Stroller

Abstract

The child stroller is provided with a stroller frame and a seat assembly, the stroller frame comprises a left side frame and a right side frame, each side frame comprises a first leg and a second leg, the first leg of the left side frame is provided with a first restraining point, the second leg of the left side frame is provided with a second restraining point, and the seat assembly is provided with a third restraining point and a fourth restraining point. A fifth constraint point is arranged on the second leg of the right side frame, and a sixth constraint point is arranged on the first leg of the right side frame; the stroller is further provided with a strap, one end of the strap is connected to the first constraint point, and the other end of the strap movably penetrates through the second constraint point, the third constraint point, the fourth constraint point and the fifth constraint point continuously in sequence and then is connected to the sixth constraint point. In a folding state, the second leg is close to the first leg, the constraint points are close to each other, and the straps are loosened and form a bearing ring; in the unfolded state, the first leg and the second leg are away from each other, the constraint points are away from each other, and the straps are tightened. The arrangement of the straps is optimized, the frame state and the strap state are synchronized, assembly is easy, and work is stable.

Description

Technical Field

[0001] This application relates to the field of children's products, and particularly to baby strollers. Background Art

[0002] Baby strollers generally include a frame and a seat assembly disposed on the frame. To facilitate the carrying of the baby stroller, most baby strollers can be folded. To further facilitate the carrying of the baby stroller in the folded state, the prior art attempts to provide a strap on the stroller, and the strap provides a carrying loop for the user to carry by means of its loose part.

[0003] In the unfolded state of the baby stroller, the loose part of the strap is likely to drag on the ground, causing soiling or even getting caught in the moving parts of the stroller, leading to danger. Those skilled in the art have attempted to achieve the tightening / loosening of the strap through the unfolding / folding of the frame, so as to meet the usage requirements in different scenarios. The inventor has found that there is room for improvement in the strap arrangement in the prior art. Summary of the Utility Model

[0004] To solve the above technical problems, this application discloses a baby stroller, which has a frame in an unfolded state and a folded state and a seat assembly disposed on the frame. The frame includes a left side frame and a right side frame, and each side frame includes a first leg and a second leg that are hinged to each other. A first restraint point is provided on the first leg of the left side frame, a second restraint point is provided on the second leg of the left side frame, a third restraint point close to the left side frame and a fourth restraint point close to the right side frame are provided on the seat assembly, a fifth restraint point is provided on the second leg of the right side frame, and a sixth restraint point is provided on the first leg of the right side frame;

[0005] The baby stroller further includes a strap, one end of the strap is connected to the first restraint point, and the other end sequentially passes through the second restraint point, the third restraint point, the fourth restraint point, and the fifth restraint point in sequence and then is connected to the sixth restraint point;

[0006] When the frame is in the folded state, the second leg approaches the first leg, and each restraint point approaches each other to make the strap loose, and the strap between at least two of the restraint points can be away from the frame to form a carrying loop;

[0007] When the frame is in the unfolded state, the first leg and the second leg are away from each other, each restraint point is away from each other, and the strap is tightened by the pulling of each restraint point.

[0008] The following also provides several optional ways, which are not additional limitations to the above general solution, but only further supplements or optimizations. On the premise of no technical or logical contradiction, each optional way can be combined with the above general solution alone, or multiple optional ways can be combined with each other.

[0009] Optionally, during the process of the frame transitioning from the self-folding state to the unfolded state, the following constraint points move away from each other:

[0010] Between the first constraint point and the second constraint point;

[0011] Between the second constraint point and the third constraint point;

[0012] Between the fourth constraint point and the fifth constraint point;

[0013] Between the fifth constraint point and the sixth constraint point.

[0014] Optionally, each front foot includes a top hinged to the corresponding rear foot and a bottom for mounting a front wheel. Positioning holes for providing the first constraint point or the sixth constraint point are provided near each bottom.

[0015] Optionally, the strap is hinged to the positioning hole.

[0016] Optionally, each positioning hole is provided on the opposite sides of the two front feet.

[0017] Optionally, positioning rings are provided near the hinged positions of each rear foot. The positioning rings provide the second constraint point or the fifth constraint point, and the strap is movably threaded through each positioning ring.

[0018] Optionally, each positioning ring is open towards the left and right sides of the frame.

[0019] Optionally, each positioning ring is provided on the opposite sides of the two rear feet, and the strap penetrates through the positioning ring from the inside to the outside of the frame.

[0020] Optionally, the seat assembly includes a seat post hinged to the corresponding side frame and a cross bar connecting between the seat posts. A constraint ring is provided near the hinged position of the seat post with the corresponding side frame. The constraint ring provides the third constraint point or the fourth constraint point.

[0021] Optionally, when the frame is in the folded state, the seat assembly and the second leg are respectively close to both sides of the first leg;

[0022] When the frame is in the unfolded state, the seat assembly is placed flat to provide a seating plane. In the height direction of the frame, both ends of each constraint ring are open, and each constraint ring is lower than the seating plane.

[0023] Optionally, the strap penetrates through one of the constraint rings from bottom to top and then extends above the other constraint ring and penetrates through this constraint ring from top to bottom. When the frame is in the folded state, the part between the two constraint rings forms the carrying ring.

[0024] The technical solution disclosed in this application synchronizes the changes in the frame state and the strap state through the optimization of the strap setting, which is easy to assemble and has stable operation.

[0025] The specific beneficial technical effects will be further explained in combination with the specific structure or steps in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of a baby stroller in the unfolded state in an embodiment of the present application;

[0027] Figure 2 is Figure 1 another perspective schematic diagram of the baby stroller in the unfolded state in

[0028] Figure 3 It is a front view schematic diagram of the baby stroller in the unfolded state;

[0029] Figure 4 It is a side view schematic diagram of the baby stroller in the unfolded state;

[0030] Figure 5 It is a schematic structural diagram of the baby stroller in the folded state.

[0031] The descriptions of the reference numerals in the drawings are as follows:

[0032] 100, frame; 110, left frame; 120, right frame; 130, first leg; 131, front wheel; 132, positioning hole; 140, second leg; 141, rear wheel; 142, positioning ring; 150, push rod;

[0033] 200, seat assembly; 210, seat rod; 220, cross bar; 230, restraint ring;

[0034] 310, first restraint point; 320, second restraint point; 330, third restraint point; 340, fourth restraint point; 350, fifth restraint point; 360, sixth restraint point;

[0035] 400, strap; 410, carrying ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0037] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] See also Figure 1 , Figure 5 The present application discloses a child stroller, which has a frame 100 in an unfolded state and a folded state and a seat assembly 200 arranged on the frame 100. The frame 100 includes a left side frame 110 and a right side frame 120, each side frame includes a first leg 130 and a second leg 140 hinged to each other, a first restraint point 310 is provided on the first leg 130 of the left side frame 110, a second restraint point 320 is provided on the second leg 140 of the left side frame 110, a third restraint point 330 close to the left side frame 110 and a fourth restraint point 340 close to the right side frame 120 are provided on the seat assembly 200, a fifth restraint point 350 is provided on the second leg 140 of the right side frame 120, and a sixth restraint point 360 is provided on the first leg 130 of the right side frame 120;

[0040] The stroller is also provided with a shoulder strap 400, one end of which is connected to the first restraint point 310, and the other end of which continuously moves through the second restraint point 320, the third restraint point 330, the fourth restraint point 340 and the fifth restraint point 350 and then is connected to the sixth restraint point 360;

[0041] The frame 100 is in a folded state (see Figure 5 ), the second leg 140 is close to the first leg 130, and the restraining points are close to each other to achieve the relaxation of the shoulder strap 400, and the shoulder strap 400 between at least two restraining points can be away from the frame 100 to form a carrying ring 410;

[0042] The frame 100 is in the unfolded state (see Figure 1 ), the first leg 130 and the second leg 140 are away from each other, the restraining points are away from each other, and the shoulder strap 400 is pulled tight by the restraining points.

[0043] In the technical solution disclosed in the present application, the strap 400 is continuously threaded through each restraint point, and the two ends are respectively connected to the first restraint point 310 and the sixth restraint point 360 to form a continuous restraint path. During the process of the state change of the vehicle frame 100, each restraint point moves relative to each other and pulls or releases the strap 400, thereby synchronizing the state change of the vehicle frame 100 and the state change of the strap 400. Compared with the strap 400 setting scheme in the prior art, the threading path of the strap 400 in the present application is simple, easy to assemble, not prone to interference with each other during the working process, and the movement process is stable. In the figure, the first leg 130 is the front leg and the second leg 140 is the rear leg. In other embodiments, the first leg 130 can also be the rear leg, and correspondingly the second leg 140 is the front leg. As can be understood in combination with the accompanying drawings, during the process of the vehicle frame 100 entering the unfolded state from the folded state, the following restraint points move away from each other:

[0044] Between the first restraint point 310 and the second restraint point 320;

[0045] Between the second restraint point 320 and the third restraint point 330;

[0046] Between the fourth restraint point 340 and the fifth restraint point 350;

[0047] Between the fifth restraint point 350 and the sixth restraint point 360.

[0048] Among them, during the process of the state change of the vehicle frame 100 shown in the figure, the distance between the left frame 110 and the right frame 120 does not change. Therefore, the distance between the third restraint point 330 and the fourth restraint point 340 in the embodiment shown in the figure remains constant. In other embodiments, when the distance between the left frame 110 and the right frame 120 changes during the process of the state change of the vehicle frame 100, the distance between the third restraint point 330 and the fourth restraint point 340 also changes accordingly, and the third restraint point 330 and the fourth restraint point 340 participate in the state control process of the strap 400.

[0049] There are various forms in the specific implementation manners of each restraint point, which can be implemented in combination with the prior art or can also refer to Figures 2 to 4 the scheme shown in

[0050] In terms of the arrangement of the first leg 130, as shown in the figure, each front foot includes a top hinged to the corresponding rear foot and a bottom for mounting the front wheel 131. Positioning holes 132 for providing the first constraint point 310 or the sixth constraint point 360 are provided near each bottom. The harness 400 can be hinged to or fixedly connected to the positioning holes 132. Compared with other constraint points, the positioning holes 132 do not allow the harness 400 to move to establish a stressed area and allow the harness 400 to lift the frame 100. In the figure, each positioning hole 132 is provided on the opposite sides of the two front feet, that is, each positioning hole 132 is located inside the frame 100 to avoid interference of foreign objects with the harness 400.

[0051] In terms of the arrangement of the second leg 140, as shown in the figure, in one embodiment, positioning rings 142 are provided near the hinged positions of each rear foot. The positioning rings 142 provide the second constraint point 320 or the fifth constraint point 350, and the harness 400 movably passes through each positioning ring 142. Similarly to the front feet, each rear foot includes a top hinged to the front foot and a bottom for mounting the rear wheel 141. The positioning rings 142 are located on one side of the middle of the rear foot near the top. Each positioning ring 142 includes a body connected to the second leg 140 and a ring body provided on the body. The harness 400 passes through the ring body. In the height direction of the frame 100, the ring body extends towards both ends to form a slit, and the harness 400 is a flat belt and is adapted to the slit. The outer edge of the positioning ring 142 is triangular. Each positioning ring 142 is open towards the left and right sides of the frame 100. Each positioning ring 142 is provided on the opposite sides of the two rear feet, and the harness 400 passes through the positioning ring 142 from the inside to the outside of the frame 100.

[0052] In the way the seat assembly 200 is arranged, as shown in the figure, the seat assembly 200 includes two seat rods 210 hinged to the corresponding side frames and a cross bar 220 connected between the seat rods 210. A restraint ring 230 is provided near the hinge position of the seat rod 210 with the corresponding side frame, and the restraint ring 230 provides a third restraint point 330 or a fourth restraint point 340. In the figure, when the frame 100 is in the unfolded state, the seat assembly 200 is placed horizontally to provide a seating plane. In the height direction of the frame 100, both ends of each restraint ring 230 are open, and each restraint ring 230 is lower than the seating plane. Each restraint ring 230 is not only close to the hinge points of the first leg 130 and the second leg 140 respectively in the left - right direction of the frame 100, but also close to the hinge points of the first leg 130 and the second leg 140 respectively in the front - back direction of the frame 100, that is, each restraint ring 230 is located at the trailing edge of the seating plane. Correspondingly, the straps 400 between the restraint rings 400 avoid the child seating area. The strap 400 passes through one of the restraint rings 230 from bottom to top and then extends above another restraint ring 230 and passes through this restraint ring 230 from top to bottom. When the frame 100 is in the folded state, the part between the two restraint rings 230 forms a back - carrying ring 410. In the state transformation of the frame 100, the seat assembly 200 can also adjust its position synchronously. For example, when the frame 100 is in the folded state, the seat assembly 200 and the second leg 140 approach the two sides of the first leg 130 respectively. Except for Figure 1 the parts shown in the figure, components can be further arranged in the front - back direction to expand the seating plane, such as Figure 5 shown in the figure. Similarly, the components for expanding the seating plane can also move in coordination with the movement of the seat assembly 200 relative to the frame 100. It can be specifically implemented in combination with the prior art.

[0053] In Figure 1 the figure, each side frame further includes a push rod 150 coaxially hinged to the first leg 130 and the second leg 140. When the frame 100 is in the folded state, the first leg 130 and the push rod 150 are located on both sides of the second leg 140 respectively. Figure 5 In the figure, the push rod 150 can further be telescoped into a two - link mechanism or a telescopic mechanism to meet the height requirement of the frame 100. The specific structure of the push rod 150 can be implemented in combination with the prior art.

[0054] During the process of the frame 100 changing from the unfolded state to the folded state, each component cooperates with each other as described below:

[0055] Looking at the left side frame 110, in the front - back direction of the frame 100, the seat assembly and the second leg 140 of the left side frame 110 approach the first leg 130 of the left side frame 110 from both sides respectively. During this process,

[0056] The positioning hole 132 on the first leg 130 of the left frame 110 and the positioning ring 142 on the second leg 140 of the left frame 110 are close to each other, that is, the first constraint point 310 and the second constraint point 320 are close to each other;

[0057] The positioning ring 142 on the second leg 140 of the left frame 110 and the constraint ring 230 of the seat assembly close to the left frame 110 are close to each other, that is, the second constraint point 320 and the third constraint point 330 are close to each other;

[0058] The same applies to the right frame 120, that is, the fourth constraint point 340 and the fifth constraint point 350 are close to each other, and the fifth constraint point 350 and the sixth constraint point 360 are close to each other;

[0059] After each constraint point is close to each other, the back strap 400 can freely slide between each constraint point except the first constraint point 310 and the sixth constraint point 360, so as to allow a part to move away from the frame 100 to form a back loop for the user to carry on the back. Finally, the back strap 400 realizes the traction or lifting of the frame 100 through the first constraint point 310 and the sixth constraint point 360.

[0060] During the process of the frame 100 changing from the folded state to the unfolded state, each component moves in the reverse direction, so that the back strap 400 is tightened by the traction of each constraint point, avoiding the back strap 400 from affecting the normal use of the stroller.

[0061] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should be considered as falling within the scope described in this specification. When the technical features in different embodiments are shown in the same drawing, it can be regarded that the drawing also discloses the combination examples of the respective embodiments involved at the same time.

[0062] The above-described embodiments only represent several implementation manners of the present application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application.

Claims

1. A child stroller, comprising a frame in an unfolded state and a folded state and a seat assembly disposed on the frame, wherein the frame comprises a left side frame and a right side frame, each side frame comprises a first leg and a second leg hinged to each other, characterized in that: The first leg of the left frame is provided with a first restraint point, the second leg of the left frame is provided with a second restraint point, the seat assembly is provided with a third restraint point close to the left frame and a fourth restraint point close to the right frame, the second leg of the right frame is provided with a fifth restraint point, and the first leg of the right frame is provided with a sixth restraint point; The stroller is further provided with a shoulder strap, one end of which is connected to the first restraint point, and the other end of which continuously moves through the second restraint point, the third restraint point, the fourth restraint point and the fifth restraint point in sequence and then is connected to the sixth restraint point; When the frame is in a folded state, the second leg is close to the first leg, and the restraining points are close to each other to achieve the relaxation of the shoulder strap, and the shoulder strap between at least two restraining points can be away from the frame to form a carrying loop; When the frame is in an unfolded state, the first leg and the second leg are away from each other, the restraining points are away from each other, and the shoulder strap is pulled tight by the restraining points.

2. The stroller according to claim 1, characterized in that: When the frame moves from the folded state to the unfolded state, the following restraint points are spaced apart from each other: between the first constraint point and the second constraint point; between the second constraint point and the third constraint point; between the fourth constraint point and the fifth constraint point; between the fifth constraint point and the sixth constraint point.

3. The stroller according to claim 1, characterized in that: Each front foot includes a top hinged to the corresponding rear foot and a bottom for mounting the front wheel. A positioning hole for providing the first restraint point or the sixth restraint point is provided near each bottom, and the shoulder strap is hinged to the positioning hole.

4. The stroller according to claim 3, characterized in that: The positioning holes are arranged on opposite sides of the two front feet.

5. The stroller according to claim 1, characterized in that: A positioning ring is provided near the hinged position of each rear foot, and the positioning ring provides the second constraint point or the fifth constraint point. The shoulder strap is movably passed through each positioning ring.

6. The stroller according to claim 4, characterized in that: Each positioning ring is openly arranged toward the left and right sides of the frame.

7. The stroller according to claim 4, characterized in that: Each positioning ring is arranged on the opposite sides of the two rear legs, and the shoulder strap passes through the positioning ring from the inner side of the frame to the outside.

8. The stroller according to claim 1, characterized in that: The seat assembly comprises two seat rods hinged on corresponding side frames and a cross bar connected between the seat rods. A restraint ring is provided near the hinge position of the seat rod with the corresponding side frame, and the restraint ring provides the third restraint point or the fourth restraint point.

9. The stroller according to claim 8, characterized in that: When the frame is in a folded state, the seat assembly and the second leg are close to two sides of the first leg respectively; When the vehicle frame is in an unfolded state, the seat assembly is laid flat to provide a seating surface. In the height direction of the vehicle frame, both ends of each restraint ring are open, and each restraint ring is lower than the seating surface.

10. The stroller according to claim 8, characterized in that: The shoulder strap passes through one of the restraining rings from bottom to top and then extends to the top of the other restraining ring and passes through the restraining ring from top to bottom. When the frame is in a folded state, the portion between the two restraining rings constitutes the carrying ring.

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