CN205554273U - Child cart - Google Patents

Abstract

The utility model relates to a stroller for children. The stroller includes a stroller frame, and the stroller frame includes a rear wheel support and a rear support frame. The rear wheel bracket includes a first rear bracket and a second rear bracket, and the rear bracket includes a first cross brace, a second cross brace, a diagonal brace, a first sliding member that is slidably connected with the first rear bracket, and a first slider connected with the first rear bracket. The second sliding part that is slidably connected to the rear bracket, one end of the first cross brace is rotatably connected to the second rear bracket, the other end is rotatably connected to the first slider, one end of the second cross brace is rotatably connected to the second rear bracket, and the other end is rotatably connected to the second rear bracket. It is rotatably connected with the first sliding part, the upper end of the diagonal brace is rotatably connected with the second sliding part, and the lower end is rotatably connected with the second rear bracket. The rear wheel bracket can be folded horizontally by adopting the rear support frame that can be folded horizontally. After folding, the structure of the stroller is more compact and occupies a small volume; The horizontal folding/expanding of the support frame has a simple folding process and is convenient for operation.

Description

a stroller for children

technical field

The utility model relates to a stroller .

Background technique

Currently, common strollers include A frame having an unfolded state and a folded state, a front wheel disposed at the front under the frame, a rear wheel disposed at the rear under the frame, and a locking device for locking the frame in the unfolded state . The frame of this kind of children's stroller can only be folded forward and backward. The folded children's stroller is still large in size, loose in structure, and inconvenient to carry. Moreover, the frame structures of such strollers are relatively complicated and inconvenient to fold.

Utility model content

The technical problem to be solved by the utility model is to provide a simple structure, convenient folding, horizontal folding, and small volume after folding. stroller .

In order to solve the above-mentioned technical problems, a technical solution adopted by the utility model is: a children's stroller, including a stroller frame in an unfolded state and a folded state, a front wheel assembly, a rear wheel assembly and a mechanism for locking the stroller frame In the locking mechanism in the unfolded state, the cart frame includes a front wheel bracket on which the front wheel assembly is installed at the bottom, a rear wheel bracket and a push rod on which the rear wheel assembly is installed on the bottom, and the lower part of the push rod It is rotatably connected with the upper part of the front wheel support, and the upper part of the rear wheel support is rotatably connected with the push rod through a pivot. The rear wheel support includes a first rear support and a second rear support arranged on both sides of the rear of the stroller, and the stroller frame also includes a rear support arranged between the first rear support and the second rear support frame, the rear support frame includes a first cross brace, a second cross brace, a diagonal brace, a first sliding piece slidably connected with the first rear support and a second sliding piece slidably connected with the first rear support, Both the first slider and the second slider can slide along the length direction of the first rear bracket, one end of the first cross brace is rotatably connected to the second rear bracket, and the other end is rotatably connected to the first slider, so The second cross brace is located below the first cross brace, one end of the second cross brace is rotatably connected to the second rear bracket, and the other end is rotatably connected to the first slider, and the second slider is located on the first Between the connection between the cross brace and the first slider and the connection between the second cross brace and the first slider, the upper end of the diagonal brace is rotatably connected to the second slider, and the lower end is connected to the second cross brace. Turn to connect.

Specifically, both the first sliding member and the second sliding member are sliding sleeve structures, the first sliding member is sleeved on the first rear support and can slide up and down along the length direction of the first rear support, and the first The two sliding parts are sheathed on the first sliding part and the first rear bracket and can slide up and down along the first sliding part and the first rear bracket.

Specifically, the lower end of the diagonal brace is rotatably connected to the middle part of the second cross brace, and the upper end is pivotally connected to the second slider. The second brace, the diagonal brace, the second slider and the first A rear bracket forms the slider crank structure.

Preferably, the lower part of the first sliding member is fixedly provided with a footrest.

Specifically, when the stroller frame is in the unfolded state, the second cross brace, the first rear bracket and the diagonal brace form a right triangle.

Further, the locking mechanism includes a locking device for preventing the first sliding member from sliding upward along the first rear bracket and a locking device arranged on the first rear bracket for preventing the first sliding member from sliding downward along the first rear bracket. limit pieces.

Specifically, when the pushcart frame is in the unfolded state, the lower part of the first sliding member abuts against the limiting member.

Preferably, the locking mechanism includes a locking device for preventing the first sliding member from sliding upwards along the first rear bracket, the locking device includes a lock tongue and an elastic member, and the side of the first rear bracket is provided with opening, the lock tongue is installed inside the first rear bracket and can protrude the first rear bracket from the opening, and the elastic member is pressed between the lock tongue and the first rear bracket, when the pushcart frame is in the In the unfolded state, the locking device is in a locked state, and the locking tongue protrudes from the side of the first rear bracket and abuts against the upper portion of the first sliding member.

Further, the locking mechanism further includes an unlocking device for unlocking the locking device, and the unlocking device is installed on the first rear bracket.

Specifically, the locking mechanism also includes an unlocking device for unlocking the locking device. The unlocking device includes an unlocking handle installed on the upper end of the first rear bracket and a traction cable installed inside the first rear bracket. The unlocking The handle is connected with the deadbolt through a traction cable, and the unlocking handle is pulled, and the unlocking handle drives the deadbolt to move toward the inside of the first rear bracket through the traction cable.

The orientation words such as front, rear, left, right, up, and down mentioned above are defined in the normal use orientation of the stroller.

The scope of the present utility model is not limited to technical solutions formed by a specific combination of the above technical features, but also covers other technical solutions formed by any combination of the above technical features or equivalent features. For example, technical solutions formed by replacing the above-mentioned features with technical features with similar functions disclosed in this application, etc.

Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art: the rear wheel bracket can be folded horizontally by adopting the rear support frame that can be folded horizontally, and the structure of the folded children's stroller is more compact and occupies a small volume ; The horizontal folding/expanding of the rear wheel bracket and the rear support frame can be realized by sliding up/down of the first sliding member, and the folding process is simple and easy to operate. The rear support frame has few components and simple structure.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram when the children's stroller of the present invention is in the unfolded state;

Fig. 2 is a rear view of the utility model when the children's stroller is in an unfolded state;

Fig. 3 is a three-dimensional structural schematic diagram of the rear wheel bracket and the rear support frame;

Fig. 4 is the partially enlarged schematic diagram of place A in Fig. 3;

Figure 5 is a front view of the rear wheel bracket and the rear support frame in a partially expanded state;

Fig. 6 is a front view of the rear wheel bracket and the rear support frame in a partially folded state;

Fig. 7 is the front view of the partially folded state of the rear wheel support and the rear support frame;

Among them: 1. Front wheel bracket; 2. Rear wheel bracket; 3. Push rod; 4. First cross brace; 5. Second cross brace; 6. Diagonal brace; 7. First sliding member; 8. 9, pedal piece; 10, deadbolt; 11, unlocking handle; 12, front wheel assembly; 13, rear wheel assembly; 21, first rear support; 22, second rear support.

detailed description

As shown in Figures 1 to 7, a children's stroller described in the utility model includes a stroller frame in an unfolded state and a folded state, a front wheel assembly 12, a rear wheel assembly 13 and a mechanism for locking the stroller frame. Locking mechanism in unfolded state. The cart frame includes a front wheel support 1 with the front wheel assembly 12 installed at the bottom, a rear wheel support 2 with the rear wheel assembly 13 at the bottom, and a push rod 3 . The bottom of the push rod 3 is rotatably connected to the top of the front wheel bracket 1, and the top of the rear wheel bracket 2 is rotatably connected to the top of the push rod 3 through a pivot. The rear wheel support 2 includes a first rear support 21 and a second rear support 22 respectively arranged on both sides of the rear of the stroller. The trolley frame also includes a rear support frame arranged between the first rear support 21 and the second rear support 22 . The rear support frame can be folded laterally. The rear support frame includes a first cross strut 4, a second cross strut 5, a diagonal strut 6, a first sliding member 7 slidably connected with the first rear support 21, and a first sliding member 7 slidably connected with the first rear support 21. Two sliders 8 . Both the first sliding member 7 and the second sliding member can slide along the length direction of the first rear bracket 21 . In this embodiment, both the first sliding member 7 and the second sliding member 8 are of sliding sleeve structure, and the first sliding member 7 is an elongated sliding sleeve. The first slider 7 is sleeved on the first rear bracket 21 and can slide up and down along the length direction of the first rear bracket 21, and the second slider 8 is sleeved on the first slider 7 and the first rear bracket. 21 and can slide up and down along the first sliding member 7 and the first rear bracket 21. The lower part of the first sliding member 7 is fixedly provided with a pedal member 9 for the user to step on.

One end of the first cross brace 4 is rotatably connected to the second rear bracket 22 , and the other end is rotatably connected to the first sliding member 7 . The second cross brace 5 is located below the first cross brace 4 , one end of the second cross brace 5 is rotatably connected to the second rear bracket 22 , and the other end is rotatably connected to the first sliding member 7 . The second sliding piece 8 is located between the connection of the first cross brace 4 and the first sliding piece 7 and the connection of the second cross brace 5 and the first sliding piece 7 . The upper end of the diagonal brace 6 is rotatably connected with the second sliding member 8 through a pivot, and the lower end is rotatably connected with the middle part of the second cross brace 5 . The second cross brace 5 , the diagonal brace 6 , the second sliding member 8 and the first rear bracket 21 form a slider crank structure. When the stroller frame is in the unfolded state, the second cross strut 5 , the first rear support 21 and the diagonal strut 6 form a right triangle.

The locking mechanism includes a locking device for preventing the first sliding member 7 from sliding upward along the first rear bracket 21 and is arranged on the first rear bracket 21 for preventing the first sliding member 7 from sliding upward along the first rear bracket 21. The limit piece for sliding down. When the cart frame is in the expanded state, the lower part of the first sliding member 7 abuts against the limiting member. The limiting member used in this embodiment is a limiting pin (not shown in the figure). The lower part of the first rear bracket 21 defines a limiting hole, and the limiting pin is inserted into the limiting hole to abut against the lower part of the first sliding part 7 to prevent the first sliding part 7 from sliding downward.

In this embodiment, the locking device includes a lock tongue 10 and an elastic member (not shown). The side of the first rear bracket 21 is provided with an opening, the lock tongue 10 is installed inside the first rear bracket 21 and can extend out of the first rear bracket 21 from the opening, and the elastic member is against the lock tongue 10 and the first rear bracket 21, when the cart frame is in the unfolded state, the locking device is in the locked state, and the dead bolt 10 protrudes from the side of the first rear bracket 21 and slides with the first The upper part of piece 7 offsets.

The locking mechanism also includes unlocking means for unlocking the locking means. In this embodiment, the unlocking device includes an unlocking handle 11 installed on the upper end of the first rear bracket 21 and a drag cable (not shown) installed inside the first rear bracket 21 . The unlocking handle 11 is connected with the deadbolt 10 through a traction cable, and the unlocking handle 11 is pulled, and the unlocking handle 11 drives the deadbolt 10 to move inside the first rear bracket 21 through the traction cable.

In this embodiment, the settings of other components of the stroller are conventional in the field, and will not be described in detail here.

The opening method of the children's stroller of this embodiment is as follows: step on the pedal member 9 and force the first sliding member 7 to slide downward, and the first sliding member 7 passes through the first cross brace 4 and the second cross brace 5 Drive the second rear bracket 22 to expand laterally. The second sliding member 8 also slides relatively on the first rear bracket 21 during the sliding process of the first sliding member 7 . When the first slider 7 slides over the position of the deadbolt 10 in the first rear bracket 21, the deadbolt 10 pops up and blocks the upper part of the first slider 7. At this time, the first slider 7 cannot slide upwards; The lower part of a sliding part 7 also abuts against the limiting part so that the first sliding part 7 cannot slide downward. The first cross brace 4 and the second cross brace 5 are in a horizontal posture. At this time, the second slider 8 , the diagonal brace 6 , the second cross brace 5 and the first slider 7 form a stable right triangle, and the cart frame is locked and unfolded, as shown in FIG. 5 .

The folding method of the children's stroller in this embodiment is as follows: pull the unlocking handle 11 , and the lock tongue 10 shrinks back to the inside of the first rear bracket 21 driven by the traction cable. Stir up the pedal part 9 with the foot to make the first sliding part 7 slide upwards, and the first sliding part 7 drives the second rear support 22 to fold laterally with the first rear support through the first cross strut 4 and the second cross strut 5 . The brackets 21 move closer together, the second sliding member 8 slides upwards driven by the second cross brace 5 , and finally the cart frame is in a folded state, as shown in FIG. 7 .

As mentioned above, the folding and opening operation of the children's stroller described in the utility model is simple and convenient.

As mentioned above, we have fully described according to the purpose of the utility model, but the utility model is not limited to the above-mentioned embodiment and implementation method. Practitioners in the relevant technical fields can make different changes and implementations within the scope permitted by the technical ideas of the present utility model.

Claims (10)

1. A stroller for children, comprising a stroller frame with an unfolded state and a folded state, a front wheel assembly (12), a rear wheel assembly (13) and a locking mechanism for locking the stroller frame in the unfolded state, the The cart frame includes a front wheel bracket (1) with the front wheel assembly (12) installed at the bottom, a rear wheel bracket (2) with the rear wheel assembly (13) at the bottom, and a push rod (3), The lower part of the push rod (3) is rotatably connected to the upper part of the front wheel bracket (1), and the upper part of the rear wheel bracket (2) is rotatably connected to the push rod (3) through a pivot. The wheel bracket (2) includes a first rear bracket (21) and a second rear bracket (22) arranged on both sides of the rear of the stroller, and the stroller frame also includes a first rear bracket (21) and a second rear bracket (22). The rear support frame between the second rear supports (22), the rear support frame includes the first cross brace (4), the second cross brace (5), the diagonal brace (6), and the first rear support (21) The first slider (7) that is slidably connected and the second slider (8) that is slidably connected with the first rear bracket (21), the first slider (7) and the second slider (8) All can slide along the length direction of the first rear bracket (21), one end of the first cross brace (4) is rotatably connected to the second rear bracket (22), and the other end is rotatably connected to the first sliding member (7), The second cross brace (5) is located below the first cross brace (4), one end of the second cross brace (5) is rotationally connected to the second rear bracket (22), and the other end is connected to the first sliding part (7) is rotationally connected, and the second sliding part (8) is located at the joint between the first cross brace (4) and the first sliding part (7) and the second cross brace (5) and the first sliding part Between the joints of (7), the upper end of the diagonal brace (6) is rotatably connected to the second sliding member (8), and the lower end is rotatably connected to the second cross brace (5). 2. A stroller for children according to claim 1, characterized in that: the first sliding part (7) and the second sliding part (8) are both sliding sleeve structures, and the first sliding part (7) ) is sleeved on the first rear bracket (21) and can slide up and down along the length direction of the first rear bracket (21), and the second slider (8) is sleeved on the first slider (7) and the first on the rear bracket (21), and can slide up and down along the first sliding piece (7) and the first rear bracket (21). 3. A stroller for children according to claim 1, characterized in that: the lower end of the diagonal strut (6) is rotatably connected with the middle part of the second cross strut (5), and the upper end is connected with the second sliding member (8) ) are connected by pivoting, and the second cross brace (5), the diagonal brace (6), the second slider (8) and the first rear bracket (21) form a crank slider structure. 4. The stroller for children according to claim 1, characterized in that: a footrest (9) is fixedly arranged on the lower part of the first sliding member (7). 5. A stroller for children according to claim 1, characterized in that: when the stroller frame is in the unfolded state, the second cross brace (5), the first rear bracket (21) and the diagonal brace (6) Form a right triangle. 6. A stroller for children according to claim 1, characterized in that: the locking mechanism includes a locking device for preventing the first sliding member (7) from sliding upward along the first rear bracket (21) and A limiting member arranged on the first rear bracket (21) for preventing the first sliding member (7) from sliding downward along the first rear bracket (21). 7. The stroller for children according to claim 6, characterized in that, when the stroller frame is in the unfolded state, the lower part of the first sliding member (7) abuts against the limiting member. 8. A stroller for children according to claim 1, characterized in that: the locking mechanism includes a locking device for preventing the first sliding member (7) from sliding upward along the first rear bracket (21), The locking device includes a lock tongue (10) and an elastic member, an opening is opened on the side of the first rear bracket (21), and the lock tongue (10) is installed inside the first rear bracket (21) and can The first rear bracket (21) protrudes from the opening, and the elastic member is pressed between the lock tongue (10) and the first rear bracket (21). When the cart frame is in the unfolded state, the locking When the device is in a locked state, the locking tongue (10) protrudes from the side of the first rear support (21) and abuts against the upper part of the first sliding piece (7). 9. A children's stroller according to claim 6 or 8, characterized in that: the locking mechanism further comprises an unlocking device for unlocking the locking device, and the unlocking device is mounted on the first rear bracket (21 )superior. 10. A stroller for children according to claim 8, characterized in that: the locking mechanism further includes an unlocking device for unlocking the locking device, and the unlocking device includes a The unlocking handle (11) at the upper end and the traction cable installed inside the first rear bracket (21), the unlocking handle (11) is connected with the deadbolt (10) through the traction cable, pull the unlocking handle (11), and the unlocking handle ( 11) Drive the lock tongue (10) to move inside the first rear bracket (21) through the traction cable.