CN106428365A - Folding frame and folding tricycle - Google Patents

Abstract

The invention discloses a folding frame and a folding tricycle. The folding frame comprises a driving piece, wherein the driving piece is connected with one end of each of two parallel connection rods distributed in the vertical direction through a pivot; the other ends of the two connection rods are connected with a front wheel steering mechanism through a pivot; the driving piece is further connected with a rear frame; and rising motion and falling motion of the end, which is connected with the driving piece, of the rear frame drive the driving piece to do synchronous motion, so that the driving piece drives the connection rods to roll over relative to the front wheel steering mechanism and drives a seat cushion branch pipe linked with the driving piece to roll over relative to the rear frame. The folding frame is ingenious in design and simple in structure, and drives a plurality of pivotally connected components to be linked with one another by taking the driving piece as a center, so that folding of the overall tricycle is realized; all the components are closely related, and the co-movement property is high; after being folded, the frame is compact in overall structure; a main body structure is mainly distributed in the axial direction and occupies a small transverse space; and furthermore, with the simple and ingenious folding structure, the folding frame needs a small number of folding and unfolding steps, and is easy to operate and convenient to use.

Description

Folding stand and folding tricycle

Technical field

The present invention relates to a kind of vehicle frame and tricycle, especially a kind of folding stand and folding tricycle.

Background technology

With the continuous improvement of people's quality of life, the energy-saving and environmental protection for the vehicles, light, multiformity, complementarity And the demand of aesthetic property is also more and more urgent.

Electric power is widely used in production and lives as the high important energy of a kind of environmental protection, cleaning, conversion ratio, electric motor car As green rising industry, as the relatively low short-distance and medium-distance traffic work of a kind of energy-conserving and environment-protective, convenient, use cost of going on a journey Tool, with larger mass foundation and market prospect.

And tricycle, as the term suggests, the electric motor car including three wheels or bicycle or automobile, as which is with respect to two wheels The many wheels of car contacts with ground, are being easy to produce the wet-skid road surface of sideslip, are had very unique stability advantage, significantly Reduce the personnel that ride to break away the probability fallen down, under complicated landform ground surface environment, driving safety has compared with two wheeler and significantly carries Rise；With the arrival of China human mortality aging, the trip of the elderly and the disabled needs, and therefore storage battery tricycle becomes special energy Adapt to one of best vehicles of the elderly and the disabled.The most structure of current on the market tricycle is two, a front-wheel Trailing wheel, as shown in Chinese patent CN2012100896528 and CN2014800145526.

But existing tricycle volume is big, be unfavorable for placement, therefore also designs a part of foldable three on market Wheel car, the such as Chinese patent application of Application No. 2013800540944 and Application No. 2009101311581, but these can Also there are some obvious defects in folding tricycle,

For example, the folding tricycle in above-mentioned two patent application, after folding, front-wheel is had a certain degree with trailing wheel or front-wheel With trailing wheel, there is difference in height, therefore inconvenience is carried out in a folded configuration, as electro-tricycle general structure is big, therefore Inconvenience is carried.

Meanwhile, such as 2013800540944 patent application, the complicated integral structure of tricycle, after folding, the space of occupancy Still larger, and due to without effective supporting construction, being therefore not easy to put, also have certainly some foldable structures other, Integrated level, fitness between part be not high, causes folding effect undesirable.

Further, since the whole fold mechanism of above-mentioned patent is complex, folds and need to operate multiple parts when launching Could realize, the complex operation for therefore folding, launching, process is many, time and effort consuming, and operability is poor.

Finally, due to the presence of fold mechanism, the multiple parts in fold mechanism often have certain activeness, therefore In the deployed state, it is desirable to have certain fixed structure will not occur unexpected activity to ensure each part, cause security incident.

Content of the invention

The purpose of the present invention is exactly to solve the above-mentioned problems in the prior art, provides a kind of simple structure, behaviour Make easily folding stand and folding tricycle.

The purpose of the present invention is achieved through the following technical solutions：

Folding stand, including actuator, pivotally connected two one end of connecting rod that are parallel and being distributed up and down of the actuator, two The pivotally connected foresteerage gear of the other end of the connecting rod；The actuator is also connected with Rear frame, the Rear frame with described The basculating movement of one end of actuator connection and descending motion drive the actuator to be synchronized with the movement, and then the actuator drives The connecting rod foresteerage gear relatively is overturn and is driven the relative Rear frame of the medicated cushion arm that linked with which Overturn.

Preferably, described folding stand, wherein：One end of the pivotally connected pull bar of the actuator, the pull bar another Provided at one connects the medicated cushion arm, the pivotally connected Rear frame of the medicated cushion arm, and the pull bar and medicated cushion arm Pivot connection point position higher than the medicated cushion arm and the pivot connection point of Rear frame position.

Preferably, described folding stand, wherein：The actuator include the first pivot hole of distribution triangular in shape, Two pivot holes and the 3rd pivot hole, connect one end of upper connecting rod at first pivot hole, under connecting at second pivot hole One end of connecting rod and Rear frame, connect one end of the pull bar at the 3rd pivot hole.

Preferably, described folding stand, wherein：Position-limit mechanism, institute is additionally provided between the upper connecting rod and lower link Stating position-limit mechanism includes the upper clamping block being arranged in upper connecting rod and the lower clamping block being arranged on the lower link,

Under deployed condition, the upper clamping block is spacing with lower clamping block clamping；

Under folded state, the upper clamping block is separated with lower clamping block.

Preferably, described folding stand, wherein：The foresteerage gear includes supporting sleeve, the supporting sleeve Interior the upper end for having steering tube, the steering tube is provided with tap handle, its lower end is provided with front-wheel installing rack； Connector is additionally provided with the supporting sleeve outer wall, the 4th pivot hole being provided with the connector with difference in height and Five pivot holes, the distance of the 4th pivot hole at higher position to the supporting sleeve is less than the 5th pivot hole to institute State the distance of supporting sleeve.

Preferably, described folding stand, wherein：It is provided with the Rear frame for supporting the seat in deployed condition The support bar of advance expenditure pipe.

Preferably, described folding stand, wherein：The both sides of the Rear frame position pivotally connected with the actuator It is symmetrically arranged with lift-pull handle.

Preferably, described folding stand, wherein：The actuator is locked by locking relieving mechanism and is discharged, The locking relieving mechanism includes arranging with the lock on the locking piece of the pivotally connected Rear frame and the actuator The draw-in groove of stop member coupling, the locking piece connection drives drive mechanism and the resetting-mechanism of its upset.

Preferably, described folding stand, wherein：The drive mechanism includes least one set activation button and installation Cover, the activation button can be stretched in the mounting cup and which passes through connecting rod and connects the locking piece；The resetting-mechanism The torsion spring that is disposed at the locking piece and the pivot connection point of Rear frame or one end is fixed in the activation button, separately One end is fixed on the spring on the mounting cup.

Folding tricycle, including any of the above-described folding stand, is provided with front-wheel on the foresteerage gear, described after Be symmetrically arranged with two trailing wheels on vehicle frame, telescopic on the medicated cushion arm be provided with medicated cushion, the folding tricycle is also extremely Include power drive system and brake system less.

The beneficial effects are mainly as follows：

Deft design of the present invention, simple structure, centered on actuator and drive multiple parts pivotally connected with which to link, from And the folding of car load is realized, and the close relation of each part, linkage are strong, after folding, compact overall structure, and agent structure mainly exists Axially it is distributed, occupancy horizontal space is little, further, since foldable structure is simple, ingenious, therefore folds and deployment step is few, operation Simply, it is easy to use.

After folding, three wheels are still in parastate, and front and back wheel does not have difference in height, therefore, it is possible to by lifting Handle realizes the implementation of car load, is easy to carry out the carrying of car load in a folded configuration.

By the structure setting of connector, ensure that folded state lower link is parallel with supporting sleeve, so as to ensure it Between compactedness.

Using the locking relieving mechanism of push button, the release of actuator can be quickly realized, so as to easily realize car load Folding, and when launching, need to only exert a force make front wheels and rear wheels separately i.e. using locking relieving mechanism realize actuator from Dynamic locking, expansion is simple to operate, and the combination type spacing mechanism between linking rod, fixes so as to complete vehicle structure is effectively ensured Stability, improve safety.

Description of the drawings

Fig. 1 is the folding tricycle deployed condition sectional view of the present invention；

Fig. 2 is the folding tricycle deployed condition axonometric chart of the present invention；

Fig. 3 is the folding tricycle folded inside mechanism axonometric chart of the present invention；

Fig. 4 is the enlarged drawing of a-quadrant in Fig. 3；

Fig. 5 is the folding tricycle folded state axonometric chart of the present invention；

Fig. 6 is the folding tricycle folded state sectional view of the present invention.

Specific embodiment

The purpose of the present invention, advantage and feature, by by the non-limitative illustration of preferred embodiment below carry out diagram and Explain.These embodiments are only the prominent examples for applying technical solution of the present invention, all take equivalent or equivalent transformation and The technical scheme of formation, all falls within the scope of protection of present invention.

Present invention is disclosed a kind of folding tricycle, as shown in accompanying drawing 1- accompanying drawing 3, including folding stand and institute is arranged at State the front-wheel 110 of folding stand rear and front end and two trailing wheels 120.

As shown in accompanying drawing 1, accompanying drawing 5, the folding stand includes foresteerage gear 3, and the foresteerage gear 3 includes Supporting sleeve 31, is provided with dragon rotatably arranged with the upper end for having steering tube 32, the steering tube 32 in the supporting sleeve 31 First handss 33, are provided with least one brake and handle 140, before the lower end of the steering tube 32 is provided with the tap handle 33 Wheel installing rack 34, the furcation of the front-wheel installing rack 34 connects the front-wheel 110, the front-wheel installing rack 34 by front axle On be additionally provided with front wheel guard 36.

Certainly in other embodiments, the tap handle 33 can also with can stretch in the supporting sleeve 31 and with The telescoping tube connection that the steering tube is tightened or loosened.

Connector 35 is additionally provided with the outer wall of the supporting sleeve 31, and the connector 35 includes channel-shaped body, described The 4th pivot hole 351 being provided with body with difference in height and the 5th pivot hole 352, the 4th pivot at higher position The distance of the supporting sleeve 31 is arrived in hole 351 to the distance of the supporting sleeve 31 less than the 5th pivot hole 352.

As shown in accompanying drawing 1, accompanying drawing 3, at the 4th pivot hole 351 and the 5th pivot hole 352, difference pivotally connected is drawn One end of bar 2, two pull bars 2（Upper connecting rod 21 and lower link 22）The other end all pivotally connected actuators 1, and institute State upper connecting rod 21 and lower link 22 remains parastate, the one end pivotally connected with the actuator 1 of the upper connecting rod 21 Be additionally provided with the 6th pivot hole, one end of the pivotally connected follower lever 150 of the 6th pivot hole, the follower lever 150 another Provided at one connects fixed fixture 160 in the Rear frame 4, is provided with and draws connection for pivot on the fixture 160 The pivot attachment apertures of the follower lever 150（In figure is not shown）.

Also, as shown in accompanying drawing 1, accompanying drawing 6, between the upper connecting rod 21 and lower link 22, it is additionally provided with position-limit mechanism 7, institute Stating position-limit mechanism 7 includes to be arranged in the upper connecting rod 21 and towards the upper clamping block 71 of the lower link 22 and is arranged at institute The lower clamping block 72 that states on lower link 22 and mate with the upper clamping block 71, the upper clamping block 71 is cuboid or square Square, the lower connecting block 72 is step-like square, and the distance of the upper clamping block 71 to the 4th pivot hole 351 is big In the distance of the lower clamping block 72 to the 5th pivot hole 352,

Under deployed condition, the upper clamping block 71 is spacing with lower 72 clamping of clamping block；

Under folded state, the upper clamping block 71 is separated with lower clamping block 72.

In addition, in the present embodiment, as shown in Figure 1, the actuator 1 is preferably fillet triangular cube body, and which includes one Individual upper plane and positioned at the upper plane both sides and two rounded triangle sides vertical with the upper plane, described in two Rounded triangle side is preferably equilateral or isosceles rounded triangle, and the gap between them is more than 21 He of the upper connecting rod The width of lower link 21, certainly in other embodiments, the actuator 1 can also be other feasible shapes, and here is no longer Repeat.

Be provided with three fillet positions of two rounded triangle sides of the actuator 1 first pivot hole 11, Two pivot holes 12 and the 3rd pivot hole 13, the height of first pivot hole 11 and the 3rd pivot hole 13 is higher than second pivot Hole 12, meanwhile, the distance between first pivot hole 11 and the second rear pivot shaft hole 12 are equal to the 4th pivot hole 351 and the The distance between five pivot holes 352, connect one end of the upper connecting rod 21, second pivot hole at first pivot hole 11 Connect one end of the lower link 22 at 12, so that the upper connecting rod 21 and lower link 22 remain parastate.

Further, as shown in Figure 1, the actuator 1 is also connected with Rear frame 4, the Rear frame 4 and the actuator 1 The basculating movement of one end of connection and descending motion drive the actuator 1 to be synchronized with the movement, so the actuator 1 drive described The foresteerage gear 3 relatively of connecting rod 2 is overturn and is driven the relative Rear frame 4 of the medicated cushion arm 5 that linked with which Overturn.

Specifically, as shown in accompanying drawing 1- accompanying drawing 3, also pivotally connected described at the second pivot hole 12 on the actuator 1 Rear frame 4 is near one end of the front-wheel 110, and the Rear frame 4 includes the grid-like framework 41 of specular, two nets Lattice frames 41 are connected by connecting rod and with the gap for installing the actuator 1 and medicated cushion arm 5 between them 42；Two grid-like frameworks 41 are respectively provided with a trailing wheel 120 and rear catch away from the outside of one end of the actuator 1 Mud plate 45；The one end being connected with actuator 1 from the Rear frame 4 is additionally provided with the Rear frame 4 extending to the medicated cushion props up The U-shaped position-limiting cover 43 at 5 rear of pipe and the battery settling groove 44 positioned at 5 rear of medicated cushion arm.

One end of pivotally connected pull bar 6 at the 3rd pivot hole 13 on the actuator 1, the pull bar 6 another End pivoting connects the medicated cushion arm 5, and the medicated cushion arm 5 is pivotally connected in the Rear frame 4.

Detailed, as shown in accompanying drawing 1, accompanying drawing 6, the medicated cushion arm 5 includes standpipe 51, the first pivot connection 52 and the Two pivot connections 53, in the standpipe 51, a telescopic medicated cushion connecting rod and the medicated cushion connecting rod of being provided with is by lock Tight part is locked with the standpipe 51 and is unclamped, and the top of the medicated cushion connecting rod is provided with medicated cushion 130；Described first is pivotally connected Portion 52 is located at the lower half of the standpipe 51 and is higher than second pivot connection 53, and second pivot connection 53 is located at In 51 bottom sidewall of the standpipe and perpendicular setting, the pivotally connected pull bar 6 in first pivot connection 52 another One end, the pivotally connected Rear frame 4 in the pivot connection 53, the therefore pivot connection point of the pull bar 6 and medicated cushion arm 5 Position higher than the medicated cushion arm 5 and the pivot connection point of Rear frame 4 position, consequently facilitating when folding, pulling the seat The Rear frame 4 relatively of advance expenditure pipe 5 is overturn.

During due to deployed condition, as shown in Figure 1, the standpipe 51 in the medicated cushion arm 5 is with the Rear frame 4 in vertical Straight state, and as medicated cushion arm 5 needs to bear the gravity of driver, therefore it is necessary to ensure there are enough enabling capabilities, and The medicated cushion arm 5 and Rear frame 4 are only had pivotally connected place and are supported by an axle, other regions be all hanging, because This, in order to preferably provide support force to the medicated cushion arm 5, be fixedly provided with support bar 8 at the gap 42, ensure that The stability of strutting system of the medicated cushion arm 5.

Further, as shown in accompanying drawing 3- accompanying drawing 5, the actuator 1 is locked and is released by locking relieving mechanism 10 Put, the locking relieving mechanism 10 includes locking piece 101 and matched draw-in groove 102, and the locking piece 101 includes two tools Have the locking projection 1011 of circular arc end face and its be pivotally connected in the gap 42 of the Rear frame 4, two locking projections There is between 1011 interval, the draw-in groove 102 is arranged on the grab of two rounded triangle sides of the actuator 1, institute State snap fit and there is the curved end for being mated with the circular arc end face of the locking projection 1011, the locking piece 101 is also connected with driving Its drive mechanism 103 that Rear frame 4 is overturn relatively and resetting-mechanism 104.

As shown in Figure 4, the drive mechanism 103 includes least one set activation button 1031 and mounting cup 1032, institute State that activation button 1031 can be stretched in the mounting cup 1032 and which passes through connecting rod 1033 and connects the locking piece 101, institute State drive mechanism 103 to drive the locking piece 101 to overturn and make locking projection 1011 thereon exit from the draw-in groove 102, So as to discharge the actuator 1.

As shown in Figure 1, the resetting-mechanism 104 is disposed on the pivot connection point of the locking piece 101 and Rear frame 4 Torsion spring or one end at 105 is fixed in the activation button 1031, and the other end is fixed on the bullet on the mounting cup 1032 Spring, the resetting-mechanism 104 is used for driving 101 reverse flip of the locking piece to reset.

The both sides of the position pivotally connected with the actuator 1 of the Rear frame 4 are symmetrically arranged with lift-pull handle 9, are easy to Carry out folding and the carrying of vehicle.

When needing to be folded the folding tricycle of invention, its process is as follows：

The activation button 1031 is pressed first, and the connecting rod 1033 being connected with the activation button 1031 promotes the locking piece 101 rotate around its pivot connection point with the Rear frame 4, so that the locking projection 1011 on the locking member 101 is from institute State and exit in draw-in groove 102, now, the actuator 1 is no longer influenced by the restriction of the locking relieving mechanism 10, can activity.

Then, the lift-pull handle 9 is lifted upwards, as the lift-pull handle 9 is fixed with the Rear frame 4, at this moment, with attached As a example by Fig. 1, one end that the Rear frame 4 is connected with the actuator 1 is subject to the pulling force towards upper right, and its other end is subject to certainly The downward gravity of body, therefore, lifting is tilted upwards for one end that the Rear frame 4 is connected with the actuator 1, also, with institute One end constantly lifting tilting upwards that Rear frame 4 is connected is stated with the actuator 1, and the Rear frame 4 is connected with actuator 1 The horizontal range of one end that one end connects trailing wheel 120 to the Rear frame 4 progressively reduces, to reaching minimum when completing and folding.

One end that vehicle frame 4 is connected with the actuator 1 in the rear upwards lifting tilt while, the actuator 1 and One end that lower link 21 is connected with actuator 1 follows the Rear frame 4 to move to direction is tilted, and leaves so as to the actuator 1 The lock position corresponding with the locking piece 101, now, unclamps the activation button 1031, and the locking piece 101 is described Reset under the counteracting force of torsion spring or spring.

As one end that the actuator 1 and lower link 22 are connected with actuator is moved to direction is tilted, so as to drive One end that the upper connecting rod 21 is connected with the actuator 1 is also moved to tilting direction, due to the upper connecting rod 21 and lower link 22 pulling force all by moving to tilting direction（Pulling force towards upper right）, therefore pull the foresteerage gear 3 and front-wheel 110 is overall to the movement of 120 direction of the trailing wheel, progressively reduces so as to the distance between the front-wheel 110 and trailing wheel 120；Meanwhile, 3 pairs of upper connecting rods 21 of the foresteerage gear and lower link 22 produce counteracting force, and the counteracting force passes through upper connecting rod 21 and lower link 22 act on the actuator 1 so that the actuator 1 produces upset counterclockwise, with the upper company The continuous lifting in one end that bar 21 and lower link 22 are connected with actuator 1 to the upper connecting rod 21 and lower link 22 and the support When sleeve pipe 31 is parallel, the upper connecting rod 21 and lower link 22 are locked and cannot be further continued for rotating, and whole folding stand cannot continue Continuous folding, that is, complete to fold.

While the actuator 1 overturns, which applies a drawing towards 110 direction of the front-wheel to the pull bar 6 Power, so that the pull bar 6 pulls the medicated cushion arm 5, so that the medicated cushion arm 5 is around its pivot with the Rear frame 4 Junction point 105 is rotated counterclockwise, and is progressively pressed close to the Rear frame.

When final folding is completed, as shown in accompanying drawing 5, accompanying drawing 6, three planes that the front-wheel 110 and trailing wheel 120 are located are still Right keeping parallelism, the plane formed by their minimum point is with horizontal plane keeping parallelism and the front-wheel 110 and 120 part of trailing wheel Overlap；Meanwhile, the main part of parallel with the supporting sleeve 31 and described lower link 22 of the connecting rod 2 is present with the Rear frame 4 Partially overlap, the Rear frame 4 is parallel with the standpipe 51 in medicated cushion arm 5 or forms wedge configuration, the standpipe 51 and pull bar 6 Parallel and described standpipe 51 is located in the notch of the U-shaped position-limiting cover 43；In addition, connecting rod 2, supporting sleeve 31, Rear frame 4, seat Standpipe 51, pull bar 6 in advance expenditure pipe 5 etc. are all vertically extending, and they are respectively positioned on the front-wheel 110 and trailing wheel 120 covered In horizontal space.

When needing the folding tricycle by the present invention to be launched, exert a force to the front-wheel 110 and/or trailing wheel 120, make The trailing wheel 120 is separated with front-wheel 110, and now, one end that the connecting rod 2 and Rear frame 4 are connected with the actuator 1 is all downward Mobile, so that connecting rod 2 and Rear frame 4 are recovered from the state of tilting to lying status, and then drive actuator 1 to move down, when When the actuator 1 is moved down, the curved end of the snap fit on the actuator 1 can be with the locking projection of the locking piece 1 1011 circular arc end contact, and the locking piece 1 can be promoted to rotate clockwise, when the actuator 1 reaches lock position, The locking piece 101 is rotated counterclockwise and is made in the draw-in groove 102 that locking projection 1011 thereon is snapped onto on the actuator 1； Meanwhile, the upper clamping block 71 and lower clamping block 72 are progressively from separating in the deformation process of the upper connecting rod 21 and lower link 22 State is changed into clamped condition, limits the upper connecting rod 21 and lower link 22 is rotated further, so as to realize folding using overall structure The locking of folded vehicle frame.

When the folding tricycle is bicycle, the drive that the part such as which also includes to ride, swing arm, gear, chain is constituted Dynamic structure, is prior art herein, therefore, repeats no more.

Further, when the folding tricycle is electric motor car, which also includes power drive system, the power drive system bag Include

Battery（In figure is not shown）, for powering for whole power drive system, it is arranged in the Rear frame 4 and is located at the seat 5 rear of advance expenditure pipe,

Speed regulating handle, for adjusting speed, is arranged in the tap handle 33；

Motor（In figure is not shown）, for driving the front-wheel or trailing wheel, which can be integrated on the front-wheel 110, it is also possible to It is connected with trailing wheel 120 by drive mechanism；

And control circuit（In figure is not shown）, for controlling whole power drive system to run.

The present invention still has numerous embodiments, all employing equivalents or equivalent transformation and all technical sides for being formed Case, is within the scope of the present invention.

Claims (10)

1. folding stand, it is characterised in that：Including actuator（1）, the actuator（1）Pivotally connected two parallel and divide up and down The connecting rod of cloth（2）One end, two connecting rods（2）The pivotally connected foresteerage gear of the other end（3）；The actuator （1）It is also connected with Rear frame（4）, the Rear frame（4）With the actuator（1）The basculating movement of one end of connection and descending motion Drive the actuator（1）It is synchronized with the movement, and then the actuator（1）Drive the connecting rod（2）With respect to the front-wheel steer machine Structure（3）Overturn and driven the medicated cushion arm for linking with which（5）With respect to the Rear frame（4）Overturn.

2. folding stand according to claim 1, it is characterised in that：The actuator（1）Pivotally connected pull bar（6）One End, the pull bar（6）The pivotally connected medicated cushion arm of the other end（5）, the medicated cushion arm（5）The pivotally connected rear car Frame（4）, and the pull bar（6）With medicated cushion arm（5）Pivot connection point position be higher than the medicated cushion arm（5）With Rear frame （4）Pivot connection point position.

3. folding stand according to claim 2, it is characterised in that：The actuator（1）Including distribution triangular in shape First pivot hole（11）, the second pivot hole（12）And the 3rd pivot hole（13）, first pivot hole（11）Place's connection upper connecting rod （21）One end, second pivot hole（12）Place's connection lower link（22）One end and Rear frame（4）, the 3rd pivot Hole（13）Place's connection pull bar（6）One end.

4. folding stand according to claim 3, it is characterised in that：The upper connecting rod（21）And lower link（22）Between also It is provided with position-limit mechanism（7）, the position-limit mechanism includes to be arranged at upper connecting rod（21）On upper clamping block（71）And be arranged at The lower link（22）On lower clamping block（72）,

Under deployed condition, the upper clamping block（71）With lower clamping block（72）Clamping is spacing；

Under folded state, the upper clamping block（71）With lower clamping block（72）Separate.

5. folding stand according to claim 1, it is characterised in that：The foresteerage gear（3）Including supporting sleeve （31）, the supporting sleeve（31）Interior rotatably arranged with there is steering tube（32）, the steering tube（32）Upper end be provided with dragon First handss（33）, its lower end is provided with front-wheel installing rack（34）；The supporting sleeve（31）Connector is additionally provided with outer wall （35）, the connector（35）On be provided with the 4th pivot hole with difference in height（351）And the 5th pivot hole（352）, it is located at The 4th pivot hole at higher position（351）To the supporting sleeve（31）Distance be less than the 5th pivot hole（352）Arrive The distance of the supporting sleeve.

6. folding stand according to claim 5, it is characterised in that：The Rear frame（4）On be provided with for launch State supports the medicated cushion arm（5）Support bar（8）.

7. folding stand according to claim 5, it is characterised in that：The Rear frame（4）With the actuator（1）Pivot The both sides of the position of connection are symmetrically arranged with lift-pull handle（9）.

8. folding stand according to claim 7, it is characterised in that：The actuator（1）By locking relieving mechanism （10）Locked and discharged, the locking relieving mechanism（10）Including the pivotally connected Rear frame（4）Locking piece（101） And the actuator（1）Upper setting with the locking piece（101）The draw-in groove of coupling（102）, the locking piece（101）Connection The drive mechanism for driving which to overturn（103）And resetting-mechanism（104）.

9. folding stand according to claim 8, it is characterised in that：The drive mechanism（103）Drive including least one set Dynamic button（1031）And mounting cup（1032）, the activation button（1031）Can be in the mounting cup（1032）In stretch and its By connecting rod（1033）Connect the locking piece（101）；The resetting-mechanism（104）It is disposed on the locking piece（101） With Rear frame（4）Pivot connection point at torsion spring or one end is fixed on the activation button（1031）On, the other end is fixed In the mounting cup（1032）On spring.

10. folding tricycle, it is characterised in that：Including the arbitrary described folding stand of claim 1-9, the front-wheel steer machine Structure（3）On be provided with front-wheel（110）, the Rear frame（4）On be symmetrically arranged with two trailing wheels（120）, the medicated cushion arm（5） Upper telescopic it is provided with medicated cushion（130）, the folding tricycle also at least includes power drive system and brake system.