Child safety seat with foldable backrest

Abstract

The utility model provides a child safety seat with a foldable backrest. The child safety seat comprises the backrest, a base and a backrest lock catch, and an elastic piece is arranged between the backrest lock catch and the base. The lower end of the backrest is provided with two base connecting parts, each base connecting part is provided with a clamping groove, the upper end of the base upper cover is provided with two backrest connecting parts, the two backrest connecting parts are rotatably connected with the two base connecting parts respectively, and the base upper cover is provided with plug pin telescopic openings which are opposite to the two clamping grooves in a one-to-one mode; the backrest lock catch comprises a pressing part and two lock heads, the two lock heads respectively extend out of the two bolt telescopic openings and are inserted into the corresponding clamping grooves to lock the backrest, so that the backrest and the base are in an L shape, the pressing part is exposed outside, the elastic piece can generate elastic deformation by pressing the pressing part downwards, and the two lock heads respectively retreat from the corresponding clamping grooves to unlock the backrest. And the backrest can be rotationally folded relative to the base. The space occupied by the child safety seat can be greatly reduced after the child safety seat is folded.

Description

Technical Field

[0001] This utility model relates to the technical field of child safety seats, and more specifically to a child safety seat with a foldable backrest. Background Technology

[0002] The law stipulates that children under 12 years old, weighing less than 36 kg, and shorter than 145 cm must use child safety seats when traveling in a car. Families with children typically install dedicated child safety seats in the back seat of their cars. Child safety seats mainly consist of a base and a backrest. The backrest is set on the base for the child to lean against. Currently, to ensure safety, the base and backrest are usually connected in an L-shape and are not detachable, resulting in a large overall space occupied by the child safety seat. When it is necessary to temporarily remove the child safety seat during a car trip for passenger or cargo transport, the removed child safety seat takes up a significant amount of trunk space, greatly reducing the space available for other items and causing considerable inconvenience. Furthermore, child safety seats require substantial packaging space during sales and transportation, leading to high transportation costs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a child safety seat with a foldable backrest. The base and backrest can be folded, which can greatly reduce the space occupied after folding, making it convenient for transportation, reducing transportation costs, and also convenient to store in the car for backup.

[0004] The technical solution of this utility model is to provide a child safety seat with a foldable backrest, including a backrest and a base. The base includes a base upper cover, a base lower cover, and a backrest latch disposed within the base upper cover. An elastic element is provided between the backrest latch and the base. Two base connecting parts are provided at the lower end of the backrest, each with a slot. Two backrest connecting parts are provided at the upper end of the base upper cover, and the two backrest connecting parts are rotatably connected to the two base connecting parts respectively. The base upper cover is provided with a pin telescopic opening corresponding to the two slots. The backrest latch includes a pressing part and two locking heads. The two locking heads extend from the two pin telescopic openings and insert into the corresponding slots to lock the backrest, making the backrest and base form an L-shape. The pressing part is exposed. Pressing down on the pressing part causes the elastic element to elastically deform, and the two locking heads disengage from their corresponding slots to unlock the backrest, allowing the backrest to rotate and fold relative to the base.

[0005] Compared with the prior art, the child safety seat with a foldable backrest of this utility model has the following advantages: the base and the backrest are rotatably connected by two backrest connecting parts and two base connecting parts, which reduces the connection area and prevents the backrest from swaying or shifting relative to the base; two locks are inserted into corresponding slots to lock the backrest, making the backrest and the base L-shaped, which makes the connection between the base and the backrest stable and ensures the safety of children; pressing down the pressing part can unlock the backrest, allowing the backrest to rotate and fold relative to the base. After folding, the space occupied by the child safety seat can be greatly reduced, which is convenient for transportation, reduces transportation costs, and is also convenient for storage in the car for backup.

[0006] Preferably, each base connecting part is provided with a shaft connecting groove, and each backrest connecting part is provided with a backrest connecting shaft. The two backrest connecting shafts are rotatably limited within the two shaft connecting grooves. This structure is simple and facilitates the assembly of the backrest and base; installation can be completed simply by inserting the backrest connecting shaft into the shaft connecting groove.

[0007] Preferably, the two slots are respectively located on the outer walls of the two shaft connecting slots, and the two pin telescopic openings are respectively located below the two backrest connecting shafts. This structure is simple and allows for easy insertion of the two locking heads into their respective slots to lock the backrest.

[0008] Preferably, there are two elastic elements, each positioned below one of the two lock heads. This structure, with elastic elements positioned below both lock heads, ensures that the extension and retraction movements of the two lock heads are balanced and consistent, preventing inconsistent movement of the two lock heads when the elastic elements rebound.

[0009] Preferably, the elastic element is a locking spring. The upper ends of both locking springs are connected to the upper cover of the base, and the lower ends of both locking springs are connected to the backrest latches located below the two lock heads. With this structure, when the pressing part is pressed down, the locking springs are stretched. When the backrest is rotated upwards until the two slots are aligned with the two pin extension ports, the locking springs rebound and pull the backrest latches back to their original position. The two lock heads then extend from the two pin extension ports and insert into the corresponding slots to lock the backrest again.

[0010] Preferably, the backrest latch has a spring connecting part below each of the two lock heads. The spring connecting part is a ring structure or a connecting hole for attaching the lower end of the latch spring. This structure facilitates the assembly of the latch spring.

[0011] Preferably, the base cover has spring mounting slots below the backrest connection, and each spring mounting slot has a connecting hole for attaching the upper end of the latch spring. This structure facilitates the assembly of the latch spring.

[0012] Preferably, the outer wall of the shaft connecting groove is provided with a limiting guide surface, which is adjacent to the slot; after the two lock heads are disengaged from their corresponding slots, they can slide along the two limiting guide surfaces respectively. With this structure, when the latch spring returns, it is beneficial for the two lock heads to reset and lock the backrest; after the backrest is unlocked, if the backrest is rotated downwards, the two lock heads will slide forward along the two limiting guide surfaces until the backrest and the base are folded; if the backrest is rotated upwards, the two lock heads will slide backwards along the two limiting guide surfaces until they are inserted into the corresponding slots to lock the backrest, so that the backrest and the base are in an L-shape. Attached Figure Description

[0013] Figure 1 This is an exploded view of the child safety seat with a foldable backrest according to this utility model.

[0014] Figure 2 This is a structural diagram of the child safety seat with a foldable backrest in the unfolded state.

[0015] Figure 3 for Figure 2 A sectional view.

[0016] Figure 4 for Figure 3 Enlarged view of the structure of region A in the middle.

[0017] Figure 5 This is a schematic diagram of the structure of the child safety seat with a foldable backrest in the folded state.

[0018] Figure 6 for Figure 5 A sectional view.

[0019] Figure 7 for Figure 6 Enlarged view of the structure of region A in the middle.

[0020] As shown in the figure: 1. Body, 2. Headrest, 3. Headrest handle, 4. Headrest shift pin, 5. Headrest handle compression spring, 6. Base cover, 6-1. Backrest connecting part, 6-2. Backrest connecting shaft, 6-3. Tension spring mounting groove, 6-4. Pin telescopic port, 7. Backrest latch, 7-1. Lock head, 7-2. Pressing part, 7-3. Tension spring connecting part, 8. Latch tension spring, 9. Base shift handle tension spring, 10. Base shift shaft, 11. Base shift handle, 12. Base cover, 13. Backrest, 13-1. Base connecting part, 13-2. Shaft connecting groove, 13-3. Slot, 13-4. Limiting guide surface. Detailed Implementation

[0021] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0022] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.

[0023] It should also be understood that the terms "comprising," "having," "including," and "containing," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. Furthermore, when expressions such as "...at least one" appear after a list of listed features, they modify the entire listed feature, not individual elements in the list.

[0024] like Figure 1 As shown, the child safety seat with a foldable backrest of this utility model includes a backrest 13 and a base. The base includes a base upper cover 6, a base lower cover 12, and a backrest latch 7 disposed in the base upper cover 6.

[0025] The lower end of the backrest 13 is provided with two base connecting parts 13-1. Each base connecting part 13-1 is provided with a shaft connecting groove 13-2. Each of the two shaft connecting grooves 13-2 has a slot 13-3 on its outer side wall. Each shaft connecting groove 13-2 has a limiting guide surface 13-4 on its outer side wall. The limiting guide surface 13-4 is adjacent to the slot 13-3.

[0026] The upper end of the base cover 6 is provided with two backrest connecting parts 6-1, and each backrest connecting part 6-1 is provided with a backrest connecting shaft 6-2. The two backrest connecting shafts 6-2 can be rotatably embedded in two shaft connecting grooves 13-2 respectively. The base cover 6 is provided with a pin telescopic port 6-4 below each of the two backrest connecting shafts 6-2. The pin telescopic port 6-4 is arranged opposite to the slot 13-3.

[0027] The backrest latch 7 includes a pressing part 7-2 and two locking heads 7-1. The two locking heads 7-1 extend from the two pin telescopic ports 6-4 and insert into the corresponding slots 13-3 to lock the backrest 13, so that the backrest 13 and the base are in an L-shape. Figures 2 to 4 As shown in the image.

[0028] An elastic element is provided between the backrest latch 7 and the base cover 6. The elastic element is two latch springs 8. The base cover 6 has a spring mounting groove 6-3 below the backrest connecting part 6-1. The spring mounting groove 6-3 has a connecting hole for attaching the upper end of the latch spring 8. The backrest latch 7 has a spring connecting part 7-3 below the two lock heads 7-1. The spring connecting part 7-3 is a ring structure or a connecting hole for attaching the lower end of the latch spring 8.

[0029] The pressing part 7-2 is in the shape of a pull ring. A window is provided on the upper cover 6 of the base, through which the pressing part 7-2 is exposed. A person can reach through the window and press down on the pressing part 7-2, causing the two locking heads 7-1 to disengage from their corresponding slots 13-3, unlocking the backrest 13. This allows the backrest 13 to rotate and fold relative to the base. Figures 5 to 7 As shown in the diagram, during the pressing of the pressing part 7-2, both locking springs 8 are stretched. During the forward rotation and folding of the backrest 13 relative to the base, the two locking heads 7-1 slide forward along the two limiting guide surfaces 13-4 respectively.

[0030] As the backrest 13 rotates and unfolds relative to the base, the two locking heads 7-1 slide backward along the two limiting guide surfaces 13-4 until they reach the corresponding slots 13-3. The two locking springs 8 rebound, causing the two locking heads 7-1 to insert into the corresponding slots 13-3, locking the backrest 13 again, so that the backrest 13 and the base are in an L-shape.

[0031] The above are merely specific embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Any modifications or equivalent substitutions to this utility model without departing from its spirit and scope should be covered within the protection scope of the claims of this utility model.

Claims

1. A child safety seat with a foldable backrest, comprising a backrest (13) and a base, characterized in that, The base includes a base cover (6), a base cover (12), and a backrest latch (7) located inside the base cover (6). An elastic element is provided between the backrest latch (7) and the base. Two base connecting parts (13-1) are provided at the lower end of the backrest (13), each with a slot (13-3). Two backrest connecting parts (6-1) are provided at the upper end of the base cover (6). The two backrest connecting parts (6-1) are rotatably connected to the two base connecting parts (13-1). The base cover (6) has a slot that corresponds to the two slots (13-3). A pair of corresponding telescopic pin openings (6-4); the backrest latch (7) includes a pressing part (7-2) and two locking heads (7-1). The two locking heads (7-1) extend from the two telescopic pin openings (6-4) and are inserted into the corresponding slots (13-3) to lock the backrest (13), so that the backrest (13) and the base are in an L-shape. The pressing part (7-2) is exposed. Pressing down the pressing part (7-2) can cause the elastic element to undergo elastic deformation, and the two locking heads (7-1) will exit the corresponding slots (13-3) to unlock the backrest (13), so that the backrest (13) can rotate and fold relative to the base.

2. The child safety seat with a foldable backrest according to claim 1, characterized in that, The base connecting part (13-1) is provided with a shaft connecting groove (13-2), and the backrest connecting part (6-1) is provided with a backrest connecting shaft (6-2). The two backrest connecting shafts (6-2) can be rotatably limited in the two shaft connecting grooves (13-2).

3. The child safety seat with a foldable backrest according to claim 2, characterized in that, Two slots (13-3) are respectively set on the outer side walls of the two shaft connecting slots (13-2), and two pin telescopic ports (6-4) are respectively set below the two backrest connecting shafts (6-2).

4. The child safety seat with a foldable backrest according to claim 1, characterized in that, There are two elastic elements, each located below one of the two lock heads (7-1).

5. The child safety seat with a foldable backrest according to claim 4, characterized in that, The elastic element is a locking spring (8). The upper ends of the two locking springs (8) are connected to the base cover (6), and the lower ends of the two locking springs (8) are connected to the backrest latch (7) located below the two lock heads (7-1).

6. The child safety seat with a foldable backrest according to claim 5, characterized in that, The backrest latch (7) has a spring connecting part (7-3) below each of the two lock heads (7-1). The spring connecting part (7-3) is a ring structure or a connecting hole, which is used to hook the lower end of the latch spring (8).

7. The child safety seat with a foldable backrest according to claim 5, characterized in that, The base cover (6) is provided with spring mounting grooves (6-3) below the backrest connection part (6-1). The spring mounting grooves (6-3) are provided with connecting holes for attaching the upper end of the locking spring (8).

8. The child safety seat with a foldable backrest according to claim 3, characterized in that, Limiting guide surfaces (13-4) are provided on the outer side wall of the shaft connecting groove (13-2). The limiting guide surfaces (13-4) are adjacent to the slots (13-3). After the two lock heads (7-1) exit the corresponding slots (13-3), they can slide along the two limiting guide surfaces (13-4) respectively.

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