CN202414068U

CN202414068U - Folding baby trailer frame structure

Info

Publication number: CN202414068U
Application number: CN2011205414518U
Authority: CN
Inventors: 刘哲纲
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-21
Filing date: 2011-12-21
Publication date: 2012-09-05
Anticipated expiration: 2021-12-21

Abstract

The utility model discloses a folding baby trailer frame structure. A trailer frame can be folded for collecting, and the width and distance of an underframe of the trailer frame can be shrunken and adjusted so as to save the volume of timber; because a front supporting rod and a rear supporting rod of the underframe are respectively a telescopic pipe body which is formed by connecting a two-section inner casing pipe with an outer pipe in a sleeving mode, when an operation of telescopic adjusting is performed, the operation is simpler and rapider; in addition, the inner casing pipe and the other side of the outer pipe of the rear supporting rod of the underframe are respectively connected to and fixed at the bottoms of the rear sections of left and right side rods of the underframe, so that the structural strengths of the rear sections of the left and right side rods can be relatively increased, and then wheels can be directly pivoted in pivoted grooves at the rear sections of the left and right side rods of the underframe, therefore, the folding baby trailer frame structure relatively has an advantage that a wheel carrier for being pivoted with the wheels is not required to be additionally assembled and provided, and then materials, the labor and the stem volume are also can be saved; and compared with the position of a rear supporting rod of a trailer frame used in the prior art, the position of the rear supporting rod of the underframe disclosed by the utility model further moves forwards, relatively, after the trailer frame is folded for collecting, more stem volume can be saved, thereby facilitating the collection, storage, packaging or transportation operation of the structure.

Description

Foldable baby towing carriage structure

Technical field

The utility model is meant a kind of Foldable baby towing carriage structure.

Background technology

Press, same contriver is in the U.S. the 7th, 341; No. 265 patents are to have disclosed Foldable stroller towing carriage structure, and it is to can be rated as practicality, and is as shown in Figure 1; Only through the forward and backward

pole

81,82 of looking into its underframe 8 when stretching adjustment need to the setting element at four positions for example

elastic positioning pin

91,92,93,94 operations discharge and just can adjust; Dislike inconvenience slightly, in addition because the left and right two ends 821 of back stay 82 are connected in the two ends at left and right side lever 83,84 rears, therefore folding fold completion after; Though whole underframe 8 left and right width distance are obviously dwindled; But forward and backward

pole

81,82 forward and backward distance each other still accounts for the bigger volume of timber, moreover the rear of left and right side lever 83,84 can not directly articulate

wheel

87,88; Need to weld or assemble a wheel carrier in addition respectively and establish

wheel

87,88 for 85,86 groups, increase material and tooling cost virtually.

The utility model content

In view of this this creator is, more perfect Foldable baby towing carriage structure is provided through constantly studying and improveing.

Be that main purpose with the utility model is to be to provide a kind of Foldable baby towing carriage structure; When desire is folding when folding; Can be respectively except first support of two upper brackets fold to the underframe direction again to second support is folding earlier; And the collapsible adjustment width distance of underframe is to save beyond the volume of timber, because therefore inner sleeve that front support rod and the back stay of this underframe are all two-segment type and the scalable body that the outer tube socket constitutes are operated easier to be quick when flexible the adjustment.

A time purpose of the utility model is to be to provide a kind of Foldable baby towing carriage structure; The inner sleeve of the back stay of its underframe and the opposite side of outer tube also are connected and fixed on the left and right side lever back segment bottom of this underframe respectively; Can increase the structural strength of the left and right side lever back segment of underframe relatively; And then can be directly articulate wheel at the pivot groove of the left and right side lever back segment of this underframe; Having does not relatively need to organize in addition to establish the advantage that the wheel carrier that articulates wheel is provided, and then also has the effect of material-saving, saving of labor and province's volume of timber.

A purpose again of the utility model is to be to provide a kind of Foldable baby towing carriage structure; The utility model towing carriage is compared to the back stay position of the used towing carriage of prior art; Move more forward the back stay position of the utility model underframe, can further save the volume of timber after relatively also making that towing carriage is folding and folding and be convenient to collect, store, packing or hauling operation.

A kind of Foldable baby towing carriage structure includes:

Underframe; The left and right side lever that has forward and backward pole and be connected in forward and backward pole and arranged on left and right sides; The bottom, front side of its right side side lever is connected with a pivot connecting seat, and the set pivot of this pivot connecting seat hole can borrow a side of pivot and trailer bar to articulate, and this pivot connecting seat front side has the prelocalization hole in addition; Its rear side then has back knock hole; The trailer bar that this pivot connecting seat articulates can be selected to pivot forward and be deployed condition, and the prelocalization hole of borrowing setting elements such as a positioning rod or latch to pass this trailer bar and this pivot connecting seat, and borrows the front side of this trailer bar to be connected with the predetermined position of bicycle; The trailer bar that this aforementioned pivot connecting seat articulated also can pivot backward and fold, and borrows setting elements such as radius stay or latch to wear the back knock hole and the trailer bar of this pivot connecting seat;

Two upper brackets; Be slightly to be the ㄇ body, the both sides, front and back of this two upper brackets below then articulate with underframe respectively, and the upper bracket top wherein of this two upper bracket is to be installed with a connection piece; This attaching parts then has draw-in groove; In addition this two upper bracket each forms by folding first support and second support, wherein both sides, the top pivot joint of the pivot and second support is borrowed in the both sides, below of each first support, and respectively second support also respectively sets firmly a spacer and outwards pivots to prevent first support;

Cross tube is to be located between the two upper brackets tops, and is connected with two upper brackets or separates;

It is characterized in that:

The front support rod of this underframe and back stay are all the body of two-segment type and form; Wherein this front support rod comprises an inner sleeve and an outer tube socket and constitutes; This inner sleeve can be inserted in the relative side of outer tube by one of which side correspondence; And a side of this inner sleeve has a knock hole, and the relative side of this outer tube has knock hole, fixes to borrow setting element; And back stay also comprises an inner sleeve and an outer tube socket and constitutes; This inner sleeve can be inserted in the relative side of outer tube by one of which side correspondence, and a side of this inner sleeve has a knock hole, and the relative side of this outer tube has knock hole; Fix to borrow setting element; The side pipe that the opposite side of the inner sleeve of this back stay and the opposite side of outer tube further have the left and right side lever back segment bottom that is positioned at this underframe is respectively fixed to borrow lock member or to be connected with the left and right side lever bottom of this underframe with welding manner, can increase the intensity of the left and right side lever back segment structure of this underframe, so the back segment of this left and right side lever corresponding to the side pipe of the inner sleeve of back stay above the position and corresponding to the side pipe of the outer tube of back stay above the position respectively be provided with the pivot groove with respectively by means of the pivot connecting element wheel that is pivoted.

Moreover the inner sleeve of the front support rod of this underframe and the setting element of outer tube can be elastic positioning pin or screw, nut and pad or the latch of being located at inner sleeve.

Person in addition, the inner sleeve of the back stay of this underframe and the setting element of outer tube can be elastic positioning pin or screw, nut and pad or the latch of being located at inner sleeve.

A kind of Foldable baby towing carriage structure of the utility model; The front support rod of its underframe and back stay be two-segment type scalable adjustment body with more simply and easily the adjustment; And the both sides of back stay can increase the intensity of underframe two side lever back segments again; Make two side levers can directly articulate wheel, not only saving of labor, material-saving, and can further save the volume of timber after folding and be convenient to collect, store, packing or hauling operation.

Now cooperate graphic in detail the explanation as after.

Description of drawings

Fig. 1 is the block diagram of the used Foldable baby towing carriage of prior art structure.

Fig. 2 is the block diagram of the utility model embodiment.

Fig. 3 is another angle block diagram of the utility model embodiment.

Fig. 4 is the inside and second support folded state block diagram of first support of another upper bracket of the utility model embodiment.

Fig. 5 inwardly folds the block diagram after underframe folds again with second support for first support of another upper bracket of the utility model embodiment.

Fig. 6 is the inwardly folding and block diagram after underframe folds for the utility model embodiment two upper brackets.

Fig. 7 folds the block diagram after completion and the underframe adjustment shortening width distance for the utility model embodiment is folding.

Wherein the inner sleeve of underframe front support rod and the setting element of outer tube are the part compound section enlarged drawing of elastic positioning pin to Fig. 8 for the utility model embodiment.

Wherein the inner sleeve of underframe back stay and the setting element of outer tube are the part compound section enlarged drawing of elastic positioning pin to Fig. 9 for the utility model embodiment.

Wherein the inner sleeve of underframe front support rod and the setting element of outer tube are the part compound section enlarged drawing of screw, nut and pad to Figure 10 for the utility model embodiment.

Wherein the inner sleeve of underframe back stay and the setting element of outer tube are the part compound section enlarged drawing of screw, nut and pad to Figure 11 for the utility model embodiment.

The specific embodiment

Like Fig. 2～shown in Figure 9, a kind of Foldable baby towing carriage of the utility model structure includes:

Underframe 1; The left and right side lever 11 that has forward and backward

pole

10,15 and be connected in forward and backward

pole

10,15 and arranged on left and right sides; The bottom, front side of its right side side lever 11 is connected with a pivot connecting seat 13; These pivot connecting seat 13 set pivot holes 130 can borrow a pivot (figure does not show) and a side of trailer bar (figure does not show) to articulate; These pivot connecting seat 13 front sides have prelocalization hole 131 in addition, and its rear side then has back knock hole 132, and the trailer bar that this pivot connecting seat 13 articulates can be selected to pivot forward and be deployed condition; And borrow setting elements such as a positioning rod or latch (figure does not show) to pass the prelocalization hole 131 of this trailer bar and this pivot connecting seat 13; And borrow the front side of this trailer bar to be connected with the predetermined position of bicycle, the trailer bar that this aforementioned pivot connecting seat 13 is articulated also can pivot backward and fold, and borrows setting elements such as radius stay or latch (figure does not show) to wear the back knock hole 132 and trailer bar of this pivot connecting seat 13;

Two

upper brackets

2,3; Be slightly to be the ㄇ body; The both sides, front and back 221,222,321,322 (with reference to figure 2, Fig. 3) of these two upper brackets, 2,3 belows then articulate with underframe 1 respectively; One of them upper bracket 2 top of this two

upper bracket

2,3 are to be installed with a connection piece 7; 7 of this attaching partss have draw-in groove 71; In addition this two

upper bracket

2,3 each form by folding

first support

21,31 and 22,32 on second support, wherein the both sides, below of each

first support

21,31 borrow the pivot 210,310 and the both sides, top of

second support

22,32 to articulate, and respectively

second support

22,32 also respectively sets firmly a spacer 223,323 (with reference to figure 2, Fig. 3) and outwards pivots to prevent

first support

21,31;

Cross tube 4; Be to be located between two upper brackets, 2,3 tops; The one of which side is installed with elastic fastening hook 41 (with reference to figure 4～Fig. 7); Can borrow this elastic fastening hook 41 to be connected (with reference to figure 2, Fig. 3) or to separate (with reference to figure 4, Fig. 5) with draw-in groove 71 inlay cards of one of them upper bracket 2 set attaching parts 7; The opposite side 42 of this cross tube 4 (with reference to figure 4, Fig. 5) then articulates with the articulated section, top 30 of one of them upper bracket 3 of aforementioned two

upper brackets

2,3, and aforesaid in addition cross tube 4 also can change both sides into and all has an elastic fastening hook 41, and the top of aforementioned two

upper brackets

2,3 then can all be provided with attaching parts 7; Make cross tube 4 can borrow the elastic fastening hook 41 of these both sides to be connected or to break away from draw-in groove 71 inlay cards of the set attaching parts 7 in two upper brackets, 2,3 tops; Because this is a known techniques (for example the 7th, 341, No. 265 patent cases are invented by same applicant's the U.S. promptly has detailed explanation) so do not give unnecessary details in addition;

It is characterized in that:

The front support rod 10 and the back stay 15 of this underframe 1 is all the width distance of the body composition of two-segment type for flexible this underframe 1 of adjustment; Wherein this front support rod 10 comprises an inner sleeve 101 and an outer tube 102 sockets and constitutes; This inner sleeve 101 can be inserted in the relative side of outer tube 102 by one of which side correspondence; And a side of this inner sleeve 101 has a knock hole 1011 (with reference to figure 8); And these outer tube 102 relative sides have knock hole 1021; Elastic positioning pin 164 (with reference to figure 8), latch (figure does not show) or screw 161, nut 162 to borrow setting element for example to be located in the inner sleeve 101 are fixed with pad 163 (in addition with reference to Figure 10); And back stay 15 also comprises an inner sleeve 151 and an outer tube 152 sockets and constitutes; This inner sleeve 151 can be inserted in the relative side of outer tube 152 by one of which side correspondence; And a side of this inner sleeve 151 has a knock hole 1511 (with reference to figure 9); And these outer tube 152 relative sides have knock hole 1521; Fix with pads 163 (with reference to Figure 11) for example to be located at inner sleeve 151 interior elastic positioning pin 164 (with reference to figure 9), latch (figure does not show) or screw 161, nuts 162 by means of setting element, the opposite side of the inner sleeve 151 of this back stay 15 is fixed to be connected with left and right side lever 11 bottoms of this underframe 1 by means of lock member 153 or with welding manner with the

side pipe

1512,1522 that the opposite side of outer tube 152 further has the left and right side lever 11 back segments bottom that is positioned at this underframe 1 respectively, can increase the intensity of the left and right side lever 11 back segment structures of this underframe 1; And then the back segment of this left and right side lever 11 corresponding to the side pipe 1512 of the inner sleeve 151 of back stay 15 above the position and corresponding to the side pipe 1522 of the outer tube 152 of back stay 15 above the position respectively be provided with pivot groove 111 to borrow pivot connecting element (figure does not show) wheel that is pivoted (figure does not show) respectively; Easy speech, because

aforementioned side pipe

1512,1522 has increased the structural strength of left and right side lever 11 back segments of underframe 1, thereby the wheel that is pivoted that the set pivot groove 111 of these left and right side lever 11 back segments can be firm;

Composition by aforementioned components; Fold the draw-in groove 71 that Shi Kexian breaks away from the elastic fastening hook 41 of cross tube 4 one sides one of them upper bracket 2 set attaching parts 7 when desire is folding; And make cross tube 4 fold to first support, the 31 directions pivot of this another upper bracket 3; And can inwardly fold (with reference to figure 5) together with this first support 31 with second support 32 folding (in addition with reference to figure 4) and then to underframe 1 direction; With can first support 21 of one of them upper bracket 2 being folded (with reference to figure 5) to underframe 1 again after its second support 2 folds; As long as the convex fastening part 1641 of pushing elastic positioning pin 164 then is (in addition with reference to figure 7～Fig. 9); Make the

knock hole

1021,1521 of its outer tube that breaks away from forward and backward

pole

10,15 102,152 can inner sleeve 101,151 1 sides of forward and backward

pole

10,15 further be stretched and be inserted in (in addition with reference to figure 6) in its outer tube 102,152, significantly dwindling the left and right width distance of underframe 1, and save space after folding relatively and be convenient to packing, transportation with the volume of timber or collect and store; In addition; If the forward and backward pole of aforementioned underframe 1 10,15 borrows screw 161 (in addition with reference to Figure 10, Figure 11), nut 162 to fix with pad 163 or latch (figure does not show); Then as long as dismantle this screw 161, nut 162, pad 163 or latch earlier; Can inner sleeve 101,151 1 sides of forward and backward

support

10,15 further be stretched and be inserted in its outer tube 102,152, and significantly dwindle the left and right of underframe 1 apart from the width and the relative space and the volume of timber that folds of saving.

In sum, this case creation can be concluded and had following enhancement effect:

1. when desire is folding when folding; Can be respectively except

first support

21,31 of two

upper brackets

2,3 fold to underframe 1 direction again to

second support

22,32 is folding earlier; And underframe 1 collapsible adjustment width distance is to save beyond the volume of timber; Owing to front support rod of this underframe 1 10 and back stay 15 are all the inner sleeve 101,151 of two-segment type and the scalable body that outer tube 102,152 sockets constitute; Therefore when flexible adjustment, only need pressing operation two setting elements for example elastic positioning pin 164 can carry out the adjustment of width distance, having the more simple and rapid advantage of flexible adjustment operation relatively.

2. the inner sleeve 151 of the back stay 15 of underframe 1 has the left and right side lever 11 back segments bottom that

side pipe

1512,1522 also is connected and fixed on this underframe 1 respectively respectively with the opposite side of outer tube 152; Can increase the structural strength of underframe 1 left and right side lever 11 back segments relatively; And then can be directly pivot groove 111 be set for articulating wheel (figure does not show) at the back segment of this underframe 1 left and right side lever 11; Having does not relatively need to organize in addition to establish the advantage that the wheel carrier that articulates wheel is provided, and then also has the effect of material-saving, saving of labor and province's volume of timber.

3. the inner sleeve 151 of the back stay 15 of aforementioned underframe 1 and the

side pipe

1512,1522 of outer tube 152 are pivoted the wheel except the structural strength that can the increase underframe 1 left and right side lever 11 back segments pivot groove 111 in order to left and right side lever 11 back segments; Also be connected in back segment but not the rear end of left and right side lever 11 because of two

side pipes

1512,1522 of the inner sleeve of back stay 15 151 and outer tube 152; Compared to the used towing carriage of prior art; Move more forward back stay 15 positions of the utility model underframe 1, therefore further save the volume of timber after also making that towing carriage is folding and folding and be convenient to collect, store, packing or hauling operation.

Claims

1. Foldable baby towing carriage structure includes:

Two upper brackets; Be slightly to be the ㄇ body, the both sides, front and back of this two upper brackets below then articulate with underframe respectively, and the upper bracket top wherein of this two upper bracket is to be installed with a connection piece; This attaching parts then has draw-in groove; In addition this two upper bracket each forms by folding first support and second support, wherein both sides, the top pivot joint of the pivot and second support is borrowed in both sides, each first support below, and respectively second support also respectively sets firmly a spacer and outwards pivots to prevent first support;

It is characterized in that:

2. Foldable baby towing carriage structure as claimed in claim 1 is characterized in that the inner sleeve of the front support rod of this underframe and the setting element of outer tube can be the elastic positioning pin of being located at inner sleeve.

3. Foldable baby towing carriage structure as claimed in claim 1 is characterized in that the inner sleeve of the front support rod of this underframe and the setting element of outer tube can be screw, nut and pad.

4. Foldable baby towing carriage structure as claimed in claim 1 is characterized in that the inner sleeve of the front support rod of this underframe and the setting element of outer tube can be latch.

5. Foldable baby towing carriage structure as claimed in claim 1 is characterized in that the inner sleeve of the back stay of this underframe and the setting element of outer tube can be the elastic positioning pin of being located at inner sleeve.

6. Foldable baby towing carriage structure as claimed in claim 1 is characterized in that the inner sleeve of the back stay of this underframe and the setting element of outer tube can be screw, nut and pad.

7. Foldable baby towing carriage structure as claimed in claim 1 is characterized in that the inner sleeve of the back stay of this underframe and the setting element of outer tube can be latch.