and rotational plane is not coplanar but parallel with rear roller 1 place plane, every root rear roller strut bar 2 has a stair climbing pedal at least, stair climbing pedal on two rear roller strut bars 2 symmetry.
Just every root rear roller strut bar 2 only has a stair climbing pedal respectively below and have two kinds of versions of two and above stair climbing pedal to enumerate embodiment.
One, stair-climbing device is as follows by the embodiment of the perambulator capable of climbing stairs that two rear roller strut bars 2 respectively only have a stair climbing pedal to form.
Fig. 1, Fig. 2 are the structural representation (in Fig. 1 stair with long and two-short dash line illustrate) of stair-climbing device by the utility model perambulator capable of climbing stairs that two rear roller strut bars 2 respectively only have a stair climbing pedal to form.Stair climbing pedal 20 is fan-shaped, its radius size and installation site are by the impact intending stair climbing ladder step height and the degree of depth, the too little and installation position of radius sets low and makes its curved line termination height highly then can not realize stair climbing function lower than ladder step, make again too greatly the contact point that stair climbing pedal 20 walks with ladder, the terraced degree of depth walked is greater than with the intersection point distance in the horizontal direction of the projection of contiguous rear roller 1 with the projection of stair climbing pedal 20, thus when occurring upstairs, stair climbing pedal 20 can not be returned to original state (reset), thus cannot continue stair climbing again.The projection of the projection and rear roller 1 that simultaneously also will take into account stair climbing pedal 20 will overlap, so the fan-shaped radius of stair climbing pedal 20 and installation site should make the height of its curved line end points be higher than ladder step height, make the contact point that stair climbing pedal 20 walks with ladder again, and the projection of stair climbing pedal 20 is less than the terraced degree of depth walked with the intersection point distance in the horizontal direction of the projection of contiguous rear roller 1.The contact point that obvious stair climbing pedal 20 walks with ladder, with the projection of stair climbing pedal 20 and the intersection point distance in the horizontal direction of the projection of contiguous rear roller 1, with the seat of perambulator upper downstairs time relevant with the angle of horizontal surface, less then its projector distance of angle is less.The fan-shaped central angle of the utility model preferred stair climbing pedal 20 is less than 180 degree, and stair climbing pedal 20 fan-shaped while the larger counterweight 26 of configuration proportion, the geometric centre of stair climbing pedal 20 is not overlapped with its center of gravity, center of gravity deflection counterweight side, the fan-shaped central angle of certain stair climbing pedal 20 also can be greater than 180 degree, but physical dimension is larger; Stair climbing pedal 20 can have various structures, the utility model preferred stair climbing pedal 20 structure is dull and stereotyped, an axis hole identical with the wheel shaft diameter of rear roller 1 is established at small end, its material can be aluminum alloy, also can be the other materials of light-high-strength, the engineering plastics that the utility model is preferably identical with rear roller 1.
Radius and the installation site of the preferred stair climbing pedal 20 of the utility model are, stair climbing pedal 20 both can be arranged on the outside of rear roller strut bar 2, also can be arranged on the inner side of rear roller strut bar 2, the utility model selects the outside being arranged on rear roller strut bar 2.When the angle of perambulator capable of climbing stairs and horizontal surface is the angle of stair activity, the utility model is the free state (as shown in Figure 3) of 20 degree for the angle of the seat of perambulator and horizontal surface; The height of the upper extreme point of the center height of the turning cylinder 21 of stair climbing pedal 20 and the curved line of stair climbing pedal 20 is higher than intending the height of climbing the highest ladder step, certainly meet the wheel shaft installation site of installation site higher than rear roller 1 of the turning cylinder 21 of stair climbing pedal 20, in fact because stair climbing pedal 20 is arranged on the outside of rear roller 1, so the installation site of the turning cylinder 21 of stair climbing pedal 20 is higher than the upper wheel rim of rear roller 1; The center height of certain turning cylinder 21 also can climb the highest terraced height walked lower than intending, but when stair activity, stair climbing pedal 20 there will be a bit of rolling, can impact a little; And the contact point that stair climbing pedal 20 walks with ladder, the contact point projector distance in the horizontal direction walked with contiguous rear roller 1 and ladder is less than the least depth intended ladder stand and walk, the contact point that stair climbing pedal 20 walks with ladder must be ensure that like this, be less than the terraced depth requirements walked with the intersection point distance in the horizontal direction of the projection of stair climbing pedal 20 and the projection of contiguous rear roller 1; The projection of stair climbing pedal 20 and the projection of rear roller 1 overlap, the outside of the pedal curved line of its overlapping region between the contact point leaning on the projection intersection point of vehicle frame back to stair climbing pedal 20 and ladder to walk is without perambulator entity, and in other words the work arcuate line segment of stair climbing pedal 20 is in the outside of perambulator body; And horizontal throw is less than the degree of depth intended ladder stand and walk between the contact point that the intersection point of projection to stair climbing pedal 20 and ladder walks.And the intersection height of the projection of the projection of stair climbing pedal 20 and rear roller 1 is lower than the axle articulation of rear roller 1, this intersection point also higher than the axle articulation of rear roller 1, but can impact a little so certainly.Nadir on the fan-shaped curved line of stair climbing pedal 20 is higher than the nadir of rear roller 1 wheel rim.On the position of perambulator rear roller strut bar 2 meeting these conditions, the bearing 27 of welding stair climbing pedal 20, this bearing 27 is provided with the axle sleeve installing turning cylinder 21, turning cylinder 21 is suitable with the axis hole on stair climbing pedal 20 small end, for free-running fit, axis hole and turning cylinder 21 form plain bearing, stair climbing pedal 20 is arranged on turning cylinder 21 on the bearing 27 be positioned on perambulator rear roller strut bar 2, stair climbing pedal 20 moving axis 21 that can rotate rotates, and the outside that rotational plane is positioned at rear roller 1 place plane is also parallel with it, under free state stair climbing pedal 20 deadweight effect under while raise up, the height of the upper extreme point of the curved line of stair climbing pedal 20 is made to be greater than the height of ladder step, two rear roller strut bars 22 of the utility model perambulator capable of climbing stairs respectively there is a stair climbing pedal 20 and full symmetric.
Fig. 3-Fig. 6 shows the process of going upstairs, and the handle 3 of perambulator capable of climbing stairs rear, is retreat shape at front and rear roller 1.When the stair-climbing device of the utility model perambulator capable of climbing stairs just walks contact with stair ladder, turning cylinder 21 center of stair climbing pedal 20 and curved line upper extreme point are on this ladder step height, the intersection point of this ladder step and a bit contacting of the pedal curved line following curved line of upper extreme point, now the supporter of perambulator body is rear roller 1, and the horizontal surface (as shown in Figure 3) being supported for previous stair ladder step of whole perambulator, after this under the effect dragging tractive force, the supporter of perambulator body becomes stair climbing pedal 20, and whole perambulator be supported for by the intersection point of this stair ladder step climbed, this intersection point is exactly the strong point of whole perambulator, corresponding point on stair climbing pedal 20 curved line be in contact with it are by the strong point, under the effect of external force, stair climbing pedal 20 will rotate clockwise around the strong point, the turning cylinder 21 of stair climbing pedal 20 is up thereupon rotation, thus perambulator body is also up, in the process, by the relative position of the strong point on stair climbing pedal 20 constant (as shown in Figure 4), when stair climbing pedal 20 around the strong point rotate make perambulator body go upward on stair climbing pedal 20 curved line by the strong point, the intersection point of the curved line projected with stair climbing pedal 20 and the projection of rear roller 1 overlap critical time, namely by the strong point turn to stair climbing pedal 20 project the position of intersecting point of projection of curved line and rear roller 1 time (as shown in Figure 5), the supporter continuing perambulator body more a little becomes rear roller 1 from stair climbing pedal 20, now, 20, stair climbing pedal is by the effect of gravity, and stair climbing pedal 20 rotates counterclockwise under gravity, the state until affranchise, realize automatically reseting of stair climbing pedal 20, meanwhile also be transferred on rear roller 1 by corresponding point stair climbing pedal 20 walking the strong point with ladder by the strong point and walk the corresponding point of the strong point with ladder, under the effect of external force, rear roller 1 will rotate clockwise around the strong point, the wheel shaft of rear roller 1 is up thereupon rotating, thus perambulator body is also up, until the horizon that rear roller 1 just walks with a upper ladder is tangent, this stair ladder step climbed up by perambulator, so far climbing (as shown in Figure 6) of a ladder step is completed.So repeatedly complete whole stair climbing work.
Fig. 7-Figure 11 is that the utility model perambulator capable of climbing stairs is gone downstairs the signal of process, and in the process, the rear roller 1 of perambulator rear, is the shape that moves ahead at front and handle 3.At the initial state that promotion perambulator is gone downstairs, later the facade that the vertical plane surface of the wheel shaft of roller 1 just walks with stair ladder overlaps, the strong point of perambulator is the intersection point of this ladder step, and point corresponding with it on rear roller 1 is by the strong point, under the effect of thrust and gravity, rear roller 1 rotates counterclockwise around the strong point, and the wheel shaft of rear roller 1 rotates and declines, and makes perambulator body descending, in the process, by the relative position of the strong point on rear roller 1 constant (as shown in Figure 7), rear roller 1 around the strong point rotate make perambulator body come downwards on rear roller 1 by the strong point, when overlapping with the position of the intersection point of the projection of rear roller 1 and the projection of stair climbing pedal 20, critical (as shown in Figure 8) that the supporter being in perambulator body shifts, give External Force Acting again, the supporter of perambulator body becomes stair climbing pedal 20 from rear roller 1, also be transferred on stair climbing pedal 20 by corresponding point rear roller 1 walking the strong point with ladder by the strong point simultaneously and walk the corresponding point of the strong point with ladder, under the effect of external force, stair climbing pedal 20 will rotate counterclockwise around the strong point, the turning cylinder 21 of stair climbing pedal 20 is descending thereupon rotation, thus perambulator body is also descending, in the process, by the relative position of the strong point on stair climbing pedal 20 constant (as shown in Figure 9), until rear roller 1 drops to the plane contact walked with next one ladder, supporter again shift into rear roller 1(as shown in Figure 10), forward movement stair climbing pedal 20 rotates clockwise under gravity a little again, automatically reset, so far this stair ladder step complete under perambulator, complete the decline (as shown in figure 11) of a ladder step.So repeatedly complete whole process downstairs.
Two, the embodiment of the perambulator capable of climbing stairs that stair-climbing device is respectively made up of two or more stair climbing pedals two rear roller strut bars 2 is enumerated below.
The stair-climbing device of the utility model perambulator capable of climbing stairs both can be that two rear roller strut bars 2 are respectively made up of two stair climbing pedals, also can be that two rear roller strut bars 2 are respectively made up of plural stair climbing pedal, the preferred stair-climbing device of the utility model is respectively made up of two stair climbing pedals two rear roller strut bars 2, and Figure 12, Figure 13 are its structural representation.The fan-shaped central angle of two stair climbing pedals is all less than 180 degree, and radius is identical, fan-shaped, counterweight 26 is housed, and makes the center of gravity of stair climbing pedal be partial to one side that counterweight 26 is housed; Stair climbing pedal I 22 below the utility model is preferred is arranged on the outside of rear roller strut bar 2, and in the outside of contiguous rear roller 1, and the stair climbing pedal II 24 of top is arranged on the inner side of rear roller strut bar 2, the rotational plane of two stair climbing pedals all with rear roller 1 place plane parallel; Certain two stair climbing pedals also can be arranged on the same side not copline of rear roller strut bar 2, but the distance between the turning cylinder of two stair climbing pedals is just greater than the fan-shaped radius of a stair climbing pedal, otherwise there will be interference when moving.Every root rear roller strut bar 2 of perambulator body arranges the bearing 27 of two stair climbing pedals, and each bearing has the axle sleeve suitable with the turning cylinder of stair climbing pedal, and two bearings unite two into one by the utility model; The position of these two axle sleeves should make the projection of two stair climbing pedals have overlap, the height of the projection intersection point of the fan-shaped curved line of two stair climbing pedals is lower than the height of the turning cylinder 23 of following stair climbing pedal I 22, and this intersection point is external at perambulator body, certainly also higher than the height of turning cylinder 23, but slight impact can be caused; Simultaneously, the installation site of the turning cylinder 23 of a following stair climbing pedal I 22 is higher than the wheel shaft installation site of rear roller 1, in fact because stair climbing pedal I 22 is arranged on the outside of rear roller 1, so the installation site of the turning cylinder 23 of stair climbing pedal I 22 is higher than the upper wheel rim of rear roller 1; The projection of stair climbing pedal I 22 overlaps with the projection of contiguous rear roller 1, and the intersection point of roller 1 back rearward, overlapping region is outer without perambulator entity, and the height of this intersection point is lower than the axle articulation of rear roller 1; Nadir on following stair climbing pedal I 22 curved line is higher than the nadir of contiguous rear roller 1 wheel rim.Respectively stair climbing pedal I 22 and stair climbing pedal II 24 are arranged on the bearing 27 of perambulator body rear roller strut bar 2 by axis hole with turning cylinder 23 and turning cylinder 25, at the seat of perambulator horizontal by 20 degree of angles, during the state of namely stair activity (as shown in figure 14), the height of turning cylinder 25 center height of the stair climbing pedal II 24 in top and the upper extreme point of curved line is higher than the height intending ladder stand step; The upper extreme point of the curved line of stair climbing pedal II 24 is in the outside of car body; Some is overlapping for the projection of following stair climbing pedal I 22 and the projection of contiguous rear roller 1, the outside of the pedal curved line of its overlapping region between the contact point leaning on the projection intersection point of vehicle frame back to one, top stair climbing pedal II 24 and ladder to walk, without perambulator entity, that is to say that the work arcuate line segment of two stair climbing pedals is in the outside of perambulator body.Stair-climbing device is adopted respectively to be made up of two stair climbing pedals two rear roller strut bars 2, the physical dimension of stair climbing pedal is reduced, stair climbing pedal II 24 and the terraced contact point walked of top, the contact point projector distance in the horizontal direction walked with contiguous rear roller 1 and ladder is smaller, usually the requirement being less than the ladder step degree of depth is met, even if this distance is greater than the ladder step degree of depth, do not affect automatically reseting of the stair climbing pedal II 24 of top yet.
Figure 14-Figure 18 is signal of going upstairs, and when going upstairs, handle 3 is at front and rear roller 1 rear, is retreat shape.When perambulator has just started stair climbing, the curved line of stair climbing pedal II 24 just contacts with the terraced intersection point walked, now the supporter of whole perambulator body be rear roller 1(as shown in figure 14); External force dilatory under, it is stair climbing pedal II 24 that the supporter of perambulator body is shifted by rear roller 1, the strong point is the intersection point of ladder step, be the corresponding point that stair climbing pedal II 24 contacts with the strong point by the strong point, stair climbing pedal II 24 rotates clockwise around the strong point, the turning cylinder 25 of stair climbing pedal II 24 rises because of rotation, makes perambulator body thereupon up simultaneously; When perambulator body rise on stair climbing pedal II 24 by the strong point, when overlapping with the curved line intersection point of the projection of two stair climbing pedals (as shown in figure 15), the supporter continuing traction perambulator body is again stair climbing pedal I 22 by stair climbing pedal II 24 transfer, after supporter transfer, stair climbing pedal II 24 automatically resets under Gravitative Loads, stair climbing pedal I 22 rotates clockwise around the intersection point of ladder step simultaneously, makes perambulator body further up (as shown in figure 16); Continue dilatory perambulator, when being overlapped by the intersection point of the strong point and the projection of stair climbing pedal I 22 and the projection of rear roller 1 (as shown in figure 17), continuing the dilatory supporter that makes is rear roller 1 by stair climbing pedal I 22 transfer, and after supporter transfer, stair climbing pedal I 22 automatically resets under Gravitative Loads; And the intersection point that rear roller 1 walks around ladder rotates clockwise, thus make perambulator body up, until rear roller 1 just to walk horizontal surface with ladder tangent, this stair ladder step (as shown in figure 18) climbed up by whole perambulator.Repeat said process and complete stair climbing work.
Figure 19-Figure 24 is signal downstairs.When perambulator is gone downstairs, handle 3 is at rear rear roller 1 front, is the shape that moves ahead.During beginning, the vertical plane surface at the wheel shaft center of roller 1 overlaps with the facade that this ladder walks later, and the strong point is the intersection point (as shown in figure 19) of ladder step; Under the effect of external force, rear roller 1 rotates counterclockwise around the strong point, the wheel shaft of rear roller 1 declines because of rotation, make perambulator body also thereupon descending, when rear roller 1 overlapped (as shown in figure 20) by the strong point with the intersection point of the projection of stair climbing pedal I 22 and the projection of rear roller 1, continuing to apply external force again makes supporter be stair climbing pedal I 22 by rear roller 1 transfer, stair climbing pedal I 22 rotates counterclockwise around the strong point, its turning cylinder 23 declines because of rotation, makes perambulator body descending (as shown in figure 21); When on stair climbing pedal I 22 by the strong point, overlap (as shown in figure 22) with the intersection point of the projection of stair climbing pedal I 22 and the projection of stair climbing pedal II 24, continuation effect make supporter by stair climbing pedal I 22 shift be stair climbing pedal II 24; After supporter transfer, stair climbing pedal I 22 automatically resets under the effect of deadweight, and stair climbing pedal II 24 rotates counterclockwise around the strong point, turning cylinder 25 on it declines because of rotation, make perambulator body descending further, until the horizontal surface that rear roller 1 and next one ladder walk contacts (as shown in figure 23), after rear roller 1 becomes supporter again, stair climbing pedal II 24 automatically resets under Gravitative Loads, and so far perambulator is descending, and a ladder walks (as shown in figure 24).So repeatedly complete whole work of going downstairs.
The embodiment that the stair-climbing device being enumerated above the utility model perambulator capable of climbing stairs is preferably respectively made up of one and two stair climbing pedals two rear roller strut bars 2, and the embodiment that stair-climbing device is respectively made up of two or more stair climbing pedal two rear roller strut bars 2 and such scheme similar, repeat no more.
As the improvement of the stair-climbing device to the utility model perambulator capable of climbing stairs in above-mentioned one and two parts, stair climbing pulley 28 is adopted to substitute stair climbing pedal, stair climbing pulley 28 is circular wheel, its radius is equal with the replaced fan-shaped radius of stair climbing pedal, and correlationship remains unchanged, the stair climbing pulley 28 of same radius circular is namely only adopted to substitute fan-shaped stair climbing pedal.Principle of work is identical with the utility model perambulator capable of climbing stairs that stair climbing pedal forms, just without the reset issues of stair climbing pedal.Figure 25 is the utility model perambulator capable of climbing stairs structural representation of stair climbing pulley composition, illustrates the situation that every root rear roller strut bar 2 has two stair climbing pulleys 28.
The stair-climbing device that the utility model adopts is not only applicable to perambulator stair climbing, is also applicable to the utensil stair climbings such as shopping cart, loading-unloading vehicle and draw-bar box.
Abundant description is done to the utility model perambulator capable of climbing stairs herein; do not deviating from invention spirit and scope situation in this paper; can some amendments be done to the utility model and improve; this has the people of ordinary skill one is apparent, but all falls into the utility model protection domain.
Claims (3)
1. a perambulator capable of climbing stairs, comprises perambulator body, roller; Described perambulator body is made up of vehicle frame and seat and backrest, and vehicle frame mainly contains two symmetrical side vehicle frames, each side vehicle frame has a front wheel strut bar and a rear roller strut bar (2), two rear rollers (1) are parallel to each other, and seat and backrest are made by flexible fabric and be fixed on frame for baby cart; It is characterized in that: described perambulator capable of climbing stairs is provided with stair-climbing device, this device forms primarily of stair climbing pedal, described stair climbing pedal is fan-shaped, small end has an axis hole, and described stair climbing pedal is movably connected on the bearing (27) that is fixed on the rear roller strut bar (2) of side vehicle frame through this axis hole by turning cylinder; Described stair climbing pedal is positioned at the outside of rear roller strut bar (2), or is positioned at the inner side of rear roller strut bar (2); Stair climbing pedal can rotate moving axis rotate and rotational plane is not coplanar but parallel with rear roller (1) place plane, the fan-shaped curved line of a part of stair climbing pedal is in the outside of perambulator body; Every root rear roller strut bar (2) has a stair climbing pedal at least, and the stair climbing pedal on two described rear roller strut bars (2) is symmetrical;
The stair-climbing device of described perambulator capable of climbing stairs respectively only has a stair climbing pedal to form by two rear roller strut bars (2); The installation site of the turning cylinder (21) of this stair climbing pedal (20) is higher than the wheel shaft installation site of rear roller (1), when the angle of described perambulator capable of climbing stairs and horizontal surface is the angle of stair activity, the height of the curved line end points of described stair climbing pedal (20) is higher than the height intending the highest ladder step of climbing; The contact point that stair climbing pedal (20) walks with ladder, is less than the terraced degree of depth walked with the intersection point distance in the horizontal direction of the projection of stair climbing pedal (20) and the projection of contiguous rear roller (1); Nadir on the fan-shaped curved line of stair climbing pedal (20) is higher than the nadir of rear roller (1) wheel rim, the projection of described stair climbing pedal (20) and the projection of rear roller (1) overlap, the outside of the pedal curved line of its overlapping region between the contact point leaning on the projection intersection point of vehicle frame back to stair climbing pedal (20) and ladder to walk, without perambulator entity, that is to say that the work arcuate line segment of stair climbing pedal (20) is in the outside of perambulator body;
The stair-climbing device of described perambulator capable of climbing stairs is made up of two or more stair climbing pedals by two rear roller strut bars (2) are above each; The installation site of the turning cylinder I (23) of a stair climbing pedal I (22) is higher than the wheel shaft installation site of rear roller (1) bottom, when the angle of described perambulator capable of climbing stairs and horizontal surface is the angle of stair activity, topmost the height of the curved line end points of a stair climbing pedal II (24) is higher than the height intending the highest ladder step of climbing; Adjacent two stair climbing pedals are in the same side of roller supporting bar (2), or respectively in the both sides of roller supporting bar (2), adjacent two stair climbing pedals are not coplanar and parallel, and each described stair climbing pedal rotates mutually non-interference; The projection of adjacent two stair climbing pedals overlaps, in overlapping region, the projection intersection point of two curved lines is in the outside of perambulator body, some is overlapping for the projection of described stair climbing pedal I (22) bottom and the projection of contiguous rear roller (1), its overlapping region without perambulator entity, that is to say that the work arcuate line segment of stair climbing pedal is in the outside of perambulator body in the outside of the pedal curved line of the projection intersection point by vehicle frame back extremely topmost between a stair climbing pedal II (24) and the terraced contact point walked; Nadir on the fan-shaped curved line of stair climbing pedal I (22) is bottom higher than the nadir of contiguous rear roller (1) wheel rim.
2. perambulator capable of climbing stairs according to claim 1, it is characterized in that: the fan-shaped central angle of described stair climbing pedal is less than 180 degree, fan-shaped is equipped with counterweight (26), and in a free state, fan-shaped another side raises up.
3. perambulator capable of climbing stairs according to claim 1, is characterized in that: described stair climbing pedal is substituted by stair climbing pulley (28), and described stair climbing pulley (28) is circular wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443948.4U CN204871128U (en) | 2015-06-26 | 2015-06-26 | Climb stair bassinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443948.4U CN204871128U (en) | 2015-06-26 | 2015-06-26 | Climb stair bassinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204871128U true CN204871128U (en) | 2015-12-16 |
Family
ID=54815538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520443948.4U Expired - Fee Related CN204871128U (en) | 2015-06-26 | 2015-06-26 | Climb stair bassinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204871128U (en) |
-
2015
- 2015-06-26 CN CN201520443948.4U patent/CN204871128U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20160626 |