CN104276199A - Stroller support bar structure and stroller with same - Google Patents

Abstract

The invention discloses a stroller support bar structure and a stroller with the same. The support bar structure only comprises a first bottom support bar and a second support bar which are in pivot connection. The support bar structure can be mounted between rear supports of two sides of the stroller, so that horizontal support in left-right direction is provided to the rear supports of the two sides of the stroller during unfolding of a stroller frame to enable the stroller frame to be stably in a unfolding state, and the rear supports of the two sides are driven to be horizontally folded along the left-right direction during folding of the stroller frame. The support bar structure has few bars and is simple to operate, so that rear support bar structures of existing strollers are effectively simplified, cost is reduced, occupied space is small, and design of components such as a backrest and a basket rod on the stroller is facilitated.

Description

A strut structure of a pushcart and a children's pushcart having the same

the

technical field

The invention relates to a strut structure of a stroller and a child stroller with the same.

the

Background technique

In the prior art, in order to make the children's stroller foldable in the left and right directions and make the folded volume smaller, there is usually a strut assembly that can be folded in the left and right directions between the side brackets on both sides of the stroller frame . The brace assembly includes a rear brace assembly arranged between the rear brackets on both sides. On the existing vehicle frame, the rear brace assembly usually adopts a cross brace structure or a rear attachment brace that can realize self-locking when unfolded. Assemblies, but when using these two structures, the number of rods is relatively large, and it is inconvenient to use when the cart is folded and operated. On some existing carts, there are also two struts that can relatively slide along the left and right directions of the cart to support the rear brackets on both sides. When this structural form is used, the strength of the support is poor, which is not conducive to Ensure the stability of the extended state of the cart frame.

the

Contents of the invention

The purpose of the present invention is to overcome the disadvantages of the prior art, and provide a strut structure of a cart with simple structure and convenient operation.

In order to achieve the above object, the technical solution adopted in the present invention is: a strut structure of a cart, the cart includes a first support rod and a second support rod respectively located on the left and right sides, the strut structure includes A first shaft is rotatably connected to a first support rod on the first support rod, and a second support rod is rotatably connected to a second support rod on a second shaft, and the first support rod includes a first Rod, a second rod with one end affixed to the first rod, the second support rod includes a third rod, a fourth rod with one end affixed to the third rod, the other of the second rod One end is pivotally connected to the other end of the fourth rod, the strut structure has an unfolded state and a folded state, when the strut structure is in the unfolded state, the second rod and the fourth rod are fixed to each other and Supported between the first bracket rod and the second bracket rod along the left and right direction, the first rod is fixedly buckled on the first bracket rod, and the third rod is fixedly buckled on the second bracket rod On the two support rods; when the strut structure is in the folded state, the second rod and the fourth rod are relatively rotated and close together, and the strut structure also includes a locking mechanism for locking it in the unfolded state .

Preferably, there is a first fastening part on the first support rod, and a second fastening part on the second support rod. When the strut structure is in the unfolded state, the first rod and the The first fastening part cooperates to be one-way fastened on the first support rod, and the third rod cooperates with the second fastening part to be one-way fastened on the second support rod.

Further, the first rod is provided with a first buckle part, and the third rod is provided with a second buckle part, and when the strut structure is unfolded, the first buckle part engages cooperatively buckled on the first buckle part, and the second buckle part is buckled on the second buckle part cooperatively.

Furthermore, the first fastening part is a first boss fixed on the first support rod, and the second fastening part is a second protrusion fixed on the second support rod. platform, the first buckle part is a first groove with an opening on the first rod, the second buckle part is a second groove with an opening on the third rod, When the strut structure is unfolded, the first groove is correspondingly buckled on the first boss, and the second groove is correspondingly buckled on the second boss.

Further, the distance between the first fastening part on the first support rod and the first axis is greater than zero, and the second fastening part on the second support rod and the first shaft are greater than zero. The spacing between the two axes is also greater than zero.

Preferably, there are angles greater than zero between the first rod and the second rod, and between the third rod and the fourth rod.

Further, the first shaft is arranged at the joint of the first rod and the second rod, and the second shaft is arranged at the joint of the third rod and the fourth rod.

Further, the first strut is L-shaped, and the angle between the first rod and the second rod is 90°; the second strut is L-shaped, and the third rod and the fourth 90° between the rods.

Further, the first rod integrally extends downwards from one end of the second rod, and the third rod integrally extends downwards from one end of the fourth rod. When the strut structure is folded, the The end of the second rod connected to the fourth rod moves upwards to drive the first strut and the second strut to approach each other.

Another object of the present invention is to provide a baby stroller with the above-mentioned strut structure.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A stroller for children, comprising a foldable stroller frame, the stroller frame at least includes a first rear support and a second rear support located on the left and right sides, the first rear support and the second rear support The above-mentioned strut structure is arranged between the brackets.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: the strut structure of the present invention is installed between the rear brackets on both sides of the stroller, and the strut structure can be stably supported on both sides The lateral support along the left and right directions of the cart is provided between the rear brackets on the side, so that the cart frame is stably in the unfolded state. Its operation is simple, the structure is simple, and the number of rods is small, which effectively simplifies the existing cart. The structure of the upper and rear struts reduces the cost and occupies a small space, and also provides convenience for the design of parts such as the backrest and the basket rod on the cart.

the

Description of drawings

Accompanying drawing 1 is the structure schematic diagram that strut structure of the present invention is in unfolded state;

Accompanying drawing 2 is a structural schematic diagram 1 of the strut structure of the present invention in a half-folded state;

Accompanying drawing 3 is the structural schematic diagram II of the strut structure of the present invention in a half-folded state;

Among them: 1. The first strut; 11. The first rod; 11a. The first buckle; 12. The second rod; 13. The first shaft; 2. The second strut; 21. The third rod; 21a, 22, the fourth rod; 23, the second shaft; 3, the rotation shaft; 4, the locking part; 5, the first fastening part; 6, the second fastening part; 10, the first bracket rod ; 20, the second support rod.

the

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

The strut structure of the cart of the present invention is used to be installed on the cart, and the cart to be installed includes the first support rod 10 and the second support rod 20 respectively located on the left and right sides, and the strut structure of the present invention is installed on the The space between the first support rod 10 and the second support rod 20 is used for the horizontal support of the two along the left and right directions of the cart to unfold and collapse.

Referring to the strut structure shown in FIGS. 1 to 3 , the strut structure includes a first strut 1 and a second strut 2 , and the first strut 1 is rotatably connected to the first support rod 10 around a first shaft 13 , the second support rod 2 is rotatably connected to the second support rod 20 around the second shaft 23 .

The first strut 1 includes a first rod 11, a second rod 12 with one end fixed on the first rod 11, and the second strut 2 includes a third rod 21, a fourth rod with one end fixed on the third rod 21 22. The other end of the second rod 12 is pivotally connected to the other end of the fourth rod 22 through the rotating shaft 3. The first bracket rod 10 is provided with a first buckle 5, and the second bracket rod 20 is provided with a The second buckle 6, the first buckle 5 has a distance greater than zero between the first bracket rod 10 and the first shaft 13, the second buckle 6 is on the second bracket rod 20 and the second shaft 23 also have a spacing greater than zero.

The strut structure has an unfolded state and a folded state, and the strut structure is also provided with a locking mechanism for locking it in the unfolded state. In this embodiment, the locking mechanism is provided on the second rod 12 and the fourth The locking piece 4 between the rods 22 is used to lock the two, and Fig. 1 to Fig. 3 only show a reference schematic diagram of the locking piece 4, and do not show its substantive structure.

When the strut structure is in the unfolded state, the second bar 12 and the fourth bar 22 are supported between the first support bar 10 and the second support bar 20 along the left-right direction of the cart, and the second bar 12 and the fourth bar 22 Locked together by the locking piece 4, the first rod 11 is fixedly fastened on the first fastening part 5, and the third rod 21 is fixedly fastened on the second fastening part 6, so that the first strut 1 , the second support rod 2 forms an integral body with the first support rod 10 and the second support rod 20, and the first fastening member 5 and the second fastening member 6 can respectively provide the first support rod 1 and the second The support bar 2 supports the force, so that the second bar 12 and the fourth bar 22 are fixedly supported between the first support bar 10 and the second support bar 20; when the support bar structure is in a folded state, the locking member 4 is unlocked , the first rod 11 disengages from the first buckle 5, the third rod 21 also disengages from the second buckle 6, the second rod 12 and the fourth rod 22 rotate around the rotation axis 3 and move relatively close together, so that the first bracket rod 10 Close to the second support rod 20 along the left and right direction.

In this embodiment, there are angles greater than zero between the first rod 11 and the second rod 12, and between the third rod 21 and the fourth rod 22. Here, the first strut 1 is integrally formed L Shaped rod, the first rod 11 and the second rod 12 are 90°, and the first rod 11 extends downwards from one end of the second rod 12; the second strut 2 is also an integrally formed L-shaped rod. There is a 90° between the third rod 21 and the fourth rod 22, the third rod 21 extends downwards integrally from one end of the fourth rod 22, the other end of the second rod 12 and the other end of the fourth rod 22 pass through the rotating shaft 3 Pivot connection.

The first shaft 13 is located at the junction of the first rod 11 and the second rod 12, that is, it is located at the upper end of the first rod 11, and the lower end of the first rod 11 is provided with a first buckle portion 11a. 5. It is set as a first boss, and the first buckle part 11a is a first groove with an opening on the first rod 11. The first groove is set on a first rod 11 adjacent to the first support rod 10 On the side, the opening of the first groove faces the first fastening member 5 when the strut structure is unfolded, and the first groove of the first buckle part 11a can be snapped on the second side when the strut structure is unfolded. On a fastening piece 5 .

Similarly, the second shaft 23 is arranged at the junction of the third rod 21 and the fourth rod 22, and is arranged at the upper end of the third rod 21, and the lower end of the third rod 21 is provided with a second buckle part 21a, and the second buckle The fitting 6 is set as a second boss, and the second buckle part 21a is a second groove with an opening on the third rod 21, and the second groove is arranged on the third rod 21 adjacent to the second bracket rod 20 On one side of the second groove, the above-mentioned opening of the second groove faces the second fastening member 6 when the strut structure is unfolded. When the strut structure is unfolded, the above-mentioned second groove of the second buckling portion 21 a can be buckled on the second buckling member 6 in a cooperative manner.

Here, the first fastening member 5 is located below the first shaft 13 on the first support rod 10, and the second fastening member 6 is located below the second shaft 23 on the second support rod 20. When the strut structure is expanded At this time, the second rod 12 and the fourth rod 22 extend along the same horizontal direction and are supported between the first bracket rod 10 and the second bracket rod 20, while the first rod 11 is distributed along the vertical direction, and the first clip at the lower end The buckle 11a is fixedly fastened on the first fastening member 5, so that the first rod 11 is unidirectionally fastened to the first bracket rod 10, the third rod 21 is distributed along the vertical direction, and the second buckle at the lower end The portion 21 a is fixedly fastened on the second fastening member 6 , so that the third rod 21 is one-way fastened on the second bracket rod 20 . When the strut structure is folded, the end of the second rod 12 connected to the fourth rod 22 moves upwards, so that the first rod 11 is separated from the first fastening member 5, the third rod 21 is separated from the second fastening member 6, and then Drive the first strut 1 and the second strut 2 to move closer to each other.

Certainly, in the above-mentioned structure, the first fastening member 5 and the second fastening member 6 may not be additionally provided, but are part rod sections integral with the first support rod 10 and the second support rod 20 respectively, and then passed through the first support rod 10 and the second support rod 20 The first rod 11 and the third rod 21 are respectively provided with buckle structures with openings, so that when the strut structure is unfolded, the first rod 11 is buckled to the first support rod 10, and the third rod 21 is buckled to the on the second support rod 20. However, this structure is slightly more complex and unsightly than the structure of this embodiment.

the

The strut structure can be arranged between the two support rods of the side brackets on the opposite sides on the children's stroller, usually between the rear brackets on both sides, so as to be used for the expansion and coordination of the stroller frame along the left and right directions. fold. In use, as shown in Figures 1 to 3, when the cart frame is unfolded, the strut structure is deployed between the rear supports on both sides, and the first rod 11 of the first strut 1 is fixedly snapped in one direction On the first fastening part 5, the third rod 21 of the second support rod 2 is fixedly and unidirectionally fastened on the second fastening part 6, and the second rod 12 and the fourth rod 22 are supported on both sides along the horizontal direction. Between the rear brackets of the carts, the cart frame is stretched in the left and right direction, and the second rod 12 and the fourth rod 22 are locked by the locking member 4 to lock the strut structure in the unfolded state, so that the cart frame moves along the Stable in left and right directions.

When the stroller frame needs to be folded, the locking member 4 is first unlocked, and the end of the pivotal connection between the second rod 12 and the fourth rod 22 is pulled upwards, and the first strut 1 rotates around the first shaft 13, the second The strut 2 rotates in opposite directions around the second shaft 23, the first buckle part 11a on the first rod 11 disengages from the first fastening part 5, and the second buckle part 21a on the third rod 21 disengages from the second fastening part 6. The second rod 12 and the fourth rod 22 gradually rotate toward each other and move closer together, and the first rod 11 and the third rod 21 also rotate toward the inner side of the cart frame, driving the rear brackets on both sides to gradually retract along the left and right directions.

In summary, the brace structure of the present invention has a small number of rods, a simple structure, and takes up little space, which greatly simplifies the complex structure of the existing rear support on the trolley, reduces the cost, and simultaneously reduces the number of rods It brings convenience to the design and manufacture of parts such as backrests and baskets on the cart. At the same time, after the strut structure is installed, the cart frame has a simpler structure viewed from the rear side and is more convenient to operate.

the

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. the pole structure of a go-cart, described go-cart comprises the first cradling piece and the second cradling piece that lay respectively at the left and right sides, it is characterized in that: described pole structure comprises the first strut be rotationally connected with around the first axle on described first cradling piece, the second strut on described second cradling piece is rotationally connected with around the second axle, described first strut comprises the first bar, one end is fixed in the second bar on described first bar, described second strut comprises the 3rd bar, one end is fixed in the 4th bar on described 3rd bar, the other end of described second bar is connected with the other end phase pivot of described 4th bar, described pole structure has deployed condition and folded state, when described pole structure is in deployed condition, described second bar and the 4th bar interfix and are supported between described first cradling piece and the second cradling piece in left-right direction, described first bar is fastened on described first cradling piece regularly, described 3rd bar is fastened on described second cradling piece regularly, when described pole structure is in folded state, described second bar is drawn close with relative rotation of described 4th bar, and described pole structure also comprises the lockout mechanism for being locked in the deployed state.

2. pole structure according to claim 1, it is characterized in that: described first cradling piece has the first buckling piece, described second cradling piece has the second buckling piece, when described pole structure is in deployed condition, described first bar matches with described first buckling piece and is fastened on described first cradling piece by unidirectional, and described 3rd bar matches with described second buckling piece and is fastened on described second cradling piece by unidirectional.

3. pole structure according to claim 2, it is characterized in that: described first bar is provided with the first clamping part, described 3rd bar is provided with the second clamping part, when described pole structure is launched, described first clamping part is buckled on described first buckling piece ordinatedly, and described second clamping part is buckled on described second buckling piece ordinatedly.

4. pole structure according to claim 3, it is characterized in that: described first buckling piece is be fixedly arranged on the first boss on described first cradling piece, described second buckling piece is be fixedly arranged on the second boss on described second cradling piece, described first clamping part is be opened in first groove described first bar with opening, described second clamping part is be opened in second groove described 3rd bar with opening, when described pole structure is launched, described first groove is buckled on described first boss accordingly, described second groove is buckled on described second boss accordingly.

5. pole structure according to claim 2, it is characterized in that: the spacing of described first buckling piece on described first cradling piece and between described first axle is greater than zero, the spacing of described second buckling piece on described second cradling piece and between described second axle is also greater than zero.

6. pole structure according to claim 1, is characterized in that: have the angle being greater than zero respectively between described first bar and described second bar, between described 3rd bar and described 4th bar.

7. pole structure according to claim 6, is characterized in that: described first is located in described first bar and described second bar joint, and described second is located in described 3rd bar and described 4th bar joint.

8. pole structure according to claim 6, is characterized in that: described first strut is L-type, in 90 ° between described first bar and described second bar; Described second strut is L-type, in 90 ° between described 3rd bar and described 4th bar.

9. pole structure according to claim 6, it is characterized in that: described first bar from one end of described second bar one to downward-extension, described 3rd bar from one end of described 4th bar one to downward-extension, when described pole structure folds, the end that described second bar is connected with described 4th bar moves up and drives described first strut and described second strut mutually to draw close.

10. a children trolley, comprise folding stroller frame, described stroller frame at least comprises the first after poppet and the second after poppet that are positioned at the left and right sides, it is characterized in that: be provided with between described first after poppet and described second after poppet as the pole structure as described in arbitrary in claim 1 to 9.