CN201037006Y

CN201037006Y - Handcart frame folding structure for baby carriage

Info

Publication number: CN201037006Y
Application number: CNU200720049444XU
Authority: CN
Inventors: 何云峰
Original assignee: ZHONGSHAN LEMEIDA DAILY NECESSITIES CO Ltd
Current assignee: ZHONGSHAN LEMEIDA DAILY NECESSITIES CO Ltd
Priority date: 2007-03-21
Filing date: 2007-03-21
Publication date: 2008-03-19
Anticipated expiration: 2017-03-21

Abstract

The utility model discloses a folding structure for a hand frame of a baby car, comprising a pin joint base arranged between an upper frame and a lower frame; the utility model is characterized in that the pin joint base comprises an upper pin joint part fixed on the lower end of the upper frame and a lower pin joint part fixed on the upper end of the lower frame; the upper pin joint part is provided with an axis, a pulling wheel and a gear are encased in and connected with the axis and can move on the axis along the axial direction, the pulling wheel is also provided with a bracing wire which can drive the pulling wheel to rotate; the inner circumference of a first inner cavity of the upper pin joint part is provided with a first inner gear ring which is provided with inclined steps and can hold the gear; the outer wall of the pulling wheel is provided with a push-hold surface matching with the inclined steps; the lower pin joint part is provided with a second inner gear ring which can hold the gear; an elastic piece is arranged between the lower pin joint part and the gear. The utility model has the advantages of simple structure, convenient assembly and easy and smooth fold.

Description

A kind of hand push frame folding structure of perambulator

[technical field]

The utility model relates to a kind of hand push frame folding structure of perambulator.

[background technology]

General carrying baby's perambulator, usually be formed by connecting with the rod member that articulates each other, on perambulator, be provided with a releasing mechanism, utilize releasing mechanism control one joint set that is arranged between rod member, and by the release and the snap close of the latching device in the middle of the joint set, thereby the control perambulator launches to take for the baby, and folding gets up to be convenient for people to collection or transportation.The hand push frame great majority of existing perambulator are to adopt connecting rod assembly, the cooresponding complexity of this structure, not only cooresponding difficulty and formality are also very loaded down with trivial details in assembling, and because the rod member of its formation is quite a lot of, therefore cause the relative increase of single-piece skeleton weight, the user is comparatively heavy when moving, and the poor effect of interlock during folding, also causes the problem that has some setbacks when folding easily.

[summary of the invention]

The purpose of this utility model is to overcome the weak point of present technology, provides a kind of simple in structure, easy to assembly, folding hand push frame easy, perambulator smoothly folding structure.

The purpose of this utility model is achieved in that

A kind of hand push frame folding structure of perambulator, it comprise be arranged on push away frame and push away down pivot connecting seat between the frame, it is characterized in that described pivot connecting seat comprises and be fixed on the last articulated section that pushes away the frame lower end and be fixed on down the following articulated section that pushes away on the frame that it also comprises:

The described articulated section of going up is provided with axle, be socketed with on the axle can be on axle axially movable pulling wheel and gear, on the pulling wheel, also be connected with the backguy that can drive its rotation, first inner chamber on the last pivot connecting seat be provided with tilt stage and can be interior week for first internally toothed annulus of gear clip, be provided with the face of pulling that pushes away that matches with tilt stage at the outer wall of pulling wheel;

Described articulated section down is provided with can be for second internally toothed annulus of gear clip;

Be provided with elastic component between described articulated section down and the gear.

The hand push frame folding structure of aforesaid a kind of perambulator is characterized in that the tooth on the described gear is a distribution or asymmetrical distribution, and adapts with the first tooth internally toothed annulus, and the gear and first internally toothed annulus have only an insertable position.

The hand push frame folding structure of aforesaid a kind of perambulator is characterized in that, described go up the articulated section be provided with on push away connecting portion on the frame bonded assembly.

The hand push frame folding structure of aforesaid a kind of perambulator is characterized in that, following articulated section be provided with under push away connecting portion under the frame bonded assembly.

The hand push frame folding structure of aforesaid a kind of perambulator is characterized in that described elastic component is a spring.

The hand push frame folding structure of aforesaid a kind of perambulator is characterized in that, describedly goes up the articulated section and the contacted side in following articulated section is provided with first limiting stopper on last articulated section, descend the articulated section be provided with can with first limiting stopper, second limiting stopper of clip mutually.

The hand push frame folding structure of aforesaid a kind of perambulator is characterized in that, also is provided with follower in the described following articulated section.

The hand push frame folding structure of aforesaid a kind of perambulator is characterized in that, described axle is provided with a symmetrically arranged pushing block; The central authorities of described follower are provided with the axle sleeve that can insert axle, are provided with the fixture block that a symmetry is provided with and matches with pushing block in the axle sleeve.

The hand push frame folding structure of aforesaid a kind of perambulator is characterized in that, also is connected with second backguy on the described follower.

The hand push frame of the utility model perambulator be by on push away frame with under push away frame and utilize a pivot connecting seat to make it to articulate into a joint, and articulate the joint that can be fixed into a straight tube or pivot bending, pivot connecting seat comprises and is fixed on the last articulated section that pushes away the frame lower end and is fixed on down the following articulated section that pushes away on the frame, clip in the gear grooved of last articulated section and following articulated section inwall has holding piece, clip by control holding piece and last articulated section, thereby the folding of control hand push frame, not only simple in structure, easy to assembly, and folding is easy, smooth and easy.

[description of drawings]

Fig. 1 is the lateral plan of the utility model perambulator;

Fig. 2 is a block diagram of the present utility model;

Fig. 3 is one of structure exploded view of the present utility model (saving spring);

Fig. 4 is articulated section and the last revolving wheel structural representation gone up of the present utility model;

Fig. 5 is two of a structure exploded view of the present utility model;

Fig. 6 is three (saving spring) of structure exploded view of the present utility model.

The figure number explanation

Push away frame 21 on the hand push frame 2

Under push away frame 22 pivot connecting seats 3

4 times articulated sections 6, last articulated section

Last connecting portion 41 first inner chambers 51

Axle 58 pulling wheels 53

Gear 8 backguys 54

Tilt stage 55 first internally toothed annuluss 56

Push away 57 times connecting portions 61 of the face of pulling

Second inner chamber, 62 second internally toothed annuluss 74

Elastic component 100 pushing blocks 59

Follower 71 second backguys 9

Axle sleeve 72 fixture blocks 73

First limiting stopper, 42 second limiting stoppers 62

[specific embodiment]

As shown in Figure 1, a kind of hand push frame folding structure of perambulator, it is applied on the hand push frame 2 of perambulator, it comprise be arranged on push away frame 21 and push away down pivot connecting seat 3 between the frame 22, pivot connecting seat 3 can with on push away frame 21 and down push away frame 22 and articulate the joint that can be fixed into a straight tube or pivot bending, described pivot connecting seat 3 comprises and is fixed on the last articulated section 4 that pushes away frame 21 lower ends and is fixed on down the following articulated section 6 that pushes away frame 22 upper ends.

As Fig. 3,4, shown in 5, last articulated section 4 be provided with on push away connecting portion 41 on frame 21 bonded assemblys, easy to connect for cooperating with the hand push frame 21 of perambulator, last connecting portion 41 can be to be a tubular structure, last articulated section 4 is provided with first inner chamber 51, central authorities at first inner chamber 51 also are provided with axle 58, its axis 58 is one of the forming with last articulated section 4, be socketed with can be on axle 58 axially movable pulling wheel 53 and gear 8 on the axle 58, be connected with the backguy 54 that can drive its rotation on the pulling wheel 53, in the present embodiment, backguy 54 is on pulling wheel 53, and backguy can be a metal wool.First internally toothed annulus 56 that is provided with tilt stage 55 interior week and can supplies gear 8 to snap in of first inner chamber 51 is provided with the face of pulling 57 that pushes away that matches with tilt stage 55 at the outer wall that spurs wheel 53.Described down articulated section 6 be provided with under push away connecting portion 61 under the frame bonded assembly, be provided with second inner chamber 62 on the articulated section 6 down, in second inner chamber 62, be provided with second internally toothed annulus 74 identical week with first internally toothed annulus 56, described gear 8 is stuck in first internally toothed annulus 56 and second internally toothed annulus 74, tooth on the gear 8 is a distribution or asymmetrical distribution, tooth pitch between tooth and the tooth is unequal, tooth big or small unequal, and gear 8 has only the position that can insert mutually with first internally toothed annulus 56 and second internally toothed annulus 74.When pulling wheel 53 is rotated by backguy 54 pullings, because pushing away mutually with the tilt stage 55 of the inwall of last pivot connecting seat 5, the face of pulling 57 that pushes away on the outer wall of pulling wheel 53 pulls, make pulling wheel 53 while rotating to moving away from last articulated section 4, break away from first internally toothed annulus 56 thereby promote gear 8, be inserted into second internally toothed annulus 74 fully.

One elastic component 100, in the utility model, this elastic component 100 is a spring, it is arranged on down between articulated section 6 and the gear 8, resets but its role is to driven gear 8.

Last articulated section 4 and following articulated section 6 contacted sides are provided with first limiting stopper 42 on last articulated section 4, be provided with in following articulated section 6 can with first limiting stopper 42, second limiting stopper 62 of clip mutually, can make and push away frame 21 in the restriction when pushing away frame 21 and rotating foldings and rotate once more, reach position-limiting action, like this, can make gear 8 easier first inner chambers 51 that enter articulated section 4, make down push away frame 22 with on push away frame 21 and be fixed on expanded position.

Principle of work of the present utility model is: the handle position at hand push frame 2 can be provided with a control mechanism, control mechanism can spur the backguy 54 that is connected pulling wheel 53, thereby drive 53 rotations of pulling wheel, pulling wheel 53 is moved downward articulated section 6 while rotating, and make gear 8 break away from the clip of first internally toothed annulus 56, and be inserted into down fully in second internally toothed annulus 74 of articulated section 6, make to push away the clip that frame 21 can not be subjected to gear 8, thereby make to push away frame 21 and can rotate, realize the folding of hand push frame 2.In the time will launching the hand push frame, the operation control mechanism unclamps backguy 54, and push away frame 21 on rotating, turn to make push away frame with under push away frame on same straight line the time, gear 8 resets under the effect of spring, and make gear 8 snap onto first internally toothed annulus 56 again, this moment, one end of gear 8 snapped in first internally toothed annulus 56, the other end snaps in second internally toothed annulus 74, articulated section 4 and following articulated section 6 can not be rotated again, because the tooth on the gear 8 is a distribution or asymmetrical distribution, the gear 8 and first internally toothed annulus 56 have only an insertable position, after making that gear 8 breaks away from the clip of first internally toothed annulus 56, only get back to an ad-hoc location gear 8 is inserted in first internally toothed annulus 56 again, just make down push away frame 22 and on push away frame 21 and be fixed on expanded position.

The utility model for further folding perambulator, also is provided with a symmetrically arranged pushing block 59 on axle 58 behind the hand push frame of folding perambulator, also being provided with follower 71 in the articulated section 6 down, also be connected with second backguy 9 on follower 71.Be provided with the axle sleeve 72 that can insert axle 58 in the central authorities of follower 71, be provided with in the axle sleeve 72 that a symmetry is provided with and with the fixture block 73 that matches of pushing block 59, when axle 58 rotates to certain angle, can make pushing block 59 engage the rotation of drive follower with fixture block 73.

On push away frame 21 and rotate foldings behind certain angle, when pushing away frame 21 on this and rotate again, owing on follower 71, also be connected with second backguy 9, also just can spur second backguy 9, thereby spur second backguy 9 and can control other joint folding further on the perambulator, to be convenient for people to collection or transportation.

Claims

1. the hand push frame folding structure of a perambulator, it comprise be arranged on push away frame (21) and push away down pivot connecting seat (3) between the frame (22), it is characterized in that, described pivot connecting seat (3) comprises and is fixed on the last articulated section (4) that pushes away frame (21) lower end and is fixed on down the following articulated section (6) that pushes away frame (22) upper end that it also comprises:

The described articulated section (4) of going up is provided with axle (58), being socketed with on axle (58) can be at axle 58) go up axially movable pulling wheel (53) and gear (8), on pulling wheel (53), also be connected with the backguy (54) that can drive its rotation, being provided with tilt stage (55) interior week and can supplying first internally toothed annulus (56) of gear (8) clip of first inner chamber (51) on the last pivot connecting seat (5) is provided with the face of pulling (57) that pushes away that matches with tilt stage (55) at the outer wall of pulling wheel (53);

Described articulated section (6) down is provided with second internally toothed annulus (74) that can supply gear (8) clip;

Be provided with elastic component (100) between described articulated section (6) down and the gear (8).

2. the hand push frame folding structure of a kind of perambulator according to claim 1, it is characterized in that, tooth on the described gear (8) is a distribution or asymmetrical distribution, and adapts with the first tooth internally toothed annulus (56), and gear (8) has only an insertable position with first internally toothed annulus (56).

3. the hand push frame folding structure of a kind of perambulator according to claim 1 and 2 is characterized in that, described go up articulated section (4) be provided with on push away connecting portion (41) on frame (21) bonded assembly.

4. the hand push frame folding structure of a kind of perambulator according to claim 1 and 2 is characterized in that, following articulated section (6) be provided with under push away connecting portion (61) under frame (22) bonded assembly.

5. the hand push frame folding structure of a kind of perambulator according to claim 1 and 2 is characterized in that, described elastic component (100) is a spring.

6. the hand push frame folding structure of a kind of perambulator according to claim 1 and 2, it is characterized in that, describedly go up articulated section (4) and the contacted side in following articulated section (6) is provided with first limiting stopper (42) on last articulated section (4), descend articulated section (6) be provided with can with first limiting stopper (42), second limiting stopper (62) of clip mutually.

7. the hand push frame folding structure of a kind of perambulator according to claim 1 is characterized in that, also is provided with follower (71) in the described following articulated section (6).

8. the hand push frame folding structure of a kind of perambulator according to claim 7 is characterized in that, described axle (58) is provided with a symmetrically arranged pushing block (59); The central authorities of described follower (71) are provided with the axle sleeve (72) that can insert axle (58), are provided with the fixture block 73 that a symmetry is provided with and matches with pushing block (59) in the axle sleeve (72)).

9. according to the hand push frame folding structure of claim 7 or 8 described a kind of perambulators, it is characterized in that, also be connected with second backguy (9) on the described follower (71).