Feeding equipment for extension ladder production

By designing a feeding device with limiting and adjusting mechanisms, the problem of inconvenient raw material length adjustment in the production of telescopic ladders in the existing technology has been solved, realizing automatic fixed-distance cutting and length adjustment, and improving the practicality and production efficiency of the equipment.

CN224073903UActive Publication Date: 2026-04-03GUANGDONG GUANGHUA HARDWARE PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The existing feeding equipment cannot automatically adjust the length of the raw materials in the production of telescopic ladders, which requires operators to make manual adjustments and reduces the practicality of the equipment.

Method used

A feeding device including a limiting device and an adjusting device was designed. Through the cooperation of a hydraulic cylinder and a threaded rod, the material is automatically cut at a fixed distance and its length is adjusted. The hydraulic cylinder drives the horizontal plate and rollers for limiting, and the motor drives the rubber roller to rotate. Combined with the sliding of the scale line and the slider, the length of the material is automatically adjusted.

Benefits of technology

It enables automatic fixed-distance cutting and length adjustment of materials for telescopic ladders, improves the practicality of feeding equipment, reduces manual intervention, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of extension ladder processing, in particular to feeding equipment for extension ladder production, which comprises a platform and supporting legs, the lower end of the platform is fixedly connected with a plurality of supporting legs, the upper end of the platform is fixedly connected with a frame, the lower end of the frame is provided with a limiting device, and the left end of the platform is provided with an adjusting device. According to the feeding equipment for extension ladder production, through cooperation of a limiting device and an adjusting device, an operator drives a threaded rod to rotate through a handle, so that the threaded rod can drive a sliding block on the surface to slide on the surface of a sliding rod, the rightmost end surface of the sliding block corresponds to a scale line, and the distance between the sliding block and the rightmost end of a platform can be adjusted; and the raw material cutting length can be adjusted, and the feeding length of the extension ladder can be adjusted, so that the practicability of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of telescopic ladder processing technology, specifically a feeding device for telescopic ladder production. Background Technology

[0002] A telescopic ladder is a type of ladder that can be extended and shortened like a fishing rod. There are two types: engineering telescopic ladders and bamboo-joint telescopic ladders. They are very convenient to carry and store.

[0003] For example, a seamless steel pipe feeding device with authorization announcement number "CN215465514U" uses a support body in conjunction with an electric slider and a sliding rod to feed and position steel pipes of different diameters. However, this device is not convenient for transporting materials to telescopic ladders at fixed distances, requiring operators to manually adjust the position and length when transporting materials to the telescopic ladder, thus reducing the device's practicality. Utility Model Content

[0004] The purpose of this utility model is to solve the problem of low practicality of the device, and to propose a feeding device for telescopic ladder production.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a feeding device for telescopic ladder production, including a platform and support legs. Multiple support legs are fixedly connected to the lower end of the platform, and a frame is fixedly connected to the upper end of the platform. A limiting device is provided at the lower end of the frame, and an adjustment device is provided at the left end of the platform. The inner wall of the platform is rotatably connected to the rotating parts at both ends of multiple rubber rollers through bearings.

[0007] Preferably, the limiting device includes a hydraulic cylinder and a horizontal plate. The upper end of the hydraulic cylinder is fixedly connected to the frame, and the telescopic end of the hydraulic cylinder is fixedly connected to the horizontal plate by bolts. The upper protruding part of the horizontal plate passes through the frame, and the lower end of the horizontal plate is symmetrically fixedly connected to a roller frame. The roller frames on both sides are rotatably connected to the rotating parts of two grooved wheels by bearings.

[0008] Preferably, the front end of the platform is fixedly connected to two motors via a motor frame, and the output shafts of the motors on both sides are fixedly connected to the rotating parts of two rubber rollers.

[0009] Preferably, the surface of the platform has through holes, and the two ends of the slide rod are fixedly connected to the through holes of the platform, and the upper end of the platform has scale lines.

[0010] Preferably, the adjustment device includes a handle and a threaded rod. Both ends of the threaded rod are rotatably connected to the platform via bearings. One end of the threaded rod passes through the platform and is fixedly connected to the handle. The outer wall of the threaded rod is threadedly connected to the slider.

[0011] Preferably, the outer wall of the slider is in contact with the upper surface of the platform, and the slider is slidably connected to the slide rod through a through hole in the surface.

[0012] The present invention provides a feeding device for telescopic ladder production, which has the following advantages: through the cooperation of the limiting device and the adjusting device, the operator drives the threaded rod to rotate by the handle, so that the threaded rod can drive the slider on the surface of the sliding rod to slide. The rightmost end of the slider is aligned with the scale line, so that the distance between the slider and the rightmost end of the platform can be adjusted, thereby realizing the adjustment of the cutting length of the raw material. By adjusting the feeding length of the telescopic ladder, the practicality of this device is improved. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This utility model Figure 1 The front view;

[0015] Figure 3 This utility model Figure 1 A front sectional view;

[0016] Figure 4 This utility model Figure 1 Top view;

[0017] Figure 5 This utility model Figure 3 Schematic diagram of part A in the middle;

[0018] Figure 6 This is a three-dimensional schematic diagram of the grooved wheel of this utility model.

[0019] In the diagram: 1. Platform, 2. Limiting device, 201. Hydraulic cylinder, 202. Horizontal plate, 203. Roller frame, 204. Grooved wheel, 3. Frame, 4. Rubber roller, 5. Support leg, 6. Slide bar, 7. Scale line, 8. Adjustment device, 801. Handle, 802. Slider, 803. Threaded rod, 9. Motor. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] See attached document Figure 1-6In this embodiment, a feeding device for producing telescopic ladders includes a platform 1 and support legs 5. Multiple support legs 5 are fixedly connected to the lower end of the platform 1. A knife groove is provided on the upper right side of the platform 1. A frame 3 is fixedly connected to the upper end of the platform 1. A limiting device 2 is provided at the lower end of the frame 3. An adjusting device 8 is provided at the left end of the platform 1. The inner wall of the platform 1 is rotatably connected to the rotating parts at both ends of multiple rubber rollers 4 through bearings.

[0022] The front end of platform 1 is fixedly connected to two motors 9 via a motor frame. The output shafts of the two motors 9 are fixedly connected to the rotating parts of the two rubber rollers 4. The motors 9 are designed to meet the actual working requirements. The surface of platform 1 has through holes, and the two ends of the slide rod 6 are fixedly connected to the through holes of platform 1. The upper end of platform 1 has a scale line 7, and the reference of the scale line 7 is the rightmost end of platform 1. The outer wall of slider 802 is in contact with the upper surface of platform 1. Slider 802 is slidably connected to slide rod 6 through the through holes on the surface.

[0023] The limiting device 2 includes a hydraulic cylinder 201 and a horizontal plate 202. The upper end of the hydraulic cylinder 201 is fixedly connected to the frame 3. The hydraulic cylinder 201 can meet the working requirements according to actual needs. The telescopic end of the hydraulic cylinder 201 is fixedly connected to the horizontal plate 202 by bolts. The horizontal plate 202 can be disassembled by bolts on both sides, so that the grooved wheel 204 at the lower end of the horizontal plate 202 can be replaced with grooved wheels of different groove widths. The upper protruding part of the horizontal plate 202 passes through the frame 3. The lower end of the horizontal plate 202 is symmetrically fixedly connected to a roller frame 203. The roller frames 203 on both sides are rotatably connected to the rotating parts of the two grooved wheels 204 through bearings. The grooved wheels 204 are made of rubber.

[0024] The adjusting device 8 includes a handle 801 and a threaded rod 803. Both ends of the threaded rod 803 are rotatably connected to the platform 1 through bearings. One end of the threaded rod 803 passes through the platform 1 and is fixedly connected to the handle 801. The outer wall of the threaded rod 803 is threadedly connected to the slider 802.

[0025] Working principle:

[0026] When feeding materials during the processing of telescopic ladders:

[0027] The telescopic ladder is made of square, hollow tubular material. The operator places the material onto the surface of multiple rubber rollers 4 and controls the hydraulic cylinder 201 to extend its telescopic end, causing the horizontal plate 202 to move downwards synchronously. The horizontal plate 202 drives the grooved wheels 204 on both sides to move synchronously through the roller frames 203 on both sides. This allows the grooved wheels 204 to fit against the surface of the material through their grooves, thus limiting the material's movement. Simultaneously, the two motors 9 on both sides are controlled to rotate, causing the output shafts of the motors 9 to rotate synchronously, which in turn drives the two rubber rollers 4 to rotate. The rotation of the rubber rollers 4 moves the material, causing one end of the material to fit against the surface of the slider 802. At the same time, the motors 9 are stopped. By controlling the position of the slider 802, the length of the transported material can be controlled. The material is then cut using a cutting device with the right-side groove of the platform 1 as a reference. After one cut, the material is placed again for transport and cutting, following the same procedure.

[0028] Adjustment process:

[0029] When the length of the raw material needs to be adjusted, the operator drives the threaded rod 802 to rotate by the handle 801, so that the threaded rod 802 can drive the slider 802 on the surface of the slide bar 6 to slide. The rightmost surface of the slider 802 is aligned with the scale line 7, so that the distance between the slider 802 and the right side of the cutting groove of the platform 1 can be adjusted, thereby realizing the adjustment of the cutting length of the raw material.

[0030] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A feeding device for telescopic ladder production, comprising a platform (1) and support legs (5), the lower end of the platform (1) being fixedly connected to a plurality of support legs (5), characterized in that: The upper end of the platform (1) is fixedly connected with a frame (3), the lower end of the frame (3) is provided with a limiting device (2), the left end of the platform (1) is provided with an adjusting device (8), and the inner wall of the platform (1) is rotatably connected with the rotating parts at the two ends of the plurality of rubber rollers (4) through bearings.

2. The feeding apparatus for the production of extension ladders according to claim 1, characterized in that: The limiting device (2) comprises a hydraulic cylinder (201) and a cross plate (202), the upper end of the hydraulic cylinder (201) is fixedly connected with the frame (3), the telescopic end of the hydraulic cylinder (201) is fixedly connected with the cross plate (202) through bolts, the upper end of the cross plate (202) protruding part penetrates the frame (3), and the lower end of the cross plate (202) is fixedly connected with a roller frame (203) in a symmetrical manner.

3. The feeding apparatus for the production of extension ladders according to claim 1, characterized in that: The front end of the platform (1) is fixedly connected with two motors (9) through a motor frame, and the output shafts of the two motors (9) are fixedly connected with the rotating parts of the two rubber rollers (4).

4. The production of extension ladder with feeding device according to claim 1, characterized in that: The surface of the platform (1) is provided with a through hole, the both ends of the slide rod (6) are fixedly connected with the through hole in the platform (1), and the upper end of the platform (1) is provided with a scale line (7).

5. The production of extension ladder with feeding device according to claim 1, characterized in that: The adjusting device (8) comprises a handle (801) and a threaded rod (803), the both ends of the threaded rod (803) are rotatably connected with the platform (1) through bearings, one end of the threaded rod (803) penetrates the platform (1), one end of the threaded rod (803) is fixedly connected with the handle (801), and the outer wall of the threaded rod (803) is threadedly connected with a sliding block (802).

6. The feeding apparatus for the production of extension ladders according to claim 5, characterized in that: The outer wall of the sliding block (802) is attached to the upper surface of the platform (1), and the sliding block (802) is slidably connected with the slide rod (6) through the through hole formed in the surface.

Citation Information

Patent Citations

  • Seamless steel tube feeding equipment

    CN215465514U