CN206384002U - Children trolley - Google Patents

Abstract

The utility model discloses a kind of children trolley, its vehicle frame includes two side stands for being divided into the left and right sides, it is connected to the stull component between the side stand of both sides, the side stand per side includes from front to back the front support rod of gradually updip extension, the push rod of the top phase pivot connection of bottom and front support rod, upper pivot is connected to the back stay on push rod, the seat bar extended along the longitudinal direction, the back pivot of seat bar is connected on back stay, and the anterior of seat bar pivotally connected has sliding part, sliding part slides up and down on front support rod, side stand per side also includes swing rod, the one end of swing rod is pivotally connected in front support rod above and on the pivotally connected present bar in its other end, during vehicle frame folding, on side stand per side, push rod is turned over and sliding part is along front support rod upward sliding, so as to drive front support rod, back stay, push rod, seat bar and swing rod are relatively rotated and drawn in together, folding operation is very convenient.

Description

stroller

technical field

The utility model relates to a stroller for children.

Background technique

In the prior art, there are various types and structures of strollers, which generally include a foldable stroller frame, a wheel assembly located at the bottom of the stroller frame, and a lock for locking the stroller frame in an unfolded state. locking mechanism. At present, there are various types of cart frames, the number of rods is different, and the connection relationship and connection position between the rods are all different, so the folding principles and folding methods of the cart frames are also different. How to improve the stability of the cart frame when unfolded, how to simplify the structure of the cart frame and the folding and opening operation, and how to reduce the folded volume of the cart frame as much as possible have always been the goals pursued by those skilled in the art.

Contents of the invention

The purpose of the utility model is to provide a new structure of a children's stroller, which has a small number of rods, a simple structure, good rigidity when unfolded, and convenient folding operation.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a children's stroller, including a frame with an unfolded state and a folded state, a front wheel assembly arranged at the bottom front of the frame, and a front wheel assembly arranged at the bottom of the cart The rear wheel assembly at the rear of the frame bottom and the locking mechanism used to lock the frame in the unfolded state, the frame includes two side brackets on the left and right sides, connected between the side brackets on both sides The cross-bracing assembly between them, the side brackets on each side include a front strut extending gradually upward from front to rear, a push rod whose lower part is pivotally connected to the upper part of the front strut, and an upper pivotally connected to the upper part of the front strut. a rear support rod on the push rod, a seat post extending in the front-to-rear direction, the rear part of the seat post is pivotally connected to the rear support rod, and the front part of the seat post is pivotally connected to a slider, The slider is arranged on the front support rod to slide up and down, and the side brackets on each side also include a swing rod, one end of the swing rod is pivotally connected to the front support rod and the other end thereof is pivotally attached to the seat post,

When the vehicle frame is folded, on the side brackets on each side, the push rod is reversed and the slider slides upward along the front support rod, thereby driving the front support rod, the rear support rod, the push rod The rod, seat post and swing bar are relatively rotated and gathered together.

Preferably, the front portion of the seatpost is pivotally connected to the slider by a first axis, the rear portion of the seatpost is pivotally connected to the rear strut by a second axis, and the swing link It is pivotally connected to the seat post through a third shaft, and the third shaft is located between the first shaft and the second shaft along the front-rear direction on the seat post.

Further, the swing link is pivotally connected to the front support rod through a fourth shaft, and the fourth shaft is located below the sliding member on the front support rod.

Preferably, the front support rod includes a front rod part extending upwardly from front to back, and a front joint fixed on the upper end of the front rod part; the push rod includes a push rod rod part extending obliquely in the up-down direction, a push rod joint fixed at the lower end of the push rod rod, the front joint is pivotally connected to the push rod joint; Slider on the head.

Preferably, when the vehicle frame is in an unfolded state, the front support rod and the push rod extend along the same length direction.

Preferably, the locking mechanism includes a side bracket lock provided between the upper portion of the front strut and the lower portion of the push rod for locking both.

Further, the locking mechanism further includes a limiting structure provided on the front pole for limiting the sliding member from sliding downward along the front pole.

Preferably, the cross brace assembly is foldably arranged between the side brackets on both sides along the left and right directions, when the vehicle frame is folded, the side brackets on each side are folded respectively, and the cross brace assembly It is folded so that the side supports on both sides are folded along the left and right directions.

Further, the cross bracing assembly at least includes a cross bracing assembly, and the cross bracing assembly includes two bottom bracing rods that intersect each other and are pivotally connected at the intersections, and each of the bottom bracing rods extends obliquely along the front-rear direction. The front part of the bottom brace is rotatably connected to the front part of the seatpost on one side and the rear part of the bottom brace is rotatably connected to the lower part of the rear brace on the other side.

Furthermore, the front part of the bottom brace is rotatably connected to the front part of the seatpost through a front adapter, and the front adapter is located in front of the slider on the seatpost .

Due to the application of the above-mentioned technical solutions, the utility model has the following advantages compared with the prior art: the children's stroller of the utility model has a small number of rods on the side bracket on one side, and the frame is simple in structure and has a Good rigidity. When the cart needs to be folded, it is only necessary to turn the push rods on both sides backwards so that the rods on the frame can be relatively rotated and gradually gathered together; When the rod is lifted upwards, each rod on the vehicle frame can be rotated relative to each other and gradually unfolded, which is very convenient to operate. The structure of the folded cart is also very compact and can stand on the ground, which brings convenience to users for daily storage and carrying.

Description of drawings

Accompanying drawing 1 is the three-dimensional view under the expanded state of children's stroller of the present utility model;

Accompanying drawing 2 is the side view of the expanded state of the children's stroller of the present utility model;

Accompanying drawing 3 is the perspective view of the folding process of the children's stroller of the present invention;

Accompanying drawing 4 is the side view of the folding process of the children's stroller of the present invention;

Accompanying drawing 5 is the three-dimensional view of the folding state of the children's stroller of the present invention;

Accompanying drawing 6 is the side view of the folded state of the children's stroller of the present utility model;

Among them: 10, side bracket; 1, front support rod; 1a, front rod part; 1b, front joint; 2, push rod; 2a, push rod rod part; 2b, push rod joint; 3, rear support rod; 4, Seat post; 5. Slider (sliding sleeve); 6. Swing rod; 7. Cross support assembly; 71. Bottom support rod; 72. Front adapter; 73. Rear adapter; 8. Rear support assembly; 11. The first axis; 12. The second axis; 13. The third axis; 14. The fourth axis; 15. The fifth axis;

30, front wheel assembly; 40, rear wheel assembly.

detailed description

The technical solution of the present utility model will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

Referring to the children's stroller shown in Fig. 1 to Fig. 6, it includes a vehicle frame in an unfolded state and a folded state, a front wheel assembly 30 located at the bottom front of the frame, and a rear wheel assembly 40 located at the bottom rear of the frame , A locking mechanism for locking the vehicle frame in the unfolded state. The vehicle frame includes two side brackets 10 respectively arranged on the left and right sides, and a cross brace assembly connected between the side brackets 10 on both sides.

The side brackets 10 on each side include a front strut 1 extending upwards gradually from front to rear, a push rod 2 whose lower part is pivotally connected to the top of the front strut 1 , and a push rod 2 extending in the up-down direction and the upper pivot is connected to the push rod. 2 on the rear strut 3, and the seatpost 4 extending in the front-rear direction, wherein the front wheel assembly 30 is arranged at the lower part of the front strut 1, and the rear wheel assembly 40 is arranged at the lower part of the rear strut 3; the seatpost 4 The rear part is pivotally connected to the rear strut 3 , and the front part of the seatpost 4 is pivotally connected to a slider 5 , which is arranged on the front strut 1 to slide up and down. The side bracket 10 also includes a swing link 6 pivotally connected at one end to the front strut 1 and at the other end to the seat post 4 .

Referring to the drawings, the swing rod 6 is arranged on the lower side of the seatpost 4. When the side bracket 10 is unfolded, the swing rod 6 can provide the upward support of the seatpost 4 to a certain extent, and the sliding member 5 moves forward When the strut 1 slides up and down, the seat post 4 is driven to rotate relative to the front strut 1 . Specifically, as shown in FIG. 2 , the front portion of the seat post 4 is pivotally connected to the slider 5 through the first shaft 11 , and the rear portion of the seat post 4 is pivotally connected to the rear strut 3 through the second shaft 12 ; One end of the swing link 6 is pivotally connected to the seat post 4 through a third shaft 13 , and the other end of the swing link 6 is pivotally connected to the front strut 1 through a fourth shaft 14 . The third shaft 13 is located on the seat post 4 between the first shaft 11 and the second shaft 12 in the front-rear direction, while the fourth shaft 14 is located below the slider 5 on the front strut 1 .

Referring to the drawings, the front support rod 1 includes a front rod part 1a extending gradually upward from front to back, and a front joint 1b fixed on the upper end of the front rod part 1a; the push rod 2 includes a push rod extending obliquely in the up and down direction The rod part 2a, the push rod joint 2b fixed on the lower end of the push rod rod part 2a, the above-mentioned front joint 1b and the push rod joint 2b are pivotally connected to each other through the fifth shaft 15 . What the sliding part 5 adopts is the sliding sleeve 5 that is slidably set on the front rod part 1a. When setting it specifically, the rod diameter of the front joint 1b can be set to be slightly larger than the rod diameter of the front rod part 1a, so that the sliding sleeve can be adjusted. 5 to form a limit for sliding upwards. When the side bracket 10 is unfolded, the front strut 1 and the push rod 2 on the same side extend along the same length direction.

The locking mechanism includes a side bracket lock (not shown) that is arranged between the upper part of the front strut 1 and the lower part of the push rod 2 to lock the two. When the side bracket 10 is unfolded, the push rod 2 and the front The struts 1 are locked by side bracket locking pieces to form an integral rigid rod. Specifically, the side bracket locking member can be configured as a structure that can be automatically unlocked when the push rod 2 is pressed down to rotate to a certain angle relative to the front support rod 1 .

The locking mechanism also includes a limiting structure (not shown in the figure) provided on the front pole 1 for limiting the sliding sleeve 5 to slide down along the front pole 1 . In this way, when the vehicle frame is locked in the unfolded state, as shown in Figures 1 and 2, on the side brackets 10 on each side, a stable structure is formed between the front support rod 1, the push rod 2, the rear support rod 3 and the seat post 4. The triangular structure, another triangular structure is formed among the front strut 1 , the seat post 4 and the swing rod 6 , so that the side bracket 10 on each side has good rigidity when unfolded.

Referring to the drawings, the cross brace assembly is foldably arranged between the side brackets 10 on both sides along the left and right directions. In this embodiment, the cross brace assembly at least includes a cross brace assembly 7, wherein the cross brace assembly 7 includes two bottom braces 71 that intersect each other and are pivotally connected at the intersections, and each bottom brace 71 is along the front-to-rear direction Inclined extension. The front part of the bottom brace 71 is rotatably connected to the front part of the seat post 4 of one side bracket 10 through the front adapter 72, and the rear part of the bottom brace 71 is rotatably connected to the other side through the rear adapter 73. On the lower part of the rear strut 3 of one side side support 10. Specifically, the front adapter 72 is located in front of the first shaft 11 on the seatpost 4, the rear adapter 73 is located below the second axle 12 on the rear strut 3, and the rear adapter 73 is located on the rear strut. 3 close to the lower end of the rear strut 3. In this way, when the cross brace assembly 7 is unfolded, the bottom brace 71 also provides a certain support for the seat post 4 in the up and down direction, so as to improve the bearing capacity of the seat post 4 .

In this embodiment, the cross brace assembly further includes a rear support assembly 8 arranged between the rear support rods 3 on both sides. The rear support assembly 8 can adopt a conventional structure with a self-locking function for unfolding, and also can adopt other cross-bracing structures that can be expanded or folded in the transverse direction.

Referring to Fig. 1 and Fig. 2, when the stroller is unfolded and used, the frame is locked in the unfolded state, the side brackets 10 on both sides are unfolded respectively, and the cross brace assembly 7 is unfolded in the left and right directions and supported on the seat posts 4 on both sides Between the rear struts 3, the rear support assembly 8 is unfolded in the left and right direction and supported between the rear struts 3 on both sides. Sit-stand support.

Referring to Fig. 3 and Fig. 4, when the stroller needs to be folded up, the operator stands on the rear side of the stroller and first unlocks the rear support assembly 8, then presses down the push rods 2 on both sides and After the side bracket lock is unlocked, on the side bracket 10 on each side, the push rod 2 rotates relative to the front strut 1 and turns towards the rear side of the rear strut 3, and the push rod 2 drives the front strut 1 when turning backwards. The upper part goes up so that the front strut 1 is gradually retracted towards the rear strut 3. Under the joint action of the seat post 4 and the swing rod 6, the sliding sleeve 5 slides upward along the front strut 1 and makes the seat post 4 relative to the front strut 1. and the rear strut 3 rotate respectively, and the seat post 4 further drives the front strut 1 and the rear strut 3 to gradually gather along the front and rear directions during the rotation of the seat post 4; The front part of the rod 71 goes up, so that the cross brace assembly 7 is elongated and gradually gathered in the front-to-back direction, so that the side brackets 10 on both sides are gradually gathered in the left-right direction.

Finally, after the stroller is folded, as shown in Fig. 5 and Fig. 6, the front strut 1, the rear strut 3, the push rod 2, the seat post 4 and the swing rod 6 are folded together on the side brackets 10 on each side. The front wheel assembly 30 on the side and the rear wheel assembly 40 are close to each other; the cross support assembly 7 and the rear support assembly 8 are gathered between the side brackets 10 on both sides along the left and right directions, and the folded vehicle frame relies on two groups of front wheel assemblies 30 Stand on the ground with two groups of rear wheel assemblies 40. The folded baby stroller has a very compact structure, takes up little space, and is very convenient to carry and store.

When the stroller needs to be deployed and used, the operator only needs to stand on the rear side of the stroller and lift up the push rods 2 on both sides to make it rotate relative to the rear support rod 3 and the front support rod 1, so that the The seat post 4 and the swing bar 6 on the side bracket 10 rotate respectively and the sliding sleeve 5 slides down along the front support bar 1 so that the rods on the side bracket 10 gradually unfold, and at the same time the two bottom support bars 71 rotate relatively to make the cross The brace assembly 7 is gradually deployed along the left and right directions, so that the distance between the side brackets 10 on both sides gradually increases. When the vehicle frame is fully unfolded, the locking mechanism automatically locks so that the vehicle frame is stably in the unfolded state. The opening operation is also very convenient.

To sum up, the children's stroller of the present invention has a small number of rods on the side bracket 10 on one side, and the frame has a simple structure and good rigidity in the unfolded state. When the cart needs to be folded, it is only necessary to turn the push rods 2 on both sides backward so that the rods on the frame can be relatively rotated and gradually gathered together; Lifting the push rod 2 upwards can make each bar member on the vehicle frame relatively rotate and gradually unfold, which is very convenient to operate. The structure of the folded cart is also very compact and can stand on the ground, which brings convenience to users for daily storage and carrying.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present utility model, and its purpose is to allow those familiar with this technology to understand the content of the utility model and implement it accordingly, and not to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (10)

1. a kind of children trolley, including the vehicle frame with deployed condition and folded state, the front-wheel located at vehicle frame bottom front portion Component, the wheel assembly located at vehicle frame bottom rear portion, for the vehicle frame to be locked into locking mechanism in the deployed state, its It is characterised by：The vehicle frame includes two side stands for being divided into the left and right sides, the horizontal stroke being connected between side stand described in both sides Support component, the side stand per side includes from front to back the gradually front support rod of updip extension, bottom and the front support rod Push rod, the back stay that upper pivot is connected on the push rod, the seat bar extended along the longitudinal direction, institute of top phase pivot connection The back pivot for stating a bar is connected on the back stay and the anterior of the seat bar pivotally connected has sliding part, the sliding part Slide up and down on the front support rod, the side stand per side also includes swing rod, the one end pivot of the swing rod connects It is connected on the front support rod above and its other end is pivotally connected on the seat bar,

During the vehicle frame folding, on the side stand per side, the push rod is turned over and the sliding part is along the preceding branch Bar upward sliding, so as to drive the front support rod, back stay, push rod, seat bar and swing rod to relatively rotate and draw in together.

2. children trolley according to claim 1, it is characterised in that：The front portion of the seat bar passes through first axle and the cunning Moving part phase pivot is connected, and the rear portion of the seat bar is pivotally connected on the back stay by the second axle, and the swing rod passes through the Three axles are pivotally connected on the seat bar, and described the 3rd axle is located at the first axle and the along the longitudinal direction on the seat bar Between two axles.

3. children trolley according to claim 2, it is characterised in that：The swing rod passes through the 4th axle and the front support rod phase Pivotally connected, the 4th axle is located at the lower section of the sliding part on the front support rod.

4. children trolley according to claim 1, it is characterised in that：The front support rod is including gradually updip is prolonged from front to back The preceding bar portion stretched, the front connector for being fixed on the preceding bar portion upper end；The push rod includes tilting pushing away for extension along the vertical direction Bar bar portion, the push rod joint for being fixed on the push rod subordinate end, the front connector are connected with the push rod joint phase pivot； The sliding part is the sliding sleeve being slidably set in the preceding bar portion of the front support rod.

5. children trolley according to claim 1, it is characterised in that：When the vehicle frame be in deployed condition when, it is described before Pole extends with the push rod along same length direction.

6. children trolley according to claim 1, it is characterised in that：The locking mechanism is included located at the front support rod It is used for the side stand locking piece for locking both between top and the bottom of the push rod.

7. children trolley according to claim 6, it is characterised in that：The locking mechanism also includes being located at the front support rod It is upper to be used to limit position limiting structure of the sliding part along the front support rod slide downward.

8. according to any described children trolley of claim 1 to 7, it is characterised in that：The stull component in left-right direction may be used Folding it is arranged between the side stand of both sides, during the vehicle frame folding, the side stand per side is separately folded, and institute State the folding of stull component and so that the side stand of both sides is mutually drawn in left-right direction.

9. children trolley according to claim 8, it is characterised in that：Described stull component at least includes cross group Part, the cross support component includes the two foundation struts for intersecting and being connected in infall phase pivot, the every bottom supporting rod Extension is tilted along the longitudinal direction, and the front portion of the bottom supporting rod is rotationally connected on the front portion of the seat bar and bottom described in side It is connected on the bottom of back stay described in opposite side to the posterior rotation of strut.

10. children trolley according to claim 9, it is characterised in that：The anterior of the bottom supporting rod is turned by preceding adaptor It is connected to dynamicly on the front portion of the seat bar, described preceding adaptor is located at the front of the sliding part on the seat bar.