CN209064268U - A kind of child's tricycle - Google Patents

Abstract

The utility model discloses a kind of child's tricycle, including frame body, the near front wheel and off-front wheel and rear-wheel, Direction Control Unit, seat mechanism, front-wheel lead agency and rear-wheel transmission mechanism that frame body rear portion is arranged in of frame body front are set, Direction Control Unit includes that the rotation shaft assembly that relative frame ontology rotates in the frame body is arranged in；Seat mechanism is fixedly connected with rotation shaft assembly, and seat mechanism is able to drive rotation shaft assembly and rotates；The run-off the straight with the rotation of rotation shaft assembly of front-wheel lead agency, and then drive the near front wheel and off-front wheel run-off the straight；Rear-wheel transmission mechanism includes transmission mechanism and the rear wheel fork that connect with rear-wheel；The inclined direction of the near front wheel and off-front wheel is identical as the rotation direction of rear-wheel.The utility model operates seat by body swing to realize that child's tricycle turns to, and is equivalent to and controls direction with body, easy to operate, hand-free is more laborsaving.

Description

A kind of child's tricycle

Technical field

The utility model relates to articles for children technical field more particularly to a kind of child's tricycle.

Background technique

In the prior art, child's tricycle include include vehicle frame, the front component that bottom of frame is set and wheel assembly, Driving mechanism and direction control mechanism, it is generally the case that children are controlled tricycle by the steering of handle and turned to the left or to the right To, but it is harder when child resistant, easily there is the unstable situation of car body.

Therefore, a handling and perfect child's tricycle of safety is designed, and child's tricycle is made to have more interest, Then seem very urgent.

Utility model content

To solve problems of the prior art, the utility model provides a kind of easily controllable direction and stability is high Child's tricycle, the technical solution is as follows:

The utility model provides a kind of child's tricycle, and including frame body, the frame body front is arranged in The near front wheel and off-front wheel and the rear-wheel that the frame body rear portion is set, the child's tricycle further include:

Direction Control Unit, the Direction Control Unit include that relative frame ontology is arranged in the frame body to rotate Rotation shaft assembly；

Seat mechanism, the seat mechanism are fixedly connected with the rotation shaft assembly, and the seat mechanism is able to drive institute Rotation shaft assembly is stated to rotate；

Front-wheel lead agency, the front-wheel lead agency are arranged between described the near front wheel and off-front wheel, and with described It rotates the rotation of shaft assembly and run-off the straight, and then drives described the near front wheel and off-front wheel run-off the straight；

Rear-wheel transmission mechanism, the rear-wheel transmission mechanism include with it is described rotation shaft assembly cooperation transmission mechanism and with The rear wheel fork of the rear-wheel connection, under the transmission effect of the transmission mechanism, the rear wheel fork is with the rotation shaft assembly Rotation and rotate, and then the rear-wheel is driven to rotate；

The inclined direction of described the near front wheel and off-front wheel is identical as the rotation direction of the rear-wheel.

Further, the rotation shaft assembly includes the rotation axis being fixedly connected with seat mechanism, is connected with rotation axis front end The rotating member connect and the first shaft member connecting with the rear end of the rotation axis, the rotating member and the first shaft member are with described Rotation axis rotation.

Further, the Direction Control Unit further includes two the first joint connectors, first joint connector The front-end and back-end of the rotation axis are separately positioned on, and are fixedly connected with the frame body, first joint connector It is rotated relative to the rotation axis.

Further, it is provided with second joint connector between the rotation axis and first joint connector, with The second joint connector that the rotation axis front end is fixedly connected is fixedly connected with the rotating member, after the rotation axis The second joint connector being fixedly connected is held to be fixedly connected with first shaft member.

Further, the transmission mechanism includes first gear and second gear, and the first gear is set in described In one shaft member, the second gear is set in the rear wheel fork, and the first gear and second gear transmission cooperate.

Further, the rear-wheel transmission mechanism further includes the first connector, first connector and the vehicle frame sheet Body and first joint connector are fixedly connected, and the rear-wheel is connect by the rear wheel fork with the first connector, after described Wheel fork rotates with respect to the first connector.

Further, the front-wheel lead agency includes first connecting rod, second connecting rod, the second connector, is fixed at Shaft on second connector, second connector are two, and the both ends of the first connecting rod are respectively with described second One end of connector rotates connection, and the both ends of the second connecting rod rotate with the other end of second connector company respectively It connects, described two second connectors are separately mounted on described the near front wheel and off-front wheel by the shaft.

Further, the first connecting rod and the parallel setting of second connecting rod, the first connecting rod drive two described the Two connectors are tilted to the same side, and then described the near front wheel and off-front wheel are tilted to same direction.

Further, the front-wheel lead agency further includes two resetting-mechanisms, one end of the resetting-mechanism with it is described First connecting rod rotates connection, and the other end rotates with the second connecting rod and connect；When described the near front wheel and off-front wheel are in When non-heeling condition, the resetting-mechanism is in non-deformed state.

Further, limited position mechanism is set on the first connecting rod, waist round hole is provided on the position-limit mechanism, it is described It rotates the waist round hole on shaft assembly and the position-limit mechanism and limits and cooperate, the rotation shaft assembly drives the first connecting rod to the left Or it moves right, and then described the near front wheel and off-front wheel are tilted to same direction.

Technical solution bring provided by the utility model has the beneficial effect that:

The child's tricycle structure of the utility model is simple, few using component, by body swing operate seat mechanism come It realizes that child's tricycle turns to, is equivalent to and controls direction with body, steering operation is convenient, and hand-free is more laborsaving, also increases The interest of the child's tricycle is added.

Detailed description of the invention

It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.

Fig. 1 is the perspective view of child's tricycle provided by the embodiment of the utility model；

Fig. 2 is the main view of child's tricycle provided by the embodiment of the utility model；

Fig. 3 is the side view of child's tricycle provided by the embodiment of the utility model；

Fig. 4 is the top view of child's tricycle provided by the embodiment of the utility model；

Fig. 5 is the structural schematic diagram of the rear-wheel transmission mechanism of child's tricycle provided by the embodiment of the utility model；

Fig. 6 is the sectional view of the Direction Control Unit of child's tricycle provided by the embodiment of the utility model.

Wherein, appended drawing reference includes: 1- frame body, 2- Direction Control Unit, 21- rotation axis, the first shaft member of 22-, 23- First joint connector, 24- second joint connector, 25- rotating member, 3- rear-wheel, 4- rear-wheel transmission mechanism, 41- rear wheel fork, The first connector of 43-, 44- first gear, 45- second gear, 5- front-wheel lead agency, 51- first connecting rod, 52- second connecting rod, The second connector of 53-, 54- resetting-mechanism, 55- position-limit mechanism, 56- shaft, 6- seat mechanism, 7- the near front wheel, 8- off-front wheel.

Specific embodiment

In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described Embodiment is only the embodiment of the utility model a part, instead of all the embodiments.Based on the reality in the utility model Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered When the range for belonging to the utility model protection.

In one embodiment of the utility model, a kind of child's tricycle is provided, as shown in Figures 1 to 4 comprising Frame body 1, the near front wheel 7 that 1 front of frame body is arranged in and off-front wheel 8, are set the rear-wheel 3 that 1 rear portion of frame body is arranged in The handle on 1 top of frame body is set, the child's tricycle further includes Direction Control Unit 2, seat mechanism 6, front-wheel drive Mechanism 5 and rear-wheel transmission mechanism 4.

In the present embodiment, rear-wheel 3 is provided with one, and the rear-wheel 3 is set to the middle part at the rear portion of child's tricycle.

In the present embodiment, rear-wheel 3 is driving wheel, and the near front wheel 7 and off-front wheel 8 are driven wheel, and the child's tricycle is also wrapped The driving motor being arranged on rear-wheel 3 is included, driving motor drives rear-wheel 3 to rotate, so that child's tricycle be made to advance.

The specific structure of above-mentioned Direction Control Unit 2 is as follows: the specific structure of the Direction Control Unit 2 is referring to Fig. 1, figure 5 and Fig. 6, the Direction Control Unit 2 include that the rotation axis group that relative frame ontology 1 rotates in the frame body 1 is arranged in Part, the rotation shaft assembly include the rotation axis 21 being fixedly connected with seat mechanism 6, connect with the front end of the rotation axis 21 Rotating member 25 and the first shaft member 22 connecting with the rear end of the rotation axis 21, the rotation axis 21 can be around Pivot Point Center Line rotation, the rotating member 25 and the first shaft member 22 are rotated with the rotation axis 21.The Direction Control Unit 2 is for controlling The child's tricycle turns to, and when child's tricycle needs to turn to, can drive rear-wheel 3 and rotation by the rotation of rotation axis 21 Part 25 rotates simultaneously, and the direction that rear-wheel 3 rotates is identical as the direction that the body for the children being sitting on seat mechanism 6 rolls.

The Direction Control Unit 2 further includes two the first joint connectors 23, and first joint connector 23 is distinguished The front-end and back-end of the rotation axis 21 are set, and are fixedly connected with the frame body 1, first joint connector 23 Relative to the rotation axis 21 rotate, be arranged in 21 front end of rotation axis the first joint connector 23 and 25 phase of rotating member To rotation connection；The first joint connector 23 and the first shaft member 22 that 21 rear end of rotation axis is arranged in, which relatively rotate, to be connected.

Further, second joint connector is provided between the rotation axis 21 and two the first joint connectors 23 24, referring to figs. 5 and 6, the second joint being fixedly connected with 21 front end of rotation axis connects the structure of second joint connector 24 Fitting 24 is fixedly connected with the rotating member 25, the second joint connector 24 being fixedly connected with 21 rear end of rotation axis and institute It states the first shaft member 22 to be fixedly connected, the second joint connector 24 is rotated with the rotation axis 21, and the second joint connects Boss is equipped in fitting 24, the boss makes connection of the second joint connector 24 respectively with rotating member 25 and the first shaft member 22 It is more firm；It is equipped with bearing in first joint connector 23, the bearing advantageously reduces the rotating member 25 and first Frictional force when shaft member 22 rotates between second joint connector 24.

The specific structure of the front-wheel lead agency 5 is as follows: the front-wheel lead agency 5 is arranged in 7 He of the near front wheel Between off-front wheel 8, the structure of front-wheel lead agency 5 referring to Fig. 1 and Fig. 2, the front-wheel lead agency 5 include first connecting rod 51, Second connecting rod 52, the second connector 53 and the shaft 56 being fixed on second connector 53, second connection Part 53 is two, and the both ends of the first connecting rod 51 rotate with one end of second connector 53 connect respectively, described the The both ends of two connecting rods 52 rotate with the other end of second connector 53 connect respectively, and described two second connectors 53 are logical It crosses the shaft 56 to be separately mounted on described the near front wheel 7 and off-front wheel 8, the first connecting rod 51, second connecting rod 52 and two Second connector 53 constitutes four-bar mechanism, and when child's tricycle is static or straight-line travelling, the first connecting rod 51, second connects Bar 52 and two the second connectors 53 constitute rectangular configuration；When first connecting rod 51 occurs mobile, the first connecting rod 51, second Connecting rod 52 and two the second connectors 53 constitute parallelogram sturcutre.

In the present embodiment, it is preferable that the first connecting rod 51 and second connecting rod 52 have equal length, the first connecting rod 51 are set to the top of second connecting rod 52, and the first connecting rod 51 and the parallel setting of second connecting rod 52, the first connecting rod 51 Two the second connectors 53 are driven to tilt to the same side, and then described the near front wheel 7 and off-front wheel 8 are tilted to same direction.

Further, limited position mechanism 55, the specific structure ginseng of the position-limit mechanism 55 are set on the first connecting rod 51 See Fig. 1, waist round hole is provided on the position-limit mechanism 55, the waist round hole on the rotation shaft assembly and the position-limit mechanism 55 limits Position cooperation, when the rotation shaft assembly drives the first connecting rod 51 to be moved to the left or right, the rotating member 25 can be along institute It states waist round hole to move up and down, and then described the near front wheel 7 and off-front wheel 8 are tilted to same direction, and the near front wheel 7 and off-front wheel 8 incline Oblique direction is consistent with the mobile direction of first connecting rod 51.

The front-wheel lead agency 5 further includes two resetting-mechanisms 54, one end of the resetting-mechanism 54 and described first Connecting rod 51 rotates connection, and the other end rotates with the second connecting rod 52 and connect；When described the near front wheel 7 and off-front wheel 8 are located When non-heeling condition, the resetting-mechanism 54 is in non-deformed state；The resetting-mechanism 54 is preferably spring.

In the present embodiment, the specific structure of the rear-wheel transmission mechanism 4 is as follows: the structure of rear-wheel transmission mechanism 4 is referring to figure 3, Fig. 5 and Fig. 6, the rear-wheel transmission mechanism 4 include with it is described rotation shaft assembly cooperation transmission mechanism and with the rear-wheel 3 The rear wheel fork 41 of connection, the transmission mechanism include first gear 44 and second gear 45, first gear 44 (level) set It is located in (horizontal) first shaft member 22 (specific structure is referring to Fig. 3 and Fig. 6), the second gear 45 (vertical) is set in (perpendicular It is straight) in rear wheel fork 41 (specific structure is referring to Fig. 3 and Fig. 6), the first gear 44 and second gear 45 are that transmission cooperation (is nibbled Close), it is preferable that the first gear 44 and second gear 45 are 1:1 driving cog, and the first gear 44 is with the first axle Part 22 rotates, and then the first gear 44 drives the second gear 45 to rotate, and the second gear 45 drives described Rear wheel fork 41 rotates, and then the rear-wheel 3 is driven to rotate.

Further, the rear-wheel transmission mechanism 4 further includes the first connector 43 that 1 top of frame body is arranged in, the The structure of a connection piece 43 connects referring to Fig. 3 and Fig. 5, first connector 43 with the frame body 1 and first joint Fitting 23 is fixedly connected, and the rear-wheel 3 is connect by the rear wheel fork 41 with the first connector 43, the rear wheel fork 41 opposite the A connection piece 43 rotates.

In the present embodiment, the seat mechanism 6 is fixedly connected with the rotation shaft assembly, and the seat mechanism 6 can It drives the rotation shaft assembly to rotate, when child's tricycle needs to turn to, is sitting in the body of the children on seat mechanism 6 It is rolled to side, rotation axis 21 is applied pressure to, so that the seat mechanism 6 drives the rotation axis 21 to rotate, relative to biography The structure in the handle control direction of system, the utility model, which is equivalent to, controls direction with body, and steering operation is convenient, can liberate double Hand, it is more laborsaving.

Detailed process is as follows for child's tricycle steering: if child's tricycle turns to the left, forward from 1 rear of frame body It sees, rotation axis 21 is rotated counterclockwise around self-axis line, and rotating member 25 is driven to rotate, and the rotating member 25 drives first connecting rod 51 It is moved to the left, i.e., first connecting rod 51 is mobile according to the direction D in Fig. 4, to drive two shafts 56 according to the direction D in Fig. 4 It is mobile, and then the near front wheel 7 and off-front wheel 8 tilt to the left, i.e., tilt according to the direction D in Fig. 4, meanwhile, when rotation axis 21 is inverse Hour hands rotation, drives the first shaft member 22 to rotate in an anti-clockwise direction, and the first shaft member 22 drives first gear 44 to rotate, because of first gear 44 be to be driven cooperation, and then first gear 44 drives second gear 45 to rotate with second gear 45, and second gear 45 drives rear-wheel Fork 41 rotates according to the direction A in Fig. 4, and then rear-wheel 3 is driven to rotate according to the direction A in Fig. 4, to realize Virgin tricycle turns to the left.

During child's tricycle turns to the left, the body of children rolls to the left, this to be located at children's three-wheel Spring on the left of vehicle in resetting-mechanism 54 is in tensional state, and the spring in resetting-mechanism 54 on the right side of child's tricycle is in Compressive state；When the body of children does not apply leftward or rightward power to seat mechanism, in two sides resetting-mechanism 54 Reset resetting-mechanism 54 and frame body 1 under the action of the elastic force of spring, child's tricycle is just kept when front direction straight line Traveling.

The process that child's tricycle turns to the right is illustrated so that above-mentioned child's tricycle turns to the left as an example.

In child's tricycle steering procedure, turn of the inclined direction of described the near front wheel 7 and off-front wheel 8 and the rear-wheel 3 Dynamic direction is identical, and described the near front wheel 7 and the inclined angle of off-front wheel 8 and the angle of the rear-wheel 3 rotation are respectively less than and are equal to 20 °.

The utility model provides a kind of child's tricycle, operates seat by body swing to realize that child's tricycle turns To being equivalent to and control direction with body, steering operation is convenient, and hand-free is more laborsaving.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (10)

1. a kind of child's tricycle, the near front wheel (7) and the right side including frame body (1), setting in the frame body (1) front Front-wheel (8) and setting the frame body (1) rear portion rear-wheel (3), which is characterized in that the child's tricycle is also wrapped It includes:

Direction Control Unit (2), the Direction Control Unit (2) include that relative frame sheet is arranged on the frame body (1) The rotation shaft assembly of body (1) rotation；

Seat mechanism (6), the seat mechanism (6) are fixedly connected with the rotation shaft assembly, and the seat mechanism (6) being capable of band The rotation shaft assembly is moved to rotate；

Front-wheel lead agency (5), the front-wheel lead agency (5) are arranged between described the near front wheel (7) and off-front wheel (8), and The run-off the straight with the rotation of the rotation shaft assembly, and then drive the near front wheel (7) and off-front wheel (8) run-off the straight；

Rear-wheel transmission mechanism (4), the rear-wheel transmission mechanism (4) include with it is described rotation shaft assembly cooperation transmission mechanism and The rear wheel fork (41) connecting with the rear-wheel (3), under the transmission effect of the transmission mechanism, the rear wheel fork (41) is with institute It states the rotation of rotation shaft assembly and rotates, and then the rear-wheel (3) is driven to rotate；

The inclined direction of the near front wheel (7) and off-front wheel (8) is identical as the rotation direction of the rear-wheel (3).

2. child's tricycle according to claim 1, which is characterized in that the rotation shaft assembly includes and seat mechanism (6) rotation axis (21) that is fixedly connected, the rotating member (25) being connect with the front end of the rotation axis (21) and with the rotation The first shaft member (22) of the rear end connection of axis (21), the rotating member (25) and the first shaft member (22) are with the rotation axis (21) Rotation.

3. child's tricycle according to claim 2, which is characterized in that the Direction Control Unit (2) further includes two First joint connector (23), first joint connector (23) are separately positioned on the front end of the rotation axis (21) with after End, and be fixedly connected with the frame body (1), first joint connector (23) rotates relative to the rotation axis (21).

4. child's tricycle according to claim 3, which is characterized in that the rotation axis (21) and first joint connect Second joint connector (24) are provided between fitting (23), described second be fixedly connected with the rotation axis (21) front end Joint connector (24) is fixedly connected with the rotating member (25), described second be fixedly connected with the rotation axis (21) rear end Joint connector (24) is fixedly connected with first shaft member (22).

5. child's tricycle according to claim 2, which is characterized in that the transmission mechanism include first gear (44) and Second gear (45), the first gear (44) are set on first shaft member (22), and the second gear (45) is set in On the rear wheel fork (41), the first gear (44) and second gear (45) transmission cooperate.

6. child's tricycle according to claim 3, which is characterized in that the rear-wheel transmission mechanism (4) further includes first Connector (43), first connector (43) and the frame body (1) and the fixed company of first joint connector (23) It connects, the rear-wheel (3) is connect by the rear wheel fork (41) with the first connector (43), and the rear wheel fork (41) opposite first connects Fitting (43) rotates.

7. child's tricycle according to claim 1, which is characterized in that the front-wheel lead agency (5) includes the first company Bar (51), second connecting rod (52), the second connector (53) and the shaft being fixed on second connector (53) (56), second connector (53) be two, the both ends of the first connecting rod (51) respectively with second connector (53) One end rotate connection, the other end of the both ends of the second connecting rod (52) respectively with second connector (53) rotates Connection, described two second connectors (53) are separately mounted to described the near front wheel (7) and off-front wheel (8) by the shaft (56) On.

8. child's tricycle according to claim 7, which is characterized in that the first connecting rod (51) and second connecting rod (52) Parallel setting, the first connecting rod (51) drives two second connectors (53) to tilt to the same side, and then the left side Front-wheel (7) and off-front wheel (8) are tilted to same direction.

9. child's tricycle according to claim 7, which is characterized in that the front-wheel lead agency (5) further includes two Resetting-mechanism (54), one end of the resetting-mechanism (54) rotates with the first connecting rod (51) to be connect, the other end with it is described Second connecting rod (52) rotates connection；When described the near front wheel (7) and off-front wheel (8) are in non-heeling condition, the reset Mechanism (54) is in non-deformed state.

10. child's tricycle according to claim 7, which is characterized in that be provided with limit on the first connecting rod (51) Mechanism (55), is provided with waist round hole on the position-limit mechanism (55), on the rotation shaft assembly and the position-limit mechanism (55) Waist round hole limit cooperation, the rotation shaft assembly drive the first connecting rod (51) to be moved to the left or right, and then described left front (7) and off-front wheel (8) is taken turns to tilt to same direction.