Height adjustment structure of a child walker

Abstract

This utility model relates to the field of children's walker technology, specifically a height-adjustable structure for a children's walker. It includes a base frame and a railing positioned above the base frame. Hollow sleeves are fixedly connected to both sides of the base frame, and solid sliding rods that fit into the inner walls of the hollow sleeves are fixedly connected to both sides of the railing. The solid sliding rods are slidably disposed within the hollow sleeves. A sliding groove is fixedly connected to the rear side of the base frame, and a ratchet rack is slidably connected inside the sliding groove. The top of the ratchet rack is fixedly connected to the railing. This utility model allows the railing to move upwards simply by pulling it up, and downwards by pushing the ratchet outwards and pressing down on the railing. This allows for flexible height adjustment to accommodate children of different heights, and automatically maintains the railing at the adjusted height without requiring additional locking mechanisms. The adjustment process is more convenient, faster, and easier to operate.

Description

Technical Field

[0001] This utility model relates to the field of children's walker technology, and more specifically, to a height-adjustable structure for a children's walker. Background Technology

[0002] Baby walkers are assistive tools for babies learning to walk. Through the support of the bottom wheels and the design of the seat, they help babies move around before they have fully mastered the ability to walk.

[0003] Some existing baby walkers have adjustable railing heights to accommodate children of different heights. However, the existing height adjustment mechanisms require a separate locking mechanism, which is cumbersome and makes it difficult to quickly adjust the railing height during use. Utility Model Content

[0004] This utility model provides a height adjustment structure for children's walkers, which solves the technical problem that the height adjustment mechanism of existing children's walkers still requires the operation of a separate locking structure, which is cumbersome.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A height-adjustable structure for a children's walker includes a base frame and a railing positioned above the base frame. Hollow sleeves are fixedly connected to both sides of the base frame, and solid sliding rods that fit into the inner walls of the hollow sleeves are fixedly connected to both sides of the railing. The solid sliding rods are slidably disposed within the hollow sleeves. A sliding groove is fixedly connected to the rear side of the base frame, and a ratchet rack is slidably connected inside the sliding groove. The top end of the ratchet rack is fixedly connected to the railing. A connecting seat is provided at the top end of the sliding groove, and a rotating shaft is rotatably connected to the connecting seat. A set of pawls is connected to the rotating shaft, and a torsion spring is sleeved on the surface of the rotating shaft. The two ends of the torsion spring respectively abut against the pawls and the connecting seat.

[0007] Furthermore, both ends of the rotating shaft extend outward from the outer side of the connecting seat and are fixedly connected with paddles, the surface of which is provided with anti-slip texture.

[0008] Furthermore, the hollow sleeve and the solid slide rod are made of stainless steel, and the inner wall of the hollow sleeve and the outer wall of the solid slide rod both have rounded corners.

[0009] Furthermore, a through slit is provided on the outer wall of the hollow sleeve, and a protrusion is fixedly connected to the bottom of the solid slide rod. The protrusion extends through the through slit to the outside of the hollow sleeve.

[0010] Furthermore, the surface of the hollow sleeve is distributed with scale lines, and the end of the protrusion is provided with a pointer pointing to the scale lines.

[0011] Furthermore, the fence is fixedly connected with handles, which are symmetrically distributed in two sets on both sides of the fence.

[0012] Compared with the prior art, the advantages of this utility model are: the fence can be moved upwards simply by pulling it upwards, and the fence can be moved downwards by the user pushing the pawl outwards and pressing down on the fence. This allows the height of the fence to be flexibly adjusted to meet the needs of children of different heights, and the fence can be automatically kept at the adjusted height without the need for additional operation of the locking structure. The adjustment process is more convenient, quick and easy to operate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 This is a schematic diagram of the structure of the fence and solid sliding bar in this utility model;

[0017] Figure 4 This is a schematic diagram of the ratchet rack and pawl in this utility model.

[0018] In the diagram: 1. Base frame; 2. Fence; 3. Hollow sleeve; 4. Solid slide bar; 5. Slide groove; 6. Ratchet; 7. Connecting seat; 8. Shaft; 9. Pawl; 10. Torsion spring; 11. Paddle; 12. Anti-slip texture; 13. Through seam; 14. Protrusion; 15. Scale line; 16. Pointer; 17. Grip. Detailed Implementation

[0019] 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 with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-4 A height-adjustable structure for a child walker includes a base frame 1 and a railing 2 positioned above the base frame 1. The base frame 1 has wheels at its bottom. When a toddler is placed inside the railing 2, the toddler can walk by supporting their body around the railing 2 and coordinating with the rotation of the wheels at the bottom of the base frame 1. Hollow sleeves 3 are fixedly connected to both sides of the base frame 1. Solid sliding rods 4, which fit into the inner walls of the hollow sleeves 3, are fixedly connected to both sides of the railing 2. The solid sliding rods 4 extend downwards into the hollow sleeves 3 and can slide up and down inside the hollow sleeves 3. The hollow sleeves 3 and solid sliding rods 4 connect the base frame 1 and the railing 2 together, and the height of the railing 2 can be adjusted by moving it up and down. A sliding groove 5 is also fixedly connected to the rear side of the base frame 1, and the interior of the sliding groove 5 is slidably connected to... There is a ratchet 6, the top of which is fixedly connected to the fence 2. When the fence 2 slides up and down, it will drive the ratchet 6 to slide up and down along the inside of the slide groove 5. The top of the slide groove 5 is provided with a connecting seat 7, and a rotating shaft 8 is rotatably connected to the connecting seat 7. A set of pawls 9 is connected to the rotating shaft 8. When the pawls 9 rotate upward, they can fit against the teeth on the front of the ratchet 6. At this time, the pawls 9 can restrict the ratchet 6 from sliding downward, but will not restrict the ratchet 6 from sliding upward. A torsion spring 10 is sleeved on the surface of the rotating shaft 8. The two ends of the torsion spring 10 abut against the pawls 9 and the connecting seat 7 respectively. The elastic force generated by the torsion spring 10 can make the pawls 9 always receive an upward rotational force, so that the pawls 9 can always keep in contact with the teeth on the front of the ratchet 6.

[0022] The hollow sleeve 3 and solid sliding rod 4 connect the base frame 1 and the fence 2. Since the solid sliding rod 4 slides along the inside of the hollow sleeve 3, it guides the fence 2 during its up-and-down movement, ensuring the fence 2 remains aligned with the base frame 1. When adjusting the height of the fence 2, the user simply pulls it upwards. The ratchet 6 slides within the groove 5, driven by the fence 2. The pawl 9, which rests against the front of the ratchet 6, does not restrict its upward movement, allowing the fence 2 to be pulled to the desired height. After adjustment, when a child supports themselves on the fence 2, it experiences downward pressure. The pawl 9, again resting against the front of the ratchet 6, restricts its downward movement, ensuring the fence 2 remains at the adjusted height and provides stable support for the child. When the user rotates the pawl 9 outwards, the pawl 9 rotates downwards and moves away from the ratchet 6. At this time, the ratchet 6 is no longer restricted by the pawl 9 when sliding down. The user can press the fence 2 to make it slide down. When the fence 2 is adjusted to the desired height, releasing the pawl 9 allows it to rotate upwards and reset under the elastic force of the torsion spring 10, and then contact the front of the ratchet 6 again. At this time, the pawl 9 will restrict the ratchet 6 from sliding down, so that the fence 2 can be kept at the adjusted height. In summary, this mechanism can control the fence 2 to move upwards simply by pulling it upwards, and the fence 2 can be moved downwards by the user rotating the pawl 9 outwards and pressing the fence 2 downwards. This allows the height of the fence 2 to be flexibly adjusted to meet the needs of children of different heights, and can automatically keep the fence 2 at the adjusted height without the need for additional operation of the locking mechanism. The adjustment process is more convenient, faster, and easier to operate.

[0023] For further details, please refer to Figure 4 The two ends of the rotating shaft 8 extend out of the connecting seat 7 and are fixedly connected to the paddle 11. The surface of the paddle 11 is provided with anti-slip texture 12. The paddle 11 has a flat structure and extends out of the connecting seat 7 on one side, so it is easy for the user to hold with their fingers. When the user moves the paddle 11, the rotating shaft 8 can be controlled to drive the pawl 9 to rotate, thereby improving the ease of use. The anti-slip texture 12 can increase the frictional resistance between the fingers and the surface of the paddle 11, and prevent the hand from slipping during the process of moving the paddle 11.

[0024] For further details, please refer to Figure 1The hollow sleeve 3 and the solid sliding rod 4 are made of stainless steel, which has high strength and can provide stable support for the fence 2. The smooth surface allows the solid sliding rod 4 and the hollow sleeve 3 to slide smoothly together. The inner wall of the hollow sleeve 3 and the outer wall of the solid sliding rod 4 are both rounded, which improves the fit between the hollow sleeve 3 and the solid sliding rod 4, so that there are no gaps between them, thus preventing the fence 2 from shaking during use, and further ensuring the smooth sliding between the hollow sleeve 3 and the solid sliding rod 4.

[0025] For further details, please refer to Figure 1 and Figure 2 A through slit 13 is provided on the outer wall of the hollow sleeve 3. A protrusion 14 is fixedly connected to the bottom of the solid slide rod 4. The protrusion 14 extends to the outside of the hollow sleeve 3 through the through slit 13. When the solid slide rod 4 slides inside the hollow sleeve 3, the protrusion 14 will always remain inside the through slit 13. At this time, the through slit 13 and the protrusion 14 can limit the upward sliding stroke of the solid slide rod 4, which can effectively prevent the solid slide rod 4 from falling off due to sliding out to the top of the hollow sleeve 3. In addition, scale lines 15 are distributed on the surface of the hollow sleeve 3. A pointer 16 is provided at the end of the protrusion 14 to point to the scale lines 15. When adjusting the height of the fence 2, the reading of the scale line 15 pointed to by the pointer 16 can help the user accurately grasp the adjustment distance, further improving the convenience of use.

[0026] For further details, please refer to Figure 1 and Figure 3 A handle 17 is fixedly connected to the fence 2. The handles 17 are symmetrically distributed in two sets on both sides of the fence 2, which makes it easy for users to hold the handles 17 and lift the fence 2 upward.

[0027] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A height-adjustable structure for a children's walker, comprising a base frame (1) and a railing (2) disposed above the base frame (1), characterized in that, Hollow sleeves (3) are fixedly connected to both sides of the base frame (1). Solid slide rods (4) that fit into the inner wall of the hollow sleeves (3) are fixedly connected to both sides of the fence (2). The solid slide rods (4) are slidably disposed in the hollow sleeves (3). A slide groove (5) is fixedly connected to the rear side of the base frame (1). A ratchet rack (6) is slidably connected inside the slide groove (5). The top end of the ratchet rack (6) is fixedly connected to the fence (2). A connecting seat (7) is provided at the top end of the slide groove (5). A rotating shaft (8) is rotatably connected to the connecting seat (7). A set of pawls (9) is connected to the rotating shaft (8). A torsion spring (10) is sleeved on the surface of the rotating shaft (8). The two ends of the torsion spring (10) respectively abut against the pawls (9) and the connecting seat (7).

2. The height adjustment structure for a baby walker according to claim 1, characterized in that, The two ends of the rotating shaft (8) extend out of the outside of the connecting seat (7) and are fixedly connected to the paddle (11), and the surface of the paddle (11) is provided with anti-slip texture (12).

3. The height adjustment structure for a baby walker according to claim 1, characterized in that, The hollow sleeve (3) and the solid slide rod (4) are made of stainless steel, and the inner wall of the hollow sleeve (3) and the outer wall of the solid slide rod (4) are both rounded.

4. The height adjustment structure for a baby walker according to claim 1, characterized in that, A through slit (13) is provided on the outer wall of the hollow sleeve (3), and a protrusion (14) is fixedly connected to the bottom of the solid slide rod (4). The protrusion (14) extends out to the outside of the hollow sleeve (3) through the through slit (13).

5. The height adjustment structure for a baby walker according to claim 4, characterized in that, The surface of the hollow sleeve (3) is distributed with scale lines (15), and the end of the protrusion (14) is provided with a pointer (16) pointing to the scale lines (15).

6. The height adjustment structure for a baby walker according to claim 1, characterized in that, A handle (17) is fixedly connected to the fence (2), and the handle (17) is symmetrically distributed in two groups on both sides of the fence (2).

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