Baby folding saddle frame and baby folding stroller

Abstract

The utility model belongs to the technical field of baby carriages, and particularly relates to a baby folding saddle frame and a baby folding bicycle. The utility model relates to a baby folding saddle frame which comprises a saddle plate. The backrest is rotationally connected with the seat plate, and a convex part is arranged on the backrest; the armrest seat is rotationally connected with the seat plate; the armrest teeth are connected with the seat plate and the armrest seat through fasteners; the armrest unlocking piece is respectively propped against the convex part and the armrest teeth; when the baby folding seat frame is in a first state, at least one part of the armrest teeth is located in the seat plate, and at least one part of the armrest teeth is located in the armrest seat; and when the baby folding seat frame is in a second state, the backrest rotates to a first preset angle towards the first preset direction, and the armrest unlocking piece is pushed to a first preset position towards the second preset direction by the convex part, so that the armrest unlocking piece completely pushes the armrest teeth out of the seat plate into the armrest seat. The baby carriage with the handrail can be folded and stored conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of baby stroller technology, specifically a baby folding stroller seat frame and a baby folding stroller. Background Technology

[0002] Strollers are widely used as a safe means of transportation for infants. However, traditional strollers are bulky, take up a lot of space, and are inconvenient to carry. Therefore, strollers have been designed to be foldable. Currently, strollers often feature armrests, which not only prevent infants from slipping out or falling accidentally, providing extra safety, but also help infants maintain balance while sitting. Furthermore, the armrests are easy for infants to grasp, increasing their sense of security. However, for the armrests to achieve these functions, they need to be reliably fixed to the stroller's seat frame, which limits the stroller's ability to fold smoothly. Utility Model Content

[0003] In view of this, the present invention provides a baby folding stroller seat frame and a baby folding stroller to solve the technical problem that baby strollers with armrests are not easy to fold in the prior art.

[0004] In a first aspect, this utility model provides a folding baby stroller seat frame, comprising:

[0005] Seat plate;

[0006] The backrest is rotatably connected to the seat plate, and the backrest is provided with a protrusion;

[0007] The armrest is rotatably connected to the seat plate;

[0008] The armrest teeth are connected to the seat plate and the armrest base by fasteners;

[0009] The armrest unlocking component abuts against the protrusion and the armrest tooth, respectively;

[0010] When the baby stroller seat frame is in the first state, at least a portion of the armrest teeth are located in the seat plate and at least a portion are located in the armrest seat;

[0011] When the baby folding stroller seat frame is in the second state, the backrest rotates to the first preset angle in the first preset direction, and the armrest unlocking member is pushed to the first preset position in the second preset direction by the protrusion, so that the armrest unlocking member pushes the armrest teeth completely out of the seat plate and into the armrest seat.

[0012] Preferably, the armrest unlocking component is provided with a first abutting surface, which abuts against the protrusion. When the protrusion rotates with the backrest in a first preset direction, the position on the protrusion that abuts against the first abutting surface is away from the rotation center of the protrusion in a second preset direction.

[0013] Preferably, the armrest unlocking component is provided with a first inclined surface, and the armrest teeth are provided with a second inclined surface that cooperates with the first inclined surface, and the first inclined surface and the second inclined surface are inclined relative to a second preset direction.

[0014] Preferably, the armrest unlocking component is provided with two first inclined surfaces, and the armrest teeth are provided with two second inclined surfaces, the two second inclined surfaces being located on opposite sides of the rotation center of the armrest teeth.

[0015] Preferably, it further includes a first spring disposed along a second preset direction. The first spring is located on the side of the armrest unlocking member away from the protrusion. When the armrest unlocking member is pushed to a first preset position by the protrusion in the second preset direction, the first spring is compressed.

[0016] Preferably, it further includes a second spring, which is arranged along the direction in which the armrest teeth are pushed out of the seat plate by the armrest unlocking member. The second spring is located between the armrest seat and the armrest teeth, and is in a compressed state when the armrest teeth are pushed out of the seat plate by the armrest unlocking member.

[0017] Preferably, the seat plate has a sliding groove, and the armrest unlocking member slides relative to the seat plate in the sliding groove.

[0018] Preferably, the handrail unlocking component is provided with a clearance groove, and the fastener passes through the clearance groove.

[0019] Preferably, the armrest base is provided with a first through hole, the armrest teeth are provided with a second through hole, the base plate is provided with a cylinder, the cylinder is provided with a third through hole, and one end of the fastener passes through the first through hole and the second through hole and is threadedly connected to the third through hole.

[0020] In a second aspect, the present invention also provides a baby folding stroller, including the baby folding stroller seat frame described in the first aspect.

[0021] Beneficial Effects: This utility model's folding stroller seat frame and folding stroller utilize a linkage mechanism between the armrest unlocking mechanism and the armrest teeth. When the backrest is rotated to a preset angle, the armrest unlocking mechanism pushes the armrest teeth completely out of the seat plate, releasing the fixed relationship between the armrest seat and the seat plate. This allows the stroller to fold smoothly, reducing space occupation and facilitating carrying and storage. In the unfolded state, part of the armrest teeth is located in the seat plate, and part is located in the armrest seat, ensuring the stability of the armrest and preventing the baby from slipping out of the stroller or accidentally falling, providing additional safety. Simultaneously, the armrest design makes it easy for the baby to grasp, increasing their sense of security. This utility model not only solves the folding problem but also retains the functionality of the armrest, helping the baby maintain balance and providing grip support, meeting various usage needs of the stroller. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0023] Figure 1 This is a partial structural diagram of the baby folding stroller seat frame of this utility model;

[0024] Figure 2 This is an exploded view of the baby folding stroller seat frame of this utility model;

[0025] Figure 3 This is a partial sectional view of the baby folding stroller seat frame in the unfolded state according to this utility model;

[0026] Figure 4 This is a partial sectional view of the baby folding stroller seat frame in the present invention when it is in the folded state;

[0027] Figure 5 This is a schematic diagram of the overall structure of the baby folding stroller seat frame in this utility model.

[0028] The components and their numbers shown in the picture:

[0029] Seat plate 11, slide groove 111, cylinder 112, backrest 12, protrusion 121, armrest tooth 13, second inclined surface 131, armrest unlocking part 14, first abutting surface 141, first inclined surface 142, clearance groove 143, first spring 15, second spring 16, fastener 17, armrest seat 18, seat frame fixing seat 19. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. It should be noted that, in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, embodiments of the present invention and the various features thereof can be combined with each other, all within the protection scope of the present invention.

[0031] Example 1

[0032] like Figure 1 and Figure 2 and Figure 5 As shown, this embodiment provides a baby folding stroller seat frame, which mainly includes a seat plate 11, a backrest 12, an armrest seat 18, armrest teeth 13, and an armrest unlocking component 14.

[0033] The base plate 11 can serve as a foundation for the installation and support of other parts.

[0034] The backrest 12 is rotatably connected to the seat plate 11, and the backrest 12 is provided with a protrusion 121; the backrest 12 can rotate relative to the seat plate 11 during the folding and unfolding of the stroller. The protrusion 121 on the backrest 12 is in different angular positions as the backrest 12 rotates. The seat plate 11 and the backrest 12 are respectively rotatably connected to the seat frame fixing seat 19 of the stroller.

[0035] The armrest seat 18 is rotatably connected to the seat plate 11. The armrest seat 18 can rotate relative to the seat plate 11 during the folding and unfolding of the stroller. However, when the stroller is fully unfolded and in use, the armrest seat 18 is fixed relative to the seat plate 11. In this embodiment, the armrest seat 18 and the seat plate 11 are set to be rotatable relative to each other, but the armrest teeth 13 can be used to keep the armrest seat 18 and the seat plate 11 relatively fixed.

[0036] In this embodiment, the armrest tooth 13 is connected to the seat plate 11 and the armrest base 18 by a fastener 17; the armrest tooth 13, the seat plate 11, and the armrest base 18 are constrained in the same axial direction by the fastener 17. The armrest tooth 13 can move along this axial direction.

[0037] In this embodiment, the armrest unlocking member 14 is used to unlock the relative rotation between the armrest seat 18 and the seat plate 11, wherein the armrest unlocking member 14 abuts against the protrusion 121 and the armrest tooth 13 respectively;

[0038] The baby folding stroller of this embodiment has at least two states: an unfolded state and a folded state. In this document, the unfolded state is also referred to as the first state, and the folded state as the second state. Figure 3 As shown, in this embodiment, when the stroller backrest 12 assembly is in the first state, at least a portion of the armrest teeth 13 is located in the seat plate 11, and at least a portion is located in the armrest seat 18. Since part of the armrest teeth 13 is in the seat plate 11 and part is in the armrest seat 18, the armrest teeth 13 are constrained by the seat plate 11 and cannot rotate relative to the seat plate 11, while the armrest seat 18 is also constrained by the armrest teeth 13 and cannot rotate relative to the seat plate 11. Therefore, in the unfolded state, the armrest seat 18 maintains a reliable fixed relationship with the seat plate 11, enabling the armrest seat 18 to provide safe and reliable support for the user. To prevent the armrest teeth 13 from rotating relative to the seat plate 11 or the armrest seat 18, the outer circumferential surface of the armrest teeth 13 can be set as a surface that is not cylindrical (112).

[0039] When the stroller backrest 12 assembly is in the second state, the backrest 12 faces a first preset direction ( Figure 1 Rotate to the first preset angle (in the direction indicated by the middle arrow a). Figure 1 (at the angle in the middle), the armrest unlocking part 14 is protruded from the protrusion 121 towards the second preset direction ( Figure 1 (In the direction indicated by the middle arrow b) push to the first preset position ( Figure 4 (in the middle position) so that the armrest unlocking member 14 pushes the armrest teeth 13 completely out of the seat plate 11 into the armrest seat 18.

[0040] When the stroller needs to be converted from an unfolded to a folded state, it can be moved along... Figure 1Rotating the backrest 12 in the direction indicated by the middle arrow a causes the protrusion 121 on the backrest 12 to rotate along with it until it contacts the armrest unlock mechanism. As the backrest 12 continues to rotate, the protrusion 121 pushes the armrest unlock mechanism 14 to move. During this movement, the armrest unlock mechanism 14 pushes the armrest teeth 13 towards a direction where they are completely disengaged from the seat plate 11. When the backrest 12 rotates to the first angle, the armrest unlock mechanism 14 moves to the first preset position. Figure 4 In the position of the armrest unlocking member 14, the armrest tooth 13 can be fully pushed out of the seat plate 11 into the armrest seat 18. Since the armrest tooth 13 has been fully removed from the seat plate 11 at this time, the armrest tooth 13 is no longer constrained by the armrest seat 18 and can rotate relative to the seat plate 11 so that the stroller can be folded and the space occupied can be reduced.

[0041] The armrest unlocking component 14 is provided with a first abutting surface 141, which abuts against the protrusion 121. When the protrusion 121 rotates with the backrest 12 in a first preset direction, the position of the protrusion 121 abutting against the first abutting surface 141 is away from the rotation center of the protrusion 121 in a second preset direction. Specifically, the distance between the surface of the protrusion 121 abutting against the first abutting surface 141 and the rotation center can be gradually increased along the rotation direction. In this way, the protrusion 121 can gradually push the armrest unlocking component 14 to the first preset position as it rotates with the backrest 12.

[0042] like Figure 3 and Figure 4 As shown, in this embodiment, the armrest unlocking member 14 is provided with a first inclined surface 142, and the armrest tooth 13 is provided with a second inclined surface 131 that cooperates with the first inclined surface 142. The first inclined surface 142 and the second inclined surface 131 are inclined relative to a second preset direction. With the aforementioned structure, when the armrest unlocking member 14 moves along the second direction, the second inclined surface 131 pushes the first inclined surface 142 to move. Since the first inclined surface 142 and the second inclined surface 131 are inclined relative to the second preset direction, the armrest tooth 13 is pushed by the armrest unlocking member 14 to a position completely detached from the seat plate 11.

[0043] The armrest unlocking component 14 is provided with two first inclined surfaces 142, and the armrest tooth 13 is provided with two second inclined surfaces 131. The two second inclined surfaces 131 are respectively located on opposite sides of the rotation center of the armrest tooth 13. In this embodiment, the first inclined surfaces 142 and second inclined surfaces 131 that cooperate with each other can also be provided on both sides of the rotation axis of the armrest tooth 13, so that the armrest tooth 13 can be pushed from both sides of the axis to move away from the seat plate 11. This can improve the stability of the movement process of the armrest tooth 13, so that the armrest tooth 13 can be smoothly pushed to the position of being completely separated from the seat plate 11.

[0044] This embodiment also includes a first spring 15 arranged along a second preset direction. The first spring 15 is located on the side of the armrest unlocking member 14 away from the protrusion 121. When the armrest unlocking member 14 is pushed to a first preset position by the protrusion 121 in the second preset direction, the first spring 15 is compressed.

[0045] During the process of the stroller going from the unfolded state to the folded state, the protrusion 121 will push the armrest unlocking member 14 to compress the first spring 15. During the process of the stroller going from the folded state to the unfolded state, the protrusion 121 will rotate with the backrest 12 to a position that does not contact the armrest unlocking member 14. At this time, the armrest unlocking member 14 can be reset under the drive of the first spring 15.

[0046] The backrest 12 assembly in this embodiment also includes a second spring 16. The second spring 16 is positioned along the direction in which the armrest teeth 13 are pushed out of the seat plate 11 by the armrest unlocking member 14. The second spring 16 is located between the armrest seat 18 and the armrest teeth 13. When the armrest teeth 13 are pushed out of the seat plate 11 by the armrest unlocking member 14, the second spring 16 is in a compressed state. During the process of the armrest unlocking member 14 moving in the second direction and pushing the armrest teeth 13 away from the seat plate 11, the second spring 16 is compressed. During the process of the stroller changing from an unfolded state to a folded state, the armrest unlocking member 14 retracts to the position of the unfolded state, and the armrest teeth 13, driven by the second spring 16, moves towards the armrest seat 18, eventually retracting to a position where part of it is located in the armrest seat 18 and part of it is located in the seat plate 11.

[0047] like Figure 3 and Figure 4 As shown, in this embodiment, the seat plate 11 has a groove 111, and the armrest unlocking member 14 slides relative to the seat plate 11 in the groove 111. This embodiment allows the armrest unlocking member 14 to be positioned in the groove 111 of the seat plate 11, and the groove 111 to constrain the armrest unlocking member 14 to move along a second preset direction. This not only makes the structure more compact but also improves the accuracy and reliability of the armrest unlocking member 14's movement.

[0048] like Figure 2 As shown, in this embodiment, the handrail unlocking component 14 is provided with a clearance groove 143, and the fastener 17 passes through the clearance groove 143. The clearance groove 143 can be set as an elongated strip, so that the handrail unlocking component 14 will not be affected by the fastener 17 during the movement along the second preset direction.

[0049] In this embodiment, the armrest seat 18 is provided with a first through hole, the armrest tooth 13 is provided with a second through hole, the seat plate 11 is provided with a cylinder 112, and the cylinder 112 is provided with a third through hole. One end of the fastener 17 passes through the first through hole and the second through hole and is threadedly connected to the third through hole. This embodiment achieves the rotatable connection between the armrest seat 18 and the seat plate 11 through the fastener 17, which is not only simple in structure but also highly reliable.

[0050] Example 2

[0051] This embodiment also provides a baby folding stroller, which includes the baby folding stroller backrest 12 assembly described in Embodiment 1.

[0052] Because this embodiment of the stroller uses the stroller backrest 12 assembly described in Embodiment 1, the stroller can be folded smoothly, reducing space occupation and making it easy to carry and store. Furthermore, in the unfolded state, part of the armrest teeth 13 is located in the seat plate 11, and part is located in the armrest seat 18, ensuring the stability of the armrest and preventing the baby from slipping out of the stroller or accidentally falling, providing additional safety. At the same time, the armrest design is also convenient for the baby to grasp, increasing their sense of security. This utility model not only solves the folding problem but also retains the functionality of the armrest, helping the baby maintain balance and providing grip support, meeting various usage needs of the stroller. It achieves smooth folding of the stroller, reducing space occupation and making it easy to carry and store.

[0053] The following describes the folding and unfolding process of the baby stroller:

[0054] Folding process:

[0055] Backrest 12 rotates: When the user rotates the backrest 12, the protrusion 121 on the backrest 12 rotates with the backrest 12 and gradually approaches the armrest unlocking part 14.

[0056] Pushing the armrest unlocking member 14: The protrusion 121 contacts the first abutment surface 141 of the armrest unlocking member 14, and as the backrest 12 continues to rotate, it pushes the armrest unlocking member 14 along the second preset direction ( Figure 1 and Figure 4 Move in the direction of (b).

[0057] Armrest tooth 13 retracts: The first inclined surface 142 of the armrest unlocking component 14 engages with the second inclined surface 131 of the armrest tooth 13, pushing the armrest tooth 13 to move along the axial direction, so that it completely retracts from the seat plate 11 and enters the armrest seat 18.

[0058] Spring compression: When the armrest unlocking member 14 moves, the first spring 15 is compressed; when the armrest tooth 13 exits the seat plate 11, the second spring 16 is also compressed.

[0059] Armrest seat 18 unlocks: After the armrest teeth 13 are completely disengaged from the seat plate 11, the armrest seat 18 is no longer constrained and can rotate relative to the seat plate 11. After the armrest seat 18 rotates, the backrest 12 enters a fully folded state, and the seat frame also enters a folded state.

[0060] Unfolding process:

[0061] Backrest 12 reset: The user rotates the backrest 12 in the opposite direction, and the protrusion 121 gradually moves away from the armrest unlocking part 14.

[0062] Spring reset: The first spring 15 pushes the armrest unlocking part 14 back to the initial position, and the second spring 16 pushes the armrest tooth 13 back into the seat plate 11.

[0063] Armrest teeth 13 are fixed: a portion of the armrest teeth 13 re-enters the seat plate 11, and the armrest seat 18 and the seat plate 11 are restored to a fixed relationship.

[0064] Backrest 12 unfolds: Backrest 12 returns to the unfolded position, the stroller returns to the unfolded state, and the armrests provide stable support again.

[0065] The above description is merely a specific embodiment of this utility model. Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model.

Claims

1. A baby stroller seat frame, characterized by, The baby folding car seat frame comprises: a seat plate; a backrest rotatably connected to the seat plate, the backrest being provided with a protruding part; an armrest seat rotatably connected to the seat plate; an armrest tooth connected to the seat plate and the armrest seat by a fastener; an armrest unlocking part abutting against the protruding part and the armrest tooth respectively; when the baby folding car seat frame is in a first state, at least a part of the armrest tooth is located in the seat plate and at least a part is located in the armrest seat; when the baby folding car seat frame is in a second state, the backrest is rotated to a first preset angle in a first preset direction, the armrest unlocking part is pushed to a first preset position in a second preset direction by the protruding part, so that the armrest unlocking part pushes the armrest tooth out of the seat plate and into the armrest seat completely.

2. The baby stroller seat frame of claim 1, wherein, The armrest unlocking part is provided with a first abutting surface, the first abutting surface abutting against the protruding part, and when the backrest is rotated in the first preset direction, the position of the protruding part abutting against the first abutting surface gradually moves away from the rotation center of the protruding part in the second preset direction.

3. The baby stroller seat frame of claim 1, wherein, The armrest unlocking part is provided with a first inclined surface, and the armrest tooth is provided with a second inclined surface matched with the first inclined surface, the first inclined surface and the second inclined surface are inclined relative to the second preset direction.

4. The baby stroller seat frame of claim 3, wherein, The armrest unlocking part is provided with two first inclined surfaces, and the armrest tooth is provided with two second inclined surfaces, the two second inclined surfaces are located on opposite sides of the rotation center of the armrest tooth.

5. The baby stroller seat frame of claim 1, wherein, Further comprising a first spring arranged in the second preset direction, the first spring is located on the side of the armrest unlocking part away from the protruding part, and when the armrest unlocking part is pushed to the first preset position in the second preset direction by the protruding part, the first spring is compressed.

6. The baby stroller seat frame of claim 1, wherein, Further comprising a second spring arranged in the direction in which the armrest tooth is pushed out of the seat plate by the armrest unlocking part, the second spring is located between the armrest seat and the armrest tooth, and when the armrest tooth is pushed out of the seat plate by the armrest unlocking part, the second spring is in a compressed state.

7. The baby stroller seat frame of claim 1, wherein The seat plate is provided with a sliding groove, and the armrest unlocking part slides relative to the seat plate in the sliding groove.

8. The baby stroller seat frame of claim 1, wherein, The armrest unlocking part is provided with an avoiding groove, and the fastener passes through the avoiding groove.

9. The baby stroller seat frame of any of claims 1-8, wherein, The armrest seat is provided with a first through hole, the armrest tooth is provided with a second through hole, the seat plate is provided with a cylinder, the cylinder is provided with a third through hole, and one end of the fastener passes through the first through hole, the second through hole and is threadedly connected with the third through hole.

10. A baby stroller characterized by The baby folding car seat frame comprises any one of claims 1 to 9. The baby folding car seat frame comprises any one of claims 1 to 9.

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