An adjustable backrest and headrest stroller for children

Abstract

This utility model relates to the field of children's stroller technology and discloses a children's stroller with an adjustable backrest and headrest. It includes a base, a back support hinged to one end of the base, a protective frame hinged to the end of the base near the back support, a backrest and headrest assembly in front of the back support, and an adjustment groove on the side of the back support away from the backrest and headrest assembly. An adjustment component for adjusting the backrest and headrest assembly is provided within the adjustment groove. The adjustment component includes a fixed seat, which is fixedly installed on the side of the backrest and headrest assembly near the back support. A sliding groove is provided on the side of the fixed seat away from the backrest and headrest assembly, and symmetrically arranged inserts are provided within the sliding groove. The outer end of each insert is inserted into a slot symmetrically opened in the inner wall of the adjustment groove, and there are several slots. This utility model achieves height adjustment of the backrest and headrest assembly through the adjustment component. Combined with the guiding and limiting functions of the guide seat and guide block, the limiting groove and the limiting block, and the side panel angle adjustment, it adapts to the needs of different children and expands its applicability.

Description

Technical Field

[0001] This utility model relates to the field of children's stroller technology, and in particular to a children's stroller with an adjustable backrest and headrest. Background Technology

[0002] In modern parenting, strollers are an important tool for taking children out, and their comfort and functionality are receiving increasing attention from parents. A well-designed stroller can not only provide children with a comfortable riding experience, but also greatly reduce the burden on parents. The backrest and headrest of the stroller, as key components that come into direct contact with the child's body and provide support, play a decisive role in the child's riding experience due to their rationality and adaptability.

[0003] However, traditional strollers have significant limitations in their backrest and headrest design. Most traditional strollers have fixed headrest positions, making it impossible to adjust them according to a child's growth or age. When a child is tall, a fixed headrest may not provide sufficient head support, leaving the head unsupported and causing fatigue during prolonged use. Conversely, if a child is short, an overly high headrest not only fails to provide effective protection but may also affect the child's posture due to improper positioning, potentially posing a safety hazard while the stroller is in motion. This inflexible design severely impacts the stroller's ease of use and the child's comfort, failing to meet parents' increasingly diverse and sophisticated demands for strollers. Utility Model Content

[0004] Given that the backrest and headrest of existing traditional children's strollers are fixed in position and cannot be adjusted according to the height and age of children, which affects the convenience of use and the comfort of riding, and even poses safety hazards, making it difficult to meet diverse and refined needs, this utility model is proposed.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a children's stroller with an adjustable backrest and headrest, including a base, a back support hinged to one end of the base, a protective frame hinged to one end of the base near the back support, a backrest and headrest assembly provided in front of the back support, an adjustment groove provided on the side of the back support away from the backrest and headrest assembly, and an adjustment component for adjusting the backrest and headrest assembly provided in the adjustment groove.

[0006] The adjustment component includes a fixed base, which is fixedly installed on the side of the backrest headrest assembly near the back support. The fixed base has a sliding groove on the side away from the backrest headrest assembly. Insert blocks are symmetrically arranged in the sliding groove. The outer end of each insert block is inserted into a slot symmetrically opened in the inner wall of the adjustment groove. There are several slots.

[0007] As a preferred embodiment, the adjustment assembly further includes an end cap, which is detachably installed on the end of the fixed seat away from the backrest headrest assembly. A first drive plate and a second drive plate are distributed front-to-back within the fixed seat and the end cap, with their outer ends extending to the outer side of the fixed seat and end cap assembly, respectively. A drive groove is formed on one side of each of the first and second drive plates, and the drive grooves on their sidewalls are inverted. Drive blocks are symmetrically arranged within the drive grooves, and two drive blocks are fixedly connected to one end of an insert block. An mounting groove is symmetrically formed on the inner side of each insert block, and the two insert blocks are connected by a spring located within the mounting groove.

[0008] As a preferred embodiment, the fixing base is symmetrically provided with two sets of fixing blocks arranged symmetrically on the left and right sides near the end cover, and the two sets of fixing blocks are located on both sides of the slide groove, and the drive plate one and drive plate two are located between the left and right fixing blocks.

[0009] As a preferred embodiment, positioning posts are fixedly installed on opposite inner walls of the mounting groove, the spring is sleeved on the outside of the positioning posts, and the drive block is semi-circular at one end relative to the outside.

[0010] As a preferred embodiment, the back support is symmetrically provided with guide seats on the side near the backrest headrest assembly, and the guide seats are inverted U-shaped. Two guide blocks are slidably installed on the inner side of the guide seats, and the guide blocks are fixedly connected to the backrest headrest assembly. The guide blocks are T-shaped, and several through holes are opened on the back of the back support.

[0011] As a preferred embodiment, the backrest and headrest assembly includes a backrest, a headrest portion fixedly connected to the upper end of the backrest, side plates hinged to both sides of the headrest portion, the backrest being fixedly connected to a guide block, and the backrest being fixedly connected to a back support.

[0012] As a preferred embodiment, the backrest headrest assembly is provided with symmetrical limiting blocks on the outer side, and the inner wall of the back support is provided with symmetrical limiting grooves, with one end of the limiting block located in the limiting groove relative to the outer side.

[0013] As a preferred embodiment, connecting blocks are fixedly installed at symmetrical positions on both sides of the back support. An adjusting rod and a fixing rod connected to the connecting blocks are provided on the outer side of the upper end of the back support, and the two ends of the adjusting rod are respectively hinged to the connecting blocks. A bracket is hinged to the end of the base away from the back support.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] 1. This utility model, through the adjustment component, allows the drive plate one and drive plate two to move inwards in sync, thereby cooperating with the drive slot to squeeze the drive block, which in turn moves the insert block inwards and squeezes the spring, causing the insert block to move out of the slot. Then, dragging the fixed base allows the connected backrest and headrest assembly to slide up and down. After adjusting its height, releasing the force applied to drive plate one and drive plate two allows the insert block to be inserted into the slot under the elastic force of the spring, thus completing the limiting position. This adapts to the different needs of children and expands the scope of application.

[0016] 2. This utility model can guide and limit the backrest headrest assembly by using guide seats and guide blocks; the headrest part structure, which is formed by hinged side plates and headrest, allows the angle and position of the two side plates to be adjusted as needed, so as to better support and limit the child's head.

[0017] 3. This utility model uses a limiting groove and a limiting block to limit and guide the backrest headrest assembly, ensuring more stable adjustment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0020] Figure 3 This is a structural schematic diagram of the backrest headrest assembly of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0022] Figure 5 For the present utility model Figure 4 Schematic diagram of the structure without the end caps;

[0023] Figure 6 This is a schematic diagram of the structure between the fixing base and the insert block of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Base; 2. Backrest support; 3. Backrest and headrest assembly; 4. Limiting block; 5. Limiting groove; 6. Protective frame; 7. Bracket; 8. Connecting block; 9. Adjusting rod; 10. Fixing rod; 11. Guide seat; 12. Adjusting groove; 13. Adjusting component; 14. Slot; 15. Guide block; 16. Backrest; 17. Headrest part; 18. Side plate; 19. Fixing seat; 20. End cap; 21. Slide groove; 22. Insert block; 23. Drive block; 24. Mounting groove; 25. Positioning post; 26. Spring; 27. Fixing block; 28. Drive plate one; 29. ​​Drive plate two; 30. Drive groove; 31. Through hole. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Reference Figure 1 - Figure 6 As shown, an adjustable backrest headrest children's stroller is provided, including a base 1, a back support 2 hinged to one end of the base 1, a protective frame 6 hinged to the end of the base 1 near the back support 2, a backrest headrest assembly 3 provided in front of the back support 2, and an adjustment groove 12 provided on the side of the back support 2 away from the backrest headrest assembly 3. An adjustment component 13 for adjusting the backrest headrest assembly 3 is provided in the adjustment groove 12. By setting the adjustment groove 12 and the adjustment component 13, a structural basis is provided for the height adjustment of the backrest headrest assembly 3, which can be flexibly adjusted to fit different children and solve the problem of fixed backrest headrest in traditional strollers.

[0028] The adjustment component 13 includes a fixing base 19, which is fixedly installed on the side of the backrest headrest assembly 3 near the back support 2. A sliding groove 21 is provided on the side of the fixing base 19 away from the backrest headrest assembly 3. Insert blocks 22 are symmetrically arranged in the sliding groove 21. The outer end of the insert block 22 is inserted into the slots 14 symmetrically opened on the inner wall of the adjustment groove 12. There are several slots 14. Through the cooperation of the insert block 22 and the multiple slots 14, the backrest headrest assembly 3 can be positioned at different heights. Combined with the operation of the adjustment component 13, it can meet diverse usage needs and improve applicability.

[0029] In this example, the adjustment assembly 13 also includes an end cap 20, which is detachably installed on the end of the fixed base 19 away from the backrest headrest assembly 3. A drive plate 28 and a drive plate 29 are distributed front-to-back within the fixed base 19 and the end cap 20, respectively. The outer ends of the drive plates 28 and 29 extend to the outer side of the combined structure of the fixed base 19 and the end cap 20. Drive grooves 30 are respectively formed on one side of the drive plates 28 and 29, and the drive grooves 30 on the sidewalls of the drive plates 28 and 29 are inverted relative to each other. The moving groove 30 is symmetrically provided with driving blocks 23, and the two driving blocks 23 are fixedly connected to one end of the insert block 22 respectively. The insert block 22 is symmetrically provided with mounting grooves 24 on one side of its inner side. The two insert blocks 22 are connected by springs 26, and the springs 26 are located in the mounting grooves 24. Through the cooperation of the first driving plate 28, the second driving plate 29, the driving groove 30, and the driving blocks 23, combined with the elastic force of the springs 26, the insert block 22 can be quickly extended and retracted. The operation is convenient and can efficiently complete the height adjustment and fixation of the backrest headrest assembly 3, improving the convenience of use.

[0030] In this example, the fixed base 19 is symmetrically provided with two sets of left and right symmetrically arranged fixing blocks 27 on the side near the end cover 20, and the two sets of fixing blocks 27 are respectively located on both sides of the slide groove 21. The first drive plate 28 and the second drive plate 29 are located between the left and right fixing blocks 27. The fixing blocks 27 limit the movement of the first drive plate 28 and the second drive plate 29, ensuring their stable movement, guaranteeing the reliability of the operation of the adjustment component 13, and avoiding component displacement from affecting the adjustment effect.

[0031] In this example, positioning posts 25 are fixedly installed on the inner walls of the mounting groove 24, and springs 26 are sleeved on the outer side of the positioning posts 25. The drive block 23 is semi-circular at one end relative to the outer side. The positioning posts 25 prevent the springs 26 from being misaligned, and the semi-circular drive block 23 reduces motion friction, ensuring that the adjustment component 13 operates flexibly and smoothly and extending its service life.

[0032] In this example, the back support 2 is symmetrically provided with guide seats 11 on the side near the backrest headrest assembly 3. The guide seats 11 are inverted U-shaped. Two guide blocks 15 are slidably installed on the inner side of the guide seats 11. The guide blocks 15 are fixedly connected to the backrest 16 and the backrest headrest assembly 3. The guide blocks 15 are T-shaped. Several through holes 31 are opened on the back of the back support 2. The guide seats 11 and the guide blocks 15 cooperate to achieve guiding and limiting, ensuring the stability of the backrest headrest assembly 3 adjustment. The through holes 31 reduce weight and facilitate heat dissipation, improving overall practicality.

[0033] In this example, the backrest and headrest assembly 3 includes a backrest 16, a headrest portion 17 fixedly connected to the upper end of the backrest 16, and side plates 18 hinged to both sides of the headrest portion 17. The backrest 16 is fixedly connected to the guide block 15 and the backrest 16 is fixedly connected to the back support 2. The side plates 18 can be adjusted in angle to enhance the support and restraint of the child's head, and the guide structure enhances the stability and comfort of the backrest and headrest assembly 3.

[0034] In this example, the backrest headrest assembly 3 is symmetrically provided with limiting blocks 4 on the outer side, and the back support 2 is symmetrically provided with limiting grooves 5 on the inner wall. The outer end of the limiting block 4 is located in the limiting groove 5. The limiting block 4 and the limiting groove 5 cooperate to further limit and guide the backrest headrest assembly 3, ensuring that its adjustment process is stable and does not shake, thus improving the safety of use.

[0035] In this example, connecting blocks 8 are fixedly installed at symmetrical positions on both sides of the back support 2. An adjusting rod 9 and a fixing rod 10 connected to the connecting blocks 8 are provided on the outer side of the upper end of the back support 2. The two ends of the adjusting rod 9 are respectively hinged to the connecting blocks 8. A bracket 7 is hinged to the end of the base 1 away from the back support 2. In this example, the hinges between the base 1 and the protective frame 6 and the bracket 7, and the hinges between the adjusting rod 9 and the connecting blocks 8 are all connected by damping hinges. The adjusting rod 9 can adjust the angle of the back support 2, and the bracket 7 provides additional support, enriching the functions of the trolley and improving the flexibility and comfort of use.

[0036] The working principle of this utility model is as follows: When it is necessary to adjust the height of the backrest headrest assembly 3, the user presses the drive plate 1 28 and drive plate 29 simultaneously to move them to the opposite inward side. At this time, the drive grooves 30 on the drive plate 1 28 and drive plate 29 will squeeze the drive block 23, causing the two insert blocks 22 to overcome the elastic force of the spring 26 and retract to the opposite inward side, so that the insert blocks 22 can be dislodged from the slot 14 in the adjustment groove 12, thus releasing the restriction on the backrest headrest assembly 3.

[0037] After the insert 22 is dislodged, the user can push the backrest headrest assembly 3 to slide up and down along the adjustment groove 12. During this process, the backrest headrest assembly 3 slides in the guide seat 11 through the guide block 15 and slides in the limit groove 5 through the limit block 4, so as to achieve stable guidance and avoid deviation or shaking during the adjustment process.

[0038] After the backrest headrest assembly 3 is adjusted to the target height, the user releases the drive plate 1 28 and drive plate 29. The spring 26 pushes the two inserts 22 to reset to the opposite side under the action of elasticity, and re-inserts them into the slots 14 of the corresponding height to complete the fixation of the backrest headrest assembly 3 and realize the height adjustment.

[0039] In addition, the side panels 18 on both sides of the headrest 17 can be adjusted in angle through a hinge structure to provide targeted lateral support according to the size of the child's head and improve riding safety; the back support 2 can be adjusted in tilt angle through the cooperation of the adjustment rod 9 and the connecting block 8, and the bracket 7 can be flipped and adjusted to further adapt to different usage needs of children.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A child's pushchair having an adjustable backrest headrest comprising a chassis (1) characterised in that: The base (1) is hinged to a back support (2) at one end, and a protective frame (6) is hinged to the end of the base (1) near the back support (2). A backrest headrest assembly (3) is provided in front of the back support (2). An adjustment groove (12) is provided on the side of the back support (2) away from the backrest headrest assembly (3). An adjustment component (13) for adjusting the backrest headrest assembly (3) is provided in the adjustment groove (12). The adjustment component (13) includes a fixed seat (19), and the fixed seat (19) is fixedly installed on the side of the backrest headrest component (3) near the back support (2). The fixed seat (19) has a sliding groove (21) on the side away from the backrest headrest component (3). Inserts (22) are symmetrically arranged in the sliding groove (21). The outer end of the inserts (22) is inserted into the slots (14) symmetrically opened on the inner wall of the adjustment groove (12), and there are several slots (14).

2. A child's buggy having an adjustable backrest headrest according to claim 1, characterised in that: The adjustment assembly (13) also includes an end cap (20), which is detachably installed on the end of the fixed base (19) away from the backrest headrest assembly (3). A first drive plate (28) and a second drive plate (29) are arranged front-to-back within the fixed base (19) and the end cap (20), respectively. The outer ends of the first drive plate (28) and the second drive plate (29) extend to the outer side of the combined structure of the fixed base (19) and the end cap (20). The first drive plate (28) and the second drive plate (29) are located on one side of... Drive slots (30) are provided on the side walls of drive plate 1 (28) and drive plate 2 (29), and the drive slots (30) are reversed. Drive blocks (23) are symmetrically provided in the drive slots (30), and the two drive blocks (23) are fixedly connected to one end of the plug (22). The plug (22) is symmetrically provided with mounting slots (24) on one side relative to the inner side. The two plugs (22) are connected by springs (26), and the springs (26) are located in the mounting slots (24).

3. A child stroller with an adjustable backrest and headrest according to claim 2, characterized in that: The fixed base (19) is symmetrically provided with two sets of left and right symmetrically arranged fixing blocks (27) on the side near the end cover (20), and the two sets of fixing blocks (27) are located on both sides of the slide groove (21), and the drive plate one (28) and drive plate two (29) are located between the left and right fixing blocks (27).

4. A child stroller with an adjustable backrest and headrest according to claim 3, characterized in that: Positioning posts (25) are fixedly installed on the inner wall of the mounting groove (24), the spring (26) is sleeved on the outside of the positioning post (25), and the drive block (23) is semi-circular on one side relative to the outside.

5. A child stroller with an adjustable backrest and headrest according to claim 4, characterized in that: The back support (2) is symmetrically provided with guide seats (11) on the side near the backrest headrest assembly (3), and the guide seats (11) are inverted U-shaped. Two guide blocks (15) are slidably installed on the inner side of the guide seats (11), and the guide blocks (15) are fixedly connected to the backrest (16) and the backrest headrest assembly (3). The guide blocks (15) are T-shaped, and several through holes (31) are opened on the back of the back support (2).

6. A child stroller with an adjustable backrest and headrest according to claim 2, characterized in that: The backrest headrest assembly (3) includes a backrest (16), a headrest (17) is fixedly connected to the upper end of the backrest (16), and side plates (18) are hinged to both sides of the headrest (17). The backrest (16) is fixedly connected to the guide block (15), and the backrest (16) is fixedly connected to the back support (2).

7. A child stroller with an adjustable backrest and headrest according to claim 2, characterized in that: The backrest headrest assembly (3) has symmetrically provided limiting blocks (4) on its outer side, and the back support (2) has symmetrically provided limiting grooves (5) on its inner wall, with one end of the limiting block (4) located in the limiting groove (5) on its outer side.

8. A child stroller with an adjustable backrest and headrest according to claim 2, characterized in that: The back support (2) is fixedly installed with connecting blocks (8) at symmetrical positions on both sides. The upper outer side of the back support (2) is provided with an adjusting rod (9) and a fixing rod (10) connected to the connecting block (8). The two ends of the adjusting rod (9) are respectively hinged to the connecting block (8). The base (1) is hinged to a bracket (7) at the end away from the back support (2).

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