Step frame capable of adjusting step height

Abstract

The utility model relates to the technical field of step frames, in particular to a step frame capable of adjusting step height, which comprises a plurality of groups of step plates, piston rods are fixedly mounted at the bottoms of the step plates, hollow columns are slidably inserted into the bottoms of the piston rods, and sliding shafts are fixedly mounted on two sides of the plurality of groups of step plates. A guide plate is arranged on one side of the sliding shaft, a plurality of sets of sliding grooves are formed in the guide plate, the sliding shaft is inserted into the sliding grooves in a sliding mode, and an electric push rod b used for adjusting the height of the step plate is fixedly installed at the bottom of the step plate on the outermost side. The guide plates are arranged, the electric push rod b pushes the step plate on the electric push rod b to ascend to the preset height, the guide plates on the sides of the step plate can drive other step plates to quickly ascend together, the heights of steps are uniform, the workload of workers for calculating the height of each step is reduced, and the working efficiency is improved. And the installation efficiency of the step frame is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of step ladders, in particular to a step ladder capable of adjusting the step height. Background Art

[0002] Compared with general fixed steps, step ladders are temporary and flexible. The height of each step on a general step ladder needs to be measured and set one by one, which leads to a calculation for adjusting the height between steps and requires adjustment as needed, thus being disadvantageous for improving the installation efficiency of the step ladder. Content of the Utility Model

[0003] Aiming at the above-mentioned shortcomings of the prior art, the utility model provides a step ladder capable of adjusting the step height, which can effectively solve the problem of low efficiency in adjusting the step height of the existing step ladder.

[0004] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0005] The utility model provides a step ladder capable of adjusting the step height, including multiple groups of step plates. A piston rod is fixedly installed at the bottom of the step plate, and a hollow column is slidably inserted at the bottom of the piston rod. Sliding shafts are fixedly installed on both sides of multiple groups of step plates, and a guide plate is arranged on one side of the sliding shaft. Multiple groups of sliding grooves are formed on the guide plate, and the sliding shafts are slidably inserted into the sliding grooves. An electric push rod b for adjusting the height of the step plate is fixedly installed at the bottom of the outermost step plate on one side;

[0006] The electric push rod b controls the rotation of the guide plate on its side through a group of step plates it is connected to, thereby driving multiple groups of sliding shafts to rise proportionally.

[0007] Furthermore, a water tank is arranged below the step plate, and a connecting pipe is fixedly connected between the water tank and the hollow column;

[0008] Water is filled in the water tank. When the piston rod rises, the water in the water tank is injected into the hollow column through the connecting pipe.

[0009] Furthermore, a limiting frame is fixedly installed in the water tank, and a pressing plate is slidably installed in the water tank.

[0010] Furthermore, an electric push rod a is fixedly installed at the bottom of the other outermost step plate away from the electric push rod b.

[0011] Furthermore, an infrared emitter is fixedly installed on the telescopic end of the electric push rod b.

[0012] Furthermore, a clamping seat is fixedly installed on the telescopic end of the electric push rod a, and an induction light groove is arranged on the clamping seat.

[0013] Further, the card seat is provided with an image measurement module for calculating the height by which the step board above the card seat needs to be raised relative to the step board on the electric push rod b.

[0014] The technical solution provided by the present utility model has the following beneficial effects compared with the known prior art:

[0015] By arranging a guide plate in the present utility model, when the electric push rod b pushes the step board thereon to rise to a predetermined height, the guide plate on the side of the step board will drive other step boards to rise rapidly together, and the heights between the steps are made uniform, which helps to reduce the workload of staff in calculating the height of each step and improve the installation efficiency of the step frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a sectional structural schematic diagram of the present utility model;

[0019] Figure 3 is a structural schematic diagram of the connecting pipe of the present utility model;

[0020] Figure 4 is a sectional structural schematic diagram of the water tank of the present utility model.

[0021] The reference numerals in the drawings respectively represent: 1, step board; 101, sliding shaft; 102, guide plate; 103, sliding groove; 2, piston rod; 3, hollow column; 4, electric push rod a; 401, card seat; 5, electric push rod b; 501, infrared emitter; 6, water tank; 601, water outlet; 602, limit frame; 603, pressing plate; 7, connecting pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0023] The present utility model will be further described below with reference to the embodiments.

[0024] Embodiment: Referring to the attached Figure 1 —attached Figure 4 As shown, a step frame capable of adjusting the step height includes multiple groups of step plates 1. A piston rod 2 is fixedly installed at the bottom of the step plate 1. While the piston rod 2 is used to support the step plate 1, during the upward movement of the step plate 1, it will also pump the water in the water tank 6 through the hollow column 3. The bottom of the piston rod 2 is slidably inserted with a hollow column 3, and the hollow column 3 is used to support the lifting of the piston rod 2. Sliding shafts 101 are fixedly installed on both sides of multiple groups of step plates 1. A guide plate 102 is arranged on one side of the sliding shaft 101. By setting the guide plate 102, when the guide plate 102 rotates, it can drive all the step plates 1 to rise proportionally, so as to ensure that the relative heights between all the step plates 1 are the same. Multiple groups of sliding grooves 103 are formed on the guide plate 102, and the sliding shaft 101 is slidably inserted into the sliding grooves 103. When the sliding grooves 103 rotate, the position of the sliding shaft 101 relative to the guide plate 102 will change. By setting the sliding grooves 103, it is convenient for the guide plate 102 to rotate. An electric push rod b5 for adjusting the height of the step plate 1 is fixedly installed at the bottom of the outermost step plate 1, and the electric push rod b5 controls the maximum height of the steps of the step frame to rise.

[0025] Specifically, the electric push rod b5 pushes a group of step plates 1 connected thereto to rise. The step plate 1 drives the guide plate 102 on its side to turn. The guide plate 102 drives the sliding shaft 101 on the step plate 1 to rise accordingly, and then drives multiple groups of sliding shafts 101 to rise proportionally, so as to achieve the purpose of quickly and uniformly adjusting the step height of the step frame.

[0026] Furthermore, a water tank 6 is arranged below the step plate 1. The water tank 6 is filled with water. Water outlets 601 are formed on both sides of the water tank 6, which are convenient for connecting with the connecting pipe 7. A connecting pipe 7 is fixedly connected between the water tank 6 and the hollow column 3. The connecting pipe 7 is used to supply the flow of water. When the piston rod 2 rises, the water in the water tank 6 is injected into the hollow column 3 through the connecting pipe 7, thereby increasing the stability of the piston rod 2 to maintain the height on the hollow column 3.

[0027] Furthermore, a limiting frame 602 is fixedly installed inside the water tank 6. The limiting frame 602 restricts the descending height of the pressing plate 603, preventing the pressing plate 603 from descending excessively and blocking the water outlet 601, which would otherwise cause the water in the water tank 6 to be unable to flow through the connecting pipe 7. A pressing plate 603 is slidably installed inside the water tank 6. By providing the pressing plate 603, it is beneficial for the water to rise and fall, and flow evenly and at a constant speed.

[0028] Generally, an ordinary step frame only adjusts the relative height between the steps, often neglecting the relative height between the ground and the first step, resulting in a height difference when the user steps onto the second step plate 1 after stepping onto the first step plate 1, which makes it easy for the user to fall when climbing. Therefore, an electric push rod a4 is fixedly installed at the bottom of the other outermost step plate 1 away from the electric push rod b5. The electric push rod a4 can adjust the height of the group of step plates 1 closest to the ground, thus ensuring that the user maintains a stable stepping height after stepping onto the step frame from the ground.

[0029] Specifically, an infrared emitter 501 is fixedly installed on the telescopic end of the electric push rod b5, and a clamping seat 401 is fixedly installed on the telescopic end of the electric push rod a4. An induction light groove is provided on the clamping seat 401. The infrared emitter 501 emits infrared rays towards the induction light groove on the clamping seat 401. The clamping seat 401 is provided with an image measurement module for calculating the height that the step plate 1 above it needs to rise relative to the step plate 1 on the electric push rod b5, so as to control the electric push rod a4 to drive the step plate 1 above it to rise to a height where the distance from the ground and the distance between the steps are unified.

[0030] Working principle: By controlling the electric push rod b5 to push the step plate 1 on it to rise to a predetermined height, the guide plate 102 on the side of the step plate 1 will drive the other step plates 1 to rise rapidly together, and the height between the steps is unified. During the rising process of the piston rod 2, water in the water tank 6 will be pumped out, and the water in the water tank 6 will be injected into the hollow column 3 through the connecting pipe 7 to enhance the stability of the piston rod 2. When the telescopic end of the electric push rod b5 pushes the step plate 1 to rise, the infrared emitter 501 emits infrared rays towards the induction light groove on the clamping seat 401, and the image measurement module calculates the rising distance between the steps, so as to control the electric push rod a4 to drive the step plate 1 above it to rise to a height where the distance from the ground and the distance between the steps are unified.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the present invention in each embodiment.

Claims

1. A step frame capable of adjusting step height, comprising a plurality of step plates (1), characterized in that: A piston rod (2) is fixedly installed at the bottom of the step plate (1), and a hollow column (3) is slidably inserted at the bottom of the piston rod (2). Sliding shafts (101) are fixedly installed on both sides of multiple groups of the step plates (1). A guide plate (102) is provided on one side of the sliding shaft (101). Multiple groups of sliding grooves (103) are provided on the guide plate (102). The sliding shaft (101) is slidably inserted in the sliding grooves (103). An electric push rod b (5) for adjusting the height of the step plate (1) is fixedly installed at the bottom of the outermost step plate (1); The electric push rod b (5) controls the guide plate (102) on its side to turn through a group of step plates (1) connected to it, thereby driving the multiple groups of sliding shafts (101) to rise in equal proportion.

2. A step frame capable of adjusting step height according to claim 1, characterized in that: A water tank (6) is provided below the step plate (1), and a connecting pipe (7) is fixedly connected between the water tank (6) and the hollow column (3); The water tank (6) is filled with water. When the piston rod (2) rises, the water in the water tank (6) is injected into the hollow column (3) through the connecting pipe (7).

3. A step frame capable of adjusting step height according to claim 2, characterized in that: A limit frame (602) is fixedly installed in the water tank (6), and a pressure plate (603) is slidably installed in the water tank (6).

4. A step frame capable of adjusting step height according to claim 1, characterized in that: An electric push rod a (4) is fixedly mounted on the bottom of the other outermost step plate (1) away from the electric push rod b (5).

5. The step frame capable of adjusting step height according to claim 1, characterized in that: An infrared emitter (501) is fixedly mounted on the telescopic end of the electric push rod b (5).

6. A step frame capable of adjusting step height according to claim 4, characterized in that: A holder (401) is fixedly mounted on the telescopic end of the electric push rod a (4), and a sensing light slot is arranged on the holder (401).

7. A step frame capable of adjusting step height according to claim 6, characterized in that: The card seat (401) is provided with an image measurement module for calculating the distance that the step plate (1) above the card seat (401) needs to be raised relative to the step plate (1) on the electric push rod b (5).

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