CN205554276U - Child cart - Google Patents

Abstract

The utility model relates to a child cart, including the shallow frame, front wheel subassembly, the rear wheel subassembly that have folding and development condition and be used for with push away the locking mechanical system of frame lock in development condition, the shallow frame includes that the tip is equipped with down front wheel support, the lower tip of front wheel subassembly are equipped with the rear wheel support and the setting of sliding of rear wheel subassembly are in push rod on the front wheel support, the upper end of front wheel support with the upper portion of rear wheel support is rotated and is connected, shallow frame still include preceding tip with the lower tip of push rod rotates the pull rod of connecting, the back tip of pull rod with the lower part of rear wheel support is rotated and is connected, works as when the shallow frame is folding, follow the upper end of front wheel support the push rod is in the push rod is relative with the top of the junction of pull rod the push rod upwards slides, the rear wheel support is in the drive of pull rod down to the push rod is drawn close. Nimble, convenient, the easy use of folding operations of this shallow. Folding back shallow is small.

Description

a stroller for children

technical field

The utility model relates to the field of children's products, in particular to a children's stroller.

Background technique

In the prior art, a children's stroller generally includes a stroller frame having an unfolded state and a folded state, a front wheel assembly and a rear wheel assembly, and the stroller frame is locked by a locking mechanism when it is in the unfolded state. At present, there are many structures that can make the stroller frame foldable, and how to make the folding operation of the stroller frame more flexible, simple, convenient, smaller in size after folding, and easy to use has always been the goal pursued in the field of children's strollers.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an improved stroller for children.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A stroller for children, comprising a stroller frame with a folded and unfolded state, a front wheel assembly, a rear wheel assembly and a locking mechanism for locking the stroller frame in the unfolded state, the stroller frame includes a lower end device There is a front wheel bracket of the front wheel assembly, a rear wheel bracket with the rear wheel assembly on the lower end and a push rod slidably arranged on the front wheel bracket, the upper end of the front wheel bracket is connected to the rear wheel bracket. The upper part of the wheel support is rotatably connected, and the trolley frame also includes a pull rod whose front end is rotatably connected to the lower end of the push rod, and the rear end of the pull rod is rotatably connected to the lower part of the rear wheel support. When the cart frame is folded, the upper end of the front wheel bracket slides upward relative to the push rod along the push rod above the junction of the push rod and the pull rod, and the rear wheel bracket is driven by the pull rod Move closer to the push rod.

Preferably, the front wheel bracket includes a front wheel bracket body with the front wheel assembly on the lower end and a connecting sleeve fixedly arranged on the upper end of the front wheel bracket body, and the rear wheel bracket rotates with the connecting sleeve connected, the push rod can slide through the connecting sleeve.

More preferably, the push rod includes a lower push rod that can slide through the connecting sleeve and an upper push rod that is slidably arranged on the lower push rod along the length direction of the lower push rod, and the pull rod It is rotatably connected with the lower end of the lower push rod.

Specifically, when the cart frame is folded, the lower push rod slides downward along the connecting sleeve, and the connecting sleeve is pushed from the lower part of the lower push rod to the lower push rod relative to the lower push rod. The upper part of bar slides, and described rear wheel bracket draws close to described lower push bar.

Specifically, the upper end and the lower end of the lower push rod are respectively provided with a first stopper and a second stopper for preventing the connecting sleeve from detaching from the lower pushrod.

Preferably, the rotation axis of the rear wheel support and the front wheel support, the rotation axis of the pull rod and the push rod, and the rotation axis of the pull rod and the rear wheel support parallel.

Preferably, the rear wheel bracket is an arc-shaped bent rod.

More preferably, the rear wheel bracket includes a first section extending obliquely from front to rear and from top to bottom, and a second section bent and extending downward from the rear end of the first section, the first section There is an included angle greater than 90° with the second section, the front wheel bracket is rotatably connected to the front end of the first section, and the tie rod is rotatably connected to the second section.

Specifically, the rear wheel bracket further includes an extension section extending forward from the front end of the first section along the length direction of the first section.

Preferably, when the trolley frame is in the unfolded state, the rotational connection between the rear wheel support and the front wheel support is located above the rotational connection between the push rod and the pull rod.

The cart frame includes symmetrically arranged side brackets located on both sides of the cart, each of which includes the push rod, front wheel bracket, rear wheel bracket and pull rod, and the cart frame also includes side link between the side brackets.

Due to the application of the above-mentioned technical solutions, the utility model has the following advantages compared with the prior art:

When the children's stroller of the utility model is folded, the upper end of the front wheel bracket slides upwards relative to the push rod along the push rod above the junction of the push rod and the pull rod, and the rear wheel bracket moves closer to the push rod under the drive of the pull rod. The operation is flexible, convenient and easy to use. The stroller is small in size when folded.

Description of drawings

Fig. 1 is a side view when the stroller is in an unfolded state;

Fig. 2 is a perspective view when the stroller is in an unfolded state;

Fig. 3 is a side view when the stroller is in a half-folded state;

Fig. 4 is a perspective view when the stroller is in a half-folded state;

Fig. 5 is a side view when the stroller is in a folded state;

Fig. 6 is a perspective view when the stroller is in a folded state;

Fig. 7 is a side view when the stroller is in a half-expanded state;

Fig. 8 is a perspective view when the stroller is in a half-expanded state;

In the figure: 1. Front wheel assembly; 2. Rear wheel assembly; 3. Front wheel support; 31. Front wheel support body; 32. Connecting sleeve; 4. Rear wheel support; 41. First section; 42. Second section ; 43, extension section; 5, push rod; 51, upper push rod; 52, lower push rod; 6, pull rod; 7, first limiting part; 8, second limiting part; 9, first connecting rod; 10, the second connecting rod; 11, the third connecting rod.

detailed description

The utility model is further described below in conjunction with the accompanying drawings of the description:

As shown in Figures 1 to 8, a stroller for children includes a stroller frame in a folded and unfolded state, a front wheel assembly 1, a rear wheel assembly 2, and a locking mechanism for locking the stroller frame in an unfolded state. The vehicle frame includes symmetrically arranged side supports located on both sides of the cart, each side support includes a front wheel support 3 with a front wheel assembly 1 at the lower end, a rear wheel support 4 with a rear wheel assembly 2 at the lower end, and a sliding arrangement on the The push rod 5 on the front wheel support 3, the upper end of the front wheel support 3 is connected with the top of the rear wheel support 4 in rotation, and each side support also includes the pull rod 6 that the front end is connected with the lower end of the push rod 5 in rotation, and the bottom of the pull rod 6 The rear end is rotationally connected with the bottom of the rear wheel bracket 4. When the cart frame is folded, the upper end of the front wheel bracket 3 slides upwards relative to the push rod 5 above the junction of the push rod 5 and the pull rod 6 along the push rod 5. The wheel support 4 draws closer to the push rod 5 under the drive of the pull rod 6 .

In this embodiment, the extension line in the longitudinal direction of the push rod 5 of the children's stroller intersects the extension line in the longitudinal direction of the front wheel bracket 3 .

The front wheel bracket 3 of the present utility model comprises the front wheel bracket body 31 that is provided with the front wheel assembly 1 at the lower end and the connection sleeve 32 fixedly arranged on the upper end of the front wheel bracket body 31, the rear wheel bracket 4 is rotationally connected with the connection sleeve 32, pushes The rod 5 is slidably passed through the connecting sleeve 32 . Specifically, the push rod 5 includes a lower push rod 52 that can slide through the connecting sleeve 32 and an upper push rod 51 that is slidably arranged on the lower push rod 52 along the length direction of the lower push rod 52 . The lower end of the rotary connection.

When the stroller frame is in the unfolded state, the rotational connection between the rear wheel bracket 4 and the connecting sleeve 32 is above the rotational connection between the lower push rod 52 and the pull rod 6 .

The axis of rotation of the rear wheel support 4 and the connecting sleeve 32, the axis of rotation of the pull bar 6 and the lower push rod 52 and the axis of rotation of the pull bar 6 and the rear wheel support 4 are parallel.

Specifically, the upper end and the lower end of the lower push rod 52 are respectively provided with a first limiting portion 7 and a second limiting portion 8 for preventing the connection sleeve 32 from detaching from the lower push rod 52 .

The lower push rod 52 has a hollow inner cavity, and the upper push rod 51 is slidably disposed in the inner cavity of the lower push rod 52 .

When the cart frame of the push cart of the utility model is folded, the lower push rod 52 slides downward along the connection sleeve 32, and the connection sleeve 32 slides from the bottom of the lower push rod 52 to the top of the push rod 52 relative to the lower push rod 52, and then The wheel support 4 draws closer to the downward push rod 52 under the drive of the pull rod 6 .

The rear wheel support 4 of the utility model cart is an arc bent bar. Specifically, the rear wheel bracket 4 includes a first section 41 extending obliquely from the front to the rear and from top to bottom, and a second section 42 bent and extending downward from the rear end of the first section 41. The first section 41 and the second section There is an angle greater than 90° between the two sections 42 , the connecting sleeve 32 is rotatably connected to the front end of the first section 41 , and the pull rod 6 is rotatably connected to the second section 42 .

The rear wheel bracket 4 further includes an extension section 43 extending forward from the front end of the first section 41 along the length direction of the first section 41 . In a specific embodiment, the first section 41 and the extension section 43 can be used together to form a seatpost of the stroller, and the extension section 43 can also be used as a seatpost of the stroller.

The push cart frame of the push cart of the utility model also includes a connecting rod connected between the side supports on both sides. Specifically, the connecting rod includes a first connecting rod 9 whose two ends are respectively connected to the front wheel bracket bodies 31 on both sides, a second connecting rod 10 whose two ends are respectively connected to the rear wheel brackets on both sides, and two ends respectively connected to the two sides. The third connecting rod 11 connected by push rod 51 on the side.

The locking mechanism of the present utility model may be a first locking mechanism that locks the upper push rod 51 and the lower push rod 52 and a second locking mechanism that locks the lower push rod 52 and the connecting sleeve 32, or it may be that the upper push rod 51 , a locking mechanism in which the lower push rod 52 and the connecting sleeve 32 are simultaneously locked, or other locking mechanisms.

When the cart frame of the push cart of the present utility model is in the unfolded state, the lower end of the upper push rod 51 is located at the top of the lower push rod 52, and the connecting sleeve 32 is located at the bottom of the lower push rod 52. The rotation of the rear wheel bracket 4 and the connecting sleeve 32 The joint is located above the rotational connection between the lower push rod 52 and the pull rod 6; On the top, the rear wheel bracket 4 pushes down the push rod 52 and moves closer.

The folding and unfolding principle of the children's stroller of the utility model:

As shown in Figures 1 to 4, the children's stroller is in the unfolded state, the lower end of the upper push rod 51 is located at the top of the lower push rod 52, the connecting sleeve 32 is located at the bottom of the lower push rod 52, and the locking mechanism locks the stroller frame in the unfolded state. state. When the stroller needs to be folded, unlock the locking mechanism, push the upper push rod 51 downward, and the lower push rod 52 slides downward along the connection sleeve 32, and the connection sleeve 32 moves downward from the bottom of the lower push rod 52 relative to the lower push rod 52 The upper part of the push rod 52 slides, and the front end of the pull rod 6 moves downward due to the downward movement of the lower push rod 52, and then pulls the rear wheel bracket 4 to move down the push rod 52, and continues to push the upper push rod 51 downward to make the upper push rod 51 move downward. The lower end of the rod 51 slides to the bottom of the lower push rod 52 to complete the folding. The fully folded cart is shown in FIGS. The connecting sleeve 32 is positioned at the top of the lower push rod 52, and the rear wheel support 4 draws closer to the lower push rod 51, so that the folding volume of the whole vehicle is small.

When the cart needs to be unfolded, as shown in Figures 7 to 8, the upper push rod 51 is pulled upwards to drive the lower push rod 52 to move upward along the connecting sleeve 32, and the connecting sleeve 32 moves from the upper part of the lower push rod 52 to the lower push rod 52 relative to the lower push rod 52. The bottom of the lower push rod 52 slides, and the front end of the pull rod 6 moves upward due to the upward movement of the lower push rod 52, and then pulls the rear wheel support 4 to expand in a direction away from the lower push rod 52, and continues to pull the upper push rod 51 upward to make the upper push rod 51 move upward. The lower end of the push rod 51 slides to the top of the lower push rod 52 to complete the deployment of the cart frame, and then utilize the locking mechanism to lock the cart frame in the unfolded state, and the deployment is completed, as shown in Figures 1-2.

When the pushcart of the utility model is folded, the upper push rod 51 can be slid downward along the lower push rod 52 first, and then the upper push rod 51 and the lower push rod 52 can be slid downward along the connecting sleeve 32 together; The rod 52 slides down along the connecting sleeve 32 , and then the upper push rod 51 slides down along the lower push rod 52 .

To sum up, the folding and unfolding operation of the children's stroller of the utility model is flexible, convenient and easy to use, and the folded baby stroller is small in size and convenient to carry.

The push cart of the utility model can be a common push cart, or a push cart that can be folded and opened automatically, or other kinds of push carts.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present utility model, and its purpose is to allow those familiar with this technology to understand the content of the present utility model and implement it accordingly, and cannot limit the protection scope of the present utility model. 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 child stroller comprising a stroller frame having folded and unfolded states, a front wheel assembly, a rear wheel assembly and a locking mechanism for locking said stroller frame in an unfolded state, said stroller frame comprising a lower end The front wheel bracket with the front wheel assembly on the top, the rear wheel bracket with the rear wheel assembly at the lower end and the push rod slidingly arranged on the front wheel bracket, the upper end of the front wheel bracket and the The upper part of the rear wheel bracket is rotatably connected, and it is characterized in that: the cart frame also includes a pull rod whose front end is rotatably connected to the lower end of the push rod, and the rear end of the pull rod is connected to the lower part of the rear wheel bracket When the cart frame is folded, the upper end of the front wheel bracket slides upward relative to the push rod along the push rod above the junction of the push rod and the pull rod. Driven by the pull rod, it moves closer to the push rod. 2. The children's stroller according to claim 1, characterized in that: the front wheel bracket includes a front wheel bracket body with the front wheel assembly at the lower end and a wheel fixed at the upper end of the front wheel bracket body. A connection sleeve, the rear wheel bracket is rotatably connected to the connection sleeve, and the push rod can slide through the connection sleeve. 3. The children's stroller according to claim 2, characterized in that: the push rod includes a lower push rod that can slide through the connecting sleeve and is arranged on the lower push rod along the length direction of the lower push rod to slide. The upper push rod on the lower push rod, the pull rod is rotatably connected with the lower end of the lower push rod. 4. The children's stroller according to claim 3, wherein when the stroller frame is folded, the lower push rod slides downward along the connecting sleeve, and the connecting sleeve is opposite to the push-down The rod slides from the lower part of the lower push rod to the upper part of the lower push rod, and the rear wheel bracket moves closer to the lower push rod. 5. The children's stroller according to claim 3 or 4, characterized in that: the upper end and the lower end of the lower push rod are respectively provided with first stoppers that prevent the connecting sleeve from detaching from the lower push rod and the second limiting part. 6. The children's stroller according to claim 1, characterized in that: the rotation axis of the rear wheel bracket and the front wheel bracket, the rotation axis of the pull rod and the push rod, and the The pull rod is parallel to the axis of rotation of the rear wheel support. 7. The stroller for children according to claim 1, wherein the rear wheel support is an arc-shaped curved rod. 8. The stroller according to claim 7, wherein the rear wheel bracket includes a first section extending obliquely from front to back and from top to bottom and bent from the rear end of the first section The second section extending downwards, the first section and the second section have an included angle greater than 90°, the front wheel bracket is rotatably connected to the front end of the first section, the tie rod is connected to the The second segment is connected by rotation. 9 . The stroller according to claim 8 , wherein the rear wheel bracket further comprises an extension section extending forward from the front end of the first section along the length direction of the first section. 10. The children's stroller according to claim 1, wherein when the stroller frame is in the unfolded state, the rotational connection between the rear wheel bracket and the front wheel bracket is located between the push rod and the pull rod above the rotational connection.