CN205344999U - Child stroller - Google Patents

Abstract

The utility model discloses a child stroller, its frame includes the fore -stock, the after -poppet, the seat pole, the bar, the push rod, the front tension bar, back stay, and locate first slider and the second slider on the after -poppet with sliding, it is used for ordering about the elastic component that both kept away from required elastic restoring force relatively to be equipped with between first slider and the second slider, in first slider and both of these of second slider one when sliding from top to bottom, just, can order about another person correspondingly slides from top to bottom, make simultaneously that each member on the frame is relative to expand or draw in in relatively, its structure is similar to automatic umbrella with the theory of operation. When the frame trunned into development condition to by fold condition, the user only needed unblock locking mechanical system, and each member on the frame just can automatically expand, until locking mechanical system lock again so that frame lock under development condition. The expansion operation of this shallow can be operated with the help of the foot completely to the both hands of having liberated the operator have brought very big facility for the daily use of shallow.

Description

stroller

technical field

The utility model relates to a stroller for children.

Background technique

In the prior art, a children's stroller includes a foldable vehicle frame, a wheel assembly disposed at the bottom of the vehicle frame, and a locking mechanism for locking the vehicle frame in an unfolded state. Currently on the market, most of the children's strollers need hands to operate when they are opened, and in daily use, parents sometimes need to hold the child with both hands, or it is inconvenient to free up their hands to open the stroller, which is inconvenient to use.

Contents of the invention

The purpose of this utility model is to overcome the shortcoming of prior art, provide a kind of child stroller that can rely on foot to open.

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 wheel assembly arranged at the bottom of the frame, and used to lock the frame The locking mechanism in the unfolded state and the folded state, the vehicle frame includes a front bracket, a rear bracket, a seat post, a handle bar and a push rod, the upper part of the front bracket is pivotally connected with the upper part of the rear bracket, and the The rear bracket is provided with a first slider that slides up and down along its length direction, the front part of the seat post is pivotally connected to the front bracket, the rear part of the seat post and the lower part of the push rod are respectively pivotally connected to the first slider, the front portion of the grab bar is pivotally connected to the upper portion of the rear bracket and the rear portion thereof is pivotally connected to the push rod,

The rear bracket is also provided with a second sliding piece that slides along its length direction, the second sliding piece is located above or below the first sliding piece on the rear bracket, and the first sliding piece is connected to the first sliding piece. An elastic member is provided between the second sliders to drive the two relatively away from the required elastic restoring force, and the vehicle frame also includes a front tie rod and a rear tie rod, and the front part of the front tie rod is pivotally connected to the seat post and its rear is pivotally connected to the second slide, the front of the rear pull rod is pivotally connected to the second slide and its rear is pivotally connected to the push rod,

When the vehicle frame is in the folded state, the front bracket, the rear bracket, the seat post, the handrail bar, the push rod, the front pull rod and the rear pull rod are close to each other, and the first sliding part and the second sliding part are located at The lower part of the rear bracket and the elastic member are in a compressed state, and the locking mechanism locks the frame in a folded state; when the frame is unfolded, after the locking mechanism is unlocked, the first A sliding piece is relatively far away from the second sliding piece under the elastic force of the elastic piece and slides upwards along the rear bracket, thereby driving the front bracket, rear bracket, seat post, handrail bar, push rod, The front pull rod and the rear pull rod are automatically deployed relative to each other until the locking mechanism locks the vehicle frame in the unfolded state.

Preferably, the rear support includes rear support rods respectively located on the left and right sides, each of the rear support rods is provided with the first sliding member and the second sliding member, and the locking mechanism includes a A locking member between at least one of the first sliding member and the second sliding member and the rear strut.

Further, among the two parts of the first sliding part and the second sliding part, one is the first part located above, and the other is the second part located below, and the locking part is arranged on the An unlocking part for synchronously unlocking the two locking parts is also provided between the second part and the rear pole, and between the second parts on both sides.

Furthermore, the unlocking part is an unlocking crossbar, and when the unlocking crossbar is pressed, the locking parts on both sides are unlocked synchronously.

Furthermore, the second sliding member is located below the first sliding member, the locking member is provided between the second sliding member and the rear support rod, and the unlocking member is provided on both sides between the second sliders.

As a specific implementation manner, the second sliding member on both sides is provided with a stepping portion protruding outward for the foot to step on to drive the second sliding member to slide down.

Preferably, both the first sliding member and the second sliding member are sliding sleeves slidably sleeved on the rear support rod, and the elastic member is sleeved on the rear support rod and located on the rear support rod. Describe the spring between the first slider and the second slider.

Preferably, a front portion of said seatpost is pivotally connected to said front bracket by a first axis, a rear portion of said grab bar is pivotally connected to a push rod by a second axis, and a front portion of said front tie rod pivotally connected to the seatpost by a third axis, the rear of the rear link is pivotally connected to the pushrod by a fourth axis, wherein the third axis is located rearward of the first axis side, the fourth shaft is located on the front side of the second shaft.

Further, the rear part of the seatpost is pivotally connected to the first sliding part through the fifth shaft, and the lower part of the push rod is pivotally connected to the first sliding part through the sixth shaft, and the The fifth axis and the sixth axis are respectively located on the front and rear sides of the rear bracket; the rear part of the front tie rod is pivotally connected to the second slider through the seventh axis, and the rear part of the rear tie rod The eighth shaft is pivotally connected to the second sliding member, and the seventh shaft and the eighth shaft are respectively located at the front and rear sides of the rear bracket.

Preferably, the wheel assembly includes a front wheel assembly disposed at the bottom of the front frame, and a rear wheel assembly disposed at the bottom of the rear frame. When the vehicle frame is in a folded state, the front wheel assembly and the The rear wheel assemblies come together and allow the folded frame to stand on its own.

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 simple structure, and when the frame changes from the folded state to the unfolded state, the user only needs to unlock the locking mechanism When the folded and locked state is released, the rods on the vehicle frame will automatically unfold relative to each other until the locking mechanism locks again so that the vehicle frame is locked in the unfolded state. The unfolding operation of the cart can be completely operated by feet, that is, the unlocking part is operated by the feet to unlock, and the frame will be automatically unfolded, which frees the operator's hands and brings convenience to the daily use of the cart. Great convenience.

Description of drawings

Accompanying drawing 1 is the three-dimensional view that the children's stroller of the present invention is in the unfolded state;

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

Accompanying drawing 3 is the side view of the children's stroller of the present invention in a folded state;

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

Among them: 1. Front support; 2. Rear support; 2a. Rear support rod; 3. Seat post; 4. Armrest rod; 5. Push rod; 6. Front tie rod; 7. Rear tie rod; 9. The second sliding member; 9a. The stepping part; 10. The elastic member (spring);

11. First axis; 12. Second axis; 13. Third axis; 14. Fourth axis; 15. Fifth axis; 16. Sixth axis; 17. Seventh axis; 18. Eighth axis;

20, front wheel assembly; 30, rear wheel assembly; 40, unlock cross bar.

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 with an unfolded state and a folded state, a wheel assembly arranged at the bottom of the frame, and a locking mechanism for locking the vehicle frame in the unfolded state and the folded state. mechanism.

The vehicle frame includes a front bracket 1, a rear bracket 2, a seat post 3, a handrail bar 4 and a push rod 5, the upper part of the front bracket 1 is pivotally connected with the upper part of the rear bracket 2, and the rear bracket 2 is provided with The first sliding part 8 that slides up and down, the front part of the seat post 3 is pivotally connected to the front bracket 1, and the rear part of the seat post 3 is pivotally connected to the first sliding part 8; The front part of the rod 4 is pivotally connected to the upper part of the rear bracket 2 , the rear part of the armrest rod 4 is pivotally connected to the push rod 5 , and the lower part of the push rod 5 is pivotally connected to the first sliding member 8 . The wheel assembly includes a front wheel assembly 20 located at the bottom of the front frame 1 and a rear wheel assembly 30 located at the bottom of the rear frame 2 .

The rear support 2 is also provided with a second slide 9 that slides along its lengthwise direction, and the second slide 9 is positioned above or below the first slide 8 on the rear support 2, between the first slide 8 and the second slide. An elastic member 10 is provided between the sliding members 9 to drive them away from the required elastic restoring force. The vehicle frame also includes a front tie rod 6 and a rear tie rod 7. The front part of the front tie rod 6 is pivotally connected to the seat post 3 and its The rear part is pivotally connected on the second sliding part 9 , and the front part of the rear pull rod 7 is pivotally connected on the second sliding part 9 and its rear end is pivotally connected on the push rod 5 . In this way, when the second sliding member 9 slides down along the rear bracket 2, the front tie rod 6 and the rear tie rod 7 can respectively act on the seat post 3 and the push rod 5, so that the seat post 3 and the push rod 5 gradually move closer and make the first The slider 8 slides down along the rear bracket 2; when the second slider 9 slides up along the rear bracket 2, the front tie rod 6 and the rear tie rod 7 will respectively act on the seat post 3 and the push rod 5, thereby driving the seat post 3 It gradually expands relative to the push rod 5 and drives the first sliding member 8 to slide up at the same time.

Referring to Fig. 2, when setting, the front part of the seatpost 3 is pivotally connected to the front bracket 1 through the first shaft 11, the rear part of the armrest bar 4 is pivotally connected to the push rod 5 through the second shaft 12, and the front The front part of the tie rod 6 is pivotally connected to the seat post 3 by means of a third shaft 13 and the rear part of the rear rod 7 is pivotally connected to the push rod 5 by a fourth shaft 14 which is located on the rear side of the first shaft 11 , the fourth shaft 14 is located on the front side of the second shaft 12, so that when the second slider 9 slides up and down along the rear bracket 2, the seat post 3 and the push rod 5 can be driven to unfold and fold correspondingly through the front tie rod 6 and the rear tie rod 7 . In addition, the rear portion of the seatpost 3 is pivotally connected to the first sliding member 8 through a fifth shaft 15, and the lower portion of the push rod 5 is pivotally connected to the first sliding member 8 through a sixth shaft 16. The sixth axis 16 is respectively located on the front and rear sides of the rear bracket 2; the rear part of the front tie rod 6 is pivotally connected to the second slider 9 through the seventh axis 17, and the rear part of the rear tie rod 7 is pivotally connected through the eighth shaft 18 On the second slider 9, the seventh axis 17 and the eighth axis 18 are respectively located on the front and rear sides of the rear bracket 2, so that when the frame is folded, the seat post 3 and the push rod 5, the front tie rod 6 and the rear tie rod 7 They can be closely connected to the front and rear sides of the rear bracket 2 respectively, so that the folded vehicle frame has a more compact structure.

Specifically, referring to the accompanying drawings, the rear bracket 2 includes rear support rods 2a respectively located on the left and right sides, and each rear support rod 2a is provided with a first sliding member 8 and a second sliding member 9. Both the sliding part 8 and the second sliding part 9 can adopt a sliding sleeve sleeved on the rear strut 2a, and what the elastic member 10 adopts is a spring sleeved on the rear strut 2a. One slider 8 and the second slider 9 .

The locking mechanism includes a locking member (not shown) that is arranged between at least one of the first sliding member 8 and the second sliding member 9 and the rear strut 2a, and the locking member is on the rear bracket 2 There are two locking positions, that is, an unfolded locking position and a folded locking position, so as to lock the vehicle frame in the unfolded state and the folded state correspondingly. Specifically, among the two components of the first sliding member 8 and the second sliding member 9, one of them is the first component located above, and the other is the second component located below, and the above-mentioned locking member is then arranged between the second component and the second component. An unlocking part for synchronously unlocking the locking parts on both sides is also provided between the rear struts 2a and between the second parts on both sides.

In this embodiment, the second sliding member 9 is located below the first sliding member 8 on the rear strut 2a, correspondingly the front tie rod 6 is located below the seat post 3, the rear tie rod 7 is located below the push rod 5, and the locking member That is, it is located between the second sliding member 9 and the rear support rod 2a. The locking member can adopt a structure in which the lock pin matches the lock hole, that is, a plurality of lock holes are arranged on the rear support rod 2a, and the second sliding member Lock pins are arranged on the 9, and the vehicle frame is locked in the unfolded position or the folded position by locking the lock pins into different lock holes. Correspondingly, the unlocking part is arranged between the second sliding parts 9 on both sides, which can adopt the unlocking cross bar 40, and the unlocking cross bar 40 is linked with the lock pins in the locking parts on both sides so that the unlocking cross bar 40 is pressed. Simultaneously unlock the locking parts on both sides.

Referring to Fig. 1 and Fig. 2, when the vehicle frame is in the unfolded state, the front bracket 1, the rear bracket 2, the seat post 3, the armrest bar 4, and the push rod 5 are mutually unfolded, and the second sliding part 9 is locked in the rear by the locking part. On the bracket 2, the front tie rod 6 and the rear tie rod 7 are relatively unfolded and stably stand under the seat post 3 and the push rod 5, and the vehicle frame is in a stable unfolded state.

When the vehicle frame needs to be folded, firstly, after stepping on the unlocking cross bar 40 to unlock the locking member, then stepping on the stepping portion 9a protruding outwards provided on the side of the second sliding member 9 for stepping on, The second sliding member 9 is driven to slide down along the rear strut 2a, so that, under the action of the front pull rod 6 and the rear pull rod 7, the seat post 3 and the push rod 5 are pulled down and gradually move closer to the rear support 2, which makes the front support 1 to The back and the rear bracket 2 are gradually moved closer, and the armrest bar 4 is turned back to gradually move closer to the rear bracket 2. At the same time, the first sliding member 8 slides down along the rear bracket 2 and compresses the elastic member 10 to gradually move closer to the second sliding member 9. After the second sliding part 9 slides down to the folded locking position below the rear bracket 2, the second sliding part 9 and the rear bracket 2 are locked by the locking part, and the vehicle frame is locked in the folded state. They are all close together, the elastic member 10 is in the state of compressing and storing energy, and relies on the front wheel assembly 20 and the rear wheel assembly 30 to stand on the ground independently, as shown in Fig. 3 and Fig. 4 .

And when the vehicle frame needs to be launched, the operator only needs to unlock the locking member by touching the unlocking bar 40 with his feet, that is, the locking between the second sliding member 9 and the rear bracket 2 is released. At this time, the elastic member 10 itself Under the active force, the elastic member 10 drives the first sliding member 8 to slide upwards along the rear bracket 2, which makes the seat post 3 and the push rod 5 gradually expand relative to the rear bracket 2, and makes the front bracket 1 gradually move forward relative to the rear bracket 2 Unfolding, the armrest bar 4 is gradually turned over and gradually unfolded relative to the rear bracket 2. At the same time, the seat post 3 and the push rod 5 act on the front tie rod 6 and the rear tie rod 7, so that the front tie rod 6 and the rear tie rod 7 gradually expand relative to each other while gradually moving upward. And drive the second sliding part 9 to slide upward until the second sliding part 9 slides to the unfolded locking position on the upper part of the rear bracket 2, the second sliding part 9 and the rear bracket 2 are automatically locked by the locking part, and the vehicle frame is automatically locked. Locked in the expanded state. The structure and unfolding principle are similar to those of an automatic umbrella, and the operation is very convenient.

To sum up, the structure of the children's stroller of the present utility model is simple, and the frame can be switched between the unfolded state and the folded state only by the operation of the feet, which frees the hands of the operator and brings convenience to the daily use of the stroller. Great convenience came.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, and not to limit the protection scope of the present 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 stroller for children, comprising a frame with an unfolded state and a folded state, a wheel assembly arranged at the bottom of the frame, a locking mechanism for locking the frame in the unfolded state and the folded state, its It is characterized in that: the vehicle frame includes a front bracket, a rear bracket, a seat post, a handle bar and a push rod, the upper part of the front bracket is pivotally connected with the upper part of the rear bracket, and the rear bracket is provided with a A first slider that slides up and down in the length direction, the front part of the seat post is pivotally connected to the front bracket, the rear part of the seat post and the lower part of the push rod are respectively pivotally connected to the first On the slider, the front part of the armrest bar is pivotally connected to the upper part of the rear bracket and the rear part is pivotally connected to the push rod, The rear bracket is also provided with a second sliding piece that slides along its length direction, the second sliding piece is located above or below the first sliding piece on the rear bracket, and the first sliding piece is connected to the first sliding piece. An elastic member is provided between the second sliders to drive the two relatively away from the required elastic restoring force, and the vehicle frame also includes a front tie rod and a rear tie rod, and the front part of the front tie rod is pivotally connected to the seat post and its rear is pivotally connected to the second slide, the front of the rear pull rod is pivotally connected to the second slide and its rear is pivotally connected to the push rod, When the vehicle frame is in the folded state, the front bracket, the rear bracket, the seat post, the handrail bar, the push rod, the front pull rod and the rear pull rod are close to each other, and the first sliding part and the second sliding part are located at The lower part of the rear bracket and the elastic member are in a compressed state, and the locking mechanism locks the frame in a folded state; when the frame is unfolded, after the locking mechanism is unlocked, the first A sliding piece is relatively far away from the second sliding piece under the elastic force of the elastic piece and slides upwards along the rear bracket, thereby driving the front bracket, rear bracket, seat post, handrail bar, push rod, The front pull rod and the rear pull rod are automatically deployed relative to each other until the locking mechanism locks the vehicle frame in the unfolded state. 2. The children's stroller according to claim 1, characterized in that: the rear support includes rear support rods respectively located on the left and right sides, and each of the rear support rods is provided with the first sliding member and The second sliding member, the locking mechanism includes a locking member disposed between at least one of the first sliding member and the second sliding member and the rear support rod. 3. The stroller according to claim 2, characterized in that: among the two parts of the first sliding part and the second sliding part, one of them is the first part located above, and the other is located at the top. The second part below, the locking part is arranged between the second part and the rear strut, and there is also an unlocking device for synchronously unlocking the two locking parts between the second parts on both sides. pieces. 4 . The baby stroller according to claim 3 , wherein the unlocking member is an unlocking cross bar, and when the unlocking cross bar is pressed, the locking members on both sides are unlocked synchronously. 5. The stroller according to claim 3, wherein the second sliding member is located below the first sliding member, and the locking member is provided between the second sliding member and the rear support Between the rods, the unlocking part is arranged between the second sliding parts on both sides. 6 . The children's stroller according to claim 5 , wherein the second sliding parts on both sides are provided with stepping parts protruding outwards for stepping on to drive the second sliding parts down. 7 . 7. The stroller according to any one of claims 2 to 6, characterized in that: the first sliding member and the second sliding member are both sliding sleeves slidably sleeved on the rear support rod , the elastic member is a spring sheathed on the rear support rod and located between the first sliding member and the second sliding member. 8. The stroller according to claim 1, wherein the front portion of the seat post is pivotally connected to the front bracket by a first axis, and the rear portion of the armrest bar is pivoted by a second axis. The axle is connected to the push rod, the front portion of the front tie rod is pivotally connected to the seat post by a third axis, and the rear portion of the rear tie rod is pivotally connected to the push rod by a fourth axis, wherein , the third axis is located at the rear side of the first axis, and the fourth axis is located at the front side of the second axis. 9. The stroller according to claim 8, wherein the rear portion of the seat post is pivotally connected to the first slide member by a fifth axis, and the lower portion of the push rod is pivotally connected by a sixth axis. The pivot is connected to the first slider, the fifth axis and the sixth axis are respectively located on the front and rear sides of the rear support; the rear part of the front pull rod is pivotally connected to the seventh axis On the second slider, the rear part of the rear pull rod is pivotally connected to the second slider through the eighth shaft, and the seventh shaft and the eighth shaft are respectively located at the front and rear sides of the rear bracket. side. 10. The baby stroller according to claim 1, wherein the wheel assembly includes a front wheel assembly disposed at the bottom of the front frame, and a rear wheel assembly disposed at the bottom of the rear frame, when the cart When the frame is in the folded state, the front wheel assembly and the rear wheel assembly are close to each other so that the folded frame stands on the ground.