CN86105089B - Folded climbing pushcar - Google Patents

Abstract

Folded climbing pushcar belongs to civilian hand push and climbs the building dolly, by the midship mounting fold mechanism, and 2 symmetrically arranged round body supporting folding bodies, varied angle vehicle frame and telescopic frame constitute.This car both can also can be used for climbing the building at level walking, also can be vertically and radial folding, be convenient to portable carrying, and be fit to tourism.This bassinet structure is reasonable, promptly is suitable for the baby and sits, crouches or adult's seat, is suitable for again loading on certain weight and goes downstairs.

Description

Folded climbing pushcar

The invention belongs to civilian hand push and climb the building dolly.

Before the present invention, existing climbing do not have axial folding in the building dolly, and trolley frame mostly is two immutable rectangle racks, only is that two rectangle planes are realized 180 degree doublings or with the method realization minification of suit.And the building function of climbing of dolly is by two groups of fixed type equilateral triangles, positive quadrangle, or the steamboat of the drift angle place of positive pentagon framework setting, axis around equilateral triangle, quadrangle or positive pentagon center-point rotates and the steamboat rotation, make the principle of dolly, be pressed in successively and realize on each steps of stair according to the mutual interlock of wheel and rack.This wheel carrier of climbing the building dolly all is fixed, can not fold, again because of only connecting by axis between vehicle frame and the wheel carrier, car frame can not oneself stand on the ground, can not work as perambulator and use, only can load on gaholder, grain sack and so on the article and go downstairs, range of use is restricted.

The object of the present invention is to provide and a kind ofly sit, crouch or the adult sits or loads certain weight stair activity for the baby, and can realize vertically and radial folding, be convenient to portable carrying, the hand push that is suitable for travelling is climbed the building dolly.

Main points of the present invention are to have designed a kind ofly by the inner space at two sketch plates separated by a distance one group of folding hinge support to be set and to form hard support in the middle of making two sketch plates, three groups of above folding hinge tension parts are set, it is tight to form soft drawn in the middle of two sketch plates, 3 can constitute a plane, with in the middle of one group hard support join three groups tight with the upper periphery soft drawn, constitute the midship mounting fold mechanism of the relative position of fixing two sketch plates thus; By shaft device in two sketch plates outside is symmetrically arranged and be arranged on that two groups of right-angled crossings on shaft device connect in this, and form the frameworks of four steamboats of four groups of supports, the framework that is constituted can along in the round body supporting folding body of shaft radial folding; Be made of mechanisms such as symmetrically arranged vehicle frames on two sketch plates, the blocking device control that the folding hinge support is arranged on this strut member is deployable or folding, drives the expansion or close vertically in the lump of both sides sketch plate, wheel carrier, vehicle frame.

Another main points of the present invention are that vehicle frame is made up of varied angle vehicle frame and telescopic frame, and the varied angle vehicle frame is made of kinematic pair, controlled by bearing force, tightening force, can change to 60 degree of full expand state from 0 degree of folded state; Its telescopic frame also is subjected to bearing force, tightening force control, can be on sketch plate, move up and down and locate, its right-angled crossing connects framework and controlled by the registration device on the axis, but the right-angled crossing abnormity, make four steamboats place four drift angle places of square according to rack-and-gear phase occlusal principle, be pressed in successively on each step of stair, be fit to climb the building walking, again can be along radially doubling of axis.Therefore, of the present inventionly climb that the building dolly can be realized axially, radial folding.

Shown in Fig. 1 to 10, be a kind of embodiment of folded climbing pushcar of the present invention, wherein:

Fig. 1 is the three-dimensional structure diagram of folded climbing pushcar;

Fig. 2 is a midship mounting fold mechanism backsight constructional drawing;

Fig. 3 is steamboat wheel carrier and vehicle frame positioning device structure figure;

Fig. 4 is an axis wheel frame positioning device constructional drawing;

Fig. 5 is varied angle vehicle frame and kinematic pair hinge arrangement figure;

Fig. 6 is a bicycle shed cloth pole hemisphere face space positioning apparatus constructional drawing;

Fig. 7 is the body frame structure for automotive schematic side view that is suitable for baby's sleeping carriage shape;

Fig. 8 is suitable for baby's body frame structure for automotive schematic side view of shape by bus;

Fig. 9 is suitable for being grown up shape body frame structure for automotive schematic side view by bus;

Figure 10 is the vehicle frame folding schematic side view.

Among Fig. 1: 1,1A is a sketch plate, and 2 is peripheral symmetrical square hole, 3,5,27 is folding hinge tension part, 4 is the folding hinge support, and 5A is the flute profile pulling-on piece, and 6 are the locking pipe, 7 are the holder of tension circle, and 8 are the tension circular groove, and 9 are the location jack, 10 is the vehicle frame mobile jib, and 11 is hollow axle bumper, and 12 is steamboat, 13A is back vehicle frame and wheel frame positioning device, and 13 is positioning pluging rod, 14A, 14B, 14C, 14D is a supporting steel wire, 15 is locating dowel pin, and 16 is axis, and 16A is middle shaft device, 16B is that two groups of right-angled crossings connect, and 17 is foreign side's plate, and 18 is interior side's plate, 19 is half-watt shape strut member, and 20 is half-watt shape template, and 21 is that the location turns to pallet, 22 is long fulcrum bar, and 23 is short strut, and 24 is the varied angle Connection Block, 25 is the varied angle bend pipe, and 26 is lockplate, and 28 is folded segment, 29 is vehicle seat cloth, and 30 is rotary seat, and 31 is soft stamen axle, 32 is bicycle shed cloth pole, and 33 is bicycle shed cloth, and 34 is folded segment, 35 pay bar for vehicle frame, 36 is the vehicle frame Connection Block, and 37 is vehicle seat cloth pole, and 38 is the spill butt junction.

Now the invention will be further described in conjunction with Fig. 1 to Figure 10.Folded climbing pushcar as a kind of embodiment of the present invention (Fig. 1 is to shown in Figure 10), be provided with an axial support fold mechanism (1～6,26,27), the round body supporting folding body of two symmetries (11,12,14～20), the telescopic frame of two symmetries (8～10,13 34～38), a vehicle seat cloth (29), a bicycle shed cloth (33).Wherein (6,26) are the hinge support blocking device, (7,21～24) are the trapezium kinematic pair, (9,13) are vehicle frame and wheel frame positioning device, (15,19,20) are the steel wire frame registration device, (30～32) are bicycle shed cloth pole hemisphere face space positioning apparatus, and (36～38) are the telescopic frame registration device.

The axial support fold mechanism is by two symmetrically arranged sketch plates (1), (1A), folding hinge support (4), and folding hinge tension part (3), (5), (27) and hinge support blocking device are formed.Folding hinge support (4), by 4 stay bearing plates, be H shape by the hinged formation of bearing pin (4A), the width of middle hinged place is less than the width of hinged place, two ends, thereby improved the stability under the holding state, the hinge support blocking device is by locking pipe (6), lockplate (26) is formed, the bottom of locking pipe (6) is symmetrical arranged two skew notches (6A), two skew notches (6A) connect by the middle hinged place of bearing pin (4A) with folding hinge support (4), under holding state, there is a seam this below, hinged place, lockplate (26) may be stuck in this seam, the two ends of folding hinge support (4) respectively with two sketch plates (1), the middle part of (1A) connects.The two ends of folding hinge tension part (3), (5), (27), respectively with 2 sketch plates (1), (1A) on peripheral symmetrical square hole (2) in the joint piece that stretches out connect.Folding hinge tension part (5) is made up of vertical pulling steel wire (5B), flute profile pulling-on piece (5A), adjustment joint (5D), accent cap (5C), spring (5E).Its flute profile pulling-on piece (5A) is the shared pulling-on piece (seeing Fig. 1) of two adjacent groups hinge tension part, which is provided with circular hole, the upper end of locking pipe (6) is passed this circular hole and is connected with pedal (6B), and be an integral body, folding hinge tension part (27) is by vertical pulling steel wire (27B), flute profile pulling-on piece (27A), pulling-on piece (27G), adjust joint (27D), transfer cap (27C), spring (27E) is formed, lockplate (26) is fixed on flute profile pulling-on piece (27A) and goes up (seeing accompanying drawing 2), and folding hinge tension part (3) is by oblique rollering steel silk (3A), (3B), adjust joint (3D), transfer cap (3C), spring (3E) is formed.Vertical pulling steel wire (5B) and flute profile pulling-on piece (5A), vertical pulling steel wire (27B) and pulling-on piece (27G), pulling-on piece (27G) and flute profile pulling-on piece (27A), oblique rollering steel silk (3B) all is hinged with adjusting joint (3D), vertical pulling steel wire (5B), (27B) and accent cap (5C), (27C), oblique rollering steel silk (3A) all is threaded with transferring cap (3C), adjust joint (3D), (5D), (27D), spring (3E), (5E), (27E) are socketed in and transfer on cap (3C), (5C), (27C).Adjust joint (5D), (27D) is respectively at two sketch plates (1), peripheral symmetrical square hole (2) on (1A) is located and telescopic frame, the connection anchor fitting tension circular groove (8) of varied angle vehicle frame, tension circle holder (7) connects by bearing pin (5F) or bearing pin (27F), the two ends oblique rollering steel silks (3A) of folding hinge tension part (3), (3B) has annular knurl, be inserted in bearing pin (5F) respectively, in the pin shaft hole of (27F), compelling force makes the pin shaft hole distortion, with oblique rollering steel silk (3A), (3B) has the termination clamp fitting of annular knurl at (5F), in the pin shaft hole of (27F), and replacement spring cotter, folding hinge tension part (3) is at two sketch plates (1), arranged in a crossed manner between (1A), the control parallel displacement, oblique rollering steel silk (3A), (3B) is not isometric, to adapt to the needs that can fold at oblique tension state.

The axial support fold mechanism launches and folding process is to depress pedal (6B) when needs are opened, folding hinge support (4) is rotated around bearing pin (4A), make two sketch plates (1), (1A) launches, by transferring cap (3C), (5C), (27C) is with two sketch plates (1), the distance of (1A) midship mounting point is transferred to the total length less than folding hinge support (4), so after depressing pedal (6B), folding hinge support (4) can not surpass two sketch plates (1), the line of (1A) midship mounting point, can only make folding hinge tension part (3), (5), (27) tighten, a slit appears in the bottom of the hinged place of folding hinge support at this moment, at this moment pedal (6B) again presses down with the foot down, rotate counterclockwise pedal (6B) simultaneously, then locking pipe (6) is with moving on the skew notch (6A), and lockplate (26) enters this slit by the pulling force of folding hinge tension part (27).Lift pin this moment, and lockplate is sandwiched in the slit, and block folding hinge support (4) and make it motionless, replaces foot-operated effect.Because two sketch plates (1), (1A) arranged outside axis, the building climbing wheel frame, the varied angle vehicle frame, the telescopic frame (see figure 1) is then wholely climbed the car shape that the building dolly is launched into to be needed.

When needs are folding, again depress pedal (6B), the limit presses down with the foot, the limit clockwise rotates pedal (6B), and the slit of the bottom, hinged place of folding hinge support (4) enlarges, and skew notch (6A) drive locking pipe (6) moves down simultaneously, lockplate (26) is released, lift pin again, the spring (3E) on folding hinge tension part (3), (5), (27), (5E), (27E) make it overcome hinged dead point under the tension separately, by hinge-point doubling separately.Among Fig. 2 shown in the line of position, locking pipe (6) moves on to (6C) and locates, flute profile pulling-on piece (5A) moves on to (5G) and locates, adjustment joint (3D) moves on to (3F) and locates, bearing pin (4A) moves on to (4B) and locates, flute profile pulling-on piece (27A) moves on to (27H) and locates, and sketch plate (1) moves on to (1B) and locates, and climbs the building dolly like this and just can realize axially folding.Round body supporting folding body, comprise middle shaft device, 4 steamboats (12) and 4 groups 16 supporting steel wires (14A), (14B), (14C), (14D), little wheel apparatus constitute (see figure 3) by butt tube (11A), hollow axle bumper (11), steel ball (11B), axle bowl (12A), steamboat (12).Axle bowl (12A) is fixed in the axis hole of steamboat (12), two hollow axle bumpers (11) insert from the two ends of axle bowl (12A), connect by butt tube (11A), steel ball (11B) is arranged between axle bowl (12A) and the hollow axle bumper (11), steel wire (14A), (14B) and steel wire (14C), (14D) is connected with the outer circular hole of two hollow axle bumpers (11) respectively, middle shaft device is by two blocks of foreign side's plates (17), square plate (18) in two, axis (16), two half-watt shape strut members (19), two half-watt shape templates (20), 8 locating dowel pins (15), axle bowl (17B), axle bumper (16C), steel ball (16D) constitutes.Axle bowl (17B) makes an integral body with foreign side's plate (17), and axis (16) makes an integral body with sketch plate (1), (1A), adopts plastic material in the design, and axle bumper (16C) is cast with axis (16), sketch plate (1), (1A) consubstantiality.The outer diameter of axle bumper (16C) is slightly less than axle bowl (17B) internal orifice diameter, therefore axle bowl (17B) can pack into from axle bumper (16C), by the elastic force distortion of spring wire (14A), (14B), (14C), (14D), steel ball (16D) can be arranged between axle bowl (17B) and the axle bumper (16C).Half-watt shape strut member (19) is arranged in two between the square plate (18), half-watt shape template (20) is arranged in the guide groove (19A) on the half-watt shape strut member (19), the little retaining (15A) at locating dowel pin (15) rear portion places in the oblique guiding trough (20A) on the half-watt shape template (20), in the knock hole (18A) in the front end of locating dowel pin (15) inserts and is arranged on square plate (18), the foreign side's plate (17), (17A).The characteristics of round body supporting folding body are that 16 steel wires divide four groups, every group has four supporting steel wires (14A), (14B), (14C), (14D), wherein per two supporting steel wires (14A), (14B), (14C), one end of (14D) is separately fixed at the outer of two hollow axle bumpers (11), two hollow axle bumpers are by the butt joint of connection pipe (11A) flange, steel wire (14A), (14B), (14C), (14D) also is joined together, its other end respectively by crimping be weldingly fixed on foreign side's plate (17) or the pair of parallel limit of interior side's plate (18) on, constitute the steel wire frame that the four sides cone shape supports wheel body, half-watt shape template (20) and locating dowel pin (15) control that this steel wire frame is arranged on the half-watt shape strut member (19) can be along axis (16) radial foldings.

Back vehicle frame is a telescopic back vehicle frame, by tension circular groove (8), vehicle frame mobile jib (10), vehicle frame is paid bar (35), folded segment (34), vehicle seat cloth pole (37), spill butt junction (38), vehicle frame Connection Block (36), back vehicle frame and wheel frame positioning device (13A) are formed, tension circular groove (8) is in sketch plate (1), (1A) upper periphery symmetry square hole (2) and collapsible hinge tension part (3), (5), (27) connect (see figure 2), vehicle frame mobile jib (10) is a straight tube, and insert between tension circular groove (8) and sketch plate (1A) or the sketch plate (1) its lower end, bar (35) socket is paid with vehicle frame in its upper end, at socket place vehicle frame Connection Block (36) is set, vehicle seat cloth pole (37) is arranged on the vehicle frame Connection Block (36), and spill butt junction (38) is arranged on the vehicle seat cloth pole (37).Vehicle seat cloth pole (37) can drive vehicle frame mobile jib (10) and radially rotate 360 degree along it along axial rotation 90 degree of vehicle frame mobile jib (10), and when vehicle seat cloth pole (37) when vertically placing, vehicle seat cloth (29) can become the vehicle seat (see figure 8); When vehicle seat cloth pole (37) when keeping flat, vehicle seat cloth (29) becomes bed surface shape (see figure 7), and radially rotating 90 degree when vehicle seat cloth pole (37) along vehicle frame mobile jib (10) can dock by spill butt junction (38) with another vehicle seat cloth pole.Back vehicle frame and wheel frame positioning device are by positioning pluging rod (13), the positioning socket (9) that has retainer spring constitutes, positioning pluging rod (13) front end is provided with groove and notch, its rear end is provided with revolves handle, positioning socket (9) is arranged on the vehicle frame mobile jib (10), be provided with spring in it, when climbing the building dolly when driving a vehicle, positioning pluging rod (13) is inserted in the positioning socket (9), in the spring card entry slot by Connection Block (11A) on the level land, thereby with the stationkeeping of steamboat, climb the building dolly and just can stand on ground certainly, at level walking, when positioning pluging rod (13) is transferred to, four steamboats can rotate around axis, climb the building dolly and just can realize climbing the building function.

Front vehicle frame is the varied angle front vehicle frame, turn to pallet (21), (21A), long fulcrum bar (22), short strut (23), varied angle Connection Block (24), varied angle bend pipe (25), folded segment (28) by the holder of tension circle (7), (7A), location, the hemisphere face space positioning apparatus is formed.Varied angle bend pipe (25) upper end is installed with varied angle Connection Block (24)), dock with opposite side varied angle bend pipe by the bearing pin movable joint in the folded segment (28) its lower end.Tension circle holder (7) is at two sketch plates (1), (1A) upper periphery symmetry square hole (2) and collapsible hinge tension part (3), (5), (27) connect (see figure 4), the location of front vehicle frame turns to pallet (21), (21A) is arranged on tension circle holder (7), between (7A) and the sketch plate (1A), and respectively with short strut (23), the riveted joint of one end or the welding of long fulcrum bar (22), tension circle holder (7), (7A) with turn to pallet (21), (21A) coaxial line, this axis and short strut (23), the intersect vertical axis of long fulcrum bar (22), with sketch plate (1), the plate face of (1A) is vertical, so short strut (23), long fulcrum bar (22) can hold in the palm (7) with the tension circle, (7A) rotates for the axle center.The other end of short strut (23), long fulcrum bar (22) connects by two bearing pins and varied angle Connection Block (24).Because distance between two tension circle holders (7), (7A) and the distance between two bearing pins on the Connection Block (24) are not isometric, long fulcrum bar (22) also is not isometric with short strut (23).To strain between circle holder (7), (7A) is motionless limit, constitute the trapezium kinematic pair, this kinematic pair is subjected to the control of bearing force and pulling force, varied angle bend pipe (25) on the connection seat (24) is spent from 0 of folded state, change to 60 degree of full expand state, status, bicycle shed cloth pole hemisphere face space device is by rotary seat (30), and soft stamen axle (31), bicycle shed cloth pole (32) are formed.Through hole (30A) is set on the rotary seat (30), through hole (30A) is enclosed within the upper end of varied angle bend pipe (25), can radially revolve three-sixth turn along varied angle bend pipe (25) upper end, rotary seat (30) with the tangent direction of this hand of rotation on pin shaft hole (30B) is set, bicycle shed cloth pole (32) one terminations are located to connect with rotary seat (30) at pin shaft hole (30B) by bearing pin, bicycle shed cloth pole (32) can along varied angle bend pipe (25) upper end axially rotate up and down 90 the degree, soft stamen axle (31) injects varied angle bend pipe (25) upper end, its bared end is fixed on the bicycle shed cloth pole (32), soft stamen axle (31) with vehicle seat cloth pole (32) in vertical direction, the angular transformation of horizontal direction, up-and-down movement or rotation in varied angle bend pipe (25) upper end, play positioning action according to its friction force each other, two bicycle shed cloth poles (32) can connect together and form new cross bar, vehicle seat cloth can place this cross bar and the cross bar formed by vehicle seat cloth pole (37) between be the seat face, (see figure 9) can be for adult's seat.

Folded climbing pushcar axially folding sees among Fig. 2 that shown in the line of position, radial folding is seen shown in Figure 10, and bicycle shed cloth pole (32) and varied angle bend pipe (25) are overlapping parallel with long fulcrum bar (22), short strut (23) among the figure.

Claims (8)

1, folded climbing pushcar, comprise midship mounting fold mechanism and two round body supporting folding body and vehicle frames that four steamboats are arranged that are arranged on these mechanism two ends, it is characterized in that said midship mounting fold mechanism is by at two sketch plates (1), (1A) corresponding inboard and inner space one group of folding hinge support (4) being set and folding hinge tension part (3), (5), (27) formation more than three groups; Said round body supporting folding body by two sketch plates (1), (1A) relatively the outside symmetrically arranged in shaft device (16A) and two groups of right-angled crossings being arranged on the shaft device in this (16A) connect (16B), be foldable frame (14A), (14B), (14C), (14D) formations that four groups of four sides cone shapes support four steamboats (12); Said vehicle frame is that telescopic frame is symmetricly set on two sketch plates (1), (1A).

2, according to the described folded climbing pushcar of claim 1, it is characterized in that said folding hinge support (4) is by four stay bearing plates, be H shape constitutes by bearing pin (4A) hinge knot together, the width of middle hinged place is less than the width of hinged place, two ends, the two ends of folding hinge support (4), the middle part with two sketch plates (1), (1A) connects respectively.

3, according to the described folded climbing pushcar of claim 1, it is characterized in that said folding hinge tension part (3), (5), (27) two ends, respectively with two sketch plates (1), the attaching parts that stretches out in the peripheral symmetrical square hole (2) on (1A) connects, wherein to draw be part (5) to the folding hinge, by vertical pulling steel wire (5B), flute profile pulling-on piece (5A), adjust joint (5D), transfer cap (5C), spring (5E) is formed, folding hinge tension part (27), by vertical pulling steel wire (27B), flute profile pulling-on piece (27A), pulling-on piece (27G), adjust joint (27D), transfer cap (27C), spring (27E) is formed, and folding hinge tension part (3) is by oblique rollering steel silk (3A), (3B), adjust joint (3D), transfer cap (3C), spring (3E) is formed.Vertical pulling steel wire (5B) and flute profile pulling-on piece (5A), vertical pulling steel wire (27B) and pulling-on piece (27G), pulling-on piece (27G) and flute profile pulling-on piece (27A), oblique rollering steel silk (3B) all is hinged with adjusting joint (3D), vertical pulling steel wire (5B), (27B) and accent cap (5C), (27C), oblique rollering steel silk (3A) all is threaded with transferring cap (3C), adjust joint (3D), (5D), (27D), spring (3E), (5E), (27E) are socketed in and transfer on cap (3C), (5C), (27C).

4, according to the described folded climbing pushcar of claim 1, it is characterized in that said middle shaft device (16A), by two blocks of foreign side's plates (17), square plate (18) in two, axis (16), two half-watt shape strut members (19), two half-watt shape templates (20), eight locating dowel pins (15), axle bowl (17B), axle bumper (16C), steel ball (16D) constitute, half-watt shape strut member (19) is arranged in two between the square plate (18).Half-watt shape template (20) is arranged in the guide groove (19A) on watt shape strut member (19), the little retaining (15A) at locating dowel pin (15) rear portion places in the oblique guiding trough (20A) on the half-watt shape template (20), in the knock hole (18A) in the front end of locating dowel pin (15) inserts and is arranged on square plate (18), the foreign side's plate (17), (17A).

5, according to the described folded climbing pushcar of claim 1, it is characterized in that said vehicle frame is made up of varied angle vehicle frame and telescopic frame, telescopic frame is by tension circular groove (8), vehicle frame mobile jib (10), vehicle frame is paid bar (35), folded segment (34), vehicle seat cloth pole (37), spill butt junction (38), vehicle frame Connection Block (36), back vehicle frame and wheel frame positioning device (13A) are formed, tension circular groove (8) is at two sketch plates (1), (1A) upper periphery symmetry square hole (2) and collapsible hinge tension part (3), (5) (27) connect, vehicle frame mobile jib (10) is a straight tube, its lower end insert tension circular groove (8) and sketch plate (1A) or and sketch plate (1) between, bar (35) socket is paid with vehicle frame in its upper end, at socket place vehicle frame Connection Block (36) is set, vehicle seat cloth pole (37) is arranged on the vehicle frame Connection Block (36), spill butt junction (38) is arranged on the vehicle seat cloth pole (37), vehicle seat cloth pole (37) can be along axial rotation 90 degree of vehicle frame mobile jib (10), drive vehicle frame mobile jib (10) and rotate 360 degree along its radial level, the varied angle vehicle frame is by tension circle holder (7), the location turns to pallet (21), long fulcrum bar (22), short strut (23), varied angle Connection Block (24), varied angle bend pipe (25), folded segment (28), bicycle shed cloth pole hemisphere face space positioning apparatus is formed, varied angle bend pipe (25) passes varied angle Connection Block (24), its upper end connects with bicycle shed cloth pole hemisphere face space positioning apparatus, dock with opposite side varied angle bend pipe (25) by the bearing pin movable joint in the folded segment (28) its lower end, the location turns to pallet (21) to be arranged between tension circle holder (7) and the sketch plate (1), and with short strut (23), one end of long fulcrum bar (22) connects, and can serve as that axle rotates with tension circular hole (7).

6, according to claim 1 and 5 described folded climbing pushcars, it is characterized in that said back vehicle frame and wheel frame positioning device, by positioning pluging rod (13), the positioning socket (9) that has retainer spring constitutes, positioning pluging rod (13) front end is provided with groove and notch, its rear end is provided with revolves handle, and positioning socket (9) is arranged on the vehicle frame mobile jib (10), and positioning pluging rod (13) can pass through butt tube (11A) and insert in the positioning socket (9).

7, according to claim 1 and 5 described folded climbing pushcars, it is characterized in that said bicycle shed cloth hemisphere face space positioning apparatus is by rotary seat (30), soft stamen axle (31), bicycle shed cloth pole (32) is formed, through hole (30A) is set on the rotary seat (30), be enclosed within the upper end of varied angle bend pipe (25), can radially revolve three-sixth turn along varied angle bend pipe (25) upper end, rotary seat (30) with the tangent direction of this hand of rotation on pin shaft hole (30B) is set, bicycle shed cloth pole (32)) termination is by bearing pin (30B), connect at pin shaft hole place and rotary seat (30), bicycle shed cloth pole (32) can along varied angle bend pipe (25) upper end axially rotate up and down 90 the degree, soft stamen axle (31) injects varied angle bend pipe (25) upper end, and its bared end is fixed on the bicycle shed cloth pole (32).

8,, it is characterized in that said steamboat is made of butt tube (11A), hollow axle bumper (11), steel ball (11B), axle bowl (12A), steamboat (12) according to the described folded climbing pushcar of claim 1.Axle bowl (12A) is fixed in the axis hole of steamboat (12), two hollow axle bumpers (11) insert from the two ends of axle bowl (12A), connect by butt tube (11A), steel ball (11B) is arranged between axle bowl (12A) and the hollow axle bumper (11), and steel wire (14A), (14B) and steel wire (14C), (14D) are connected with the outer of two hollow axle bumpers (11) respectively.

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