CN102815356B

CN102815356B - Trolley

Info

Publication number: CN102815356B
Application number: CN201210335951.5A
Authority: CN
Inventors: 阿莱斯·丹尼斯·尚·丹尼尔
Original assignee: ALAIZ DENIS CHAN DANIEL
Current assignee: ALAIZ DENIS CHAN DANIEL
Priority date: 2012-09-12
Filing date: 2012-09-12
Publication date: 2014-11-05
Anticipated expiration: 2032-09-12
Also published as: CN102815356A

Abstract

The invention relates to a trolley for entertainment. The trolley comprises a seat frame, a headstock and a connecting piece, wherein the back end of the connecting piece is connected with the seat frame; the front end of the connecting piece is hinged with the headstock; left and right sides of the headstock are respectively provided with pedal parts; the lower end of the headstock is provided with M front pulley assemblies; the lower end of the seat frame is provided with N rear pulley assemblies, wherein the sum of M and N is more than or equal to 3; each front pulley assembly comprises a front pulley and a front pulley bracket; the front pulley bracket is connected with the front pulley; the front pulley bracket is connected with the headstock; each rear pulley assembly comprises a rear pulley and a rear pulley bracket; the rear pulley bracket is fixedly connected with the rear pulley; the rear pulley bracket is connected with the seat frame; the front pulley bracket or/and the rear pulley bracket is/are obliquely arranged; and when N is more than 1, the lower end of the seat frame is provided with a tail swinging device. The trolley is driven by a sitting posture so that the trolley is very comfortable to use; and meanwhile, the tail swinging device is arranged between the seat frame and the rear pulley assemblies, so that the deflection angle of the rear pulleys is reduced, and the trolley is good for steering and keeping the trolley balance.

Description

A kind of dolly

Technical field

The invention belongs to car technical field, specifically, relate to a kind of dolly for amusement.

Background technology

At present carriage for children is main mainly with child's tricycle greatly, when child's tricycle is used, needs children to step on front running board, uses difficultlyer, easily causes children tired; And children's mode that all employing is ridden in use, thigh and vehicle seat are constantly rubbed, vehicle seat pushes lower body, and health is damaged.In addition, child's tricycle adopts the form that two wheels are set mostly below, and the support of two wheels next is to be fixed on vehicle body, can not rotate relative to vehicle body, therefore trailing wheel place plane is parallel with the extending direction of vehicle body all the time, child's tricycle unusual inconvenience when turning like this, turns dumb.

Summary of the invention

The object of the invention is to solve the deficiencies in the prior art, a kind of dolly is provided, this dolly changes the mode of riding, and is seated and just can drives, easy to use, turn flexibly, and is conducive to healthy.

For achieving the above object, the technical solution used in the present invention is:

A kind of dolly, comprise mounting, headstock, attaching parts, the rear end of described attaching parts is connected with mounting, front end and the headstock of attaching parts are hinged, headstock is attaching parts left-right rotation relatively, the left and right sides of headstock is respectively equipped with pedal position, the lower end of headstock is provided with M front wheel assembly, the lower end of described mounting is provided with N back pulley assembly, M+N >=3 wherein, described front wheel assembly comprises front wheel and front wheel support, the lower end of front wheel support is connected with the rotating shaft of front wheel, the upper end of front wheel support is connected with the lower end of headstock, described back pulley assembly comprises back pulley and back pulley support, the lower end of back pulley support is fixedly connected with the rotating shaft of back pulley, the upper end of back pulley support is connected with the lower end of mounting, front wheel support is or/and the setting of back pulley riding, when N>1, the lower end of described mounting is provided with the device of wagging the tail that auxiliary back pulley is turned.

As preferably, described in the device of wagging the tail be the Flexible Connector with the ability of resiling, Flexible Connector one end is connected with mounting, the other end is connected with back pulley support.

As preferably, the described device of wagging the tail comprises dead axle, reset sleeve and elastic component, dead axle is connected with the lower end of mounting, reset sleeve is placed on dead axle side outer and reset sleeve and is fixedly connected with back pulley support, described elastic component is arranged in reset sleeve, one end of elastic component is connected with reset sleeve, and the other end of elastic component is connected with dead axle or mounting.

As preferably, the lower end of described mounting is provided with U-shaped plate, and the two ends of described dead axle are connected with the two ends of U-shaped plate respectively, and dead axle is arranged with bearing outward, and reset sleeve is positioned at the middle part of U-shaped plate, and reset sleeve and bearing socket.

As preferably,: described elastic component is torsion spring, an end of reset sleeve is provided with breach in the side near U-shaped plate, the middle part of breach is provided with projection, torsion spring is arranged in this end of reset sleeve, and the both ends of torsion spring stretch out outside reset sleeve by breach, and the two-end part of torsion spring is in the both sides of projection, described U-shaped plate is provided with the locating piece coordinating with projection, and locating piece is between the both ends of torsion spring.

As preferably, the described device of wagging the tail also comprises end cap and fixed block, the middle part of described end cap has the through hole matching with dead axle, end cap is arranged at a side of reset sleeve and is positioned at U-shaped plate, and the medial surface of end cap is provided with spacing block set, and described elastic component is torsion spring, torsion spring is positioned at end cap, and the two ends of torsion spring lay respectively at the both sides of spacing block set, the end face of described reset sleeve and end cap contact is connected with one end of fixed block, and the other end of fixed block stretches into end cap and between the two ends of torsion spring; Side plate and the end cap of described U-shaped plate are equipped with locking hole, are provided with latch in locking hole.

As preferably, the lower end of described mounting is installed with U-shaped plate, the described device of wagging the tail comprises reset sleeve, dead axle, retracing spring, regulating ring, lower collar, ball and the upper collar being fixedly connected with back pulley support, the middle part of described regulating ring is provided with the axis hole matching with dead axle, and the bottom of described reset sleeve is provided with negative thread, the middle part of the upper surface of the described upper collar extends upward a coaxial upper bush, the upper end of upper bush is provided with connecting portion, the described upper collar, lower collar, retracing spring, regulating ring is placed in reset sleeve successively from top to bottom, described regulating ring is threaded with reset sleeve, the two ends of retracing spring offset with lower collar and regulating ring respectively, the upper surface of described lower collar is at least provided with a top-surface camber groove or/and the lower surface of the upper collar is at least provided with a lower surface camber groove, described top-surface camber groove and lower surface camber groove are the little curved surface groove of the large both sides of the intermediate depth degree of depth, described ball is positioned at curved surface groove, the side of described reset sleeve has through hole, and the side of described lower collar has the breach that through hole communicates, described in the device of wagging the tail also comprise pipe link and connecting element, insert in breach through described through hole one end of pipe link, the epipleural of described U-shaped plate is provided with connecting bore, the connecting portion of the upper sleeve pipe of the described upper collar insert described connecting bore and with connecting bore socket, the upper end of described dead axle is successively through the connecting portion of lower side panel, regulating ring, lower collar, the upper collar and the upper sleeve pipe of U-shaped plate and be fixedly connected with connecting element.

As preferably, described attaching parts comprises at least two sections of connectors, and one that is positioned at forefront is leading portion connector, and one that is positioned at rear is back segment connector, and front end and the headstock of leading portion connector are hinged, and the rear end of back segment connector is fixedly connected with mounting; Described two sections of adjacent connector sockets, and connector peripheral hardware is useful on fixing connecting element.

Distortion as above-mentioned attaching parts, attaching parts can design like this: described attaching parts comprises at least two sections of connectors and connecting element, front end and the headstock of one section of connector that is positioned at forefront is hinged, and the rear end of this connector is provided with connector bushing or loop bar, the two ends of other connectors are respectively equipped with connector bushing and loop bar, described connector bushing is equipped with the mounting hole for being connected and cooperatively interacting with loop bar, and two sections of adjacent connectors are socketed and pass mounting hole by connecting element and are fixedly connected with; The rear end of final stage attaching parts is fixedly connected with mounting.

As preferably, described headstock comprises foot-driven lever and the strut bar that left and right directions arranges, and the upper end of strut bar is fixedly connected with the middle part of foot-driven lever, and the lower end of strut bar is fixedly connected with front wheel support, and the middle part of strut bar and the front end of attaching parts are hinged; The middle part of described strut bar is horizontal segment, and the upper surface at middle part is provided with vertical adapter shaft, and the front end of described attaching parts is provided with the sleeve of vertical setting, and sleeve and adapter shaft are hinged.

As preferably, described dolly also comprises brake gear, brake gear is disc brake, disc brake is arranged on one of them back pulley assembly, the handgrip of stopping of disc brake is arranged at mounting, the both sides of described mounting are respectively equipped with handrail, described in the handgrip of stopping be arranged at one of them handrail below, the V-shaped setting of handgrip and handrail of stopping.

When the lower end of mounting is provided with the Flexible Connector with the ability of resiling, Flexible Connector one end is connected with mounting, and the other end is connected with back pulley support.Flexible Connector, when being connected with mounting, back pulley support, can adopt welding, or connects by other connecting elements are auxiliary, as bolt etc.Flexible Connector is after following back pulley deflection distortion, and Flexible Connector drives back pulley to recover to the extending direction that is parallel to attaching parts, thereby can reduce the deflection angle of back pulley.

Further, the lower end of described headstock is provided with a front wheel assembly, and the lower end of mounting is provided with two back pulley assemblies.

The beneficial effect that the present invention obtains is: the present invention adopts sitting posture to drive dolly, uses as snug as a bug in a rug; The device of wagging the tail is set simultaneously between mounting and back pulley assembly, back pulley deflection angle is reduced, be conducive to car and turn, keep car balance.And the present invention steps on by pin left and right, just can drive dolly to move ahead, and has reduced use difficulty, has improved safety.

Accompanying drawing explanation

Fig. 1 is a kind of structural representation of the present invention.

Fig. 2 is the second structural representation of the present invention.

Fig. 3 is the schematic diagram of state of kinematic motion of the present invention.

Fig. 4 is the decomposing schematic representation of a kind of attaching parts of the present invention.

Fig. 5 is the decomposing schematic representation of alternative attachment of the present invention.

Fig. 6 is the decomposing schematic representation of wag the tail device and U-shaped plate of the present invention.

Fig. 7 is the sleeve inner structural representation of the device of wagging the tail of the present invention.

Fig. 8 is the decomposing schematic representation of another wag the tail device and U-shaped plate of the present invention.

Fig. 9 is the structural representation that the device of wagging the tail of Fig. 8 is removed sleeve, end cap.

Figure 10 is the structural representation that the device of wagging the tail of Fig. 8 is removed sleeve.

Figure 11 is the decomposing schematic representation of the third wag the tail device and U-shaped plate of the present invention.

Figure 12 be Figure 11 the device of wagging the tail remove the structural representation of sleeve.

Figure 13 is the structural representation of the upper collar 71 of the third device of wagging the tail of the present invention.

Figure 14 is the structural representation of the lower collar of the third device of wagging the tail of the present invention.

Figure 15 is the birds-eye view of the third device of wagging the tail of the present invention.

Figure 16 is that the A-A of Figure 15 is to cutaway view.

Figure 17 is that the B-B of Figure 15 is to cutaway view.

Reference numeral is:

1---headstock 11---foot-driven lever 12---strut bar

111---pedal position 13---adapter shaft 21---sleeves

2---attaching parts 3---front wheel assembly 31---front wheel supports

32---front wheel 4---mounting 41---handrails

5---back pulley assembly 51---back pulley support 52---back pulleys

7---the handgrip 22 of stopping---connector 23---loop bars

24---sleeve pipe 25---connecting element 6---devices of wagging the tail

61---reset sleeve 62---bearing 63---packing rings

64---reset sleeve 65---nut 66---torsion springs

67---dead axle 611---projection 8---U-shaped plates

81---locating piece 68---fixed block 69---end caps

9---latch 691---spacing block set 692---locking holes

71---the upper sleeve pipes of the upper collar 711---connecting portion 712---

72---lower collar 721---top-surface camber groove 722---breach

73---retracing spring 74---regulating ring 75---screws

82---connecting bore 713---lower surface camber groove 612---through holes.

The specific embodiment

Below in conjunction with accompanying drawing 1, to Figure 17, and the specific embodiment is described further the present invention.

Embodiment: a kind of dolly, comprise mounting 4, headstock 1, attaching parts 2, the rear end of described attaching parts 2 is connected with mounting 4, the front end of attaching parts 2 and headstock 1 are hinged, headstock 1 is attaching parts 2 left-right rotation relatively, the left and right sides of headstock 1 is respectively equipped with pedal position 111, the lower end of headstock 1 is provided with M front wheel assembly 3, the lower end of described mounting 4 is provided with N back pulley assembly 5, M+N >=3 wherein, M, N is positive integer, described front wheel assembly 3 comprises front wheel 32 and front wheel support 31, the lower end of front wheel support 31 is connected with the rotating shaft of front wheel 32, the upper end of front wheel support 31 is connected with the lower end of headstock 1, described back pulley assembly 5 comprises back pulley 52 and back pulley support 51, the lower end of back pulley support 51 is fixedly connected with the rotating shaft of back pulley 52, the upper end of back pulley support 51 is connected with the lower end of mounting 4, front wheel support 31 or/and back pulley support 51 be obliquely installed, when N>1, the lower end of described mounting 4 is provided with the device of wagging the tail that auxiliary back pulley 52 is turned.Here be obliquely installed and refer to the lower end of front wheel support 31, the lower end of back pulley support 51 is connected with front wheel 32, back pulley 52 respectively, the upper end of front wheel support 31, back pulley support 51 is connected with headstock 1, mounting 4 respectively accordingly, and the extending direction of front wheel support 31, back pulley support 51 and horizontal surface keep certain angle, angle, between 0 ~ 90 degree, does not comprise endpoint value.

The present invention in use, people is sitting on mounting 4, people's two legs are stepped on respectively on two pedal positions 111 of headstock 1, bipod left and right scrunches headstock 1 is swung, human body coordinates twisting simultaneously, make front wheel 32 deflection relative to back pulley 52, be that front wheel 32 place planes and back pulley 52 place planes are not parallel, as to take the length direction of dolly be benchmark, when foot-operated headstock 1 makes headstock 1 and front wheel 32 deflection left, back pulley 52 deflection to the right or while remaining unchanged, due to front wheel support 31 at least, one in back pulley support 51 for being obliquely installed, suppose that front wheel support 31 is for being obliquely installed, now the front wheel support 31 of dolly in swing, be subject to left front to power, headstock 1 is to left front to movement, because attaching parts 2 and headstock 1 are hinged, attaching parts 2 will drive mounting 4 and back pulley 52 front mobile gradually left, until back pulley 52 is parallel with front wheel 32, if by the foot-operated angle keeping between headstock 1 and attaching parts 2, and the speed of dolly keeps certain speed, and dolly circles, when back pulley 52 place planes and front wheel 32 place plane parallel or will be parallel time, by foot-operated headstock 1, change the deflecting direction of headstock 1, the all deflection to the right of headstock 1 and front wheel 32, front wheel 32 is mobile to the right, and attaching parts 2, mounting 4 and back pulley 52 turn to gradually and be front mobile to the right, when back pulley 52 place planes and front wheel 32 place plane parallel or will be parallel time, then change the deflecting direction of headstock 1, so repeatedly, dolly moves forward in the mode of S curve.In like manner, when the back pulley support 51 of dolly is for being obliquely installed, at front wheel 32 during with back pulley 52 relative deflection, when people rocks, back pulley support 51 is subject to the thrust of terrain slope, promote relative headstock 1 side direction of mounting 4 and advance, front wheel 32 is reduced until parallel with deflection angle between back pulley 52, can be so that dolly curve moves ahead thereby swing by headstock 1.

In technical scheme of the present invention: if the back pulley of dolly 52 only has one, dolly is very nimble when turning, and as shown in Figure 1, now back pulley 52 can not installed the device of wagging the tail, and the device of wagging the tail can certainly be installed.But now also back pulley component Design can be become to the structure of cardan wheel, back pulley support 51 is hinged with mounting 4, back pulley support 51 can rotate around its extending direction.

When the back pulley 52 of dolly is more than two, the design device of wagging the tail, makes back pulley 52 when turning, the direction of each back pulley 52 deflection is different, each back pulley 52 is according to actual conditions deflection, and the wheel shaft of the back pulley 52 in deflection can disalignment, is conducive to mounting 4 and turns to and wag the tail; Therefore back pulley 52 when turning because each steering angle is different, can according to the turning of mounting 4 need to adjust its deflection angle of self separately, compare the dolly of current coaxial back pulley 52, use also very convenient, easily turn, as shown in Figure 2 and Figure 3.

The present invention, when implementing, is generally set to front wheel support 31, and is convenient to the startup of dolly; Back pulley support 51 according to circumstances arranges, stronger if steerman is controlled dolly ability, back pulley support 51 also can be set to; The speed of advance of dolly is very fast like this; If steerman control dolly ability a little less than, back pulley support 51 is vertically arranged, the speed of advance of dolly is slower, as shown in Figure 1; Also back pulley support 51 can be horizontally disposed with.When current pulley bracket 31 is set to, back pulley support 51 can level be connected with the device of wagging the tail, and that also can tilt is connected with the device of wagging the tail, and back pulley support 51 is the level of state or heeling condition.

The upper end of front wheel support 31, when being connected with headstock 1, can adopting and be fixedly connected with; Also can adopt flexible connection, front wheel support 31 can be rotated around its prolonging direction.During due to flexible connection, headstock 1 is difficult to control, and the present invention adopts and is fixedly connected with.

Further, described in the device of wagging the tail be the Flexible Connector with the ability of resiling, Flexible Connector one end is connected with mounting 4, the other end is connected with back pulley support 51.

The device of wagging the tail is set to have the Flexible Connector of the ability of resiling.Flexible Connector is being followed back pulley 52 deflection distortions, and the centnifugal force that when this deflection is turned with mounting 4, this back pulley assembly is subject to is relevant, therefore each back pulley 52 deflection angle is different, be conducive to wagging the tail of mounting 4, make as early as possible the extending direction of attaching parts 2 consistent with front wheel 32 place directions.Meanwhile, Flexible Connector also drives back pulley 52 to recover to the extending direction that is parallel to attaching parts 2, thereby can reduce the deflection angle of back pulley 52.Can reduce the deflection angle sum between front wheel 32 and back pulley 52, and then increase the radius of curvature turning round, contribute to safety turning.Wherein, Flexible Connector can be the rod member of spring steel making.The connection mode of Flexible Connector and mounting 4 or back pulley support 51 can be welding, also can be fixedly connected with as bolt by other connecting elements.

Further, the described device 6 of wagging the tail comprises dead axle 67, reset sleeve 61 and elastic component, dead axle 67 is connected with the lower end of mounting 4, reset sleeve 61 is placed on dead axle 67 side outer and reset sleeve 61 and is fixedly connected with back pulley support 51, described elastic component is arranged in reset sleeve 61, one end of elastic component is connected with reset sleeve 61, and the other end of elastic component is connected with dead axle 67 or mounting 4.

This is set and wags the tail after device 6, the device 6 of wagging the tail promotes back pulley 52 always and rotates to the extending direction that is parallel to attaching parts 2; Dolly is when turning, and the deflecting direction of front wheel 32 and back pulley 52 is different, and when between front wheel 32 place planes and back pulley 52 place planes, angle is larger, the radius of curvature that dolly is turned is less, easily causes roll-over accident; Setting is wagged the tail after device 6, and the device 6 of wagging the tail promotes back pulley 52 always and rotates to the extending direction that is parallel to attaching parts 2, keeps back pulley 52 to move ahead along the extending direction of attaching parts 2 as far as possible; The device 6 of wagging the tail is adjusted the deflection angle of back pulley 52 when dolly is turned always, reduce as far as possible front wheel 32 place planes and back pulley 52 place flat squares between angle, the radius of curvature of increase turning.Take dolly right-hand rotation as example: the extending direction of the headstock 1 relative attaching parts 2 of dolly keeps right avertence to turn, and front wheel 32 also keeps right avertence to turn, and dolly bends to right; The now extending direction deflection left of back pulley 52 relative attaching partss 2, the deflection angle sum of front wheel 32 and back pulley 52 is the angle between front wheel 32 place planes and back pulley 52 place planes, the device 6 of wagging the tail is adjusted the deflection angle of back pulley 52 in this process always, the deflection angle of back pulley 52 is diminished (referring to Fig. 3).

Further, the lower end of described mounting 4 is provided with U-shaped plate 8, and the two ends of described dead axle 67 are connected with the two ends of U-shaped plate 8 respectively, and is arranged with bearing 62 outside dead axle 67, and reset sleeve 61 is positioned at the middle part of U-shaped plate 8, and reset sleeve 61 and bearing 62 sockets.

By bearing 62 is set, reset sleeve 61 can be rotated around dead axle 67 flexibly, thereby back pulley 52 is rotated flexibly.

As shown in Figure 6, Figure 7, when the device 6 of wagging the tail is that U-shaped plate 8 coordinates, elastic component adopts torsion spring 66, an end of reset sleeve 61 is provided with breach 722 in the side near U-shaped plate 8, the middle part of breach 722 is provided with projection 611, torsion spring 66 is arranged in this end of reset sleeve 61, reset sleeve 61 is stretched out by breach 722 in the both ends of torsion spring 66, and the two-end part of torsion spring 66 is in the both sides of projection 611, described U-shaped plate 8 is provided with the locating piece 81 coordinating with projection 611, and locating piece 81 is between the both ends of torsion spring 66.Reset sleeve 61 is when U-shaped plate 8 rotates like this, by projection 611, drives one of them end of torsion springs 66 to rotate, and another end of torsion spring 66 piece 81 that is positioned is spacing, thereby the device 6 that makes to wag the tail has reset capability.

For allow wag the tail device 6 be convenient to assembling, the device 6 of wagging the tail is provided with two bearings, and is also provided with two reset sleeve 64, nut 65 and packing ring 63.As shown in Figure 6, Figure 7, one of them reset sleeve 64 is arranged between two bearings 62, another reset sleeve 64 is sheathed in torsion spring 66, described dead axle 67 is provided with positive stop end, and the other end of dead axle 67 is successively through the through hole of another side plate of the through hole of the side plate of U-shaped plate 8, one of them bearing 62, packing ring 63, one of them reset sleeve 64, another bearing 62, another reset sleeve 64, U-shaped plate 8 and be threaded with nut 65.This assembling mode is simple, easy to assemble.

Further, the described device of wagging the tail also comprises end cap 69 and fixed block 68, the middle part of described end cap 69 has the through hole matching with dead axle 67, end cap 69 is arranged at a side of reset sleeve 61 and is positioned at U-shaped plate 8, the medial surface of end cap 69 is provided with spacing block set 691, described elastic component is torsion spring 66, torsion spring 66 is positioned at end cap 69, and the two ends of torsion spring 66 lay respectively at the both sides of spacing block set 691, the end face of described reset sleeve 61 and end cap 69 contacts is connected with one end of fixed block 68, and the other end of fixed block 68 stretches into end cap 69 and between the two ends of torsion spring 66; The side plate of described U-shaped plate 8 and end cap 69 are equipped with locking hole 692, are provided with latch 9 in locking hole 692.

Technical scheme of the present invention, when implementing, can be fixedly connected with one end of fixed block 68 with reset sleeve 61, as welding; Also can adopt the mode of cooperation, as the end face in reset sleeve 61 is provided with mounting hole, one end of fixed block 68 coordinates or interference fit with this mounting hole.The locking hole 692 of the side plate of U-shaped plate 8 is unthreaded hole, can be convenient to processing, can be also tapped bore; The locking hole 692 of end cap 69 is tapped bore, and latch 9 is that thread rod can be also bolt, and one end of latch 9 is passed the locking hole 692 of U-shaped plate 8 and is fixedly connected with the locking hole 692 of end cap 69.When this wags the tail device work, reset sleeve 61 follows back pulley support to rotate relative to U-shaped plate 8, because end cap 69 is fixedly connected with U-shaped plate 8 by latch 9, therefore reset sleeve 61 is rotated relative to end cap 69, reset sleeve 61 drives fixed block 68 to rotate, one end that fixed block 68 promotes torsion spring 66, and the other end of torsion spring 66 is blocked by the spacing block set 691 of end cap 69, thus the device that makes to wag the tail has reset capability.Assemble for convenience and wag the tail device operation, the device of wagging the tail is also provided with reset sleeve 64, nut 65, packing ring 63; Referring to Fig. 8, Fig. 9, Figure 10; One of them reset sleeve 64 is arranged in end cap 69, torsion spring 66 is placed on reset sleeve 64 outer (referring to accompanying drawing 9), in reset sleeve 61, be arranged with two bearings 62, bearing 62 is distributed in the both sides of reset sleeve 61, is provided with another reset sleeve 64 between two bearings 62.

Further, as shown in Figure 11 to Figure 17, the lower end of described mounting 4 is installed with U-shaped plate 8, the described device of wagging the tail comprises reset sleeve 61, dead axle 67, retracing spring 73, regulating ring 74, lower collar 72, ball 10 and the upper collar 71 being fixedly connected with back pulley support 51, the middle part of described regulating ring 74 is provided with the axis hole matching with dead axle 67, and the bottom of described reset sleeve 61 is provided with negative thread, the middle part of the upper surface of the described upper collar 71 extends upward a coaxial upper bush 712, the upper end of upper bush 712 is provided with connecting portion, the described upper collar 71, lower collar 72, retracing spring 73, regulating ring 74 is placed in reset sleeve 61 successively from top to bottom, described regulating ring 74 is threaded with reset sleeve 61, the two ends of retracing spring 73 offset with lower collar 72 and regulating ring 74 respectively, the upper surface of described lower collar 72 is at least provided with a top-surface camber groove 721 or/and the lower surface of the upper collar 71 is at least provided with a lower surface camber groove 713, described top-surface camber groove 721 and lower surface camber groove 713 are the little curved surface groove of the large both sides of the intermediate depth degree of depth, described ball 10 is positioned at curved surface groove, the side of described reset sleeve 61 has through hole 612, and the side of described lower collar 72 has the breach 722 communicating with through hole 612, described in the device of wagging the tail also comprise pipe link and connecting element, insert in breach 722 through described through hole 612 one end of pipe link, the epipleural of described U-shaped plate is provided with connecting bore 82, the connecting portion 711 of the upper sleeve pipe 712 of the described upper collar 71 insert described connecting bores 82 and with connecting bore 82 sockets, the upper end of described dead axle 67 is successively through the connecting portion 711 of lower side panel, regulating ring 74, lower collar 72, the upper collar 71 and the upper sleeve pipe 712 of U-shaped plate and be fixedly connected with connecting element.In the present embodiment, pipe link is screw 75 or bolt, and through hole 612 is bolt hole; The upper end of dead axle 67 is provided with outside thread, and connecting element is nut 65, and the upper end of dead axle 67 is threaded with nut 65.

When dolly turns round, first back pulley support 51 drives reset sleeve 61 to rotate, because reset sleeve 61 is connected with lower collar 72 by pipe link, therefore reset sleeve 61 drives lower collar 72 to rotate, because the upper collar 71 connects by its connecting portion and U-shaped sleeve-board, the upper collar 71 is relative with U-shaped Board position fixing, the therefore upper collar 71 can not follow lower collar 72 to rotate, in the present embodiment in order to make the upper collar 71 relative with U-shaped Board position fixing, connecting bore 82 designs are to polygonal hole, the lateral surface of connecting portion is designed to the polygon matching with connecting bore 82, as hexagon.When the upper collar 71 and lower collar 72 relatively rotate, owing to being provided with ball 10 between the upper collar 71 and lower collar 72, and the lower surface of the upper collar 71 is provided with lower surface camber groove 713 or/and the upper surface of lower collar 72 is provided with top-surface camber groove 721, ball 10 initial conditions are positioned at the middle part of curved surface groove, now ball 10 will follow lower collar 72 rotation and along curved surface groove to a side shifting, because curved surface groove is the little curved surface groove of the large both sides of the middle part degree of depth degree of depth, ball 10 moves down promotion lower collar 72, and compression reseting spring 73.The utility model is provided with two lower surface camber grooves 713 in the lower surface of the upper collar 71, the upper surface of lower collar 72 is provided with two top-surface camber grooves 721, each lower surface camber groove 713 and a top-surface camber groove 721 coordinate an accommodation space that both sides broad in the middle are little of formation, and each ball 10 is positioned at an accommodation space.Because retracing spring 73 is compressed, retracing spring 73 can promote lower collar 72 upward movements, impel ball 10 to get back to original position, thereby promoting lower collar 72 rotates in the opposite direction, lower collar 72 drives reset sleeve 61 to reset, thereby after being conducive to dolly and turning, back pulley support 51 can Rapid reset, its deflection angle reduces fast, adjusts back pulley support 51 directions.Wherein, the position of regulating ring 74 in reset sleeve 61 is adjustable, and the Flexible Reset power of retracing spring 73 can be regulated, and then the dynamics that regulates the device of wagging the tail to wag the tail, and regulates the needed dynamics of back pulley support 51 deflection.As when regulating ring 74 moves up, retracing spring 73 is compressed, reset sleeve 61 is rotated needed power relative to U-shaped plate and is become large, thereby the needed power of back pulley support 51 deflection is increased, therefore can regulate as required the position of regulating ring 74, when controlling dolly turning ability deficiency, regulating ring 74 can be moved up, dolly advances with less amplitude of fluctuation form, when control dolly turning ability is stronger, regulating ring 74 can be moved down, dolly advances with larger amplitude of fluctuation form.

For improving the stability of the device of wagging the tail, between bearing 62 and the epipleural of U-shaped change plate, be provided with packing ring, a bearing 62 is at least set in reset sleeve 61, as the upper end in reset sleeve 61 arranges a bearing 62, and this bearing 62 is placed on outside the upper sleeve pipe 712 of the collar 71, reset sleeve 61 is rotated more flexible; Can also be arranged with in the bottom of reset sleeve 61 another bearing 62, and described another bearing 62 is positioned at the below of regulating ring 74, between reset sleeve 61 and the lower side panel of U-shaped plate, be provided with another packing ring, in the lower end of lower collar 72, extend lower sleeve 723 simultaneously, lower sleeve 723 is placed on the upper end of retracing spring 73, be convenient to retracing spring 73 directed movements, as shown in Figure 16, Figure 17.

Further, described attaching parts 2 comprises at least two sections of connectors 22, one that is positioned at forefront is leading portion connector 22, one that is positioned at rear is back segment connector 22, the front end of leading portion connector 22 and headstock 1 are hinged, the rear end of back segment connector 22 is fixedly connected with mounting 4, between two sections of adjacent connectors 22, is flexibly connected.

Further, described two sections of adjacent connectors, 22 sockets, and connector 22 peripheral hardwares are useful on fixing connecting element 25.

The length that fetches adjusting connector 2 by adjacent two sections of connectors, 22 covers, after socket, can adopt connecting element 25 for the form of clip, and two sections of connectors 22 are fixing; Also can adopt on the connector 22 that is positioned at outside and open tapped bore, by bolt, screw the mode that compresses the connector 22 being positioned at and fix.

Shown in 5, the technical solution used in the present invention is for adopting two sections of connectors 22, one of them connector 22 is provided with the loop bar 23 for being socketed, loop bar 23 is evenly provided with a plurality of tapped bore along its length, another connector 22 is provided with the connector bushing 24 for being socketed, connector bushing 24 is provided with tapped bore, and loop bar 23 is inserted in connector bushing 24 and is bolted; The distance that loop bar 23 is inserted in sleeve pipe 24 can be adjusted.Connector 22 is when being connected with mounting 4, and on mounting 4, fixed sleeving 24, and loop bar 23 is set on connector 22, by bolt, connector 22 is connected and fixed and is connected with mounting 4.Facilitate connector 22 and mounting 4 dismountings, installation.

A kind of equivalent variations as attaching parts 2, described attaching parts 2 comprises at least two sections of connectors 22 and connecting element 25, front end and the headstock 1 of one section of connector 22 that is positioned at forefront is hinged, and the rear end of this connector 22 is provided with connector bushing 24 or loop bar 23, the two ends of other connectors 22 are respectively equipped with connector bushing 24 and loop bar 23, described connector bushing 24 is equipped with the mounting hole for being connected and cooperatively interacting with loop bar 23, and adjacent two sections of connectors 22 are socketed and are fixedly connected with through mounting hole by connecting element 25; The rear end of final stage attaching parts 2 is fixedly connected with mounting 4.

By the connector 22 of different length and the connector 22 of different hop counts are set, adjust the length of dolly to be applicable to the people of different heights.Adjacent connector 22, when connecting, except socket, is also fixedly connected with adjacent connector 22 through corresponding mounting hole by connecting element 25, and connecting element 25 can be pin, can be also bolt; As shown in Figure 4.When the rear end of final stage connector 22 is connector bushing 24, can on mounting 4, fix a loop bar 23, by being fixedly connected with of connector bushing 24 and loop bar 23, connector 22 is fixedly connected with mounting 4.When the rear end of final stage connector 22 is loop bar 23, can on mounting 4, fix a connector bushing 24, by being fixedly connected with of connector bushing 24 and loop bar 23, connector 22 is fixedly connected with mounting 4.

Further, described headstock 1 comprises foot-driven lever 11 and the strut bar 12 that left and right directions arranges, the upper end of strut bar 12 is fixedly connected with the middle part of foot-driven lever 11, and the lower end of strut bar 12 is fixedly connected with front wheel support 31, and the front end of the middle part of strut bar 12 and attaching parts 2 is hinged.As shown in Figure 3.

Further, the middle part of described strut bar 12 is horizontal segment, and the upper surface at middle part is provided with vertical adapter shaft 13, and the front end of described attaching parts 2 is provided with the sleeve 21 of vertical setting, and sleeve 21 is hinged with adapter shaft 13.

When implementing, can on adapter shaft 13, be socketed bearing 62, sleeve 21 and bearing 62 sockets; Make attaching parts 2 and the hinged rear rotation of headstock 1 more flexible; As distortion, sleeve 21 can be socketed in to vertical section of strut bar 12, as the connection mode of the tap of existing bicycle and vehicle body; But the sleeve 21 of the present embodiment is more prone to when implementing with the connection mode of adapter shaft 13, convenience.

Further, described dolly also comprises brake gear, and brake gear is disc brake, and disc brake is arranged on one of them back pulley assembly 5, and the handgrip 7 of stopping of disc brake is arranged at mounting 4.

When dolly excessive velocities, while maybe needing dolly to stop, can slow down or stop by pinching the handgrip 7 of stopping.

As equivalent variations, brake gear also can be stopped for V.

Further, the both sides of described mounting 4 are respectively equipped with handrail 41, described in the handgrip 7 of stopping be arranged at one of them handrail 41 below, stop handgrip 7 and the V-shaped setting of handrail 41, as shown in Figure 2.

Handrail 41 is set, can be conducive to human body to be stabilized on mounting 4, as while turning round; Meanwhile, conveniently pinch the handgrip 7 of stopping.

Further, the lower end of described headstock 1 is provided with a front wheel assembly 3, and the lower end of mounting 4 is provided with two back pulley assemblies 5.

The vehicle structure of three pulleys is stable and cost is minimum, because the holding capacity of mounting 4 is larger, so the lower end of mounting 4 is arranged to two back pulley assemblies 5.

Below be only the application's preferred embodiment, equivalent technical solutions on this basis still falls into application protection domain.

Claims

1. a dolly, it is characterized in that: comprise mounting, headstock, attaching parts, the rear end of described attaching parts is connected with mounting, front end and the headstock of attaching parts are hinged, headstock is attaching parts left-right rotation relatively, the left and right sides of headstock is respectively equipped with pedal position, the lower end of headstock is provided with M front wheel assembly, the lower end of described mounting is provided with N back pulley assembly, M+N >=3 wherein, described front wheel assembly comprises front wheel and front wheel support, the lower end of front wheel support is connected with the rotating shaft of front wheel, the upper end of front wheel support is connected with the lower end of headstock, described back pulley assembly comprises back pulley and back pulley support, the lower end of back pulley support is fixedly connected with the rotating shaft of back pulley, the upper end of back pulley support is connected with the lower end of mounting, front wheel support is or/and the setting of back pulley riding, when N>1, the lower end of described mounting is provided with the device of wagging the tail that auxiliary back pulley is turned,

The described device of wagging the tail comprises dead axle, reset sleeve and elastic component, dead axle is connected with the lower end of mounting, reset sleeve is placed on dead axle side outer and reset sleeve and is fixedly connected with back pulley support, described elastic component is arranged in reset sleeve, one end of elastic component is connected with reset sleeve, and the other end of elastic component is connected with dead axle or mounting;

The lower end of described mounting is provided with U-shaped plate, and the two ends of described dead axle are connected with the two ends of U-shaped plate respectively, and dead axle is arranged with bearing outward, and reset sleeve is positioned at the middle part of U-shaped plate, and reset sleeve and bearing socket;

Described elastic component is torsion spring, an end of reset sleeve is provided with breach in the side near U-shaped plate, the middle part of breach is provided with projection, torsion spring is arranged in this end of reset sleeve, and stretch out outside reset sleeve by breach at the both ends of torsion spring, and the two-end part of torsion spring is in the both sides of projection, and described U-shaped plate is provided with the locating piece coordinating with projection, and locating piece is between the both ends of torsion spring; Described dolly also comprises brake gear.

2. a kind of dolly according to claim 1, it is characterized in that: described in the device of wagging the tail also comprise end cap and fixed block, the middle part of described end cap has the through hole matching with dead axle, end cap is arranged at a side of reset sleeve and is positioned at U-shaped plate, the medial surface of end cap is provided with spacing block set, described elastic component is torsion spring, torsion spring is positioned at end cap, and the two ends of torsion spring lay respectively at the both sides of spacing block set, the end face of described reset sleeve and end cap contact is connected with one end of fixed block, and the other end of fixed block stretches into end cap and between the two ends of torsion spring; Side plate and the end cap of described U-shaped plate are equipped with locking hole, are provided with latch in locking hole.

3. a kind of dolly according to claim 1, it is characterized in that: described attaching parts comprises at least two sections of connectors, one that is positioned at forefront is leading portion connector, one that is positioned at rear is back segment connector, front end and the headstock of leading portion connector are hinged, and the rear end of back segment connector is fixedly connected with mounting; Described two sections of adjacent connector sockets, and connector peripheral hardware is useful on fixing connecting element.

4. a kind of dolly according to claim 1, it is characterized in that: described headstock comprises foot-driven lever and the strut bar that left and right directions arranges, the upper end of strut bar is fixedly connected with the middle part of foot-driven lever, the lower end of strut bar is fixedly connected with front wheel support, and the middle part of strut bar and the front end of attaching parts are hinged; The middle part of described strut bar is horizontal segment, and the upper surface at middle part is provided with vertical adapter shaft, and the front end of described attaching parts is provided with the sleeve of vertical setting, and sleeve and adapter shaft are hinged.

5. a kind of dolly according to claim 1, it is characterized in that: brake gear is disc brake, disc brake is arranged on one of them back pulley assembly, the handgrip of stopping of disc brake is arranged at mounting, the both sides of described mounting are respectively equipped with handrail, the described handgrip of stopping is arranged at one of them handrail below, the V-shaped setting of handgrip and handrail of stopping.

6. a dolly, it is characterized in that: comprise mounting, headstock, attaching parts, the rear end of described attaching parts is connected with mounting, front end and the headstock of attaching parts are hinged, headstock is attaching parts left-right rotation relatively, the left and right sides of headstock is respectively equipped with pedal position, the lower end of headstock is provided with M front wheel assembly, the lower end of described mounting is provided with N back pulley assembly, M+N >=3 wherein, described front wheel assembly comprises front wheel and front wheel support, the lower end of front wheel support is connected with the rotating shaft of front wheel, the upper end of front wheel support is connected with the lower end of headstock, described back pulley assembly comprises back pulley and back pulley support, the lower end of back pulley support is fixedly connected with the rotating shaft of back pulley, the upper end of back pulley support is connected with the lower end of mounting, front wheel support is or/and the setting of back pulley riding, when N>1, the lower end of described mounting is provided with the device of wagging the tail that auxiliary back pulley is turned,

The lower end of described mounting is installed with U-shaped plate, the described device of wagging the tail comprises reset sleeve, dead axle, retracing spring, regulating ring, lower collar, ball and the upper collar being fixedly connected with back pulley support, the middle part of described regulating ring is provided with the axis hole matching with dead axle, and the bottom of described reset sleeve is provided with negative thread, the middle part of the upper surface of the described upper collar extends upward a coaxial upper bush, the upper end of upper bush is provided with connecting portion, the described upper collar, lower collar, retracing spring, regulating ring is placed in reset sleeve successively from top to bottom, described regulating ring is threaded with reset sleeve, the two ends of retracing spring offset with lower collar and regulating ring respectively, the upper surface of described lower collar is at least provided with a top-surface camber groove or/and the lower surface of the upper collar is at least provided with a lower surface camber groove, described top-surface camber groove and lower surface camber groove are the little curved surface groove of the large both sides of the intermediate depth degree of depth, described ball is positioned at curved surface groove, the side of described reset sleeve has through hole, and the side of described lower collar has the breach that through hole communicates, described in the device of wagging the tail also comprise pipe link and connecting element, insert in breach through described through hole one end of pipe link, the epipleural of described U-shaped plate is provided with connecting bore, the connecting portion of the upper sleeve pipe of the described upper collar insert described connecting bore and with connecting bore socket, the upper end of described dead axle is successively through the connecting portion of lower side panel, regulating ring, lower collar, the upper collar and the upper sleeve pipe of U-shaped plate and be fixedly connected with connecting element, described dolly also comprises brake gear.

7. a kind of dolly according to claim 6, it is characterized in that: described attaching parts comprises at least two sections of connectors, one that is positioned at forefront is leading portion connector, one that is positioned at rear is back segment connector, front end and the headstock of leading portion connector are hinged, and the rear end of back segment connector is fixedly connected with mounting; Described two sections of adjacent connector sockets, and connector peripheral hardware is useful on fixing connecting element.

8. a kind of dolly according to claim 6, it is characterized in that: described headstock comprises foot-driven lever and the strut bar that left and right directions arranges, the upper end of strut bar is fixedly connected with the middle part of foot-driven lever, the lower end of strut bar is fixedly connected with front wheel support, and the middle part of strut bar and the front end of attaching parts are hinged; The middle part of described strut bar is horizontal segment, and the upper surface at middle part is provided with vertical adapter shaft, and the front end of described attaching parts is provided with the sleeve of vertical setting, and sleeve and adapter shaft are hinged.

9. a kind of dolly according to claim 6, it is characterized in that: brake gear is disc brake, disc brake is arranged on one of them back pulley assembly, the handgrip of stopping of disc brake is arranged at mounting, the both sides of described mounting are respectively equipped with handrail, the described handgrip of stopping is arranged at one of them handrail below, the V-shaped setting of handgrip and handrail of stopping.