Automatic folding ladder stand

Abstract

The utility model relates to the technical field of crawling ladders, in particular to an automatic folding crawling ladder. Comprising a platform, supporting stand columns, a driving mechanism, a linkage mechanism and a ladder step mechanism, the platform comprises an upper platform body and a lower platform body, the supporting stand columns are arranged between the upper platform body and the lower platform body, the driving mechanism is arranged between the two supporting stand columns, and the output end of the driving mechanism is meshed with a gear bearing rod through a gear; the gear bearing rod is connected with a linkage mechanism, one end of the linkage mechanism is connected with a ladder step mechanism, and the ladder step mechanism drives the linkage mechanism to be opened or closed through a driving mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of ladders, in particular to an automatic folding ladder. Background Art

[0002] The known hydraulic presses are all relatively high. Sometimes, when installing or repairing, you need to use a ladder to climb to the top. There are two types of ladders at present. One is a vertical ladder structure, which is inconvenient to go up and down and has great safety hazards. The other is an inclined ladder structure. The inclined ladder solves the problem of convenient up and down, but when the ladder is not in use, this structure seems to take up a lot of space. And both of these are fixed, which is not convenient to use in other occasions.

[0003] Therefore, the utility model proposes an automatic folding ladder, which can not only solve the problem of convenient going up and down, but also reduce the occupied area. Summary of the invention

[0004] The utility model aims to solve the problems existing in the prior art and provides an automatic folding ladder.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An automatic folding ladder comprises a platform, a supporting column, a driving mechanism, a linkage mechanism and a step mechanism, wherein the platform comprises an upper platform and a lower platform, a supporting column is arranged between the upper platform and the lower platform, a driving mechanism is arranged between the two supporting columns, an output end of the driving mechanism is meshed with a gear bearing rod through a gear, the gear bearing rod is connected to a linkage mechanism, one end of the linkage mechanism is connected to a step mechanism, and the step mechanism drives the linkage mechanism to open or close through the driving mechanism.

[0007] Furthermore, the step mechanism includes step support columns and steps, the step support columns are movably connected to the bottom end of the upper platform and are symmetrically arranged on both sides of the bottom end of the upper platform, and a plurality of steps are fixedly arranged at intervals between two step support columns.

[0008] Furthermore, the linkage mechanism comprises a first connecting rod, a second connecting rod and a linkage bearing rod, and the first connecting rod and the second connecting rod are disposed at both ends of the linkage bearing rod.

[0009] Furthermore, one end of the first connecting rod is fixedly connected to the gear bearing rod, and the other end is rotatably connected to the bearing rod. One end of the second connecting rod is fixedly connected to the linkage bearing rod, and the other end is rotatably connected to the outer side of the step support column. The ends of the first connecting rod and the second connecting rod are arranged adjacent to each other.

[0010] Furthermore, the linkage mechanism also includes a third connecting rod, one end of which is rotatably connected to the outer side of the step support column, and the other end is rotatably connected to the ear seat, and the ear seat is fixedly connected to the lower end of the support column.

[0011] Furthermore, the third connecting rod is symmetrically arranged on both sides of the step mechanism.

[0012] Furthermore, a roller bearing rod is fixedly arranged between the ends of the step support columns, and rollers are arranged at both ends of the roller bearing rod. Furthermore, the guide rail reference groove and the guide rail clamping inclined groove are symmetrically arranged on both sides of the frame.

[0013] Furthermore, the driving mechanism includes a motor support and a motor, and the motor support is fixedly arranged between two supporting columns.

[0014] Compared with the existing technology, the utility model provides an automatic folding ladder. Its advantages are:

[0015] Automatic operation, easy to retract and extend, takes up little space.

[0016] The use of an inclined ladder increases safety compared to a vertical ladder.

[0017] The structure is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of an automatic folding ladder of the utility model;

[0019] Figure 2 This is an automatic folding ladder of the utility model;

[0020] In the figure: 1-upper platform, 11-lower platform, 2-support column, 3-gear, 30-gear bearing rod, 4-step support column, 41-step, 50-linking bearing rod, 51-first connecting rod, 52-second connecting rod, 53-third connecting rod, 6-ear seat, 7-roller bearing rod, 71-roller, 8-motor, 81 motor bracket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front",

[0023] The directions or positional relationships indicated by “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, it cannot be understood as a limitation on the present invention. At the same time, the terms “first”, “second”, etc. are only for distinguishing the names of the components, and there is no primary or secondary relationship. Therefore, it cannot be understood as a limitation on the present invention.

[0024] Embodiment 1, as Figure 1 , including a platform, a supporting column 2, a driving mechanism, a linkage mechanism and a step mechanism, characterized in that: the platform includes an upper platform 1 and a lower platform 11, a supporting column 2 is arranged between the upper platform 1 and the lower platform 11, a driving mechanism is arranged between the two supporting columns 2, the output end of the driving mechanism is connected to a gear bearing rod 30 through a gear 3, the gear bearing rod 30 is connected to a linkage mechanism, one end of the linkage mechanism is connected to a step mechanism, and the step mechanism drives the linkage mechanism to open or close through the driving mechanism.

[0025] In this embodiment, four supporting columns 2 are provided, and the driving mechanism is provided on a side close to the step mechanism. Through the folding and closing of the linkage mechanism, the step mechanism will also be folded synchronously.

[0026] The step mechanism includes a step support column 4 and steps 41. The step support column 4 is fixedly connected to the bottom end of the upper platform 1 and symmetrically arranged on both sides of the bottom end of the upper platform 1. A plurality of steps 41 are fixedly arranged at intervals between two step support columns 4.

[0027] The step support column 4 is movably connected to the upper platform 1, and the movably connected mode can be a loose-leaf connection or a bearing connection, so that the platform can be climbed or descended to the ground through the steps.

[0028] The linkage mechanism comprises a first connecting rod 51 , a second connecting rod 52 , and a linkage bearing rod 50 . The first connecting rod 51 and the second connecting rod 52 are disposed at both ends of the linkage bearing rod 50 .

[0029] One end of the first connecting rod 51 is fixedly connected to the gear bearing rod 30, and the other end is rotatably connected to the bearing rod 50. One end of the second connecting rod 52 is fixedly connected to the linkage bearing rod 50, and the other end is rotatably connected to the outer side of the step support column 4. A shaft sleeve is provided between one end of the second connecting rod 52 and the step support column 4. The shaft sleeve can make the sliding between the two more lubricated.

[0030] Through the design of this technical solution, when the gear bearing rod 31 is rotated, the first connecting rod 51 will swing accordingly, and drive the linked bearing rod 50 and the second connecting rod 52 to swing.

[0031] The linkage mechanism further comprises a third connecting rod 53 , one end of which is rotatably connected to the outside of the step support column 4 , and the other end of which is rotatably connected to the ear seat 6 , and the ear seat 6 is fixedly connected to the lower end of the support column 2 .

[0032] In order to make the ladder structure more stable, a third connecting rod 53 is provided. The third connecting rod 53 is rotatably connected to the outer side of the step support column 4. The rotating contact part is connected by a shaft sleeve, which can make the sliding between the two more lubricated.

[0033] The third connecting rod 53 is symmetrically arranged on both sides of the step mechanism.

[0034] In this embodiment, the connection point between the third connecting rod 53 and the step support column 4 is higher than the connection point between the second connecting rod 52 and the step support column 4. The angle between the first connecting rod 51 and the second connecting rod 52 always changes.

[0035] In order to make the step mechanism more convenient to move out, a roller bearing rod 7 is fixedly arranged between the ends of the two step support columns 4, and rollers 71 are arranged at both ends of the roller bearing rod 7. The use of the roller 71 can make the step mechanism convenient to fold and open.

[0036] The driving mechanism comprises a motor support and a motor 8, wherein the motor support is fixedly arranged between two supporting columns 2. The output end of the motor 8 is a large gear, which is meshedly connected with a gear on a gear bearing rod 31.

[0037] The driving mechanism comprises a motor support and a motor 8 , and the motor support is fixedly arranged between two supporting columns 2 .

[0038] In order to facilitate the movement of the entire ladder, rollers can also be installed at the bottom of the lower platform 11.

[0039] The use principle of the utility model is as follows: when the ladder is to be used, the motor is started, and the motor rotation drives the gear 3 to rotate. After the gear 3 rotates, the gear bearing rod 30 will also rotate. One end of the first connecting rod 51 is fixedly connected to the gear bearing rod 30, so the first connecting rod 51 will make a circular motion. Because one end of the linkage bearing rod 50 is simultaneously connected to the first connecting rod 51 and the second connecting rod 52, and the second connecting rod 52 is rotatably connected to the step support column 4, the first connecting rod 51 will only move in the direction of the step mechanism, and the second connecting rod 52 will also move with the first connecting rod 51 until the motor stops rotating.

[0040] The step support column 4 is rotatably connected to the third connecting rod 53 , so when the step support column 4 moves outward, the third connecting rod 53 will also move with the step support column 4 until the motor stops rotating.

[0041] The roller 71 plays a certain auxiliary role in the use of the ladder.

[0042] When the ladder is to be folded, the motor is reversed, the angle between the first connecting rod 51 and the second connecting rod 52 gradually decreases, and the second connecting rod 52 pulls the step mechanism closer to the supporting column 2 until the step mechanism is completely folded and the motor stops rotating.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic folding ladder, comprising a platform, a supporting column (2), a driving mechanism, a linkage mechanism and a step mechanism, characterized in that: The platform comprises an upper platform (1) and a lower platform (11), a supporting column (2) is arranged between the upper platform (1) and the lower platform (11), a driving mechanism is arranged between the two supporting columns (2), an output end of the driving mechanism is meshed with a gear bearing rod (30) through a gear (3), the gear bearing rod (30) is connected to a linkage mechanism, one end of the linkage mechanism is connected to a step mechanism, the step mechanism comprises a step support column (4) and steps (41), the step support column (4) is movably connected to the bottom end of the upper platform (1), and is symmetrically arranged on both sides of the bottom end of the upper platform (1), a plurality of steps (41) are fixedly arranged at intervals between the two step support columns (4), and the step mechanism drives the linkage mechanism to open or close through the driving mechanism.

2. The automatic folding ladder according to claim 1, characterized in that: The linkage mechanism comprises a first connecting rod (51), a second connecting rod (52), and a linkage bearing rod (50), and both ends of the linkage bearing rod (50) are provided with the first connecting rod (51) and the second connecting rod (52).

3. The automatic folding ladder according to claim 2, characterized in that: One end of the first connecting rod (51) is fixedly connected to the gear bearing rod (30), and the other end is rotatably connected to the bearing rod (50); one end of the second connecting rod (52) is fixedly connected to the linkage bearing rod (50), and the other end is rotatably connected to the outer side of the step support column (4); the ends of the first connecting rod (51) and the second connecting rod (52) are arranged adjacent to each other.

4. The automatic folding ladder according to claim 3, characterized in that: The linkage mechanism further comprises a third connecting rod (53), one end of the third connecting rod (53) being rotatably connected to the outside of the step support column (4), and the other end of the third connecting rod (53) being rotatably connected to the ear seat (6), and the ear seat (6) being fixedly connected to the lower end of the support column (2).

5. The automatic folding ladder according to claim 4, characterized in that: The third connecting rod (53) is symmetrically arranged on both sides of the step mechanism.

6. The automatic folding ladder according to claim 1, characterized in that: A roller bearing rod (7) is fixedly arranged between the ends of the step support columns (4), and rollers (71) are arranged at both ends of the roller bearing rod (7).

7. The automatic folding ladder according to claim 1, characterized in that: The driving mechanism comprises a motor support and a motor (8), and the motor support is fixedly arranged between two supporting columns (2).

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