CN201769853U - Baby stroller with adjustable backrest - Google Patents

Abstract

A child stroller with an adjustable backrest, which includes a stroller frame, a cloth cover, a front wheel assembly, and a rear wheel assembly. The stroller frame includes two side brackets, and a transverse link arranged between the two side brackets and the backrest bracket, each side bracket includes a front wheel bracket, a rear wheel bracket whose upper end is rotatably arranged on the front wheel assembly, a pair of rear wheel brackets are respectively provided with sliding sleeves that can slide along the rear wheel bracket, the front end of the backrest bracket The left and right sides of the head are respectively connected to a pair of sliding sleeves; the cloth cover is connected to a pair of front wheel brackets, a pair of rear wheel brackets and a backrest bracket, and the cloth cover has a seat cushion and a backrest connected to the seat cushion. The front side of the seat cushion is fixedly connected to the front wheel bracket, the rear side of the seat cushion is fixedly connected to a pair of sliding sleeves, and the backrest is wrapped under the backrest bracket. When adjusting the height of the backrest, the rear wheel bracket rotates relative to the front wheel bracket, so that the cloth cover drives the sliding sleeve to move upwards along the rear wheel bracket, so that the backrest bracket is changed from a sitting position to a half-lying position.

Description

Stroller with adjustable backrest

technical field

The utility model relates to a child stroller with an adjustable backrest.

Background technique

The children's stroller in the prior art usually includes: a pair of side supports, wheels, a crossbar assembly connected between the pair of side supports, a backrest support and a cloth cover, and each side support includes a front wheel support, a rear wheel support, The seat post connecting the front wheel support and the rear wheel support, the front end of the back support support is rotatably connected to a pair of seat posts, and the cloth cover is connected between the front wheel support, a pair of seat post and the back support support, wherein the cloth cover It includes a seat cushion part located between the front wheel frame and the rear wheel frame. To further streamline the frame, the developers removed a pair of seatposts, which made it impossible to install the cloth cover originally attached between the pair of seatposts.

Contents of the invention

The technical problem to be solved by the utility model is to provide a child stroller which can be folded and the height of the backrest can be adjusted without a pair of seat cushion bars.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a children's stroller with an adjustable backrest, which includes a stroller frame, a cloth cover connected to the stroller frame, and a The front wheel assembly and the rear wheel assembly at the bottom of the cart frame, the cart frame includes two symmetrical side brackets, a horizontal link and a backrest bracket arranged between the two side brackets, Each of the side brackets includes a front wheel bracket and a rear wheel bracket whose upper end can be rotatably arranged on the front wheel assembly, and a pair of the rear wheel brackets are respectively provided with The sliding sleeve that slides in the length direction, the left and right sides of the front end of the backrest bracket are respectively rotatably connected to a pair of sliding sleeves; the cloth sleeve is connected to a pair of front wheel brackets 1. On a pair of the rear wheel bracket and the backrest bracket, the cloth cover has a seat cushion part and a backrest part connected with the seat cushion part, and the front side of the seat cushion part is fixedly connected to the On the above-mentioned front wheel bracket, the rear side of the seat cushion is fixedly connected to a pair of the sliding sleeves, and the backrest is wrapped under the backrest bracket.

The relevant content in the above-mentioned technical scheme is explained as follows:

1. In the above solution, the backrest bracket includes a first backrest bar and a second backrest bar parallel to each other, a connecting rod group arranged between the first backrest bar and the second backrest bar and capable of being folded laterally, A pair of the sliding sleeves are respectively rotatably connected to the front ends of the first back bar and the second back bar.

2. In the above solution, the connecting rod set includes a first connecting rod and a third connecting rod whose ends are respectively connected to the first backrest rod in rotation, and whose ends are respectively connected to the second backrest rod. The second connecting rod and the fourth connecting rod are rotatably connected, the free end of the first connecting rod is rotatably connected with the free end of the fourth connecting rod, and the free end of the second connecting rod is connected with the free end of the fourth connecting rod. The free ends of the third connecting rod are rotatably connected, and the middle parts of the third connecting rod 25 and the fourth connecting rod 26 are hinged.

3. In the above solution, the cross-link includes a first cross-bar and a second cross-bar that are hinged to each other, and the front end of the first cross-bar is rotatably connected to the front wheel on the left side. On the bracket, the rear end of the first crossbar is rotatably connected to the rear wheel bracket on the right side, and the front end of the second crossbar is rotatably connected to the right side On the front wheel bracket, the rear end of the second cross bar is rotatably connected to the rear wheel bracket on the left side.

The working principle of the utility model is: the front end of the backrest bracket is set to slide up and down along a pair of rear wheel brackets, and the upper end and front end of the cloth cover are connected to the front wheel bracket respectively, and the lower part of the cloth cover is wrapped around the sliding sleeve and the backrest Below the bracket, when adjusting the height of the backrest, press the rear end of the front wheel bracket downward, and the rear wheel bracket will rotate relative to the front wheel bracket, due to the length of the seat cushion between the front wheel bracket and the rear wheel bracket It is fixed, so that the front part of the cloth cover pull slide and the backrest bracket can be moved up along the rear wheel bracket, so that the stroller can be transformed from the unfolded state to the semi-folded state.

Due to the application of the above-mentioned technical solutions, the utility model has the following advantages compared with the prior art: the utility model can realize multiple functions that the backrest bracket can be adjusted in height and folded under the condition of reducing two seat bars; In addition, when adjusting the backrest, only the rear end of the front wheel bracket needs to be pressed down to make the rear wheel bracket rotate around the front wheel bracket. At the same time, the backrest bracket changes from a sitting position to a half-lying position under the traction of the cloth cover So it is very convenient to use.

Description of drawings

Accompanying drawing 1 is the perspective view of the utility model;

Accompanying drawing 2 is the right side view of the utility model under the expanded state;

Accompanying drawing 3 is the right view of the utility model under the half-folded state;

Accompanying drawing 4 is the perspective view of the utility model in the folded state;

Accompanying drawing 5 is the right view of the utility model under the folded state;

Accompanying drawing 6 is the perspective view of the backrest bracket of the present utility model (the cart frame is in the unfolded state);

Accompanying drawing 7 is the perspective view of the back support of the utility model (the cart frame is in the folded state).

Among the above drawings: 1, front wheel bracket; 11, front wheel assembly; 2, backrest bracket; 21, the first backrest bar; 22, the second backrest bar; 23, the first connecting rod; 24, the second connecting rod; 25. The third connecting rod; 26. The fourth connecting rod; 3. Rear wheel bracket; 31. Rear wheel assembly; 4. Cloth cover; 5. Sliding sleeve; , the second crossbar; 1', the front wheel bracket; 3', the rear wheel bracket; 7, the connector.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and embodiments. The "upper" and "lower" positional relationships described in this specification correspond to the upper and lower positional relationships shown in the accompanying drawing 2, and the left side in the accompanying drawing 2 It is the "front" side described in the instructions, and the right side of the accompanying drawing 2 is the "rear" side described in the instructions. When the baby rides in the stroller, the baby's feet are located at the front of the stroller. The baby's head is located at the rear of the stroller, and the "left" and "right" sides mentioned in the instructions refer to the left and right sides of the baby when the baby is seated in the stroller.

Referring to accompanying drawing 1, a kind of children's stroller with adjustable backrest, it comprises foldable stroller frame, the cloth cover 4 that is connected on described stroller frame, is arranged on described stroller The front wheel assembly 11 and the rear wheel assembly 31 at the bottom of the frame, the push rate vehicle frame includes two symmetrical side brackets, a transverse link 6 and a backrest bracket 2 arranged between the two side brackets Each of the side brackets includes a front wheel bracket 1, a rear wheel bracket 3 whose upper end is rotatably connected to the front wheel bracket 2, and a pair of rear wheel brackets 3 are respectively provided with a The sliding sleeve 5 sliding in the longitudinal direction of the rear wheel bracket 3, the left and right sides of the front end of the backrest bracket 2 are respectively rotatably connected to a pair of the sliding sleeves 5, the rear end of the backrest bracket 2 Can rotate back and forth with respect to rear wheel support 3. The cloth cover 4 is connected between a pair of the front wheel brackets 1, a pair of the rear wheel brackets 3 and the backrest bracket 2, and the upper part of the cloth cover 4 is fixedly connected to the front wheel brackets 2 respectively. On the wheel bracket 1, the cloth cover 4 also has a seat cushion under the seat and a backrest connected to the seat cushion, and the front side of the seat cushion is fixedly connected to the front On the wheel bracket 1, the rear side of the seat cushion portion is fixedly connected to a pair of the sliding sleeves 5, and the backrest portion is wrapped under the backrest support 2.

Due to the rotatable arrangement between the rear wheel bracket 3 and the front wheel bracket 1, the cart frame has an unfolded state, a half-folded state and a folded state. When the stroller frame was in the unfolded state, as shown in Figure 2, the front end of the back support 2 was at the lower point A on the rear wheel support 3, and the baby was in a sitting position in the cloth cover 4; When it is necessary to convert the cart frame into a half-folded state, press the rear end of the front wheel bracket 1 downward to make the rear wheel bracket 3 rotate relative to the front wheel bracket 1, as shown in Figure 3 As shown, at this time, because the angle between the front wheel bracket 1 and the rear wheel bracket 3 becomes larger, the seat cushion of the cloth cover 4 is tensioned, so the cloth cover 4 will pull the sliding sleeve 5 upward along the rear wheel bracket 3 Slide, so that the front end of the backrest bracket 2 comes to the higher point B on the rear wheel bracket 3. At this time, the backrest bracket 2 is in a flat position; continue to press down on the rear end of the front wheel bracket 1 to make the push Car frame transforms into the folded state shown in accompanying drawing 4 and accompanying drawing 5, and cloth cover 4 also folds along with pushcart frame.

Preferably, in order to realize the transverse folding of the stroller frame, the backrest bracket 2 includes a first backrest bar 21 extending backward and a second backrest bar 22 parallel to the first backrest bar 21, arranged on the A connecting rod set between the first back bar 21 and the second back bar 22 that can be folded horizontally, and a pair of the sliding sleeves 5 are respectively rotatably connected to the front ends of the first back bar 21 and the second back bar 22 department. As shown in Figure 6, the connecting rod set includes a first connecting rod 23 and a third connecting rod 25, one end of which is rotatably connected to the first backrest rod 21, and one end of which is respectively connected to the first backrest rod 21. The second connecting rod 24 and the fourth connecting rod 26 of the two backrest rods 22 are rotatably connected, and the free end of the first connecting rod 23 is rotatably connected with the free end of the fourth connecting rod 26. The free end of the second connecting rod 24 is rotatably connected with the free end of the third connecting rod 25 , and the middle part of the third connecting rod 25 and the fourth connecting rod 26 are hinged. When the stroller frame is folded laterally, the first backrest bar 21 and the second backrest bar 22 of the backrest bracket 2 are close together, as shown in FIG. 7 .

Further, in order to meet the requirement of lateral folding of the trolley frame, the cross-link 6 includes a first cross-bar 61 and a second cross-bar 62 hinged to each other, and the front end of the first cross-bar 61 can Rotationally connected to the left side of the front wheel bracket 1, the rear end of the first cross bar 61 is rotatably connected to the right side of the described rear wheel bracket 3', the The front end of the second cross bar 62 is rotatably connected to the front wheel bracket 1' on the right, and the rear end of the second cross bar 62 is rotatably connected to the left side. On the rear wheel bracket 3 described above. In order to meet the requirement that the rear wheel bracket 3 can rotate along the front wheel bracket 1, both ends of the first cross bar 61 and the second cross bar 62 are connected to the front wheel bracket 1 and the rear wheel bracket 3 through the connecting piece 7, The front end and rear end of the first cross bar 61 and the second cross bar 62 are respectively rotatably connected to the connecting piece 7 , and the connecting piece 7 is rotatably connected to the front wheel bracket 1 or the rear wheel bracket 3 .

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 (4)

1. children trolley that backrest is adjustable, it comprises the go-cart vehicle frame, be connected the cloth cover on the described go-cart vehicle frame, be arranged on the front component and the wheel assembly of the bottom of described go-cart vehicle frame, described go-cart vehicle frame comprises symmetrical two side stands, be arranged on two tranverse connecting rod and back bracket between the described side stand, each described side stand comprises front-wheel support respectively, the rear wheel support that is arranged on the described front component can be rotated in the upper end, it is characterized in that: be respectively arranged with the sliding sleeve that can slide along the length direction of described rear wheel support on a pair of described rear wheel support, the left and right sides of the leading section of described back bracket can be connected on a pair of described sliding sleeve respectively rotationally; Described cloth cover is connected on a pair of described front-wheel support, a pair of described rear wheel support and the back bracket, the back-rest that described cloth cover has seat cushion portion and is connected with described seat cushion portion, the front side of described seat cushion portion is fixedly connected on the described front-wheel support, the rear side of described seat cushion portion is fixedly connected on a pair of described sliding sleeve, and described back-rest is wrapped in the below of described back bracket.

2. the adjustable children trolley of backrest according to claim 1, it is characterized in that: described back bracket comprises first back support bar and second back support bar that are parallel to each other, is arranged between described first back support bar and second back support bar and linkage rod group that can be laterally folded, and a pair of described sliding sleeve is rotatably connected on the leading section of described first back support bar and second back support bar respectively.

3. the adjustable children trolley of backrest according to claim 2, it is characterized in that: described linkage rod group comprise an end respectively with described first back support bar rotate bonded assembly first connecting rod and third connecting rod and an end respectively with described second back support bar rotate bonded assembly second connecting rod and the 4th connecting rod, the free end of the free end of described first connecting rod and described the 4th connecting rod rotates and is connected, the free end of described second connecting rod rotates with the free end of described third connecting rod and is connected, and the middle part of described third connecting rod and described the 4th connecting rod is hinged.

4. the adjustable children trolley of backrest according to claim 1, it is characterized in that: described tranverse connecting rod comprises first cross bar and second cross bar that is hinged, the leading section of described first cross bar can be connected on the described front-wheel support that is positioned at the left side rotationally, the rearward end of described first cross bar can be connected on the described rear wheel support that is positioned at the right side rotationally, the leading section of described second cross bar can be connected on the described front-wheel support that is positioned at the right side rotationally, and the rearward end of described second cross bar can be connected on the described rear wheel support that is positioned at the left side rotationally.

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