Height-adjustable lifting ladder for children

Abstract

The utility model relates to the technical field of children tools, in particular to a height-adjustable lifting ladder for children, which comprises a base and a lifting ladder arranged on the base, and a stepless adjusting structure capable of enabling the lifting ladder to be adjusted in a lifting mode is arranged between the base and the lifting ladder. The stepless adjusting structure comprises an adjusting nut arranged on one of the base and the lifting step and an adjusting bolt arranged on the other one of the base and the lifting step, one of the base and the lifting step is provided with a containing hole groove structure used for containing the adjusting nut and provided with an avoiding hole groove structure used for allowing the adjusting bolt to enter, and the other one of the base and the lifting step is fixedly connected with the adjusting bolt. According to the height-adjustable lifting ladder for the children, the stepless adjusting structure is arranged, the height of the ladder can be adjusted in a stepless mode, or the height can be adjusted finely so that the height-adjustable lifting ladder can adapt to various activity scenes and adapt to the heights of the children, in the operation process, the ladder can ascend and descend only by rotating the adjusting nut, and operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of children's utensils, and particularly relates to an adjustable-height lifting ladder for children. Background Art

[0002] During the growth process of children, they are full of curiosity about the surrounding world and constantly explore and try new things. However, due to the limited height of children, it is difficult to reach high items or complete specific activities in many scenarios.

[0003] Currently, ladders have emerged on the market to solve this problem. However, the existing ladders can only be adjusted to specific heights during adjustment. In some cases, it is difficult to adjust to a suitable height according to the child's height, and the height adjustment is not convenient enough to meet the needs of children in specific places. Therefore, it is necessary to design an adjustable and steplessly adjustable lifting ladder. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides an adjustable-height lifting ladder for children.

[0005] The utility model adopts the following technical solutions

[0006] An adjustable-height ladder for children, comprising a base and a lifting ladder arranged on the base. A stepless adjustment structure for lifting and adjusting the lifting ladder is arranged between the base and the lifting ladder. The stepless adjustment structure includes an adjusting nut arranged on one of the base and the lifting ladder and an adjusting bolt arranged on the other. One of the base and the lifting ladder is provided with a placement hole groove structure for placing the adjusting nut and an avoidance hole groove structure for allowing the adjusting bolt to enter, and the other is fixedly connected to the adjusting bolt.

[0007] Optionally, the adjusting bolt is provided with a fixing part, and the lifting ladder is provided with a fixing hole for accommodating the fixing part. After the fixing part is placed in the fixing hole, it is connected to the lifting ladder by screws.

[0008] Optionally, it further includes an extension rod arranged on the lifting ladder. The extension rod is provided with an installation part, and the fixing part is provided with an installation groove for accommodating the installation part. After the installation part is placed in the installation groove, the installation part, the fixing part and the base are connected by the same screw.

[0009] Optionally, it further includes an extension rod arranged on the lifting ladder. The extension rod is provided with an installation part, and the installation part is provided with an installation groove for accommodating the fixing part. After the installation part is placed in the fixing hole and the fixing part is placed in the installation groove, the installation part, the fixing part and the base are connected by the same screw.

[0010] Optionally, the height of the placement hole groove structure is adapted to the height of the adjusting nut, so that the upper and lower end faces of the adjusting nut are in contact with the upper and lower surfaces of the placement hole groove structure.

[0011] Optionally, the adjusting bolt is provided with a guiding portion, and the base is provided with a guiding groove that cooperates with the guiding portion.

[0012] Optionally, the base is provided with a plurality of scale markings for indicating the adjusted height, and the lifting ladder is provided with an indicating position for indicating the scale markings. When the lifting ladder is adjusted to a fixed height, the indicating position is aligned with the scale markings to display the height of the lifting ladder. The scale markings are horizontal protrusions provided on the base, and the indicating position is the bottom edge of the lifting ladder.

[0013] Optionally, it further includes a first-level ladder. The base is provided on the first-level ladder. The first-level ladder and the base are connected by snap connection or screw connection or integrally formed. The first-level ladder is provided with snap protrusions for snap connection, and the base is provided with snap holes that cooperate with the snap protrusions.

[0014] Optionally, the extension rod is provided with a toilet device.

[0015] Optionally, the toilet device includes a support frame and a seat ring provided on the support frame.

[0016] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:

[0017] Adopting the above technical solution, by providing a stepless adjustment structure, the height of the ladder can be adjusted steplessly, and fine height adjustment can be obtained to adapt to a variety of activity scenarios and the height of children. Moreover, during operation, only by rotating the adjusting nut can the ladder be lifted or lowered, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall view of the present utility model;

[0019] Figure 2 is the exploded view of the present utility model;

[0020] Figure 3 is the cross-sectional view of the present utility model;

[0021] Figure 4 is the partial enlarged view of the present utility model.

[0022] Explanation of the reference numerals in the schematic diagram: 1. Base; 11. Placing hole groove structure; 12. Avoiding hole groove structure; 13. Guiding groove; 14. Scale marking; 2. Lifting ladder; 21. Fixing hole; 22. Indicating position; 3. Stepless adjustment structure; 31. Adjusting nut; 32. Adjusting bolt; 321. Fixing portion; 3211. Installation groove; 322. Guiding portion; 4. Extension rod; 41. Installation portion; 5. First-level ladder; 6. Toilet device; 61. Support frame; 62. Seat ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To further understand the content of the present utility model, the present invention will be described in detail with reference to the appended Figures 1-4 drawings and embodiments.

[0024] With reference to the appended Figures 1-4 drawings, a kind of ladder with adjustable height for children in this embodiment includes a base 1 and a lifting ladder 2 arranged on the base 1, and a stepless adjustment structure 3 for lifting and adjusting the lifting ladder 2 is arranged between the base 1 and the lifting ladder 2.

[0025] In this embodiment, the stepless adjustment structure 3 includes an adjusting nut 31 arranged on the base 1 and an adjusting bolt 32 arranged on the lifting ladder 2. The base 1 is provided with a placement hole groove structure 11 for placing the adjusting nut 31 and an avoidance hole groove structure 12 for the adjusting bolt 32 to enter, and the lifting ladder 2 is fixedly connected to the adjusting bolt 32. In other embodiments, not shown in the figure, the adjusting nut 31 can be arranged on the lifting ladder 2, the adjusting bolt 32 is arranged on the base 1, the placement hole groove structure 11 and the avoidance hole groove structure 12 are arranged on the lifting ladder 2, and the base 1 is fixedly connected to the adjusting bolt 32. The height of the lifting ladder 2 can be adjusted steplessly in both of the above two ways. Taking the adjusting nut 31 arranged on the base 1 and the adjusting bolt 32 arranged on the lifting ladder 2 as an example for illustration, the other embodiment will not be elaborated.

[0026] In this embodiment, there are two bases 1, and stepless adjustment structures 3 are arranged between both ends of the lifting ladder 2 and the bases 1. The base 1 is provided with a placement hole groove structure 11 for placing the adjusting nut 31. In this embodiment, the height of the placement hole groove structure 11 is adapted to the height of the adjusting nut 31, so that the upper and lower end faces of the adjusting nut 31 are in contact with the upper and lower surfaces of the placement hole groove structure 11 to prevent the adjusting nut 31 from moving up and down. The base 1 is provided with an avoidance hole groove structure 12 for the adjusting bolt 32 to enter, and the avoidance hole groove structure 12 runs through the placement hole groove structure 11.

[0027] The lifting ladder 2 is fixedly connected to the adjusting bolt 32. The lifting ladder 2 is provided with an extension rod 4, the adjusting bolt 32 is provided with a fixing part 321, the lifting ladder 2 is provided with a fixing hole 21 for installing the fixing part 321, the extension rod 4 is provided with an installation part 41, the fixing part 321 is provided with an installation groove 3211 for accommodating the installation part 41. After the fixing part 321 is placed in the fixing hole 21 and the installation part 41 is placed in the installation groove 3211, the installation part 41, the fixing part 321 and the base 1 are connected by the same screw.

[0028] In other embodiments, not shown in the figure, the extension rod 4 is provided with an installation part 41, the installation part 41 is provided with an installation groove 3211 for accommodating the fixing part 321. During installation, the installation part 41 is placed in the fixing hole 21, then the fixing part 321 is placed in the installation groove 3211, and then the installation part 41, the fixing part 321 and the base 1 are connected by the same screw.

[0029] The adjusting bolt 32 is provided with a guiding portion 322, and the base 1 is provided with a guiding groove 13 that cooperates with the guiding portion 322 to ensure that the adjusting bolt 32 can only move linearly.

[0030] The base 1 is provided with a plurality of scale marks 14 for indicating the adjustment height, and the lifting ladder 2 is provided with an indicating position 22 for indicating the scale marks 14. When the lifting ladder 2 adjusts to a fixed height, the indicating position 22 is aligned with the scale marks 14 to display the height of the lifting ladder 2. In this embodiment, the scale marks 14 are horizontal protrusions provided on the base 1, and the indicating position 22 is the bottom edge of the lifting ladder 2. In other embodiments, the indicating position 22 can be an indicating arrow or an indicating line, etc. Scale marks 14 are provided on both bases 1 to adjust the same height according to the scale marks 14 on both sides to balance the lifting ladder 2.

[0031] A first-level ladder 5 is provided under the base 1, and the base 1 and the first-level ladder 5 are detachably or non-detachably connected. In this embodiment, the first-level ladder 5 and the base 1 are snap-connected. In other embodiments, the first-level ladder 5 and the base 1 are screw-connected or integrally formed. Specifically, the first-level ladder 5 is provided with a snap protrusion for snap connection, and the base 1 is provided with a card hole for cooperating with the snap protrusion. When connecting, the snap protrusion is stuck in the card hole.

[0032] In application, in this embodiment, a toilet device 6 is provided on the extension rod 4, and the toilet device 6 includes a support frame 61 and a seat ring 62 provided on the support frame. In other embodiments, the extension rod 4 can be provided as an armrest, or a third-level ladder can be connected to the extension rod 4, or it can adapt to various application scenarios.

[0033] The above schematically describes the present invention and its embodiments. This description is not restrictive, and what is shown in the drawings is only one of the embodiments of the present invention. The actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention, design similar structural modes and embodiments to this technical solution without creative efforts, they should all fall within the protection scope of the present invention.

Claims

1. A height-adjustable lifting ladder for children, characterized in that: It includes a base and a lifting step arranged on the base, a stepless adjustment structure that can adjust the lifting step is arranged between the base and the lifting step, the stepless adjustment structure includes an adjustment nut arranged on one of the base and the lifting step and an adjustment bolt arranged on the other, one of the base and the lifting step is provided with a placement hole groove structure for placing the adjustment nut and an avoidance hole groove structure for allowing the adjustment bolt to enter, and the other is fixedly connected to the adjustment bolt.

2. A height-adjustable lifting ladder for children according to claim 1, characterized in that: The adjusting bolt is provided with a fixing part, and the lifting ladder is provided with a fixing hole for accommodating the fixing part. The fixing part is placed in the fixing hole and connected with the lifting ladder through screws.

3. A height-adjustable lifting ladder for children according to claim 2, characterized in that: It also includes an extension rod arranged on the lifting ladder, the extension rod is provided with a mounting portion, the fixing portion is provided with a mounting groove for accommodating the mounting portion, after the mounting portion is placed in the mounting groove, the mounting portion, the fixing portion and the base are connected by the same screw.

4. A height-adjustable lifting ladder for children according to claim 2, characterized in that: It also includes an extension rod arranged on the lifting ladder, the extension rod is provided with a mounting portion, the mounting portion is provided with a mounting groove for accommodating a fixing portion, the mounting portion is placed behind the fixing hole, the fixing portion is placed behind the mounting groove, and the mounting portion, the fixing portion and the base are connected by the same screw.

5. The height-adjustable lifting ladder for children according to claim 1, characterized in that: The height of the placement hole slot structure is adapted to the height of the adjusting nut, so that the upper and lower end faces of the adjusting nut abut against the upper and lower faces of the placement hole slot structure.

6. A height-adjustable lifting ladder for children according to any one of claims 1 to 5, characterized in that: The adjusting bolt is provided with a guide portion, and the base is provided with a guide groove matched with the guide portion.

7. A height-adjustable lifting ladder for children according to any one of claims 1 to 5, characterized in that: The base is provided with multiple scale marks for indicating the adjustable height, and the lifting ladder is provided with an indicator position for indicating the scale marks. When the lifting ladder is adjusted to a fixed height, the indicator position is aligned with the scale mark to display the height of the lifting ladder. The scale mark is a horizontal line protrusion provided on the base, and the indicator position is the bottom edge of the lifting ladder.

8. A height-adjustable lifting ladder for children according to any one of claims 1 to 5, characterized in that: It also includes a first step, the base is arranged on the first step, the first step and the base are connected by snaps or screws or are integrally formed, the first step is provided with a snap protrusion for snap connection, and the base is provided with a snap hole for cooperating with the snap protrusion.

9. A height-adjustable lifting ladder for children according to claim 3 or 4, characterized in that: The extension rod is provided with a toilet device.

10. The height-adjustable lifting ladder for children according to claim 9, characterized in that: The toilet device comprises a support frame and a seat ring arranged on the support frame.

Images