CN113442991A

CN113442991A - Child tricycle linkage folding structure and child tricycle

Info

Publication number: CN113442991A
Application number: CN202110944729.4A
Authority: CN
Inventors: 刘结根; 冷志刚
Original assignee: Suzhou Liujin Industrial Design Co ltd
Current assignee: Suzhou Liujin Industrial Design Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2021-09-28

Abstract

The application relates to a children tricycle interlock beta structure, include: a base assembly; the base assembly is provided with a transmission shaft assembly connected with the rear wheel support assembly, the transmission shaft assembly is connected with the front wheel support assembly through a vehicle head connecting piece, and the front wheel support assembly can drive the vehicle head connecting piece to drive the transmission shaft assembly and enable the rear wheel support assembly connected with the transmission shaft assembly to rotate and fold together when rotating and folding. This application children tricycle can drive the locomotive connection piece by locomotive front wheel bracket component, makes the rear wheel bracket component that locomotive connection piece driving shaft subassembly is connected rotate together in order to realize the folding of frame, and folding back small, portable and deposit.

Description

Child tricycle linkage folding structure and child tricycle

Technical Field

The application relates to the field of children's bicycles, in particular to a child tricycle linkage folding structure and a child tricycle.

Background

The baby carriage is a large class of children toys, and comprises four classes of children bicycles, children carts, baby strollers and children tricycles. At present, children's tricycle among the prior art mainly includes front fork, front wheel, handlebar, rear frame and saddle and locates the rear wheel of rear frame both sides respectively, and its simple structure, the function singleness can only present with the gesture of riding, when the tricycle need be deposited, go out to carry or transport, can be too big because of the volume, and lead to the vehicle can't deposit and carry.

Disclosure of Invention

In order to solve the technical problem, the application provides a child tricycle interlock beta structure, has convenient to use, is convenient for fold and deposits and the advantage of transportation.

In order to achieve the purpose, the technical scheme of the invention is as follows:

child's tricycle interlock beta structure includes: a base assembly; the base assembly is provided with a transmission shaft assembly connected with the rear wheel support assembly, the transmission shaft assembly is connected with the front wheel support assembly through a vehicle head connecting piece, and the front wheel support assembly can drive the vehicle head connecting piece to drive the transmission shaft assembly and enable the rear wheel support assembly connected with the transmission shaft assembly to rotate and fold together when rotating and folding.

According to the technical scheme, the vehicle head front wheel support assembly drives the vehicle head connecting sheet, so that the vehicle head connecting sheet drives the transmission shaft assembly connected with the rear wheel support connecting sheet, and the rear wheel support assembly connected with the transmission shaft assembly rotates and folds together.

As a preferred scheme of this application, locomotive front wheel bracket assembly includes:

the front support is provided with a headstock rotating seat connected with the headstock connecting sheet and the base assembly; and the number of the first and second groups,

the front fork is arranged at the bottom of the front bracket and is rotationally connected with the front bracket, and a front wheel is arranged on the front fork;

and the handlebar is arranged at the top of the front support and is used for controlling the front fork to rotate.

The technical scheme is realized so as to control the steering of the front wheel through the handlebar.

As a preferred aspect of the present application, the base assembly includes:

the front side of the base is provided with a shaft sleeve which is rotationally connected with the headstock rotating seat; and the number of the first and second groups,

the seat plate supporting seat is arranged at the top of the base and connected with the seat plate assembly;

and the push button switch is arranged on one side of the base and is connected with the seat plate component.

Realize above-mentioned technical scheme to it is rotatory that the base passes through axle sleeve and locomotive roating seat, and, be connected with the bedplate subassembly through the bedplate supporting seat, the design that pushes away the button switch mainly is the fixed that is used for the bedplate subassembly.

As a preferred aspect of the present application, the seat pan assembly includes:

the bottom of the bottom plate is provided with a seat plate sleeve which is rotationally connected with the seat plate supporting seat; and the number of the first and second groups,

the backup plate is arranged on one side of the bottom plate, and the upper side of the backup plate is provided with a hand grasping groove.

Realize above-mentioned technical scheme to it is rotatory on the bedplate supporting seat that the bottom plate passes through the bedplate cover, and the groove is grabbed to the hand of design can be used to mentioning of tricycle on the one hand, and on the other hand can be used to be connected with the back subassembly.

As a preferred aspect of the present application, the rear wheel carrier assembly includes: the rear support is arranged on two sides of the base assembly and connected with the transmission shaft assembly, and rear wheels are arranged at the bottom of the rear support.

As a preferable aspect of the present application, the propeller shaft assembly includes:

the rear wheel bracket connecting sheet is connected with the vehicle head connecting sheet; and the number of the first and second groups,

the transmission shaft forks are arranged on two sides of the rear wheel bracket connecting sheet;

the cross shaft is arranged on the transmission shaft fork, and a rear wheel support universal joint fork connected with the rear support is arranged on the cross shaft.

According to the technical scheme, the rear wheel support connecting piece is driven by the vehicle head connecting piece, the transmission shaft fork connected with the rear wheel support connecting piece rotates to drive the rear wheel support universal joint fork connected with the cross shaft, and the rear wheel support assembly connected with the rear wheel support universal joint fork rotates.

A child's tricycle, comprising: child's tricycle and as in above-mentioned technical scheme interlock beta structure, last detachable push rod subassembly that is equipped with of child's tricycle, push rod subassembly includes: the telescopic rod with the handle, the bottom of telescopic rod is equipped with the loop bar, the loop bar with the push rod cover that is equipped with on the base is connected, one side of push rod cover be equipped with the push switch that the loop bar is connected.

Realize above-mentioned technical scheme to the height of adjusting the push rod is in order to satisfy different height crowds' use.

As a preferred aspect of the present application, a foldable backrest assembly is provided on the tricycle for children, the backrest assembly includes:

the backrest is provided with baffle plates on two sides, and the baffle plates are provided with rotating shafts rotatably connected with the backup plate; and the number of the first and second groups,

the push button switch and the buckle are arranged on the back of the backrest and connected with the backup plate and the hand grasping groove.

Realize above-mentioned technical scheme, the back that makes can rotate with the backup plate through the pivot on the baffle of both sides and fold, and the buckle that is equipped with is used for inserting after the back expandes and grabs the groove to keep off the opposite side at the backup plate by pushing away the button switch, make its back after expandeing fixed on the backup plate.

As a preferred aspect of the present application, a rotatably foldable canopy assembly is provided on the backrest, the canopy assembly comprising: a canopy support connected to the backrest; and the tent rod is rotatably connected with the tent bracket.

The technical scheme is realized, so that the tent pole can be folded on the tent bracket, and the tent pole is convenient to store and shade sun.

As a preferred aspect of the present application, the backrest is further provided with a rotatably foldable side armrest assembly, the side armrest assembly comprising: a support rod; and the holding supports are arranged on two sides of the holding rod and are rotationally connected with the baffle, and the holding supports are connected with the inserting grooves arranged on two sides of the holding rod in a plugging and pulling manner through detachable inserting buckles.

Realize above-mentioned technical scheme, on the one hand be convenient for hold up the pole and dismantle from holding up the support to in children get on or off the bus, on the other hand make hold up the support and can rotate folding receipts in back.

In conclusion, the invention has the following beneficial effects:

this application embodiment is through providing children's tricycle interlock beta structure, include: a base assembly; the base assembly is provided with a transmission shaft assembly connected with the rear wheel support assembly, the transmission shaft assembly is connected with the front wheel support assembly through a vehicle head connecting piece, and the front wheel support assembly can drive the vehicle head connecting piece to drive the transmission shaft assembly and enable the rear wheel support assembly connected with the transmission shaft assembly to rotate and fold together when rotating and folding. The tricycle for children can drive the tricycle head connecting piece through the tricycle head front wheel support assembly, so that the tricycle head connecting piece drives the rear wheel support assembly connected with the transmission shaft assembly to rotate together to fold the tricycle frame, and the tricycle is small in size after being folded and convenient to carry and store; when the tricycle is used, the base can be rotated to facilitate nursing of children, the tricycle can be pushed by the designed push rod, the position of the pedal can be adjusted along with growth of the children, and components such as a backrest and the like can be detached.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of a child tricycle according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a child tricycle according to an embodiment of the invention.

FIG. 3 is a partial cross-sectional view of the connection of the base assembly to the seat pan assembly in an embodiment of the present invention.

Fig. 4 is a schematic partial cross-sectional view of the connection of the seat pan assembly and the backrest assembly in an embodiment of the present invention.

FIG. 5 is a schematic partial cross-sectional view of a driveshaft assembly in an embodiment of the invention.

FIG. 6 is an exploded view of an embodiment of the present invention.

Fig. 7 is a schematic view of the rotation of the head bracket assembly and the extension and retraction of the push rod assembly in an embodiment of the present invention.

FIG. 8 is a schematic view of the rotation of the seat plate assembly in accordance with an embodiment of the present invention.

FIG. 9 is a simplified state diagram according to an embodiment of the present invention.

Fig. 10 is a schematic view of a side arm module and a canopy module folded in accordance with an embodiment of the present invention.

Fig. 11 is a schematic view illustrating a folding linkage of the head bracket assembly according to the embodiment of the invention.

FIG. 12 is a schematic view of the folding of the seat back of the bicycle frame in accordance with the embodiment of the present invention.

1. A front wheel bracket assembly of the vehicle head; 101. a front bracket; 102. a headstock rotating seat; 103. a front fork; 104. a front wheel; 105. a handlebar; 2. a base assembly; 201. a base; 202. a shaft sleeve; 203. a seat plate supporting seat; 204. a push rod sleeve; 205. a push switch; 3. a seat pan assembly; 301. a base plate; 302. a seat plate sleeve; 303. a backup plate; 304. a hand grasping groove; 4. a rear wheel carrier assembly; 401. a rear bracket; 402. a rear wheel; 5. a driveshaft assembly; 501. a rear wheel bracket connecting sheet; 502. a transmission shaft fork; 503. a cross shaft; 504. a rear wheel carrier yoke; 6. a headstock connecting sheet; 7. a push button switch; 8. a push rod assembly; 801. a telescopic rod; 802. a handle; 803. a loop bar; 9. a backrest assembly; 901. a backrest; 902. a baffle plate; 903. a rotating shaft; 904. buckling; 10. a canopy assembly; 1001. a canopy support; 1002. a canopy rod; 11. a side rail assembly; 111. a support rod; 112. supporting a bracket; 12. a step assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

The interlocking folding structure of a child tricycle, as shown in fig. 1, 2, 3 and 4, includes: base subassembly 2 and the bedplate subassembly 3 of being connected with base subassembly 2, rear wheel bracket component 4 and locomotive front wheel bracket component 1, locomotive front wheel bracket component 1 and the rotatory folding connection of base subassembly 2, base subassembly 2 is equipped with the transmission shaft subassembly 5 of being connected with rear wheel bracket component 4, transmission shaft subassembly 5 passes through locomotive connection piece 6 and is connected with locomotive front wheel bracket component 1, locomotive front wheel bracket component 1 can be when rotatory folding, drive 6 drive transmission shaft subassemblies 5 of locomotive connection piece, make rear wheel bracket component 4 that transmission shaft subassembly 5 is connected rotate folding together. In this embodiment, the front wheel bracket assembly 1 drives the front wheel connecting piece 6, so that the front wheel connecting piece 6 drives the rear wheel bracket assembly 4 connected with the transmission shaft assembly 5 to rotate together and fold on the upper and lower sides of the base assembly 2.

In this embodiment, the front wheel bracket assembly 1 includes a front bracket 101, a front rotating seat 102 connected to the front connecting plate 6 and the base assembly 2 is disposed on one side of the front bracket 101, a front fork 103 is disposed at the bottom of the front bracket 101, a front wheel 104 is mounted on the front fork 103, a handle bar 105 connected to the front fork 103 is disposed at the top of the front bracket 101, and the handle bar 105 can be used to control the steering of the vehicle.

In the present embodiment, referring to fig. 1 and 3, the base assembly 2 includes a base 201, a shaft sleeve 202 rotatably connected to the head swing seat 102 is disposed at a front side of the base 201, a seat plate supporting seat 203 connected to the seat plate assembly 3 is disposed at a top portion of the base 201, a push button switch 7 connected to the seat plate assembly 3 is disposed in the seat plate supporting seat 203, and the push button switch 7 is disposed at one side of the base 201 for locking the seat plate assembly 3 on the seat plate supporting seat 203.

In this embodiment, referring to fig. 3, 4 and 8, the seat plate assembly 3 comprises a bottom plate 301 and a back plate 303 disposed on the bottom plate 301 for mounting the backrest assembly 9, in order to lift the tricycle, a hand-holding groove 304 is disposed on the back plate 303, and a seat plate cover 302 rotatably connected to the seat plate support base 203 is disposed at the bottom of the bottom plate 301, so that the bottom plate 301 rotates on the base 201 to turn the user to the caregiver side, thereby facilitating better caring for the user. In other embodiments, the base plate 301 may be directly secured to the base 201.

In this embodiment, referring to fig. 5, the transmission shaft assembly 5 includes a rear wheel support connecting piece 501 connected to the head connecting piece 6 and a transmission shaft fork 502 disposed on two sides of the rear wheel support connecting piece 501, a cross-axle 503 is disposed on the transmission shaft fork 502, and a rear wheel support universal joint fork 504 connected to the rear wheel support assembly 4 is disposed on the cross-axle 503, so that the head connecting piece 6 drives the rear wheel support connecting piece 501, the transmission shaft fork 52 connected to the rear wheel support connecting piece 501 rotates to drive the rear wheel support universal joint fork 504 connected to the cross-axle 503, and the rear wheel support assembly 4 connected to the rear wheel support universal joint fork 504 rotates.

In this embodiment, referring to fig. 1 and 6, the rear wheel support assembly 4 includes a rear support 401 disposed on both sides of the base assembly 2 and connected to the transmission shaft assembly 5, rear wheels 402 are disposed on the bottom of the rear support 401, and one of the rear wheels 402 has a brake to fix the rear wheel 402 so that it is not easy to slide when parking. In other embodiments, both rear wheels 402 are provided with brakes.

Example two

A child tricycle is shown by referring to fig. 1 and 3 and comprises a child tricycle and a linkage folding structure according to the first embodiment, a push rod sleeve 204 is arranged on the rear side of a base 201 of the child tricycle, the push rod sleeve 204 is used for installing a push rod assembly 8, a press switch 205 used for locking the push rod assembly 8 is arranged on one side of the push rod sleeve 204, the push rod assembly 8 is conveniently locked in the push rod sleeve 204 and is conveniently detached after being unlocked, a telescopic rod 801 with a handle 802 is adopted for the push rod assembly 8, a sleeve rod 803 is arranged at the bottom of the telescopic rod 801, the sleeve rod 803 is connected with the push rod sleeve 204 arranged on the base 201 and is locked by the press switch, and therefore the using height of people with different heights can be conveniently adjusted through the telescopic rod.

In this embodiment, referring to fig. 4, a foldable backrest assembly 9 is disposed on a backrest 303 of a tricycle for children, the backrest assembly 9 includes a backrest 901, two sides of the backrest 901 are provided with a baffle 902, the baffle 902 is provided with a rotating shaft 903 rotatably connected to the backrest 303, and a push button switch 7 and a buckle 904 which are disposed on a back surface of the backrest 901 and connected to the backrest 303 and the hand grasping groove 304, so that the backrest can be rotatably folded with the backrest through the rotating shaft on the two side baffles 902, and the buckle is provided for inserting the backrest into the hand grasping groove after the backrest is unfolded, and is blocked at the other side of the backrest by the push button switch, so that the unfolded backrest is fixed on the backrest. In other embodiments, the backrest module 9 may not be provided.

In the present embodiment, referring to fig. 4 and 8, the backrest 901 is provided with a rotatably foldable canopy assembly 10, and the canopy assembly 10 includes a canopy support 1001 connected to the backrest 901 and a canopy rod 1002 rotatably connected to the canopy support 1001. So that the canopy rod 1002 can be folded over the canopy brace 1001 for storage and shade.

In this embodiment, referring to fig. 4 and 7, a rotatable and foldable side armrest assembly 11 is further disposed on the backrest 901, the side armrest assembly 11 includes a handrail 111 and a handrail bracket 112 disposed on two sides of the handrail 111 and rotatably connected to the baffle 902, and the handrail bracket 112 is connected to a slot disposed on two sides of the handrail 111 through a detachable plug-in buckle in a plug-in manner. So that the holding rod 111 can be detached from the holding frame 112, the child can get on or off the chair, and the holding frame 112 can be folded and folded on the backrest.

In the present embodiment, referring to FIG. 1, the front wheel 104 is provided with a footrest assembly 12. In other embodiments, the base assembly 1 is provided with a footrest assembly 12 adjacent the underside of the front wheel 104. So as to adjust and select the pedal assembly 12 with different positions according to the height of the child, and the pedal assembly 12 mainly comprises a pedal and a rotating shaft.

In this embodiment, the frame has two positions for mounting the footrest assembly 12, and different positions can be used according to the height of the child, as shown in FIG. 1; the push rod assembly 8 has a plurality of gears which can be adjusted in height, and the push rod assembly 8 can also be rotated to control the direction, and the push rod assembly 8 can also be detached when not used, as shown in fig. 7 and 9; the seat board component 3 can rotate on the base component 2 for 360 degrees and can be turned to face the caregiver, so that the child can be better cared, as shown in fig. 8; when the child grows up, the push rod assembly 8, the backrest assembly 9, the side armrest assembly 11 and the tent assembly 10 can be detached to be in a simple and convenient state, so that the child can play conveniently, as shown in fig. 9; in addition, the side arm assemblies 11 can rotate upward at a certain angle on the backrest assembly 9, and two damping limit positions are arranged inside the backrest assembly, so that the backrest assembly can be adjusted according to the use requirement, and the canopy assembly 10 can adjust the angle of the front canopy rod 1002 and the rear canopy rod 1002 according to the requirement, as shown in fig. 10.

Frame interlock folding structure principle: as shown in fig. 11 and 12, after the locking between the front wheel bracket assembly 1 and the base assembly 2 is released, the front wheel bracket assembly 1 is pushed backward, the front wheel bracket assembly 1 is rotated to drive the front wheel connecting piece 6, the front wheel connecting piece 6 drives the rear wheel bracket connecting piece 501, the transmission shaft fork 502 connected to the rear wheel bracket connecting piece 501 is rotated to drive the rear wheel bracket universal joint fork 504 connected to the cross shaft 503, the rear wheel bracket assembly 4 connected to the rear wheel bracket universal joint fork 504 is rotated and folded along the inclined plane of the base assembly 2, because the rear wheel bracket assembly 4 is folded along the inclined plane of the base assembly 2, the rear wheel bracket assembly 4 is folded inward and is parallel to the base assembly 2, and finally the backrest assembly 9 is folded.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Child's tricycle interlock beta structure includes: a base assembly (2); and the seat plate assembly (3), the rear wheel support assembly (4) and the head front wheel support assembly (1) are connected with the base assembly (2), the head front wheel support assembly (1) is connected with the base assembly (2) in a rotating and folding mode, the base assembly (2) is provided with a transmission shaft assembly (5) connected with the rear wheel support assembly (4), the transmission shaft assembly (5) is connected with the head front wheel support assembly (1) through a head connecting piece (6), and the head front wheel support assembly (1) can drive the transmission shaft assembly (5) through the head connecting piece (6) when rotating and folding, so that the rear wheel support assembly (4) connected with the transmission shaft assembly (5) is rotated and folded together.

2. The linkage folding structure for children's tricycle according to claim 1, wherein the head front wheel support assembly (1) comprises:

the front support (101), the front support (101) is provided with a headstock rotating seat (102) connected with the headstock connecting sheet (6) and the base component (2); and the number of the first and second groups,

the front fork (103) is arranged at the bottom of the front bracket (101) and is rotationally connected with the front bracket (101), and a front wheel (104) is arranged on the front fork (103);

and the handlebar (105) is arranged at the top of the front bracket (101) and is used for controlling the front fork (103) to rotate.

3. The linkage folding structure for children's tricycle according to claim 2, characterized in that the base assembly (2) comprises:

the front side of the base (201) is provided with a shaft sleeve (202) which is rotatably connected with the headstock rotating seat (102); and the number of the first and second groups,

the seat plate supporting seat (203) is arranged at the top of the base (201) and connected with the seat plate assembly (3);

the push button switch (7) is arranged on one side of the base (201) and is connected with the seat plate component (3).

4. The linkage folding structure for children's tricycle according to claim 3, wherein the seat plate assembly (3) comprises:

the bottom of the bottom plate (301) is provided with a seat plate sleeve (302) which is rotationally connected with the seat plate supporting seat (203); and the number of the first and second groups,

the backup plate (303) is arranged on one side of the bottom plate (301), and a hand-grasping groove (304) is formed in the upper side of the backup plate (303).

5. The linkage folding structure for children's tricycle according to claim 1, wherein the rear wheel support assembly (4) comprises: the rear support (401) is arranged on two sides of the base assembly (2) and connected with the transmission shaft assembly (5), and rear wheels (402) are arranged at the bottom of the rear support (401).

6. The linkage folding structure for children's tricycle according to claim 5, characterized in that the transmission shaft assembly (5) comprises:

a rear wheel bracket connecting sheet (501) connected with the vehicle head connecting sheet (6); and the number of the first and second groups,

the transmission shaft forks (502) are arranged on two sides of the rear wheel bracket connecting sheet (501);

the universal joint pin (503) is arranged on the transmission shaft fork (502), and a rear wheel support universal joint fork (504) connected with the rear support (401) is arranged on the universal joint pin (503).

7. A child tricycle, comprising: child tricycle and linkage folding structure according to any of claims 1-6, provided with a detachable push rod assembly (8), the push rod assembly (8) comprising: the telescopic rod (801) with the handle (802), the bottom of the telescopic rod (801) is provided with a loop bar (802), the loop bar (802) is connected with a push rod sleeve (204) arranged on the base (201), and one side of the push rod sleeve (204) is provided with a press switch (205) connected with the loop bar (802).

8. A children's tricycle according to claim 7, characterized in that it is provided with a foldable backrest assembly (9), the backrest assembly (9) comprising:

the backrest (901), two sides of the backrest (901) are provided with baffles (902), and the baffles (902) are provided with rotating shafts (903) rotatably connected with the backup plate (303); and the number of the first and second groups,

the push button switch (7) and the buckle (904) are arranged on the back of the backrest (901) and connected with the backup plate (303) and the hand grasping groove (304).

9. The tricycle as claimed in claim 8, characterised in that the backrest (901) is provided with a rotatably foldable canopy assembly (10), the canopy assembly (10) comprising: a canopy support (1001) connected to the backrest (901); and a canopy rod (1002) rotatably connected to the canopy support (1001).

10. A children's tricycle according to claim 9, characterized in that the backrest (901) is further provided with a rotatably foldable side arm rest assembly (11), the side arm rest assembly (11) comprising: a handrail (111); and the holding support (112) is arranged on two sides of the holding rod (111) and is rotationally connected with the baffle (902), and the holding support (112) is connected with the inserting grooves arranged on two sides of the holding rod (111) in a plugging and pulling manner through detachable inserting buckles.