CN104960560A - Folding umbrella stroller - Google Patents

Abstract

The invention relates to a foldable children's umbrella handle car. The front support bar of the umbrella handle vehicle includes a first bar and a second bar that are slidably connected to each other, and the mutual sliding between the first bar and the second bar can drive the front support bar to shrink and extend along the length direction, The rear support rod and the front support rod are connected by a slide, and the slide is slidably arranged on the second rod, the slide can be locked on the second rod, and the slide is connected to the rear support rod through a pivot . The two ends of the cushion rod are respectively pivotally connected with the second rod and the rear support rod through the pivot, and the two ends of the connecting rod are respectively connected with the first rod and the rear support rod through the pivot. When the frame is in a folded state, the front support rod is contracted, and when the vehicle frame is in an unfolded state, the front support rod is extended. The present invention further shrinks the front support rod after folding, so that the space occupied by the umbrella handle car after folding is small, and the function of being folded by carrying is realized through the connecting rod.

Description

Foldable children's umbrella handle car

technical field

The invention relates to a foldable children's cart, in particular to a foldable children's umbrella handle cart.

Background technique

There are two main types of baby/child strollers on the market at present, one is an ordinary stroller, and the other is a lightweight umbrella handle stroller. Compared with ordinary carts, the umbrella cart is very convenient, and it is very small after folding, which is suitable for going out, especially when taking other means of transportation, such as a bus, which is very convenient.

In the prior art, the vehicle frame of a foldable umbrella handle usually includes side brackets on both sides, a bottom bracket and a rear bracket arranged between the side brackets on both sides, and each side bracket includes a front bracket, a lower part and a front bracket. The upper end of the push rod, the rear bracket and the connecting rod are rotatably connected, the upper end of the rear bracket is also rotatably connected with the push rod, the connecting rod is arranged between the front bracket and the rear bracket, and its front end is rotatably connected with the front bracket. The rear end is rotatably connected with the rear bracket and extends substantially along the horizontal direction. When the existing umbrella cart is folded, the umbrella cart is first folded left and right, and then in order to further reduce the space occupied by the folded umbrella cart, the push rod is turned towards the front bracket, which requires multiple steps to fold the umbrella cart The operation can only be completed, and "one-handle and fold" cannot be realized, and the car collection operation is not convenient enough. Moreover, the front bracket and the push rod of the existing umbrella handle are often connected by plastic parts, and the characteristics of the umbrella handle itself are prone to adduction after the frame is loaded, which affects the safety and comfort of use.

Contents of the invention

The technical problem to be solved by the present invention is to provide a foldable children's umbrella handle car with simple structure, convenient folding operation and small occupied space after folding.

In order to solve the above-mentioned technical problems, a technical solution adopted by the present invention is: a foldable children's umbrella handle car, which includes a vehicle frame with an unfolded state and a folded state, a front wheel assembly and a rear wheel assembly. The side brackets on both sides, the support frame that is arranged between the side brackets on both sides and can be folded laterally, the side brackets include a front bracket bar whose bottom is connected to the front wheel assembly, a bottom connected to the rear wheel The rear frame rod to which the components are connected and the seat rod which extends in the fore-aft direction. The front support bar includes a first bar and a second bar that are slidably connected to each other, the mutual sliding between the first bar and the second bar can drive the front support bar to shrink and extend along the length direction, the The lower end of the first rod is connected to the front wheel assembly, the length directions of the first rod and the second rod coincide with each other, the rear support rod and the front support rod are connected by a sliding part, and the sliding part slides It is arranged on the second rod, the sliding part can be locked on the second rod, the sliding part is connected with the rear support rod through the pivot, and the two ends of the cushion rod are connected with the second rod through the pivot respectively. 1. The rear support rod is rotationally connected, and a connecting rod is also arranged between the front support rod and the rear support rod. The two rods, the seat rod and the rear bracket rod form a triangular crank slider mechanism. When the frame is in the folded state, the crank slider mechanism folds to drive the connecting rod to move so that the first rod is relatively to the second rod. Sliding realizes the contraction of the front support rod; when the vehicle frame is in the unfolded state, the slider crank mechanism expands to drive the connecting rod to move so that the first rod slides in a direction away from the second rod to realize the Extension of the front support rod.

Specifically, the upper end of the rear support rod is connected to the front support rod, and when the vehicle frame is in the unfolded state, the position of the slider on the second rod is higher than that of the seat rod and the second rod. , The joint between the seat cushion rod and the rear support rod.

Preferably, one of the two rods of the first rod and the second rod is provided with a chute along the length direction of the rod, and the other rod is nested in the chute and can extend along the length of the chute. Direction slide.

Further preferably, a chute is provided on the second rod along the length direction, and the first rod is nested in the chute and can slide along the extending direction of the chute.

Specifically, when the vehicle frame is in the unfolded state, the connection between the connecting rod and the rear support rod is higher than the connection between the connecting rod and the first rod.

Specifically, when the vehicle frame is in the unfolded state, the upper end of the first rod is lower than the position of the slider on the second rod.

Specifically, the connection between the connecting rod and the rear support rod is located between the connection between the second rod and the rear support rod and the connection between the seat cushion rod and the rear support rod.

According to a specific aspect, the support frame includes a horizontally foldable bottom bracket arranged between the front bracket rod and the rear bracket rod, and the bottom bracket includes a first bottom bracket that intersects and is rotatably connected at the intersection For the rod and the second bottom brace, the front ends of the first bottom brace and the second bottom brace are respectively rotatably connected to the second rods on both sides, and the rear ends are respectively rotatably connected to the rear bracket rods on both sides.

According to another specific aspect, the support frame includes a rear support frame that is arranged between the rear support rods on both sides and can be folded laterally. Seat, upper cross brace, lower cross brace located below the upper cross brace, first diagonal brace, second diagonal brace, the upper cross brace includes outer ends that are respectively connected to the rear support rods on both sides in rotation The first strut and the second strut, the inner ends of the first strut and the second strut are rotatably connected with the upper end of the longitudinal link, and the lower cross strut includes the outer ends respectively connected with the rear support rods on both sides. The third support rod and the fourth support rod connected by rotation, the inner ends of the third support rod and the fourth support rod are rotatably connected with the lower end of the longitudinal connecting rod, and the upper ends of the first diagonal support rod and the second diagonal support rod The upper and lower ends are respectively rotatably connected to the opposite two sides of the connecting seat, and the lower ends are respectively rotatably connected to the outer ends of the third and fourth rods. Foot pedals are arranged at the joints of the longitudinal connecting rod, the third support rod and the fourth support rod.

Specifically, when the vehicle frame is in the folded state, the second rod and the front wheel assembly support the ground so that the umbrella handle vehicle can stand upright on the ground.

The orientation words such as front, rear, up, and down mentioned above are defined in the orientation of the foldable children's umbrella handle car in normal use.

The scope of the present invention 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, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Due to the application of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art: the present invention sets the front support rod into a multi-stage telescopic structure, so that the umbrella handle can further shrink the front support rod after folding, and the umbrella handle After the car is folded, it takes up little space and has a simple structure; by setting the connecting rod, the movement of the rear support rod drives the multiple rods of the front support rod to slide with each other, so that the front support rod can be stretched, so that the present invention can realize the folding functions, easy to operate.

Description of drawings

Fig. 1 is the three-dimensional schematic view of the foldable children's umbrella handle car of the present invention in an unfolded state;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is a three-dimensional schematic diagram of the foldable children's umbrella handle car in the folding process of the present invention;

Fig. 4 is a three-dimensional schematic diagram of the foldable children's umbrella handle car of the present invention in a folded state;

Fig. 5 is a disassembled view of the foldable children's umbrella handle car of the present invention.

Among them: 1. Front wheel assembly; 2. Rear wheel assembly; 3. Side support; 4. Front support rod; 5. Rear support rod; 6. Cushion rod; 7. Connecting rod; 8. Slider; 9. Bottom support frame; 10, rear support frame; 11, longitudinal connecting rod; 12, connecting seat; 13, first diagonal strut; 14, second diagonal strut; 15, first strut; 16, second strut; 17 18, the fourth pole; 19, pedals; 41, the first bar; 42, the second bar; 91, the first bottom support bar; 92, the second bottom support bar.

Detailed ways

As shown in FIG. 1 to FIG. 5 , a foldable children's umbrella handle vehicle according to the present invention includes a vehicle frame in an unfolded state and a folded state, a front wheel assembly 1 and a rear wheel assembly 2 . The vehicle frame includes side brackets 3 on both sides, and a support frame that is arranged between the side brackets 3 on both sides and can be folded laterally. The side support 3 includes a front support bar 4 whose bottom is connected to the front wheel assembly 1 , a rear support bar 5 whose bottom is connected to the rear wheel assembly 2 , and a cushion bar 6 extending along the front-rear direction. The front bracket rod 4 is a two-stage structure formed by two rods slidingly connected to each other. The front bracket rod 4 includes a first rod 41 and a second rod 42 that are slidably connected to each other. The first rod The lower end of 41 is connected with the front wheel assembly 1, the length directions of the first rod 41 and the second rod 42 coincide with each other, and the second rod 42 is provided with a chute (not shown) along the length direction, The first rod 41 is nested in the sliding groove and can slide along the extending direction of the sliding groove.

The second rod 42 , the cushion rod 6 and the rear support rod 5 form a triangular crank slider mechanism. Specifically, the second rod member 42 of the front support rod 4 is connected with the rear support rod 5 through a sliding member 8, and the sliding member 8 is slidably arranged on the second rod member 42, and the sliding member 8 can be locked at the second rod member 42. on the second rod 42 . The upper end of the rear support rod 5 is pivotally connected to the slider 8 . The two ends of the cushion bar 6 are pivotally connected with the bottom of the second bar 42 and the middle and lower part of the rear support bar 5 respectively, and the connection between the seat bar 6 and the front support bar 4 is located on the second bar 42 . When the vehicle frame is in the folded state, the slider crank mechanism folds and drives the connecting rod 7 to move so that the first rod 41 slides relative to the second rod 42 to realize the contraction of the front bracket rod 4; when the vehicle When the rack is in the unfolded state, the crank-slider mechanism unfolds to drive the connecting rod 7 to move so that the first rod 41 slides in a direction away from the second rod 42 to realize the extension of the front bracket rod 4 .

When the vehicle frame is in the unfolded state, the connection between the second rod 42 and the rear support rod 5 is higher than the connection between the cushion rod 6 and the second rod 42 , and the connection between the seat rod 6 and the rear support rod 5 . The upper end of the first rod 41 is lower than the position of the slider 8 on the second rod 42 .

The umbrella handle car also includes a connecting rod 7 whose two ends are respectively connected with the rear support rod 5 and the first rod member 41 . The connecting rod 7 is respectively rotatably connected to the rear support rod 5 and the first rod member 41 through a pivot. The connection between the connecting rod 7 and the rear support rod 5 is located between the connection between the second rod member 42 and the rear support rod 5 and the connection between the seat cushion rod 6 and the rear support rod 5 . When the vehicle frame is in the unfolded state, the connection between the connecting rod 7 and the rear support rod 5 is higher than the connection between the connecting rod 7 and the first rod 41 . When the umbrella handle car is folded, the sliding part 8 slides, the rotation of the rear support rod 5 drives the movement of the connecting rod 7, the connecting rod 7 drives the first rod 41 to slide towards the second rod 42, and the front support rod 4 shrinks, reducing the folding The operation steps are simple, easy to carry and fold.

The support frame includes a horizontally foldable bottom support frame 9 arranged between the front support rod 4 and the rear support rod 5 and a laterally foldable rear support frame 10 arranged between the rear support rods 5 on both sides. The bottom support frame 9 includes a first bottom support bar 91 and a second bottom support bar 92 that intersect and are rotatably connected at the intersection, and the front ends of the first bottom support bar 91 and the second bottom support bar 92 are respectively connected to The second rod member 42 of the front support rod 4 is rotatably connected, and the rear end is respectively rotatably connected with the rear support rods 5 on both sides. The rear support frame 10 includes a longitudinal link 11, a connecting seat 12 that can be slidably arranged on the longitudinal link 11, an upper cross brace, a lower cross brace positioned below the upper cross brace, a first diagonal brace 13, a second cross brace. Two oblique struts 14, the upper cross strut comprises the first strut 15 and the second strut 16 that the outer end is connected with the rear support rod 5 of both sides respectively, the first strut 15, the second strut 16 The inner end is rotatably connected to the upper end of the longitudinal link 11. The lower cross brace includes a third strut 17 and a fourth strut 18 whose outer ends are respectively rotatably connected to the rear support rods 5 on both sides. The inner ends of the rod 17 and the fourth strut 18 are rotatably connected to the lower end of the longitudinal connecting rod 11, and the upper ends of the first slanting strut 13 and the second slanting strut 14 are respectively rotated with the opposite sides of the connecting seat 12. The connection and the lower end are rotationally connected with the outer ends of the third pole 17 and the fourth pole 18 respectively. A pedal 19 is provided at the joint of the longitudinal link 11 , the third strut 17 and the fourth strut 18 .

In the present invention, the seat of the children's umbrella handle car is formed by setting a cloth cover on the cushion rod 6 .

Unless otherwise specified, the rotational connections between the above two components are all rotational connections through pivots.

The folding process of the present invention is as follows: Referring to Fig. 1, the rear bracket 10 is first unlocked in the upward direction through the pedal 19, that is, the D direction, and then the slider 8 is unlocked, and then the slider 8 is unlocked along the B direction (along the front) The support rod 4 slides in the upward direction), and drives the rear support rod 5 and the cushion rod 6 to rotate in the direction of C (relative to the direction of the front support rod 4) and gradually move closer to the front support rod 4, and the rear support 10 gradually draws in along the A direction, Drive the bottom bracket 9 to draw in the left and right directions, and the rear bracket rod 5 rotates toward the C direction and drives the first rod 41 to slide toward the second rod 42 along the chute on the second rod 42 through the connecting rod 7, and the front bracket rod 4 Shrink, as shown in Figure 3. Finally, the folded state is formed as shown in FIG. 4 , and the umbrella handle vehicle can stand upright on the ground through the support of the front wheel assembly 1 and the second rod 42 .

To sum up, compared with the existing umbrella handle car, the folding operation of this umbrella handle car is very convenient, and it can be folded at the same time. At the same time, the structure is simpler, the setting is more convenient, the rigidity of the whole car is good, and the frame will not It is adducted and takes up very little volume after being folded.

As mentioned above, we have fully described according to the purpose of the present invention, but the present invention is not limited to the above-mentioned embodiments and implementation methods. Practitioners in the relevant technical fields may make various changes and implementations within the scope permitted by the technical ideas of the present invention.

Claims (10)

1. a folding children's umbrella handle vehicle, comprise the vehicle frame with deployed condition and folded state, front component (1) and wheel assembly (2), described vehicle frame comprises the side stand (3) being positioned at both sides, between the side stand (3) being located at described both sides and can the bracing frame of horizontal folding, described side stand (3) comprises the front frame bar (4) that bottom is connected with described front component (1), the rear rack pole (5) that bottom is connected with described wheel assembly (2) and the cushion rod (6) extended along the longitudinal direction, it is characterized in that: described front frame bar (4) comprises the first rod member (41) and second rod member (42) of mutual sliding block joint, mutually sliding between described first rod member (41) and the second rod member (42) to drive described front frame bar (4) shrink along its length and stretch, the lower end of described first rod member (41) is connected with front component (1), the length direction of described first rod member (41) and the second rod member (42) overlaps, described rear rack pole (5), connected by sliding part (8) between front frame bar (4), and sliding part (8) is slidably arranged on described second rod member (42), sliding part (8) can be locked on the second rod member (42), sliding part (8) and rear rack pole (5) are rotated by pivot and are connected, the two ends of described cushion rod (6) are respectively by pivot and the second rod member (42), rear rack pole (5) is rotationally connected, pipe link (7) is also provided with between described front frame bar (4) and rear rack pole (5), the two ends of described pipe link (7) are respectively by pivot and the first rod member (41), rear rack pole (5) is rotationally connected, described second rod member (42), cushion rod (6) and rear rack pole (5) form leg-of-mutton slider-crank mechanism, when described vehicle frame is in folded state, described slider-crank mechanism folding band is dynamically connected, and bar (7) is mobile makes the slip of described relative second rod member of first rod member (41) (42) realize the contraction of described front frame bar (4), when described vehicle frame is in deployed condition, described slider-crank mechanism unrolling tape is dynamically connected, and bar (7) is mobile makes described first rod member (41) realize the stretching, extension of described front frame bar (4) towards the direction slip away from the second rod member (42).

2. folding children's umbrella handle vehicle according to claim 1, it is characterized in that: the upper end of described rear rack pole (5) is connected with described front frame bar (4), when vehicle frame is in deployed condition, the position of described sliding part (8) on the second rod member (42) is higher than the junction of described cushion rod (6) with the second rod member (42), described cushion rod (6) and rear rack pole (5).

3. folding children's umbrella handle vehicle according to claim 2, it is characterized in that: one of them of described first rod member (41) and the second rod member (42) two rod members offers chute along rod member length direction, another rod member is nested in described chute and also can slides along the bearing of trend of chute.

4. folding children's umbrella handle vehicle according to claim 3, is characterized in that: described second rod member (42) offers chute along its length, and described first rod member (41) is nested in chute can be slided along the bearing of trend of chute.

5. the folding children's umbrella handle vehicle according to any one of Claims 1-4, it is characterized in that: when vehicle frame is in deployed condition, the junction of described pipe link (7) and rear rack pole (5) is higher than the junction of described pipe link (7) with the first rod member (41).

6. folding children's umbrella handle vehicle according to claim 5, is characterized in that: when vehicle frame is in deployed condition, and the upper end of the first rod member (41) is lower than the position of sliding part (8) on the second rod member (42).

7. folding children's umbrella handle vehicle according to claim 5, is characterized in that: the junction of described pipe link (7) and rear rack pole (5) is positioned between the junction of the second rod member (42) and rear rack pole (5) and the junction of cushion rod (6) and rear rack pole (5).

8. folding children's umbrella handle vehicle according to claim 1, it is characterized in that: support frame as described above comprises that be arranged between front frame bar (4) and rear rack pole (5) can the bottom bracing frame (9) of horizontal folding, described bottom bracing frame (9) comprise intersect and infall rotate connect the first bottom supporting rod (91) and the second bottom supporting rod (92), the leading section of the first bottom supporting rod (91) and the second bottom supporting rod (92) is rotationally connected with second rod member (42) of both sides respectively, rearward end is rotationally connected with the rear rack pole (5) of both sides respectively.

9. folding children's umbrella handle vehicle according to claim 1, it is characterized in that: support frame as described above comprise be arranged on both sides rear rack pole (5) between and can the back pole-bracket (10) of horizontal folding, back pole-bracket (10) comprises vertical connecting rod (11), the Connection Block (12) on vertical connecting rod (11) can be slidably arranged in, upper singletree, be positioned at the bottom rail strut below singletree, first hound (13), second hound (14), upper singletree comprises the first pole (15) and the second pole (16) that outer end is rotationally connected with the rear rack pole (5) of both sides respectively, first pole (15), the inner end of the second pole (16) rotates with the upper end of vertical connecting rod (11) and is connected, bottom rail strut comprises the 3rd pole (17) and the 4th pole (18) that outer end is rotationally connected with the rear rack pole (5) of both sides respectively, 3rd pole (17), the inner end of the 4th pole (18) rotates with the bottom of vertical connecting rod (11) and is connected, first hound (13) is rotationally connected with relative two sides of Connection Block (12) respectively with the upper end of the second hound (14), bottom is rotationally connected with the outer end of the 3rd pole (17) and the 4th pole (18) respectively, in vertical connecting rod (11), 3rd pole (17) and the 4th pole (18) junction are provided with foot-operated (19).

10. folding children's umbrella handle vehicle according to claim 1, is characterized in that: when described vehicle frame is in folded state, and the second rod member (42) and front component (1) support ground can by described umbrella handle vehicle uprightly on the ground.