A baby stroller

Abstract

The present invention belongs to the technical field of children's products, and discloses an infant stroller, including a front wheel support assembly, a rear wheel support assembly and a push rod that are pinned eccentrically with the front wheel support assembly, a front wheel support connecting rod and a seat rod connecting rod that are pinned coaxially with the middle part of the front wheel support assembly, a rear wheel support connecting rod and a push rod connecting rod that are pinned coaxially with the front wheel support connecting rod, a seat rod rotatably connected to the seat rod connecting rod, a seat rod front connecting rod and a back rod that are rotatably connected to both ends of the seat rod, and a handrail rod that rotatably connects the seat rod front connecting rod and the back rod at both ends, the back rod is rotatably connected to the front wheel support assembly, and the push rod connecting rod is rotatably connected to the push rod. The present invention has low difficulty in folding operation through the rotatable connection of the above-mentioned components, and the structure of the whole vehicle is simple and uncomplicated. After folding, the whole vehicle has a small volume and is suitable for various narrow storage spaces.

Description

Technical Field

[0001] The present invention relates to the technical field of children's products, in particular to a baby stroller. Background Art

[0002] A foldable baby stroller can usually be folded into a small, easily foldable stroller in a few steps. In the prior art, the structure of a foldable baby stroller is varied, and it usually includes a foldable stroller frame, a wheel assembly disposed at the bottom of the stroller frame, and a locking mechanism for locking the stroller frame in an unfolded state. At present, there are many types of stroller frames, and the number of rods thereof is different. The connection relationship and connection position between the rods are different, so that the folding principle and folding method of the stroller frame are also different. How to simplify the structure of the stroller frame and the difficulty of the folding operation, and to reduce the volume of the frame after folding as much as possible, has always been a design goal of those skilled in the art. Summary of the invention

[0003] The object of the present invention is to provide a baby stroller which has a simple structure and is convenient and quick to fold and has a small volume after being folded.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A baby stroller comprises a front wheel support assembly, a rear wheel support assembly and a push rod which are eccentrically pin-connected to the front wheel support assembly, a front wheel support connecting rod and a seat rod connecting rod which are coaxially pin-connected to the middle part of the front wheel support assembly, a rear wheel support connecting rod and a push rod connecting rod which are coaxially pin-connected to the front wheel support connecting rod, a seat rod rotatably connected to the seat rod connecting rod, a seat rod front connecting rod and a back rod rotatably connected to both ends of the seat rod, and a handrail rod whose two ends are respectively rotatably connected to the seat rod front connecting rod and the back rod, the back rod is rotatably connected to the front wheel support assembly, and the push rod connecting rod is rotatably connected to the push rod.

[0006] Preferably, a push handle is further included, and the push handle can be telescopically placed in the push rod.

[0007] Preferably, a push handle clamping member and a push handle unlocking member are provided between the push handle and the push rod, the push handle clamping member is used to lock the push handle and the push rod, and the push handle unlocking member is used to release the lock between the push handle and the push rod.

[0008] Preferably, the whole vehicle locking mechanism is further included, which includes a first locking pin slidably arranged at one end of the push rod, the push rod connecting rod is provided with a sliding groove, and the first locking pin can be engaged in the sliding groove to lock the infant stroller.

[0009] Preferably, it also includes a backrest locking mechanism, which includes a button slidably arranged at the end of the push rod, and a second locking pin moved by the button, and a pin hole is provided at one end of the backrest rod, and the second locking pin can be inserted into the pin hole to lock the backrest rod and the push rod.

[0010] Preferably, a shower head assembly is further included, wherein the shower head assembly includes a shower seat fixedly mounted on the upper end of the backrest rod, and a front shower rod and a rear shower rod rotatably connected to the shower seat.

[0011] Preferably, the tent base, the front tent rod and the rear tent rod are coaxially pin-connected.

[0012] Preferably, the front wheel support assembly, the rear wheel support assembly and the backrest rod are pin-connected with each other.

[0013] Preferably, the seat post link is rotatably connected to a middle position of the seat post.

[0014] Preferably, the armrest rod is rotatably connected to the middle position of the backrest rod.

[0015] The beneficial effects of the present invention are as follows: through the rotational connection of the above-mentioned components, the folding operation is easy, and the structure of the whole vehicle is simple and uncomplicated. After folding, the volume of the whole vehicle is small, and it is suitable for various narrow storage spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the infant stroller provided by the present invention;

[0017] Figure 2 is a side view of the infant stroller provided by the present invention;

[0018] Figure 3 is a schematic diagram of the shower head assembly of the infant stroller provided by the present invention in a folded state;

[0019] Figure 4 A schematic diagram of the seat post of the infant stroller provided by the present invention in a semi-folded state;

[0020] Figure 5 A schematic diagram of the seat post of the infant stroller provided by the present invention in a fully folded state;

[0021] Figure 6 A schematic diagram of the handle of the infant stroller provided by the present invention in a folded state;

[0022] Figure 7 A schematic diagram of the infant stroller provided by the present invention showing the entire stroller frame in a semi-folded state;

[0023] Figure 8 The present invention Figure 7 A magnified schematic diagram of point A;

[0024] Fig. 9 A schematic diagram of the infant stroller provided by the present invention showing the entire vehicle frame in a completely folded state.

[0025] In the figure:

[0026] 1. Front wheel bracket assembly; 2. Rear wheel bracket assembly; 3. Push rod; 4. Front wheel bracket connecting rod; 5. Seat rod connecting rod; 6. Rear wheel bracket connecting rod; 7. Push rod connecting rod; 71. Slide groove; 8. Seat rod; 9. Seat rod front connecting rod; 10. Backrest rod; 101. Pin hole; 11. Handrail rod; 12. Push handle; 13. Push handle clamping piece; 14. Push handle unlocking piece; 15. First locking pin; 16. Push button; 17. Second locking pin; 18. Canopy seat; 19. Front canopy rod; 20. Rear canopy rod; 21. Front wheel assembly; 22. Rear wheel assembly. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0031] The present invention provides a baby stroller, such as Figure 1 and Figure 2 As shown, the infant stroller includes a front wheel support assembly 1, a rear wheel support assembly 2, a push rod 3, a front wheel support connecting rod 4, a seat rod connecting rod 5, a rear wheel support connecting rod 6, a push rod connecting rod 7, a seat rod 8, a seat rod front connecting rod 9, a backrest rod 10, a handrail rod 11, a push handle 12, a shower head assembly, a front wheel assembly 21 and a rear wheel assembly 22, wherein:

[0032] The front wheel support assembly 1 is rotatably pin-connected with the rear wheel support assembly 2 and the push rod 3, and the pin-connected axis between the front wheel support assembly 1 and the rear wheel support assembly 2 is not coaxial with the pin-connected axis between the front wheel support assembly 1 and the push rod 3. The front wheel assembly 21 is rotatably mounted on the front wheel support assembly 1, and the rear wheel assembly 22 is rotatably mounted on the rear wheel support assembly 2.

[0033] The middle part of the front wheel support assembly 1 is rotatably connected to a front wheel support link 4, the other end of the front wheel support link 4 is rotatably connected to a rear wheel support link 6, and the rear wheel support link 6 is rotatably connected to the rear wheel support assembly 2. The connection between the front wheel support assembly 1 and the rear wheel support assembly 2 can be supported by the front wheel support link 4 and the rear wheel support link 6.

[0034] The front wheel support assembly 1 is also rotatably connected to a seat rod link 5, which is rotatably connected to the middle position of the seat rod 8. Preferably, the pin-connected axis between the front wheel support assembly 1 and the seat rod link 5 is coaxial with the pin-connected axis between the front wheel support assembly 1 and the front wheel support link 4. This enables the linkage between the seat rod 8 and the front wheel support assembly 1 to be smoother.

[0035] One end of the seat bar 8 is rotatably connected to the seat bar front link 9, and the other end is rotatably connected to the backrest bar 10, wherein the seat bar front link 9 and the backrest bar 10 are both arranged perpendicular to the seat bar 8, and the other end of the seat bar front link 9 is rotatably connected to the handrail bar 11, and the other end of the handrail bar 11 is rotatably connected to the middle position of the backrest bar 10. The arrangement of the seat bar 8, the seat bar front link 9, the backrest bar 10 and the handrail bar 11 can realize the folding of the seat. In this embodiment, the backrest bar 10 is rotatably connected to the front wheel bracket assembly 1, and the front wheel bracket assembly 1 is pin-connected with the rear wheel bracket assembly 2 and the backrest bar 10 by a non-axial pin.

[0036] The push rod 3 is rotatably connected to a push rod connecting rod 7, and the push rod connecting rod 7 is coaxially pin-connected with the front wheel support connecting rod 4 and the rear wheel support connecting rod 6, so as to realize the linkage of the push rod 3, the front wheel support assembly 1 and the rear wheel support assembly 2.

[0037] In this embodiment, the push handle 12 is retractably placed in the push rod 3, and a push handle pressing member 13 and a push handle unlocking member 14 are provided between the push handle 12 and the push rod 3. The push handle pressing member 13 is rotatably connected to the top end of the push rod 3, and the push handle pressing member 13 can lock the push handle 12 and the push rod 3 to prevent the push handle 12 from moving and retracting when the infant stroller is used. The push handle unlocking member 14 is rotatably connected to the top end of the push rod 3, and the push handle unlocking member 14 is used to release the lock between the push handle 12 and the push rod 3.

[0038] In this embodiment, Figure 4 As shown, the stroller also includes a backrest locking mechanism, which includes a button 16 slidably arranged at the bottom end of the push rod 3, and a second locking pin 17 driven by the button 16, wherein the button 16 is inserted into the end of the push rod 3, and the button 16 can be elastically reset by an elastic member such as a spring. A pin hole 101 is provided at one end of the backrest rod 10, and the second locking pin 17 can be inserted into the pin hole 101 to lock the backrest rod 10 with the push rod 3. Specifically, when the button 16 is pressed, the button 16 drives the second locking pin 17 to move toward the central axis of the push rod 3, at which time the second locking pin 17 is not inserted into the pin hole 101, and when the button 16 is no longer pressed, the button 16 elastically resets and drives the second locking pin 17 to be inserted into the pin hole 101, thereby locking the backrest rod 10 with the push rod 3.

[0039] In this embodiment, the shower head assembly includes a shower seat 18 fixedly mounted on the upper end of the backrest rod 10, a front shower rod 19 and a rear shower rod 20 rotatably connected to the shower seat 18, wherein the shower seat 18, the front shower rod 19 and the rear shower rod 20 are coaxially pin-connected.

[0040] like Figure 7 and Figure 8 As shown, the baby stroller of this embodiment also includes a whole vehicle locking mechanism, which includes a first locking pin 15 slidably arranged at one end of the push rod 3, and the first locking pin 15 can be elastically reset by an elastic member such as a spring. A slide groove 71 is provided on the push rod connecting rod 7, and the first locking pin 15 can be snapped into the slide groove 71 to lock the baby stroller, and the baby stroller can be used normally at this time. When it is necessary to fold, the push rod 3 can be pressed down, and the push rod 3 drives the push rod connecting rod 7 to rotate, and the slide groove 71 and the first locking pin 15 slide relative to each other, and the first locking pin 15 is separated from the slide groove 71, and the lock of the baby stroller is released.

[0041] When the above-mentioned infant stroller of the present invention is in use, the infant stroller is in a fully opened state ( Figure 1 As shown), at this time, the whole vehicle locking mechanism locks the entire infant stroller, the backrest locking mechanism locks the backrest rod 10 and the push rod 3, and the push handle pressing member 13 locks the push handle 12 and the push rod 3, and the user can use the infant stroller normally.

[0042] When the stroller is no longer in use and is folded, the shower head assembly is first folded, and the front shower rod 19 and the rear shower rod 20 are directly rotated to the position as shown in the figure. Figure 3 Status shown.

[0043] Then, the lock between the backrest rod 10 and the push rod 3 is released, that is, the button 16 is pressed, and the button 16 drives the second locking pin 17 to move toward the central axis of the push rod 3 and disengage from the pin hole 101, and then rotates forward to the backrest rod 10, and its state is as follows: Figure 4 Continue to rotate the backrest rod 10 until the seat rod 8 fits the front wheel support assembly 1. Figure 5 Status shown.

[0044] Then, the lock between the push handle 12 and the push rod 3 is released, that is, the push handle pressing member 13 is first rotated upward, and then the lower end of the push handle unlocking member 14 is pressed to release the locking relationship between the push handle 12 and the push rod 3, and then the push handle 12 is pressed downward to retract the push handle 12 into the push rod 3, that is, Figure 6 Shown in folded state.

[0045] Then, the push handle 12 is continuously pressed downward, so that the first locking pin 15 can slide out of the opening groove of the push rod connecting rod 7, thereby releasing the lock of the entire infant stroller, and the push handle 12 is pressed downward again to fold the entire stroller frame to the position as shown in FIG. Figure 7 As shown in the state, continue to fold the push handle 12 to Fig. 9 The folding of the whole vehicle is completed in the state shown.

[0046] The above-mentioned infant stroller of this embodiment is easily folded by the rotation connection of the above-mentioned components, and the structure of the whole stroller is simple and uncomplicated. After folding, the whole stroller has a small volume and is suitable for various narrow storage spaces.

[0047] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An infant stroller, characterized in that: The invention comprises a front wheel support assembly (1), a rear wheel support assembly (2) and a push rod (3) which are pin-connected to the front wheel support assembly (1) in an eccentric manner, a front wheel support connecting rod (4) and a seat rod connecting rod (5) which are pin-connected to the middle of the front wheel support assembly (1) in a coaxial manner, a rear wheel support connecting rod (6) and a push rod connecting rod (7) which are pin-connected to the front wheel support connecting rod (4) in a coaxial manner, a seat rod (8) which is rotatably connected to the seat rod connecting rod (5), a seat rod front connecting rod (9) and a backrest rod (10) which are rotatably connected to both ends of the seat rod (8), and a handrail rod (11) whose two ends are respectively rotatably connected to the seat rod front connecting rod (9) and the backrest rod (10), wherein the backrest rod (10) is rotatably connected to the front wheel support assembly (1), and the push rod connecting rod (7) is rotatably connected to the push rod (3); The stroller also includes a whole-vehicle locking mechanism, the whole-vehicle locking mechanism including a first locking pin (15) slidably arranged at one end of the push rod (3), the push rod connecting rod (7) is provided with a sliding groove (71), and the first locking pin (15) can be snapped into the sliding groove (71) to lock the infant stroller; It also includes a push handle (12), wherein the push handle (12) is telescopically disposed inside the push rod (3); A push handle clamping member (13) and a push handle unlocking member (14) are provided between the push handle (12) and the push rod (3), wherein the push handle clamping member (13) is used to lock the push handle (12) and the push rod (3), and the push handle unlocking member (14) is used to release the lock between the push handle (12) and the push rod (3); The backrest locking mechanism also includes a button (16) slidably arranged at the end of the push rod (3), and a second locking pin (17) driven to move by the button (16); a pin hole (101) is provided at one end of the backrest rod (10), and the second locking pin (17) can be inserted into the pin hole (101) to lock the backrest rod (10) and the push rod (3).

2. The infant stroller according to claim 1, characterized in that: It also comprises a shower head assembly, which comprises a shower head seat (18) fixedly mounted on the upper end of the backrest rod (10), a front shower head rod (19) and a rear shower head rod (20) rotatably connected to the shower head seat (18).

3. The infant stroller according to claim 2, characterized in that: The tent seat (18), the front tent rod (19) and the rear tent rod (20) are coaxially pin-connected.

4. The infant stroller according to claim 1, characterized in that: The front wheel support assembly (1), the rear wheel support assembly (2) and the backrest rod (10) are pin-connected with each other in an off-axis manner.

5. The infant stroller according to claim 1, characterized in that: The seat rod connecting rod (5) is rotatably connected to the middle position of the seat rod (8).

6. The infant stroller according to claim 1, characterized in that: The handrail rod (11) is rotatably connected to the middle position of the backrest rod (10).

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