A child's pushchair seat structure and a child's pushchair

Abstract

A child stroller seat structure and a child stroller, comprising a seat frame, a foot support, further comprising a seat extension frame slidingly arranged on the seat frame in the front-back direction, a seat surface locking mechanism arranged between the seat extension frame and the seat frame, the front part of the seat extension frame or the front part of the seat frame is rotationally connected with the upper part of the foot support, and the rotationally connected part is provided with a control mechanism which is controlled to be unlocked by rotating the foot support. The seat frame and the seat extension frame constitute a front-back telescopic mechanism, the control mechanism can be triggered by rotating the foot support, thereby controlling the seat surface locking mechanism to be unlocked, the seat frame and the seat extension frame can be adjusted in the front-back direction, thereby adjusting the size of the seat surface, meeting the actual needs of children in use and providing a comfortable space.

Description

Technical Field

[0001] This utility model relates to a children's stroller, and more particularly to a children's stroller seat structure. Background Technology

[0002] In the prior art, the stroller seat structure is an essential component of a stroller. It typically includes a seat frame with a seat surface, a footrest directly pivotally connected to the front of the seat frame, a footrest on the footrest, and a seat cover on the seat frame. The size of the seat surface in the stroller seat structure is not adjustable, which cannot meet the actual needs of children when using it.

[0003] For example, the backrest is usually rotatably mounted at the rear of the seat frame. The backrest is usually adjustable relative to the seat frame and can be locked in multiple angle positions such as sitting, semi-reclining and reclining positions through a backrest locking mechanism. The fixed length of the seat surface at the front and back cannot correspond to the backrest at each angle to provide a suitable seating space.

[0004] Therefore, it is necessary to propose a child stroller seat structure with an adjustable seat surface size and a child stroller in this utility model. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a child stroller seat structure.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a child stroller seat structure, including a seat frame, a footrest, and a seat extension frame that is slidably disposed on the seat frame in the front-back direction, and a seat surface locking mechanism disposed between the seat extension frame and the seat frame. The front part of the seat extension frame or the front part of the seat frame is rotatably connected to the upper part of the footrest, and a control mechanism is provided at the rotatable connection point to control the unlocking of the seat surface locking mechanism by rotating the footrest.

[0007] In some embodiments, the seat surface locking mechanism is capable of locking the seat extension frame and the seat frame in at least two working positions, front and rear.

[0008] In some embodiments, one of the front portion of the seat extension frame and the front portion of the seat frame is rotatably connected to the upper portion of the footrest, and a footrest locking mechanism is provided at the rotatable connection to lock the two together at at least one angular position.

[0009] In some embodiments, when the footrest locking mechanism is in the unlocked position, the footrest rotates upward to trigger the control mechanism, and when the footrest rotates upward to its limit position, the seat surface locking mechanism is unlocked.

[0010] In some embodiments, the footrest rotates upward to trigger the control mechanism, and the footrest rotates upward to its extreme position to control the seat surface locking mechanism to unlock.

[0011] In some embodiments, the control mechanism includes a movable member that is slidably or rotatably disposed at the front of the seat extension or the front of the seat frame, a traction cable with one end mounted on the movable member, the other end of the traction cable being connected to the seat surface locking mechanism, and a drive block disposed on the upper part of the footrest. When the footrest is rotated upward to its limit position, the drive block presses against the movable member, causing it to move by one stroke.

[0012] In some embodiments, a seat cover is installed on the seat frame, and a seat extension cover is connected to the front or rear of the seat cover. When the seat extension frame is pulled out relative to the seat frame and is in an extended state, the seat extension cover rests on the seat extension frame.

[0013] In some embodiments, the seat frame includes seat rods located on the left and right sides and a seat frame crossbar fixedly connected between the seat rods on both sides. The seat extension frame includes seat extension rods located on the left and right sides and an extension frame crossbar fixedly connected between the seat extension rods on both sides. The seat rods on each side and the seat extension rods are slidably arranged in the front-back direction, and the seat surface locking mechanism is provided between them.

[0014] The technical problem to be solved by this utility model is to provide a children's stroller.

[0015] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a children's stroller, which includes the children's stroller seat structure described in any one of the above, the children's stroller includes side supports arranged on the left and right sides, and the children's stroller is arranged between the side supports on both sides.

[0016] In some embodiments, the seat frame or the seat extension serves as a link of the side support on each side, or a folding slide is slidably provided on the seat frame or the seat extension along its front-to-back length direction, and the seat frame and the folding slide sliding thereon, or the seat extension and the folding slide sliding thereon, constitute a link of the side support on each side.

[0017] The scope of this utility model is not limited to technical solutions formed by specific combinations of the above-mentioned technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-mentioned technical features or their equivalent features. For example, technical solutions formed by substituting the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

[0018] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: This utility model provides a child stroller seat structure, in which the upper part of the footrest is rotatably connected to the front part of the seat frame or the front part of the seat extension frame that constitutes the front and rear telescopic mechanism. A control mechanism is provided at the rotatable connection. The control mechanism responds to the rotation trigger of the footrest, thereby controlling the seat surface locking mechanism of the front and rear telescopic mechanism to unlock. The seat frame and the seat extension frame can then be telescopically adjusted to adjust the size of the seat surface, meet the actual needs of children when using it, and provide a comfortable space. Attached Figure Description

[0019] Figure 1 This is a side view of a stroller; Figure 2 A schematic diagram showing the exploded structure of a child stroller seat. Figure 3 Cross-sectional view of the seat surface locking mechanism between the seat post and the seat extension post; Figure 4 A side sectional view of the stroller seat structure (footrest end bar flattened, seat locking mechanism in locked position); Figure 5 A side sectional view of the stroller seat structure (the footrest rod is rotated upwards to its limit position, the seat surface locking mechanism is unlocked, and the seat extension rod is pulled forward). The components include: 1. Seat frame; 11. Seat rod; 12. Seat frame crossbar; 2. Seat extension frame; 21. Seat extension rod; 22. Extension frame crossbar; 3. Footrest; 31. Footrest end rod; 31a. Drive block; 4. Seat surface locking mechanism; 41. Seat surface locking pin; 42. Seat surface spring; 5. Control mechanism; 51. Moving part; 52. Traction cable; 6. Footrest locking mechanism; 61. Footrest locking tooth; 62. Footrest spring; 63. Footrest button; 64. First locking tooth groove; 7. Folding slide; 100. Side bracket. Detailed Implementation

[0020] A stroller seat structure that is suitable for strollers with various folding configurations, for infants and toddlers to ride in.

[0021] Example 1, as shown in the accompanying drawings, describes a stroller seat structure including a seat frame 1, a seat extension frame 2 slidably inserted into the front of the seat frame 1 in a front-to-back direction, and a footrest 3 whose upper end is rotatably connected to the front end of the seat extension frame 2 via a first shaft. A seat surface locking mechanism 4 is provided between the seat extension frame 2 and the seat frame 1. In this embodiment, the seat locking mechanism 4 is unlocked by rotating the footrest 3 clockwise or counterclockwise relative to the seat extension frame by a set angle. Operation is convenient. The stroller seat structure is described in detail below: The seat frame 1 includes seat rods 11 located on the left and right sides, and two front and rear seat frame crossbars 12 fixedly connected between the seat rods 11 on both sides. The seat extension frame 2 includes seat extension rods 21 located on the left and right sides, and an extension frame crossbar 22 fixedly connected between the front parts of the seat extension rods 21 on both sides. Each seat extension rod 21 is slidably inserted into the cavity of the seat rod 11 in the front-back direction. (Not shown) An extended wide side extending towards the seat frame 1 can be fixed in the middle of the extension frame crossbar 22.

[0022] Specifically, there are two seat surface locking mechanisms 4, each disposed between the seat rod 11 and the seat extension rod 21 on each side. In the locked position, the seat extension rod 2 and the seat frame 1 cannot slide back and forth. The seat surface locking mechanism 4 can lock the seat extension rod 2 and the seat frame 1 in two working positions. The specific structure of the seat surface locking mechanism 4 is not an invention point; any mechanism that can lock two sliding rods is applicable. In this embodiment, it includes two seat surface locking holes opened along the lower tube surface of the seat rod 11, and also includes a seat surface locking pin 41 and a seat surface spring 42 that slide up and down at the lower end of the seat extension rod 21. The seat surface spring 42 acts on the seat surface locking pin 41 to make it pop out stably downward and insert into one of the seat surface locking holes.

[0023] In this embodiment, the footrest 3 includes two footrest end rods 31 on both sides and a footrest body fixed between the two footrest end rods 31. A control mechanism 5 for unlocking the seat surface locking mechanism 4 is provided at the rotatable connection between the upper end of each footrest end rod 31 and the front end of the seat extension frame 2. In this embodiment, the control mechanism 5 is triggered by rotating the footrest 3 upwards, i.e., clockwise. When the footrest 3 rotates upwards to its limit position, i.e., as... Figure 5 As shown, after rotating to the plane where the seat extension is located, continue to rotate upwards and tilt it up at an angle, such as 15° or 30°, in order to completely unlock the seat surface locking mechanism 4.

[0024] The control mechanism 5 includes a movable part 51 rotatably mounted at the front of the seat extension frame 2 about a first axis, a traction cable 52 with one end mounted on the movable part 51, and the other end of the traction cable 52 connected to the seat surface locking pin 41 of the seat surface locking mechanism 4. A drive block 31a is provided on the upper part of the footrest 3, as shown in the attached figure. Figure 4 Appendix Figure 5 As shown, when the footrest 3 rotates upward to its limit position, the drive block 31a presses against the movable part 51, pushing it to rotate one stroke. During this process, the traction cable 52 drags the seat surface locking pin 41 to slide and retract, thereby disengaging from the corresponding seat locking hole and unlocking it. Figure 5As shown, the footrest 3 is then pulled forward, and the seat extension 2 is pulled forward relative to the seat frame 1 to the extended state. The footrest 3 is released, and the footrest body falls under gravity. Under the action of the seat surface spring 42, the seat surface locking pin 41 springs downward into the seat surface locking hole on the front side. The seat surface locking mechanism 4 on each side locks the seat rod 11 and the seat extension rod 21 in the extended state.

[0025] To retract the seat extension bracket 2 relative to the seat frame 1 to its normal position, rotate the footrest 3 upwards to its limit position to unlock the seat locking mechanism 4. Then, push the seat extension bracket 2 backwards relative to the seat frame 1 to retract it, releasing the footrest 3. The footrest body falls under gravity, and under the action of the seat spring 42, the seat locking pin 41 springs downwards into the rear seat locking hole, as shown in the attached diagram. Figure 4 As shown, the seat surface locking mechanism 4 on each side locks the seat rod 11 and the seat extension rod 21 in the normal state.

[0026] A seat cover is riveted or tied to the seat frame 1. An extension seat cover is sewn to the front edge of the seat cover. When the seat extension frame 2 is retracted relative to the seat frame 1 in its normal state, the extension seat cover can be folded down onto the footrest 3 or folded under the seat cover. When the seat extension frame 2 is extended relative to the seat frame 1, the extension seat cover rests on the extended wide side of the seat extension frame 2, forming a front-to-back extended state.

[0027] In this embodiment, a footrest locking mechanism 6 is also provided between the upper end of the footrest 3 and the front end of the seat extension frame 2. The footrest locking mechanism 6 can be omitted, in which case the footrest 3 will fall naturally, with only one footrest position. In this embodiment, the footrest locking mechanism 6 can lock the footrest 3 in multiple angle positions, so that infants and young children have multiple footrest positions. The foot locking mechanism 6 can be any mechanism that can lock two rotating joints. In this embodiment, a first locking tooth groove 64 is provided at the front end of the seat extension frame 2, and a second locking tooth groove is provided at the upper end of the foot pedal rod 31. A foot locking tooth 61 is slidably disposed between the first locking tooth groove 64 and the second locking tooth groove. A foot spring 62 sleeved on the first shaft is provided in the first locking tooth groove 64. When the foot locking tooth 61 is pushed out, it is inserted into both the first locking tooth groove 64 and the second locking tooth groove at the same time, and the foot locking mechanism 6 is locked. There is no foot button 63 at the upper end of the foot pedal rod 31. The foot button 63 abuts against the foot locking tooth 61. Pressing the foot button 63 overcomes the foot spring 62 and causes the foot locking tooth 61 to disengage from the second locking tooth groove and fully enter the first locking tooth groove 64, and the foot locking mechanism 6 is unlocked. In this embodiment, the movable part 51 is also disposed in the first locking tooth groove 64 and is located between the bottom of the groove and the foot locking tooth 61, and is sleeved on the foot spring 62. When the foot locking tooth 61 is fully inserted into the first locking tooth groove 64, the foot end rod 31 can rotate, and the drive block 31a on the inner side of the upper end of the foot end rod 31 presses on the movable part 51 and pushes it to rotate one stroke.

[0028] The stroller seat structure also functions as a linkage within the stroller frame, participating in the unfolding or folding of the stroller. (See attached embodiment.) Figure 1 The stroller includes side supports 100 on the left and right sides, with the stroller positioned between the two side supports 100. A folding slide 7 is slidably mounted on the seat frame 1 along its front-to-back length, and the seat frame 1 and the folding slide 7 together form a telescopic link for each side support 100.

[0029] Example 2 (not illustrated) differs from Example 1 in that the seat frame is slidably positioned relative to the seat extension frame and located at the front. Each side's seat rod slides backward into the cavity of the seat extension rod. The front of the seat frame is connected to the upper part of the footrest via a first pivot. A control mechanism is also provided at this pivot connection. An extended wide side is installed in the middle of the seat crossbar of the seat frame. A seat surface locking mechanism is also provided between the seat frame and the seat extension frame. The seat cover is installed on the seat extension frame. A folding slide is slidably mounted on the seat frame along its front-to-back length. The seat frame and the folding slide constitute the telescopic linkage of each side support. When the footrest is rotated upward, it triggers the control mechanism, thereby unlocking the seat surface locking mechanism of the front-to-back telescopic mechanism. The seat extension frame can be manually pulled backward or pushed forward for adjustment, thus adjusting the front-to-back space of the seat surface to meet the actual needs of children and provide comfortable space.

[0030] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A stroller seat structure, comprising a seat frame (1) and a footrest (3), characterized in that: It also includes a seat extension frame (2) that is slidably mounted on the seat frame (1) in the front-back direction, and a seat surface locking mechanism (4) that is mounted between the seat extension frame (2) and the seat frame (1). The front part of the seat extension frame (2) or the front part of the seat frame (1) is rotatably connected to the upper part of the footrest (3), and a control mechanism (5) is provided at the rotatable connection point to control the unlocking of the seat surface locking mechanism (4) by rotating the footrest (3).

2. The stroller seat structure according to claim 1, characterized in that: The seat surface locking mechanism (4) can lock the seat extension frame (2) and the seat frame (1) in at least two working positions.

3. The stroller seat structure according to claim 1, characterized in that: The front part of the seat extension frame (2) or the front part of the seat frame (1) is rotatably connected to the upper part of the footrest (3), and a footrest locking mechanism (6) is provided at the rotatable connection to lock the two at at least one angular position.

4. The stroller seat structure according to claim 3, characterized in that: When the footrest locking mechanism (6) is in the unlocked position, the footrest (3) rotates upward to trigger the control mechanism (5). When the footrest (3) rotates upward to the limit position, the seat surface locking mechanism (4) is unlocked.

5. The stroller seat structure according to claim 1, characterized in that: The footrest (3) rotates upward to trigger the control mechanism (5), and the footrest (3) rotates upward to the limit position, controlling the seat surface locking mechanism (4) to unlock.

6. The stroller seat structure according to claim 1, characterized in that: The control mechanism (5) includes a movable part (51) that is slidably or rotatably disposed at the front of the seat extension frame (2) or the front of the seat frame (1), a traction cable (52) with one end mounted on the movable part (51), the other end of the traction cable (52) being connected to the seat surface locking mechanism (4), and a drive block (31a) being provided on the upper part of the footrest (3). When the footrest (3) is rotated upward to the limit position, the drive block (31a) presses on the movable part (51) to move it by one stroke.

7. The stroller seat structure according to claim 1, characterized in that: A seat cover is installed on the seat frame (1). A seat extension cover is connected to the front or rear of the seat cover. When the seat extension frame (2) is pulled out relative to the seat frame (1) and is in an extended state, the seat extension cover rests on the seat extension frame (2).

8. The stroller seat structure according to claim 1, characterized in that: The seat frame (1) includes seat rods (11) located on the left and right sides and a seat frame crossbar (12) fixedly connected between the seat rods (11) on both sides. The seat extension frame (2) includes seat extension rods (21) located on the left and right sides and an extension frame crossbar (22) fixedly connected between the seat extension rods (21) on both sides. The seat rods (11) on each side and the seat extension rods (21) are slidably arranged in the front-back direction, and the seat surface locking mechanism (4) is provided between them.

9. A stroller comprising the stroller seat structure according to any one of claims 1-8, characterized in that: The stroller includes side supports (100) on the left and right sides, and the stroller is positioned between the side supports (100) on both sides.

10. The stroller according to claim 9, characterized in that: The seat frame (1) or the seat extension frame (2) serves as a link for each side support (100), or a folding slide (7) is slidably provided on the seat frame (1) or the seat extension frame (2) along its front-to-back length direction. The seat frame (1) and the folding slide (7) sliding thereon, or the seat extension frame (2) and the folding slide (7) sliding thereon, constitute a link for each side support (100).

Images