CN203111254U - Child cart - Google Patents

Abstract

The utility model discloses a child cart. The structure of a cart frame is optimized. When the frame is transformed from an unfolding state to a folding state, only locking mechanisms need to be unlocked, sliding pieces are made to slide along rear fulcrum bars, and thus connecting rods and oblique stay bars move upwards and make rotation along with the sliding pieces and drive front fulcrum bars to be shortened relative to push rods at the same time. The push rods rotate around the rear fulcrum bars to achieve folding of the frame in the front-back direction, and bottom stay bars move upwards along with the connecting rods simultaneously to achieve folding of the frame in the left-right direction. The child cart is simple and compact in structure, the frame can be folded and unfolded conveniently, and the cart frame is small in standing space and small in occupied space after being folded.

Description

a stroller for children

technical field

The utility model relates to a stroller for children.

Background technique

In the prior art, the frame of the children's stroller is generally provided with a seat bar so that the child's seat can be placed, but the seat often takes up a large space, and it is inconvenient to install and replace. In order to overcome the above disadvantages, the inventor proposes to replace the existing seat with a seat. In this way, it is necessary to optimize the overall frame structure of the stroller to obtain a new type of children's stroller with a compact structure, easy folding, and a small volume after folding. car.

Contents of the invention

The purpose of the utility model is to provide a baby stroller, which has a small self-supporting volume after being folded, and is very convenient to fold and unfold.

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 roller assembly arranged at the bottom of the frame, and a wheel assembly arranged on the frame for The locking mechanism is used to make the vehicle frame stably in the unfolded or folded state, the vehicle frame includes side brackets on both sides that can be folded relative to each other, a bottom support that connects the side brackets on both sides, and the side brackets on each side The side support includes a push rod, a front support rod telescopically arranged on the push rod in the axial direction, and a rear support rod whose upper end is rotatably connected to the push rod. The side support on each side also includes a sliding ground The sliding part arranged on the rear support rod, the connecting rod is rotatably connected between the sliding part and the front support rod, the connecting rod is rotatably provided with a diagonal strut, and the diagonal strut The other end is rotatably connected to the lower end of the rear support rod, the bottom support includes at least a pair of bottom support rods intersecting each other, and one end of the bottom support rod is rotatably connected to one side of the side support. On the rear support rod, the other end of the bottom support rod is rotatably connected to the connecting rod of the side support on the other side.

Preferably, the sliding member is slidably sleeved on the rear support rod.

Preferably, the push rod is provided with a cavity capable of accommodating the front strut in the axial direction, and one end of the front strut is slidably inserted in the cavity in the axial direction.

Preferably, the push rod is connected to the rear support rod through a first rotating shaft, and the connecting rod is connected to the slider and the front support rod through a second rotating shaft and a third rotating shaft respectively, so that The axis lines of the first rotating shaft, the second rotating shaft and the third rotating shaft respectively extend along the left and right horizontal directions of the cart.

Preferably, both ends of the bottom support rod are rotatably connected to the rear strut and the connecting rod through the fourth rotating shaft and the fifth rotating shaft respectively, and the axes of the fourth rotating shaft and the fifth rotating shaft The lines extend along the front and rear horizontal directions of the cart, respectively.

Preferably, the two ends of the diagonal brace are rotatably connected to the connecting rod and the rear strut through the sixth rotating shaft and the seventh rotating shaft respectively, and the axes of the sixth rotating shaft and the seventh rotating shaft The lines extend along the left and right horizontal directions of the cart, respectively.

Preferably, the roller assembly includes a front wheel assembly and a rear wheel assembly, and the front wheel assembly and the rear wheel assembly are respectively arranged at the bottom of the front bracket and the rear bracket.

Due to the application of the above-mentioned technical solution, the utility model has the following advantages compared with the prior art: A kind of children's stroller of the utility model, wherein by optimizing the structure of the stroller frame, when the frame needs to move from the unfolded state to the When the folding state is changed, it is only necessary to unlock the locking mechanism and slide the slider along the rear support rod, so that the connecting rod and the diagonal support rod will move upward and rotate accordingly, and at the same time drive the front support rod to shorten relative to the push rod. The push rod rotates around the rear support rod to realize the folding of the vehicle frame along the front-rear direction, and the bottom support rod simultaneously moves upward with the connecting rod to realize the folding of the vehicle frame in the left-right direction. The structure of the stroller is simple and compact, the frame is convenient to fold and unfold, and the folded stroller frame has a small self-supporting volume and takes up little space.

Description of drawings

Accompanying drawing 1 is the overall structure schematic diagram of the children's stroller of the present utility model;

Accompanying drawing 2 is the side view structure schematic diagram when the children's stroller of the present invention is in the unfolded state;

Accompanying drawing 3 is the side view structure schematic diagram when the children's stroller of the present invention is in the folded state;

Accompanying drawing 4 is the schematic structural diagram of the front view of the children's stroller of the present invention when it is in a half-folded state.

Among them: 1. Side support; 11. Push rod; 12. Rear support rod; 13. Front support rod; 14. Slider; 15. Connecting rod; 19, the third rotating shaft; 110, the sixth rotating shaft; 111, the seventh rotating shaft; 2, the roller assembly; 21, the front wheel assembly; 22, the rear wheel assembly; 3, the bottom support; 31, the bottom support rod; 32, The fourth rotating shaft; 33, the fifth rotating shaft.

Detailed ways

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

Referring to a kind of children's stroller shown in Figures 1 to 4, the stroller includes a frame with an unfolded state and a folded state, a roller assembly 2 arranged at the bottom of the frame, and a wheel assembly 2 arranged on the frame for stabilizing the frame. Locking mechanism (not shown) in unfolded or folded position. The vehicle frame includes relatively foldable side brackets 1 located on both sides, and a bottom support 3 connecting the side brackets 1 on both sides. The side bracket 1 on each side includes a push rod 11, a front strut 13, a rear strut 12, a slider 14, a connecting rod 15 and a diagonal strut 16, and the front strut 13 is telescopically arranged on the push rod 11 in the axial direction Here, the push rod 11 is provided with a cavity capable of accommodating the front strut 13 in the axial direction, and one end of the front strut 13 is slidably inserted in the cavity of the push rod 11 in the axial direction. The upper end of the rear support rod 12 is rotationally connected with the push rod 11 through the first rotating shaft 17, and the sliding member 14 is slidably sleeved on the rear support rod 12. In this embodiment, the locking mechanism is directly arranged to lock the sliding member 14. Lock or unlock, so that the slider 14 is fixed on the rear pole 12 or the slider 14 slides on the rear pole 12 . The connecting rod 15 is connected between the slider 14 and the front strut 13, one end of the connecting rod 15 is rotationally connected with the slider 14 through the second rotating shaft 18, and the other end of the connecting rod 15 is rotationally connected to the front strut through the third rotating shaft 19. The lower part of 13. One end of the diagonal strut 16 is rotatably connected to the connecting rod 15 through the sixth rotating shaft 110, and its other end is rotatably connected to the bottom of the rear strut 12 through the seventh rotating shaft 111. The above-mentioned first rotating shaft 17, second rotating shaft 18, The axis lines of the third rotating shaft 19 , the sixth rotating shaft 110 and the seventh rotating shaft 111 are respectively distributed along the left and right horizontal directions of the cart.

Referring to Fig. 1 and Fig. 4, the bottom support 3 includes at least one pair of cross-arranged bottom braces 31. In this embodiment, the bottom braces 31 are a pair, and one end of each bottom brace 31 passes through the fourth rotating shaft 32 is rotatably connected to the rear support rod 12 of one side bracket 1, and its other end is rotatably connected to the connecting rod 15 of the other side bracket 1 through the fifth rotating shaft 33, the fourth rotating shaft 32, the fifth rotating shaft The axis lines of 33 are all distributed along the front and rear horizontal directions of the cart. Referring to FIGS. 1-4 , the roller assembly 2 includes a front wheel assembly 21 and a rear wheel assembly 22 , and the front wheel assembly 21 and the rear wheel assembly 23 are respectively arranged at the bottom of the front bracket 13 and the rear bracket 12 .

The specific work process of the present embodiment is described in detail below:

Referring to Fig. 1 and Fig. 2, when the vehicle frame is in the unfolded state, the slider 14 is locked on the rear bracket 12 by the locking mechanism, and the pull rod 15 and the diagonal strut 16 jointly form a pair of front struts 13 and rear struts. The stable support of 12 makes the side bracket 1 unfold along the front and back direction of the cart, and at the same time, the bottom brace 31 is stably supported between the rear bracket 12 and the connecting rod 15 on the side brackets 1 on both sides, so that the side brackets 1 on both sides unfold along the left and right direction; when the vehicle frame needs to be folded up, the locking state of the sliding piece 14 is first released through the locking mechanism, and the sliding piece 14 slides upward along the axial direction of the rear strut 12, and the sliding piece 14 drives The connecting rod 15 moves upward, the connecting rod 15 drives the diagonal strut 16 to rotate, and drives the front support rod 13 to shorten axially relative to the push rod 11, and the push rod 11 rotates relative to the rear support rod 12, which makes the side bracket 1 move forward and backward The direction realizes folding; Simultaneously, the upward movement of the connecting rod 15 makes the end of the bottom strut 31 connected to the connecting rod 15 move up, which makes the distance between the two ends of the bottom strut 31 along the horizontal left-right direction smaller and smaller, as As shown in FIG. 4 , the side brackets 1 on both sides are finally brought together along the horizontal left and right directions to realize the folding of the vehicle frame in the left and right directions. The folded cart is shown in FIG. 3 . The structure of the stroller is simple and compact, the frame is convenient to fold and unfold, and the folded stroller frame has a small self-supporting volume and takes up little space.

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 (7)

1. children trolley, comprise the vehicle frame with deployed condition and folded state, be arranged on the roll wheel assembly of described bottom of frame, be arranged on and be used on the described vehicle frame making described vehicle frame stably be in the catch gear of deployed condition or folded state, described vehicle frame comprises and is positioned at the side stand that both sides can fold relatively, the end that connects described both sides side stand, supported, it is characterized in that: the described side stand of every side comprises push rod, telescopically be arranged on the front support rod on the described push rod vertically, the upper end is connected the back stay on the described push rod rotationally, the described side stand of every side also comprises the sliding part that is slidingly arranged on the described back stay, be connected with connecting rod rotationally between described sliding part and the described front support rod, be provided with hound on the described connecting rod rotationally, the other end of described hound is connected on the bottom of described back stay rotationally, support and comprise at least one pair of bottom supporting rod arranged in a crossed manner mutually at the described end, one end of described bottom supporting rod is connected on the described back stay of the described side stand of a side rotationally, and the other end of described bottom supporting rod is connected on the described connecting rod of the described side stand of opposite side rotationally.

2. a kind of children trolley according to claim 1, it is characterized in that: described sliding part is set on the described back stay slidably.

3. a kind of children trolley according to claim 1, it is characterized in that: offer the cavity volume that can accommodate described front support rod vertically on the described push rod, an end of described front support rod is located in the described cavity volume vertically slidably.

4. a kind of children trolley according to claim 1, it is characterized in that: described push rod is transferred by first rotating shaft mutually with described back stay, described connecting rod is transferred by second rotating shaft, the 3rd rotating shaft respectively mutually with described sliding part, described front support rod, and the axial line of described first rotating shaft, described second rotating shaft, described the 3rd rotating shaft extends along the left and right horizontal direction of described go-cart respectively.

5. a kind of children trolley according to claim 1, it is characterized in that: described bottom supporting rod has a pair of, the two ends of each described bottom supporting rod are connected on described back stay, the described connecting rod rotationally by the 4th rotating shaft, the 5th rotating shaft respectively, and the axial line of described the 4th rotating shaft, described the 5th rotating shaft extends along the front and back horizontal direction of described go-cart respectively.

6. a kind of children trolley according to claim 1, it is characterized in that: the two ends of described hound are connected on described connecting rod, the described back stay rotationally by the 6th rotating shaft, the 7th rotating shaft respectively, and the axial line of described the 6th rotating shaft, described the 7th rotating shaft extends along the left and right horizontal direction of described go-cart respectively.

7. a kind of children trolley according to claim 1, it is characterized in that: described roll wheel assembly comprises front component, wheel assembly, described front component, described wheel assembly are separately positioned on the bottom of described front frame, described after poppet.

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