CN110126903A - stroller - Google Patents

Abstract

The invention discloses a children's stroller. The stroller frame only includes a front wheel bracket, a rear wheel bracket, a push rod frame and a strut frame, wherein the push rod frame is relatively slidable along the length extending direction of the front wheel bracket The front wheel bracket is connected, the upper part of the rear wheel bracket is rotatably connected with the lower part of the push rod bracket, one end part of the support bracket is rotatably connected with the upper part of the front wheel bracket, and the other end part of the support bracket is rotatably connected to the on the rear wheel bracket. The cart frame also includes a seat panel rotatably connected to the front wheel bracket at the front, and a seat panel rear strut rotatably connected between the rear portion of the seat panel and the rear wheel bracket. By driving the push rod frame to slide downward relative to the front wheel bracket, the rods of the cart frame can be folded relative to each other. The number of rods is small, the structure is simple, and the folding operation is simple. At the same time, it presents a very flat and compact structure, which brings convenience to users' daily use and carrying.

Description

stroller

technical field

The present invention relates to a children's stroller.

Background technique

Strollers provide great convenience for users to travel with children, and have now become one of the necessary children's products in the process of children's growth. A stroller typically includes a stroller frame having an unfolded state and a folded state, a wheel assembly disposed on the bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the unfolded state. At present, there are many kinds of stroller frames, the number of rods of the stroller frame is different, the connection relationship and connection position between the rods are different, so the folding principle and folding method are also different. How to make the folded volume of the stroller frame as small as possible under the premise of ensuring the stable carrying of children is always the pursuit goal of those skilled in the art.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a children's stroller with a novel structure and folding method.

In order to achieve the above purpose, the technical solution adopted in the present invention is: a child stroller, comprising a stroller frame having an unfolded state and a folded state, a front wheel assembly arranged at the bottom front of the stroller frame, A rear wheel assembly at the bottom rear of the cart frame, and a locking mechanism for locking the cart frame in the deployed state, the cart frame comprising:

a front wheel bracket, which is gradually inclined upward from front to rear, and the front wheel assembly is arranged at the bottom of the front wheel bracket;

a rear wheel bracket, which is gradually inclined upward from the rear to the front, and the rear wheel assembly is arranged at the bottom of the rear wheel bracket;

a push rod frame, the push rod frame is relatively slidably connected to the front wheel support along the length extension direction of the front wheel support, and the upper part of the rear wheel support is rotatably connected to the lower part of the push rod frame;

a support frame, one end of the support frame is rotatably connected to the upper part of the front wheel bracket, and the other end of the support frame is rotatably connected to the rear wheel bracket,

The cart frame further comprises a seat plate rotatably connected to the front wheel bracket at the front, and a seat plate rear strut rotatably connected between the rear part of the seat plate and the rear wheel bracket, When the cart frame is in a folded state, the push rod frame slides down along the front wheel bracket so that the front wheel bracket, rear wheel bracket, push rod frame, support frame, seat plate and seat plate The rear braces are folded together, wherein the rear end of the seat plate is located in front of the front end of the seat plate.

Preferably, the seat plate has a sitting surface and a bottom surface located on the back side of the sitting surface. When the cart frame is in a folded state, the front wheel assembly and the rear wheel assembly are supported on the ground. , the bottom surface of the seat plate is disposed upward.

Preferably, the seat plate has a sitting surface, and the sitting surface is a curved surface with a low center and high left and right ends.

Preferably, the push rod frame includes a lower push rod frame and an upper push rod frame that can be folded relative to each other, and a push rod locking member for locking the lower push rod frame and the upper push rod frame relative to each other, the lower push rod frame The lower part of the push rod bracket is connected with the front wheel bracket and the rear wheel bracket, and the locking mechanism includes a frame locking piece arranged between the lower push rod bracket and the front wheel bracket, and the upper push rod bracket The frame locking member is arranged to be unlocked when it is folded relative to the lower push rod frame.

Further, the lower part of the upper push rod frame and the upper part of the lower push rod frame are rotatably connected, and when the upper push rod frame is turned over relative to the lower push rod frame, the vehicle frame lock is unlocked .

Further, the frame locking member includes a locking hole provided on the front wheel bracket, a locking tongue slidably arranged in the lower push rod in a radial direction, and a lock tongue for driving the locking tongue toward the The elastic piece for the movement of the lock hole is also provided with a traction cable between the lock tongue and the upper push rod frame or the push rod locking piece.

Preferably, a sliding guide member is fixedly provided on the upper part of the front wheel bracket, and the push rod frame and the sliding guide member are connected in a sliding fit relative to each other.

Further, the sliding guide member is a sliding sleeve, and the lower end of the push rod bracket penetrates below the sliding sleeve and is rotatably connected with the upper part of the rear wheel bracket.

Preferably, the push rod frame includes a lower push rod frame and an upper push rod frame that are rotatably connected to each other, and the lower push rod frame is connected to the front wheel bracket and the rear wheel bracket. In the folded state, when the cart frame is in the folded state, the lower push rod frame and the upper push rod frame are respectively folded on two sides of the front wheel bracket.

Further, between the upper push rod frame and the front wheel bracket, a hook assembly that cooperates with each other so that the two are relatively fixed.

Due to the application of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art: the stroller of the present invention only includes a front wheel bracket, a rear wheel bracket, a push rod frame, a strut frame, a seat The rear support rod of the board and the seat board drives the push rod frame to slide downward relative to the front wheel bracket, so that the rods of the cart frame can be folded relative to each other. The number of rods is small, the structure is simple, and the folding operation is simple. The rods can be tightly folded together to present a very flat and compact structure, which brings convenience to the user's daily use and carrying.

Description of drawings

Accompanying drawing 1 is the perspective view under the unfolded state of the stroller of the present invention;

Accompanying drawing 2 is the structural decomposition schematic diagram of the stroller of the present invention;

3 is a side view of the stroller of the present invention in an unfolded state;

Accompanying drawing 4 is the internal structure schematic diagram of A part in accompanying drawing 3;

Accompanying drawing 5 is the schematic diagram when the frame locking piece at B in accompanying drawing 4 is converted into the unlocking state;

6 is a schematic side view of the folding steps of the stroller of the present invention;

FIG. 7 is a schematic perspective view corresponding to FIG. 6 .

Among them: 1. Front wheel bracket; 11. Front strut; 12. Front cross bar; 13. Sliding guide (slip sleeve); 14. Front seat plate strut; 15. Hanging column; 16. Lock hole; 10. Front Wheel assembly; 2. Rear wheel bracket; 21. Rear strut; 22. Rear cross bar; 23. Basket support seat; 20. Rear wheel assembly; 3. Push rod frame; 31. Lower push rod frame; 32, Upper Push rod frame; 33, push rod locking piece; 34, hanging buckle; 35, push handle; 4, support frame; 5, seat plate; 6, seat plate rear strut; 7, frame locking piece; 71, lock tongue ; 72, spring; 8, traction cable; 9, basket rod.

Detailed ways

The technical solutions of the present invention will be further elaborated below with reference to the accompanying drawings and specific embodiments.

The above and the following definitions of directions such as up-down, left-right, etc. are all defined with reference to the directions observed by the seated person sitting on the stroller when the stroller frame is in the unfolded state.

Referring to Figures 1 to 7, a children's stroller includes a stroller frame with an unfolded state and a folded state, a front wheel assembly 10 provided on the bottom front of the stroller frame, and a stroller provided on the stroller. A rear wheel assembly 20 at the bottom rear of the frame, and a locking mechanism for locking the cart frame in the deployed state.

The cart frame includes a front wheel bracket 1 , a rear wheel bracket 2 , a push rod bracket 3 and a support bracket 4 , wherein the front wheel bracket 1 extends from front to rear gradually and inclined upward, and the front wheel assembly 10 is arranged on the front wheel bracket 1 the bottom of the rear wheel bracket 2; the rear wheel bracket 2 gradually extends upward and inclined upward from the rear to the front, and the rear wheel assembly 20 is arranged at the bottom of the rear wheel bracket 2; The bracket 1 is connected, the upper part of the rear wheel bracket 2 is rotatably connected with the lower part of the push rod bracket 3; superior. When the cart frame is folded, the push rod frame 3 slides down along the front wheel support 1 to drive the front wheel support 1 , the rear wheel support 2 , the push rod frame 3 and the strut frame 4 to be folded together, the front wheel assembly 10 and the rear The wheel assemblies 20 are collectively supported on the ground.

The cart frame also includes a seat plate 5 rotatably connected to the front wheel bracket 1 , and a seat plate rear strut 6 rotatably connected between the seat plate 5 and the rear wheel bracket 2 , specifically, the seat plate 5 The front part is rotatably connected to the upper part of the front wheel bracket 1 , and the rear strut 6 of the seat plate is rotatably arranged between the rear part of the seat plate 5 and the rear wheel bracket 2 . The seat plate 5 has a sitting surface and a bottom surface located on the back side of the sitting surface. Here, the sitting surface is a curved surface with a low middle and high left and right ends, which is beautiful in shape and comfortable to sit and stand.

During the folding process of the cart frame, the push rod bracket 3 slides downward relative to the front wheel bracket 1 and drives the upper part of the rear wheel bracket 2 to move toward the lower part of the front wheel bracket 1, so that the seat plate 5 is turned over relative to the front wheel bracket 1 and Make the rear part of the seat plate 5 move downward and forward and gradually close with the rear wheel bracket 2; in the folded state of the cart frame, the front wheel assembly 10 and the rear wheel assembly 20 are supported on the ground, and the seat plate 5 and the rear wheel assembly 20 are supported on the ground. The strut 6 is folded relative to the front wheel bracket 1, the rear wheel bracket 2, the push rod frame 3 and the strut frame 4, the rear end of the seat plate 5 is located in front of the front end of the seat plate 5, and the bottom surface of the seat plate 5 is upwardly arranged. .

In this embodiment, the push rod frame 3 includes a lower push rod frame 31 and an upper push rod frame 32 that can be folded relative to each other, and a push rod lock for locking the lower push rod frame 31 and the upper push rod frame 32 relative to each other. 33. The lower part of the lower push rod frame 31 is relatively slidably connected to the front wheel bracket 1, and the upper part of the rear wheel bracket 2 is rotatably connected to the lower part of the lower push rod frame 31. The locking mechanism includes a frame locking member 7 arranged between the lower push rod frame 31 and the front wheel bracket 1 for locking the two. When the frame locking member 7 is locked, the cart frame is locked in the unfolded state, When the upper push rod frame 31 is folded relative to the lower push rod frame 32, the frame locking member 7 is driven to be unlocked. Here, the lower portion of the upper push rod frame 32 and the upper portion of the lower push rod frame 31 are rotatably connected, and when the upper push rod frame 32 is turned over relative to the lower push rod frame 31 , the frame locking member 7 is unlocked.

Referring to the drawings, in this embodiment, the front wheel bracket 1 includes two front support rods 11 which are respectively arranged on the left and right sides and both extend obliquely upward from front to rear, and are fixed between the lower parts of the front support rods 11 on both sides. The front cross bar 12, the lower part of each front strut 11 is provided with a front wheel assembly 10; The rear cross bar 22 is arranged between the lower parts of the rear struts 21 on both sides, and the lower part of each rear strut 21 is provided with a rear wheel assembly 20; the lower push rod frame 31 includes two lower push rods arranged on the left and right sides The upper push rod frame 32 includes two upper push rods on the left and right sides, and the upper parts of the two upper push rods are fixedly connected by a push handle 35; the support frame 4 has two groups on the left and right sides.

On the left and right sides of the cart frame, the front support rod 11 and the lower push rod are connected in a sliding fit. Specifically, the upper part of the front support rod 11 is fixedly provided with a sliding guide 13 for providing sliding guidance for the lower push rod. Here, the sliding guide 13 adopts a sliding sleeve, and the lower push rod is slidably inserted into the sliding sleeve 13 along the extending direction of its own length; The upper part of 21 is rotationally connected. The support frame 4 is arranged between the rear support rod 21 and the sliding sleeve 13 on the same side.

A seat plate front strut 14 is also arranged between the sliding sleeves 13 on both sides. The front part of the seat plate 5 is supported and connected to the seat plate front strut 14 and is rotatably connected to the front wheel bracket 1 through the seat plate front strut 14 The rear support rod 6 of the seat plate is a U-shaped rod with an opening facing downward, and the lower part of its two sides is rotatably connected to the rear support rod 21 on the corresponding side. The rod is pivotally connected.

Referring to Figures 2 and 3, the cart frame also includes a basket rod 9, the basket rod 9 is a U-shaped rod with an opening facing forward, and two sides of its front part are rotatably connected to the rear supports on both sides respectively. On the rods 21 and the rear support rods 21 on both sides are provided with basket support seats 23 to provide the basket rods 9 for support.

Referring to FIG. 4 and FIG. 5 , the frame locking member 7 is arranged between the lower push rod and the sliding sleeve 13 . Specifically, the frame locking member 7 includes a locking hole 16 arranged on the sliding sleeve 13 and slides along the radial direction. The lock tongue 71 is arranged in the lower push rod, and the elastic member 72 is used to drive the lock tongue 71 to move toward the lock hole 16. A traction cable 8 is also provided between the lock tongue 72 and the upper push rod or the push rod locking member 33, Wherein, the elastic member 72 used here is a spring. When the frame is in the unfolded state, under the action of the spring 72, the locking tongue 71 is correspondingly inserted in the lock hole 16, and the frame locking member 7 is locked so that the frame is locked in the unfolded state; When the frame is folded, when the upper push rod frame 32 is turned over and folded relative to the lower push rod frame 31, the traction cable 8 is tensioned and the lock tongue 71 is pulled away from the lock hole 16 until it is disengaged from the lock hole 16, so that the frame The locking member 7 is linked and unlocked, and at this time, the lower push rod frame 31 can slide downward relative to the front wheel bracket 1 so that the cart frame can be folded.

Referring to FIG. 1 and FIG. 2 , when the cart frame of this embodiment is in the unfolded state, the upper push rod frame 32 and the lower push rod frame 31 of the push rod frame 3 are relatively unfolded and locked by the push rod locking member 33 , the front wheel bracket 1 and the push rod frame 3 are relatively unfolded, the seat plate 5 is supported by the seat plate front strut 14 and the seat plate rear strut 6 to provide stable support, and the seat plate 5 is located on the upper part of the front wheel bracket 1 and is in the at relatively high support heights.

Referring to Figures 6 to 7, when the cart frame needs to be folded, referring to Figures 6-1 and 7-1, after unlocking the push rod locking member 33, flip the upper push rod frame 32 forward. , so that it rotates and folds relative to the lower push rod frame 32, which makes the push rod locking members 7 on both sides also unlocked by linkage; The wheel bracket 1 slides down, which makes the rear wheel bracket 2 rotate relative to the push rod bracket 3, and the upper part of the rear wheel bracket 2 moves forward and downward, so that the front wheel bracket 1, the rear wheel bracket 2, the push rod bracket 3 and the support The frame 4 is gradually folded; during this process, the seat plate 5 is driven to turn over, and the rear part of the seat plate 5 faces downward and moves forward, so that the seat plate 5 is gradually turned over until the bottom surface is upward; finally, see Figure 6-3 , Figure 7-3, the folding of the cart frame is completed, the upper push rod frame 32 is folded on the front side of the front wheel bracket 1, the lower push rod frame 31 is folded on the rear side of the front wheel bracket 1, the support frame 4 is connected to the rear wheel The brackets 2 are all folded under the lower push rod frame 31 , and the front wheel assembly 10 and the rear wheel assembly 20 are supported on the ground. The upper part of the rear wheel bracket 2 is retracted with the lower part of the front wheel bracket 1 with the movement of the lower push rod bracket 31 , and the distance between the front wheel assembly 10 and the rear wheel assembly 20 in the front-rear direction is also reduced. The frame of the cart has a flat structure, and is compact in structure, small in overall size and small in volume.

Between the upper push rod frame 32 and the front wheel bracket 1 is also provided a hook assembly which cooperates with each other so that the two are relatively fixed. Here, the hook assembly includes a hook 34 provided on the upper push rod and a In the folded state shown in Fig. 6-3 and Fig. 7-3, the hanging post 15 on the outer side of the support rod 11 can hook the hanging buckle 34 on the hanging post 15 correspondingly, so that the upper push rod frame 31 can be connected to the front The wheel bracket 1 is relatively fixed, so that the rods on the folded cart frame are relatively fixed, so as to facilitate storage and carrying after the fold.

To sum up, the stroller of the present invention has a small number of rods, a simple structure, and a simple folding operation. After folding, the rods can be tightly folded together, showing a very flat and compact structure, which is suitable for the daily use and carrying of the user. brought convenience.

The above-mentioned embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the art to understand the content of the present invention and implement them accordingly, and cannot limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A children's stroller, comprising a stroller frame having an unfolded state and a folded state, a front wheel assembly arranged at the bottom front of the stroller frame, and a rear wheel set at the bottom rear of the stroller frame. A wheel assembly, and a locking mechanism for locking the cart frame in a deployed state, wherein the cart frame includes: a front wheel bracket, which is gradually inclined upward from front to rear, and the front wheel assembly is arranged at the bottom of the front wheel bracket; a rear wheel bracket, which is gradually inclined upward from the rear to the front, and the rear wheel assembly is arranged at the bottom of the rear wheel bracket; a push rod frame, the push rod frame is relatively slidably connected to the front wheel support along the length extension direction of the front wheel support, and the upper part of the rear wheel support is rotatably connected to the lower part of the push rod frame; a support frame, one end of the support frame is rotatably connected to the upper part of the front wheel bracket, and the other end of the support frame is rotatably connected to the rear wheel bracket, The cart frame further comprises a seat plate rotatably connected to the front wheel bracket at the front, and a seat plate rear strut rotatably connected between the rear part of the seat plate and the rear wheel bracket, When the cart frame is in a folded state, the push rod frame slides down along the front wheel bracket so that the front wheel bracket, rear wheel bracket, push rod frame, support frame, seat plate and seat plate The rear braces are folded together, wherein the rear end of the seat plate is located in front of the front end of the seat plate. 2 . The stroller according to claim 1 , wherein the seat plate has a sitting surface, and a bottom surface located on the back side of the sitting surface, when the stroller frame is in a folded state, 2 . When the front wheel assembly and the rear wheel assembly are supported on the ground, the bottom surface of the seat plate is disposed upward. 3 . The stroller according to claim 1 , wherein the seat plate has a sitting surface, and the sitting surface is a curved surface with a low center and high left and right ends. 4 . 4 . The stroller according to claim 1 , wherein the push rod frame includes a lower push rod frame and an upper push rod frame that can be folded relative to each other, and is used for connecting the lower push rod frame to the upper push rod frame. 5 . A push rod locking piece for relatively locking the push rod frame, the lower part of the lower push rod frame is connected with the front wheel bracket and the rear wheel bracket, and the locking mechanism includes a set on the lower push rod frame and the front wheel bracket A frame locking piece between the upper push rod frame and the lower push rod frame is folded to drive the frame locking piece to be unlocked. 5 . The stroller according to claim 4 , wherein the lower part of the upper push rod frame and the upper part of the lower push rod frame are rotatably connected, and the upper push rod frame is opposite to the The frame lock is actuated to unlock when the push rod frame is turned over. 6 . The stroller according to claim 5 , wherein the frame locking member comprises a locking hole provided on the front wheel bracket, and a locking hole provided in the lower push rod slidably in the radial direction. 7 . A lock tongue, and an elastic piece for driving the lock tongue to move toward the lock hole, a traction cable is further provided between the lock tongue and the upper push rod frame or the push rod locking piece. 7 . The stroller according to claim 1 , wherein the upper part of the front wheel bracket is fixedly provided with a sliding guide member, and the push rod frame and the sliding guide member are connected in a sliding fit relative to each other. 8 . . 8 . The stroller according to claim 7 , wherein the sliding guide is a sliding sleeve, and the lower end of the push rod bracket penetrates below the sliding sleeve and is connected to the rear wheel bracket. 9 . The upper part is pivotally connected. 9 . The stroller according to claim 1 , wherein the push rod frame comprises a lower push rod frame and an upper push rod frame that are rotatably connected to each other, the lower push rod frame and the front wheel bracket and the The rear wheel brackets are connected, and when the cart frame is in a folded state, the lower push rod bracket and the upper push rod bracket are respectively folded on two sides of the front wheel bracket. 10 . The stroller according to claim 9 , wherein the upper push rod bracket and the front wheel bracket are further provided with a hook component that cooperates with each other to make the two relatively fixed. 11 .