CN203727564U

CN203727564U - Recreational vehicle

Info

Publication number: CN203727564U
Application number: CN201420078413.7U
Authority: CN
Inventors: 托马斯·奥康奈尔
Original assignee: Happy Motion Co Ltd That Lives
Current assignee: Happy Motion Co Ltd That Lives; Yvolve Sports Ltd
Priority date: 2014-02-24
Filing date: 2014-02-24
Publication date: 2014-07-23
Anticipated expiration: 2024-02-24

Abstract

The utility model discloses a recreational vehicle. The recreational vehicle is characterized in that a front wheel set or a rear wheel set of the recreational vehicle is provided with two wheels which are parallelly configured, the axes of the two wheels are not fixed to the same horizontal line, the two wheels can be mounted at the tail end of a vehicle frame via an adjusting assembly capable of moving relative to the vehicle frame, and a fixing assembly which is used for controlling whether the adjusting assembly can move relative to the vehicle frame or not is arranged between the vehicle frame and the adjusting assembly. The recreational vehicle has the advantages that at least the contact width of the rear wheel set and the ground can be adjusted, accordingly, the service variability of the recreational vehicle can be improved, and the applicability and the practicality of the recreational vehicle can be enhanced.

Description

RV recreational vehicle

Technical field

The utility model, about a kind of RV recreational vehicle, refers to especially a kind of wide cut that at least can supply the front wheels of adjusting or rear wheels to contact with ground, and then increases use variability, and the RV recreational vehicle of lifting applicability and practicality.

Background technology

Press, when child's learning riding bicycle, mostly helped from side and assist its balance by other people in the past, or in the other auxiliary wheel of installing of rear wheel, since reach the destination of study; But, the similar practice is for child's but not too large actual help of association's effect by bike ahead of time, only can reach at most fixing bodywork, prevent that child from not falling the object of lower body, in the course of time more can allow child produce a kind of anaclisis, can not help itself to have given play on the contrary the potential of the sense of equilibrium.

Therefore, in the streets there is a kind of similar RV recreational vehicle that the stretcher of kiddie car and chain are removed (or claim glissading vehicle, help step car), it is provided with one for the front fork that connects handle and front-wheel in the front end axle of a vehicle frame substantially, other end axle in vehicle frame is provided with a trailing wheel, separately be connected to a seat in the middle section of vehicle frame group, can be sitting on this seat for child, help handle by hand, and pass to drive front-wheel and trailing wheel rotation that RV recreational vehicle is advanced by two the feet step on the ground, use training child's muscular strength and balancing force.

The front and rear wheel of similar existing RV recreational vehicle is made up of single wheel all respectively, and therefore under normal conditions, the mode being contacted with ground by the tyre surface of each wheel slides; Again, for providing handling comparatively flexibly, the tyre width of the tread width of each wheel and normal children's bicycle is without obvious difference, the tread width that adds wheel cannot be adjusted, therefore still have in the study suitable difficulty, and for young child, also comparatively difficult, dangerous in study, use, so that significantly reduce applicability and the practicality of RV recreational vehicle.

Utility model content

The technical matters that the utility model solves is providing a kind of wide cut that at least can contact with ground for wheels before regulating or rear wheels, and then increase use variability, and the RV recreational vehicle of lifting applicability and practicality.

The technological means that the utility model adopts is as described below.

RV recreational vehicle of the present utility model, is provided with a seat in the middle section of a vehicle frame substantially, is respectively equipped with for the front wheels and the rear wheels that contact with ground, and is provided with leader at this vehicle frame front end in the front and back ends of this vehicle frame; It is characterized in that: this RV recreational vehicle is provided with two wheels of configuration side by side at its front wheels or rear wheels, the axis on-fixed of these two wheels is at same level line, and these two wheels see through one can be installed on this vehicle frame tail end with the adjusting part of this vehicle frame relative motion, separately between this vehicle frame and this adjusting part, be provided with one for this adjusting part of control can with this vehicle frame relative motion whether fixation kit.

Utilize said structure feature, because RV recreational vehicle of the present utility model is provided with the wheel of two axis on-fixeds at same level line at its front wheels or rear wheels, therefore can be under the mating reaction of fixation kit, person easy to use selects to be contacted with ground by the wider side of the tread pitches of these two wheels voluntarily, or selects the mode being contacted with ground by the narrower side of the tread pitches of these two wheels to use RV recreational vehicle.Thereby under the use state that can contact with ground in the wider side of the tread pitches of these two wheels, increase the car body stability of advancing, contribute to young child's study, use, and under the use state that can contact with ground in the narrower side of the tread pitches of these two wheels, maintain the car body alerting ability of advancing, make to obtain the good enjoyment that drives.

According to above-mentioned keystone configuration feature, the rear end of described vehicle frame has been horizontally set with a round slot bore; This fixation kit have one for corresponding be inserted in this round slot bore and can in the garter spring of this round slot bore intrinsic displacement, and the pull bar being connected with this garter spring through the wall of this round slot bore by this frame outside, be pivoted with a confession in this pull bar tail end and draw this pull rod shaft and do the cam spanner of axial reciprocating displacement; This adjusting part has one for the corresponding axle piece that is inserted in this garter spring and can therebetween rotates, and is respectively equipped with a wheel shaft for installing wheel in the two ends of this axle piece, and the axis of these two wheel shafts is in the same horizontal line non-; And this axle piece can be drawn by this cam spanner and this pull bar with this garter spring, press mutually and cannot rotate with this round slot bore and be, or do not press with this round slot bore and can for rotate state change.

According to above-mentioned keystone configuration feature, the rear end of described vehicle frame has been horizontally set with a round slot bore; This fixation kit have one for corresponding be inserted in this round slot bore and can in the garter spring of this round slot bore intrinsic displacement, and the pull bar being connected with this garter spring through the wall of this round slot bore by this frame outside, be pivoted with a confession in this pull bar tail end and draw this pull rod shaft and do the cam spanner of axial reciprocating displacement; This adjusting part has one for the corresponding axle piece that is inserted in this garter spring and can therebetween rotates, this axle piece sets firmly respectively a lining that can rotate in round slot bore with this axle piece relative to the position of stretching out these garter spring both sides, the another wheel shaft for installing wheel that is respectively equipped with in the two ends of this axle piece, the axis of these two wheel shafts is in the same horizontal line non-; And this axle piece can be drawn by this cam spanner and this pull bar with this garter spring, press mutually and cannot rotate with this round slot bore and be, or do not press with this round slot bore and can for rotate state change.

Described adjusting part is at least at a wherein lateral wheel of these rear wheels, is provided with a wheel shaft Joint of installing with this wheel and the turn-button that can rotate with this axle piece.

The described RV recreational vehicle at least therein cylindrical place of a lining is provided with one section of confession and limits the groove of this axle piece rotational angle, and the round slot bore inner ring of this vehicle frame is provided with at least one for the corresponding projection that stretches into this groove.

The described RV recreational vehicle at least therein cylindrical place of a lining is provided with one for the groove that limits this axle piece rotational angle, and the round slot bore inner ring of this vehicle frame is provided with at least one for the corresponding projection that stretches into this groove; And this adjusting part is at least at a wherein lateral wheel of these rear wheels, be provided with a wheel shaft Joint of installing with this wheel and the turn-button that can rotate with this axle piece.

Described axle piece supplies the position socket-connecting with each lining to be equipped with respectively a buckle slot at it, and each lining inner ring is respectively equipped with one and hooks plate for the corresponding elasticity that buckles into buckle slot.

Described axle piece is respectively equipped with one first straight section two of cylindrical place corresponding positions, and the another side that this garter spring is connected with this pull bar relatively at inner ring is provided with one and supplies the second straight section pressing mutually with arbitrary the first straight section.

Described axle piece is respectively equipped with one first straight section two of cylindrical place corresponding positions, and the another side that this garter spring is connected with this pull bar relatively at inner ring is provided with one and supplies the second straight section pressing mutually with arbitrary the first straight section of this axle piece; And, two corresponding positions that these two linings enclose be therein respectively equipped with one with the 3rd straight section of the first straight sector engaging of this axle piece.

According to above-mentioned keystone configuration feature, the rear end of described vehicle frame is concaved with a class, is provided with a screw in the vertical walls of this class; This adjusting part has two and is located in respectively this vehicle frame with respect to these class both sides and block that can swing relative to this vehicle frame, be provided with a wheel shaft for installing wheel in each block, each block be separately respectively equipped with one mutually stacked and with the locating plate that the vertical walls of this class reclines mutually, on the locating plate of each block, be respectively equipped with one and wear groove with the involutory location of the screw of this class; This fixation kit have one through the location of each block wear groove and with the bolt of screw that screws in this class.

According to above-mentioned keystone configuration feature, the rear end of described vehicle frame is concaved with a class, is provided with a screw in the vertical walls of this class; This adjusting part has two and is located in respectively this vehicle frame with respect to these class both sides and block that can swing relative to this vehicle frame, be provided with a wheel shaft for installing wheel in each block, each block be separately respectively equipped with one mutually stacked and with the locating plate that the vertical walls of this class reclines mutually, on the locating plate of each block, be respectively equipped with one and wear groove with the involutory location of the screw of this class; This fixation kit have one through the location of each block wear groove and with the bolt of screw that screws in this class, and be pivoted with a cam spanner in this bolt tail end.

According to above-mentioned keystone configuration feature, described RV recreational vehicle is respectively equipped with a front pipe and a pipe in this vehicle frame front end and middle section, is equiped with a front fork in this front pipe place, and this handle is located at this front fork upper end, and these front wheels have a wheel that is located in this front fork lower end; And this seat is located on this pipe.

The disclosed RV recreational vehicle of the utility model, can produce following effect.

1. visual user's age or proficiency difference, the wide cut that regulates voluntarily wheels to contact with ground, relatively has more practicality and drives safety.

2. can meet child's user demand of various age levels, relatively have more applicability.

3. under the state that overall RV recreational vehicle still can contact with ground in the wider side of the tread pitches of two of a rear wheels wheel, uprightly park or receive, relatively having more ease of use.

Brief description of the drawings

Fig. 1 is RV recreational vehicle stereoscopic figure of the present utility model.

Fig. 2 is the rear wheels STRUCTURE DECOMPOSITION figure of the utility model the first embodiment.

Fig. 3 is the rear wheel group structure cutaway view of the utility model the first embodiment.

Fig. 4 is the structure cutaway view that the utility model the first embodiment axis piece is rotated by garter spring restriction.

Fig. 5 is the joint construction schematic diagram of the utility model the first embodiment axis piece and lining.

Fig. 6 is another use view of rear wheels in the utility model the first embodiment.

Fig. 7 is the use status architecture schematic diagram of rear wheels in the utility model the second embodiment.

Fig. 8 is the use status architecture schematic diagram of rear wheels in the utility model the 3rd embodiment.

Figure number explanation:

10 vehicle frames

11 front pipes

12 pipes

13 round slot bores

131 projections

14 classes

141 screws

20 seats

30 handles

40 front forks

51 wheels

52 wheels

60 adjusting parts

61 axle pieces

611 first straight sections

612 buckle slots

62 wheel shafts

63 linings

631 grooves

632 elasticity hook plate

633 the 3rd straight sections

64 turn-buttons

65 blocks

651 locatings plate

Groove is worn in 652 location

70 fixation kits

71 garter springs

711 second straight sections

72 pull bars

73 cam spanners

74 bolts

75 bolts

76 cam spanners.

Detailed description of the invention

The utility model mainly provides a kind of wide cut that at least can supply the front wheels of adjusting or rear wheels to contact with ground, and then increase is used variability, and the RV recreational vehicle of lifting applicability and practicality, Fig. 1 RV recreational vehicle stereoscopic of the present utility model figure, shown in the rear wheels STRUCTURE DECOMPOSITION figure of Fig. 2 the utility model the first embodiment, RV recreational vehicle of the present utility model, substantially be provided with a seat 20 in the middle section of a vehicle frame 10, before this vehicle frame 10, rear end is respectively equipped with for the front wheels and the rear wheels that contact with ground, and be provided with leader 30 at these vehicle frame 10 front ends.

In the present embodiment, RV recreational vehicle is respectively equipped with a front pipe 11 and a pipe 12 in these vehicle frame 10 front ends and middle section, be equiped with a front fork 40 in these front pipe 11 places, this handle 30 is located at this front fork 40 upper ends, and these front wheels have a wheel 51 that is located in these front fork 30 lower ends; And this seat 20 is located on this pipe 12.

Principal character of the present utility model is: this RV recreational vehicle is at least provided with two wheels 52 of configuration side by side at wheels thereafter, the axis on-fixed of these two wheels 52 is at same level line, and this two wheels 52 see through one can be installed on this vehicle frame 10 tail ends with the adjusting part 60 of these vehicle frame 10 relative motions, separately between this vehicle frame 10 and this adjusting part 60, be provided with one for this adjusting part 60 of control can with these vehicle frame 10 relative motions whether fixation kit 70.That is two wheels 52 of rear wheels can, under the effect of adjusting part 60, produce wide at the top and narrow at the bottom or up-narrow and down-wide allocative effect, and through fixation kit 70, two wheels 52 of rear wheels are fixed under wide at the top and narrow at the bottom or up-narrow and down-wide state and are used.

Certainly, also can be provided with two wheel (not shown) of configuration side by side at its front wheels, and can see through adjusting part and connecting element, and two wheels of front wheels are fixed under wide at the top and narrow at the bottom or up-narrow and down-wide state and are used.

In the embodiment of Fig. 1 to Fig. 6, the rear end of described vehicle frame 10 has been horizontally set with a round slot bore 13; This fixation kit 70 have one for corresponding be inserted in this round slot bore 13 and can in the garter spring 71 of these round slot bore 13 intrinsic displacements, and the pull bar 72 being connected with this garter spring 71 through the wall of this round slot bore 13 by these vehicle frame 10 outsides, be pivoted with one for the cam spanner 73 that draws these pull bar 72 axles and do axial reciprocating displacement in these pull bar 72 tail ends.

As for, this adjusting part 60 has one for the corresponding axle piece 61 that is inserted in this garter spring 71 and can therebetween rotates, and is respectively equipped with a wheel shaft 62 for installing wheel 52 in the two ends of this axle piece 61, and the axis of these two wheel shafts 62 is in the same horizontal line non-; And this axle piece 61 can be drawn by this cam spanner 73 and this pull bar 72 with this garter spring 71, press mutually and cannot rotate with this round slot bore 13 and be, or do not press with this round slot bore 13 and can for rotate state change.

Certainly, be horizontally set with a round slot bore 13 in upper rear end of taking off described vehicle frame 10; This fixation kit 70 have one for corresponding be inserted in this round slot bore 13 and can in the garter spring 71 of these round slot bore 13 intrinsic displacements, and the pull bar 72 being connected with this garter spring 71 through the wall of this round slot bore 13 by these vehicle frame 10 outsides, be pivoted with one for the cam spanner 73 that draws these pull bar 72 axles and do axial reciprocating displacement in these pull bar 72 tail ends; And this adjusting part 60 has one for the corresponding axle piece 61 that is inserted in this garter spring 71 and can therebetween rotates, and is respectively equipped with a wheel shaft 62 for installing wheel 52 in the two ends of this axle piece 61, the axis of these two wheel shafts 62 is in the same horizontal line non-; And, this axle piece 61 can be drawn by this cam spanner 73 and this pull bar 72 with this garter spring 71, press mutually and cannot rotate with this round slot bore 13 and be, or do not press with this round slot bore 13 and can for rotate state change structural form under, this adjusting part 60 can further set firmly respectively one relative to the position of stretching out these garter spring 71 both sides at its axle piece 61 can be with this axle piece 61 in the interior lining rotating 63 of round slot bore 13, see through lining 63 and press mutually with this round slot bore 13, and then generation is limited the fixed effect that cannot rotate.

Take off in embodiment upper, described adjusting part 60 is at least in wherein wheel 52 outsides of these rear wheels, be provided with wheel shaft 62 Joints of installing with this wheel 52 and the turn-button 64 that can rotate with this axle piece 61, make with under unclasping the restriction of axle piece 61 at fixation kit 70, the state that is (as shown in Figure 6) wide at the top and narrow at the bottom or up-narrow and down-wide (as shown in Figure 7) adjusted by two wheels of rear wheels 52 by the mode that can directly see through rotation turn-button 64.

Because RV recreational vehicle of the present utility model is provided with the wheel of two axis on-fixeds at same level line at its front wheels or rear wheels, therefore can be under the mating reaction of fixation kit, person easy to use selects to be contacted with ground by the wider side of the tread pitches of these two wheels voluntarily, or selects the mode being contacted with ground by the narrower side of the tread pitches of these two wheels to use RV recreational vehicle.Thereby under the use state that can contact with ground in the wider side of the tread pitches of these two wheels, increase the car body stability of advancing, contribute to young child's study, use, and under the use state that can contact with ground in the narrower side of the tread pitches of these two wheels, maintain the car body alerting ability of advancing, make to obtain the good enjoyment that drives.

Take off in embodiment upper, described axle piece 61 is respectively equipped with one first straight section 611 (angle of two the first straight sections 611 is 180 degree) two of cylindrical place corresponding positions, this garter spring 71 and the another side that circle is connected with this pull bar 72 relatively therein, be provided with one and supply the second straight section 711 pressing mutually with arbitrary the first straight section 611, make with under the effect of pressing at the first straight section 611 and the second straight section 711, really restrictive axes piece 61 relatively rotates with garter spring 71, and then reaches comparatively solid and reliable fixed effect.

Upper take off adjusting part 60 set firmly respectively one relative to the position of stretching out these garter spring 71 both sides at its axle piece 61 can be with this axle piece 61 under the structural form of the interior lining rotating 63 of round slot bore 13, the entirety RV recreational vehicle 10 at least therein cylindrical place of a lining 63 is provided with one for the groove 631 that limits these axle piece 61 rotational angles (180 degree), round slot bore 13 inner rings of this vehicle frame 10 are provided with at least one for the corresponding projection 131 that stretches into this groove 631, see through the effect of projection 131 and groove 631, allow user be recognized fast and whether axle piece 61 is turned to location, and can provide preferably operating handle.

Certainly, entirety RV recreational vehicle sets firmly respectively one relative to the position of stretching out these garter spring 71 both sides at its axle piece 61 at this adjusting part 60 can be with this axle piece 61 under the structural form of the interior lining rotating 63 of round slot bore 13, be provided with one for the groove 631 that limits these axle piece 61 rotational angles (180 degree) with the cylindrical place of a lining 63 at least therein, round slot bore 13 inner rings of this vehicle frame 10 are provided with at least one for the corresponding projection 131 that stretches into this groove 631; And adjusting part 60 is at least in wherein wheel 52 outsides of these rear wheels, be provided with wheel shaft 62 Joints of installing with this wheel 52 and the structural form of the turn-button 64 that can rotate with this axle piece 61 is rendered as good.

Moreover, upper take off adjusting part 60 set firmly respectively one relative to the position of stretching out these garter spring 71 both sides at its axle piece 61 can be with this axle piece 61 under the structural form of the interior lining rotating 63 of round slot bore 13, described axle piece 61 supplies the position socket-connecting with each lining 63 to be equipped with respectively a buckle slot 612 at it, each lining 63 inner rings are respectively equipped with one and hook plate 632 for the corresponding elasticity that buckles into buckle slot 612, see through the snap engagement that elasticity hooks plate 632 and buckle slot 612, produce the locating effect of restriction lining 63 slippages.

And, be respectively equipped with one first straight section 611 (angle of two the first straight sections 611 is 180 degree) two of cylindrical place corresponding positions at described axle piece 61, this garter spring 71 and the another side that circle is connected with this pull bar 72 relatively therein, be provided with one and supply under the structural form of the second straight section 711 pressing mutually with arbitrary the first straight section 611; Two corresponding positions that these two linings 63 can further enclose are therein respectively equipped with a 3rd straight section 633 engaging with the first straight section 611 of this axle piece 61, use and increase the fixed effect that restrictive axes piece 61 rotates.

In addition, in the embodiment shown in fig. 7, described vehicle frame 10 is concaved with a class 14 in its back-end, is provided with a screw 141 in the vertical walls of this class 14; 60 of this adjusting parts have two be located in respectively this vehicle frame 10 with respect to these class 14 both sides and can with the block 65 of the relative swing of this vehicle frame 10, be provided with a wheel shaft 62 for installing wheel in each block 65, each block 65 be separately respectively equipped with one mutually stacked and with the locating plate 651 that the vertical walls of this class 14 reclines mutually, on the locating plate 651 of each block 65, be respectively equipped with one and wear groove 652 with the involutory location of the screw 141 of this class 14; 70 of this fixation kits have one through the location of each block 65 wear groove 652 and with the bolt 74 of screw 141 that screws in this class 14.

Take off in the embodiment shown in Fig. 7 upper, the bolt 74 that can see through fixation kit 70 presses the locating plate of block 65 651 towards class's 14 vertical walls of vehicle frame 10, and reaches the fixing object of axis angle of two wheels 52 of rear wheels; And, after the bolt 74 of fixation kit 70 unclasps, can, via the mode of simply pulling block 65, two wheels of rear wheels 52 be adjusted and be wide at the top and narrow at the bottom or up-narrow and down-wide state.

In addition, in the embodiment shown in fig. 8, described vehicle frame 10 is concaved with a class 14 equally in its back-end, is provided with a screw 141 in the vertical walls of this class 14; 60 of this adjusting parts have two be located in respectively this vehicle frame 10 with respect to these class 14 both sides and can with the block 65 of the relative swing of this vehicle frame 10, be provided with a wheel shaft 62 for installing wheel in each block 65, each block 65 be separately respectively equipped with one mutually stacked and with the locating plate 651 that the vertical walls of this class 14 reclines mutually, on the locating plate 651 of each block 65, be respectively equipped with one and wear groove 652 with the involutory location of the screw 141 of this class 14; Difference is, this fixation kit 70 have one through the location of each block 65 wear groove 652 and with the bolt 75 of screw 141 that screws in this class 14, and be pivoted with a cam spanner 76 in these bolt 75 tail ends, the main combination that sees through bolt 75 and cam spanner 76 replaces the design of single bolt originally, makes to reach and can remove fast or produce receipts press the locating plate of block 65 651 operating effect towards class's 14 vertical walls of vehicle frame 10.

It is worth mentioning that, take off in various embodiment upper, the utility model is provided with two wheels (the axis on-fixed of these two wheels is at same level line) of configuration side by side at wheels thereafter; Certainly, in the specific implementation, also can be chosen in its front wheels and be provided with two wheels (the axis on-fixed of these two wheels is at same level line) of configuration side by side, or be all respectively equipped with two wheels (the axis on-fixed of two wheels of each wheels is at same level line) of configuration side by side at its front wheels and rear wheels, can produce equally the disclosed wide cut for regulating wheels to contact with ground of the utility model, and then increase use variability, and promote the object of applicability and practicality.In addition, in the various embodiments described above, taking children's balance truck as example, certainly also can be applicable to other RV recreational vehicle, such as Kickboard Scooter etc.

Particularly, the disclosed RV recreational vehicle of the utility model, can produce following effect.

Claims

1. a RV recreational vehicle, is provided with a seat in the middle section of a vehicle frame, is respectively equipped with for the front wheels and the rear wheels that contact with ground, and is provided with leader at this vehicle frame front end in the front and back ends of this vehicle frame; It is characterized in that:

This RV recreational vehicle is provided with two wheels of configuration side by side at its front wheels or rear wheels, the axis on-fixed of these two wheels is at same level line, and these two wheels see through one can be installed on this vehicle frame tail end with the adjusting part of this vehicle frame relative motion, separately between this vehicle frame and this adjusting part, be provided with one for this adjusting part of control can with this vehicle frame relative motion whether fixation kit.

2. RV recreational vehicle as claimed in claim 1, is characterized in that, the rear end of this vehicle frame has been horizontally set with a round slot bore; This fixation kit have one for corresponding be inserted in this round slot bore and can in the garter spring of this round slot bore intrinsic displacement, and the pull bar being connected with this garter spring through the wall of this round slot bore by this frame outside, be pivoted with a confession in this pull bar tail end and draw this pull rod shaft and do the cam spanner of axial reciprocating displacement; This adjusting part has one for the corresponding axle piece that is inserted in this garter spring and can therebetween rotates, and is respectively equipped with a wheel shaft for installing wheel in the two ends of this axle piece, and the axis of these two wheel shafts is in the same horizontal line non-; And this axle piece can be drawn by this cam spanner and this pull bar with this garter spring, press mutually and cannot rotate with this round slot bore and be, or do not press with this round slot bore and can for rotate state change.

3. RV recreational vehicle as claimed in claim 1, is characterized in that, the rear end of this vehicle frame has been horizontally set with a round slot bore; This fixation kit have one for corresponding be inserted in this round slot bore and can in the garter spring of this round slot bore intrinsic displacement, and the pull bar being connected with this garter spring through the wall of this round slot bore by this frame outside, be pivoted with a confession in this pull bar tail end and draw this pull rod shaft and do the cam spanner of axial reciprocating displacement; This adjusting part has one for the corresponding axle piece that is inserted in this garter spring and can therebetween rotates, this axle piece sets firmly respectively a lining that can rotate in round slot bore with this axle piece relative to the position of stretching out these garter spring both sides, the another wheel shaft for installing wheel that is respectively equipped with in the two ends of this axle piece, the axis of these two wheel shafts is in the same horizontal line non-; And this axle piece can be drawn by this cam spanner and this pull bar with this garter spring, press mutually and cannot rotate with this round slot bore and be, or do not press with this round slot bore and can for rotate state change.

4. RV recreational vehicle as claimed in claim 2 or claim 3, is characterized in that, this adjusting part is at least at a wherein lateral wheel of these rear wheels, is provided with a wheel shaft Joint of installing with this wheel and the turn-button that can rotate with this axle piece.

5. RV recreational vehicle as claimed in claim 3, is characterized in that, this RV recreational vehicle at least therein cylindrical place of a lining is provided with one section of confession and limits the groove of this axle piece rotational angle, and the round slot bore inner ring of this vehicle frame is provided with at least one for the corresponding projection that stretches into this groove.

6. RV recreational vehicle as claimed in claim 3, is characterized in that, this RV recreational vehicle at least therein cylindrical place of a lining is provided with one for the groove that limits this axle piece rotational angle, and the round slot bore inner ring of this vehicle frame is provided with at least one for the corresponding projection that stretches into this groove; And this adjusting part is at least at a wherein lateral wheel of these rear wheels, be provided with a wheel shaft Joint of installing with this wheel and the turn-button that can rotate with this axle piece.

7. RV recreational vehicle as claimed in claim 3, is characterized in that, this axle piece supplies the position socket-connecting with each lining to be equipped with respectively a buckle slot at it, and each lining inner ring is respectively equipped with one and hooks plate for the corresponding elasticity that buckles into buckle slot.

8. RV recreational vehicle as claimed in claim 2 or claim 3, it is characterized in that, this axle piece is respectively equipped with one first straight section two of cylindrical place corresponding positions, and the another side that this garter spring is connected with this pull bar relatively at inner ring is provided with one and supplies the second straight section pressing mutually with arbitrary the first straight section.

9. RV recreational vehicle as claimed in claim 3, it is characterized in that, this axle piece is respectively equipped with one first straight section two of cylindrical place corresponding positions, the another side that this garter spring is connected with this pull bar relatively at inner ring, is provided with one and supplies the second straight section pressing mutually with arbitrary the first straight section of this axle piece; And, two corresponding positions that these two linings enclose be therein respectively equipped with one with the 3rd straight section of the first straight sector engaging of this axle piece.

10. RV recreational vehicle as claimed in claim 1, is characterized in that, the rear end of this vehicle frame is concaved with a class, is provided with a screw in the vertical walls of this class; This adjusting part has two and is located in respectively this vehicle frame with respect to these class both sides and block that can swing relative to this vehicle frame, be provided with a wheel shaft for installing wheel in each block, each block be separately respectively equipped with one mutually stacked and with the locating plate that the vertical walls of this class reclines mutually, on the locating plate of each block, be respectively equipped with one and wear groove with the involutory location of the screw of this class; This fixation kit have one through the location of each block wear groove and with the bolt of screw that screws in this class.

11. RV recreational vehicle as claimed in claim 1, is characterized in that, the rear end of this vehicle frame is concaved with a class, are provided with a screw in the vertical walls of this class; This adjusting part has two and is located in respectively this vehicle frame with respect to these class both sides and block that can swing relative to this vehicle frame, be provided with a wheel shaft for installing wheel in each block, each block be separately respectively equipped with one mutually stacked and with the locating plate that the vertical walls of this class reclines mutually, on the locating plate of each block, be respectively equipped with one and wear groove with the involutory location of the screw of this class; This fixation kit have one through the location of each block wear groove and with the bolt of screw that screws in this class, and be pivoted with a cam spanner in this bolt tail end.

12. RV recreational vehicle as claimed in claim 1, it is characterized in that, this RV recreational vehicle is respectively equipped with a front pipe and a pipe in this vehicle frame front end and middle section, is equiped with a front fork in this front pipe place, this handle is located at this front fork upper end, and these front wheels have a wheel that is located in this front fork lower end; And this seat is located on this pipe.