Electric multi-stage turnover folding ladder

Abstract

The utility model discloses an electric multi-stage turnover folding ladder which comprises a frame, a turnover bracket, pedals, a telescopic connecting rod mechanism and an electric push rod, the frame is a cuboid frame, and two stand columns at the front end are front stand columns. The pair of overturning supports are symmetrically hinged between the two front stand columns of the frame, and a transverse shaft is connected between the two overturning supports; a plurality of sections of pedals are connected into a whole through a telescopic connecting rod mechanism; the lower end of the front section of the telescopic connecting rod mechanism is hinged with the bottom plate; a motor part of the electric push rod is connected to the bottom of the frame, the front end of the push rod part is hinged to the transverse shaft, the electric push rod pushes and pulls the transverse shaft to drive the overturning support, the telescopic connecting rod mechanism, the pedal and the bottom plate which are integrated to overturn forwards or backwards, and the pedal is driven by the telescopic connecting rod mechanism to be unfolded or folded together during overturning. The pedal can be automatically turned over and folded through electric control, the pedal can be further contracted after being turned over and folded through the connecting rod, and space is saved.

Description

Technical Field

[0001] The utility model relates to an auxiliary climbing device, in particular to an electric multi-stage flip folding ladder. Background Art

[0002] Warehouses, RVs, and large vehicles are located at higher places, and it is inconvenient for users to go up and down from the ground to the trunk or cargo box. In order to facilitate climbing, users need to be equipped with climbing ladders, or correspondingly set pedals on the cargo box to facilitate climbing.

[0003] The existing foldable pedal structure is a structure in which a manual or electric push rod directly drives the pedal to flip. This structure can only unfold the pedal or fold it. When multiple pedals are used, the total length of the pedal cannot be changed. In this way, the multi-stage pedal, i.e., the device of multiple pedals, still occupies a large space. Summary of the invention

[0004] In view of the above existing technical problems, the utility model provides an electric multi-stage flip folding ladder, which can be automatically flipped and folded through electric control. After the multi-stage steps are flipped and folded, the total length can be further reduced to save space.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions: an electric multi-stage flip folding ladder, comprising a frame, a flip bracket, a pedal, a telescopic connecting rod mechanism and an electric push rod; the frame is a rectangular parallelepiped frame, and the two front columns are front columns; the flip bracket has a pair, which are symmetrically hinged between the two front columns of the frame, and a horizontal axis is connected between the two flip brackets; the pedal has multiple sections, which are connected as a whole by the telescopic connecting rod mechanism; the rear end of the telescopic connecting rod mechanism is hinged to the flip bracket, and the lower end of the front section of the telescopic connecting rod mechanism is hinged to the bottom plate; the motor part of the electric push rod is connected to the bottom of the frame, and the front end of the push rod part is hinged on the horizontal axis. The electric push rod pushes and pulls the horizontal axis to drive the integrated flip bracket, the telescopic connecting rod mechanism, the pedal and the bottom plate to flip forward or backward. While flipping, the pedal is expanded or retracted together under the drive of the telescopic connecting rod mechanism.

[0006] Furthermore, in the utility model, the pedal has five sections to form a five-level pedal.

[0007] Furthermore, the utility model provides that the lower middle section of the telescopic link mechanism is hinged to the bottom plate via a front support rod, and the lower rear section of the telescopic link mechanism is hinged to the frame via a rear support rod.

[0008] The utility model further provides a limit block on the flip bracket, and the front column is bent inward to form a limit retaining edge; when the pedal flips backward, the limit block is clamped on the bottom bracket of the frame to form a limit; when the pedal flips forward, the limit block is clamped on the limit retaining edge to form a limit.

[0009] Furthermore, the utility model provides that the pedal is provided with water-permeable holes and anti-skid patterns.

[0010] The beneficial effects of adopting the above technical solution are as follows: the utility model pedal realizes electric control flipping through the electric push rod. When folding, the electric push rod is pulled back and the pedal flips backward. Since there is a telescopic connecting rod mechanism on the pedal, the pedal will further shrink while flipping backward. Compared with a simple flip ladder, the total length of the pedal after folding is smaller and more space-saving. When in use, the electric push rod is pushed forward, the pedal flips forward, and the telescopic connecting rod mechanism drives the pedal to unfold, which is convenient to operate and saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the pedal of the utility model when it is unfolded;

[0012] Figure 2 This is a connection diagram of the electric push rod of the utility model;

[0013] Figure 3 This is a schematic diagram of the pedal of the utility model in a retracted and folded state;

[0014] In the figure: 1. frame, 2. electric push rod, 3. front column, 4. rear support rod, 5. flip bracket, 6. bottom plate, 7. front support rod, 8. telescopic connecting rod mechanism, 9. hinge shaft, 10. pedal, 11. push rod, 12. horizontal axis, 13. limit block. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] An embodiment of the present utility model: Figure 1 and Figure 2As shown, an electric multi-stage flip folding ladder comprises a frame 1, a flip bracket 5, a pedal 10, a telescopic connecting rod mechanism 8 and an electric push rod 2; the frame 1 is a rectangular parallelepiped frame, and the two front columns are front columns 3; the flip bracket 5 has a pair, which is symmetrically hinged between the two front columns 3 of the frame 1, and a transverse axis 12 is connected between the two flip brackets 5; the pedal 10 has multiple sections, which are connected as a whole by the telescopic connecting rod mechanism 8; the rear end of the telescopic connecting rod mechanism 8 is hinged to the flip bracket 5, and the lower end of the front section of the telescopic connecting rod mechanism 8 is hinged to the bottom plate 6 through a hinge shaft 9; the motor part of the electric push rod 2 is connected to the bottom of the frame 1, and the front end of the push rod 11 part is hinged on the transverse axis 12. The electric push rod 2 pushes and pulls the transverse axis 12, driving the integrated flip bracket 5, the telescopic connecting rod mechanism 8, the pedal 10 and the bottom plate 6 to flip forward or backward. While flipping, the pedal 10 is driven by the telescopic connecting rod mechanism 8 to expand or shrink together.

[0018] The utility model comprises a horizontal axis 12, a flip bracket 5, a telescopic connecting rod mechanism 8, a pedal 10 and a bottom plate 6 to form an integral pedal structure, and an electric push rod 2 is used to realize an electric controlled flip. Figure 2 and Figure 3 As shown in the figure, the electric push rod 2 is pulled back, and the whole footrest structure flips backward. Since there is a telescopic connecting rod mechanism 8 on the pedal 10, the pedal 10 will further shrink while flipping backward. Compared with a simple flip ladder, the total length of the pedal 10 after folding is smaller, which saves more space. Figure 1 and Figure 2 As shown, the electric push rod 2 is pushed forward, the entire footrest structure flips forward, and the telescopic connecting rod mechanism 8 drives the pedal 10 to unfold, which is convenient to operate and saves time and effort.

[0019] In other specific embodiments of the present invention, the rest is the same as the above embodiments, except that: Figure 1 As shown, the pedal 10 has five sections, forming a five-level pedal. The number of pedals 10 can be adjusted according to actual needs, and a commonly used five-level pedal is selected as an example.

[0020] In other specific embodiments of the present invention, the rest is the same as the above embodiments, except that: Figure 1 and Figure 2 As shown, the middle section of the telescopic link mechanism 8 is hinged to the bottom plate 6 through the front support rod 7, and the rear section of the telescopic link mechanism 8 is hinged to the frame 1 through the rear support rod 4. When there are a large number of pedals 10, it is necessary to add corresponding support points to ensure the strength of the pedals. Here, taking a five-level pedal as an example, two support points are added to the telescopic link mechanism 8.

[0021] In other specific embodiments of the present invention, the rest is the same as the above embodiments, except that: Figure 3As shown, the flip bracket 5 is provided with a limit block 13, and the front column 3 is bent inward to form a limit retaining edge; when the pedal 10 flips backward, the limit block 13 is clamped on the bottom bracket of the frame 1 to form a limit; when the pedal 10 flips forward, the limit block 13 is clamped on the limit retaining edge to form a limit. The limit block 13 can prevent damage to the structure caused by excessive flipping.

[0022] In other specific embodiments of the present invention, the rest is the same as the above embodiments, except that: Figure 1 As shown, the pedal 10 has water-permeable holes and anti-skid patterns, which play the role of drainage and anti-skid.

[0023] Of course, the above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the main technical solution of the utility model should be included in the protection scope of the utility model.

Claims

1. An electric multi-stage folding ladder, characterized in that: It includes a frame, a flip bracket, a pedal, a telescopic connecting rod mechanism and an electric push rod; The frame is a rectangular parallelepiped frame, and the two front columns are front columns; The flip brackets are provided in a pair, symmetrically hinged between the two front upright posts of the frame, and a horizontal axis is connected between the two flip brackets; The pedal has multiple sections, which are connected as a whole by the telescopic connecting rod mechanism; The rear end of the telescopic link mechanism is hinged to the flip bracket, and the lower end of the front section of the telescopic link mechanism is hinged to the bottom plate; The motor part of the electric push rod is connected to the bottom of the frame, and the front end of the push rod part is hinged on the horizontal axis. The electric push rod pushes and pulls the horizontal axis to drive the integrated flip bracket, telescopic connecting rod mechanism, pedal and bottom plate to flip forward or backward. During the flipping, the pedal is expanded or retracted together under the drive of the telescopic connecting rod mechanism.

2. The electric multi-stage folding ladder according to claim 1, characterized in that: The pedal has five sections, forming a five-level pedal.

3. The electric multi-stage folding ladder according to claim 2, characterized in that: The lower part of the middle section of the telescopic link mechanism is hinged to the bottom plate through the front support rod, and the lower part of the rear section of the telescopic link mechanism is hinged to the frame through the rear support rod.

4. An electric multi-stage folding ladder according to claim 1 or 2, characterized in that: A limit block is arranged on the flip bracket, and the front column is bent inward to form a limit retaining edge; when the pedal flips backward, the limit block is clamped on the bottom bracket of the frame to form a limit; when the pedal flips forward, the limit block is clamped on the limit retaining edge to form a limit.

5. An electric multi-stage flip folding ladder according to claim 1 or 2, characterized in that: The pedal is provided with water-permeable holes and anti-skid patterns.

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