Automatic telescopic mechanism of folding child seat

Abstract

The utility model discloses an automatic telescopic mechanism of a folding child seat, a seat frame of the automatic telescopic mechanism comprises a cushion frame and a backrest frame capable of rotating and folding relative to the cushion frame, a telescopic assembly capable of stretching relative to the backrest frame is arranged on the backrest frame, and the telescopic assembly is installed on the backrest frame in a sliding mode through a sliding piece. A linkage piece is rotationally connected between the seat cushion frame and the sliding piece; the child seat is novel and simple in structure, when the seat frame is folded, the seat cushion frame and the backrest frame are mutually folded, the seat cushion frame drives the sliding piece to slide down relative to the backrest frame through the linkage piece, at the moment, the telescopic assembly is in a folded state relative to the backrest frame, automatic folding of the whole height of the backrest part is achieved, the folding size of the whole child seat is further reduced, and the child seat is convenient to use. The occupied space and the storage space are further reduced, and carrying and storage are convenient.

Description

Technical Field

[0001] The utility model relates to the field of riding equipment, in particular to an automatic telescopic mechanism of a foldable child seat. Background Art

[0002] A child seat is a seat specially designed for children, usually used in conjunction with a stroller, making it convenient for parents to carry children when going out. Child seats are usually safe and comfortable, preventing children from falling while ensuring that the child remains comfortable in the seat. Folding child seats are widely used because they can reduce the size and make it easier to carry when going out.

[0003] The current foldable child seat is folded by bringing the backrest, armrest and seat cushion together. After folding, the length direction (longest distance) of the folded child seat mainly depends on the overall height of the back structure of the child seat. However, since the overall height of the backrest part of the existing foldable child seat is basically fixed, the overall length direction is still large after folding, and it is impossible to further reduce the overall folded volume and further reduce the occupied space and storage space. Summary of the invention

[0004] The utility model aims to provide an automatic telescopic mechanism for a foldable child seat, which has a novel and simple structure. When the child seat is folded and folded, the overall height of the backrest part can be automatically folded, thereby further reducing the overall folding volume and further reducing the occupied space and storage space.

[0005] The technical solution of the utility model is: an automatic telescopic mechanism of a foldable child seat, comprising a seat frame with an unfolded state and a folded state and a locking mechanism for locking the seat frame in the unfolded state, the seat frame comprising a cushion frame and a backrest frame that can be rotated and retracted relative to the cushion frame, the backrest frame is provided with a telescopic component that can be telescopic relative to the backrest frame, the telescopic component is slidably mounted on the backrest frame through a sliding member, and a linkage is rotatably connected between the cushion frame and the sliding member;

[0006] When the seat frame is unfolded, the sliding member slides to the highest position of the sliding member's sliding stroke relative to the back frame, and the telescopic assembly is in an extended state relative to the back frame; when the seat frame is folded, the cushion frame and the back frame are retracted against each other, and the cushion frame drives the sliding member to slide down relative to the back frame to the lowest position of the sliding stroke relative to the back frame through the linkage, and the telescopic assembly is in a retracted state relative to the back frame.

[0007] As a preferred technical solution, one end of the linkage is rotatably connected to the sliding member, and the other end is rotatably connected to the rear side of the cushion frame.

[0008] As a preferred technical solution, the rotation point of the linkage member and the seat cushion frame is located above and behind the rotation point of the backrest frame and the seat cushion frame.

[0009] One of the further technical solutions of the present utility model is that: the telescopic assembly is a backrest plate, and the backrest plate is installed and connected to the sliding member through a connecting rod. The backrest frame includes two side rods, and an upper support rod and a lower support rod arranged between the two side rods for the backrest plate to abut against and slide in cooperation; there are two sliding members respectively sleeved on the two side rods, and the connecting rod is transversely arranged on the backrest plate and its two ends are respectively rotatably connected to the sliding members.

[0010] Another further technical solution of the present utility model is that: the telescopic assembly is a awning rod. There are two sliding members respectively sleeved on the two side rods of the backrest frame, and the awning rod is a U-shaped rod with an opening downward, and the lower ends of its two sides are respectively fixed on the sliding members on both sides of the backrest frame.

[0011] Compared with the prior art, the present application has the following advantages: The structure of the present utility model is novel and simple. There is a telescopic assembly on the backrest frame that can be telescoped relative to it. When the seat frame is folded, the seat cushion frame and the backrest frame are folded together. The seat cushion frame drives the sliding member to slide downward relative to the backrest frame to the lowest position of the sliding stroke of the sliding member through the linkage member. At this time, the telescopic assembly is in a retracted state relative to the backrest frame, realizing the automatic retraction of the overall height of the backrest part, further reducing the folding volume of the entire children's seat, further reducing the occupied space and storage space, and facilitating carrying and storage. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for description in the embodiments will be briefly introduced below. The drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0013] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions under which the present utility model can be implemented. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed by the present utility model.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the first embodiment of the present utility model in the unfolded state;

[0015] Figure 2 is Figure 1Schematic diagram of the side structure in the unfolded state;

[0016] Figure 3 is Figure 2 schematic diagram of the cross-sectional structure of;

[0017] Figure 4 is Figure 1 schematic diagram of the side structure during the folding process;

[0018] Figure 5 is Figure 4 schematic diagram of the cross-sectional structure of;

[0019] Figure 6 is Figure 1 schematic diagram of the side structure in the folded state;

[0020] Figure 7 is Figure 6 schematic diagram of the cross-sectional structure of;

[0021] Figure 8 Schematic diagram of the three-dimensional structure of the first embodiment of the present utility model in the folded state;

[0022] Figure 9 Schematic diagram of the three-dimensional structure of the second embodiment of the present utility model in the unfolded state;

[0023] Figure 10 is Figure 9 schematic diagram of the side structure in the unfolded state;

[0024] Figure 11 is Figure 10 schematic diagram of the cross-sectional structure of;

[0025] Figure 12 is Figure 9 schematic diagram of the side structure during the folding process;

[0026] Figure 13 is Figure 12 schematic diagram of the cross-sectional structure of;

[0027] Figure 14 is Figure 9 schematic diagram of the side structure in the folded state;

[0028] Figure 15 Schematic diagram of the three-dimensional structure of the second embodiment of the present utility model in the folded state.

[0029] Wherein: 1 seat cushion frame;

[0030] 2 backrest frame; 201 side rod; 202 upper support rod; 203 lower support rod;

[0031] 3 telescopic assembly; 3a backrest plate; 301 connecting rod; 3b awning rod;

[0032] 4 Sliding member;

[0033] 5 Linking member;

[0034] 6 Socket;

[0035] 7 Front armrest assembly;

[0036] 8 Footrest. Detailed implementation manner

[0037] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present application without creative efforts fall within the scope of protection of the present application. It can be understood that, without conflict, some technical means described in the various embodiments herein may be replaced or combined with each other.

[0038] In the description of the specification and claims of the present application, if there are terms such as "first", "second", etc., they are only used to distinguish the described objects and do not have any sequential or technical meaning. Thus, the objects defined with "first", "second", etc. may explicitly or implicitly include one or more of such objects. Also, words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one, and "multiple" means not less than two.

[0039] In the description of the specification and claims of the present application, if there are terms such as "connection", "installation", "fixation", "accommodation", etc., unless otherwise specified, they should all be understood in a broad sense. For example, "connection" can be a split connection or an integral connection; it can be directly connected or indirectly connected through an intermediate medium; it can be a non-detachable connection or a detachable connection. Again, for example, "accommodation" does not necessarily mean that the whole is completely accommodated, and this concept also includes a situation where a part protrudes outside and is partially accommodated. For those skilled in the art, the specific meanings of the foregoing terms in the present application can be understood according to specific circumstances.

[0040] In the description of the specification and claims of the present application, if there are terms such as "upper", "lower", "horizontal", etc., indicating the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. This is only for the purpose of clearly and simply describing the present application, rather than indicating or implying that the indicated elements must have a specific direction, be constructed and operated in a specific orientation. These directional terms are relative concepts used for description and clarification with respect to each other, and can change accordingly with the change in the orientation of the components placed in the drawings. For example, if the device in the figure is flipped, the element described as "below" other elements will be positioned "above" other elements.

[0041] In the description of the specification and claims of the present application, if there is the term "if", depending on the context, it can generally be interchanged with "when", "while", "in response to determining", or "in response to detecting".

[0042] In the description of the specification and claims of the present application, if there is "in the direction of" regarding motion, including motion with a direction component, it is not necessarily to understand the term "in the direction of" as only motion in that one direction. For those skilled in the art, the specific meaning of the foregoing term in the present application can be understood according to the specific situation.

[0043] Example 1: As Figures 1 to 8 shown, an automatic telescopic mechanism for a folding child seat includes a seat frame having a deployed state and a folded state, and a locking mechanism for locking the seat frame in the deployed state. The seat frame includes a seat cushion frame 1 and a backrest frame 2 that can rotate and fold relative to the seat cushion frame 1. A backrest plate 3a that can telescopically move relative to the backrest frame 2 is provided on the backrest frame 2. The backrest plate 3a is slidably mounted on the backrest frame 2 through a sliding member 4. A linkage member 5 is rotatably connected between the seat cushion frame 1 and the sliding member 4. One end of the linkage member 5 is rotatably connected to the sliding member 4, and the other end is rotatably connected to the rear side of the seat cushion frame 1.

[0044] In this embodiment, the backrest frame 2 includes two side rods 201, and an upper support rod 202 and a lower support rod 203 that are arranged between the two side rods 201 and are used for the backrest plate 3a to abut against and slidably cooperate with. The sliding members 4 are two and are respectively sleeved on the two side rods 201. A connecting rod 301 is horizontally arranged on the backrest plate 3a, and both ends of the connecting rod 301 are rotatably connected to the sliding members 4 respectively.

[0045] Example 2: As Figures 9 to 15As shown in the figure, an automatic telescopic mechanism for a folding children's seat includes a seat frame having a deployed state and a folded state, and a locking mechanism for locking the seat frame in the deployed state. The seat frame includes a seat cushion frame 1 and a backrest frame 2 that can rotate and fold relative to the seat cushion frame 1. A awning rod 3b that can telescopically move relative to the backrest frame 2 is provided on the backrest frame 2. The awning rod 3b is slidably mounted on the backrest frame 2 through a sliding member 4. A linkage member 5 is rotatably connected between the seat cushion frame 1 and the sliding member 4. One end of the linkage member 5 is rotatably connected to the sliding member 4, and the other end is rotatably connected to the rear side of the seat cushion frame 1.

[0046] In this embodiment, there are two sliding members 4 which are respectively sleeved on the two side rods 201 of the backrest frame 2. The awning rod 3b is a U-shaped rod with an opening downward, and the lower ends of its two sides are respectively fixed on the sliding members 4 on both sides of the backrest frame 2. An auxiliary awning rod that can be turned over and adjusted back and forth can also be installed on the sliding member 4 to adjust the opening angle and whether the sunshade is opened or not. Since the folding sunshade is a conventional technology in the technical field, no specific limitation and elaboration are made here.

[0047] Embodiment 3: On the basis of Embodiment 1, the awning rod 3b described in Embodiment 2 is also installed on the sliding member 4, that is, the backrest plate 3a and the awning rod 3b described above are installed on the sliding member 4 at the same time. When the seat frame is folded, the backrest plate 3a and the awning rod 3b on the sliding member 4 can synchronously move down along the backrest frame 2 and be retracted relative to the backrest frame 2.

[0048] In this embodiment, an auxiliary awning rod that can be turned over and adjusted back and forth can also be installed on the sliding member 4 to adjust the opening angle and whether the sunshade is opened or not. Since the folding sunshade is a conventional technology in the technical field, no specific limitation and elaboration are made here.

[0049] In the above three embodiments, the rotating connection part between the seat cushion frame 1 and the backrest frame 2 is in the shape of a disc protruding upward, and the rotation point of the linkage member 4 and the seat cushion frame 1 is located above and behind the rotation point of the backrest frame 2 and the seat cushion frame 1. In this way, when the seat cushion frame 1 and the backrest frame 2 are folded together, the rotation point of the linkage member 5 and the seat cushion frame 1 will rotate backward around the rotation point of the backrest frame 2 and the seat cushion frame 1. In this way, the linkage member 5 will drive the sliding member 4 to slide down along the backrest frame 2, so as to drive the telescopic assembly 3 (the backrest plate 3a and / or the awning rod 3b) to move down relative to the backrest frame 2 and realize the retraction of the two.

[0050] In the above three embodiments, the seat frame further includes a socket 6, a front armrest assembly 7, and a footrest 8 for detachable assembly with the stroller frame. The socket 6 is preferably arranged at the rear of the seat cushion frame 1. Since the seat frame with the socket 6, the front armrest assembly 7, and the footrest 8 is a conventional technique in the technical field, and the locking mechanism for locking the seat frame in the unfolded state is also a conventional technique in the technical field with various structural types, no specific limitation and elaboration will be made here.

[0051] The working principle of the present utility model is as follows:

[0052] When the seat frame is unfolded, the sliding member 4 slides relative to the backrest frame 2 to the highest position of the sliding stroke of the sliding member. At this time, the telescopic assembly 3 (backrest plate 3a and / or awning rod 3b) is in an extended state relative to the backrest frame 2;

[0053] When the seat frame is folded, the seat cushion frame 1 and the backrest frame 2 are folded together. The seat cushion frame 1 drives the sliding member 4 to slide downward relative to the backrest frame 2 to the lowest position of the sliding stroke of the sliding member through the linkage member 5. At this time, the telescopic assembly 3 (backrest plate 3a and / or awning rod 3b) is in a retracted state relative to the backrest frame 2.

[0054] The structure of the present utility model is novel and simple. The backrest frame 2 is provided with a telescopic assembly 3 (backrest plate 3a and / or awning rod 3b) that can be telescopic relative to it. When the children's seat is folded and retracted, the rotating seat cushion frame 1 drives the sliding member 4 and the telescopic assembly 3 (backrest plate 3a and / or awning rod 3b) to move downward and retract relative to the backrest frame 2, realizing the automatic retraction of the overall height of the backrest part, further reducing the folding volume of the entire children's seat, further reducing the occupied space and storage space, and facilitating carrying and storage.

[0055] As a preferred embodiment of the present invention, in the description of this specification, the description referring to terms such as "preferred" and "optional" means that the specific features, structures, materials, or characteristics described in connection with this embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0056] The above embodiments are only used to illustrate the detailed solutions of the present invention. The present invention is not limited to the above detailed solutions, that is, it does not mean that the present invention must rely on the above detailed solutions to be implemented. Those skilled in the art should understand that any improvement to the present invention, the equivalent replacement of each raw material of the present invention's product, the addition of auxiliary components, and the selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

Claims

1. An automatic telescopic mechanism for a foldable child seat, comprising a seat frame having an unfolded state and a folded state and a locking mechanism for locking the seat frame in the unfolded state, the seat frame comprising a cushion frame and a backrest frame that can be rotated and retracted relative to the cushion frame, characterized in that: The backrest frame is provided with a telescopic assembly that can be telescoped relative to the backrest frame, the telescopic assembly is slidably mounted on the backrest frame via a sliding member, and a linkage member is rotatably connected between the cushion frame and the sliding member; When the seat frame is unfolded, the sliding member slides to the highest position of the sliding member's sliding stroke relative to the back frame, and the telescopic assembly is in an extended state relative to the back frame; when the seat frame is folded, the cushion frame and the back frame are retracted against each other, and the cushion frame drives the sliding member to slide down relative to the back frame to the lowest position of the sliding member's sliding stroke via the linkage member, and the telescopic assembly is in a retracted state relative to the back frame.

2. The automatic telescopic mechanism of a foldable child seat according to claim 1, characterized in that: One end of the linkage is rotatably connected to the sliding member, and the other end is rotatably connected to the rear side of the cushion frame.

3. The automatic telescopic mechanism of a foldable child seat according to claim 2, characterized in that: The rotation point of the linkage member and the seat cushion frame is located above and behind the rotation point of the backrest frame and the seat cushion frame.

4. The automatic telescopic mechanism of a foldable child seat according to claim 1, characterized in that: The telescopic component is a backrest plate, and the backrest plate is installed and connected with the sliding member through a connecting rod.

5. The automatic telescopic mechanism of a foldable child seat according to claim 4, characterized in that: The backrest frame includes two side rods and an upper support rod and a lower support rod arranged between the two side rods for the backrest board to abut and slide with; there are two sliding members and they are respectively sleeved on the two side rods, and the connecting rod is transversely arranged on the backrest board and its two ends are respectively rotatably connected to the sliding members.

6. The automatic telescopic mechanism of a foldable child seat according to claim 1, characterized in that: The telescopic component is a canopy rod.

7. The automatic telescopic mechanism of a foldable child seat according to claim 6, characterized in that: There are two sliding members which are respectively sleeved on the two side rods of the backrest frame. The canopy rod is a U-shaped rod with an opening downward, and the lower ends of the two sides are respectively fixed on the sliding members on the two sides of the backrest frame.

Images