A baby stroller that can be converted between single and double use

Abstract

The present invention discloses a baby stroller that can be converted between single - person and double - person use, and can be quickly converted into a single - person use state or a double - person use state, with convenient conversion. A baby stroller that can be converted between single - person and double - person use includes a frame, a front - wheel assembly and a rear - wheel assembly provided at the bottom of the frame, and a first seat assembly provided on the frame; the baby stroller further includes a front bracket assembly and a second seat assembly provided on the front bracket assembly; the front - wheel assembly is detachably connected to the bottom of the frame; the rear part of the front bracket assembly is detachably connected to the bottom of the frame; the baby stroller has a single - person state and a double - person state. When the baby stroller is in the single - person state, the front bracket assembly is separated from the frame, and the front - wheel assembly is connected to the bottom of the frame; when the baby stroller is in the double - person state, the rear part of the front bracket assembly is connected to the frame, and the second seat assembly and the first seat assembly are arranged front - to - back.

Description

Technical Field

[0001] The present invention relates to the field of children's products, and particularly to a baby stroller that can be converted between single - person and double - person use. Background Art

[0002] With more and more families having two children, baby strollers that can be used either as single - person strollers or double - person strollers are becoming increasingly popular. In the prior art, most are single - person strollers for a single child, and there are also some double - person strollers for two children at the same time. However, there are relatively few baby strollers that can be converted between double - person and single - person strollers. Although there are already baby strollers on the market that can be converted between double - person and single - person strollers, due to the large number of connecting rod members and connecting parts required for conversion, the structure is relatively cumbersome and the operation is very inconvenient. Summary of the Invention

[0003] Based on the above problems, the purpose of the present invention is to provide a baby stroller that can be converted between single - person and double - person use, which can be quickly converted into a single - person use state or a double - person use state, and the conversion is convenient.

[0004] To achieve the above - mentioned purpose, the present invention adopts the following technical solutions:

[0005] A baby stroller that can be converted between single - person and double - person use, comprising a frame, a front - wheel assembly and a rear - wheel assembly provided at the bottom of the frame, and a first seat assembly provided on the frame;

[0006] The baby stroller further includes a front bracket assembly and a second seat assembly provided on the front bracket assembly;

[0007] The front - wheel assembly is detachably connected to the bottom of the frame;

[0008] The rear part of the front bracket assembly is detachably connected to the bottom of the frame;

[0009] The baby stroller has a single - person state and a double - person state. When the baby stroller is in the single - person state, the front bracket assembly is separated from the frame, and the front - wheel assembly is connected to the bottom of the frame; when the baby stroller is in the double - person state, the rear part of the front bracket assembly is connected to the frame, and the second seat assembly and the first seat assembly are arranged front - to - back.

[0010] In one embodiment, the bottom of the frame has a first connecting portion, the front - wheel assembly has a front - wheel connecting member that cooperates with the first connecting portion, and the front - wheel connecting member is detachably connected to the first connecting portion; the rear part of the front bracket assembly is provided with a bracket connecting member that cooperates with the first connecting portion, and the bracket connecting member is detachably connected to the first connecting portion.

[0011] In one embodiment, the front wheel assembly is detachably connected to the bottom of the frame or the front part of the front bracket assembly. When the stroller is in the double-person state, the front wheel assembly is connected to the front part of the front bracket assembly.

[0012] In one embodiment, the front part of the front bracket assembly has a second connecting portion that cooperates with the front wheel connecting member, and the front wheel connecting member is detachably connected to the second connecting portion.

[0013] In one embodiment, the front wheel connecting member and the bracket connecting member are respectively connecting pins extending upward, and the first connecting portion and the second connecting portion are respectively connecting grooves that cooperate with the connecting pins.

[0014] In one embodiment, a locking groove is provided on the connecting pin, and a locking tongue is movably arranged in the connecting groove. The locking tongue cooperates with the locking groove. When the locking tongue is inserted into the locking groove, the connecting pin is locked in the connecting groove.

[0015] In one embodiment, a button for disengaging the locking tongue from the locking groove is provided on the frame and / or the front bracket assembly.

[0016] In one embodiment, the front bracket assembly includes a fixed seat and a seat pocket interface rotatably connected to the fixed seat through a pivot. The second seat pocket assembly is detachably connected to the seat pocket interface. When the stroller is in the single-person state, the seat pocket interface and the fixed seat are close to each other; when the stroller is in the double-person state, the seat pocket interface expands relative to the fixed seat.

[0017] In one embodiment, the front bracket assembly further includes a damping block and a damping pin. One of the seat pocket interface and the fixed seat is fixedly provided with the damping block, and the other is movably provided with the damping pin. A damping groove is provided on the damping block. When the stroller is in the double-person state, the end of the damping pin is inserted into the damping groove.

[0018] In one embodiment, the damping groove is slidably arranged in an installation groove opened in the seat pocket interface or the fixed seat, and an elastic member for inserting the damping pin into the damping groove is provided in the installation groove.

[0019] Combined with the above, the present invention adopts the above technical solutions and has the following advantages compared with the prior art:

[0020] The baby stroller provided by the present invention can be converted between single - person and double - person modes. Since the front - wheel assembly can be detached from the frame, and the front - bracket assembly is connected to the frame to provide space for setting the second seat assembly, it can be quickly converted between the single - person state and the double - person state. Moreover, when in the single - person state, the front - bracket assembly is detached from the frame, making the stroller lighter in the single - person state. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following - described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 FIG. 9 is a three - dimensional schematic diagram of a baby stroller according to the present invention in the single - person state;

[0023] Figure 2 FIG. 13 is a three - dimensional schematic diagram of a baby stroller according to the present invention in the double - person state;

[0024] Figure 3 FIG. Figure 2 19 is a side view of the baby stroller shown;

[0025] Figure 4 FIG. 23 is a three - dimensional schematic diagram of the front - bracket assembly and the front - wheel assembly;

[0026] Figure 5 FIG. 27 is a schematic diagram of the connection process of the front - bracket assembly and the front - wheel assembly;

[0027] Figure 6 FIG. 31 is a schematic diagram of the front - bracket assembly after folding;

[0028] Figure 7 FIG. 35 is a cross - sectional view of the front - bracket assembly.

[0029] Among them, 1. Frame; 11. Button; 2. Front - wheel assembly; 21. Connecting pin; 210. Lock groove; 3. Rear - wheel assembly; 4. First seat assembly; 5. Front - bracket assembly; 50. Connecting groove; 51. Connecting pin; 510. Lock groove; 52. Fixed seat; 520. Installation groove; 53. Seat interface; 54. Pivot; 55. Damping block; 550. Damping groove; 56. Damping pin; 57. Elastic member; 58. Button; 6. Second seat assembly. Detailed Description of the Embodiments

[0030] The following will elaborate on the preferred embodiments of the present invention in conjunction with the drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

[0031] Figures 1-7Shown is a convertible single / double child stroller according to the present invention, which has a single-person state for single use and a double-person state for double use, and can be quickly converted between the two states. Refer to Figures 1-7 As shown, the convertible single / double child stroller includes a frame 1, a front wheel assembly 2 and a rear wheel assembly 3 provided at the bottom of the frame 1, and a first seat assembly 4 provided on the frame 1. The child stroller further includes a front bracket assembly 5 and a second seat assembly 6 provided on the front bracket assembly 5. Among them, the front wheel assembly 2 is detachably connected to the bottom of the frame 1 or the front part of the front bracket assembly 5; the rear part of the front bracket assembly 5 is detachably connected to the bottom of the frame 1. When the child stroller is in the single-person state, the front bracket assembly 5 is disengaged from the frame 1, the front wheel assembly 2 is connected to the bottom of the frame 1, and only the first seat assembly 4 can be used for a child to sit, and it is only for single use, as Figure 1 shown. When the child stroller is in the double-person state, the rear part of the front bracket assembly 5 is connected to the frame 1, the front wheel is connected to the front part of the front bracket assembly 5, the second seat assembly 6 is provided on the front bracket assembly 5 and the second seat assembly 6 and the first seat assembly 4 are arranged front and back for children to sit respectively, and it is for double use, as Figure 2 shown.

[0032] The front wheel assembly 2 has a front wheel connecting member, and a first connecting portion cooperating with the front wheel connecting member is provided at the bottom of the frame 1, and the front wheel connecting member is detachably connected to the first connecting portion of the frame 1. Combining Figure 5 As shown, specifically in this embodiment, the front wheel connecting member is a connecting pin 21 extending upward, and the first connecting portion is a connecting groove extending upward from the lower surface of the frame 1 and opened at the bottom of the frame 1. The connecting pin 21 cooperates with the connecting groove and is detachably inserted. In addition, after the front wheel assembly 2 is connected to the frame 1, the connecting pin 21 is locked in the connecting groove by a locking mechanism. A locking groove 210 is provided on the side surface of the connecting pin 21. The locking mechanism includes a locking tongue (not shown in the figure) that can be inserted into the locking groove 210. By inserting the locking tongue into the locking groove 210, the connecting pin 21 is prevented from disengaging from the connecting groove. The locking tongue is movably arranged in the connecting groove, and a button 11 for driving the locking tongue to disengage from the connecting groove is also movably provided on the frame 1. When the button 11 is pressed, the locking tongue is driven to disengage from the locking groove 210 of the connecting pin 21, and the connecting pin 21 is released and can be disengaged from the connecting groove, so that the front wheel assembly 2 can be quickly removed from the frame 1.

[0033] Combining Figures 4-7As shown, the front bracket assembly 5 includes a fixed seat 52 and a seat pocket interface 53. A second connecting portion adapted to the connecting pin 21 is provided at the front of the fixed seat 52 of the front bracket assembly 5, and the front wheel connecting member is detachably connected to the second connecting portion of the fixed seat 52. Specifically in this embodiment, the second connecting portion is a connecting groove 50 opened at the front of the fixed seat 52 and extending upward from the lower surface of the front bracket assembly 5, and the connecting pin 21 is adapted to and detachably inserted into the connecting groove 50, and the shape of the connecting groove 50 is the same as the shape of the connecting groove on the vehicle frame 1. In addition, after the front wheel assembly 2 is connected to the fixed seat 52 of the front bracket assembly 5, the connecting pin 21 is locked in the connecting groove 50 by another locking mechanism. The locking mechanism includes another locking tongue (not shown in the figure) that can be inserted into the locking groove 210, and the connecting pin 21 is prevented from disengaging from the connecting groove 50 by inserting the locking tongue into the connecting groove 50. The locking tongue is movably provided in the connecting groove 50, and a button 58 for driving the locking tongue to disengage from the connecting groove 50 is also movably provided on the fixed seat 52. When the button 58 is pressed, the locking tongue is driven to disengage from the locking groove 210 of the connecting pin 21, and the connecting pin 21 is released and can be disengaged from the connecting groove 50, so that the front wheel assembly 2 can be quickly removed from the fixed seat 52 of the front bracket assembly 5.

[0034] As shown in conjunction Figures 4-7 As shown, a front bracket connecting member is provided at the rear of the fixed seat 52 of the front bracket assembly 5, and the front bracket connecting member is detachably connected to the bottom of the vehicle frame 1, preferably connected to the connecting groove 50 on the vehicle frame 1. In this embodiment, the front bracket connecting member is a connecting pin 51 having the same shape as the connecting pin 21, and the connecting pin 51 is adapted to and detachably inserted into the connecting groove on the vehicle frame 1. A locking groove 510 is also provided on the side surface of the connecting pin 51, and the locking tongue in the connecting groove of the vehicle frame 1 can be inserted into the locking groove 510 of the connecting pin 51 to lock it, and the locking tongue can be disengaged from the locking groove 510 by pressing the button 11 on the vehicle frame 1.

[0035] The number of the seat pocket interfaces 53 is two and they are respectively located on the left and right sides of the fixed seat 52, and the second seat pocket assembly 6 is detachably connected to the two seat pocket interfaces 53. The seat pocket interface 53 is rotatably connected to the fixed seat 52 through a pivot 54, and the axis line of the pivot 54 extends horizontally along the front-rear direction of the stroller, so that the front bracket assembly 5 can be folded after being detached from the vehicle frame 1 to reduce the storage space. When the stroller is in the single-person state, the second seat pocket assembly 6 is detached from the seat pocket interface 53, the seat pocket interfaces 53 on both sides are close to the fixed seat 52, and the front bracket assembly 5 is folded flat and is convenient to carry, as Figure 4 and 5 shown; when the stroller is in the double-person state, the seat pocket interfaces 53 are respectively unfolded relative to the fixed seat 52 and generally extend in the up-down direction, and the second seat pocket assembly 6 is connected to the two seat pocket interfaces 53, as Figure 6 shown.

[0036] The front bracket assembly 5 further includes a damping block 55 and a damping pin 56. Among them, the damping block 55 is fixedly embedded in the seat pocket interface 53. An installation groove 520 is provided on the fixed seat 52, and the damping pin 56 is slidably disposed in the installation groove 520. A damping groove 550 is provided on the damping block 55. One end of the damping pin 56 can be inserted into the damping groove 550. The groove wall of the damping groove 550 is an inclined surface or a curved surface to allow the damping pin 56 to escape from the damping groove 550. An elastic member for inserting the damping block 55 into the damping groove 550 is provided in the installation groove 520. The elastic member is specifically a spring 57 with one end connected to the other end of the damping pin 56 and the other end connected to the groove wall of the installation groove 520. During the process of the seat pocket interface 53 approaching or unfolding, the damping pin 56 disengages from the damping groove 550, and the seat pocket interface 53 rotates relative to the fixed seat 52. During this process, the spring 57 is compressed. After the seat pocket interface 53 is unfolded, the damping groove 550 faces the damping pin 56, and the damping pin 56 is inserted into the damping groove 550 under the driving force of the restoring force of the spring 57, so that the seat pocket interface 53 is maintained in the current state, that is, maintained in the upright state without tilting. The damping block 55 is made of wear-resistant material.

[0037] The usage process of this convertible single / double child stroller is as follows:

[0038] Refer to Figure 1 As shown, in the single-person state, the connecting pin 21 of the front wheel assembly 2 is inserted into and locked in the connecting groove of the frame 1, so that the front wheel assembly 2 is connected to the frame 1, and only the first seat pocket assembly 4 on the frame 1 is available for use.

[0039] When it is necessary to convert to the double-person state, press the button 11 on the frame 1 to unlock the connecting pin 21 of the front wheel assembly 2 and pull it out from the connecting groove of the frame 1; insert the connecting pin 51 of the front bracket assembly 5 into the connecting groove of the frame 1 and lock it, insert the connecting pin 21 of the front wheel assembly 2 into the connecting groove 50 of the front bracket assembly 5 and lock it, connect the second seat pocket assembly 6 to the front bracket assembly 5, and both the second seat pocket assembly 6 and the first seat pocket assembly 4 arranged front and back are available for use, as Figure 2 shown.

[0040] When it is necessary to convert to the single-person state, press the button 58 on the front bracket assembly 5 to unlock the connecting pin 21 of the front wheel assembly 2 and pull it out from the connecting groove 50 of the front bracket assembly 5; press the button 11 on the frame 1 to unlock the connecting pin 21 of the front bracket assembly 5 and pull it out from the connecting groove 50 of the frame 1; insert the connecting pin 21 of the front wheel assembly 2 into the connecting groove of the frame 1 and lock it, and convert to the Figure 1 state shown.

[0041] The baby stroller provided by the present invention can be converted between single-person and double-person modes. Since the front wheel assembly 2 can be detached from the frame 1, and the front bracket assembly 5 is connected to the frame 1 to provide space for setting the second seat assembly 6, it can be quickly converted between the single-person mode and the double-person mode. Moreover, when in the single-person mode, the front bracket assembly 5 is detached from the frame 1, making the stroller lighter in the single-person mode.

[0042] The above embodiments are only for illustrating the technical concept and features of the present invention, and are preferred embodiments. The purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and it is not intended to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the present invention should be covered within the protection scope of the present invention.

Claims

1. A baby stroller that can be converted between single - person and double - person use, comprising a frame, a front - wheel assembly and a rear - wheel assembly provided at the bottom of the frame, and a first seat assembly provided on the frame; characterized in that: The baby stroller further comprises a front bracket assembly and a second seat assembly provided on the front bracket assembly; The front - wheel assembly is detachably connected to the bottom of the frame; The rear part of the front bracket assembly is detachably connected to the bottom of the frame; The front - wheel assembly has a connecting pin extending upward, the rear part of the front bracket assembly has a connecting pin extending upward, the bottom of the frame is provided with a connecting groove extending upward from the lower surface of the frame, and the front part of the front bracket assembly is provided with a connecting groove extending upward from the lower surface of the front bracket assembly; The front bracket assembly includes a fixed seat and a seat interface rotatably connected to the fixed seat through a pivot, and the second seat assembly is detachably connected to the seat interface; the front bracket assembly further includes a damping block and a damping pin, one of the seat interface and the fixed seat is fixedly provided with the damping block, the other component is movably provided with the damping pin, and the damping block is provided with a damping groove; The baby stroller has a single - person state and a double - person state. When the baby stroller is in the single - person state, the front bracket assembly is separated from the frame, and the seat interface and the fixed seat are close to each other so that the front bracket assembly is folded into a flat state. The front - wheel assembly is connected to the bottom of the frame, and the connecting pin of the front - wheel assembly is detachably inserted into the connecting groove at the bottom of the frame; When the baby stroller is in the double - person state, the rear part of the front bracket assembly is connected to the frame, the connecting pin of the front bracket assembly is detachably connected to the connecting groove at the bottom of the frame, the connecting pin of the front - wheel assembly is detachably inserted into the connecting groove of the front bracket assembly, the seat interface is unfolded relative to the fixed seat, the end of the damping pin is inserted into the damping groove so that the seat interface maintains an upright state, the second seat assembly and the first seat assembly are arranged front - to - back, and the second seat assembly is located at the front side of the frame.

2. The stroller according to claim 1, characterized in that: The connecting pin is provided with a locking groove, and a locking tongue is movably arranged in the connecting groove. The locking tongue cooperates with the locking groove. When the locking tongue is inserted into the locking groove, the connecting pin is locked in the connecting groove.

3. The stroller for children according to claim 2, wherein: A button for disengaging the locking tongue from the locking groove is provided on the frame and / or the front bracket assembly.

4. The stroller for children according to claim 1, characterized in that: The damping groove is slidably arranged in an installation groove provided in the seat interface or the fixed seat, and an elastic member for inserting the damping pin into the damping groove is provided in the installation groove.

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