CN110001733A - Stroller - Google Patents

Abstract

The invention discloses a baby stroller, the frame of which comprises: a front support with a front wheel assembly at the bottom, a rear support with a rear wheel assembly at the bottom, a push rod frame, a seat frame and a connecting frame. The upper part is rotatably connected to the upper part of the rear bracket, the seat frame extends in the front-rear direction, the front part of the seat frame is rotatably connected to the front bracket, and one end of the connecting frame is rotatably connected to the front bracket. the rear part of the seat frame, the other end of the connecting frame is rotatably connected to the rear bracket, the push rod frame is rotatably connected to the rear bracket, and the lower part of the push rod frame can both The relative rotation can also be slidably connected to the connecting frame along the extending direction of the length of the connecting frame. The number of the frame rods is small and the structure is simple. When unfolding and folding the frame, only the push rod frame needs to be turned over, so that the rods on the frame can be relatively rotated to gradually open or close, and the operation is very convenient.

Description

baby cart

technical field

The present invention relates to a baby stroller.

Background technique

Strollers play an important role for users to carry infants and young children in their daily life, and have now become one of the indispensable children's products in the growth process of infants and young children. In the prior art, the structure of the baby stroller is various, the folding principle of the frame is also different, and the shape and volume after folding are also different.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a baby stroller with a novel structure and folding principle.

In order to achieve the above object, the technical solution adopted in the present invention is: a baby stroller, comprising a frame having an unfolded state and a folded state, a front wheel assembly and a rear wheel assembly arranged at the bottom of the frame, and a The locking mechanism for locking the frame in the unfolded state, the frame includes: a front bracket with the front wheel assembly at the bottom, a rear bracket with the rear wheel assembly at the bottom, a push rod frame, a seat frame and a connecting frame, the upper part of the front frame is rotatably connected with the upper part of the rear frame, the seat frame extends in the front-rear direction, the front part of the seat frame is rotatably connected to the front frame, the connecting frame One end of the connecting frame is rotatably connected to the rear of the seat frame, and the other end of the connecting frame is rotatably connected to the rear bracket, the push rod frame is rotatably connected to the rear bracket, and all The lower part of the push rod frame can be relatively rotatable and can be slidably connected to the connecting frame along the lengthwise extending direction of the connecting frame.

Preferably, the lower part of the push rod frame is rotatably connected with a sliding member, and the sliding member is slidably arranged on the connecting frame along the lengthwise extending direction of the connecting frame.

Further, the connecting frame is rotatably connected to the rear bracket through a first shaft, the connecting frame is connected to the seat frame through a second shaft, and the sliding member is located on the first shaft on the connecting frame and the second axis.

Further, the push rod frame is rotatably connected to the rear bracket through a third shaft, and the third shaft is located above the first shaft on the rear bracket.

As a specific embodiment, the connecting frame has a connecting rod extending in the front-rear direction, and the sliding member is a sliding sleeve slidably sleeved on the connecting rod.

Preferably, the front support includes two sets of front support rods located on the left and right sides, the rear support includes two sets of rear support rods located on the left and right sides, the seat frame, the connecting frame and the push rod The rod brackets are arranged between the front support rods on both sides and the rear support rods on both sides along the left and right directions.

Further, the front strut includes a front strut body extending upwards gradually from the front to the rear, and a front connecting rod body extending backward from the upper part of the front strut body, and the rear strut includes a front strut that gradually extends from the back to the front. The rear support rod body extending obliquely upward, the rear connecting rod body extending forward from the upper part of the rear support rod body, the rear part of the front connecting rod body is rotatably connected with the front part of the rear connecting rod body.

Further, when the frame is in the unfolded state, the front connecting rod body and the rear connecting rod body both extend in a horizontal direction to form a side armrest together.

As a specific embodiment, the lower part of each group of the front struts is provided with the front wheel assembly, the lower part of each group of the rear strut is provided with the rear wheel assembly, and the two groups of the front wheels are provided with the front wheel assembly. The spacing between the assemblies is greater than the spacing between the two sets of the rear wheel assemblies.

Preferably, when the vehicle frame is in the unfolded state, the seat frame and the connecting frame are supported between the front bracket and the rear bracket along the front-rear direction; when the vehicle frame is in the folded state, the The push rod frame is turned backward and folded at the rear side of the rear bracket, and the seat frame and the connecting frame are turned to extend in the up-down direction and folded between the front bracket and the rear bracket.

The above and the following descriptions of orientations such as up-down, front-rear, left-right, etc. are all defined with reference to the orientations observed by infants and young children sitting on the stroller when the stroller is in an unfolded state.

Due to the application of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art: the baby stroller of the present invention only includes a front support, a rear support, a push rod frame, a seat frame and a connecting frame. The structure is small and the structure is simple. When unfolding and folding the frame, only the push rod frame needs to be turned over, so that the rods on the frame can be rotated relative to each other to gradually open or close, and the operation is very convenient. The folded frame structure is also very compact and takes up less space.

Description of drawings

Accompanying drawing 1 is the perspective view of the baby stroller of the present invention in the unfolded state;

2 is a side view of the baby stroller of the present invention in an unfolded state;

3 is a rear view of the baby stroller of the present invention in an unfolded state;

4 is a side view of the baby stroller of the present invention in a half-folded state;

5 is a side view of the baby stroller of the present invention in a folded state;

Among them: 1. Front support; 11. Front support rod; 11a, Front support rod body; 11b, Front connecting rod body; 12. Front cross bar; 2. Rear support; 21b, rear connecting rod body; 22, rear cross rod; 3, push rod frame; 31, push rod; 32, push handle; 4, seat frame; 41, seat post; 5, connecting frame; 51, connecting rod; 6, Sliding member (sliding sleeve); 10, front wheel assembly; 20, rear wheel assembly; 101, first shaft; 102, second shaft; 103, third shaft; 104, fourth shaft; 105, fifth shaft.

Detailed ways

The technical solutions of the present invention will be further elaborated below with reference to the accompanying drawings and specific embodiments.

Referring to Figures 1 to 5, the stroller includes a frame having an unfolded state and a folded state, a front wheel assembly 10 and a rear wheel assembly 20 provided at the bottom of the frame, and a frame for locking the frame in the unfolded state lower locking mechanism.

The frame includes: a front support 1 with a front wheel assembly 10 at the bottom, a rear support 2 with a rear wheel assembly 20 at the bottom, a push rod frame 3, a seat frame 4 and a connecting frame 5, the upper part of the front support 1 and the rear support The upper part of the seat frame 2 is rotatably connected, the seat frame 4 extends in the front-rear direction, the front part of the seat frame 4 is rotatably connected to the front bracket 1, and one end of the connecting frame 5 is rotatably connected to the rear part of the seat frame 4, and is connected The other end of the frame 5 is rotatably connected to the rear bracket 2 , the push rod frame 3 is rotatably connected to the rear bracket 2 , and the lower part of the push rod frame 3 can be relatively rotatable and relatively slidable along the lengthwise extending direction of the connecting frame 5 The ground is connected to the connecting frame 5 . Here, specifically, the lower part of the push rod frame 3 is rotatably connected with a sliding member 6 , and the sliding member 6 is slidably arranged on the connecting frame 5 along the extending direction of the length of the connecting frame 5 to realize the connection between the lower part of the push rod frame 3 and the connecting frame 5 . connection between racks 5.

Referring to the drawings, in this embodiment, the front bracket 1 includes two sets of front struts 11 located on the left and right sides and a front cross bar 12 connected between the lower parts of the two sets of front struts 11; the rear bracket 2 includes The two groups of rear struts 21 are respectively arranged on the left and right sides, and the rear cross bars 22 are connected between the lower parts of the two groups of rear struts 21 . The upper part of the front support rod 11 and the upper part of the rear support rod 21 on the same side are rotatably connected. The seat frame 4 , the connecting frame 5 and the push rod frame 3 are all disposed between the front support rods 21 on both sides and the rear support rods 21 on both sides along the left and right directions.

In the present embodiment, the seat frame 4 includes two seat posts 41 that are arranged on the left and right sides and both extend in the front-rear direction, and the connecting frame 5 also extends in the front-rear direction. The two connecting rods 51, here, the connecting rods 51 on both sides are integrally provided as a U-shaped rod with the opening facing forward. The push rod frame 3 includes two push rods 31 respectively disposed on the left and right sides and extending in the up-down direction, and a push handle 32 rotatably connected between the upper parts of the push rods 31 on both sides.

On the left and right sides of the frame, the upper part of the front strut 11 and the upper part of the rear strut 21 are rotatably connected through the fourth shaft 104 ; the front part of the seat post 41 is rotatably connected to the front strut 11 through the fifth shaft 105 , the rear part of the seat post 41 is rotatably connected to the front part of the connecting rod 51 through the second shaft 102, and the rear part of the connecting rod 51 is rotatably connected to the rear support rod 21 through the first shaft 101; the push rod 31 is connected through the third shaft 103 is rotatably connected to the rear support rod 21, and the lower part of the push rod 31 is rotatably connected to the sliding member 6, and the sliding member 6 is slidably arranged on the connecting rod 51 along the extending direction of the length of the connecting rod 51. Here, the sliding member 6 What is used is a sliding sleeve that is slidably sleeved on the connecting rod 51 . The third shaft 103 is located above the first shaft 101 on the rear support rod 21 ; the sliding sleeve 6 is located between the second shaft 102 and the first shaft 101 on the connecting rod 51 ; the fifth shaft 105 is located on the front support rod 11 The upper part is located below the fourth axis 104 .

In the present embodiment, the front strut 11 includes a front strut body 11a that extends obliquely upwards gradually from front to rear, and a front connecting rod body 11b that extends backward from the upper part of the front strut body 11a. The rear connecting rod body 21a extending obliquely upward gradually and the rear connecting rod body 21b extending forward from the upper part of the rear connecting rod body 21a are rotatably connected with the rear part of the front connecting rod body 11b and the front part of the rear connecting rod body 21b. Here, when the frame is in the unfolded state, the front connecting rod body 11b and the rear connecting rod body 21b both extend in the horizontal direction to form a side armrest together.

The bottom of each front support rod 11 is provided with a front wheel assembly 10 , and the bottom of each rear support rod 21 is provided with a rear wheel assembly 20 . The spacing between the rear wheel assemblies 20 in the left and right directions, on the one hand, can make the frame more stable when unfolded, and on the other hand, when the frame is folded, after the front bracket 1 and the rear bracket 2 are close to each other, the two groups of The rear wheel assemblies 20 are gathered between the two sets of front wheel assemblies 10 in the left-right direction.

When the stroller is deployed and used, as shown in FIGS. 1 to 3 , the front bracket 1 and the rear bracket 2 are relatively deployed and supported on the ground by the front wheel assembly 10 and the rear wheel assembly 20 , and the seat frame 4 and the connecting frame 5 are along the The front and rear directions are relatively unfolded and supported between the front bracket 1 and the rear bracket 2. The locking mechanism locks the frame in this unfolded state. Stable support. Preferably, a locking member may be provided between the sliding member 6 and the connecting frame 5 for locking the frame body in the deployed state.

When the baby stroller needs to be folded up, as shown in FIG. 4 , after the push handle 32 is rotated relative to the push rod 31 to fold the push rod frame 3 , the push rod frame 3 is driven to flip backward, and the push rod frame 3 is opposite to the rear. The bracket 2 rotates and its lower end moves upward, thereby driving the sliding member 6 to move forward along the connecting frame 5, and driving the connecting frame 5 to rotate relative to the rear bracket 2, and the seat frame 4 rotates along with the connecting frame 5. Thus, the front bracket 1 and the rear bracket 2 are gradually retracted along the front-rear direction.

The folded frame is shown in Figure 5, the front bracket 1 and the rear bracket 2 are close to each other, the push rod bracket 3 is folded on the rear side of the rear bracket 2, the seat bracket 4 and the connecting bracket 5 are turned over to extend in the up-down direction and folded in the rear. Between the front bracket 1 and the rear bracket 2, the two rear wheel assemblies 20 are folded between the two front wheel assemblies 10, and the frame presents a very compact and flat structure.

When the frame needs to be opened, only the push rod can be pulled, so that the rods on the frame can be rotated relative to each other and gradually unfolded, and the unfolding operation is also very convenient.

The above-mentioned embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the art to understand the content of the present invention and implement them accordingly, and cannot limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. a kind of stroller, including with unfolded state and folded state vehicle frame, set on the front wheels of the bottom of frame Part and wheel assembly, and for the locking mechanism by vehicle frame locking in the deployed state, which is characterized in that the vehicle frame It include: after-poppet, push-rod frame, the seat frame that bottom is equipped with the fore-stock of the front component, bottom is equipped with the wheel assembly And connection frame, the top of the fore-stock are rotationally connect with the top of the after-poppet, the seat frame prolongs along the longitudinal direction It stretches, the front of the seat frame is rotationally connected on the fore-stock, and the one end of the connection frame is rotationally connected to institute The rear portion of seat frame is stated, and the other end of the connection frame is rotationally connected on the after-poppet, the push-rod frame and institute It states after-poppet rotationally to connect, and the lower part of the push-rod frame can either relatively rotate and can prolong along the length of the connection frame Direction is stretched slidably to connect with the connection frame.

2. stroller according to claim 1, it is characterised in that: be connected with sliding to the lower rotational of the push-rod frame Part, the sliding part are slidably set on the connection frame along the length extending direction of the connection frame.

3. stroller according to claim 2, it is characterised in that: the connection frame passes through first axle and the after-poppet Rotation connection, the connection frame are connect by the second axis with the seat frame, and the sliding part is located at institute on the connection frame It states between first axle and second axis.

4. stroller according to claim 3, it is characterised in that: the push-rod frame passes through third axis and the after-poppet Rotation connection, the third axis are located at the top of the first axle on the after-poppet.

5. stroller according to claim 2, it is characterised in that: the connection frame has the company extended along the longitudinal direction Extension bar, the sliding part are the sliding sleeve being slidably set in the connecting rod.

6. stroller according to claim 1, it is characterised in that: the fore-stock includes be divided into the left and right sides two Group front support rod, the after-poppet include two groups of back stays for being divided into the left and right sides, the seat frame, the connection frame and described Push-rod frame is in left-right direction between the front support rod of two sides and the back stay of two sides.

7. stroller according to claim 6, it is characterised in that: the front support rod includes from front to back gradually to updip The front support rod body of rod tiltedly extended, the front rod body to extend back from the top of the front support rod body of rod, the back stay include Gradually tilt the back stay body of rod extended, the rear connecting rod extended forward from the top of the back stay body of rod upwards from back to front The front of body, the rear portion of the front rod body and the rear connecting rod body is rotatablely connected.

8. stroller according to claim 7, it is characterised in that: when the vehicle frame is under unfolded state, before described Connecting-rod body is horizontally extending with the rear connecting rod body and collectively forms side handrail.

9. stroller according to claim 6, it is characterised in that: the lower part of front support rod described in every group is provided with described Front component, the lower part of back stay described in every group are provided with the wheel assembly, the spacing between front component described in two groups Greater than the spacing between wheel assembly described in two groups.

10. stroller according to any one of claims 1 to 9, it is characterised in that: when the vehicle frame is in unfolded state Under, the seat frame and the connection frame are supported on along the longitudinal direction between the fore-stock and the after-poppet；When the vehicle Frame is under folded state, and the push-rod frame is turned over and collapsed in the rear side of the after-poppet, the seat frame with it is described Connection frame is overturn to vertically extending and collapse between the fore-stock and the after-poppet.