CN206307088U - Children trolley - Google Patents

Abstract

The utility model discloses a kind of children trolley, its vehicle frame includes from front to back the fore-stock that gradually updip extends, extend along the longitudinal direction and front portion is pivotally connected in after-poppet on the fore-stock, lower pivot is connected to the push rod on the fore-stock, the sliding part on the fore-stock is slidably arranged in along the longitudinal direction, the vehicle frame also includes vertically extending upper strut and lower supporting rod, the upper pivot of the upper strut is connected on the push rod and the lower pivot of the upper strut is connected on the sliding part, the upper pivot of the lower supporting rod is connected on the sliding part and the lower pivot of the lower supporting rod is connected on the after-poppet.When folding with vehicle frame is launched; operator only needs to push or upper lift push rod; just may be such that sliding part slides with respect to fore-stock and each rod member on vehicle frame relatively rotated and is gradually drawn in or is gradually spread out, operation is very convenient, is that the routine use of user brings facility.

Description

stroller

technical field

The utility model relates to a stroller for children.

Background technique

In the prior art, children's strollers generally include a stroller frame with an unfolded state and a folded state, a wheel assembly disposed at the bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the unfolded state. At present, there are many types of stroller frames for children's strollers, the number of rods of the stroller frames is different, and the connection relationship and connection position between the rods are different, so the folding principles and folding methods are also different. How to simplify the structure of the stroller frame and how to simplify the folding method of the stroller frame under the premise of ensuring the stable carrying of children is always the goal pursued by those skilled in the art.

Contents of the invention

The purpose of the utility model is to provide a children's stroller with simple structure and convenient opening and folding operations.

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 bottom of the frame, the locking mechanism for locking the frame in the unfolded state, the frame includes a front bracket that extends upwards gradually from the front to the rear, extends along the front-to-rear direction and has a front pivot a rear frame connected to the front frame, a push rod whose lower part is pivotally connected to the front frame, and a slider provided on the front frame slidably in the front-rear direction, and the vehicle frame also includes an extended upper strut and a lower strut, the upper portion of the upper strut is pivotally connected to the push rod and the lower portion of the upper strut is pivotally connected to the slide, the lower portion of the lower strut The upper part is pivotally connected to the sliding part and the lower part of the lower brace is pivotally connected to the rear support. When the frame is folded, the sliding part slides relative to the front support and drives the upper support. The support rod and the lower support rod are rotated, so that the push rod, the front support and the rear support are relatively folded up and down.

Preferably, the front support at least includes a front support rod extending upwardly gradually from front to rear, and the sliding member is slidably arranged on the front support rod along the length extension direction of the front support rod.

Further, the slider is a slider, and the slider includes a slider part extending in the front-rear direction and a slider end fixed on the rear end of the slider part, and the slider part can slide relatively is inserted in the rod cavity of the front strut and slides back and forth relative to the front strut.

As a specific implementation manner, the lower part of the upper strut and the upper part of the lower strut are pivotally connected to the end of the sliding rod through respective rotating shafts.

Further, the front bracket also includes a front bottom bar, the front part of the front support bar is fixedly connected to the front bottom bar, and the front wheel assembly has two groups and is respectively arranged on the left and right sides of the front bottom bar. side bottom.

As a specific implementation manner, the lower part of the push rod is pivotally connected to the front bottom bar.

Further, the rear support at least includes a rear support rod extending gradually upward from the rear to the front, and the front part of the rear support rod is pivotally connected to the front part of the front support rod.

Further, the rear bracket also includes a rear bottom bar, the rear part of the rear support bar is fixedly connected to the rear bottom bar, and the rear wheel assembly has two groups and is respectively arranged on the left and right sides of the rear bottom bar. side bottom.

Further, the push rod includes a lower push rod, an upper push rod whose lower part is pivotally connected to the upper part of the lower push rod so as to be foldable and foldable relative to the lower push rod, and the upper part of the upper support rod is pivotally connected On the lower push rod, the lower portion of the lower strut is pivotally connected to the rear strut.

Preferably, the push rod includes two push rod side rods respectively located on the left and right sides, and the lower parts of the two push rod side rods are respectively pivotally connected to the front bracket;

The upper strut is U-shaped with an opening facing upwards, and has strut side bars respectively located on the left and right sides, and a strut cross bar fixed between the lower parts of the strut side bars on both sides. The upper part of the rod side rod is pivotally connected to the same side of the push rod side rod, and the strut bar is connected to the sliding member in a manner of rotating around its own axis.

Further preferably, when the vehicle frame is folded, the sliding member slides backward relative to the front bracket so that the front bracket, rear bracket, push rod, upper strut and lower strut are folded together.

Due to the application of the above-mentioned technical solution, the utility model has the following advantages compared with the prior art: the frame of the children's stroller of the utility model only includes a front bracket, a rear bracket, a push rod, an upper strut and a lower strut, The number of rods of the frame is small, the structure is simple, and it has good stability in the unfolded state. When folding and unfolding the frame, the operator only needs to press down or lift up the push rod to make the slider slide relative to the front bracket And make each rod member on the vehicle frame relatively rotate and draw in gradually or unfold gradually, the operation is very convenient, has brought convenience for the user's daily use.

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 side view of the half-folded state of the children's stroller of the present invention;

Accompanying drawing 4 is the side view of the folded state of the children's stroller of the present utility model;

Among them: 1. Front bracket; 11. Front strut; 12. Front bottom bar; 10. Front wheel assembly;

2. Rear bracket; 21. Rear strut; 22. Rear bottom bar; 20. Rear wheel assembly;

3. Push rod; 31. Lower push rod; 32. Upper push rod; 4. Slider (slider); 41. Slider part; 42. Slider end; 5. Upper strut; 6. Lower strut .

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. 4, it includes a vehicle frame in an unfolded state and a folded state, a front wheel assembly 10 located at the bottom front of the vehicle frame, and a rear wheel assembly 20 located at the bottom rear of the vehicle frame , and a locking mechanism for locking the frame in the unfolded state.

The vehicle frame includes a front bracket 1 extending upwards gradually from front to rear, a rear bracket 2 extending along the front-rear direction and the front pivot is connected to the front bracket 1, a push rod 3 with a lower pivot connected to the front bracket 1, The slider 4 that is slidably arranged on the front bracket 1 in the front-back direction, and the upper strut 5 and the lower strut 6 extending in the up-down direction, the upper pivot of the upper strut 5 is connected to the push rod 3 and its lower part is connected with the sliding The member 4 is pivotally connected, the upper part of the lower brace 6 is pivotally connected with the sliding member 4 and the lower part is pivotally connected with the rear bracket 2 .

Specifically, referring to Fig. 1 to Fig. 4, the front bracket 1 includes a front strut 11 extending gradually upward from front to rear, a front bottom bar 12 fixedly connected to the front end of the front strut 11, and a front wheel assembly 10. Two groups are respectively arranged on the left end bottom and the right end bottom of the front bottom bar 12 . The rear bracket 2 includes a rear support rod 21 extending upwards gradually from the rear to the front, and a rear bottom rod 22 fixedly connected to the rear of the rear support rod 21 . Bottom and right end bottom.

The push rod 3 includes a lower push rod 31 and an upper push rod 32 that can be folded relatively. Here, the lower push rod 31 has two side rods arranged on the left and right sides, and the upper push rod 32 is U-shaped with the opening facing downward. , the lower ends of the rods on both sides of the upper push rod 32 are respectively pivotally connected to the upper parts of the lower push rods 31 on both sides. The lower parts of the lower push rods 31 on both sides are respectively pivotally connected to the front bottom rod 12 .

The sliding member 4 is slidably arranged on the front support rod 11 along the length extension direction of the front support rod 11 . In this embodiment, the slider 4 is a slider 4, which includes a slider part 41 extending in the front-rear direction and a slider end 42 fixed on the rear end of the slider part 41, wherein the slider part 41 can be relatively slidably inserted in the rod cavity of the front strut 11 and slide back and forth relative to the front strut 11 .

The lower portion of the upper strut 5 and the upper portion of the lower strut 6 are pivotally connected to the rear portion of the slide bar 4 through respective rotating shafts. Specifically, as shown in Fig. 1 and Fig. 2, the upper strut 5 has strut side bars respectively located on the left and right sides and a strut cross bar fixed between the lower parts of the strut side bars on both sides. The cross bar and the strut side bars on both sides are integrally arranged so that the upper strut 5 is U-shaped with the opening facing upwards. The upper pivots of the strut side bars on both sides are connected to the lower push rods 31 on the corresponding sides. The bar cross bar is connected on the end of the slide bar 42 in a rotating manner around its own axis; the lower struts 6 are two parallel to each other, and the upper parts of the two lower struts 6 are pivotally connected to the slide bar through the rotating shaft of the coaxial center line. On the rod end 42 , the lower parts of the two lower struts 6 are pivotally connected to the rear strut 21 through the coaxial axis of rotation.

In this way, referring to Fig. 1 and shown in Fig. 2, when the vehicle frame was locked in the unfolded state, the slide bar 4 was locked relative to the front bracket 1, the lower strut 6 was supported between the slide bar 4 and the rear bracket 2, and the upper strut 5 Standing between the push rod 3 and the slide rod 4, the upper push rod 32 and the lower push rod 31 of the push rod 3 are relatively expanded, and the overall structure of the vehicle frame is simple and has good stability.

When the vehicle frame needs to be folded up, after unlocking the locking mechanism, first turn the upper push rod 32 forward relative to the lower push rod 31 and apply downward pressure on the push rod 3, as shown in Figure 3, the push rod 3 down to make the upper strut 5 rotate, thereby driving the slide bar 4 to slide backward along the front strut 11 and drive the lower strut 6 to turn over, and then make the push rod 3, the front strut 11 and the rear strut 21 move up and down Gradually fold the folded frame as shown in Figure 4. The front bracket 1, rear bracket 2, push rod 3, upper strut 5, and lower strut 6 on the frame are all folded together in the up and down direction, and its structure is very compact. , the folded vehicle frame is supported on the ground by two groups of front wheel assemblies 10 and rear wheel assemblies 20 .

When the vehicle frame needs to be unfolded for use, the user only needs to pull the upper push rod 32 to flip open relative to the lower push rod 31, so that the upper support rod 5 can rotate and drive the slide rod 4 to slide forward along the front support rod 11, thereby The rods on the vehicle frame are relatively expanded, and the opening operation is also very convenient.

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 child stroller, comprising a vehicle frame with an unfolded state and a folded state, a front wheel assembly disposed at the bottom front portion of the vehicle frame, a rear wheel assembly disposed at the bottom rear portion of the vehicle frame, for The locking mechanism for locking the vehicle frame in the unfolded state is characterized in that the vehicle frame includes a front bracket extending upwards gradually from front to rear, a front bracket extending along the front-rear direction and the front part pivotally connected to the front bracket a rear bracket, a push rod whose lower part is pivotally connected to the front bracket, and a sliding member slidably arranged on the front bracket along the front-rear direction; rod, the upper portion of the upper strut is pivotally connected to the push rod and the lower portion of the upper strut is pivotally connected to the slide, and the upper portion of the lower strut is pivotally connected to the slide and the lower part of the lower strut is pivotally connected to the rear bracket. When the frame is folded, the slider slides relative to the front bracket and drives the upper strut and the lower strut to rotate. Thus, the push rod, the front bracket and the rear bracket are relatively folded up and down. 2. The stroller according to claim 1, characterized in that: the front support at least includes a front support bar that gradually inclines from the front to the rear, and the sliding member slides along the length extension direction of the front support bar set on the front strut. 3. The children's stroller according to claim 2, characterized in that: the sliding member is a sliding bar, and the sliding bar includes a sliding bar part extending in the front-rear direction and fixed on the rear end of the sliding bar part The end of the sliding rod, the sliding rod part can be relatively slidably inserted in the rod cavity of the front support rod and slide back and forth relative to the front support rod. 4. The stroller according to claim 3, characterized in that: the lower part of the upper strut and the upper part of the lower strut are pivotally connected to the end of the sliding rod through respective rotating shafts on the head. 5. The children's stroller according to claim 2, characterized in that: the front bracket further comprises a front bottom bar, the front part of the front support bar is fixedly connected to the front bottom bar, and the push rod The lower part of the pivot is connected to the front bottom bar, and the front wheel assembly has two groups and is respectively arranged at the bottom of the left and right sides of the front bottom bar. 6. The children's stroller according to claim 2, wherein the rear support at least includes a rear support rod that gradually inclines from the rear to the front, and the front part of the rear support rod is pivotally connected to the on the front of the front strut. 7. The children's stroller according to claim 6, wherein the rear support further comprises a rear bottom bar, the rear of the rear support bar is fixedly connected to the rear bottom bar, and the rear wheels There are two groups of components and they are respectively arranged at the bottoms of the left and right sides of the rear bottom bar. 8. The children's stroller according to claim 6, wherein the push rod comprises a lower push rod, the lower part of which is pivotally connected to the upper part of the lower push rod so as to be foldable and foldable relative to the lower push rod. The upper push rod, the upper pivot of the upper support rod is connected to the lower push rod, and the lower pivot of the lower support rod is connected to the rear support rod. 9. The baby stroller according to claim 1, wherein the push rod comprises two push rod side rods located on the left and right sides respectively, and the lower parts of the two push rod side rods are respectively pivotally connected to on the front bracket; The upper strut is U-shaped with an opening facing upwards, and has strut side bars respectively located on the left and right sides, and a strut cross bar fixed between the lower parts of the strut side bars on both sides. The upper part of the rod side rod is pivotally connected to the same side of the push rod side rod, and the strut bar is connected to the sliding member in a manner of rotating around its own axis. 10. The children's stroller according to any one of claims 1 to 9, wherein when the frame is folded, the sliding member slides backward relative to the front bracket so that the front bracket, rear bracket, The push rod, the upper strut and the lower strut are folded together.